Invention Grant
US08661838B2 Central vacuum cooling plant 有权
中央真空冷却厂

  • Patent Title: Central vacuum cooling plant
  • Patent Title (中): 中央真空冷却厂
  • Application No.: US12794827
    Application Date: 2010-06-07
  • Publication No.: US08661838B2
    Publication Date: 2014-03-04
  • Inventor: Louis Schwartz
  • Applicant: Louis Schwartz
  • Applicant Address: DK
  • Assignee: FLSmidth A/S
  • Current Assignee: FLSmidth A/S
  • Current Assignee Address: DK
  • Agent Daniel DeJoseph; Aaron M. Pile; Jeffrey A. Sharp
  • Main IPC: F25B19/00
  • IPC: F25B19/00
Central vacuum cooling plant
Abstract:
Described is a method as well as an apparatus for vacuum cooling of food produce through moisture removal, which method comprising the steps of loading the food produce to be cooled into a vacuum chamber, lowering the pressure inside the vacuum chamber to a predetermined pressure level and maintaining the vacuum chamber at this predetermined pressure level both by removing air through a vacuum pump system for a sufficient of time to allow heat transfer out of the food produce to take place, and condensing water vapor inside the vacuum chamber through a refrigeration system. The method and apparatus is unique in that the step of lowering the pressure inside the vacuum chamber to the predetermined pressure level is carried out using a single stage vacuum pump and the step of maintaining the vacuum chamber at this predetermined pressure level is carried out using a two stage vacuum pump.
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