分布式水源热泵区域供热系统的能耗特性研究

Study on Energy Consumption Characteristics of a Distributed Water Source Heat Pump District Heating System

本文从某分布式水源热泵区域供热项目近几年来的实际运行工况出发,对影响分布式水源热泵区域供热系统的能耗特性进行了分析,与同等容量的锅炉房供热系统相比,分布式水源热泵供热系统的一次能源利用率提高了82.6%。本文对影响分布式水源热泵区域供热系统的的主要因素进行了分析,输送半径在10公里之内的源水输配能耗约占系统总能耗的8%。二网水力不平衡问题可以造成能耗提高约20%。热泵机组的运行调节方案以及机组配置对能耗水平的影响约10%。

Based on the actual operating conditions of a distributed water source heat pump district heating project in recent years,this paper analyzes the energy consumption characteristics of the distributed water source heat pump district heating system.Compared with the boiler house heating system with the same capacity,the primary energy ratio of the distributed water source heat pump heating system has increased by 82.6%.In this paper,the main factors affecting the distributed water source heat pump district heating system are analyzed.When the transport distance of the source water is within 10 km,the energy consumption of source water transmission and distribution accounts for about 8%of the total energy consumption of the system.The hydraulic imbalance of the secondary pipe network can increase the energy consumption of the system by about 20%.Reasonable operation plan and the equipment configuration scheme of heat pump units can reduce system energy consumption by about 10%.