Feasibility analysis of urban sewage source heat pump system with freezing latent heat collection  

污水源采集凝固热热泵系统的可行性分析(英文)

作　　者：钱剑峰[1,2] 张吉礼[1] 

机构地区：[1]大连理工大学土木工程学院,大连116024 [2]哈尔滨商业大学能源与建筑工程学院,哈尔滨150028

出　　处：《Journal of Southeast University(English Edition)》2010年第2期324-326,共3页东南大学学报（英文版）

基　　金：The National Key Technology R&D Program of Chinaduring the 11th Five-Year Plan Period(No.2008BAJ12B05-05);the Research Foundation of Education Bureau of Heilongjiang Province,China(No.11551114);the China Postdoctoral Science Foundation(No.20100471438).

摘　　要：Aiming to resolve the problem that conventional sewage source heat pump systems cannot satisfy heat peak loads of buildings,a new idea that the freezing latent heat is exacted as the auxiliary heat source at the peak heat load is proposed.First,on the basis of sewage characteristics,a freezing latent heat exchanger is developed to safely eliminate ice,continuously extract heat and remove sewage soft-dirt.A reasonable form of the urban sewage source heat pump system with freezing latent heat collection is presented.Then,the feasibility of the system is theoretically analyzed.The calculation results under typical operating conditions show that the heating ability of the new system is higher than that of the conventional one and the ratio of these two highest heating rates is between 4.5 and 8.7,which proves that the new system has great application potential in cold regions.针对常规污水源热泵系统出力常无法满足建筑最大负荷的问题,提出了在高峰负荷下提取污水凝固潜热作为补充热源的新思路.首先,结合污水特征设计了一种集除冰、取热、除垢于一体的凝固换热器,并给出了城市污水源采集凝固热热泵的合理形式.然后,从理论上分析探讨了新系统的供热潜力.典型的工况计算结果表明,采集凝固热热泵系统的供热能力大于常规城市污水源热泵系统,两者的最大供热率之比在4.5～8.7之间,说明该污水源采集凝固热热泵系统在寒冷地区的应用潜力较大.

关 键 词：urban sewage freezing latent heat heat pump FEASIBILITY 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]