Explosion-proof cabinet with high safety factor

Abstract

The invention discloses an explosion-proof cabinet with a high safety factor, which comprises a cabinet body, a partition plate is connected in the cabinet body in a sliding manner, the partition plate divides the interior of the cabinet body into an upper cavity and a lower cavity which are independent from each other up and down, a pressure relief opening is formed in one side wall of the uppercavity, and a pressure relief pipe is connected to the pressure relief opening; and a set of iron whistle and windmill are sequentially connected to the pressure relief pipe in the airflow direction inside the pressure relief pipe, a generator is arranged on one side above the cabinet body, a rotating shaft of the generator is connected with the windmill, a communicating hole is formed in the sideface, opposite to the pressure relief opening, of the cabinet body and communicated with the lower cavity, and the outer side of the communicating hole is connected with a rectangular box body in a covering mode. The rectangular box body is connected to the side surface of the cabinet body. The explosion-proof cabinet has the advantages that the explosion-proof cabinet can release pressure when exploding, the explosion-proof cabinet can make a sound and an alarm lamp flicker to remind a worker by utilizing air pressure generated by explosion, and the cabinet body can be automatically filled with fire extinguishing gas to extinguish a fire.

Description

technical field [0001] The invention relates to the technical field of explosion-proof equipment, in particular to an explosion-proof cabinet with a high safety factor. Background technique [0002] When using electrical cabinets in places with dust, flammable and explosive gases, the electrical cabinets must have good sealing to prevent external dust and flammable and explosive gases from entering the electrical cabinets, but when the components in the electrical cabinets fail Or when the circuit is short-circuited due to improper operation, the instantaneous thermal effect and discharge arc generated in the electrical cabinet are likely to cause an explosion, and a large amount of high-temperature and high-pressure gas will be generated in the cabinet. If the pressure is not released in time, the entire electrical cabinet will explode, thereby causing injury. Passing staff, and when the electrical cabinet catches fire and explodes, the staff often cannot find out at the fi...

AI Technical Summary

Problems solved by technology

[0002] When using electrical cabinets in places with dust, flammable and explosive gases, the electrical cabinets must have good sealing to prevent external dust and flammable and explosive gases from entering the electrical cabinets, but when the components in the electrical cabinets fail Or when the circuit is short-circuited due to improper operation, the instantaneous thermal effect and discharge arc generated in the electrical cabinet are likely to cause an explosion, and a large amount of high-temperature and high-pressure gas will be generated in the cabinet. If the pressure is not released in time, the entire electrical cabinet will explode, thereby causing injury. Passing staff, and when the electrical cabinet catches fire and explodes, the staff often cannot find it immediately, and often miss the best rescue time, resulting in more serious losses

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