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DUAL-RING AND STRAIGHT FIN TUBE CONDENSING

  • US 20150184888A1
  • Filed: 09/21/2013
  • Published: 07/02/2015
  • Est. Priority Date: 09/21/2012
  • Status: Active Grant
First Claim
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1. A heat exchanger for supplying heat, comprising:

  • a housing includes;

    a burner;

    a water inlet;

    a water outlet; and

    a flue gas outlet;

    the burner is disposed on a top portion of the housing and connected to an air/gas mixture unit;

    a first group of fin tubes are disposed tightly, circularly, and coaxially around the burner;

    a flue channel is disposed below the burner, the flue channel being formed by a second group of fin tubes, wherein a flow of flue gas vents from the flue channel to the flue gas outlet;

    the water inlet is connected to the second group of fin tubes which forms the flue channel below the burner;

    the second group of fin tubes below the burner are connected to the first group of fin tubes; and

    the first group of fin tubes are connected to the water outlet.

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