【 Weak current College 】 Gulf equipment technical characteristics and parameters (3)

● JTW-ZCD-G3N type intelligent electronic differential fixed temperature heat detector
Smart electronic differential fixed temperature heat detector using high-quality electronic temperature sensors as well as a dedicated control chips and digital bus communication technology, stable performance, reliable. Probes according to application environment can be individually set to differential temperature or fixed temperature detector, and you can set the sensitivity of the differential temperature detector and a fixed temperature detector of alarm temperature to apply different places for the application.
Detectors can bus, annular or two ways mixed cabling and automatic fire alarm controller connected wiring flexibility, ease of installation.
Detector design takes full account of the characteristics of the waterproofing. The entire probe into the cradle and the detection of the first two parts, the cradle only fixed pin terminals, not including other circuits. Detector, with sealed bottom side with overflow hole; terminal block design with waterproof jacket protection, ensure that there is water or water seepage of the spill, the detector can work properly. This probe can be carried out through the handheld electronic coding encoder and performance checks, has good resistance to dust and moisture.
This detector is a patented product, patent number ZL99311722.8.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 0.8mA
◎ Alarm current ≤ 2.0mA
◎ Alarm acknowledgement lamp: Red flashes when the inspection, the alert always lit
◎ Fixed temperature sensitivity level: fixed temperature sensitivity level 1: alarm setting temperature of 58 degrees centigrade; fixed temperature sensitivity level 2: alarm setting temperature 66 degrees centigrade; fixed temperature sensitivity level 3: alarm setting temperature 72 ° c.
◎ Using environment: temperature:-10 ℃ ~ + 50 ° c relative humidity ≤ 95%, no condensation
◎ Encoding: decimal electronic coding
◎ Dimensions: diameter: 100mm, high: 45mm (without base)
● JTY-GF-GST104-non-coding photoelectric smoke detector
With a new type of scattering technique and imports of optoelectronic devices and improves the reliability of the sensor, the stability and consistency, and a unique maze design, pest control, dust-proof, resistant to external light interference. Product novel structure, appearance, performance stable reliable, strong resistance to moisture, and has a good resistance to chemical corrosion. This detector alarm mode for the current type, with LD-8319 coding repeaters, LD-8320 active Terminal, you can access the company's production of various types of fire alarm controller, complete the detector signal processing.
The main technical indicators are as follows:
◎ Operating voltage: DC12V ~ DC28V
◎ Monitor current ≤ 60 μ A
◎ Alarm current: 10mA ~ 30mA
◎ Alarm acknowledgement, alarm lamp: Red often lit
◎ Using environment: temperature:-10 ℃ ~ + 50 ° c relative humidity ≤ 95%, no condensation
◎ Dimensions: diameter: 100mm, high: 42mm (without base)
● JTWB-ZCD-G1 (A) non-encoded electronic differential fixed temperature heat detector
JTWB-ZCD-G1 (A) non-encoded electronic differential fixed temperature heat detector is the use of temperature-sensitive components of sensitivity to detect the temperature, the built-in MCU, curing the high reliable fire judgment proceedings and with the special craft processing, stable and reliable, and has good resistance to chemical corrosion. This detector alarm mode for the current type, with LD-8319 coding repeaters, LD-8320 active Terminal used to access the company's production of various types of fire alarm controller, complete the detector signal processing.
The main technical indicators are as follows:
◎ Operating voltage: DC12V ~ DC28V
◎ Monitor current ≤ 60 μ A
◎ Alarm current: 10mA ~ 30mA
◎ Alarm acknowledgement, alarm lamp: Red often lit
◎ Using environment: temperature:-10 ℃ ~ + 50 ° c relative humidity ≤ 95%, no condensation
◎ Dimensions: diameter: 100mm, high: 45mm (without base)
● BT-KVA001 coding combustible roof home
BT-KVA001, BR-KVA001, BT-VA001, BR-VA001 coding combustible roof household use semiconductor gas sensor, stable, simple installation, this type of alarm using DC24V centralized power supply, and the various fire alarm controller coordinated application. For your home, hotel, apartment and other places where flammable gases exist for security monitoring. BT-KVA001, BR-KVA001 two products provide for the control of ventilation equipment for passive normally open contact and control of the gas pipelines of the solenoid valve is the contacts of the source. BT-VA001, BR-VA001 two products only provide control of the gas pipelines of the solenoid valve is the contacts of the source. BT-KVA001, BT-VA001 applies to detect natural gas, BR-KVA001, BR-VA001 applies to probe manufactured gas.
The main technical indicators are as follows:
◎ Detection components: the natural diffusion-type semiconductors
¡Ö power supply voltage: DC16V ~ DC30V
◎ Working current: monitoring current ≤ 80mA alarm current ≤ 100mA
◎ Alarm concentration: natural gas 5500ppm gas 1200ppm (H2)
◎ Warm-up time: 5 minutes
◎ Alarm: red LED flashes, accompanied by intermittent beeps
◎ Output contact:
Passive normally open contacts, capacity: 220V/3A,-only BT-KVA001, BR-KVA001
Active contacts, 0V ~ 12V one-way DC pulsed electromagnetic valve, drive capability: 2200 μ F/12 V capacitor discharge
◎ Using environment: temperature: 0 ° c ~ + 50 ° c humidity: ¡ü95%Without condensation
◎ Dimensions: diameter: 137mm, high: 46mm (without base)
● BT-KVA002 coding combustible wall-mounted home
Encoding-mounted domestic combustible gas alarm using semiconductor gas sensor, stable, simple installation. This type of alarm using DC24V centralized power supply, and the Hudson Bay Company production of fire alarm controller to promise of second bus way to connect, and other types of fire detectors together to form a bus system, fire alarm system. Suitable for families, hotels, apartments and other places where flammable gases exist for security monitoring. There are two sound and light alarm status: general alarm and emergency alarm.
The main technical indicators are as follows:
◎ Detection components: the natural diffusion-type semiconductors
¡Ö power supply voltage: DC16V ~ DC30V
◎ Working current: monitoring current 80mA, alarm current 100mA
◎ Alarm concentration: gas (BT-Y002 series)
Level alarm: 10000ppm 7000ppm secondary alarm:
◎ Warm-up time: 5 minutes
◎ Alarm: red LED flashes, accompanied by intermittent beeps. The general alarm, the red LED flashing frequency about 1Hz; emergency alert, red LED flashing frequency about 3Hz
◎ Output contact:
Passive normally open contacts, capacity: 220V/3A, only BT (R/Y)-KVA002 series
Active contacts, one-way 12V DC pulse electromagnetic valve, drive capability: 2200F/12V capacitor discharge
◎ Using environment: temperature: 0 ° c ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Encoding: decimal electronic coding
◎ Dimensions: 176mm×80mm×45mm
● JTY-HS-G2-smart style infrared beam smoke detector
JTY-HS-G2-smart style infrared beam smoke detector built-in single-chip computer, have strong analytical judgment, by operation of the internal curing detectors may be auto-completion on the outside environment parameters change compensation and fire, failure of judgment and improves overall system detection accuracy of real-time and fire. The probes for use with the controller, you can fire alarm control system comprising, in particular, apply to the high-rise buildings, heritage protection construction facilities, Hall Museum, the warehouse group and tunnel project, where there is smoke in front of the fire formation of sites may use this product.
