城市原生污水冷热源换热管软垢特性研究  

Research on the Soft-dirt Characteristic of Heat-exchanging Pipe in Using Urban Original Wastewater as Cool and Heat Source

作　　者：吴荣华[1] 张承虎[1] 孙德兴[1] 马广兴[1] 

机构地区：[1]哈尔滨工业大学,黑龙江哈尔滨150090

出　　处：《流体机械》2006年第1期59-62,共4页Fluid Machinery

基　　金：国家自然科学基金项目(50578048)

摘　　要：利用城市原生污水作为热泵冷热源时,换热管软垢生长特性是要考虑的重要问题。以实际应用的污水换热器为实验对象,测试了换热器换热性能、软垢随时间与流速的增长特性,分析了软垢热阻及其对传热性能的影响。同时发现,以水力反冲方法实现软垢的清洗具有可行性。When using the arban original wastewater, a key factor is the characteristic of the soft dirt. Based on the wastewater heatexchanger in actual engineering, the performance of heat-exchanging and the dirt growth as time and velocity increasing were tested, and the dirt resistance and its influence to the heat exchanging characteristic was analyzed. So it＇ s possible to wash the dirt by hydraulic reactive method.

关 键 词：城市原生污水 冷热源 软垢厚度 增长特性 热阻特性 

分 类 号：TU831.6[建筑科学—供热、供燃气、通风及空调工程]