Modular surface-type indirect air cooling system for nuclear power plants in severely water-scarce regions

Abstract

The invention discloses a modularized surface indirect air cooling system applicable to a nuclear power plant in a region with severe water shortage. The modularized surface indirect air cooling system comprises a first circuit, a second circuit and a third circuit which are successively connected. The first circuit is a circuit composed of a reactor, a main pump and a vapor generator; the second circuit is a circuit composed of a vapor generator, a feed pump, a condenser and a steam turbine; and the third circuit comprises a condenser, a high-temperature mainstream pipe and a low-temperature mainstream pipe separately connected with the condenser, a modularized air cooling system arranged between the high-temperature mainstream pipe and the low-temperature mainstream pipe and a circulating water pump arranged on the low-temperature mainstream pipe. The modularized surface indirect air cooling system provided by the invention has good economic performance, can make full use of the topographical advantages of the region with severe water shortage and has the advantages of simple construction, low construction cost, small initial investment, convenient later maintenance, capacity of preventing influence of a large-size cooling tower on the whole nuclear power plant caused by irresistible force, and saving of cost used for construction of the large-size cooling tower.

Description

technical field [0001] The invention belongs to the field of energy, and in particular relates to a modular surface-type indirect air cooling system for nuclear power plants in severe water shortage areas. Background technique [0002] my country is a country with poor water resources, and nuclear power plants consume a lot of water, and the largest water consumption is circulating cooling water. At present, the nuclear power plants that have been built in China are all located in coastal areas, and all adopt seawater direct current cooling method, and there is no limit. With the continuous construction of nuclear power plants, it will become possible to build nuclear power plants in areas with severe water shortages. However, one of the most prominent problems currently restricting the construction of nuclear power plants in severe water shortage areas is what kind of circulating water cooling system to use to meet the safe and stable operation requirements of nuclear powe...

AI Technical Summary

Problems solved by technology

However, due to the high cost of large-scale cooling towers, the difficulty of construction and maintenance in severe water-shortage areas, the inability to continuously adjust according to specific conditions, and the failure of cooling towers due to force majeure factors that may cause the shutdown of the entire nuclear power plant, we are looking for a solution that is suitable for severe water shortages. area, and more economical, more convenient construction and maintenance, safer and more stable system operation, more flexible adjustment surface indirect air cooling system is very important

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