【 Weak current College 】 liquefied gas station, gas station fire common sense (2)

26, bottle bank LPG cylinders should be how to stack?
Library of real bottle, empty bottle should be separate from the stack, and left-channel and spacing; bulk density as a real bottle and 15Kg 15Kg more empty, bottle should be in single-layer stack, bulk density as the empty bottles and 15Kg 15Kg below empty and full bottles should not exceed two-layer stack.
27, liquefied gas station how to eliminate controls the fire?
LPG storage and distribution, supply station to delineate the no-fire zone, to ban all sources of ignition. Main measures:
(1) Prohibition of tractors, car, motorcycle and wagons, etc into no-fire zone, automobile, car access, must be in the exhaust pipe is equipped with a fire retardant hood;
(2) to the station (library) staff must wear anti-static shoes and anti-static clothing, carrying lighters, matches, not allowed to use a tool that produces sparks;
(3) station, in the explosion-proof electrical equipment, tank area to install lightning, storage tanks, piping systems to install daochu electrostatic facilities;
(4) forbidden in stations, libraries and around hot welding and cutting jobs. For home users using liquefied petroleum gas (LPG), close to the high requirements of steel cylinders not to be able to use the same room with; equipment leaks, you want to ban all around the fire, and do not switch the device to prevent electrical discharge.
28. why LPG fire with fire under cool, area, speed characteristics?
(1) liquid petroleum gas, than air to leak out from the device often compare the low-lying areas stagnation, accumulation;
(2) LPG has spread along the ground, could spread to distant places to form large combustion or explosion;
(3) LPG combustion heat, flame temperature is very high.
In the light of the above three characteristics, liquefied petroleum gas fire with fire under cool, area, speed characteristics.
29, liquefied petroleum gas equipment is on fire, the fire key??
Cut off the gas.
30, what is prohibited on the truck to filling jobs?
(1) tankers are not extended; (2) of the tank car's paint colors, not easy to identify the nameplate and labels; (3) safety and fire protection, fire-fighting equipment and accessories for incomplete, damaged, defective or not in compliance with the requirements; (4) the Division of the charge no valid documents; (5) Visual inspection of the tank has a defect, does not guarantee the safe use of, or accessories and vehicle between fixtures does not secure or is corrupted.
31. what circumstances must stop the car's handling?
(1) lightning weather; (2) a fire broke out near; (3) detect liquid petroleum gas leakage; (4) hydraulic exception; (5) other factors that are not secure.
34, periodic inspection of the truck so? what items should be tested?
Periodic inspection of the vehicle tank divided into annual inspection and comprehensive testing. Annual inspection required annual inspection once; a comprehensive examination every five years, but after putting in the new car in the second year shall be the first comprehensive examination. If in year serious deficiencies found during inspection, should conduct a comprehensive inspection in advance.
Tanker's annual survey include the following: (1) tank surface paint color, check the nameplate and mark; (2) inspection of the tank surface; (3) safety valve, emergency shut-off valve, level gauge, pressure gauge, thermometer and fire extinguishers and other safety devices for performance verification, or for non-conformity, failure should be replaced; (4) air tightness test.
Comprehensive examination of tank cars include the following: (1) inspection of the entire project; (2) tank of spray paint surface rust in vitro; (3) for the determination of the tank wall thickness; (4) non-destructive testing; (5) if it does not have any problems or issues have been properly dealt with, in accordance with the regulations for test and air tightness test.
35, tanks of the dock so?
Tank cars by location separate parking, full of liquid tanker shall enter the garage. Tank halfway docked, must comply with the following provisions:
(1) driver and escort officers shall at the same time away from the vehicle;
(2) shall not be docked to the authorities, schools, factories, bridges, warehouse and personnel in the densely populated areas;
(3) parking location should be well ventilated, no open flames within 10m and building, the summer should have shading measures to prevent exposure;
(4) parking maintenance, you should use a tool does not generate Sparks, open flame job allowed;
(5) transit parking if you exceed 6h, should contact the local police departments, according to the specified secure parking place.
34. why requirements on liquefied petroleum gas equipment and technology pipeline to take measures against static electricity?
Liquefied petroleum gas in the pipeline and equipment movements will generate static friction and, if not timely daochu, will arise due to electrostatic accumulation up to several thousand volts of dangerous voltage, if not to take the measures it will cause a fire. Therefore, liquefied petroleum gas equipment and pipelines must be grounded, the grounding resistance should not be greater than 10 Ω.
