Generally, only buildings used in commerce, office, super high-rise buildings and public buildings need to install fire sprinklers indoors. However, if the fire inspection department thinks that the residential design of the building exceeds the standard (for example, the total floor height exceeds 100 m, and the commercial area of the first and second floors exceeds 300 square meters, etc.). ), the developer must install fire sprinklers for each household.
According to the code for fire protection design of high-rise civil buildings (2005 edition) (GB50045-95), if it is a pure residence, there is no need to install fire sprinklers indoors; If the above is the ground floor of the business house, it does not need to be installed in the house; But if it is a serviced apartment, every household must install it.
Extended data:
Working principle of automatic sprinkler system;
1, closed automatic sprinkler system:
Usually, the roof fire water tank is filled with water. In case of fire, when the temperature of the sprinkler reaches a certain temperature (generally 68℃), the chrome plating of the sprinkler melts, and the water in the pipeline is automatically ejected under the action of the water pressure of the fire water tank. At this point, the wet alarm valve automatically opens, and the pressure switch in the valve automatically opens. The pressure switch is interlocked with the fire pump, which automatically starts.
2, open fire sprinkler system:
The system is equipped with a smoke detector to detect smoke. When the smoke reaches a certain concentration, the smoke detector will give an alarm, which will be fed back to audible and visual alarm for action after being confirmed by the upper computer, and give a sound or flashing light to warn people, so as to start the smoke control and exhaust fan and start smoking. At the same time, the solenoid valve of deluge valve will be opened, and water will be directly sprayed to the linked spray pump and the opened nozzle.
Phoenix net-strange indoor fire
Baidu encyclopedia-fire sprinkler system