Pilot-operated high-pressure pneumatic solenoid switch valve

Abstract

The invention belongs to a pneumatic switching valve, and particularly discloses a pilot-operated type high-pressure pneumatic electromagnetic switching valve. The pilot-operated type high-pressure pneumatic electromagnetic switching valve mainly comprises a main valve body, a direct current electromagnet and a working opening connecting piece. A pilot-operated valve body is arranged on one side of the main valve body. A cavity is formed in the main valve body and communicates with a through hole, a working opening and an air inlet in the main valve body. The air inlet further communicates with a valve opening in the main valve body through an auxiliary hole set. The cavity is internally provided with a main valve element. The main valve element is provided with an open control cavity communicating with the through hole. A pilot-operated valve element is pushed through powering-on and powering-off of the direct current electromagnet, the main valve element can be pushed to move through cooperation with the actions of the high-pressure gas and elastic elements, and accordingly the purpose of gas supply starting and stopping is achieved. The pilot-operated type high-pressure pneumatic electromagnetic switching valve is good in sealing performance, simple in structure, high in work pressure, convenient to machine and suitable for large-scale and industrial manufacturing.

Description

technical field [0001] The invention belongs to the technical field of fluid control valves, and specifically relates to a pilot-operated high-pressure pneumatic electromagnetic switch valve, which can meet the requirements of a high-pressure working environment, and has the characteristics of simple structure, reliable sealing, and fast response speed. Background technique [0002] Pneumatic technology is widely used in agricultural machinery, automation industry, transportation, energy, chemical industry, aerospace, navigation, national defense and military because its working medium is compressed air, which has the advantages of convenient energy acquisition, clean and pollution-free, low cost, and easy operation. and other fields. [0003] In this field, a pneumatic system with a pressure lower than 1MPa is called a low-pressure pneumatic system, a pneumatic system with a pressure between 1MPa and 10MPa is called a medium-pressure pneumatic system, and a pneumatic system...

AI Technical Summary

Problems solved by technology

[0004] Further research shows that low-pressure pneumatic switching valves are increasingly unable to meet the development requirements of high-pressure gas control systems because their rated working pressure is usually less than 1MPa.

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