节能高效空气源复叠式热泵系统
Energy-efficient cascade air-source heat pump system
摘要：
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。
关键词：空气源复叠式热泵,双级耦合热泵,低温环境,相变蓄能
Abstract：
Aiming at the initiating difficulties, poor indoor heating effect and high energy loss of an air-source heat pump heating system in low temperature conditions, presents the cascade air-source heat pump system by introducing the phase change thermal storage equipment. Expounds the operating principle and analyses the operating characteristics in low temperature conditions. As a result, the heating performance is improved by the double stage coupling heat pump technology, and the energy shortage is overcome.
Keywords:cascade air-source heat pump, double stage coupling heat pump, low temperature condition, phase change thermal energy storage