The probes debugging method is simple, debugging, use the fire light and fault lamp combination confirmation (on or off), and the controller of the ' fixed debug ' feature, you can continuously monitor the receiver light intensity trends for detector is debug, fix a non-intelligent infrared beam detectors for high-altitude on debugging difficult problems and job security.
The main technical indicators are as follows:
◎ Working voltage: transmitter: DC24V receiver: bus 24V
◎ Sink: monitor current ≤ 1.8mA, alarm current ≤ 2.5mA
Transmitter: monitor current ≤ 2.5mA (connected with 24V power supply, no polarity)
◎ Alarm acknowledgement lamp: Red fault led: yellow
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Encoding: decimal electronic coding
◎ Dimensions: diameter: 100mm, high: 94mm (without base)
◎ Protected area:
This probe can be effective protection of a rectangular area, the largest protected area: 100m×14m

【 Weak current College 】 Gulf equipment technical characteristics and parameters (4)---Power By 【 China power house network 】

● JTW-LDB-100 type intelligent cable type heat detector
Smart cable type linear heat detector is JTW-LDB-100 type intelligent cable type linear heat detector coding interface, JTW-LDZ-100 type of Terminal and linear temperature sensor cable. This detector is the cable type heat detector, applicable to cable was in power and control cable fire early warning and control, power plants, steel mills, chemical plant, ancient buildings etc.
JTW-LDB-100 coding interface built-in single-chip computers that use electronic coding, line type heat detector access fire quotation system signal 2 bus. The first temperature sensor cable-end coding interface connection, end the connection with JTW-LDZ-100 type of Terminal. Each interface can connect two road temperature sensor cable, each occupying a code point.
Terminal for cable-linear heat detector private attachments, to the whole of the end of the temperature sensor cable without the need for access for fire alarm controller. Terminal with a temperature sensor cable fire test switch, easy to engineering simulation test pattern when debugging heat detector of alarm properties.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 3mA
◎ Alarm current: 5mA
◎ Wire: interface and fire alarm controller with nonpolarized second bus connection terminal directly with linear temperature sensor cable connection
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: coding interface: Terminal: 120mm×80mm×40mm 162mm×200mm×80mm
● JTG-ZW-G1 type intelligent UV flame detector
UV flame detector by detecting material combustion produces ultraviolet to detect fires, apply to the fire occurred, easy to produce the open fire place, on the fires have strong flame or not smoldering stage places can be used this detector. The detector used in conjunction with other detectors, the timely discovery of fire, reduce losses.
UV flame detector sensor by use of imported components from UV-tube, with quick, reliable and resistant to dust, humidity and corrosive gases, etc.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 2mA
◎ Alarm current: 10mA
◎ Wire: polarity signal 2 bus
◎ The detection angle ≤ 800
◎ Protection area: S = (h × t g α) 2 π (h: height from the ground, the detector α = 400)
◎ Alarm acknowledgement lamp: Red flashes when the inspection, the alert always lit
◎ Using environment: temperature:-20 ℃ ~ + 50 ° c relative humidity ≤ 95%, no condensation
◎ Dimensions: diameter: 100mm, high: 41mm (without base)
● JTF-GOM-GST601 type intelligent gas temperature composite probes
Compound detection technology is the internationally popular new multi-function high reliability of fire detection technology. JTF-GOM-GST601-flue gas temperature composite detector is my latest launch of a new detector, smoke sensors and semiconductor temperature sensors from process structure and circuit structure comprise of multiple complex detectors. It not only has intelligent photoelectric smoke detector performance, but also have fixed temperature, differential fixed temperature heat detector performance. It is precisely because of the smoke and heat of composite technology, makes this complex probes has overcome the normal forward scattering type photoelectric smoke detector smoke particles are not sensitive characteristics of smoke, to national standards test fire SH3 (polyurethane plastic fire) and SH4 (heptane fire) detection and alarm. At the same time that composite detector could also have significant alcohol burning temperature of fire detection and alarm, expanding the application of photoelectric smoke detector.
This detector is the promise of signal b bus system, you can access the Hudson Bay Company production of various types of fire alarm controller alarm bus. But these detectors with the Hudson Bay Company production of other probes are fully compatible, can be mixed on the same bus.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 0.8mA
◎ Alarm current ≤ 2mA
◎ Alarm acknowledgement lamp: Red flashes when the inspection, the alert always bright, failure is off
◎ Fixed temperature alarm temperature: 90 ℃ (available through electronic encoder highest setting to 78 ° c)
◎ Using environment: temperature:-10 ℃ ~ + 50 ° c relative humidity ≤ 95%, no condensation
◎ Encoding: decimal electronic coding
◎ Dimensions: diameter: 100mm, high: 42mm (without base)
● JTGB-ZM-GST501/I/I-type flameproof UV flame detector
JTGB-ZM-GST501/I flameproof UV flame detector by detecting material combustion produces ultraviolet to detect fires, apply to the fire occurred, easy to produce the open fire place, and the other detectors, more timely detection of fire and minimize losses. JTGB-ZM-GST501/I flameproof UV flame detector for encoding flameproof products, explosion-proof performance conforms to GB3836.1-83 the explosive environment with explosion-proof electrical equipment-General requirements and GB3836.2-83 the explosive environment with explosion-proof electrical equipment flameproof electrical equipment "d" standard requirements while meeting GB12791-91 points-UV flame detector technical requirements and test methods "in the various requirements.
This detector explosion-proof type is suitable for explosion-proof ExdIICT6 zone 1 and zone 2 places various explosion-proof, according to the scene environment. Sensor made of imported products with high sensitivity, long life, reliable, etc. The detector used electronic encoding, available through our electronic encoder for encoding, encoding in the range of 1-242Room.
The main technical parameters are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 2mA, alarm current: 10mA
◎ Wire:-polarity and two-wire
◎ The detection angle ≤ 80
◎ Protection area: S (h * tg) 2 (h: detector is apart from the ground level, 40)
◎ Explosion-proof mark: ExdIICT6
◎ Using environment: temperature:-20 ℃ ~ + 40 ° c relative humidity ≤ 95%, no condensation
(3) alarm button
● J-SAP-8401-manual fire alarm button
J-SAP-8401 type intelligent coding manual alarm button design using innovative shape structure, recoverable characteristics, very suitable for application. Manual alarm button installed in public places, when artificial confirmed fire press the button on the plexiglass plate to the controller issued a fire alarm signal controller receives the alarm signal, displays the alarm button number or location and a beep sound. Manual alarm button directly on the receiving controller bus.
