碳氢制冷剂在大中型商用设备的研究现状

Research Status of Hydrocarbons as Refrigerants on Large and Medium-sized Commercial Equipment

碳氢制冷剂的ODP=0,GWP极低,环保性能优良,热物理性质良好,可以作为未来制冷剂的备选方案。主要从商用热泵、超市复叠系统以及其他商用设备几个方面对碳氢应用于大中型商用设备的研究现状进行了综述。研究表明:碳氢制冷剂在系统实际运行中总体性能表现优良,对于其可燃性,国内外学者采取了减少充注量的措施,如采用微通道换热器、板式换热器等紧凑式换热器,采用间接式制冷系统,以确保碳氢制冷系统的安全运行。

Hydrocarbons,whose environmental performance（ ODP = 0,GWP is extremely low） and thermophysical properties is excellent,can be selected as future alternative refrigerants. The research status of the application of HCs on large and medium-sized commercial equipment is introduced from aspects of commercial heat pumps,cascade system for supermarkets and other commercial equipment.Researches indicate that hydrocarbons behave well in the actual operation of the refrigeration system. Measures of reducing the refrigerant charge due to flammability,such as using micro-channel,plate heat exchanger,adopting indirect systems,are taken to make sure safe operation of refrigeration system.