The fire hydrant pipe is connected to the opening direction. The left and right sides face the fire hydrant door. The opening side is divided into left type and right type.

In other words, it is directly opposite the fire hydrant box door. If the door axis is on the left, the door that opens to the left is a left-hand door. If the door pivot is on the right, the door that opens to the right is the right-hand door.

A fire box is a box used to store fire hydrants. In case of fire, press the spring lock on the door according to the opening method of the box door, and the pin will automatically withdraw. After the box door is opened, take out the water gun, turn the hose plate, and pull out the hose.

At the same time, connect the water hose interface to the fire hydrant interface, pull the power switch on the kilometer wall inside the box, loosen the handwheel in the direction of opening the indoor fire hydrant, and spray water to extinguish the fire.

Extended information:

According to the type of nozzle used, the nozzle system can be divided into a closed nozzle system and an open nozzle system.

According to the purpose and configuration of the system, automatic sprinkler fire extinguishing systems are divided into wet systems, dry systems, pre-action systems, deluge systems, water curtain systems, automatic sprinkler foam combination systems, etc.

Wet automatic sprinkler system (hereinafter referred to as the wet system) consists of a closed sprinkler, a wet alarm valve group, a water flow indicator or a pressure switch, a power supply and distribution pipeline and a water supply facility. Under working conditions, the pipeline is pressurized to start the system.

Dry automatic sprinkler system (hereinafter referred to as dry system) consists of closed sprinkler, dry alarm valve group, water flow indicator or pressure switch, power supply and distribution pipeline, aeration equipment and water supply Facility composition. Under quasi-working conditions, the gas distribution pipeline is pressurized to start the system.

The pre-action automatic sprinkler system (hereinafter referred to as the pre-action system) consists of a closed sprinkler, a deluge valve group, a water flow alarm device, a power supply and distribution pipeline, an inflatable equipment and a water supply facility. Under quasi-working conditions, water distribution pipes are not filled with water. The fire alarm system converts it to a wet system after automatically opening the deluge valve.

Baidu Encyclopedia - Fire Protection Code for Building Design