Pilot-operated type electromagnetic valve in bottle opening valve

Abstract

The invention discloses a pilot-operated type electromagnetic valve in a bottle opening valve. The upper segment of a valve body is connected with a valve cover with a sealing structure, a sliding channel and a connecting through hole are formed in the top face of the valve body, a sliding valve element is arranged in the sliding channel in a penetrating manner, a connecting hole and a pilot holeare formed in the top face of the sliding valve element, a fixed iron core abuts against the valve cover, the lower segment of the fixed iron core is fixed to the top of the sliding channel through aconnecting sleeve, an electromagnetic coil is arranged in the fixed iron core, the connecting sleeve and the valve cover, a movable iron core composed of a first movable iron core and a second movableiron core is arranged in the connecting sleeve, the second movable iron core is inserted into the connecting hole, the top of a sleeve is clamped and embedded in an annular clamping groove in the side wall of the first movable iron core through a clamping plate, the bottom of the sleeve is blocked below a shaft ring of the top end of the sliding valve element through an annular baffle, a spring is arranged between the fixed iron core and the movable iron core, and multiple small holes used for penetrating through the side wall of the bottom of the connecting hole are formed in the side wall of the sliding valve element at intervals. The structure is simple and compact, and seal performance is good.

Description

technical field [0001] The invention relates to the technical field of hydrogen storage, in particular to a pilot solenoid valve in a bottle mouth valve. Background technique [0002] The hydrogen storage method adopts high-pressure hydrogen storage in hydrogen storage cylinders. The reasonable and effective use of high-pressure hydrogen in hydrogen storage cylinders is inseparable from the bottleneck valve. The high-pressure hydrogen in hydrogen storage cylinders must be processed by the bottleneck valve and subsequent systems before it can be supplied The fuel cell, therefore the bottle mouth valve is an extremely important part in the hydrogen supply system, its performance directly affects the normal operation of the fuel cell, the efficiency of the hydrogen supply system, and the safety performance of the hydrogen supply system. [0003] The pilot-operated solenoid valve in the common bottle mouth valves in the market has complex structure, complex processing technology...

AI Technical Summary

Problems solved by technology

[0003] The pilot-operated solenoid valve in the common bottle mouth valve in the market has complex structure, complicated processing technology, high production cost, large volume, and is not suitable for small bottle mouth valves. In addition, there are many defects such as many leakage points and poor sealing performance.

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