污水换热器的设计计算
Design calculation of sewage heat exchangers
摘要：
污水的流动与换热性能与清水相比有很大的不同，设计污水换热器时不能简单地套用针对清水换热器的设计参数和设计方法。根据实验研究结果与工程实践经验，基于污水的流动阻力与换热特性，给出了污水换热器的设计要点和设计所必需的重要参数。
关键词：污水源热泵 污水换热器 设计 计算
Abstract：
The design parameters and design methods of clear water heat exchangers can not be simply applied to sewage heat exchangers (SHE) because of the great difference in heat transfer and flow characteristics between sewage and clear water. According to the experimental research and engineering practice in recent years and based on the flow resistance and heat exchanger characteristics of sewage, gives out the design points and essential parameters of SHE.
Keywords:sewage source heat pump, sewage heat exchanger, design， calculation