摘要
从节约能源、提高发电厂经济性的角度出发,研究了蒸汽压缩式、电压缩式、吸收式和压缩-吸收复合式4种热泵系统的有效制热系数,从理论上分析比较其技术经济性。然后以某发电厂的机组为研究对象,对比吸收式热泵和蒸汽驱动压缩式热泵供热方式的可行性与经济性。最后对驱动蒸汽的选择问题进行研究,提出以再热蒸汽驱动压缩式热泵,并对3种补充汽源的方式进行对比,对机组的经济性、初投资和财务进行分析。结果表明,将再热蒸汽作为压缩式热泵驱动能源,回收发电厂循环水中的低位热能进行供热,经济性较高,优于其他供热方式。
From the perspective of saving energy and improving the economic efficiency of power plants,the effective heating coefficients of steam compressed heat pump,motor-driven compressed heat pump,absorption heat pump and compressed-absorption heat pump are studied and the technical economy is analyzed theoretically.Then,a generating unit in a power plant is studied,and the feasibility and economy of the heating modes of the absorption heat pump and steam-driven compressed heat pump are compared.Finally,the selection of driving steam is studied and reheat steam for compressed heat pump driving is proposed;the three steam supplement modes are compared,and the economy,initial investment and finance of the units are analyzed.The result shows that the reheat steam used for compressed heat pump driving and the low heat energy recycled from circulating water of the power plant for heating is economical and superior to other heating methods.
作者
赵嘉
ZHAO Jia(Zhejiang Energy Yueqing Power Generation Co.,Ltd.,Yueqin Zhejiang 325600,China)
出处
《浙江电力》
2019年第2期104-109,共6页
Zhejiang Electric Power
关键词
蒸汽驱动压缩式热泵
有效制热系数
再热蒸汽
经济性
steam-driven compressed heat pump
effective heating coefficient
reheat steam
economy
