Stepped aerogenesis dry powder extinguishing device

Abstract

The invention provides a stepped aerogenesis dry powder extinguishing device. The stepped aerogenesis dry powder extinguishing device comprises a tank body, a piston assembly and a stepped aerogenesis device; dry powder extinguishing agents are stored in the tank body; the tank body is provided with a first end and a second end; the first end of the tank body is provided with a pipeline connector for being connected with a flow collection pipeline, the pipeline connector is internally provided with a damp-proof diaphragm, and the second end of the tank body is provided with a lower end cover; the piston assembly is slidably arranged on the inner side of the tank body, and the middle of the piston assembly is provided with a pressure diaphragm; and the stepped aerogenesis device is arranged in a space which is formed between the lower end cover and the piston assembly. According to the stepped aerogenesis dry powder extinguishing device, the initial pressure of the extinguishing device is not too high during extinguishing, moreover, the pressure lasing time is long, and the extinguishing device is very suitable for an automatic extinguishing system with a long flow collection pipeline.

Description

technical field [0001] The invention belongs to the field of fire-fighting equipment, in particular to a stepped gas-producing dry powder fire extinguishing device. Background technique [0002] An electric locomotive is a vehicle specially used to provide power for trains. Its electric drive system includes pantographs, main circuit breakers, traction transformers, silicon rectifiers, smoothing reactors, traction motors, braking resistor cabinets, and auxiliary electrical equipment and control appliances. Equipment, etc., all of the above are potential fire hazard sources. Electric locomotives are also prone to phenomena such as frictional overheating, brake overheating, cable overcurrent insulation aging, overheating breakdown and short circuit of electrical components in the brake cabinet, overheating and burning of heating components during high-speed operation, all of which may cause fire accidents. Most of the existing models of electric locomotives in my country are ...

AI Technical Summary

Problems solved by technology

Electric locomotives are also prone to phenomena such as frictional overheating, brake overheating, overcurrent insulation aging of cables, overheating breakdown and short circuit of electrical components in brake cabinets, and overheating and burning of heating components during high-speed operation, all of which may cause fire accidents

Most of the existing models of electric locomotives in my country are only equipped with traditional hand-held small dry powder fire extinguishers in the cab. This kind of fire extinguisher needs to be extinguished manually. The automatic fire extinguishing system and supporting implementation devices, and the accessories of parts that are prone to fire are often limited in space, and the fire extinguishing agent storage bottle cannot be placed in advance. It is necessary to pre-set the dry powder fire extinguishing agent collecting pipeline to lead here. With the lengthening of the pipe network, the driving pressure in the existing fire extinguishing agent storage bottle is often insufficient, the pressure decays quickly, and the duration is short, which cannot effectively extinguish the fire. If the driving pressure in the fire extinguishing agent storage bottle is directly increased, Due to the high initial pressure during use, the risk of bursting of the fire extinguishing agent storage bottle and the collecting pipeline itself increases, which increases the safety hazard of the electric locomotive

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