Explosion-proof device of inflatable switch cabinet

Abstract

The invention belongs to the technical field of switch cabinet explosion prevention, particularly relates to an explosion-proof device of an inflatable switch cabinet, and provides the following scheme for solving the problems that an explosion-proof cylinder or an explosion-proof box is mostly arranged on a cabinet body, a pressure release valve is arranged on the explosion-proof cylinder, the pressure release mode of the pressure release valve is single, and when the air pressure in the cabinet body is high, the temperature rises and cannot be reduced. The device comprises a cabinet body, cooling boxes are fixedly connected to the inner walls of the two sides of the cabinet body, the two cooling boxes communicate with each other through a same communicating pipe, a liquid cylinder is fixedly connected to the rear side of the cabinet body, a filtering box is movably connected into the liquid cylinder, and a liquid pump is arranged in the liquid cylinder; a same liquid inlet pipe is communicated between the water outlet of the liquid pump and one of the two cooling boxes, and a return pipe is communicated between the other cooling box of the two cooling boxes and the liquid cylinder. The device is convenient to operate, has multiple pressure relief modes, can realize secondary pressure relief, and can cool the cabinet body when secondary pressure relief is achieved.

Description

technical field [0001] The invention relates to the technical field of explosion-proof switchgear, in particular to an explosion-proof device for an inflatable switchgear. Background technique [0002] The switchgear is a kind of electrical equipment. The external line of the switchgear first enters the main control switch in the cabinet, and then enters the sub-control switch. If there is a continuous arc flashover inside the switch, the gas in the gas box will expand rapidly. When the gas pressure exceeds the strength of the gas box, the gas box will explode. In order to ensure that the gas box will not injure the operator or damage other equipment when the gas box explodes , it is necessary to carry out explosion-proof design for the air box. [0003] Existing explosion-proof cabinets are mostly equipped with explosion-proof cylinders or explosion-proof boxes on the cabinets. Pressure relief valves are arranged on the explosion-proof cylinders. Contents of the inventio...

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Problems solved by technology

[0004] The purpose of the present invention is to solve the problem that an explosion-proof cylinder or an explosion-proof box is arranged on the cabinet body in order to solve the problem of the explosion-proof of the existing cabinet body, and a pressure relief valve is arranged on the explosion-proof cylinder. The shortcomings of rising and inability to cool down, and a kind of explosion-proof device for inflatable switchgear is proposed

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