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Chemical treatment reagent for high voltage transmission line towers

A high-voltage transmission line, chemical treatment technology, applied in the direction of metal material coating technology, etc., can solve problems such as iron tower construction difficulties, achieve good results, reasonable formula, and improve work efficiency

Inactive Publication Date: 2015-04-29
STATE GRID CORP OF CHINA +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this kind of technology is more beneficial to large-area metal construction, but it will have certain difficulties for the construction of iron towers with angle steel structures.

Method used

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  • Chemical treatment reagent for high voltage transmission line towers
  • Chemical treatment reagent for high voltage transmission line towers
  • Chemical treatment reagent for high voltage transmission line towers

Examples

Experimental program
Comparison scheme
Effect test

example 1

[0024] A kind of chemical treatment reagent of iron tower of high-voltage transmission line, the component that constitutes aqueous solution by weight is as follows:

[0025]

[0026] For such as figure 1 The shown rusted carbon steel sheets were treated with the above reagents. This reagent will complete the work of degreasing, rust removing, phosphating and passivation at one time, and the effect is obvious, such as figure 2 shown.

example 2

[0028] A kind of chemical treatment reagent of iron tower of high-voltage transmission line, the component that constitutes aqueous solution by weight is as follows:

[0029]

[0030]

[0031] For such as figure 1 The shown rusted carbon steel sheets were treated with the above reagents. This reagent will complete the work of degreasing, rust removing, phosphating and passivation at one time, and the effect is obvious, such as image 3 shown.

example 3

[0033] A kind of chemical treatment reagent of iron tower of high-voltage transmission line, the component that constitutes aqueous solution by weight is as follows:

[0034]

[0035] For such as figure 1 The shown rusted carbon steel sheets were treated with the above reagents. This reagent will complete the work of degreasing, rust removing, phosphating and passivation at one time, and the effect is obvious, such as Figure 4 shown.

[0036] In order to test the implementation process of anti-corrosion coatings, anti-corrosion coating tests were carried out on 220kV transmission lines and iron towers in the Binhai area. The tower was built in 1986. The iron tower components were hot-dip galvanized before installation. It has been in operation for 28 years. On-site inspection found that the base of the iron tower has been rusted, and the original galvanized protective layer of the iron tower has lost its cathodic protection effect, especially the iron tower. The joint b...

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PUM

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Abstract

The invention relates to a chemical treatment reagent for high voltage transmission line towers. The aqueous solution of the chemical treatment reagent comprises the following components in parts by weight: 50-65 parts of phosphoric acid, 12-18 parts of zinc oxide, 180-210 parts of zinc nitrate, 0.3-0.4 part of chromium dihydrogen phosphate, 5 parts of tartaric acid, 1-2 parts of alkyl sodium sulfonate, 0.01-0.015 part of emulsifying agent. With the chemical treatment reagent for the high voltage transmission line towers, the work of oil removal, rust removal, phosphatization and passivation of the high voltage transmission line towers can be finished in one time, the labor intensity is greatly reduced, especially overhead operation is greatly convenient; erosion of surrounding soil by various cleaning reagents is greatly reduced so that the environments are protected to the largest extent, and simultaneously the cost of materials and the labor cost are reduced.

Description

technical field [0001] The invention belongs to the technical field of anticorrosion of electric transmission towers, in particular to a chemical treatment reagent for iron towers of high-voltage transmission lines. Background technique [0002] Coatings have a long history of anti-corrosion. Various methods are used to cover corrosion-resistant materials on the protected iron tower substrate so that it does not come into direct contact with corrosive media and avoid corrosion. Combined with the electrochemical theory of metals, coatings The anti-corrosion effect mainly has the following contents: (1) shielding effect, anti-corrosion coatings can prevent or inhibit water, oxygen and ions from penetrating the paint film to isolate the corrosive medium from the metal, thereby preventing the formation of corrosion cells or inhibiting their activities. (2) The resistance effect of the paint film. In the corrosion battery circuit, people cannot prevent the flow of electrons from ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C22/07C23G1/08
Inventor 郭军科于金山苏展卢立秋郝春艳赵鹏邵林刘鸿芳
Owner STATE GRID CORP OF CHINA