Dual-material multi-protection sealing mechanism of ball valve

A technology of multiple protection and sealing mechanisms, applied in valve devices, mechanical equipment, engine components, etc., can solve the problems of insignificant effect and high manufacturing cost

Active Publication Date: 2016-07-27
安徽闽之宇阀业科技有限公司
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the smoothness of the spherical surface must be improved, and the hardness of the spherical surface must be improved to s

Method used

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  • Dual-material multi-protection sealing mechanism of ball valve
  • Dual-material multi-protection sealing mechanism of ball valve

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Embodiment Construction

[0016] The present application is not limited by the following examples, and specific implementation manners can be determined according to the technical solutions of the present application and actual conditions.

[0017] Such as figure 1 , 2 As shown, the double-material multiple-protection sealing mechanism of the ball valve includes an annular sealing valve seat 1 and a soft sealing assembly installed on the annular sealing valve seat 1. The soft sealing assembly is provided with a soft sealing surface that matches the surface of the ball 16 of the ball valve. 2. At least one first hard sealing ring 3 is installed on the annular sealing valve seat 1, and the first hard sealing ring 3 is provided with a first hard sealing ring that matches the surface of the ball 16 of the ball valve and is located inside the soft sealing surface 2. Hard sealing surface 4, on the end surface of the first hard sealing ring 3 which is adjacent to the first hard sealing surface 4 and located ...

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Abstract

The invention relates to the technical field of ball valve sealing devices and in particular to a dual-material multi-protection sealing mechanism of a ball valve. The dual-material multi-protection sealing mechanism of the ball valve comprises an annular sealing valve seat and a soft sealing assembly mounted on the annular sealing valve seat. The soft sealing assembly is provided with a soft sealing surface for matching with a spherical surface of the ball valve. The dual-material multi-protection sealing mechanism of the ball valve is characterized in that at least one first rigid sealing ring is mounted on the annular sealing valve seat. Due to implementation of the above technical solution, the dual-material multi-protection sealing mechanism of the ball valve realizes dual-material multi-seal of the ball valve by means of independent designs of the soft sealing assembly and the first rigid sealing ring. By means of complementary effects, the reliability of seal for coping with the case of a medium containing small particles is improved. Each seal has independent integrity, thereby enhancing the replaceability of the present invention. Besides, a first dusting scraper adjacent to a first rigid sealing surface is capable of effectively removing scale and particles covering the spherical surface of the ball valve to ensure formation of an effective sliding seal pair on the soft sealing surface, the rigid sealing surface and the spherical surface of the ball valve, thus improving the sealing property and prolonging the service life.

Description

technical field [0001] The present application relates to the technical field of a ball valve sealing device, in particular to a ball valve dual-material multiple-protection sealing mechanism. Background technique [0002] The ball valve has the advantages of small fluid resistance, fast and convenient switching, good sealing performance in the early stage of use, and easy installation, etc. . However, the existing ball valve sealing structure cannot overcome the fact that small particles in the medium will be squeezed into the sealing surface during the opening and closing process. Once the sealing surface is squeezed, it will cause scaling or damage to the spherical surface. Once the number of openings reaches a certain number, it is easy to form a gap, and the valve cannot be sealed, especially in the transmission pipeline of mixed media such as dusty gas, liquid or solid powder, the valve will be blown out in a short time For a large hole, the solution at this stage is...

Claims

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Application Information

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IPC IPC(8): F16K5/06F16K5/08
CPCF16K5/0663F16K5/08
Inventor 洪德隆洪徳灿赵泽明
Owner 安徽闽之宇阀业科技有限公司
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