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R & D of the New Vacuum Freeze Dryer Using Environment-Friendly Refrigerant
Pages: 225-228
Year: Issue:  5
Journal:  Drying Technology & Equipment

Keyword:  GetLinkList(KeywordFilter('真空冷冻干燥机制冷剂替代环保')'kw''CJFQ');
Abstract: 鉴于真空冷冻干燥机制冷工质R22将于若干年后被淘汰(发达国家2020年前淘汰,发展中国家2040前被淘汰,中国可能于2030年前淘汰),为此上海远东制药机械总厂冻干设备厂进行了一系列实验研究,最终采用R404A替代R22,并取得了成功。R404A替代R22前几年已在中央空调、低温热泵、商业制冷机上获得应用(制冷温度一般在-30℃以上,常见诸报道),但在冷冻干燥低温领域(制冷温度-60~-80℃)尚未见有报道。
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