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Flexible graphite metal wave tooth composite gasket sealing structure

A technology of flexible graphite and sealing structure, which is applied in the direction of engine sealing, flange connection, pipe/pipe joint/pipe fitting, etc. It can solve the problems of non-redundant performance sealing quantitative control, short sealing leakage channel, etc., and achieve sealing leakage. The effect of low efficiency and enhanced sealing effect

Active Publication Date: 2020-04-10
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem solved by the present invention is: in view of the current prior art, the traditional graphite sealing structure is prone to the problems of short sealing leakage channel, no redundant performance and the difficulty of sealing quantitative control in the sealing process, and proposes a Flexible graphite metal corrugated tooth composite gasket sealing structure

Method used

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  • Flexible graphite metal wave tooth composite gasket sealing structure
  • Flexible graphite metal wave tooth composite gasket sealing structure
  • Flexible graphite metal wave tooth composite gasket sealing structure

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Embodiment Construction

[0045] A flexible graphite metal wave-tooth composite gasket sealing structure, used for sealing and leak-proofing the docking port of the propellant delivery pipeline, such as figure 1 As shown, it mainly includes tenon flange, flexible graphite metal corrugated tooth composite gasket, metal limit ring, and groove surface flange. The corresponding numbers in the figure are: 1- tenon face flange, 2- flexible graphite metal corrugated tooth Composite gasket, 3-metal limit ring, 4-groove flange, 5-fastening screw, tenon flange and groove flange are all symmetrical ring structures with L-shaped edges, and the two flanges pass through The bottom face is matched and connected, and the hollow part is used for the butt joint of the upper and lower ends of the pipeline. The tenon face flange and the groove face flange are fixed by fastening screws to form a flange sealing structure, and are set outside the joint of the upper and lower propellant pipelines.

[0046] Sealing grooves are...

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Abstract

The invention discloses a flexible graphite metal wave tooth composite gasket sealing structure. The sealing structure comprises a tongue flange, a flexible graphite metal wave tooth composite gasket,a metal limiting ring and a groove flange. According to the design of the composite gasket structure, the leakage rate and the length of an internal flow channel are strictly and normatively designed, the sealing effect is greatly enhanced, connection and sealing requirements of deep low-temperature propellant pipelines and other systems can be met from quantitative control, multi-channel redundancy, temperature self-tightening and other advanced sealing requirements, and the sealing structure is suitable for connection and sealing of a rocket and missile pipeline systems.

Description

technical field [0001] The invention relates to a sealing structure of a flexible graphite metal corrugated tooth composite gasket, which belongs to the technical field of flexible graphite sealing. Background technique [0002] Flexible graphite sealing technology is a relatively mature and widely used sealing technology in recent years. After deep processing, flexible graphite is a very excellent sealing material. It can be used to seal various parts by making various graphite gaskets and gaskets. High-quality The flexible graphite sealing material has the advantages of high temperature resistance, cryogenic resistance, corrosion resistance and low thermal expansion rate, and can be used for high and low temperature fluid sealing in aerospace, aviation, chemical, petroleum, electric power and other industries. [0003] In the traditional graphite sealing structure, there are disadvantages such as difficult sealing quantitative control, short sealing leakage channel, and no...

Claims

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Application Information

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IPC IPC(8): F16L23/18F16L23/032F16J15/12
CPCF16L23/18F16L23/032F16J15/104F16J15/102F16J15/122
Inventor 郑茂琦满满邢力超许光张婷王丛飞罗盟张聪张立强丁建春石佳徐珊珊
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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