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Seal leakage-free ball valve

A non-leakage, ball valve technology, applied to the valve details, valve device, valve shell structure, etc., can solve the problems of poor sealing of ball valves, affecting the use of ball valves, ball valve fluid leakage, etc., to achieve uniform wear and prolong service life.

Pending Publication Date: 2018-11-13
JIANGSU CHENGGONG VALVE TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In an ultra-low temperature environment, such as -196°C, due to cold shrinkage, the sealing performance of the ball valve will deteriorate, resulting in fluid leakage in the ball valve, which will affect the use of the ball valve

Method used

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  • Seal leakage-free ball valve

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Embodiment Construction

[0023] In order to make the content of the present invention more clearly understood, the present invention will be further described in detail below based on specific embodiments and in conjunction with the accompanying drawings.

[0024] Such as figure 1 As shown, a sealed non-leakage ball valve, which includes:

[0025] A valve body 1, the valve body 1 has a ball valve chamber 11, and the upper end of the valve body 1 is provided with a valve cover 12;

[0026] The ball valve body 2 is rotatably supported in the ball valve cavity 11, the upper end of the ball valve body 2 is connected with an upper valve stem 31 for driving the ball valve body 2 to rotate, and the valve cover 12 is provided with a through A through hole, the upper valve stem 31 passes through the through hole;

[0027] The left valve body 4, the left valve body 4 is adjustable left and right connected to the left end of the valve body 1 through the left connecting assembly, and the left valve body 4 abuts...

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Abstract

The invention discloses a seal leakage-free ball valve comprising a valve body, a ball valve body, a left valve body and a right valve body. The valve body is provided with a ball valve cavity. A valve deck is arranged at the upper end of the valve body. The ball valve body is rotationally supported in the ball valve cavity. The upper end of the ball valve body is connected with an upper valve rodused for driving the ball valve body to rotate. A through hole is formed in the valve deck. The upper valve rod penetrates through the through hole. The left valve body is connected to the left end of the valve body through a left connection assembly and is adjustable in the left-right direction. The left valve body abuts against the peripheral side wall of the ball valve body in a connected manner. The right valve body is connected to the right end of the valve body through a right connection assembly and is adjustable in the left-right direction. The right valve body abuts against the peripheral side wall of the ball valve body in a connected manner. According to the seal leakage-free ball valve, the left valve body and the right valve body can be adjusted in the left-right direction, the use range of the seal leakage-free ball valve is expanded, in an ultralow-temperature environment, the seal performance of the seal leakage-free ball valve can still be guaranteed through adjustment of the positions of the left valve body and the right valve body, and zero leakage is achieved.

Description

technical field [0001] The invention relates to a sealed non-leakage ball valve. Background technique [0002] In an ultra-low temperature environment, such as -196°C, due to cold shrinkage, the sealing performance of the ball valve will be deteriorated, resulting in fluid leakage in the ball valve, which will affect the use of the ball valve. Contents of the invention [0003] The technical problem to be solved by the present invention is to overcome the defects of the prior art and provide a sealed non-leakage ball valve. Adjust the position of the left valve body and the right valve body to ensure its tightness and achieve zero leakage. [0004] In order to solve the above technical problems, the technical solution of the present invention is: a sealed non-leakage ball valve, which includes: [0005] A valve body, the valve body has a ball valve cavity, and the upper end of the valve body is provided with a valve cover; [0006] A ball valve body, the ball valve body...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16K27/06F16K5/06F16K5/08
CPCF16K5/06F16K5/08F16K27/067
Inventor 孙宁陈双河
Owner JIANGSU CHENGGONG VALVE TECH
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