Heat exchanger

Heat exchanger

  • CN 105,593,625 B
  • Filed: 08/15/2014
  • Issued: 06/30/2020
  • Est. Priority Date: 08/23/2013
  • Status: Active Grant
First Claim
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1. A heat exchanger adapted for use in a vapor compression system, comprising:

  • a housing having a longitudinal central axis extending generally parallel to a horizontal plane, the housing having a liquid discharge opening from which a discharge tube extends toward an outside;

    a distribution member disposed inside the housing and configured and disposed to distribute a refrigerant;

    a tube bundle comprising a plurality of heat transfer tubes disposed inside the shell below the distribution component such that refrigerant discharged from the distribution component is supplied onto the tube bundle, and the heat transfer tubes extend generally parallel to a longitudinal central axis of the shell, the tube bundle having;

    a falling film zone disposed below the distribution member,an accumulation region disposed below the falling film region, the accumulation region having one or two layers of heat transfer tubes, anA flooded area disposed below the accumulation area at a bottom of the housing, the flooded area having a bottom wall portion, a pair of side wall portions, a pair of lateral ends, and a fluid communication tube extending upwardly from an inner surface of the housing at the liquid discharge opening to the bottom wall portion of the flooded area, the fluid communication tube having a tube opening adjacent the housing, and the fluid communication tube being aligned with the discharge tube;

    a trough member extending generally parallel to the longitudinal central axis of the housing below the at least one heat transfer tube in the accumulation region such that the refrigerant accumulates in the trough member and partially overlaps the at least one heat transfer tube in the accumulation region when viewed along a horizontal direction perpendicular to the longitudinal central axis of the housing.

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