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Integrated high-temperature high-pressure metal seal ball valve

A metal sealing, high temperature and high pressure technology, used in shaft seals, valve details, valve devices, etc., can solve the problems of easy leakage, erosion, cavitation, abrasion, and unreasonable structure of valve body and stem seals, so as to improve product quality. Accuracy, reduced friction, reduced effect of structural design

Inactive Publication Date: 2012-01-25
浙江宏明阀门有限公司
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  • Abstract
  • Description
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  • Application Information

AI Technical Summary

Problems solved by technology

[0002] At present, our valve industry has achieved rapid development, but the existing valves similar to the present invention have the following problems due to their unreasonable structure: 1. The valve core ball and valve seat sealing materials are made of hard chrome, alloy steel and hard Alloy materials are susceptible to erosion, cavitation, and scratches under high temperature, high pressure, and high particle conditions, resulting in seal failure; 2. The valve seat and valve body are set separately, which adds a seal between the valve seat and the valve body. It is very easy to cause leakage of the valve; 3. The seal between the valve body, auxiliary valve body and valve stem is easy to leak

Method used

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  • Integrated high-temperature high-pressure metal seal ball valve
  • Integrated high-temperature high-pressure metal seal ball valve
  • Integrated high-temperature high-pressure metal seal ball valve

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Embodiment Construction

[0011] Such as figure 1 , figure 2 , image 3 and Figure 4 As shown, the integrated high-temperature and high-pressure metal-sealed ball valve includes a valve stem 1, a valve body 2, a valve seat 3 and a valve core ball 4. In the embodiment of the present invention, the valve seat 3 is integrated with the valve body 2, and The integral connection between the valve seat 3 and the valve body 2 is horizontally arranged as a corrugated structure 5. By adopting the above scheme, a part of the valve seat on the valve is canceled, the structural design of the seal is reduced, the sealing reliability is ensured, and the product accuracy is improved. Effective Improve the sealing performance and service life of the product. In addition, this structure ensures the self-compensation of the valve after alternate deformation under thermal stress cycle, and solves the necessary specific pressure increase of the sealing surface at high temperature, so that the ball valve can be self-com...

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Abstract

The invention relates to a valve, in particular to an integrated high-temperature high-pressure metal seal ball valve. The invention adopts the following scheme: the integrated high-temperature high-pressure metal seal ball valve comprising a valve rod, a valve body, a valve seat and a valve core ball, characterized in that the valve seat is connected to the valve core ball crossing an auxiliary body, two groups of ring chambers are arranged between the valve rod and the auxiliary valve body, wherein the ring chamber close to the valve core ball side is provided with tungsten carbide metal pads, and the other chamber is covered with an executer platform, metal ducts are arranged between the executer platform and the valve rod, the chamber is provided with a ceramic ring pad, a carbon fiber weaving ring pad, a ceramic ring pad, a graphite, a carbon fiber weaving ring pad, a pressing block and a disc spring. By adopting the above scheme, the product has reasonable structure, flexible opening and closing, high efficiency and good seal effect.

Description

technical field [0001] The invention relates to a valve, in particular to a high temperature and high pressure metal sealing ball valve. Background technique [0002] At present, our valve industry has achieved rapid development, but the existing valves similar to the present invention have the following problems due to their unreasonable structure: 1. The valve core ball and valve seat sealing materials are made of hard chrome, alloy steel and hard Alloy materials are susceptible to erosion, cavitation, and scratches under high temperature, high pressure, and high particle conditions, resulting in seal failure; 2. The valve seat and valve body are set separately, which adds a seal between the valve seat and the valve body. It is very easy to cause leakage of the valve; 3, the seal between the valve body, the auxiliary valve body and the valve stem is easy to leak. Contents of the invention [0003] The invention overcomes the defects of the prior art and provides a novel...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16K5/06F16K5/08F16K5/20F16K27/06F16K41/02
Inventor 姜明
Owner 浙江宏明阀门有限公司
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