抽汽供热与循环水-水源热泵供热能耗分析  

Energy consumption analysis on extraction steam heating and circulating water-water source heat pump heating

作　　者：刘剑涛[1] 任建兴[1] 杨涌文[1] 李芳芹[1] 

机构地区：[1]上海电力学院能源与机械工程学院,上海200090

出　　处：《热力发电》2014年第3期14-20,共7页Thermal Power Generation

基　　金：上海市教委重点学科(第五期)(J51304)~~

摘　　要：以300MW机组为例，分析计算了火电厂抽汽供热与循环水-水源热泵供热2种方式的特点和能耗。结果表明，当水源热泵系统的能效比（COP）大于5．03时，循环水-水源热泵供热方式的节能效果较好。目前水源热泵在实际运行时COP为4．5～5．5，其供热能耗与抽汽供热相当。Taking a 300 MW unit as the example, the characteristics and energy consumpnon of two heating approaches, extraction steam heating and circulating water-water source heat pump （CW-WSHP） heating,were investigated. The results show that,when the coefficient of performance （COP） of the water source heat pump system is larger than 5.03,the CW-WSHP heating method has better energy saving effect than the extraction steam heating method. Due to limita- tion of the technology,the actual COP of the current water source heat pump is about 4.5 to 5.5. Therefore,the energy consumption of the CW-WSHP heating method is basically equivalent to that of the extraction steam heating method.

关 键 词：300 MW机组 抽汽供热 循环水 水源热泵 能耗 

分 类 号：TK115[动力工程及工程热物理—热能工程]