A self-tight sealing type electric explosion valve
A technology of self-tight sealing and electric explosion valve, which is applied in the direction of valve details, valve device, valve casing structure, etc., can solve the problems of high product processing technology and cost, easy aging in long-term storage, poor sealing effect, etc., to achieve Simple structure, few parts, good processing technology and economical effect
Inactive Publication Date: 2018-08-21
GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS
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Problems solved by technology
At present, most of the existing electric explosion valves are designed to use polymer O-rings or soft metals for stuffing sealing. The sealing effect is not good, and micro leakage is easy to occur. Long-term storage is easy to age, and the product processing technology and cost requirements are relatively high. high
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[0018] The present invention will be further described below in conjunction with accompanying drawing:
[0019] Such as figure 1 , figure 2 and image 3 As shown, a self-tightening and sealing electric explosion valve of the present invention includes an electric explosion tube 1, a valve body 3, a diaphragm valve core 4 and a sealing piece 8, and a three-stage inner cavity is arranged on the central axis of the valve body 3 , the three-stage inner mold cavity is threaded cavity 9, sealing cavity and chip collecting cavity 5 from top to bottom in turn, electric squib 1 is fixedly connected with threaded cavity 9 through threads, and the gap between the lower end of electric squib 1 and threaded cavity 9 A sealing ring 2 is provided, a membrane rupture valve core 4 is arranged in the sealing chamber, a diaphragm 12 is arranged between the sealing chamber and the chip collection chamber 5, and an air outlet 6 and an air inlet are arranged above and below the diaphragm 12 resp...
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The invention discloses a self-tightening sealing type electric explosion valve which comprises an electric explosion pipe, a valve body, a film breaking valve element and a blocking sheet. A three-section type inner cavity is formed in the central axis of the valve body. The three-section type inner cavity is sequentially divided into a threaded cavity, a sealing cavity and a chip collecting cavity from top to bottom. The electric explosion pipe is fixedly connected with the threaded cavity through a thread. The film breaking valve element is arranged in the sealing cavity. A transverse diaphragm is arranged between the sealing cavity and the chip collecting cavity. An air outlet and an air inlet are formed above and below the transverse diaphragm correspondingly. The lower end of the chip collecting cavity and the valve body are sealed through the blocking sheet. According to the self-tightening sealing type electric explosion valve, an O-shaped sealing ring is not needed, the good sealing performance in the work process and after the work can be obtained by means of the self-tightening sealing effect of metal deformation at the tail end of the film breaking valve element in the movement process, the material is of an all-metal structure, the long-term storage performance is good, meanwhile, the electric explosion valve is simple in structure, parts are few, and the machining technology and economical efficiency are good.
Description
technical field [0001] The invention relates to the technical field of fluid automatic control, in particular to a self-tight sealing type electric explosion valve. Background technique [0002] Electrically Actuated Explosive Valve (Electrically Actuated Explosive Valve) is an important automatic actuator component on spacecraft, weapons and some fluid systems. It plays a key role in controlling fluid in the whole system. On or off. The layout of the electric explosion valve is located between the source gas path and the target gas path. When the system is not working in the profile, the source gas path and the target gas path are closed and not connected; The tube is excited and exploded, forming high-temperature and high-pressure gas, pushing the valve core to accelerate along the passage in the valve body, completing its own mechanical action (fragmentation or cutting the tube), and connecting the source gas path and the target gas path. The electric explosion valve is...
Claims
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IPC IPC(8): F16K31/02F16K27/00
CPCF16K27/00F16K31/02
Inventor 徐勇尹霞蒋旭君陈栋
Owner GENERAL ENG RES INST CHINA ACAD OF ENG PHYSICS