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Method for plugging sulfuric acid container leakage point under pressure

A container and leak point technology, applied in the direction of engine sealing, pipe/pipe joint/pipe fittings, engine components, etc., can solve the problems such as the need to stop production of leak points, reduce the stoppage time of acid production, etc., to ensure no sulfuric acid leakage, reduce The effect of acid production shutdown time and environmental pollution reduction

Inactive Publication Date: 2020-07-14
ANGANG STEEL CO LTD
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AI Technical Summary

Problems solved by technology

[0003] The technical problem to be solved by the present invention is to provide a method for plugging the leakage point of the sulfuric acid container under pressure, to solve the problem that the existing leakage point needs to be stopped for treatment, and to reduce the shutdown time of acid production

Method used

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  • Method for plugging sulfuric acid container leakage point under pressure

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Embodiment

[0027] The leak point is the connection flange port of the upper and lower tower body of the sulfuric acid tower and the connection position between the upper tower body and the flange.

[0028] The method for plugging the leakage point of the sulfuric acid container under pressure comprises the following steps:

[0029] 1) Check to determine the size of the sulfuric acid leak in the container and the thinning area of ​​the surrounding container wall.

[0030] 2) Make a repair cover. In order to control this leakage, the plugging plan is to block the connecting flanges of the upper and lower tower bodies and the connection position between the upper tower body and the flange as a whole, and make a ring-shaped repair cover with grooves. The groove can wrap the flange and the surrounding vessel wall thinning position;

[0031] 3) Clean up the leakage point and the surface of the surrounding container to expose the original surface of the sulfuric acid tower; for larger leakage ...

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Abstract

The invention relates to a method for plugging a sulfuric acid container leakage point under pressure. The method comprises the following steps of 1) checking and determining the size of the sulfuricacid leakage point and the surrounding container wall thinning area; 2) manufacturing a repairing cover according to the leakage point position; 3) cleaning the leakage point and the surrounding container surface to expose the surface of the original container; 4) filling the repairing cover with a glue mixture of acid-resistant glue, acid-resistant glue powder, high-temperature glue and stick glue, and compacting; 5) adhering the filled repairing cover to the leakage point position, and tightly pressing the repairing cover on the outer surface of the container by adopting a steel wire or a bolt, and 6) realizing leakage point plugging after the mixture is cured. By adopting the method, the leakage point can be completely plugged after the filler is cured, no sulfuric acid leakage is ensured, the acid production halt time is reduced, and the environmental pollution is reduced.

Description

technical field [0001] The invention relates to maintenance of sulfuric acid leaks, in particular to a method for plugging the leaks of sulfuric acid containers under pressure. Background technique [0002] In the acid production process in the gas purification area, due to the high corrosiveness of sulfuric acid, the equipment has been used for a long time, causing leakage in acid gas pipelines, absorption towers and other places. If the leakage location is a steel structure, the acid production process needs to be shut down for welding repair or replacement, resulting in excessive exhaust gas indicators. If the leakage location is a structure such as glass fiber reinforced plastic, it cannot be handled. Leaking sulfuric acid gas will cause serious pollution to the surrounding environment. Contents of the invention [0003] The technical problem to be solved by the present invention is to provide a method for plugging the leakage point of the sulfuric acid container und...

Claims

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Application Information

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IPC IPC(8): F16J15/02F16L55/175
CPCF16J15/02F16L55/175
Inventor 孙浩张国强田庆良
Owner ANGANG STEEL CO LTD
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