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Viscoelastic body corrosion prevention method for pipe fitting in narrow space

A narrow space, viscoelastic body technology, applied in pipeline anticorrosion/rust protection, pipes/pipe joints/fittings, damage protection, etc., can solve problems such as troubled gas, achieve obvious anticorrosion effect, isolate corrosion, and good cold flow The effect of sex and self-healing function

Inactive Publication Date: 2020-07-10
北京永逸舒克防腐蚀技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the corrosion protection management of the pipe fittings in the gate shaft has always been a difficult problem for the managers of the gas industry.

Method used

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  • Viscoelastic body corrosion prevention method for pipe fitting in narrow space

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A viscoelastic anticorrosion method for pipe fittings in a narrow space, comprising the following steps:

[0036] (1) Use explosion-proof derusting tools to remove the rust layer of the pipe fittings, so that the surface treatment of the pipe fittings can reach St2;

[0037] (2) Use a washing machine to wash with high-pressure water to clean the dirt on the surface of the pipe fittings; the air volume is 375cfm, and the injection pressure is 100psi;

[0038] (3) There is no water vapor in the hot air drying pipe fittings; the temperature is 200°C;

[0039] (4) Wind the straight pipe section, valve body, flange, etc. according to the viscoelastic tape;

[0040] (5) Winding PE protective tape;

[0041] (6) Anti-corrosion of bolts; use viscoelastic paste and bolt caps for anti-corrosion;

[0042] (7) Anti-corrosion of special heterosexual parts: anti-corrosion butter is used for flanges;

[0043] (8) Apply colored paint according to standardized specifications: apply c...

Embodiment 2

[0046] A viscoelastic anticorrosion method for pipe fittings in a narrow space, comprising the following steps:

[0047] (1) Use explosion-proof derusting tools to remove the rust layer of the pipe fittings, so that the surface treatment of the pipe fittings can reach St2;

[0048] (2) Wash with high-pressure washing machine to clean the dirt on the surface of the pipe fittings; the air volume is 185cfm, and the injection pressure is 30psi;

[0049] (3) There is no water vapor in the hot air drying pipe fittings; the temperature is 100°C;

[0050] (4) Wind the straight pipe section, valve body, flange, etc. according to the viscoelastic tape;

[0051] (5) Winding PE protective tape;

[0052] (6) Anti-corrosion of bolts; use viscoelastic paste and bolt caps for anti-corrosion;

[0053] (7) Anti-corrosion of special heterosexual parts: anti-corrosion butter is used for flanges;

[0054] (8) Apply colored paint according to standardized specifications: apply colored paint acc...

Embodiment 3

[0057] A viscoelastic anticorrosion method for pipe fittings in a narrow space, comprising the following steps:

[0058](1) Use explosion-proof derusting tools to remove the rust layer of the pipe fittings, so that the surface treatment of the pipe fittings can reach St2;

[0059] (2) Use a washing machine to wash with high-pressure water to clean the dirt on the surface of the pipe fittings; the air volume is 300, and the injection pressure is 100psi;

[0060] (3) Hot air drying pipe fittings without water vapor; temperature, 300°C;

[0061] (4) Wind the straight pipe section, valve body, flange, etc. according to the viscoelastic tape;

[0062] (5) Winding PE protective tape;

[0063] (6) Anti-corrosion of bolts; use viscoelastic paste and bolt caps for anti-corrosion;

[0064] (7) Anti-corrosion of special heterosexual parts: anti-corrosion butter is used for flanges;

[0065] (8) Apply colored paint according to standardized specifications: apply colored paint accordin...

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Abstract

The invention relates to a viscoelastic body corrosion prevention method for a pipe fitting in a narrow space. The method comprises the steps that rust is manually removed, clear water flow is used for removing superficial filth on the pipe fitting, the pipe fitting is dried with hot air to achieve a water-vapor-free condition, viscoelastic body coating is painted, PE protective tape is wound, bolt corrosion prevention is conducted, corrosion prevention is conducted on special dissimilar parts, and colored paint is painted according to standardized specifications. The method can solve the problem that mechanical rust removal is unavailable in a workplace where the operation space is narrow. Furthermore, the viscoelastic body material has excellent adhesive property, is high in chemical resistance, ageing resistance and weather resistance, has good cold flow property, self-repairing function and electric insulation performance, and is safe and environment-friendly.

Description

technical field [0001] The invention belongs to the field of corrosion protection of pipe fittings in gas lock wells, and in particular relates to a viscoelastic body anticorrosion process for pipe fittings in a narrow space. Background technique [0002] In recent years, with the rapid development of gas pipeline network construction, the number of gas supporting facilities has increased day by day, and the number of gas lock wells has also increased. effect. Therefore, it is very important to protect the supporting equipment in the gate shaft from corrosion and prevent it from oxidizing and corroding in a humid environment, to protect the normal operation of the gas pipeline network, improve the operating efficiency of the gas pipeline, and reduce management and maintenance costs. [0003] Corrosion of pipe fittings in some gate shafts is relatively serious. Due to the damage to the original coating on the surface of valves, flanges and other pipe fittings in the gate sha...

Claims

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Application Information

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IPC IPC(8): B05D7/14B05D5/00B05D5/10B05D7/24B05D5/06F16L58/10F16L58/18
CPCB05D7/146B05D5/00B05D5/10B05D7/24B05D5/06F16L58/10F16L58/18B05D2507/00Y02A20/20
Inventor 李胜国刘瑶尹志彪王生平邹健高佳伟褚大军赵颖马汉龙苏锋孙谢杨
Owner 北京永逸舒克防腐蚀技术有限公司
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