Ultra-high pressure protection device for high-pressure explosion-proof solenoid valve

Abstract

The invention discloses a mechanical extra-high pressure protection device for a high-pressure explosion-proof electromagnetic valve. The device comprises a protective valve body, a protective valve core and a protective valve cover, wherein the bottom of the protective valve body is arranged on a joint body I of the electromagnetic valve through a connecting body III; a positioning pin is arranged in the connecting body III; an ejector rod is arranged on the positioning pin; a groove is formed on a part, which corresponds to the upper end of the ejector rod, on the protective valve body; theupper end of the ejector rod is extended into the groove; the lower end of the ejector rod is provided with a poking rod; a gap is formed between the ejector rod and the connecting body III; a boss is formed on the protective valve core; a cavity I is formed between the left end of the boss and the protective valve cover; a cavity II is formed between the right end of the boss and the protective valve body; the area of the left end face of the boss is larger than that of the right end face of the boss; a plurality of protection springs are arranged in the protective valve cover; one end of each protection spring is provided with a ball; and the balls are contacted with the groove on the protective valve core. By the protection device, the function of closing the electromagnetic valve can be realized when the electromagnetic valve is positioned at extra-high pressure, so that the safe operation of the electromagnetic valve is guaranteed.

Description

technical field [0001] The invention relates to a protection device, in particular to an ultra-high pressure protection device for a high-pressure explosion-proof solenoid valve. Background technique [0002] With the vigorous promotion and application of natural gas in my country, the market demand for pipeline transmission control components has increased rapidly. High-pressure explosion-proof solenoid valves have been widely used as important pipeline transmission control components. However, most of the existing solenoid valves use remote data. Transmission control, when the remote transmission is not in place, the remote transmission control fails, and the power supply is insufficient, the safety and reliability of the high-pressure explosion-proof solenoid valve will be greatly reduced, especially when the gas pressure in the solenoid valve is too high or too low , causing safety problems in use, the market urgently needs a protection device that can close the solenoid v...

AI Technical Summary

Problems solved by technology

[0002] With the vigorous promotion and application of natural gas in my country, the market demand for pipeline transmission control components has increased rapidly. High-pressure explosion-proof solenoid valves have been widely used as important pipeline transmission control components. However, most of the existing solenoid valves use remote data. Transmission control, when the remote transmission is not in place, the remote transmission control fails, and the power supply is insufficient, the safety and reliability of the high-pressure explosion-proof solenoid valve will be greatly reduced, especially when the gas pressure in the solenoid valve is too high or too low , causing safety problems in use, the market urgently needs a protection device that can close the solenoid valve under the ultra-high pressure of the solenoid valve, and then protect the solenoid valve, which can not only prevent safety accidents, but also protect Gas source

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