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Alkalescent water-quality treatment and treating system for double-internal water-cooled generator

A double-water internal cooling and water quality treatment technology, which is applied in the direction of adsorption water/sewage treatment, neutralization water/sewage treatment, ion exchange water/sewage treatment, etc. Independently adjust the pH value and conductivity of the inner cooling water to achieve the effect of reducing the corrosion rate and inhibiting corrosion

Inactive Publication Date: 2007-01-17
ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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  • Application Information

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Problems solved by technology

At present, the internal cooling water of some double water internal cooling generators uses condensed water, because it contains NH 3 The conductivity of the condensed water itself is relatively high, even exceeding 5us / cm, which leads to a very limited range for adjusting the water quality of the internal cooling water of the generator, and this method cannot independently adjust the pH value and conductivity of the internal cooling water. When the condenser leaks, the condensed water will also affect the internal cooling water system, which will lead to shutdown accidents in severe cases

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  • Alkalescent water-quality treatment and treating system for double-internal water-cooled generator
  • Alkalescent water-quality treatment and treating system for double-internal water-cooled generator
  • Alkalescent water-quality treatment and treating system for double-internal water-cooled generator

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Embodiment Construction

[0027] figure 1 is an embodiment of the present invention. The internal cooling water main circulation system of the generator is mainly composed of a generator 1, an internal cooling water tank 2, and an internal cooling water pump 3. Install a bypass system on the main circulation system. The bypass water flows sequentially through the resin trap 4, the cation exchanger 5, the precision filter 6, the EDI unit 7, and finally returns to the inner cooling water tank. The bypass water flow is controlled at 2-6t / h.

[0028]The resin filled in cation exchanger 5 can be strongly acidic cationic resin, weakly acidic cationic resin, chelating resin, NH 4 Type cation resin, Na type cation resin, K type cation resin. The amount of resin should be determined according to the parameters of the generator set and the characteristics of the internal cooling water system. In order to prevent clogging of the EDI unit, the index of the precision filter 6 is required to be no more than 2 μ...

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Abstract

Cold water alkalescent water-quality treatment and treating system for dual-water internal cooling generator are disclosed. By-pass water treating system is installed on cold water main circulation circuit in dual-water internal cooling generator, hardness, copper, iron, corrosive product and granular purity are trapped in by-pass system utilizing cationic exchanger, cold water conductivity is controlled by EDI unit to improve pH value and regulate alkalescence. It has better internal cold water treating ability and can inhibit corrosion.

Description

technical field [0001] The invention relates to a method and system for treating slightly alkaline water quality of internal cooling water of a double-water internal cooling generator, belonging to the technical field of electrical engineering. Background technique [0002] Compared with the water-hydrogen-hydrogen cooled generator, the stator of the generator is cooled by water, and the rotor and iron core are cooled by hydrogen gas. Since the rotor of the double water internally cooled generator is difficult to seal, the carbon dioxide and oxygen in the air are continuously dissolved in the interior. In cold water, the pH value decreases and the dissolved oxygen content increases. Oxygen-containing slightly acidic cooling water has a corrosive effect on the copper wire rod of the generator, and it is difficult to maintain the slightly alkaline inner cooling water by using ion exchange resin, and it is also difficult to control the corrosion of copper. Therefore, compared w...

Claims

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Application Information

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IPC IPC(8): C02F1/42C02F1/469C02F1/44C02F1/66C02F1/28
Inventor 裴锋
Owner ELECTRIC POWER RES INST STATE GRID JIANGXI ELECTRIC POWER CO
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