夏热冬冷地区利用空气源热泵回收火力发电厂汽轮机房余热的实践  

Practice of using air-source heat pumps to recover waste heat from steam turbine hall of a thermal power plant in hot summer and cold winter zone

作　　者：倪明龙 盛帮明 陈千凯 周萌 陈海旎 施婷 王志盟 Ni Minglong;Sheng Bangming;Chen Qiankai;Zhou Meng;Chen Haini;Shi Ting;Wang Zhimeng(China Energy Engineering Group Jiangsu Power Design Institute Co.,Ltd.,Nanjing)

机构地区：[1]中国能源建设集团江苏省电力设计院有限公司,南京

出　　处：《暖通空调》2024年第10期128-131,79,共5页Heating Ventilating & Air Conditioning

基　　金：中国能源建设集团江苏省电力设计院有限公司科技项目“利用空气源热泵回收火电厂汽机房余热的方案研究”(编号:32-JK-2024-002)。

摘　　要：以国内某大型清洁高效燃煤发电厂汽轮机房为例,对冬季室内散热量、温度分布情况进行了分析,提出了利用空气源热泵回收汽轮机房空气余热的方案。分析了不同环境温度和出水温度下的空气源热泵性能系数(COP)变化情况,并拟合了数学模型。结果表明,该工程供暖期空气源热泵机组平均COP提升约20%,最冷时段内COP提升近32%,年节约电量约2.3万kW·h,节能效益显著。Taking the steam turbine hall of a large clean and efficient coal-fired power plant in China as an example,the indoor heat dissipation and temperature distribution in winter are analysed,and a scheme of using air-source heat pumps to recover the air waste heat from the steam turbine hall is proposed.The COP variation of the air-source heat pumps under different environmental and water outlet temperatures is analysed,and the COP mathematical model is fitted.The results show that the average COP of the air-source heat pump units of the project during the heating period increases by about 20%,and the COP increases by nearly 32% during the coldest period,saving about 23000 kWh of electricity annually,and the energy saving benefit is significant.

关 键 词：夏热冬冷地区 汽轮机房 余热 空气源热泵 供暖 节能 

分 类 号：TU83[建筑科学—供热、供燃气、通风及空调工程]