Natural gas conveying anti-explosion metal hose

A technology for metal hoses and natural gas pipes, applied in the direction of hoses, pipes/pipe joints/fittings, pipes, etc., can solve the problems of low strength and high flow rate of metal hoses, achieve frictional static suppression, prolong service life, reduce Effect of Minor Accident Rate

Pending Publication Date: 2020-11-17
兰州天亿石化设备维修技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The invention provides an explosion-proof metal hose for natural gas pipeline transportation, aiming to solve the problems of low strength and high flow velocity of the existing metal hose

Method used

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  • Natural gas conveying anti-explosion metal hose
  • Natural gas conveying anti-explosion metal hose
  • Natural gas conveying anti-explosion metal hose

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1-9 The shown explosion-proof metal hose for natural gas pipelines aims to solve the problems of static sparks and static flash explosions caused by friction with the nozzle due to the high flow rate of natural gas leakage. In order to solve the above problems, this device uses different steel belts 7 design. The specific installation is as follows:

[0034] Such as figure 1 and figure 2 As shown, the device takes a metal hose 5 as a base, and a steel belt 7 is wrapped on the outer surface of the metal hose 5 . At the two ends of the metal hose 5, a cylindrical metal nipple 3 is installed. In order to make the contact between the metal nipple 3 and the metal hose 5 stable, an end ring 8 is set between the metal nipple 3 and the metal hose 5, such as Figure 5 shown.

[0035] In order to keep the metal pup joint 3, the metal hose 5 and the steel strip 7 stable, the compression ring 4 structure is selected. Installation structure such as image 3 ...

Embodiment 2

[0040] Such as Figure 1-9 The shown explosion-proof metal hose for natural gas pipelines aims to solve the problem that the ordinary metal hose has a low strength and weak high-pressure resistance, which makes the metal hose have a tendency to burst and leak. In order to solve the above problems, this device adopts the additional design of the reinforcement ring 6. The specific installation is as follows:

[0041] Such as Figure 1-9 The shown explosion-proof metal hose for natural gas pipelines aims to solve the problems of static sparks and static flash explosions caused by friction with the nozzle due to the high flow rate of natural gas leakage. In order to solve the above problems, this device uses different steel belts 7 design. The specific installation is as follows:

[0042] Such as figure 1 and figure 2 As shown, the device takes a metal hose 5 as a base, and a steel belt 7 is wrapped on the outer surface of the metal hose 5 . At the two ends of the metal ho...

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PUM

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Abstract

The invention relates to the field of metal hoses, in particular to a natural gas conveying anti-explosion metal hose, and aims to solve the problems that an existing metal hose is low in strength andhigh in flow speed. The natural gas conveying anti-explosion metal hose comprises a metal hose body, wherein a fixing set of a flange and a loose flange is arranged on one side of the metal hose body; a butt welding flange is arranged on the other side of the metal hose and used for fixing; the metal hose is covered with a steel belt of a multi-layer structure; the two ends of the metal hose andthe two ends of the steel belt are fixed through cooperation of metal nipples and pressing clamp rings; and the metal hose is wound with a reinforcing ring. According to the natural gas conveying anti-explosion metal hose, the structure of an existing metal hose is optimized. The reinforcing ring is designed in the metal hose, so that the strength of the metal hose is improved, and the double anti-explosion effect of the metal hose is achieved. Meanwhile, the structure that the an existing metal hose is wound with a steel belt is optimized, all layers of the steel belt with which the outer layer of a corrugated pipe is wrapped are in staggered contact through the change of the winding sequence, and generation of friction static electricity is restrained.

Description

technical field [0001] The invention relates to the field of metal hoses, in particular to an explosion-proof metal hose for natural gas pipeline transmission. Background technique [0002] In the natural gas transmission and petrochemical industry, the use of reciprocating compressors is the most common. During the pipeline work, most of them are subject to alternating loads and are in a high-pressure state. In the field of domestic oil and gas fields, high-pressure natural gas or gas has repeatedly caused flash explosions and fire accidents due to the formation of static electricity in the process of pipeline puncture and leakage, resulting in heavy casualties and losses of human and material resources, and natural gas leakage (blowout) has caused hydrogen sulfide poisoning Accidents also occasionally occur in oil and gas fields at home and abroad. [0003] The use of metal hoses can not only better compensate the axial expansion and radial offset of the pipeline, but als...

Claims

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Application Information

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IPC IPC(8): F16L11/16F16L11/15
CPCF16L11/16F16L11/15
Inventor 郭精义刘凯何林林刘荣刚夏虎峰张磊
Owner 兰州天亿石化设备维修技术有限公司
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