Seals against existing high-pressure media in the annulus

A technology of high-pressure medium and annular space, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problem of easy fracture of the main seal and achieve the effect of preventing fracture

Active Publication Date: 2019-05-03
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

[0009] Another object of the present application is to solve the problem that the main seal is easily broken at the embedded place

Method used

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  • Seals against existing high-pressure media in the annulus
  • Seals against existing high-pressure media in the annulus
  • Seals against existing high-pressure media in the annulus

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0053] The terms "longitudinal", "transverse", and "upward" described below are preceded by image 3 as a benchmark.

[0054] An auxiliary seal 10 for sealing the annular space 40 , the hardness of the auxiliary seal 10 is greater than that of the main seal 20 , has elasticity, and is ring-shaped. Both the auxiliary seal 10 and the main seal 20 are sleeved on the second to-be-sealed member 32, and are placed in the longitudinal direction extending from the outer first to-be-sealed member 31 and the inner second to-be-sealed member 32. In the annular space 40, and the auxiliary seal 10 and the main seal 20 interfere with each other in the longitudinal direction and are placed on the pressure receiving member 50, use the pressure applicator 60 to apply a longitudinal force to the auxiliary seal 10 and the main seal 20. sealing pressure, the auxiliary seal 10 deforms laterally and interferes with the first member 31 to be sealed and the second member 32 to be sealed respectively...

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Abstract

The invention relates to the field of sealing, in particular to an auxiliary sealing element and sealing method for sealing an annulus space. The hardness of the auxiliary sealing element is larger than the hardness of a main sealing element and has elasticity. When the auxiliary sealing element and the main sealing element collide with each other and are placed in the annulus space, longitudinal sealing pressure is exerted on the auxiliary sealing element and the main sealing element through a pressure exerting piece, when the main sealing element deforms in the transverse direction and is sealed together with a first to-be-sealed element and a second sealing element, the auxiliary sealing element deforms in the transverse direction and collides with the first to-be-sealed element and the second sealing element. Because the hardness of the auxiliary sealing element is larger than the hardness of the main sealing element, the transverse deformation of the main sealing element is larger than the transverse deformation of the auxiliary sealing element under the effect of the sealing pressure. The auxiliary sealing element is arranged, movement of the main sealing element is reduced or stopped, and the problem that because of longitudinal pressure, the main sealing element cannot conduct sealing in the sealing process or after sealing is prevented.

Description

technical field [0001] The present application relates to the field of sealing, in particular to a sealing element for sealing the existing high-pressure medium in the annular space. Background technique [0002] The pressure bearing part is fixed on the inner wall of the first part to be sealed, or fixed on the outer wall of the second part to be sealed. Take the pressure bearing part fixed on the inner wall of the first part to be sealed as an example, such as figure 1 As shown, when sealing, the inner and outer sides of the main seal need to seal the inner wall of the first part to be sealed and the outer wall of the second part to be sealed; after sealing, the inner edge of the main seal is at a position relative to the middle part. relatively free state. During the sealing process, if the longitudinal pressure on the upper and lower sides of the inner edge of the main seal is different, for example, when there is fluid movement inside the first to-be-sealed part, the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/38
CPCF16J15/38
Inventor 宋炜隆学武
Owner 华控密封科技(苏州)有限公司
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