Fire gas extinguishing systems generally consist of fire extinguishing agent storage bottle groups, liquid flow check valves, gas flow check valves, pressure switches, selector valves, valve driving devices, nozzles, manifold pipes, release pipe networks, and fire alarm extinguishing controllers. Below, Siemens electrical fire manufacturers will specifically discuss the main components of fire protection systems.

　　- Network-free (prefabricated) automatic fire extinguishing device is a cabinet-type fire extinguishing device that integrates fire extinguishing agent storage container components, pipelines, nozzles, valve driving devices, fire detection components, controllers, etc., capable of automatically detecting and implementing fire extinguishing.

　　- The main components of the cabinet-type low-pressure CO2 automatic fire extinguishing system include fire extinguishing agent storage device (including refrigeration unit, liquid level gauge, pressure indicator, safety relief valve, filling valve, balance valve, etc.), main valve, selector valve, maintenance valve, mechanical emergency start device, diaphragm safety relief valve, nozzle, pipeline, and pipeline accessories.

　　- The low-pressure CO2 automatic fire extinguishing system consists of fire extinguishing agent storage device (including refrigeration unit, liquid level gauge, pressure indicator, safety relief valve, filling valve, balance valve, etc.), device control cabinet, main valve, selector valve, maintenance valve, mechanical emergency start device, safety relief valve, nozzle, pipeline, and pipeline accessories.

　　Main Components of Fire Protection Systems:

　　1. Fire Extinguishing Agent Storage Container:

　　The fire extinguishing agent storage container is always under pressure and is one of the main components of the gas fire extinguishing system. It has a significant impact on whether the system can work normally. The fire extinguishing agent storage container not only stores the fire extinguishing agent but also serves as the power source for the system, providing sufficient pressure for the system to work properly.

　　2. Container Valve:

　　The container valve refers to the control valve installed at the outlet of the fire extinguishing agent storage container. Its function is to seal the fire extinguishing agent during normal times and automatically or manually open to release the fire extinguishing agent during a fire.

　　3. Solenoid Bottle Head Valve:

　　This valve is installed on the starting cylinder to seal the starting gas inside the cylinder. In the event of a fire, the controller sends out a fire extinguishing command, opens the solenoid valve, releases the starting gas, and opens the container valve and the corresponding selector valve on the fire extinguishing agent storage container.

　　4. Selector Valve:

　　The selector valve is a valve used in the combination distribution system to control the release of the fire extinguishing agent to the fire protection area. The selector valve is normally closed, and it can be pneumatically or electrically actuated. Whether it is an electric or pneumatic selector valve, it should have a manual operating mechanism so that the valve can still be opened in case of automatic failure. This selector valve is a pneumatic quick-opening valve, which works by controlling gas to push the drive cylinder piston, driving the crankshaft to rotate, and opening the main valve under the action of the fire extinguishing agent pressure, releasing the fire extinguishing agent. In emergencies, the selector valve can be directly operated by hand to release the fire extinguishing agent.

　　5. Check Valve:

　　Check valves are used to control the flow direction of the medium and are divided into liquid flow check valves and gas flow check valves. Liquid flow check valves prevent the fire extinguishing agent from flowing back to the empty bottle or leaking from the disconnected bottle interface. Gas flow check valves are used to control the starting gas to open the corresponding valve.

　　Previous: Introduction to Fire Alarm System: Common Faults and Solutions for Temperature Sensing Cables

　　Next: Advantages of Intelligent Background Music Systems