几种电厂冷凝热回收系统的节能经济性对比分析  

Comparison of the energy saving value of several systems of recovering condensation heat of power station

作　　者：林俊光[1] 胡亚才[2] 陈琦[2] 张卫灵[1] 钱海平[1] 徐红波[1] 卢婉珍[1] 

机构地区：[1]浙江省电力设计院,浙江杭州310012 [2]浙江大学 热工与动力系统研究所,浙江杭州301127

出　　处：《能源工程》2013年第5期55-58,共4页Energy Engineering

摘　　要：提出了两种新型的热泵回收冷凝热供热系统——汽水双热源供热量可调集中供热系统和电热泵回收冷凝热供热系统,并与现有的热泵回收冷凝热供热系统比较,分析比较各自的节能经济性。结果表明,汽水双热源供热量可调集中供热系统和电热泵回收冷凝热供热系统的经济效益比常见的吸收式热泵回收冷凝热供热系统分别高出33%和117.9%。对于296MW供热机组,汽水双热源可调集中供热系统和电热泵回收冷凝热供热系统每年可分别减排二氧化碳10万t和11.5万t。电热泵回收冷凝热供热系统节约的冷却水量要远高于其他两个系统,这对北方缺水地区意义重大。Two new systems of recovering condensation heat with the heat pump for heat supply system were presented. An adjustable heat load with double heat sources of steam and water for distributing heat supply, integrating the condensation heat recovery system with electric heat pump were compared with the common absorption heat pump recovery system. The economy benefit of each system was analyzed consequently. The results show that the quantity of energy saving of the adjustable heat load with the double heat sources system and recovering condensation heat with electric heat pump are higher than current heat pump systems in recovering condensation by 33.3% and 117. 9% respectively. For the 296MW heat supply unit, the annual reduction of carbon footprint of the double heat sources system and recovering condensation heat with electric heat pump are 100,000 tons and 115,000 tons respectively. Among three systems, the recycling water consumption of electric heat pump heat recovery system is much greater than that of other two systems, therefore, such circumstance should be carefully considered in the water-deficient area of north china.

关 键 词：冷凝热回收 热泵 节能 集中供热 

分 类 号：TK11[动力工程及工程热物理—热能工程]