Cryogenic heater
OwnerAjit D. Mankekarinventor
Life of this patent
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Abstract
An apparatus for heating a confined liquid medium having a closed vessel with a heat transfer liquid therein, a burner housing within the vessel submerged in the heat transfer liquid, a burner having a fuel inlet and combustion air inlet, the burner having a flame outlet communicating with the interior of the burner housing, a flue conduit connected to the burner housing at a point spaced from the burner flame outlet and extending through the vessel wall and communicating with the atmosphere, a liquid medium heat exchanger supported within the vessel above the burner housing including an inlet and outlet conduit passing through the wall of the vessel and a transfer liquid heat exchanger within the burner housing intermediate the burner flame outlet and the flue conduit including means for passing the heat transfer liquid therethrough.
Claims5
Apparatus for heating a confined liquid medium comprising:
- a closed vessel having a heat transfer liquid therein;
- a burner housing within said vessel at least substantially submerged to said heat transfer liquid;
- a burner having a fuel inlet and combustion air inlet, the burner having a flame outlet communicating with the interior of said burner housing;
- a flue conduit connected to said burner housing at a point spaced from said burner flame outlet, the flue conduit extending sealably through the vessel wall and communicating with the atmosphere;
- a liquid medium heat exchanger in the form of at least one elongated horizontal conduit supported within the upper portion of said vessel externally of said burner housing including inlet and outlet conduits passing sealably through the wall of said vessel;
- a transfer liquid heat exchanger within said burner housing intermediate said burner flame outlet and said flue conduit, including at least one inlet and outlet passing sealably through the wall of said burner housing including means of circulating the heat transfer liquid therethrough;
- a pump having an inlet and outlet, the inlet having communication with said vessel;
- and
- a sparging tube positioned adjacent, parallel to, and below the liquid medium heat exchanger, the sparging tube being in the form of at least one elongated horizontal perforated tube and being connected to receive and discharge the flow of heat transfer medium from said pump.
Dependencies are inferred from the claim text.