35, LPG distribution station electrical explosion protection and lightning protection level?
A: tank farm of electrical design should follow the existing electrical design spec Q-2, lightning protection according to the second consideration. Lightning protection equipment for shock resistance should not greater than 10 Ω, and electrical equipment connected to the grounding system of protection.
36. why requirements in tanker truck bed Office installed ground piles?
In the tanker loading and unloading, as liquefied petroleum gas equipment and pipe flow process, easy to produce static electricity. According to the determination of when the voltage is greater than the 350V, its discharge can cause liquefied petroleum gas combustion and explosion. Therefore, in order to prevent electrostatic accumulation tank truck bed, in the Office it is necessary to install ground piles to prevent electrostatic accumulation and cause a fire accident.
37, LPG distribution station tank area why requires a gazebo and spray water device?
Liquefied petroleum gas (LPG) media size consists of the following two factors: (1) the composition of LPG in percentage; (2) medium temperature. Because the composition of LPG in a proportion not by the user can decide, thenThe LP-users can only control the temperature of the methods to avoid container due to temperature is too high, but bursting phenomena.
Therefore, during the installation of LPG storage and filling stations, in order to control storage tank wall temperature does not exceed 50 ° c, consideration should be given in the tank area installed Pergola and spray water device, to the role of cooling heat insulation to prevent the vessel from wall temperature is too high and bursting phenomena. This is summer temperature higher areas particularly necessary, for example, Wuhan, Nanjing and other regions. Making in the Pergola, you should ensure that its beam off the tank top is not lower than 2m, is intended to facilitate staff in tank installation or operation, also for the security needs of staff.
38, why LPG distribution station is directly linked to an outside connection pools and ditch?
Because LPG station of water contains a residual liquid or liquefied petroleum gases, liquefied petroleum gas (LPG) in order to prevent or residue with the water flow to the station, burned back to station yuhuoyuan explosion fire accident. Therefore, do not allow liquid petroleum gas distribution station is directly connected with the outside world and ditch drainage.
39, liquefied gas storage station gate why require the installation of fire hydrant?
LPG storage and distribution stations of storage tanks and bottle, and so is prone to leak and cause a fire accident. If the fire hydrants in the station area instead of standing at the door, in the event of fire, is very hard to approach and use the fire hydrant, fire extinguishing the fire hydrant lost. Therefore, the fire hydrant should be set in the LPG distribution station entrance.
40, automobile service stations in accordance with the storage of oil product size can be divided into several levels?
According to the gas station storage oil capacity sizes, can be divided into level service stations with a total capacity of 150 m3 61-?; secondary service stations with a total capacity of 16-60 m3; third-level automobile service station is less than or equal to 15? m3.
41, why would the city urban gas station construction level?
Because level filling station tank capacity, fuel quantity, the effects on the surrounding threats are large. So the small oil storage depots and petrol station design specifications "section 3.1.1 stipulates in urban urban construction level filling station is not appropriate.
42, gas station unloading operations should be how to prevent static damage?
(1) tanker unloading tank must first be before the grounding, and static 5min above;
(2) the holder must use dedicated grounding clamp, grounding line for copper, and cross-sectional area of not less than 10mm2;
(3) you must use the quick connector, splash-unloading is strictly prohibited;
(4) job site must consist of drivers and station staff full guardianship;
(5) job site must be placed 35Kg powder cart a car, oil tank outlet cover asbestos was.
43, how to prevent static damage tanker?
(1)? reliable earthing tanker due;
(2)?, oil gun filling should be in direct contact with the fuel tank to eliminate static electricity fuel tank;
(3) not to plastic pot directly charging light oil.
44, how to divide filling station explosion hazard zone level?
Gas station storage of oil products in your unloading, storage, transmission and transformation operations, extremely volatile oil vapor and air mixture formation of explosive gas mixtures, according to the frequency of the occurrence and duration, will be an explosion hazard zone is divided into three levels: 1, 0, district: i.e. consecutive or long explosive gas, a mixture of regional; 2, zone 1: normal operation possible explosive gas mixture in the region; 3, 2, area: normal run-time not possible explosive gas mixture in the region, or even if there are only a short time of explosive gas mixture in the region.
45, how to divide the floor horizontal tank explosion hazardous areas?
