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Buried long gas pipeline anti-corrosion device

A gas pipeline and anti-corrosion technology, which is applied in the direction of pipeline anticorrosion/rust protection, pipeline protection, mechanical equipment, etc., can solve the problems of difficult maintenance of pipelines, stuck in screw holes, high maintenance costs, etc., and achieves simple structure and flexible use , the effect of extending the maintenance cycle

Inactive Publication Date: 2018-11-27
MIANYANG FEIYUAN TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] The purpose of the present invention is to provide anti-corrosion equipment for buried long gas pipelines to solve the problem of bolt damage or being stuck in the screw holes caused by the lack of targeted protection of bolts and nuts exposed in the soil in the prior art, resulting in pipeline corrosion. Difficult maintenance and high maintenance costs

Method used

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  • Buried long gas pipeline anti-corrosion device
  • Buried long gas pipeline anti-corrosion device
  • Buried long gas pipeline anti-corrosion device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] like figure 1 The anti-corrosion equipment for long buried gas pipelines shown includes a housing 1 and a support plate 2 arranged on the base 13 of the cathodic protection monitoring device or the anti-corrosion layer detection device, wherein the housing 1 can be installed along the base 13 The surface of the shell 1 moves toward the support plate 2 as an open end, and the support plate 2 is fixedly installed on the base 13. When the open end of the shell 1 is pressed against the support plate 2, the inside of the shell 1 It forms a closed protection cavity with the support plate 2; a fixed plate 3 installed on the base 13 is arranged in the protected cavity, and a spring 4 is arranged on the fixed plate 3, and the spring 4 is connected to the inner wall of the housing 1, The spring 4 is always in a stretched state; a drying box for accommodating the desiccant is also arranged in the protective cavity, and the drying box is placed above the bolt 15, and the shell 7 of...

Embodiment 2

[0052] like figure 2 and image 3 As shown, on the basis of Embodiment 1, a locking part is provided on the side of the positioning pin 5 , and the locking part is set as a stepped structure matching the stepped side of the positioning hole 12 .

Embodiment 3

[0054] On the basis of embodiment 2, an anti-slip pad is provided on the clamping portion, and the anti-slip pad is made of nitrile rubber.

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Abstract

The invention discloses a buried long gas pipeline anti-corrosion device. The buried long gas pipeline anti-corrosion device comprises a housing and a support plate, the inside of the housing and thesupport plate enclose a closed protecting cavity, inside which a fixing plate is arranged and connected to the housing through a spring, and the spring is in a stretched state all the time; a drying tank is arranged inside the protecting cavity, the case of the drying tank is made of rubber, and the inside of the case is provided with a piercing block and a pressing block; the closed end of the housing is provided with a positioning pin, the bottom end of the position pin movable penetrates through the top surface to the bottom surface of the closed end of the housing, and the bottom of the positioning pin is cut with a slope surface; a base is provided with a positioning hole for placing the positioning pin, the side surface of the positioning hole, which faces towards the support plate,is in a stepping shape, and the diameter of the positioning hole is gradually increased from bottom to top. The buried long gas pipeline anti-corrosion device can effectively protect bolts and nuts from corrosion and damage, prolong the maintenance cycle and reduce the maintenance difficulty.

Description

technical field [0001] The invention relates to the field of anticorrosion of gas transmission pipelines, in particular to anticorrosion equipment for buried long gas transmission pipelines. Background technique [0002] Gas pipelines are mainly used to transport natural gas, liquefied petroleum gas and artificial gas. Gas pipelines are spread all over the north and south of my country to complete the transmission of natural gas, liquefied petroleum gas and artificial gas. [0003] As the transmission carrier of oil and gas, buried pipeline is one of the important facilities of ground engineering. It is the link connecting upstream resources and downstream users. Since the pipeline has been buried underground for a long time, as time goes by, affected by factors such as external soil characteristics and topographical settlement, the pipeline will corrode, perforate, and leak, which will bring serious damage to the field and the country. Economic losses. Not only that, pip...

Claims

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Application Information

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IPC IPC(8): F16L58/00F16B33/00
CPCF16L58/00F16B33/008
Inventor 李艳芬
Owner MIANYANG FEIYUAN TECH CO LTD
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