Quick opening mechanism of quick opening high-temperature spherical sealing stop valve

A technology of spherical sealing and cut-off valves, which is applied in shaft seals, valve casing structures, valve heating/cooling devices, etc., can solve the problems that cut-off valves cannot solve high pressure problems and affect service life, and achieve good pressure relief and diversion effects , good work stability

Active Publication Date: 2021-02-12
ZHEJIANG PETROCHEMICAL VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Existing pneumatic, hydraulic, electromagnetic, explosive and other types of cut-off valves cannot solve the high pressure problem generated during cut-off, which has always affected the service life of the valve

Method used

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  • Quick opening mechanism of quick opening high-temperature spherical sealing stop valve
  • Quick opening mechanism of quick opening high-temperature spherical sealing stop valve
  • Quick opening mechanism of quick opening high-temperature spherical sealing stop valve

Examples

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Effect test

Embodiment Construction

[0031] Embodiments of the present invention will be further described below in conjunction with accompanying drawings:

[0032] As shown in the figure, a quick-opening mechanism for a quick-opening high-temperature spherical sealing cut-off valve includes a valve body 1, a valve seat 2, a valve cover 3, a valve disc 4, a valve stem 5 and a driving device 6 for driving the valve stem 5 to rotate , characterized in that: the valve rod 5 is coaxially arranged and fixedly connected with the valve disc 4, the valve body 1 and the valve cover 3 are provided with an exhaust channel for gas circulation, and the valve disc 4 and the valve seat 2 Located on the path of the exhaust passage, the valve seat 2 is fixedly installed in the valve body 1 and is provided with a first through hole 21 communicating with the exhaust passage. The second through hole 41 corresponding to the above first through hole 21, the exhaust passage has a function of opening when the valve disc 4 rotates and th...

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PUM

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Abstract

The invention discloses a quick opening mechanism of a quick opening high-temperature spherical sealing stop valve, and relates to the field of valves. The quick opening mechanism comprises a valve body, a valve base, a valve cover, a valve clack, a valve rod and a driving device for driving the valve rod to rotate, wherein the valve rod and the valve clack are coaxially arranged and fixedly connected; the valve body and the valve cover are provided with exhaust channels for circulating gas; the valve clack and the valve base are positioned on paths of the exhaust channels; the valve base is fixedly mounted in the valve body, and is provided with a first through hole communicated with the exhaust channels; the valve clack is provided with a second through hole corresponding to the first through hole; and the exhaust channels have three states of opening when the first through hole is overlapped with the second through hole during rotating of the valve clack, half opening when part of the first through hole is overlapped with the second through hole and closing when the first through hole is not overlapped with the second through hole. The quick opening mechanism has the advantage of good pressure relief and shunting effects.

Description

technical field [0001] The invention relates to the field of valves, in particular to a quick-opening mechanism for a quick-opening high-temperature spherical sealing cut-off valve. Background technique [0002] The existing high-temperature cut-off valve is used in the scene where the medium is high-temperature argon, the medium temperature is 730°C, and the medium pressure is 3MPa. According to the valve pressure-temperature level comparison, it is equivalent to DN80, Class1500. Existing pneumatic, hydraulic, electromagnetic, explosive and other types of cut-off valves cannot solve the high pressure problem generated during cut-off, which has always affected the service life of this problem. Contents of the invention [0003] In order to overcome the shortcomings of the background technology, the present invention provides a quick-opening mechanism for a quick-opening high-temperature spherical sealing shut-off valve with good pressure relief and flow diversion effects. ...

Claims

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Application Information

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IPC IPC(8): F16K11/074F16K3/16F16K3/314F16K3/36F16K25/00F16K27/04F16K41/04F16K49/00F16K37/00
CPCF16K11/074F16K3/16F16K3/314F16K3/36F16K25/005F16K27/044F16K41/04F16K49/00F16K37/0008
Inventor 金虎王忠渊项光洪罗建康王忠淼刘贤德黄家巧章苗苗储嵩李华贵
Owner ZHEJIANG PETROCHEMICAL VALVE CO LTD
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