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Super-high-temperature plug valve

A plug valve, ultra-high temperature technology, applied in the direction of the plug including the cut-off device, valve details, valve device, etc., can solve the problem of valve switch function failure and other problems

Active Publication Date: 2018-08-10
JIANGSU SHENGTAI VALVE CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Therefore the technical problem to be solved by the present invention is to overcome the defect of the switching function failure of the valve under ultra-high temperature conditions in the prior art

Method used

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Embodiment Construction

[0021] The technical solutions of the present invention will be clearly and completely described below in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, rather than all of them. 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.

[0022] like figure 1 As shown, an ultra-high temperature plug valve of the present invention includes a valve body 1, a cock 2, a rotating rod 5, and a ball 8. A first through hole 23 is provided through the valve body 1, and the inner edge of the valve body 1 is A cylindrical cavity 3 is arranged radially, and the cavity 3 communicates with the first through hole 23. One end of the cavity 3 extends into the bottom wall of the valve body 1, and the other end of the cavity 3 runs through the The top wall o...

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Abstract

The invention discloses a super-high-temperature plug valve. The super-high-temperature plug valve comprises a valve body, a plug, a rotary rod and a ball. A first through hole is formed in the valvebody in a penetrating mode, a cylindrical cavity is formed in the valve body in the radial direction, and the cavity communicates with the first through hole. One end of the cavity extends into the bottom wall of the valve body, the other end of the cavity penetrates through the top wall of the valve body, and the plug is mounted in the cavity in a transitional fit mode. A second through hole is formed in the plug in a penetrating mode in the radial direction, the rotary rod is arranged in the cavity, one end of the rotary rod is fixedly connected with the plug, and the other end of the rotaryrod extends into the valve body. A first annular groove with an opening facing the plug is formed in the contact position of the valve body and the plug, a second annular groove matched with the first annular groove is formed in the plug, and the ball is mounted in the space formed by oppositely forming the first annular groove and the second annular groove. The super-high-temperature plug valvecan work under the super-high-temperature condition.

Description

technical field [0001] The invention belongs to the technical field of valves, in particular to an ultra-high temperature plug valve. Background technique [0002] The plug valve is a fast-switching straight-through valve, which uses a plug body with a through hole as the opening and closing member. The plug body rotates with the valve stem to realize the opening and closing action. The plug body of the plug valve is mostly a cone (also a cylinder), which cooperates with the conical hole surface of the valve body to form a sealing pair. Plug valves are widely used in oil field exploitation, transportation and refining equipment, and are also widely used in petrochemical, chemical, gas, natural gas, liquefied petroleum gas, HVAC industries and general industries. When transporting some ultra-high temperature liquids, the contact surface between the plug body and the valve body becomes thermally expanded and deformed under ultra-high temperature conditions. After the contact...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K5/04F16K5/08F16K27/06
CPCF16K5/0442F16K5/08F16K27/065
Inventor 严涛赵成志姜风春姜晨史可任严珊珊王玥王金鹤孙毓严珍珍
Owner JIANGSU SHENGTAI VALVE CO LTD
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