Weak alkaline circulation water treating and anti-corrosion method for water cooling generator static wire stick

A generator stator and stator bar technology, applied in the direction of ion exchange water/sewage treatment, etc., can solve the problems of unfavorable safe and stable operation, corrosion of copper wire bars, etc., achieve good social and economic benefits, slow down corrosion, and save medicines

Inactive Publication Date: 2005-03-02
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

This method is not only unfavorable to the safe and stable operation of the system, but also because the desalted water contains a large amount of dissolved oxygen and carbon dioxide, and the free ammonia contained in the condensed water is easy to cause corrosion of copper wire rods

Method used

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  • Weak alkaline circulation water treating and anti-corrosion method for water cooling generator static wire stick
  • Weak alkaline circulation water treating and anti-corrosion method for water cooling generator static wire stick

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0017] The bed structure of the micro-alkaline circulation processor is: divided into upper and lower layers, the upper layer consists of 40 kg of H-type strong acidic supergel styrene-based uniform particle resin 001×7MB and 10 kg of Na-type strong acidic supergel The styrene-based uniform particle resin 001×7MB is formed in parallel, and the lower layer is composed of 100 kg of OH-type strong basic macroporous styrene-based uniform particle resin D201.

[0018] When the internal cooling water of the generator flows through the slightly alkaline circulation processor, the following ion exchange reactions will occur:

[0019]

[0020]

[0021] (M is copper, iron, ammonium and other cations, n is the charge number of cation M)

[0022]

[0023] (A is anion such as chlorine, bicarbonate, etc., m is the charge number of anion A)

[0024] According to the above ion exchange reaction formula, as long as there are traces of impurity ions such as copper, iron, a...

Embodiment 2

[0026] The selected Na type strongly acidic cation exchange resin 1, H type strongly acidic cation exchange resin 2, and OH type strongly basic anion exchange resin 3 of this embodiment are respectively D001, D001, D201, and the consumption is respectively 15 kilograms, 75 kilograms, 180 kg.

Embodiment 3

[0028] The selected Na-type strongly acidic cation exchange resin 1, H-type strongly acidic cation-exchange resin 2, and OH-type strongly basic anion-exchange resin 3 of this embodiment are respectively D001, D001, 201×7MB, and the dosages are respectively 10 kilograms, 50 kg, 120 kg.

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Abstract

The present invention discloses weak alkaline circular water treating and anticorrosion method for water cooling generator stator wire stick. The weak alkaline circular treater has the two-layer bed structure, including upper layer comprising Na or K type strong acid cationic exchange resin and H-type strong acid cationic exchange resin connected parallelly, and the lower layer comprising OH-type strong alkaline anionic exchange resin. The Na or K type cationic exchange resin, the H-type cationic exchange resin and the OH-type anionic exchange resin in the treater have the weight ratio of 1 to 4-8 to 10-18. By means of the unique ionic exchange resin layer structure, the cooling water inside the generator contains small amount of sodium or potassium hydroxide to regulate water quality and to reduce corrosion of the copper wire stick effectively.

Description

technical field [0001] The invention relates to an anti-corrosion method for a stator wire rod of a water-cooled generator, in particular to a method for anti-corrosion of the stator wire rod of a water-cooled generator by using a slightly alkaline circulating water treatment method. Background technique [0002] Generator internal cooling water micro-alkaline circulating water treatment technology is aimed at the problems of low water quality pass rate, serious corrosion of copper wire rods and great safety hazards in domestic large-scale generator internal cooling water systems in recent years. According to the latest power industry standard DL / T801- 2002 "Large Generator Internal Cooling Water Quality and System Technical Requirements" and State Power Corporation "Twenty-five Key Requirements for Preventing Major Accidents in Electric Power Production" related to internal cooling water quality and system requirements, drawing on domestic and foreign large-scale generator i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C02F1/42
Inventor 徐锐吴三毛
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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