采用CO2制冷剂的溜冰场制冷系统——介绍加拿大魁北克省一溜冰场制冷系统的更新改造案例

摘要

本文介绍了世界上第一台溜冰场用的采用CO2制冷剂的制冷系统。该项目是一个完全采用R744制冷剂(CO2)来代替原有的R22/甲醇制冷系统，获得很大的节能效果。%　　In this paper the world’s first CO2 based refrigeration system used in ice rink is introduced. This project is a unique refrigeration system that uses the natural refrigerant R744 as primary and secondary working fluid to replace the existing R22 chiller/methanol system and a significant energy saving is achieved.