J-SAP-8401 type intelligent coding manual alarm button has the following characteristics:
(1) Manual alarm button uses the promise of signal b bus, its address coding by handheld electronic encoder in 1 ~ 242 between arbitrary.
(2) Manual alarm button uses the pluggable type structure design, button presses on the plexiglass film press reset after special tools available.
(3) press the alarm button glass, can be used by buttons provide rated DC60V/100mA passive output contact signal, can directly control the other external devices.
Manual alarm button uses the entire seal design, seams designed the gasket, with waterproof function. In addition, the Board adopts the waterproofing process, the surface of a waterproof plastic to protect the hand button on the inside of the moisture-proof performance.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 0.8mA
◎ Action current ≤ 2mA
◎ Wire: and controller-polarity signal second bus connection
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: 90mm×122mm×48.5mm
● J-SAP-8402-manual fire alarm button (with the phone jack)
J-SAP-8402 intelligent coding manual alarm button (with the phone jack) design using innovative shape structure, recoverable characteristics, very suitable for application.
This manual alarm button electronic encoding, once confirmation beep, immediately signals to the controller, warning prompt. Manual alarm button located on the phone jack, when handheld phone after inserting the call should be made with the control center.
Manual alarm button uses the entire seal design, seams designed the gasket, with waterproof function. In addition, the Board adopts the waterproofing process, the surface of a waterproof plastic to protect the hand button on the inside of the moisture-proof performance.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 0.8mA
◎ Action current ≤ 2mA
◎ Wire: and controller uses the promise of signal b bus connection and bus system coding telephone jack connection using four-wire, and multiple line telephone TS-Z02 hosts connections using phone II bus
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: 90mm×122mm×48.5mm
● LD-8403 type intelligent encoding fire hydrant alarm button
LD-8403 type intelligent fire hydrant alarm button for encoding type, you can directly access controller bus, representing an address encoding.
Button face a plexiglass plate, when enabled, fire hydrant, can be directly pressed glass, where the red light on the button, indicating that the control room to the fire alarm information was issued, the controller confirmed the fire pump has started running, to issue a fire hydrant alarm button command signal light pump operation indicator. Fire hydrant alarm button of pump operation led to the controller, also attracted by the pump control box direct pump running switch signal lights, according to the specific design requirements.
Alarm button uses the pluggable type structure design, button presses on the plexiglass film press reset after special tools available.
Alarm button electronic coding that uses the entire seal design, seams designed the gasket, with waterproof function. In addition, the Board adopts the waterproofing process, the surface of a waterproof glue, guarantee the performance of moisture inside the button.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Monitor current ≤ 0.8mA
◎ Alarm current ≤ 2mA
◎ Wire: fire hydrant alarm button signal with the controller, the second bus connections if you need to achieve direct cycle pump control and pump control box action lit pump running lights, fire hydrant and alarm buttons and pump control box are three bus connection
◎ Action led:
Red: the alarm button is pressed the lights green: the fire pump starts this lights
◎ Actions-contact: passive normally open contacts, with a capacity of DC60V, 0.1A, can be used to direct cycle pump control
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: 90mm×122mm×48.5mm

【 Weak current College 】 Gulf equipment technical characteristics and parameters (6)

● LD-8313-bus isolator
When the bus fails, the failure of bus parts and isolate an entire system to ensure that the system of the normal work of the other part, to determine the failure of bus parts. When the failed part of the bus after repair, bus isolators can resume work, will be separated out part into the system, maintenance is simple. LD-8313-bus isolator based on actual number set by the next detector with load capacity of their own, bus isolator with 170mA and 270mA two current, direct-line on the bus, using flexible.
The main technical indicators are as follows:
◎ Operating voltage: 24V bus
◎ Action current: 170mA (maximum access 50 coding equipment); 270mA (maximum access 100 encoding device)
◎ Quarantine actions confirm lamp: Red
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: 120mm×80mm×39mm
● LD-8319 coding repeaters
LD-8319 coding Repeater is a code module that is used to connect non-encoding detector, occupies only one code point, when the access code relays output circuit of any field device alarm, the alarm relays information to the alarm controller, controller generate alarm signals and display the address of a Repeater. Repeaters can be with the company's production of JTFB-GOF-GST601 noncoding flue gas temperature composite detector, JTY-GF-GST104 noncoding photoelectric smoke detector and JTWB-ZCD-G1 (A) non-encoded electronic differential fixed temperature heat detector, etc. Repeater with output circuit breaker test function, output circuit terminal connection active Terminal LD-8320, when output circuit breaker, coding repeaters will fault information to alert the controller, the controller displays the encoding of the repeaters; when the output circuit with on-site equipment is removed, the encoding will report a failure but a Repeater does not affect the other field devices work correctly. A Repeater can bring many non-encoding detector, you can also mix multiple detectors, but mix the quantity not exceeding 15 only.
Repeaters using four-wire system, the controller needs two alarm signal bus (polarity) and two dc24v (polarity), encoding the relays output polarity with probes used a two-wire connection.
Repeater address coding using electronic encoding encoding range 1 ~ 240 set between, the Hudson Bay Company production of BMQ-1 type electronic encoder for scene changes.
LD-8319 coding repeaters and non-encoding detector series connection, the detector base should add diode 1N5819, and output circuit terminal must add LD-8320 active Terminal. A source terminal can be used when the detector base, that is, the source terminal can be installed non-encoding detector. When a source Terminal is not used as a detector base, should be loaded on the cover. The engineering equipment configuration in order to reduce costs, using Active terminal when the detector base used in active Terminal directly installed non-encoding detector installation mode that reduces the number of the detector base.
The main technical indicators are as follows:
◎ Operating voltage: 24V voltage bus: bus, power supply voltage: DC24V
◎ Monitor current ≤ 0.5mA
◎ Alarm current: 5mA
◎ Wire: and controller uses the promise of signal b bus connection and power supply cord with promise of two-wire connection, and non-encoding detector using polarized two-wire connection
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: 120mm×80mm×40mm
● LD-8320 active Terminal
In non-coding automatic fire alarm system, the traditional way is through the circuit terminal connection a resistance to maintain the system's normal work, once the entire matching undue alarm system is not functioning, or even produce a false alarm. LD-8320 active Terminal and supporting the use of LD-8319 coding repeaters to replace terminal resistor, when the alarm system output circuit with on-site equipment is removed, the Repeater to LD-8319 coding controllers report fails, but does not affect the other field devices work correctly. Effectively solved the above problem, greatly improving non-coded alarm system reliability.
