Generator internal cold water qality treatment method and its device

Abstract

This invention discloses a water quality process method and a device for cold circulation water in the generator characterizing in filling oxygen and Pd catalyst into cold circulation water to let the copper lead inside wall form a protection layer of Cu2O when the generator begins operating, when it works normally, catalyst Pd keeps the oxygen thickness at minute quantity in the cold water and the deposited copper is oxidized at once. Ionic exchange resin removes the electrolytes CO2, Cu+ and Cu2+, so that the electric conductivity is less than 2.0mus / cm,an alkali adding device adds alkali to the cold circulation water automatically to regulated PH at 8-9 to secure insulation of the water and reduce copper corrosion and deposition.

Description

technical field [0001] The invention relates to a water quality treatment method and a device for internal cooling circulating water of large and medium-sized generators, and belongs to the field of electrical engineering. Background technique [0002] The stator or rotor coils of large and medium-sized generators are usually cooled by high-purity water, the cooling water is recycled, and the O in the air 2 , CO 2 It will dissolve into the cooling water, reduce the PH value of the cooling water, and the copper wire will be corroded; and produce electrolyte Cu + 、Cu 2+ and CuO, Cu 2 O sediment, especially in the non-metallic pipe at the junction of the copper wire and the insulated water pipe, the redox potential is very high, and the sediment accumulation is particularly serious; the sediment will reduce the flow path of the hollow copper wire and the flow of cooling water In particular, the conductivity of metal copper deposits will reduce the insulation performance sha...

AI Technical Summary

Problems solved by technology

[0004] A very small number of power plants also add corrosion inhibitor BTA to the cooling water to form an anti-oxidation protective film on the inner wall of the hollow copper wire, but there are several disadvantages: 1. The thermal conductivity of the protective film is low, and the cooling effect is not very good; 2. . Since the corrosion inhibitor BTA is a weak electrolyte, there are no characteristic parameters that can be used for online detection, and automatic control cannot be performed. It is difficult to maintain the water quality parameters within the required range by manual sampling analysis and manual addition of corrosion inhibitors; 3. Protective film The structure is unstable, the strength is low, and it is easy to be damaged. It needs to be repaired by adding corrosion inhibitors frequently

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