High efficiency hot water boiler
AssigneeConservation Technologies, Inc.
InventorsGeorge C. Terrell, Andrew Konnerth, III
Life of this patent
Estimating the term…
Abstract
Apparatus and method for high efficiency transfer of heat from a combustion process to a working fluid wherein the combustion flame directly impinges upon a special material in contact with conduit means for directing the flow of the working fluid. The hottest part of the flame may be adjusted to directly contact such material. The apparatus in which such process takes place is subjected to a pressure gradient, directed from the top to the bottom of said apparatus such that the combustion gases are downwardly directed through the device for secondary heating of said working fluid prior to exhaust therefrom.
Claims21
A high efficiency heat exchange device comprising a housing, a first heat exchange manifold disposed within said housing and forming a lower floor of a combustion chamber disposed directly thereabove, a second heat exchange manifold disposed within said housing and positioned below said first manifold, said manifolds spaced apart from each other by baffles forming first labyrinth passages, said manifolds including conduit means, means causing a fluid working medium to flow through said conduit means so as to heat said medium, means for introducing and burning a hydrocarbon fuel in said combustion chamber and for directing the resultant flame downwardly towards said first heat exchange manifold, means for exhausting the combustion gases of said burning outside of said housing, means for introducing a pressure gradient from top to bottom in said housing whereby said combustion gases are downwardly directed over and under said manifolds prior to their exhaust from said housing.
A high efficiency heat exchange device comprising a housing, a first heat exchange manifold disposed within said housing and forming a lower floor of a combustion chamber disposed directly thereabove, said manifold adapted to receive a film of fused metal oxide to cover the top surface of said heat exchange manifold, means for introducing and burning a hydrocarbon fuel in said combustion chamber and for directing the resultant flame downwardly towards said heat exchange manifold whereby the hottest part of said flame may directly impinge upon said oxide film, means for exhausting the combustion gases of said burning outside of said housing, means for introducing a pressure gradient from top to bottom in said housing whereby said combustion gases are downwardly directed over said manifold prior to their exhaust from said housing, and means causing a fluid working medium to flow through said heat exchange manifold so as to heat said medium.
A high efficiency method of heating a working fluid in a heat exchange device including a housing, a first heat exchange manifold disposed within said housing and forming the lower floor of a combustion chamber disposed directly thereabove, said manifold including conduit means having a flame shield provided thereon and in direct contact therewith, comprising, introducing a hydrocarbon fuel and oxygen into said combustion chamber and igniting the same, directing the resultant flame downwardly against said conduit means with the hottest part of said flame generally directly impinging thereon so as to establish a high temperature gradient between said flame and said conduit means such that the working fluid rapidly absorbs heat from said flame, maintaining a pressure gradient in said housing so that the lower part thereof is at a lower pressure and thereby directing the combustion gas from said burning over said manifold and directing working fluid through said conduit so that heat from said flame is transferred through said conduit means to said working fluid.
Dependencies are inferred from the claim text.