Automatic fire extinguishing system refers to a system that can automatically detect, control and extinguish fire in the event of a fire, including automatic sprinkler system, gas fire extinguishing system, dry powder fire extinguishing system, aerosol fire extinguishing system, etc. Different automatic fire extinguishing systems have different components, working principles and scope of application. The following are some brief introductions: • The automatic sprinkler system consists
of sprinkler heads, alarm valve groups, water flow alarm devices (water flow indicators or pressure switches), etc. Components, as well as pipelines, water supply facilities, and an automatic fire extinguishing system that can spray water in the event of a fire type. The automatic sprinkler system is suitable for general buildings and places, especially high-rise buildings, but it is not suitable for low or high temperature environments, and places sensitive to water damage.
• The gas fire extinguishing system is an automatic fire extinguishing system that uses gas agents to chemically or physically act on combustibles in the protected area to extinguish or suppress combustion. The gas fire extinguishing system is composed of gas storage device, pipeline fittings, release device, control device and detection device, etc. Gas fire extinguishing systems can be divided into inert gases (such as carbon dioxide, nitrogen, etc.), halogenated hydrocarbons (such as heptafluoropropane, tetrafluoromethane, etc.) and cleaning agents (such as fluorocarbon ketones, etc.) according to different agents. The gas fire extinguishing system is suitable for places sensitive to water damage or easily damaged, such as electronic equipment, archives, valuables, etc., but not suitable for places with dense population or good ventilation, and places that may cause secondary pollution or hazards.
• The dry powder fire extinguishing system is an automatic fire extinguishing system that uses dry powder agents to chemically or physically act on the combustibles in the protected area to extinguish or suppress combustion. The dry powder fire extinguishing system is composed of dry powder storage device, pipe fittings, release device, control device and detection device. Dry powder fire extinguishing system can be divided into ABC type (applicable to A (solid), B (liquid) and C (gas) fires), BC type (applicable to B and C fires) and D type according to different agents. type (applicable to metal fires) and other types. The dry powder fire extinguishing system is suitable for places that are not sensitive to water stains or easily damaged, such as oil depots, substations, mechanical workshops, etc., but not suitable for places that are sensitive or easily damaged by dry powder dust, and places that may cause secondary pollution or hazards place.
• The aerosol fire extinguishing system is an automatic fire extinguishing system that uses aerosol agents to chemically or physically act on combustibles in the protected area to extinguish or inhibit combustion. The aerosol fire extinguishing system consists of an aerosol generator, pipe fittings, release device, control device and detection device. Aerosol fire extinguishing systems can be divided into solid type (such as ammonium nitrate base, etc.) and liquid type (such as heptafluoropropane base, etc.) according to different agents. The aerosol fire extinguishing system is suitable for places that are not sensitive to water damage or are vulnerable to damage, such as electronic equipment, archives, valuables, etc., but not suitable for places with dense population or good ventilation, and places that may cause secondary pollution or hazards place.
