基于塑铝管改进的城市污水热能供热系统

为了回收和利用城市污水热能,研制了以水源热泵为中心设备的污水热能回收和利用的实验系统。成功地获得了用塑铝管间接换热回收污水热能的技术方法,解决了污水热能利用的关键性问题,即换热设备的腐蚀问题,为污水热能实际工程应用奠定了技术基础。研究结果表明:污水热能回收实验系统满足冬季供热负荷的要求;系统平均供热系数为3.2,具有良好的环保性和节能性。

Heat supplying system by urban sewage heat energy based on platistic-Al-pipe-improved

In order to recover the urban sewage heat energy,a lab-scale equipment for the sewage heat energy recovery based on water source heat pump was developed and researched experimentally.The technique of indirect heat exchange by the plastic-Al pipe to recover the urban sewage heat energy was introduced to overcome the key problem in the utilization of the urban sewage heat energy,i.e.,the corrosion of the heat exchanger,laying the foundation for the practical utilization of sewage heat energy.The experimental results show that the developed system is favorable to the environment protection and energy conservation,satisfying the heat duty requirement with the average coefficient of performance 3.2.