Rapid repair method for damaged sealing surface of middle-high pressure steam system

A technology of a steam system and a repair method, which is applied to the sealing of engines, engine components, mechanical equipment, etc., can solve problems such as difficulty in repairing damaged sealing surfaces, leakage of steam pipes and equipment connection surfaces, etc., and saves equipment purchase and installation. Cost, shorten maintenance time, quick effect

Inactive Publication Date: 2017-08-18
YUNNAN CHIHONG ZINC & GERMANIUM
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  • Abstract
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AI Technical Summary

Problems solved by technology

[0008] In order to overcome the problems existing in the background technology, the present invention provides a method for quickly repairing damaged sealing surfaces of medium and high pressure steam systems, which solves the problem of difficult repair of damaged sealing surfaces caused by leakage of steam pipes and equipment connection surfaces

Method used

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  • Rapid repair method for damaged sealing surface of middle-high pressure steam system
  • Rapid repair method for damaged sealing surface of middle-high pressure steam system
  • Rapid repair method for damaged sealing surface of middle-high pressure steam system

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Embodiment Construction

[0027] A rapid repair method for damaged sealing surface of a medium and high pressure steam system, the specific steps are:

[0028] 1) Cleaning of damaged sealing surfaces

[0029] Clean the damaged sealing surface 1. According to the damage degree of the damaged sealing surface 1 and the precision of the equipment, use coarse sandpaper, fine sandpaper or plastic sandpaper to polish the damaged sealing surface 1. The grinding requirement is the damaged sealing surface 1. Metallic luster, then use a clean rag to clean the damaged sealing surface 1;

[0030] 2) Apply sealant to cover the damaged spots

[0031] Apply the sealant to the damaged part of the damaged sealing surface 1, or apply the entire sealing surface. The thickness of the sealant is required to be about 2mm higher than the sealing plane of the equipment;

[0032] 3) Arrange the sealing rope

[0033] Arrange the sealing rope 3 along the damaged sealing surface 1 inside and outside each circle.

[0034] The s...

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Abstract

The invention relates to a rapid repair method for a damaged sealing surface of a middle-high pressure steam system, and belongs to the related field of pipelines and equipment taking middle-high pressure steam as a medium. The rapid repair method solves the problems that sealing surfaces are damaged, steam is leaked and the repair is difficult since the sealing surfaces of a flange and a valve of a middle-high pressure steam pipeline, a cylinder cover of a steam turbine and other steam connecting equipment are scoured by the steam and grooves are formed. Compared with an on-line leakage stoppage method having high maintenance cost and requiring special equipment for maintenance, the rapid repair method requires no special equipment for the repair, simply adopts manual repair, and is very low in maintenance cost, and the rapid repair method further has the characteristics of short repair time and a quick effect; the repair is carried out directly without replacing the equipment (like the flange and the valve), and the equipment purchasing and installation cost is reduced; and damaged sealing surfaces do not need to be returned to a factory for welding and cutting treatment, site maintenance is available, the return-to-factory maintenance cost is avoided, and the maintenance time is shortened substantially.

Description

technical field [0001] The invention belongs to the related field of pipelines and equipment using medium and high pressure steam as a medium, and in particular relates to a rapid repairing method for damaged sealing surfaces of a medium and high pressure steam system. Background technique [0002] Due to fluctuating steam conditions, pipeline shrinkage and expansion, etc., the sealing surfaces of steam pipeline flange valves, steam turbine cylinder heads and other equipment are prone to leakage. Sometimes the leakage cannot be dealt with in time. If there is a groove, replacing the gasket cannot solve the problem of steam leakage. At present, the domestic methods for dealing with damaged steam sealing surfaces are as follows: [0003] 1. Online plugging. The method is to install special equipment at the leakage part, use the cavity formed between the sealing part and the special equipment, and use a special high-pressure glue injection tool to inject the sealant into the c...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F16J15/14F16J15/10B23P6/00
CPCB23P6/00F16J15/10F16J15/102F16J15/14
Inventor 聂贵兴陈德华张春滕仕景王世龙亢朝华禄伟谭红梅冯丽
Owner YUNNAN CHIHONG ZINC & GERMANIUM
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