The main technical indicators are as follows:
◎ Working voltage: DC15V ~ DC28V
◎ Nominal voltage: DC24V
◎ Equivalent resistance: 4.7 k Ω
◎ Using environment: temperature:-10 ℃ ~ + 50¡æ £ ¬2 relative humidity: 95%, no condensation
◎ Dimensions: diameter: 103mm, high: 38mm
(5) fire show up
● ZF-101 fire show up
ZF-101 fire show up is a single-chip design and development can be installed on the floor or independent zones digital fire alarm display device. By bus and fire alarm controller, handling and display controller transfer over the data. When building a fire, the fire control centre of the fire alarm controller generate alarm, alarm signal is transmitted to the fire area fire shows up. Displays the disc will result in a fire alarm detectors numbers and related information is displayed, and produces sound and light alarm signal, to notify the fire zone. Fire show up with 8-bit alarming information display window, you can set alarm detector code number shown to meet a wide range of alarm display requirements. When using a single alarm controller while monitoring several floors or fire partitions, each partition set floors or fire fire shows up in place of the area alarm controller.
The main technical indicators are as follows:
◎ Display range: display range: 00000000 ~ 99999999 in arbitraryAlarm code points
◎ Shows capacity: up to 50 of alarm information
◎ Wire: and fire alarm controller using a polarity second bus connections to two DC24V power supply cable (no polarity)
◎ Using environment: temperature: 0 ° c ~ + 40 ° c humidity: ≤ 95%, no condensation
◎ Power: DC16.8V ~ DC26.4V power centralized power supply
¡Ò saving state power consumption ≤ 1W, maximum power consumption ≤ 2W
◎ Dimensions: 230mm×142mm×70.5mm
● ZF-500 type Chinese character LCD display tray fire
ZF-500 fire displays disc is single-chip design and development of kanji-fire show up to show the fire detectors part number and character information and at the same time issued a sound and light alarm signal, the display is clear and intuitive, easy to confirm. By bus and fire alarm controller, handling and display controller transfer over the data. When an alarm while monitoring several floors or fire partitions, each partition set floors or fire fire shows up in place of the area alarm controller.
The main technical indicators are as follows:
◎ Display range: each screen displays 4 alarm information, subsequent alarm information can cycle through the
◎ Shows capacity: up to 126 alarm information
◎ Wire: and fire alarm controller using a polarity second bus connections to two DC24V power supply cable (no polarity)
◎ Using environment: temperature: 0 ° c ~ + 40 ° c humidity: ≤ 95%, no condensation
◎ Power: DC16.8V ~ DC26.4V power centralized power supply
¡Ò saving state power consumption ≤ 2W, 3W max power consumption ≤
◎ Dimensions: 230mm×142mm×70.5mm
● ZF-GST8903-graphical fire show up
Fire show up is ZF-GST8903 a floor of fire alarm display device. When the fire control centre of the host receives a building after fire, alarm, the alarm signal is transmitted to the fire area fire shows up, fire show disk will produce an alert detector location displayed and a beep sound to notify the fire zone.
This shows up for non-standard products, according to the project actual requirements and under fire shows up the displayed alarm zone layout customization.
The main technical indicators are as follows:
◎ Display range: 1 ~ 64 encoding.
◎ Shows capacity: up to 64 alarm message.
◎ Wire: and fire alarm controller using a polarity second bus connections to two DC24V power supply cable (no polarity).
◎ Using environment: temperature: 0 ° c ~ + 40 ° c humidity: ¡ü95% (40 ° c, 2 ° c)
¡Ö power supply: DC24V power centralized power supply, power dissipation ≤ 1W
◎ Dimensions: 345mm×235mm×70mm
(6) power

【 Weak current College 】 Gulf equipment technical characteristics and parameters (7)---Power By 【 China power house network 】

● GST-DY-100-type power supply box
GST-DY-100-power box is a DC24V bulk power output equipment, fire alarm control system that can be used as a coordinated control system of power, as linkage control module and charged device power supply. Power supply unit to the AC 220V as main power, while the built-in DC24V/7Ah sealed lead batteries as backup power supply, switching power supply voltage circuits and maintain electrical floating charge, with output over-current protection, and standby power switch and the perfect preparation of electric power by automatically charging and over-discharge protection. At the same time, the intelligent power supply unit can be kept on the main, electrical and power output status monitoring, master, power failure, fault output, but also has an output voltage, output current display feature to visually observe power box working state.
The main technical indicators are as follows:
◎ Rated output capacity: DC24V, 4A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V7Ah sealed lead batteries be electro
◎ Dimensions: 310mm×400mm×115mm
● GST-DY-200-smart power box
GST-DY-200-smart power box is a DC24V bulk power output equipment, fire alarm control system that can be used as a coordinated control system of power, as linkage control module and charged device power supply. Power supply unit to the AC 220V as main power, while the built-in DC24V/24Ah sealed lead batteries as backup power supply, switching power supply voltage circuits and maintain electrical floating charge, with output over-current protection, and standby power switch and perfect automatic charging and prepared by electric over discharge protection. At the same time, the intelligent power supply unit can be kept on the main, electrical and power output status monitoring. When the input voltage is greater than or less than 260V 160V times main power failure; when preparing electrical battery damaged or undervoltage electrical fault when filing; when the output voltage is greater than the 28V or output current greater than 8A times output fault. The power box also has a main electrical voltage, output voltage, output current display feature to visually observe power box working state.
The main technical indicators are as follows:
◎ Rated output capacity: DC24V, 6A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V24Ah sealed lead batteries be electro
◎ Dimensions: 500mm×440mm×170mm
● GST-LD-D02-intelligent power-up
GST-LD-D02-intelligent power disk circuit by AC-DC conversion, standby power float control circuit and power control circuit is composed of three parts, specifically for the entire fire control system power supply.
GST-LD-D02-intelligent power up to AC 220V as main power, while the external battery DC24V/24Ah as preparation. Standby power normally accept main power charging, when the site AC power failure, the standby power supply automatically import external supply. Intelligent power supply tray can be on the main electrical faults and alarm output failure, when the input voltage is greater than or less than 160V 260V, reported main power failure; when the output voltage is greater than the 28V or output current greater than 8A, report output. At the same time it also has a battery overcharge and over discharge protection. Power monitor parts for indicating that what is currently being used by all the way to the power supply, AC input voltage and output voltage values, as well as various fault and status display. In a tank fire alarm controller (linkage) as the control core systems, the power-up as a coordinated control system power.
The main technical indicators are as follows:
◎ Output capacity: DC24V, 6A
◎ Using environment: temperature: 0 ° c ~ + 40 ° c humidity: ≤ 95%, no condensation
¡Ò main power for power: AC 220V, built-in DC24V24Ah sealed lead batteries be electro
(VII) fire broadcasting system
• Bus system fire emergency broadcasting system
Fire emergency broadcasting system belongs to the fire alarm control system supporting the use of equipment, through this system you can achieve communication building fire, command related layer evacuation capabilities throughout the fire control system plays an extremely important role.
