大型中水源热泵区域供热系统的运行工况分析

Operating Conditions of a Large Reclaimed Water Source Heat Pump System

介绍了桥东中水源热泵一期工程实施的技术方案,以该项目的一期工程为例,对该热泵区域供热系统的实际运行工况进行了分析,不考虑管网系统能耗的情况下,2个中水源热泵站系统的一次能源利用率分别为1.229和1.204,相比于锅炉房系统,一次能源利用率分别提高了87.9%和85.2%,加入区域管网的能耗之后,整个系统的能效比达到了4.01,一次能源利用率提高了75%。计算得到输送能耗占系统总能耗的5.3%,整个系统的运行成本为10.2元/m2,说明利用中水源热泵区域供热系统具有经济可靠性。

This paper introduces the technology solutions of the Qiaodong Reclaimed water source heat pump district heating project. Taking the project phase I as an example, we analyzed the actual operating conditions of the Reclaimed Water Source Heat Pump System （RWSHPS）. Only considering the energy consumption of distributed heat pump stations without the energy consumption of pipe network, the primary energy utilization rate of the two stations respectively were 1.229 and 1.204, which increased by 87.9% and 85.2% comparing to the boiler heating system. The whole RWSHPS was analyzed, which includes pipe network distribution system and distributed heat pump stations, its COP reached 4.01, and the primary energy utilization rate increased by 75%. The transportation energy consumption accounted for 5.3% of total energy consumption, and operating costs of the entire system is 10.2 yuan/（m^2·a） in heating season. It indicates the reliability of the RWSHPS in terms of economic.