Cryo-mechanical combination freezer
    9.
    发明公开
    Cryo-mechanical combination freezer 失效
    机械组合冷冻机

    公开(公告)号:EP0360224A3

    公开(公告)日:1990-05-16

    申请号:EP89117310.6

    申请日:1989-09-19

    IPC分类号: F25D16/00

    CPC分类号: F25D16/00

    摘要: This invention pertains to a method and apparatus for cooling and freezing of organic-­comprised articles which makes use of liquid cryogen and of chilled gases from a mechanical refrigeration system to reduce the temperature of the article. The article is contacted with a liquid cryogen (80) and subsequently contacted with circulating cold gases (90) in the mechanical refrigeration system (76). The improvement relates to the method and apparatus for producing the cold gases (90) which are used in the mechanical refrigeration system (76); the method comprises using the cryogen vapors (78) generated upon contact of the articles with the liquid cryogen (80) as an indirect heat exchange fluid for removing heat from heat exchange fluids used in the mechanical refrigeration system (76). This indirect heat transfer using cryogen vapors (78) supplements cooling of the mechanical refrigeration system cold gases (90) by the mechanical refrigeration system chiller (96).