Low pressure combustible gas double drives valve
A low-pressure valve technology, which is applied in the field of low-pressure combustible gas dual-drive valves, can solve the problems of unusability, and achieve the effects of simple structure, guaranteed sealing effect, and convenient use
Inactive Publication Date: 2008-03-12
潘吉君
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Problems solved by technology
If it is used on the pipeline of low-pressure combustible gas, it cannot be used when there is no power configuration
Method used
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[0010] The working process of the low-pressure solenoid valve will be explained in conjunction with accompanying drawings 1 and 2. Instructions will be made respectively according to the working process when there is power distribution and the working process when there is no power distribution.
[0011] Working process when there is power rationing:
[0012] When in use, first open the main valve 2 and turn on the electricity. At this time, the electromagnet 7 generates a magnetic force to pull the valve core 4 to the left to compress the return spring 6. At this time, the position of the valve cavity 9 can connect the inlet pipe 1 and the outlet pipe 8, and the gas It enters the gas head and can be ignited and burned.
[0013] When stop using, stop energizing, electromagnet 7 loses magnetic force, back-moving spring 6 bounces back automatically and spool 4 is pushed to the right, and valve chamber 9 returns to original position, and the combustible gas in the outlet pipe 8 ...
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The invention relates to a low-pressure combustible gas double-drive valve which comprises a gas inlet pipe, a main valve, a valve core, an electromagnet, a gas outlet pipe, a membrane box, a membrane box front chamber, a membrane box back chamber and a membrane; wherein the gas inlet pipe is connected with the inlet of the main valve, the gas outlet pipe of the main valve is connected with a valve body and a gas inlet branch pipe, the gas inlet branch pipe is connected with the inlet of an auxiliary valve, and the membrane box is divided into the membrane box front chamber and the membrane box back chamber by the membrane; the outlet of the auxiliary valve is communicated with the gas outlet pipe and the membrane box front chamber, the middle of the membrane box is lengthways embedded with the membrane, one end of the valve core is connected with the membrane on the center position of the membrane box back chamber, and the other end of the valve core is wound with a restoring spring and stretches into a center chamber of the electromagnet; the middle section of the valve core is provided with a ring-shaped valve chamber, the two ends of the valve chamber are provided with two sealing rings, the slide of the valve core can make the outlet pipe of the main valve communicated with the gas outlet pipe of the valve body, and a gas hole in the membrane box back chamber is communicated with the atmosphere. The invention can be used in the electric drive and the gas drive. The invention has the advantages of the simple structure, the convenient use and the safety and reliability.
Description
technical field [0001] The invention relates to a low-pressure combustible gas dual-drive valve. Background technique [0002] Most of the solenoid valves currently on the market are suitable for medium and high pressure liquid and gas delivery pipelines. If it is used on the pipeline of low-pressure combustible gas, it cannot be used when there is no power configuration. For example, the main component of combustible gas produced by biogas digesters in rural areas is methane, and the pressure is only 30-40cm water column. Especially in remote rural areas, where the power supply has not been popularized, it cannot be used. Contents of the invention [0003] The invention proposes a low-pressure combustible gas dual-drive valve used in pipelines for transporting low-pressure combustible gas, especially suitable for pipelines in rural biogas pits, which can effectively prevent gas backfire and biogas pit explosions. [0004] The solution adopted by the present invention t...
Claims
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IPC IPC(8): F16K3/26F16K31/126F16K31/06
Inventor 潘吉君
Owner 潘吉君