本文在对一种新型热管———泵或风机驱动的动力型分离式热管 (简称热环 )进行简要介绍的基础上 ,对热环应用于变温冷热源时所需的非共沸混合工质的要求、优选方法进行了研究 ,并为造纸、食品等行业的典型工况优选了一组非共沸循环工质 Based on a brief introduction of a new type of heat pipe --- pump or fan driven power split type heat pipe (referred to as heat ring), this paper introduces the non-azeotropic mixer Quality requirements, preferred methods were studied, and papermaking, food and other industries in the typical operating conditions preferred a group of non-azeotropic circulating refrigerant