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US 2013/0152834 A1Published application
Heat exchanger
AssigneeJohnson Controls Technology Company
InventorsTabraiz Ali KHAN, Robert CABRERA, Gregory Kenneth REASER, Terry HILL
Life of this patent
Estimating the term…
Abstract
A furnace or other heat exchanger application for heating, ventilation, air conditioning and refrigeration systems having condensate control. Specifically, a condensate control for secondary heat exchangers is provided for use with high efficiency furnaces, particularly for small tonnage systems, such as residential or unitary systems. Condensate management permits a plurality of furnace orientations while providing resistance to corrosion due to liquid condensate.
Claims18
A furnace comprising:
- a first heat exchanger;
- a second heat exchanger downstream from the first heat exchanger;
- a first panel, the first panel being connected to the first heat exchanger and the second heat exchanger;
- a second panel positioned opposite the first panel, the second panel being connected to the first heat exchanger and the second heat exchanger;
- a first corrosion resistant body attached to the first panel, the first corrosion resistant body being positioned near the second heat exchanger to prevent condensate from the second heat exchanger from contacting the first panel;
- a second corrosion resistant body attached to the second panel, the second corrosion resistant body being positioned near the second heat exchanger to prevent condensate from the second heat exchanger from contacting the second panel;
- the first corrosion resistant body having a surface area less than the first panel;
- and
- the second corrosion resistant body have a surface area less than the second panel.
6 more elements
A heat exchanger comprising:
- a first panel;
- a second panel positioned opposite the first panel;
- a plurality of tubes, the plurality of tubes each having a first end connected to the first panel and a second end opposite the first end connected to the second panel, the plurality of tubes being positioned to permit flow of heat transfer fluid from the second end to the first end;
- a plurality of conduits, the plurality of conduits each having a first end connected to the first panel and a second end opposite the first end connected to the second panel, the plurality of conduits being positioned to permit flow of heat transfer fluid from the first end to the second end, the first ends of the plurality of conduits being positioned to receive heat transfer fluid form the first ends of the plurality of tubes;
- a first corrosion resistant body laminated to a surface of the first panel, the first corrosion resistant body being in physical contact with the plurality of conduits to prevent condensate from the plurality of conduits from contacting the surface of the first panel;
- and
- a second corrosion resistant body laminated to a surface of the second panel, the second corrosion resistant body being in physical contact with the plurality of conduits to prevent condensate from the plurality of conduits from contacting the surface of the second panel.
4 more elements
A method of assembling a heat exchanger comprising:
- connecting a plurality of tubes between a first panel and a second panel;
- connecting a plurality of conduits between the first panel and the second panel;
- laminating a first plate to the first panel, the first plate comprising a corrosion resistant material;
- laminating a second plate to the second panel, the second plate comprising a corrosion resistant material;
- conforming the first plate to first ends of the plurality of conduits to place the first plate in physical contact with the first ends of the plurality of conduits;
- and
- conforming the second plate to second ends of the plurality of conduits to place the second plate in physical contact with the second ends of plurality of conduits.
4 more elements
Dependencies are inferred from the claim text.