Function and use method of fire elevator

Function and use method of fire elevator
(1) How to determine which elevator is a fire elevator A high-rise building has a number of elevators, and the fire elevator is basically used with passenger and cargo elevators (usually carrying passengers or goods, when entering the fire state, it has a fire function), how to determine which elevator is a fire elevator? Its main appearance features include the following aspects:
1. The fire elevator has a front room. The area of the front room of the independent fire elevator is: the front room area of the living building is greater than 4.5 square meters; The front room area of public buildings and high-rise factory (warehouse) buildings is greater than 6 square meters. When the front room of the fire elevator is shared with the smoke-proof staircase, the area is: the front room area of the residential building is greater than 6 square meters, and the front room area of the public building and the high-rise factory (warehouse) building is greater than 10 square meters.
2. The front room of the fire elevator is equipped with a Class B fire door or a fire roller curtain with stagnation function.
3, fire elevator car is equipped with a special fire telephone.
4, in the first floor of the elevator door is provided with the appropriate position for the fire brigade special operation button. The operation button is generally protected by a glass sheet, and the words “fire special” and so on are provided in the appropriate position.
5, when the normal power supply is cut off, the lighting in the non-fire elevator has no power, and the fire elevator is still lit.
6, the fire elevator front room with indoor hydrant.
(2) When designing high-rise buildings, according to the national norms, the function of the fire elevator is designed as: fire elevator and passenger (or cargo) elevator, when a fire occurs, by the fire control center instruction or the first floor of the fire brigade special operation button control into the fire state, should achieve:
1, if the elevator is going up, immediately stop at the nearest floor, do not open the door, and then return to the first floor station, and automatically open the elevator door.
2, if the elevator is going down, immediately close the door and return to the first floor station, and automatically open the elevator door.
3, if the elevator is already on the first floor, immediately open the elevator door to enter the firefighter special state.
4. The call button of each floor loses its function, and the call is removed.
5, restore the command button function in the car, so that firefighters can operate.
6. The door close button has no self-retaining function.
(3) The use of fire elevators
1. After arriving at the front room of the fire elevator on the first floor (or sharing the front room), the firefighters shall first break the glass sheet protecting the fire elevator button with the hand axe or other hard objects they carry with them, and then place the fire elevator button in the connected position. Depending on the manufacturer, the appearance of the button is not the same, and some only have a small “red dot” painted on one end of the button, and the end with “red dot” can be pressed down during operation; Some have two operation buttons, one is black, marked with English “off”, the other is red, marked with English “on”, the operation will be marked with “on” red button to enter the fire state.
2, after the elevator enters the fire state, if the elevator is in operation, it will automatically drop to the first floor station, and automatically open the door, if the elevator has stopped at the first floor, it will automatically open.
3. After the firefighters enter the fire elevator car, they should press the door close button tightly until the elevator door is closed. After the elevator starts, they can let go, otherwise, if they let go during the closing process, the door will automatically open and the elevator will not start. In some cases, just pressing the close button is not enough, you should press the button of the floor you want to reach with the other hand while pressing the close button, until the elevator starts to let go.