空气源热泵承压热水供应与全新风空调联供系统研究

针对华南地区某连锁酒店客房热水供应及该酒店商场空调需求,提出了空气源热泵承压热水供应与全新风空调联供系统方案,介绍了系统具体构成及关键部件的匹配设计计算方法,利用蓄热水罐、蓄冷风柜等蓄能装置和以PLC为核心的数据采集及控制手段,探讨了冷热需求不同步、冷热负荷不均衡的冷热联供固有局限问题的一种解决方案,并对实施的工程系统进行了全年性现场运行性能测试和分析调试。结果表明:该系统在可靠地满足该酒店热水供应的同时,又满足了该酒店商场夏季全新风降温空调的需求,该系统年平均综合能效比大于4.7,为空气源热泵冷热联供提供了一种工程实例。

Investigation of Combined System between Air Source Heat Pump System for Direct Hot Water Supply and Full Fresh Air Conditioning

In order to provide hot water supply for room and full fresh air conditioning for supermarket in a hotel efficiently, combined system between air source heat pump for direct hot water supply and full fresh air conditioning system was designed and implemented, and its matching algorithm was introduced. After using energy storage equipments as hot water storage tanks and cold storage air-conditioner cabinet, and applying PLC system for data acquisition and heat pump heating time control, a solution to the unbalanced load between heating and cooling was proposed. The running state and operating performance in a full year was tested. The results indicated that the system not only satisfied the requirement of hot water supply for room, but also realized the purpose of full fresh air conditioning for supermarket in the hotel. The average synthesis energy efficiency ratio in a year is over 4.7. The practice provided an example of air source heat pump system for combined heating and cooling supply.