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Double-layer corrugated graphite composite gasket

A composite gasket and corrugated technology, which is applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of poor sealing performance of corrugated gaskets, and achieve the purpose of avoiding leakage of flange sealing structure, good compression and rebound performance, and enhanced corrugation elastic effect

Inactive Publication Date: 2019-06-18
CHANGSHU INSTITUTE OF TECHNOLOGY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The purpose of the present invention is to provide a double-layer corrugated graphite composite gasket, which solves the problem of poor sealing performance of the corrugated gasket in the existing flange sealing technology

Method used

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  • Double-layer corrugated graphite composite gasket
  • Double-layer corrugated graphite composite gasket
  • Double-layer corrugated graphite composite gasket

Examples

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Embodiment 1

[0015] Example 1, see figure 1 As shown, the double-layer corrugated graphite composite gasket involved in this embodiment includes a first metal corrugated ring sheet 1 and a second metal corrugated ring sheet 2 stacked up and down. The cross-sectional waveforms of the first metal corrugated ring piece 1 and the second metal corrugated ring piece 2 are all sine waves, and the materials are all made of nickel-titanium alloy. The troughs of the cross-sectional waveform of the first metal corrugated ring piece 1 are opposite to the peaks of the cross-sectional waveform of the second metal corrugated ring piece 2 . A flexible graphite filling layer 3 is provided between the first metal corrugated ring sheet 1 and the second metal corrugated ring sheet 2, and a flexible graphite coating layer 4 is provided on the outside of the first metal corrugated ring sheet 1 and the second metal corrugated ring sheet 2 , the surface of the flexible graphite coating layer 4 is a plane. The n...

Embodiment 2

[0022] Embodiment 2. The structure of this embodiment is the same as that of Embodiment 1, and the dimensions are also the same. The difference is that the first metal corrugated ring piece and the second metal corrugated ring piece are made of stainless steel.

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Abstract

The invention discloses a double-layer corrugated graphite composite gasket. The double-layer corrugated graphite composite gasket comprises a first metal corrugated ring piece and a second metal corrugated ring piece stacked up and down; wave peaks of a section waveform of the first metal corrugated ring piece are opposite to wave valleys of a section waveform of the second metal corrugated ringpiece; wave valleys of the section waveform of the first metal corrugated ring piece are opposite to wave peaks of the section waveform of the second metal corrugated ring piece; a flexible graphite filling layer is arranged between the first metal corrugated ring piece and the second metal corrugated ring piece; and flexible graphite coating layers are arranged on the outer sides of the first metal corrugated ring piece and the second metal corrugated ring piece. Compared with the prior art, the double-layer corrugated graphite composite gasket achieves better resilience and compression performances, and can solve the problem of weak tightness.

Description

technical field [0001] The invention relates to a flange sealing gasket, in particular to a double-layer corrugated graphite composite gasket. Background technique [0002] Gaskets are ubiquitous in industrial process equipment such as piping, pressure vessels and heat exchangers. The use of gaskets can not only maintain the sealing performance of the equipment, but also solve the problem of wear and tear of the connecting parts. With the advancement of science and technology, process industrial devices are increasingly parameterized and large-scale, and new processes are constantly emerging, especially the petrochemical industry, chemical industry and the rise of large power stations. Process equipment is moving towards high temperature, high pressure, high vacuum, cryogenic and large-scale With the development of modernization, the requirements for gaskets are becoming more and more stringent. Some traditional sealing materials and structures can no longer meet the incre...

Claims

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Application Information

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IPC IPC(8): F16J15/12
Inventor 邓文飞张斌谭伟卞棣胡朝斌宇晓明韩志达
Owner CHANGSHU INSTITUTE OF TECHNOLOGY