A Double Seal Regulating Valve
A double-sealing, regulating valve technology, applied in the field of regulating valves, can solve the problems of poor sealing of regulating valves, achieve the effects of enhancing strength, avoiding explosions, and increasing sealing specific pressure
Active Publication Date: 2020-12-25
浙江青合工业科技有限公司
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Problems solved by technology
[0003] The purpose of the present invention is to provide a double-seal regulating valve, which has the advantages of double sealing and solves the problem of poor sealing of existing regulating valves
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[0016] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0017] see Figure 1-3 , a double-seal regulating valve, including a valve body 1, the bottom of the inner cavity of the valve body 1 is connected to an inlet 2, the right side of the inner cavity of the valve body 1 is connected to an outlet 3, and the top of the inner cavity of the valve body 1 is There is a guide sleeve 16 with a circular tubular bottom, the left part of the inner cavity of the guide sleeve 16 is provided with a pressure regulating device, ...
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The invention discloses a dual-sealing adjusting valve. The dual-sealing adjusting valve comprises a valve body. An inner cavity of the valve body is provided with an inlet and an outlet, a guide sleeve with the bottom in a circular pipe shape is arranged on the top of the inner cavity of the valve body, a pressure adjusting device is arranged on the left portion of an inner cavity of the guide sleeve, a valve clack is arranged on the lower portion of the inner cavity of the guide sleeve, upper and lower guide structures are formed by the outer circle of the valve clack and the inner wall of the guide sleeve, a piston cavity is formed in the portion, above the valve clack and on the right side of the pressure adjusting valve, of the inner cavity of the guide sleeve, a pressurizing hole isformed below the pressure adjusting device, the left side and the right side of the pressure adjusting device communicate with the external atmosphere and the piston cavity separately, the pressure adjusting device can move leftwards or rightwards according to the pressure of a medium in the piston cavity, and a backflow hole communicating with the piston cavity and the outlet is formed in the topof the right side of the piston cavity. By means of the piston cavity, the pressurizing hole, a pressurizing cavity, the pressure adjusting device, the valve clack, an outer valve seat, a bellevillespring, an inner valve seat, the guide sleeve and the backflow hole, the adjusting valve has the beneficial effect of dual sealing when used.
Description
technical field [0001] The invention relates to the technical field of regulating valves, in particular to a double-seal regulating valve. Background technique [0002] In the automatic control of modern factories, the regulating valve plays a very important role. The production of these factories depends on the correct distribution and control of the flowing medium. When the user uses the regulating valve, the high-pressure medium is compressed into a low pressure through the regulating valve. The medium is then used in the process pipeline. When the process pipeline is suspended, the medium pressure at the outlet of the regulating valve will continue to rise, and when the medium pressure rises to a certain value, the disc sealing surface of the regulating valve and the valve seat will The sealing surfaces are in contact with each other. Due to the small sealing specific pressure, the sealing of the regulating valve is poor, and the medium on the inlet side of the regulatin...
Claims
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IPC IPC(8): F16K17/26F16K27/02
CPCF16K17/26F16K27/02
Inventor 郑子柳
Owner 浙江青合工业科技有限公司