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Double-sealing structure

A self-sealing structure, double-sealing technology, applied in the direction of engine sealing, engine components, mechanical equipment, etc., can solve the problems of leakage, insufficient sealing reliability, endangering the safe operation of the system, etc., and achieve the effect of improving the sealing reliability.

Pending Publication Date: 2020-01-31
四川省聚核盛电热电器有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Under severe working load conditions such as long-term high temperature and high pressure, temperature and pressure fluctuations or cycles, the above-mentioned single metal gasket forced sealing structure often has insufficient sealing reliability and is prone to the risk of leakage, which endangers the safe operation of the system in severe cases

Method used

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Effect test

Embodiment 1

[0032] refer to figure 1 , the present invention provides a technical solution: a double sealing structure, including a self-sealing structure and a forced sealing structure, the self-sealing structure includes a sealing seat 1, a penetrating member 2 and an O-shaped rubber ring 3, and the inner sealing seat 1 There is a first groove, and the right angles of the first groove are rounded, and the rounded corners can effectively prevent the O-shaped rubber ring 3 from being scratched during compression deformation. The O-shaped rubber ring 3 is set In the first groove, the penetrating member 2 penetrates the sealing seat 1 and cooperates with the sealing seat 1, and the O-shaped rubber ring 3 provided in the sealing seat 1 is compressed to deformation by the penetrating member 2 , the self-sealing is achieved through the size fit between the through-piece 2 and the first groove in the sealing seat 1, and compresses the O-shaped rubber ring 3 arranged in the first groove to defor...

Embodiment 2

[0037] refer to figure 2 , the present invention provides a technical solution: a double sealing structure, including a self-sealing structure and a forced sealing structure, the self-sealing structure includes a sealing seat 1, a penetrating member 2 and an O-shaped rubber ring 3, and the inner sealing seat 1 There is a first groove, and the right angles of the first groove are rounded, and the rounded corners can effectively prevent the O-shaped rubber ring 3 from being scratched during compression deformation. The O-shaped rubber ring 3 is set In the first groove, the penetrating member 2 penetrates the sealing seat 1 and cooperates with the sealing seat 1, and the O-shaped rubber ring 3 provided in the sealing seat 1 is compressed to deformation by the penetrating member 2 , the self-sealing is achieved through the size fit between the through-piece 2 and the first groove in the sealing seat 1, and compresses the O-shaped rubber ring 3 arranged in the first groove to defo...

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Abstract

The invention discloses a double-sealing structure which comprises a self-sealing structure and a forced sealing structure. The self-sealing structure comprises a sealing seat, a penetrating part andan O-shaped rubber ring. A first groove is formed in the sealing seat, and the O-shaped rubber ring is arranged in the first groove. The penetrating part penetrates the sealing seat and is matched with the sealing seat, and the O-shaped rubber ring arranged in the sealing seat is compressed by the penetrating part to be deformed. The forced sealing structure comprises a sealing ring, a metal gasket and a compression nut, one end of the sealing ring is welded to the penetrating part, the metal gasket is arranged between the sealing ring and the sealing seat, the compression nut comprises a sealing section and a screwing section, the sealing section is provided with an inner thread, and the outer surface of the sealing seat is provided with an outer thread matched with the inner thread. By means of the double-sealing structure, a double-sealing structure suitable for threaded connecting pipes of high-temperature and high-pressure containers or large-caliber pipelines is achieved througha forced sealing and self-sealing combined manner, two effective sealing structures can be formed through the double-sealing structure, and the sealing reliability is greatly improved.

Description

technical field [0001] The invention relates to the technical field of high-temperature and high-pressure sealing, and more specifically relates to a double-sealing structure. Background technique [0002] In the high-temperature and high-pressure containers of petrochemical industry, thermal power plants, thermal experimental devices and other thermal systems, in order to heat the medium inside the container, an intercalated electric heating element can be used. The method is generally a forced seal with a metal pad. In addition, in order to measure the temperature of the medium inside the high-temperature and high-pressure container or large-diameter pipeline, an intercalated thermometer is used, and the thermometer and the container or pipeline are also connected by threaded pipes, and the sealing method is generally forced to seal with a metal pad. [0003] Under severe working load conditions such as long-term high temperature and high pressure, temperature and pressur...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/06F16J15/10
CPCF16J15/062F16J15/061F16J15/104F16J15/102
Inventor 聂众一高宇婷骆明华
Owner 四川省聚核盛电热电器有限公司
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