Bus system fire emergency broadcasting system by the Hudson Bay Company production of fire control centre of the broadcast equipment, with the use of the bus system for fire alarm controller, LD-8305 fire radio module and playback devices. The fire control centre of the broadcast equipment including radio power amplifier, CD recording disc GST-CD type and GST-KZ-deck recording disk, you can set in the Cabinet. Live broadcast using roof and wall-mounted speakers. Use fire radio switch module LD-8305, scene playback device on the bus access controllers, sent by the radio device to the audio broadcast signals, but also through LD-8305 module passive normally open contact (fire broadcasting) and normally closed contact (normal broadcast) added to the playback device, a radio range may be a LD-8305 module to control. The module is equipped with auto-answer feature, when the module actions will generate an alarm signal is fed into the controller generates alerts indicating that normal broadcast and fire broadcasting switch successfully.
Fire emergency broadcasting system playback device can be private or share with the public broadcasting system; when combined with the public broadcasting system, the fire control centre must be fire evacuation level for the speakers and to public broadcasting amplifiers force fire emergency broadcast status while in the fire control centre monitors fire emergency radio amplifiers working state.
Fire broadcasting equipment together with other devices can also be individually assembled in fire control cabinets, equipment power unity by fire control system of power supply.
«More wire fire emergency broadcasting system
Fire emergency broadcasting system belongs to the fire alarm control systemCommission in supporting the use of equipment, through this system you can achieve communication building fire, command related layer evacuation capabilities throughout the fire control system plays an extremely important role.
More wire fire emergency broadcasting system by the Hudson Bay Company production of fire control centre of the broadcast equipment, fire alarm controller, LD-GBFP-100 multiple wire broadcast distribution and live broadcast speaker. The fire control centre of the broadcast equipment including radio power amplifier, CD recording disc GST-CD type and GST-KZ-deck recording disk, you can set in the Cabinet. Live broadcast using roof and wall-mounted speakers. More wire fire broadcasting system's output of broadcasting channels by broadcasting Division to design, each broadcasting a second root partition independent broadcasting channels and live playback devices are connected, the broadcast Division switching control by the fire control centre dedicated multi wire fire broadcast distribution (LD-GBFP-100 type). With this switch, you can complete manually on the broadcasting Division for normal or fire radio switch.
Fire emergency broadcasting system playback device can be private or share with the public broadcasting system; when combined with the public broadcasting system, the fire control centre must be fire evacuation level for the speakers and to public broadcasting amplifiers force fire emergency broadcast status while in the fire control centre monitors fire emergency radio amplifiers working state.
Fire broadcasting equipment together with other devices can also be individually assembled in fire control cabinets, equipment power unity by fire control system of power supply.
(8) fire telephone system
• Bus system fire telephone system
Fire telephone system is a dedicated communication systems for fire, this system can quickly achieve the fire of artificial confirmation, and may hold the fire site and carry out other necessary communications, to direct the fire suppression and recovery work. Telephone system host installation in the control center, the use of embedded installed in the alarm control stringed Cabinet.
The complete bus system fire telephone system consists of a set of fire control centre GST-TS-Z01A-bus system fire phone host and fire alarm controller, on-site LD-8304 module and LD-8312-phone jack and TS-100A fire telephone extension. The system has a design flexible, easy to use and so on.
GST-TS-Z01A-host with recording function, using digital voice memory chips up to record a 30-minute call to fire accident investigation.
LD-8304 module is a direct encoding module, and the fire alarm controller bus connection and need to be connected to the power bus DC24V. To achieve the delivery of telephone voice signal, you need to access the fire phone bus. LD-8304-module has a telephone jack, you can direct telephone extension for bus system.
LD-8312-phone jack and J-SAP-8402 type intelligent coding manual alarm button telephone jack parts are non-coding, direct bus connections with fire telephone constitute non-coded telephone jack, if-module connection with LD-8304, may constitute a coding style phone jack.
Fire telephone system telephone extension can call host without dialing, ringing when the host is the call until the host off-hook or extension to cancel the call; at the same time, the host may call any fixed extension (by fire alarm controller), the extension is ringing when the call until the extension off-hook or cancel the call of fire alarm controller; extension between host allows also can call; telephone jacks can be expanded. Pick a fixed telephone extension or extension plugged LD-8312-Jack and J-SAP-8402-Manual alarm button (including telephone socket) phone jacks are considered extensions caller host. The host calls fixed extension can fire alarm controller starts the appropriate LD-8304 modules allow extension ring. Host and extension, extensions and extension of the call, the call is completed by the host's own control without the need for other controllers.
«More wire fire telephone system
Fire telephone system is a dedicated communication systems for fire, this system can quickly achieve the fire of artificial confirmation, and may hold the fire site and carry out other necessary communications, to direct the fire suppression and recovery work. Telephone system host installation in the control center, the use of embedded installed in the alarm control stringed Cabinet.
Complete wire fire telephone system consists of a set of fire control centre TS-Z02A-multi wire fire phone host and fire alarm controller, LD-8312-phone jack and TS-200A stationary fire telephone extension and TS-200B hand-held fire telephone extension. The system has a design flexible, easy to use and so on.
More wire fire telephone system control core for multiple-line TS-Z02A-fire phone hosts. According to the actual demand, fire phone hosts capacity is not the same. Fire in a multiple-line telephone system, each Department TS-200A type fixed fire Ext. occupy all the way to fire phone hosts, separate two-wire and fire phone hosts connections. LD-8312-fire phone jack can be connected in parallel, parallel, or as many as you like, parallel telephone jack fire phone only occupies one of the host.
Fire telephone system telephone extension can call host without dialing, ringing when the host is the call until the host off-hook or extension to cancel the call; at the same time, the host may call any fixed extension (by fire alarm controller), the extension is ringing when the call until the extension off-hook or cancel the call of fire alarm controller; extension between host allows also can call; telephone jacks can be expanded. Pick a fixed telephone extension or extension plugged LD-8312-type jacks are considered extensions caller host.
More wire fire telephone system host and extension, extensions and extension of the call, the call is completed by the host's own control without the need for other controllers.
(9) gas extinguishing control
● LD-QKP06 type gas fire extinguishing Control Panel
LD-QKP06 gas extinguishing Control Panel is a project of the actual requirements of gas fire extinguishing control interface device, used to drive a gas fire extinguishing system of executive bodies, so as to constitute a complete gas fire control system. This control panel you can directly access fire alarm controller bus, and the company's production of linkage controller or fire alarm controller together with the completion of the gas cylinders, automatic control to control fire extinguishing gas spray.
The control panel can be independent of the linkage controller or fire alarm controller on the connected external device control. The fire alarm controller when an exception occurs, through on-site emergency start/stop-button or the gas fire extinguishing Control Panel on start and stop moving directly to the key realization on gas fire extinguishing equipment of control actions.
