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Water temperature monitoring method and blockage handling method for generator stator of 1000 megawatt nuclear power plant

A technology for generator stators and nuclear power plants, applied in nuclear power generation, nuclear power plants, nuclear power plant control, etc., can solve problems such as burnout, forced shutdown of stator windings, and easy blockage of stators, so as to avoid damage, ensure power generation efficiency, and solve The effect of clogging

Active Publication Date: 2012-01-18
GUANGDONG NUCLEAR POWER JOINT VENTURE +4
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a method for monitoring the stator water temperature of a generator set of a million-kilowatt nuclear power plant and a blockage treatment method for the current defect that the generator stator of a million-kilowatt nuclear power plant is easily blocked and causes forced shutdown or even stator winding burnout. In this way, the outlet water temperature of the stator can be monitored in real time, and the parameters of the generator can be adjusted according to the abnormal outlet water temperature or the stator blockage can be dealt with

Method used

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  • Water temperature monitoring method and blockage handling method for generator stator of 1000 megawatt nuclear power plant
  • Water temperature monitoring method and blockage handling method for generator stator of 1000 megawatt nuclear power plant
  • Water temperature monitoring method and blockage handling method for generator stator of 1000 megawatt nuclear power plant

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Embodiment Construction

[0043] In a generator of a million-kilowatt nuclear power plant, the material of the stator is copper, and cooling water is passed through the stator to cool the generator; in other words, the copper material of the stator in the above structure is in contact with water for a long time. It should be understood that in a high-purity water system at 25°C, copper can undergo an electrochemical reaction to form copper oxide, cuprous oxide or other copper compounds with low solubility in water. The above-mentioned corrosion products (electrochemical products) are deposited in the water after falling off the surface of the stator. Affected by the amount of deposits and other factors of the generator, if the deposits cannot be discharged in time, blockage may be caused. The specific principle process is briefly described as follows:

[0044]During shutdown, because the generator is in contact with a large amount of oxygen, a large amount of corrosion products (mainly copper oxide) wi...

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Abstract

The invention discloses a water temperature monitoring method and a blockage handling method for a generator stator of a 1000 megawatt nuclear power plant. The water temperature monitoring method for the generator stator of the 1000 megawatt nuclear power plant comprises the following steps of: determining the outlet water temperature of the stator under different working conditions, converting the determined outlet water temperature of the stator under different working conditions into the outlet water temperature of the stator under a benchmark working condition to obtain converted outlet water temperature, judging whether the outlet water temperature of the stator is abnormal or not according to the converted outlet water temperature, adjusting the outlet water temperature of the stator according to judgment results and handling the blockage of the stator. By monitoring the water temperature of the stator during the operation of the generator of the 1000 megawatt nuclear power plant, the abnormalities of the water temperature of the stator can be found in time, the parameters such as hydrogen pressure, bypass purification flow and the like of the generator can be effectively adjusted or the blockage of the generator stator can be handled, the generating efficiency of the generator can be ensured and the problems of too high generator temperature, forced shutdown or stator winding burnout can be avoided.

Description

technical field [0001] The invention relates to the key technology of a generator of a million-kilowatt nuclear power plant, and more specifically, the invention relates to a water temperature monitoring method and a blockage treatment method for a stator of a million-kilowatt nuclear power plant generator. Background technique [0002] The water-cooled turbogenerator (hereinafter referred to as the generator) used in the mega-kilowatt nuclear power plant is a kind of giant turbogenerator. In the generator mentioned above, both the stator winding and the rotor winding of the generator adopt hollow copper wires (called stator) and pass water to cool the generator. Because of the high specific heat of water, heat can be taken away directly during the flow process, which is beneficial to the heat dissipation of the generators of mega-kilowatt nuclear power plants during operation, so it can significantly improve the efficiency of generators, especially the generators of mega-ki...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G21D3/00G21D3/06G21C17/00
CPCY02E30/40Y02E30/00Y02E30/30
Inventor 于庆斌宋波张小重刘志强方军夏玉秋文杰沈星田新华高超周富涛姚雪鸿刘海河刘凯林沛
Owner GUANGDONG NUCLEAR POWER JOINT VENTURE
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