综合气候环境试验室载冷剂方案选择研究

摘要

Objective To select applicative and reasonable refrigerants for the cooling plant centre of combined climatic en-vironmental chambers.Methods The scheme of refrigerating system was proposed based on the analysis on refrigerating re-quirements of the laboratory. And the use condition and the factors to be considered of the refrigerants of the chambers was con-firmed based on the analysis on the operation principle of refrigerants. Then the scheme of the refrigerants used in combined climatic environmental chambers was summarized based on the analysis and comparison of the physical parameters of com-mon-used refrigerants.Results Dynalene HC-50 was selected as the refrigerant for the mid-temperature refrigerating system. Conclusion The refrigerant selected is applicable for the refrigerant system of cooling plant centre of the combined climatic en-vironmental chambers, and the scheme is reasonable.%目的：为综合气候环境试验室集中冷源选择适用、合理的载冷剂方案。方法通过对试验室制冷需求进行分析，制定试验室制冷系统方案。对载冷剂运行原理进行分析，得到综合气候环境试验室载冷剂使用工况和需要考虑的因素。最后综合分析和对比常用载冷剂的物性参数，总结出适用于综合气候环境试验室集中冷源的载冷剂方案。结果中温机组的载冷剂选择Dynalene HC-50。结论选择的载冷剂适用于综合气候环境试验室集中冷源载冷剂系统的使用工况，方案合理。