LD-QKP06 gas extinguishing Control Panel can be attached spraying led, emergency boot/shutdown action buttons, independent control linkage more wire devices. Extinguishing control panel with external line short circuit and open circuit check alarm function, and have an alternate number line output to ensure that the main gas fire extinguishing equipment maintenance or failure to use an alternate control output reached gas extinguishing purposes.
The main technical indicators are as follows:
◎ Capacity: maximum capacity of control 6 gas fire district (six control unit)
◎ 0s---45s adjustable delay time:
◎ Wire:
A. controller uses two bus connection (polarity signal second bus)
B. steel solenoid valve, pressure switch and spray led multiple wire 2-wire connection
C. emergency boot/shutdown dynamic buttons using multiple wire 3-wire connection
D. xiangqi with sound and light; adopts 2-wire connection
E. exterior with nonpolarized DC24V power
◎ Output: the output tray has 6 points, each group has two DC24V output (main and standby fire)
◎ Using environment: temperature: 0 ° c ~ + 40 ° c relative humidity ≤ 95%, no condensation
◎ Power: DC24V6V (for), you can connect with intelligent power-up or intelligent power box
◎ Monitor power consumption ≤ 10W
◎ Dimensions: 460mm270mm105mm

【 Weak current College 】 fire engineering installation technology gives the low-down-Power By 【 China power house network 】

Technology gives the low-down the records table C2-1 number, project name gives the low-down on the construction unit sub-item project name to give the low-down the feeds low-down: fire engineering installation of universal scope 1 this craft standard applicable to industrial and civil building fire equipment installation engineering. 2 construction preparation 2.1 construction design of fire design drawings, you must have the appropriate design qualification certificate of design unit design. The construction drawings and information will be sent to public security and fire fighting supervisory body audit, approved by the audit. 2.2 engaged in fire-fighting facilities construction units, should have the appropriate qualification, their qualification by the public security fire agencies with the relevant departments to jointly approved and issued a fire protection engineering construction Enterprise qualification certificate. 2.3 construction field of fire safety by the construction of the units responsible. Pre-construction and construction units must be reported to the police and fire agencies, the public security agency issuance of permits for the construction site before construction of fire safety. 2.4 construction units must be in accordance with the approved design drawings, not tampered with. 2.5 installed fire products, mechanical and electrical products and materials to meet the following criteria: version 2.5.1 of the city of fire Eagle, should have a production license issued by the State. Foreign or foreign to local sales of fire protection products, must have a validity period of the sales control certificate in Beijing. Selection to the Tribunal that the products listed in the certificate is in line with the desired product. 2.5.2 fixed fire extinguishing systems and fire-resistant components and refractory coatings should have effective national quality inspection center of inspection reports. 2.5.3 fire electronic products to have a valid national fire electronic products quality inspection report. 2.5.4 selection of high-voltage Cabinet and cage screen must follow the machinery Department and Ministry-approved designated plant production products; import of electrical products must have a verification certificate, they have a certificate that the device has a nameplate. 2.5.5 construction electrical construction-to-use products such as wire and cable, switches, etc., should be consistent with the safety of China electrical Certification Committee, its certification requirements for electrical product safety certification Committee on should a security certification requirements, its electrical product safety certification mark shall carry, and has a certificate that has a nameplate on your device. 2.5.6 selection of various types of steel, shall meet the relevant standards and design requirements, manufacturers to produce material certificates and certificate. 2.5.7 various main accessories, pipes, welding rods, paint, etc., should have the certificate of quality. Selection of the machines must 2.6 meets the technical requirements of the construction site, the use of mandatory testing and non-mandatory testing of the measuring instrument shall be adjusted according to the national measurement Act at the request of management. 2.7 construction management personnel, such as construction, quality inspector, materials such as operationalizing certificates. Special types, such as electricians, welders, etc. should also be done certificates. 2.8 construction should accept firefighting supervisory authority and quality supervision authorities and other superior unit check instructions to ensure the quality of the project. 2.9 construction should be strictly in accordance with the approved design drawings, conscientiously implement the relevant fire design specifications, construction approval standard, construction technology and related Atlas, manufacturer information, and other construction requirements. 2.10 construction records and data collection, arrangement and fill out the form, you should do and engineering, project completion and acceptance of delivery time should be directed to the construction of a complete set of project information, and in accordance with the contract requirements, draw the as-built drawings. 2.11 fire engineering installation and debugging all completed, construction unit should be from a qualified surveyor, then please construction units (supervision), design units for acceptance, acceptance certificate of completion. 2.12 building units or construction unit should be entrusted to qualified building fire facilities detection unit tests and submit the technical test report. 2.13 construction unit should fire supervision agencies submit an application to and acceptance of the relevant information, the public security fire agencies, the fire engineering acceptance inspection issued to fire facilities only allow acceptance certificate, otherwise, the unqualified acceptance or non-acceptance shall be permitted to use. Person who accept to give the low-down the person gives the low-down

【 Weak current College 】 mechanical smoke extraction facilities in fire acceptance of problem---Power By 【 China power house network 】

As China's economic construction fast development, high-rise buildings, underground works in some big cities like mushrooms and prospered. Modern high-rise buildings often makes extensive use of plastic decoration, the chemical fiber rug and furniture with foam padding. In the event of fire, Interior fuel and construction materials, decoration materials, flammable furniture, clothing and other combustible materials, such as in the combustion process produces a large amount of toxic smoke and heat, smoke does great harm to the human body, suffocating, poisoning still to death. According to a recent fire deaths statistics indicate that the fire deaths due to smoke smoked death accounted for about 50% to 70%, and burned to death in the majority of first asphyxia collapsed after burned to death. Construction of smoke control facilities in the fire for the safe evacuation and fire fighting created favorable conditions for, and control the fire from spreading. Therefore, the setting is very important for smoke control facilities. In order to design and install smoke control facilities, play, make sure that the State and people's lives and property. Author mechanical smoke extraction facilities in fire acceptance of several opinions on. For reference purposes only.
First, review the settings part of smoke control facility complies with the specifications
(A) mechanical smoke settings parts. Under the high civil building design fire protection standard section 8.3.1 bis provides for the following positions should set the mechanical pressurization smoke control facilities:
1, do not have conditions of natural smoke exhaust smoke fire stairs, elevator room or room before use;
2. adopt the measures of natural smoke exhaust smoke staircases, its does not have natural smoke conditions before the Chamber;
3, closed asylum bed (room).
(B) mechanical smoke extraction settings parts.
