Special pneumatic control valve for chlorine
A pneumatic control valve and chlorine gas technology, applied in the field of globe valve and control valve, can solve the problems of slow adjustment speed, laborious operation, and inaccurate adjustment data, etc., to achieve the effect of precise adjustment, elimination of weak seal, and difficulty in leakage.
Inactive Publication Date: 2014-07-30
江苏明江阀业有限公司
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Problems solved by technology
[0003] For the transportation requirements of some special media, such as corrosive chlorine gas and liquid chlorine medium, the patent application number: CN103671984A provides a manual chlorine gas regulating valve, the adjustment speed is slow, the adjustment data is not accurate enough, and the operation is laborious
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[0018] The present invention is a special pneumatic control valve for chlorine gas, which includes a valve body 1, a valve cover 7, and an actuator 13. For the strong corrosion characteristics of chlorine gas and liquid chlorine, the material of the valve body 1 is made of corrosion-resistant steel, that is, carbon steel is added with anti-corrosion corrosion of alloying elements. The valve body 1 includes a medium inlet 12 and a medium outlet 2. The axis lines of the medium inlet and outlet are the same. The connecting flange of the medium inlet and outlet adopts a tenon-groove sealing structure. Even in the case of pipeline pressure fluctuations, It can also ensure the reliability of the middle flange seal.
[0019] A valve seat 4 is provided between the medium inlet 12 and the medium outlet 2, the valve seat 4 is located in the inner cavity of the valve body 1, and the inner ring of the valve seat 4 is provided with a sealing ring 3, and the sealing ring 3. Compression-mol...
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The invention discloses a special pneumatic control valve for chlorine. The technical scheme is realized as follows: the special pneumatic control valve for chlorine comprises a valve body, a valve cover and an actuator, wherein the valve body comprises a medium inlet and a medium outlet, and a valve seat is arranged between the medium inlet and the medium outlet, and is positioned in a cavity inside the valve body; the inner ring of the valve seat is provided with a sealing ring, and a valve cover is arranged at the upper end of the valve body; a gasket is arranged at a joint of the valve body and the valve cover, and a valve stem vertically penetrates through the valve cover; the lower end of the valve stem is connected with a valve clack, and the upper end of the valve stem is provided with an actuator; a valve clack cover is arranged on the valve clack, and a sealing filler is arranged in a gap between the valve stem and the valve cover; a filler gland is arranged above the sealing filler. The special pneumatic control valve provided by the invention has the beneficial effects of simple and compact structure, stable sealing performance, safety and reliability, strong corrosion resistance, easiness and convenience in operation, and precise adjustment.
Description
technical field [0001] The invention relates to the technical field of regulating valves and shut-off valves, in particular to a pneumatic regulating valve dedicated to chlorine gas. Background technique [0002] Regulating valves play a very important role in the automatic control of modern factories whose production depends on the correct distribution and control of the flowing medium. Whether these controls are energy exchange, pressure reduction or simple container filling, some final control elements are required to complete. A regulating valve acts as a variable resistance in a pipeline. It changes the turbulence of the process fluid or provides a pressure drop in the case of laminar flow. [0003] For the transportation requirements of some special media, such as corrosive chlorine gas and liquid chlorine medium, the patent application number: CN103671984A provides a manual chlorine gas regulating valve, which has slow adjustment speed, inaccurate adjustment data, a...
Claims
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IPC IPC(8): F16K31/12F16K1/38F16K1/46F16K41/02F16K27/02
CPCF16K31/12F16K1/38F16K1/46F16K27/02F16K41/02
Inventor 陶永红袁国华
Owner 江苏明江阀业有限公司