System for recycling waste heat of nuclear power plant

Abstract

The invention discloses a system for recycling waste heat of a nuclear power plant. The system comprises a nuclear power plant steam condenser (1) and further comprises a heat pump system (2) and a heat use system (3). The cooling water output end of the steam condenser (1) is connected with the input end of the evaporation side of the heat pump system (2), and the cooling water input end of the steam condenser (1) is connected with the output end of the evaporation side of the heat pump system (2). The hot water supply input end of the heat use system (3) is connected with the output end of the condensation side of the heat pump system (2), and the hot water supply output end of the heat use system (3) is connected with the input end of the condensation side of the heat pump system (2). The heat pump system is directly connected with a cooling water way of the steam condenser, closed circulation of cooling water is achieved, on one hand, recycling of the heat is achieved, and on the other hand, output of the heat is reduced, and heat pollution to the environment is avoided.

Description

technical field [0001] The invention relates to a waste heat recovery system, in particular to a waste heat recovery system for nuclear power plants. Background technique [0002] The cooling heat of the condenser of the nuclear power plant accounts for 60% of the heat of the nuclear reactor, and its cooling mainly adopts the seawater direct-flow cooling method: the low-temperature seawater directly enters the condenser, and is discharged after internal heat exchange, thereby cooling the end of the condenser. The disadvantage of this method is that: the temperature of the discharged seawater is high, and a large amount of heat energy is directly discharged into the sea, which not only wastes heat, but also causes thermal pollution to the seawater; moreover, the seawater once-through cooling needs to process a large amount of seawater, and the processing cost is high. , and easily cause chemical pollution of water bodies. Contents of the invention [0003] The present inve...

AI Technical Summary

Problems solved by technology

The disadvantage of this method is that: the temperature of the discharged seawater is high, and a large amount of heat energy is directly discharged into the sea, which not only wastes heat, but also causes thermal pollution to the seawater; moreover, the seawater once-through cooling needs to process a large amount of seawater, and the processing cost is high. , and easily cause water chemical pollution

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