1, according to the design of tall building fire code provisions of section 8.4.1: a class of high-rise buildings and building height exceeding 32m II the following parts of high-rise building, you should set the mechanical smoke extraction facilities:
(1) no direct natural ventilation, and longer than the inner passages or 20m although direct natural ventilation, but longer than the inner passages 60m;
(2) more than 100m2, and often someone stay or fuel more ground and set the windowless room or room with a fixed window;
(3) does not have natural smoke conditions or headroom above the Atrium 12m;
(4) in addition to using window wells, and other fenestration for natural smoke rooms, each room has a total area of more than one room area 200m2 or exceed 50m2, and often someone stay or so of more basement.
2, according to the civil air defense air engineering design fire protection standard law, the following part shall be located mechanical smoke extraction facilities:
(1) building area greater than 50m2, and often someone stay or so in more rooms, lobby and c. "workshop;
(2) total length exceeds 20m evacuation aisle;
(3) film and stage.
3, according to the garage, garage, yard design fire protection standard stipulates: over 2000m2 of underground garage should set mechanical smoke extraction system.
(3) dance installstion smoke, smoke extraction facilities set parts. According to the architectural design fire protection standard article 5.1.1 and tall buildings design fire protection standard of 4.1.5A bis, these parts should be fortified to smoke, smoke extraction facilities:
(1) dance installstion located in multi-story building and including four stories above a windowless room or room-room window, underground rooms, as well as more than 20m and no natural smoke evacuation aisle or directly on the natural ventilation, but longer than 40m evacuation in aisle;
(2) dance installstion located in high-rise building of the first floor, second floor, the third layer, the area over the windowless room 100m2 or supposes a fixed window of the room and over 20m and no natural smoke evacuation aisle or directly on the natural ventilation, but longer than 60m evacuation in aisle;
(3) dance installstion located in high-rise buildings up to and including four stories above a windowless room or room-room window, underground rooms, open the window size is smaller than the room area of more than 2%, and with no natural 20m smoke evacuation aisle or directly on the natural ventilation, but longer than 60m evacuation in the aisle.
2. check the system settings for conformance to specifications
(A) of the pressurization system for smoke: 1, more than 32 storey high-rise building is segmentation settings ventilation system; 2, smoke staircases and combined with former rooms are separately set the air supply system, when you must share a system, whether on the way to the front room with air duct pressure difference set on automatic control device; 3, refuge layer is a separate ventilation system; 4, scissors staircase is set independently for the air duct, with the wind as second staircase; 5 ways to determine if the pressure to meet the requirements.
(B) mechanical smoke extraction system: 1, ground and underground is common exhaust system; and 2 whether the individual settings of the Atrium, the exhaust system; 3, mechanical ventilation and smoke extraction system, air-conditioning system and, when combined, whether or not to take the reliable security measures; 4, aisle and room exhaust system is set separately; 5, each exhaust system with exhaust port number is more than 30; 6, basement room is also equipped with air intake system (air mechanical air or natural) into the air should be not less than 50% of the exhaust gas volume and reasonable airflow should be organized so that the smooth discharge of flue gas.
3. view the fan selection is justified.
(A) the smoke pressurization system air supply available look-up or calculation method to determine when the calculated value and the tall buildings design fire protection standard of table 1, table 8.3.2-8.3.2-2, table 3, table 8.3.2-8.3.2-4 inconsistent, whichever the greater value. Then select according to the air or in axial flow fan and low-pressure centrifugal fan.
(B) mechanical smoke extraction system exhaust fan choice whether: 1, when the burden of an exhaust fan for smoke partition, you should press the smoke partition area per square meter than 60m2/h; 2.When the burden of two or more smoke partition should be maximum preventing smoke partition area per square meter than 120m2/h; 3, the volume is less than 17000m3 Atrium, the exhaust gas volume by volume of 6/h ventilation calculation; the Atrium volume greater than 17000m3, its exhaust volume according to the volume of the 4th/h ventilation; but most small amount should not be less than smoke 102000m3/h. According to the size of the calculated value, you can select the centrifugal fans, axial fans, smoke, or you can choose to bring the power of a dedicated exhaust fan.
4. view the air or exhaust port settings location is appropriate
(A) positive-pressure supply outlet: 1, smoke stairway supply outlet is every two to three-layer settings, former room air is layer sets; 2, each supply outlet area size meets the design requirements.
(B) mechanical exhaust outlet: 1, each smoke partition is at least one smoke exhaust vents; 2, smoke partition from the exhaust port within the furthest point of the horizontal distance is more than 30m; 3, exhaust port is located in the ceiling or wall near the ceiling; 4, each exhaust port area size meets the design requirements.
5. test smoke system feature is complete
(A) positive pressure ventilation system: 1, fan distribution meets the requirements, in the last level distribution box office is set up automatic switching devices; 2, fans in fire control room is one of the Start button, in the event of fire, pressure blowers can be started immediately; 3, supply outlet (except for opening pressure air) is set to manually, and automatic opening device, if there are any smoke detector chain of automatic opening device or fire control centre distance control of opening device; 4, smoke staircases, front room, shared room, fire before the elevator room, closed asylum bed (room) residual pressure value is reached the high civil building design fire protection standard article 8.3.7 bis regulations.
(B) mechanical smoke extraction system: 1, fan distribution meets the requirements, in the last level distribution box office is set up automatic switching devices; 2 whether the exhaust outlet, closed weekdays is set manually and automatic opening device, if there are any smoke detector chain of automatic opening device or fire control centre distance control of opening device; 3, in fire control room if there is a fan of one-to-one manual operation button;; 4, when any of the exhaust vents or exhaust valve is opened, the exhaust fan is able to boot; 5, in the exhaust pipes and exhaust fan room entrance is there when the gas temperature of more than 280 ° c, could itself off smoke fire dampers; 6, same smoke partition settings of exhaust port, can be opened simultaneously all exhaust port.
VI. other issues
1. smoke fan downlead of distribution lines with fire performance requirements;
2. air wind speed is not greater than 7m/s, the exhaust vents should not be greater than the wind speed 10m/s;
3, galvanized metal duct, the wind speed should not exceed 20m/s when using concrete block or asbestos Board other non-metallic materials, duct, the wind speed should not exceed 15m/s.
4, headroom than indoor Atrium 12m, vertical exhaust port is 2 to 3 layers of a smoke exhaust vents or segmentation settings;
5¡ ¢ exhaust fan is set in the exhaust system up to the upper part of the exhaust gas outlet does not use the upper to the lower deck of flue gas duct of the arrangement;
6. pressure blower is set free from building fire blower room, it is best to set on the bottom of the system, and the pressurization system of pipes should not be installed for fire dampers.

