火电机组循环水余热利用中吸收式热泵性能仿真  

作　　者：谭宏 王书辉 苏世铭 竺友刚 殷戈 徐浩然 

机构地区：[1]国能(泉州)热电有限公司,福建泉州362800 [2]国能南京电力实验研究有限公司,江苏南京210023 [3]河海大学机电工程学院(常州校区),江苏常州213200

出　　处：《工业控制计算机》2024年第7期139-141,共3页Industrial Control Computer

摘　　要：大型火电机组存在大量的低品位余热,如何实现低品位余热的高效利用显得尤为关键。针对火电机组循环化余热利用难题,提出了基于吸收式热泵的余热利用方案,系统分析了余热利用过程中吸收式热泵的性能。结果表明,驱动热源压力越大,低温循环水温度越高,热网回水温度越低,热泵机组的COP值越大,机组的整体经济性越好。Large thermal power units have a large amount of low-grade waste heat,and how to achieve efficient utilization of low-grade waste heat is particularly crucial.This paper proposes a waste heat utilization scheme based on absorption heat pumps to address the problem of recycling waste heat utilization in thermal power units.The performance of absorption heat pumps during the waste heat utilization process is systematically analyzed.The results show that the higher the pressure of the driving heat source,the higher the temperature of the low-temperature circulating water,the lower the return water temperature of the heating network,and the larger the COP value of the heat pump unit,and the better the overall economic performance of the unit.

关 键 词：火电机组 循环水余热 吸收式热泵 COP 

分 类 号：TM621[电气工程—电力系统及自动化]