【 Weak current College 】 fire elevator using method and an emergency response---Power By 【 China power house network 】

High-rise building fires, fire fighters to extinguish fire elevator ascent to reach the fire floor saves time and reduces the physical exertion for firefighters, fire fighting, also in a timely manner to the scene of the fire-fighting equipment transportation. Therefore, put out the fire fire elevator in occupies a very important position.

First, set range of fire elevator design fire protection standard for the construction and the design of tall building fire safety code for elevators are set on fire for a clearly defined scope, requirements for the following five conditions should be set fire elevator:
1, senior class of civil public buildings;
Layer 2, 10 and 10 storey residential tower;
3, 12 and 12 storey residential dwelling unit and tonglangshi;
4, building height over 32 m in the other two types of public buildings;
5, building height more than 32 m is equipped with the elevator of high-rise buildings and warehouse.
In practice, building designers are designed according to the above requirements, even if there is fire elevator engineering designers who are not design the specification requirements, fire services lifts fire oversight body examination staff according to the norms and requirements of its additional fire elevator.

Second, the fire service lift function and use methods
(A), how to determine when the fire is fire elevator which lift of a building and a number of high-rise buildings and fire lift elevator Basic is both passenger and freight elevators (usually carrying passengers or goods, into the fire, with fire feature), how to determine which elevators are fire elevator? its main facade features include the following:
1. before the fire elevator operates. Independent fire the elevator room area: residential building of the former room area greater than 4.5 square meters; public buildings and tall factory (library) in front of the housing buildings is greater than 6 square meters room area. When the elevator room fire and smoke staircase and vestibule, its area is: residential building with an area greater than before, 6 square meters, public buildings and tall factory (library) room, room area before construction combined with greater than 10 square meters.
2, fire the elevator room class b fire doors are installed or have stagnated features fire shutter.
3, fire the elevator car features a dedicated fire phone.
4. in the first floor of the elevator doors in the appropriate location for the firefighters dedicated action buttons. Action buttons commonly used glass protection, and at the right location with red special "fire".
5, when the normal power outage, fire lighting inside the elevator without electricity, but the fire is still lighting inside the lifts.
6, the elevator room is equipped with a fire hydrant.
(2), the functional design of fire elevator staff in the design of high-rise construction, under the national specifications, the fire service lift feature is designed to lift and guests: fire (or goods) elevator use, when there is a fire, the fire control centre instructions or first tier firefighters dedicated action button control into the fire State should meet:
1. lift if you are in the uplink, then immediately call the most recent layer, not open the door, and then return to the first floor and the elevator doors open automatically.
2. If the lift is in the downlink, immediately close returns the first layer, and automatically open the elevator doors.
3. If the lift is in the first layer, then immediately open the elevator door into the firemen private state.
4. the floor of the elevator button loses the function call, the call of duty.
5, recovery instructions button in the car so that the firemen operation.
6. Close button not hold function.
(3), the use of fire elevator
1, firefighters arrive the first floor of the elevator room fire (or combined front room), the first portable hand axe, or other hard objects will protect fire elevator buttons glass break and then fire the elevator button placed on location. For manufacturers, the appearance of the button is not the same, there's only one side of the button with a small "red dot" operation with the "red dot" end pressure; it has two action buttons, a black, marked "OFF" is available in English and one in red, marked in English "ON", the operation will be marked with the "ON" red button press to enter the fire.
2. lift into the fire, if the lift is running, it will automatically be reduced to a first floor stand, and automatically opens the door, if the original has been stopped in the elevator at the first floor, open automatically.
3, firefighters entered the fire inside the elevator, the close button by using mean until the elevator doors closed, and only after the lift starts, otherwise just let go, in the closing process, such as releasing the hand, the door is opened automatically and the elevators will not start. In some cases, only bear press close button is not enough, you should immediately press the close button, with the other hand will hope to reach the floor button pressed until the lift starts to let it go.