【 Weak current College 】 smoke control in high-rise building facilities design and construction analysis of and solutions to common problems

Summary: on the tall buildings of smoke control system design and construction issues analysis and countermeasure
Keywords: tall buildings, natural smoke exhaust system
Usually tall buildings of smoke control facilities include smoke staircase and vestibule, fire the elevator room, combined with front room, enclosed stairway, refuge layer (room), and other places set of smoke, the basement, in the aisle, Atrium, no form or with fixed window room and set the smoke extraction facilities, smoke partition between the vertical wall of smoke. Smoke management facilities is tall buildings to protect life and property safety indispensable fire safety facilities, but as part of the design and construction personnel on smoke control facilities of structure, function, performance, lack of awareness, understanding of national regulatory standards, not often leads to the design, construction, there are some problems, mainly in the following areas:
A, natural smoke extraction facilities up to exhaust purpose
Natural gas is an economical, simple and easy operation, maintenance, management convenience of exhaust smoke, but as part of the works in the design and construction process is not carried out according to specifications, often lead to project completion, natural smoke extraction facilities do not have the effect of its smoke causes mainly has following several aspects:
A is the set of natural smoke exhaust was misaligned window. From natural smoke effect, exhaust window should be as close as possible to the top of the wall, there are a considerable number of natural smoke exhaust window is set in the upper part of the wall, but is lower, from the roof, the greater the distance from the ceiling, is not conducive to natural gas.
Second, natural smoke exhaust window window area does not meet specifications. National standards for the design of tall building fire safety norms on the use of natural smoke exhaust parts of fenestration area shall be clearly defined, but due to some designers do not press specifications carefully calculated, or the fixed window area within the exhaust window area, causing some projects don't exhaust window area to the specification requires that directly affect the smoke effect.
The third is the natural structure of exhaust window. Have made the smoke exhaust window is not open, fixed window, the upper portion of the form to make a fixed window, the window can be opened by the smoke in the lower portion of the window, seriously affect the smoke extraction functionality.
4. installation height high exhaust window missing easy to open the operating organization. According to specification, exhaust window should have opened the device easily, but some of the installation height high, difficult exhaust window are not installed on the negative operating device, fire smoke exhaust window opens.
2. set the mechanical pressurization smoke control equipment parts required to form a top pressure value, mechanical smoke extraction facilities of smoke effect is not evident.
Air and exhaust air, port Yu ya value does not meet the regulatory requirements of the phenomenon is more prevalent in the project, some air, exhaust port speed or even close to zero, this might be caused by more complex, mainly has following several aspects:
1. improper fan selection. According to specification, smoke staircase and vestibule, combined with front room and fire the elevator room of mechanical pressurization air flow, the calculation should be identified, when the calculated values and norms stipulated values do not match, whichever the greater value determines the design directly, according to the specification for a given value determines that often lead to the selection of the blower air flow, pressure is small, can not meet the requirements of the design uses combined ventilation and smoke extraction system, construction was not as designed selection two-speed fan; construction units not complying with the design of the fan model ordering, purchasing power specifications smaller fan, led to a serious shortage of fan.
2. mechanical pressurization system and natural gas facilities in the repeat settings. For building height more than 50 meters of a class of public buildings and buildings of more than 100 meters of residential buildings, in accordance with the requirements of the regulations should set mechanical pressurization system, some projects in this area while using natural gas, resulting in fire, mechanical pressurization system for smoke control window with nature while opening, smoke stairs difficult to form a positive pressure, can not reach the smoke effect.
3, combined with the positive pressure ventilation system was not designed pressure regulation device. According to specification, mechanical pressurization for smoke control staircase and combined with former room, to independently set the air supply system, when you must share a system should be on the way to the front room with air duct pressure difference set on automatic control device. There are many design combined with the positive pressure ventilation system does not have design pressure regulation device, unable to form a staircase of residual pressure is higher than the front room.
4. smoke partition not complying with the specifications set smoke facilities. A considerable part of the project, especially the large shopping centres set up smoke part not specifications set down in the ceiling smoke vertical walls, basement while using architecture beam for smoke, smoke extraction system in the exhaust vent is not according to specification, located in the ceiling or wall near the ceiling, which is located below the beam.
5. air settings do not meet the requirements. Some vertical smoke control system for air fixed louvres-normally open air outlet, outlet sizes basically the same, caused by the layer of air volume and air speed serious imbalances, far away from the fan supply outlet of the air flow is inadequate, even at the end of the diffuser of wind speed, wind rate close to zero.
6, duct shaft construction, air quality is poor. A considerable number of works by ventilation shafts not plastering, plumbing connections are not closed position, normally closed air leakage is not tightly closed, causing very serious air, exhaust air flow of wind speed, the specification requirements, construction unit or even cancel the shaft connection ceiling diffusers for air pipe, use ceiling stuffy air duct space instead of a top, often causing air duct outlet wind speed close to zero.
While some will exhaust system fan exhaust port is set in the Interior, fire smoke from indoor Interior to not only lose the smoke effect, but also may cause the spread of fire.
3. smoke fan of distribution does not conform to specification
One is the fan's power supply to the load level of tall buildings. Some of the power supply line not received since the fire power, but rather add to floor lighting, power distribution box, some design uses single circuit distribution lines, design is not set at the end of the power supply automatic switching device, not a secondary power supply load requirements, exclusive dual-circuit, located at the end of the automatic switching device.
Second, the downlead distributionInstallation of electric lines does not meet the requirements. Some smoke fan distribution line wear PVC plastic pipe, some wear metal tube not brushing fire retardant coating, does not comply with the wearing of fire performance requirements.
4. setting up machinery parts of smoke control facilities specifications set by
1, with podium of smoke control in high-rise building stairwell and front room, fire the elevator room or shared room, when the podium above use can be opened for natural smoke outside Windows, podium section does not have natural smoke condition, its front room or room is not in accordance with the former specifications set positive pressure ventilation system.
2. no more than 20 meters of natural gas in the aisle, some designers who connected smoke before room stairs have natural smoke, think it has the natural smoke conditions, according to the specifications set mechanical smoke extraction facilities.
5. strategies
In view of the above problems, I think the Fire Department should be from the following aspects to strengthen building smoke facilities design and construction supervision:
1, should strengthen smoke facilities design and construction of business mentoring and training. Around the Fire Department for fire alarm and General Electric, fixed (automatic) fire-fighting facilities design and construction of business mentoring and training attaches great importance to the training process often overlooked smoke facilities design and construction professionals.
2. should implement smoke facilities construction by fire facilities construction unit of the system. Smoke management facilities is building automatic fire-fighting facilities, an important part, in accordance with the provisions of its construction by fire facilities construction units, but there are many items of smoke control facilities construction by air conditioning unit is responsible for the installation of construction professionals.
3, fire supervision departments of the examination staff at construction drawing examination, should focus on smoke control facilities design review should focus on the natural smoke exhaust window settings, window size, mechanical smoke extraction facilities set parts, fan selection, the air exhaust port settings, smoke partition until the review, while in construction should be strengthened to smoke the supervision and management of facilities, smoke control facilities as construction supervision and inspection of important content, make timely detection of problems, guidance, supervision and construction units for rectification.