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Cleaning method of ash pipe in thermal power plant

A thermal power plant, clean technology, applied in the directions of cleaning methods and utensils, cleaning hollow objects, chemical instruments and methods, etc., can solve the problems of the service life of the easily corroded pipe wall, the large diameter of the power plant ash pipe, and the high cleaning cost, so as to save The effect of resources, simple structure and low operating cost

Inactive Publication Date: 2002-02-27
李志杰
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Although this method can achieve the task of cleaning the ash pipes, due to the large and long diameter of the ash pipes in the power plant, a large amount of acid solution is required for each cleaning, which not only has a high cleaning cost, but also easily corrodes the pipe wall and affects its quality. At the same time, the acid after cleaning is easy to pollute the environment, which is an insurmountable defect in the cleaning of ash pipes in existing thermal power plants

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] Put hard particles such as sand or crushed stones into the water slag pool equipped with a mixer, add water to stir and mix well, connect the inlet end of the water slag pump to the water slag pool through a pipeline equipped with a control valve, and the water The outlet end of the slag pump is connected with the cleaned ash pipe through the pipe.

Embodiment 2

[0012] The inlet end of the slag pump is connected with the existing boiler water slag pool of the thermal power plant through a pipeline connected in series with the control valve, and the outlet end of the slag pump is connected with the cleaned ash pipeline.

[0013] Embodiment 2 is the best embodiment among the foregoing embodiments.

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PUM

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Abstract

The present invention relates to a method for cleaning ash pipeline of steam-power plant, which is characterized by that it utilizes slag transferring pump to feed the liquid containing hard granularmaterial into pipeline to make the hard granular material impact against ash scale and make the ash scale fall down, and discharge the ash scale from the pipeline by means of high-speed running liquid containing hard granular material. Said invention does no damage to pipeline, and has no corrosion and has no environmental pollution, and its cleaning cost is low.

Description

[0001] technical scope [0002] The invention belongs to the technical field of pipe cleaning, in particular to a method for cleaning ash pipes of thermal power plants. Background technique [0003] At present, most thermal power plants in the society use acid cleaning methods to clean ash pipes, that is, send the pre-mixed cleaning acid into the ash pipes through a liquid pump, and use the chemical reaction between acid and ash to clean the ash pipes. , so that the dust off the pipe wall, and then discharged, so as to achieve the task of cleaning. Although this method can achieve the task of cleaning the ash pipes, due to the large and long diameter of the ash pipes in the power plant, a large amount of acid solution is required for each cleaning, which not only has a high cleaning cost, but also easily corrodes the pipe wall and affects its quality. At the same time, the acid solution after cleaning is easy to pollute the en...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B08B9/032
Inventor 李志杰
Owner 李志杰
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