(1) above the surface of tank internal buildings in the space designated for 0 zones;
(2) the amount of oil hole, breathing valves as the Center, radius 1.5m spherical space and an explosion hazard zone mainland ping following hang, Groove is classified as zone 1;
(3) the distance between the outer top of the tank and 3 m wide and fire-dike-tank wall height of dike high range designated for zone 2.
46, how to divide the explosion hazard zone tanker?
(1) the internal space and shell tanker explosion hazardous areas of mainland ping following hang, Groove is classified as zone 1;
(2) to dispenser centerline to Center, RADIUS is the RADIUS for 3m, following 4.5m, height from the floor up to the top of the tanker 0.15m, cone-shaped space for zone 2.
47, gas distribution equipment what provisions?
(1) low-voltage power strips can be set up at the station. Switchboard room of doors, Windows and tanker, tank ventilation tube mouth, airtight unloading mouth, etc., should not be less than 5m;
(2) petrol electrical equipment specifications, explosion hazardous areas should be classified;
(3) indoor, tent and signs of lighting should choose protection type;
(4) stations of power lines should be used armored cable buried or wire wear steel pipe laying. When the cable is more, you can use cable trenches, laying of cables with oil pipeline laying in the same trench, and cable trenches within sand, shall form the oil and gas gathering space.
48, explosion hazardous areas of distribution line what are the regulations?
Overhead line no cross fire or explosion hazard zones, overhead lines and an explosion hazard zone of horizontal distance should not be less than towers high 1.5 times. An explosion hazard zone should be sheathed cables directly buried pipe laying or wire wear. Wires and cables with aluminium conductors cable should not be used.
49, explosion-proof electrical equipment daily inspections and checks of the main content?
(1) check the outside surface is clean and there are no cracks, deformation;
(2) check the ventilation of the area, the monitoring of surface moisture and shell bearing parts of temperature change, there is no exception;
(3) listen operation noise is normal;
(4) check whether the complete strong fasteners, grounding and zero is good;
(5) check into line equipmentSeal is good;
(6) examine the explosion-proof oil-equipment for the oil level and oil colors correctly;
(7) check the explosion-proof electrical and explosion-proof lamps are intact.
50, gas station, why no pyrotechnics?
Cigarette butts of surface temperature of 200-300 ° c, up to 700 Center-800 ° c, far exceeding the ignition of petroleum products, to throw cigarette butts in contact with them and combustibles, easily lead to burning, even causing fires, explosions.
51, gas station fire?
(1) sudden, i.e. fire occurs in the moment, once the fire spread plague soon;
(2) high thermal resistance, oil product once burning is able to quickly release a lot of heat. High heat convection and radiation, not only accelerates burning fuel evaporation and combustion speed, and as a result of heat conduction and radiation, and easily compromise the neighbouring objects, expanding the range of combustion;
(3) alternative combustion and explosion. The characteristics of the oil products fire, often manifested in combustion and explosion occurred on the turn, and this is due to the combustion of hydrocarbon concentration in the ever-changing effects of combustion and explosion, constantly transformed so that the fire is continuously expanded to include suppression of difficulties.
52, gas station fire equipment to outfit?
(1) each refuelling island should set 2 only protable extinguisher.
(2) each dispenser should be set 1 only protable extinguisher or 6L portable efficient chemical foam fire extinguishers. But more than 6 tanker, still pressing 6 only settings. These fire extinguishers should be storing them in the station house.
(3) buried or ground horizontal tank should set 1 70Kg trolley dry chemical fire extinguisher and 1 100L trolley-foam fire extinguishers.
One, two gas stations on one block of asbestos was, 5 2 cubic meters of sand, 5 Spades. Three-level gas station should be asbestos was 2 blocks.
53, gas station fire fighting plan should have which content?
Gas station fire fighting plan must be prepared as a basis for training and combat, the plan should include the following: (1) Organization leadership and command system. (2) geographic location; the number and volume of the tank; the location, quantity, tanker; oil strike; other oils place, quantity. (3) the building structure, fire resistance rating, size, height, internal facilities and the distance between each other. (4) fire-fighting operational staffing, a division of the arrangement, the security forces, material saving, evacuation measures and appropriate procedures. (5) the number of all fire-fighting equipment, placement, emergency complementary measures. (6) external communications and foreign aid forces deployment, command, and so on. (7) draws fire plan plan, together with a fire-fighting and hanging to stand out.