着重论述使用CO2天然性流体作为工质的热泵技术的发展,这种CO2热泵可以利用大气、江河中的能量,并将其能量的品质提高,为用户所用.改进CO2跨临界循环系统的循环方式,优化系统设计是CO2跨临界循环推广应用的关键.文中提到几种循环方式,有的已被广泛应用,有的循环方式还处在理论和实验研究中,这些都代表着CO2跨临界循环热泵技术未来的发展方向,随着技术的进步,CO2跨临界循环系统的循环方式会得到不断地改进和完善.%In this paper, the development of heat pump technology using CO2 natural fluid as working medium was presented. The CO2 heat pump can utilize the energy from atmosphere and rivers, and improved the quality of energy for user. For the popularization and application of CO2 transcritical system, the improvements of cycle way and optimization design of system are critical factors. Some cycle ways mentioned in this paper have already been widely used. However some are still in the stage of theory and experiment at present. These ways represent the development trend of CO2 transcritical cycle heat pump technology in the future. The cycle ways of CO2 transcritical system, we believe, will be improved and perfected continuously with the development of technology.
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