Seals for sealing high-pressure media in cylindrical spaces

A technology of high-pressure medium and seals, which is applied in the direction of engine seals, engine components, mechanical equipment, etc., can solve the problems of main seals being easy to break, and achieve the effect of preventing breakage

Active Publication Date: 2019-03-29
华控密封科技(苏州)有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] Another purpose of this application is to solve the problem that the main seal is easily broken at the embedded place

Method used

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  • Seals for sealing high-pressure media in cylindrical spaces
  • Seals for sealing high-pressure media in cylindrical spaces
  • Seals for sealing high-pressure media in cylindrical spaces

Examples

Experimental program
Comparison scheme
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Embodiment Construction

[0051] The terms "longitudinal", "transverse", and "upward" described below are preceded by image 3 as a benchmark.

[0052]An auxiliary seal 10 for sealing a cylindrical space 40, the hardness of the auxiliary seal 10 is greater than that of the main seal 20 and has elasticity. When the auxiliary seal 10 and the main seal 20 are both placed in the cylindrical space 40 extending in the longitudinal direction formed by the first member to be sealed 30, the pressure applying member 60 and the pressure receiving member 50, and the auxiliary seal When 10 and the main seal 20 interfere with each other in the longitudinal direction and are placed on the pressure-bearing member 50, the auxiliary seal 10 is defined as using the pressure applicator 60 to apply longitudinal sealing pressure to the auxiliary seal 10 and the main seal 20, When the primary seal 20 deforms laterally and seals against the first member 30 to be sealed, the auxiliary seal 10 deforms laterally and interferes ...

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Abstract

The invention relates to the field of sealing, and particularly relates to an auxiliary sealing element for sealing a dangling space and a sealing method. The hardness of the auxiliary sealing element is greater than that of a main sealing element and the auxiliary sealing element has elasticity; when the auxiliary sealing element collides with the main sealing element and is put into the dangling space and put on a pressure-bearing part, and the directions from the main sealing element to the auxiliary sealing element and longitudinal pressure are the same, longitudinal sealing pressure is applied to the auxiliary sealing element and the main sealing element by using a pressure-applying part, and the auxiliary sealing element transversely deforms and collides with a first to-be-sealed part when the main sealing element transversely deforms and is sealed with the first to-be-sealed part. The hardness of the auxiliary sealing element is greater than that of the main sealing element, so that transverse deformation of the main sealing element is greater than that of the auxiliary sealing element under the action of sealing pressure. Movement of the main sealing element is reduced or blocked through the arranged auxiliary sealing element, and the problem that the main sealing element cannot be sealed due to longitudinal pressure in the sealing process or after sealing is solved.

Description

technical field [0001] The present application relates to the field of sealing, in particular to a sealing element for sealing high-pressure medium in a cylindrical space. Background technique [0002] Such as figure 1 As shown, when sealing, the side wall of the main sealing part needs to seal the inner wall of the first part to be sealed; after sealing, the edge of the main sealing part is in a relatively free state relative to the middle part. During the sealing process, if the longitudinal pressure on the upper and lower sides of the edge of the main seal is different, for example, when there is fluid movement inside the first part to be sealed, the edge of the main seal is on one side during the sealing process. The other side must be subjected to greater pressure, causing the edge of the main seal to slide in the direction of fluid movement, resulting in failure to complete the seal failure. After sealing, such as figure 2 As shown, if high-pressure gas or high-pre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/44
CPCF16J15/002F16J15/44
Inventor 宋炜隆学武
Owner 华控密封科技(苏州)有限公司
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