Double-layer pipe joint for engine gas supply system

A technology of gas supply system and double-layer pipes, which is applied in the direction of engine components, combustion engines, machines/engines, etc., which can solve the problems of large installation positions, inapplicable pipe diameters, and large sizes, and achieve reduced installation positions and good sealing , The effect of convenient welding operation

Active Publication Date: 2015-10-21
广西玉柴船电动力有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Disadvantages: large size, occupying a large installation position, the pipe diameter is too small to be suitable, the sealing of the double pipe joint is not good

Method used

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  • Double-layer pipe joint for engine gas supply system
  • Double-layer pipe joint for engine gas supply system
  • Double-layer pipe joint for engine gas supply system

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Embodiment Construction

[0015] The specific embodiments of the present invention will be described in detail below in conjunction with the accompanying drawings, but it should be understood that the protection scope of the present invention is not limited by the specific embodiments.

[0016] Unless expressly stated otherwise, throughout the specification and claims, the term "comprise" or variations thereof such as "includes" or "includes" and the like will be understood to include the stated elements or constituents, and not Other elements or other components are not excluded.

[0017] Such as figure 1 with figure 2 As shown, the specific structure of the double-layer pipe joint of the engine gas supply system according to the specific embodiment of the present invention includes: an outer pipe 1, an inner pipe 3, and a flange 2 connecting the outer pipe 1 and the inner pipe 3, wherein the outer The pipe 1 and the inner pipe 3 are formed with a ventilating interlayer, and the inner pipe 3 is wel...

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Abstract

The invention discloses a double-layer pipe joint for an engine gas supply system. The double-layer pipe joint for the engine gas supply system comprises an outer pipe, an inner pipe and a flange. The upper section of the inner pipe is arranged in an inner cavity of the outer pipe to form a ventilation interlayer. The flange comprises a flange plate and an inner pipe sleeve. An inner pipe penetrating hole is formed in the center of the flange plate. An outer pipe welding groove is formed in the upper end of the inner pipe penetrating hole. The lower section of the inner pipe is inserted in the inner pipe penetrating hole to form a ventilation gap. The ventilation interlayer is communicated with the ventilation gap. Multiple vent holes are formed in the peripheral side of the upper side of the inner pipe sleeve at intervals and communicated with the ventilation gap. By the adoption of the double-layer pipe joint for the engine gas supply system, the vent holes communicated with the ventilation interlayer of a double-layer pipe are formed in the peripheral side of the flange, the installation positions of the double-layer pipe joint are reduced, a double sealing structure of a gasket and an O-shaped ring is adopted in the double-layer pipe joint, and sealing performance is good.

Description

technical field [0001] The invention relates to the field of gas supply systems protected by double walls for ships, in particular to a double-layer pipe joint of an engine gas supply system. Background technique [0002] The gas supply system pipelines of existing gas engines generally use single-layer pipes. In order to improve the safety of the pipelines, double-layer pipes are required on marine gas engines. When the pipe is broken or the seal is not tight, the gas leaks into the outer pipe and flows to the safe area with the ventilation system. [0003] The double-layer pipe joint of the existing double-layer gas pipeline is welded and connected with the double-layer pipe and the flange (double O-ring), wherein the flange is circumferentially provided with a plurality of ventilation holes communicating with the ventilation interlayer of the double-layer pipe. Disadvantages: large size, occupying a large installation position, the pipe diameter is too small to be suitab...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F02M21/02
CPCY02T10/30
Inventor 邓亚鹏曾志龙金伟蔡晓霞李佑长覃明智
Owner 广西玉柴船电动力有限公司
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