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Falling film evaporator

  • US 20060080998A1
  • Filed: 10/12/2005
  • Published: 04/20/2006
  • Est. Priority Date: 10/13/2004
  • Status: Active Grant
First Claim
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1. A refrigeration system comprising:

  • a compressor, a condenser, an expansion device and an evaporator connected in a closed refrigerant loop; and

    the evaporator comprising;

    a shell having an upper portion and a lower portion;

    a tube bundle, the tube bundle having a plurality of tubes extending substantially horizontally in the shell;

    a hood disposed over the tube bundle, the hood having a closed end and an open end opposite the closed end, the closed end being disposed above the tube bundle adjacent the upper portion of the shell, the hood further having opposed substantially parallel walls extending from the closed portion toward the open portion of the shell;

    a refrigerant distributor disposed below the hood and above the tube bundle, the refrigerant distributor being configured to deposit liquid refrigerant or liquid and vapor refrigerant onto the tube bundle; and

    wherein the substantially parallel walls of the hood substantially prevent cross flow of the refrigerant between the plurality of tubes of the tube bundle.

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