Safety pressure-relieving valve for explosion-proof compressed-air storing tank

Abstract

The invention relates to a safety pressure-relieving valve for an explosion-proof compressed-air storing tank, which comprises a safety valve body, wherein a movable tappet is arranged in the safety valve body, the movable tappet is connected with the safety valve body through an elastic supporting part, the lower end of the movable tappet is provided with an elastic metallic diaphragm, a metallic contact piece I and a metallic contact piece II are arranged above the elastic metallic diaphragm, a pressure-relieving groove is arranged on the safety valve body, and the metallic contact piece I and the metallic contact piece II are connected to the inner part of an early-warning circuit. The safety pressure-relieving valve has the advantages of simple and compact structure, reliability in working and good safety performance. By using the safety pressure-relieving valve, the total mass of the air storing tank is decreased, the cost is saved, and the application range is wide.

Description

technical field [0001] The invention relates to a safety pressure relief valve, in particular to an explosion-proof compressed air storage tank safety pressure relief valve. Background technique [0002] Existing compressed air tanks usually increase their strength by increasing the wall thickness of the tank. When the pressure in the gas storage tank rises due to gasification, heating, etc., if the pressure cannot be reduced in time to maintain the pressure in the gas storage tank stable, it will often lead to an explosion. At present, most of the depressurization of the gas storage tank can only be realized manually by the driver; in addition, because the compressed air storage tank is widely used, it is often used in engineering construction sites, and the working environment is harsh, high temperature, and large vibration, so it is necessary for gas storage As the pressure of the tank increases, good precautions must be taken in terms of explosion-proof safety. [0003...

AI Technical Summary

Problems solved by technology

[0003] Chinese patent 95230377.9 discloses a non-leakage full-open pressure relief valve for gas cylinders. Although the valve has automatic pressure relief, explosion-proof and automatic reset functions, it seems to protect the gas storage tank if only the flammable high-pressure gas is discharged out of the gas storage tank. safety, the fly in the ointment is that there is no alarm function

Especially, when it is used as a pressure relief valve for gas cylinders, if the combustible gas leaks for a long time but cannot be reported to the police, and it is always unknown, it will inevitably bring a huge explosion threat to the surrounding environment.

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