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High-pressure gas joint leak-protection structure

A protective structure and high-pressure technology, applied in the direction of pipes/pipe joints/fittings, gas/liquid distribution and storage, pipeline systems, etc., can solve the problems of small size of high-speed engines and insufficient space for anti-leakage structures, and achieve compact structure Effect

Active Publication Date: 2017-01-11
WEICHAI HEAVY MACHINERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This anti-leakage structure can still be used on large engines, but the volume of small high-speed engines is relatively small, which is far from enough to provide the space required by the anti-leakage structure of the prior art

Method used

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  • High-pressure gas joint leak-protection structure
  • High-pressure gas joint leak-protection structure
  • High-pressure gas joint leak-protection structure

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0016] The present invention will be further described below in conjunction with the accompanying drawings and embodiments.

[0017] to combine figure 1 and figure 2 As shown in the leakage protection structure of the high-pressure gas joint, the joint body 3 and the compression nut 5 connected to the joint body 3 at one end form the joint parts. The outside of the joint part is provided with a protective sleeve 4 with one end being an open end and the other end being a closed end. The open end of the protective sleeve 4 is provided with a first sealing ring 2, and the protective sleeve 4 is provided with an internal thread near its open end. The outer circumference of the middle part of the joint body 3 is provided with external threads, and the middle part of the joint body 3 is threadedly connected with the protective sleeve 4; a third sealing ring 11 is provided at the joint between the joint body 3 and the supplied part 1; A protective sleeve through hole 41 is provide...

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Abstract

The invention discloses a high-pressure gas joint leak-protection structure. The high-pressure gas joint leak-protection structure comprises a joint body and a joint component, wherein one end of the joint component is connected with the joint body, and the joint component is used for tightly pressing a nut. A protective cover is arranged outside the joint component. One end of the protective cover is an open end, and the other end of the protective cover is a sealed end. An internal thread is arranged on the portion, close to the open end, of the protective cover. An external thread is arranged on the periphery of the middle portion of the joint body. The middle portion of the joint body is connected with the protective cover in a threaded mode. A protective cover through hole is formed in the sealed end of the protective cover. A one-way valve is further arranged on the protective cover. According to the high-pressure gas joint leak-protection structure provided by the invention, a leak portion is designed on the high-pressure gas joint leak-protection structure and located on the periphery of a component to which gas is supplied, the original structure of the component to which gas is supplied is not changed, the structure is compact, and requirements of small natural gas engines are met.

Description

technical field [0001] The invention belongs to the technical field of gas engine components, and in particular relates to a leakage protection structure for a high-pressure gas joint. Background technique [0002] In the prior art, in order to avoid gas leakage during the high-pressure gas transmission process of marine natural gas engines, it is necessary to design leakage places on the parts to be supplied with gas, and to use gas detection and removal devices, so the anti-leakage structure is very large in size. This anti-leakage structure can still be used on large engines, but the volume of small high-speed engines is relatively small, which is far from enough to provide the space required by the anti-leakage structure of the prior art. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a leakage protection structure for high-pressure gas joints, where the leakage location is designed on the leakage protectio...

Claims

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Application Information

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IPC IPC(8): F16L55/00F17D5/02
CPCF16L55/00F17D5/02
Inventor 冯向波
Owner WEICHAI HEAVY MACHINERY
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