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Ablation-proof sealing device

A sealing device and anti-ablation technology, which is applied in the direction of engine sealing, sleeve/socket connections, pipes/pipe joints/pipe fittings, etc., can solve problems such as seal burnout accidents, prevent ablation, improve stability, Reduce the effect of wind tunnel accidents

Inactive Publication Date: 2008-04-30
INST OF MECHANICS CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

High-pressure and high-temperature gas can easily reach the sealing part through the gap in the joint part of the sealing part and burn the sealing part, causing major accidents

Method used

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  • Ablation-proof sealing device
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Embodiment Construction

[0009] The present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0010] The sealing arrangement of the present invention provides a seal between the immediately adjacent first and second components. According to different applications, the first part and the second part can represent different parts respectively, for example in one of the following embodiments, the first part and the second part respectively represent the detonation section left pipe body 1 and the measuring ring 3, and The sealing device of the present invention provides sealing for the immediately adjacent left tubular body 1 and measuring ring 3 .

[0011] Such as figure 1 As shown, in an exemplary application of the detonation-driven shock wave wind tunnel, a measuring ring 3 is set between the left pipe body 1 of the detonation section and the right pipe body 2 of the detonation section, and the left pipe body 1 is fixed by a...

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Abstract

The invention discloses antiseize sealing arrangement, comprising closely the first and second elements and sealing unit supporting mounted on the connecting part of the first and second elements. Each of the first and second elements has a channel for gas, and a ring slot mounted on said connecting part has a baffle ring and surrounds said channels and more close to the channel than the sealing unit. One part of this ring slot is in the first element while the left in another one. The inventive sealing device can prevent seizing effectively, improve the stability of operation, and reduce the accident of wind tunnel significantly.

Description

technical field [0001] The invention relates to a sealing device, in particular to an anti-ablation sealing device more suitable for use in a detonation driven shock wave wind tunnel. Background technique [0002] In order to maintain the sealing performance of the wind tunnel, sealing measures need to be taken between two adjacent components. For example, seals such as O-rings are usually provided at the junction between adjacent pipe bodies or between the pipe body and the measuring ring. [0003] Compared with the general wind tunnel, the detonation-driven shock tunnel uses the high-temperature and high-pressure gas generated after the detonation of combustible gas as the gas source of the wind tunnel. The high-pressure and high-temperature gas can easily reach the sealing part through the gap of the joint part of the sealing part and burn the sealing part, causing a major accident. Contents of the invention [0004] The object of the present invention is to provide a...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F16J15/02F16L21/02
Inventor 林建民
Owner INST OF MECHANICS CHINESE ACAD OF SCI