水源热泵结合蓄能空调系统的应用

Application of Water Source Heat Pump System Combined with Energy Storage

针对水源热泵技术与蓄能技术结合的系统方案和优点进行了分析,讨论了水源热泵结合蓄能空调系统在具体应用中的一些关键问题和难点,包括系统动态逐时负荷的准确预测、蓄能模式的选择确定、机组设备的合理配置以及运行控制的有效保障,并通过典型实例分析说明了水源热泵与蓄能技术结合系统的经济性和节能性.结果表明,为了充分发挥两种技术的优点,基于准确负荷预测基础上的优化控制是使整个空调系统高效经济运行的重要保障.

The water source heat pump(WSHP) has the advantages of improving operation efficiency of machine,saving energy and protecting environment.Energy storage technology can balance power net between peak and low power loads,and reduce chiller size and operation cost.The integration system of these two technologies was introduced,and the key problems on the air-conditioning system integrated WSHP and thermal storage were analyzed,including accurate prediction of transient heating/cooling loads,selection of thermal storage plan,optimized matching of machines and controlling strategies.Typical examples were presented to explain the energy-efficiency and cost-effectiveness of the integration system.It shows that the optimal controlling strategy based on the accurate load prediction can maximize the advantages and avoid the disadvantages of these two technologies.