Evaluation of Component Cooling System based on Optimization Algorithm in HPR1000

Aiming at the problems of large design margin and low winter supply water temperature of cold chain systems such as equipment cooling water in power plants, an innovative design method is provided, which can be used to determine the system configuration and operation scheme in the overall design stage. Firstly, based on the basic principle of system heat balance, a thermal evaluation model is established, and an economic evaluation model is established based on the guiding ideology of improving economy as much as possible under safety and operating conditions. Then, based on the basic principle of optimization design, the multi-objective optimization algorithm and analysis program are developed. Finally, the above program is used to deal with the multi-objective optimization problems in the system design, and finally the system scheme evaluation is realized. The optimization evaluation results of the cooling water system of HPR1000 equipment are given, which significantly improves the economy of the power plant. It breaks through the traditional single-line design process which relies too much on design experience and is subject to insufficient quantitative analysis. In the adjustment of multi-discipline and multi-variable design scheme and parameter optimization, software decision-making is used to assist manual decision-making to shorten the design time and improve the accuracy.