火电机组循环水余热利用中吸收式热泵性能仿真
谭宏 1王书辉 1苏世铭 1竺友刚 2殷戈 2徐浩然3
作者信息
- 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
- 折叠
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.
Abstract
Large thermal power units have a large amount of low-grade waste heat,and how to achieve efficient utiliza-tion of low-grade waste heat is particularly crucial.This paper proposes a waste heat utilization scheme based on absorp-tion heat pumps to address the problem of recycling waste heat utilization in thermal power units.The performance of ab-sorption 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/COPKey words
thermal power unit/waste heat of circulating water/absorption heat pump/COP引用本文复制引用
出版年
2024
NETL
NSTL
万方数据