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针对空气源热泵供暖系统在低温环境下机组难以启动、室内供暖效果差且能量损失大等问题,将相变蓄能装置引入到热泵系统中,提出了空气源复叠式热泵系统。介绍了该系统的工作原理,分析了低温环境下系统的工作特性,结果表明,利用双级耦合热泵技术提高了机组的制热性能,从根本上解决了能量来源不足的问题。
Aiming at the problems that the air source heat pump heating system is difficult to start, the indoor heating effect is poor and the energy loss is large under low temperature, the phase change energy storage device is introduced into the heat pump system, and the air source cascade heat pump system is proposed. The working principle of this system is introduced, and the working characteristics of the system under low temperature are analyzed. The results show that the use of two - stage coupled heat pump technology improves the heating performance of the unit and fundamentally solves the problem of insufficient energy source.