Automatic electric switch cabinet fire extinguishing system and fire recognition method

Abstract

The invention discloses an automatic electric switch cabinet fire extinguishing system and a fire recognition method, wherein the automatic electric switch cabinet fire extinguishing system comprises a fire extinguishing agent nozzle which is arranged in an electric switch cabinet; the fire extinguishing agent nozzle is connected with a storage device in which a non-conducting fire extinguishing agent is stored through a pipeline; an electromagnetic valve which is controlled by a central controller is arranged on a pipeline; a photoelectric sensor is also arranged in the electric switch cabinet; and the photoelectric sensor outputs a detection signal to the central controller and then the central controller judges whether to open the electromagnetic valve. The automatic electric switch cabinet fire extinguishing system is capable of responding sudden electric fire and reducing the loss caused thereby. Fire extinguishing agents such as heptafluoropropane and superfine dry powder are used and non-conducting, so that secondary danger caused by conduction of fire extinguishing agents does not occur; and the fire extinguishing agents are environmental-friendly, so that the damage to the environment caused by conduction of fire extinguishing agents also does not occur. The photoelectric sensor is used, so that the fire such as electric arc and the like in the switch cabinet can be rapidly and correctly detected.

Description

technical field [0001] The invention belongs to the technical field of safety protection of electrical switch cabinets, and relates to an automatic fire extinguishing system and a fire identification method for electrical switch cabinets. Background technique [0002] The switch cabinet is a kind of electrical equipment. The outside line first enters the main control switch in the cabinet, and then enters the sub-control switch. Each branch is set according to its needs. Such as instrumentation, automatic control, motor magnetic switch, various AC contactors, etc. Some also have high-voltage room and low-voltage room switch cabinets, and high-voltage busbars, such as power plants. [0003] Switchgear is divided into high-voltage switchgear and low-voltage switchgear: [0004] High-voltage switchgear refers to electrical products that are used for on-off, control or protection in power system power generation, transmission, distribution, power conversion and consumption, and...

AI Technical Summary

Problems solved by technology

[0012] The technical problem solved by the present invention is to provide an automatic fire extinguishing system for electrical switch cabinets. On the basis of overcoming the problems of not being able to extinguish fires directly with water and having polluted fire extinguishing agents, the open flames and electric arcs in the switch cabinets are detected by photoelectric detectors to improve the accuracy Fire recognition ability and automatic processing ability

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