Special oxygen stop valve for anti-explosion chamber
A shut-off valve and oxygen technology, which is applied in the field of shut-off valves and oxygen shut-off valves for explosion-proof chambers, to achieve the effects of improving safe use factors, consistent effects, and avoiding combustion
Pending Publication Date: 2020-02-28
LANZHOU HIGH PRESSURE VALVE
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Problems solved by technology
Due to the strong combustion-supporting characteristics of oxygen and the analysis and conclusion of the experience and lessons of the reasons for the combustion and explosion of oxygen pipelines and valves, some users require oxygen shut-off valves with large diameters, high pressure or special sealing requirements to be installed in the isolation wall or explosion-proof valve room to improve the safety of oxygen pipelines Operating coefficient, if the remote control oxygen shut-off valve is selected, the operation safety is the best, but in practical applications, it is advocated to manufacture cost-effective, safe and reliable products
Method used
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Embodiment Construction
[0018] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the drawings in the embodiments of the present invention.
[0019] see figure 1 with figure 2 , an oxygen stop valve for explosion-proof chambers, including the valve body 1 and the main disc 2 adopting conical sealing, the main disc 2 and the pilot disc 3 adopting the conical sealing form; the pilot disc 3 and the valve stem 4 adopting T-shaped Groove connection, valve disc cover 5 and main valve disc 2 are connected by thread, and the two symmetrical sides of main valve disc 2 are respectively provided with screws d6 to prevent loosening of threaded connection. The middle opening of the valve body 1 and the bonnet 8 is sealed with an octagonal gasket 7; the bonnet 8 and the support 9 are connected by the first thread, and the second ring weld is strengthened. Superimposed use ensures firm and reliable connection; the valve stem 4 ...
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A special oxygen stop valve for an anti-explosion chamber comprises a valve body, a valve clack and a valve rod. The valve clack comprises a main valve clack and a piloted valve clack. A circulation port is formed in the bottom of the main valve clack, the side wall is provided with a balance hole, and the outer edge of the bottom of the main valve clack and the conical surface of a medium via hole in the valve body are sealed. The piloted valve clack is arranged on an inner cavity of the main valve clack, the bottom of the piloted valve clack and the conical surface of the circulation port inthe bottom of the main valve clack are sealed, and the other end of the piloted valve clack and the valve rod are connected through a T-shaped groove. The upper end of the main valve clack is in threaded connection with a valve clack cover, and the valve rod adaptively penetrates out of the valve clack cover. The main valve clack and the piloted valve clack are in clearance fit. A pressure balance valve clack structure is adopted in the special oxygen stop valve, the valve opening force is reduced, and the safety usage factor of an oxygen pipeline valve is improved.
Description
technical field [0001] The invention belongs to the technical field of valve manufacturing, and relates to a shut-off valve applied to an oxygen pipeline, in particular to an oxygen shut-off valve for an explosion-proof chamber. Background technique [0002] Oxygen pipeline valves are high-risk valves. Oxygen valves cannot be installed near open flames and oil pollution, and should be installed in areas where no sparks are generated; usually, it is stipulated that an independent valve room or protective wall should be installed for the oxygen regulating valve group . Due to the strong combustion-supporting characteristics of oxygen and the analysis and conclusion of the experience and lessons of the reasons for the combustion and explosion of oxygen pipelines and valves, some users require oxygen shut-off valves with large diameters, high pressure or special sealing requirements to be installed in the isolation wall or explosion-proof valve room to improve the safety of oxyg...
Claims
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Patent Timeline
Login to View More IPC IPC(8): F16K1/00F16K1/38F16K1/48F16K31/46F16K31/53F16K39/02
CPCF16K1/00F16K1/38F16K1/482F16K31/46F16K31/53F16K39/024
Inventor 陆钰珍张建宝王军刚陈文鑫郝宏达范相辉尚培元李善芳
Owner LANZHOU HIGH PRESSURE VALVE