3. emergency measures in case of emergency
Fire situation and changeable, although fire elevator at design time using double-circuit power supply, and the last level distribution box is equipped with automatic switching device. Then, the firefighters in the elevator car once the elevator stops running within?
(I), external personnel rescue method
In the normal run-time fire elevator, elevator room, used to indicate that the lift running light is glowing, once a power outage, this led will turn off. At this time, the fire commander shall immediately take the following two measures to rescue the elevator.
1. send to is located on the roof of the elevator in the engine room fire, using artificial methods to the elevator shaft of the car dropped to the first-tier station. Elevator manufacturers in order to ensure the safety of persons by ladder, in the design of the elevator, designed the outage of automatic protection devices, when the elevator after losing power, in order to prevent the car fast rising (due to the role of the lift weight) for machinery of the hoist machine axis holding brake dies, it is often said that a "seizure". Rescue workers (conditional, it is best and Enterprise elevator maintenance personnel) to enter the elevator machine room, to quickly search for the "ABS" let go of the tool (the tool usually yellow, near the hoist, each elevator room a total of 2 pieces)To one side at a winch located up to remove the protective cover from (the cover consists of two bolts securing the two bolts without the aid of tools you can remove by hand), remove the protective cover, the first to use special tools in a hook shape tool, will hook into fixed under the protective cover on the side of the hole, and then use his Rod principle will be located in the highest point of the connecting rod pressure when the elevator car suspension lift weight object role goes up, this is we don't want to, how to make the car dropped to the first floor? requires two special tools in another pieces, the pieces of tool inserts and winch coaxial shafts, by an officer with the hook shape tools push-rod and the other officers to clockwise, the elevator shaft of the cabin would decline until down to the first floor.
2, sent by beating the elevator doors, determine the elevator car docking location, and then to the rescue. Because of the elevator and elevator shaft of the shielding effect, firefighters to carry the function of the radio station will be lost, in this case, the Commander can send someone to take the rap on each floor of the elevator doors and complemented in loud initiative to determine the position of the elevator car. Location OK, first with his hand hammer or pliers to the elevator shaft door Keyhole destroyed, then using flat screwdriver inserts, downward pressure, due to the closure of the elevator shaft door hook hook, doors will open automatically; the elevator shaft's doors open, and then open the car door. Open the car door is very simple, first with his hand hammer insert second door in a door between the door to staff can stretch into, a person can use the second hand will be the second door to the left, right, so the car door open, will lift personnel. Because this door pull force of 20 kg.
(2), the elevator car in self-rescue
Because external rescue workers in carrying out the rescue time need to implement the position of the elevator room roof, and try to open the doors of the elevator machine room, and then determine which is the fire of the hoist, lift and need to use special tools, need more time; when using the second method, you first need CGI implementation car dock location, and then, with the help of tools will be the second door (elevator shaft door and cabin doors) open, this time will not be too short, so the car's internal personnel shall carry out self-help.

Self-help method has two kinds:
One is located in the elevator car inside the first press the car door open (methods with external personnel to rescue the second way to open the car door), and then locate the elevator shaft right side door in the upper left, then hands will touch up and down the second small wheels, on the left side of the small wheels (some distance below the small wheels 30-40 mm), a metal bar, hand to push up a metal bar, an elevator shaft door will open automatically, can escape the elevator shaft and thus the success of self-help. Because of the elevator in the elevator shaft of the docking location, so when the car door is open, as soon as there is no lighting, should carefully touch, find the right door in the upper left corner of the metal bar, hand to push up a metal bar, you can escape.
Second, when the car door open when faced with a reinforced concrete wall, only the following measures.
First, the use of a shoulder methods (that is, a man down, another person to keep your feet on the squat one shoulder) assume that carry hand axe damage car cabin at the top, from the top open channel, enter the car's cabin roof. Because the elevator manufacturer in the production of Elevator, the top of the cabin from the cabin door most distal third intermediate has a manhole, for people to access, this man-hole with a thin metal plate closed, can easily be damaged.
Second, enter the car's cabin roof, first looks of the car in person to the cabin top, and then look for the elevator shaft's doors, when you find the right elevator shaft door half a side door, down the right hand to move to the goalkeeper's left is touched up and arrange the second wheel, and then use the first method will open the door on the sidewall, before entering the fire service lift, thereby escape room.

Note:
1. in the save process, if the firemen portable lighting tool, it's easy;
2. If in the self-help, elevator car, no matter who is in the car, or on the car roof, you must immediately stop all self-help measures to strengthen their own protection, when the elevator stops running, and then save.