关于城市污水热能资源化相关概念和分类的探讨

从污水热能利用的技术角度将城市污水分为原生污水、一级污水、二级污水三大类,分析了不同污水的应用特点和应用前景,指出原生污水的热能利用在未来所占的主导地位。定义和区分了污水热能资源化、污水类冷热源、污水源热泵、污水源热泵系统等概念,指出了它们的类属关系和各自的地位。从技术角度对污水源热泵系统进行了分类,比较了直接和间接污水源热泵系统的优缺点,指出直接系统具有巨大的发展前景。介绍了直接系统的两种可实现的形式。

Concepts and classification concerning municipal sewage heat energy utilization

Classifies the municipal sewage as crude sewage, primary sewage and secondary sewage from the aspect of heat energy exploitation.Analyses the application characteristics and prospects,and states that the crude sewage will be the main source of heat energy usage in the future.Clarifies the concepts such as the sewage heat energy utilization,sewage-like cold/heat sources,sewage source heat pump,sewage source heat pump system(SSHPS),and points out their categorical relationship and status.Classifies the SSHPS as direct systems and indirect systems,compares their merits and faults,and indicates that the direct system has huge space to be developed.Presents two realizable forms for this system.