Mistake-proof device for airtight tank

Abstract

The invention particularly discloses a mistake-proof device for an airtight tank. The device comprises an airtight tank body, an airtight tank fastening device, an airtight tank cover, an airtight tank body annular support, a table top fixing block, an airtight tank cover limiting block, a long rotating roller, an airtight tank cover fixing frame, a short rotating roller, an airtight tank cover fixing hook, an electromagnet, a button contact switch, a pressure gage, a power source, a first relay, a second relay and a timer. The airtight tank cover and the airtight tank body are connected together, so that the hidden danger that the airtight tank cover flies out to hurt people is eliminated. Meanwhile, according to the mistake-proof device for the airtight tank, during ventilation, only the ventilation time and the negative pressure value of the airtight tank need to be set, automatic exhaust and cover opening of the airtight tank can be achieved, personnel life dangers caused by misoperation of operators are avoided, and safety and working efficiency are improved.

Description

technical field [0001] The invention belongs to the technical field of airtight tanks, in particular to a fool-proof device for airtight tanks. Background technique [0002] The airtight tank is used to hold high-pressure liquid. The tank and the lid of the existing airtight tank are fixedly connected by the locking ring of the airtight tank. When ventilating, the inside of the airtight tank is in a high-pressure state. If the tight ring is not tightened, the airtight tank is not fully exhausted, or the tank is opened directly without venting, the high-pressure air in the tank will instantly lift the lid, which will cause life danger to personnel. Contents of the invention [0003] The object of the present invention is to provide a fool-proof device for an airtight tank to solve the above-mentioned technical problems in the prior art. [0004] In order to achieve the above object, the technical solution of the present invention is: an airtight tank fool-proof device, inc...

AI Technical Summary

Problems solved by technology

[0002] Airtight tanks are used to hold high-pressure liquids. The tank and lid of the existing airtight tanks are fixedly connected by the locking ring of the airtight tank. When ventilating, the inside of the airtight tank is in a high-pressure state. If the operator makes a wrong operation, the airtight tank will lock If the tight ring is not tightened, the airtight tank is not fully exhausted, or the tank is opened directly without venting, the high-pressure air in the tank will instantly lift the lid, which will cause life danger to personnel.

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