Crude and waste oil burner
OwnerCatherine J. Chagnotinventor
Life of this patent
Estimating the term…
Abstract
A burner capable of burning crude or other heavy oil. A combustion chamber is surrounded by a wall of thermal insulation. An air-fuel injector pipe extends through the wall and opens into the combustion chamber. An oil supply pipe extends along the interior of the air fuel injector pipe to an inner open end that is proximate the inner end of the air-fuel injector pipe. A venturi insert is fixed within the air-fuel injector pipe and has an orifice positioned outward of the open inner end of the oil supply pipe. A combustion air supply including a blower and a recuperator transfers heat from outgoing combusted exhaust gases to incoming combustion-supporting air being blown through the recuperator and the air fuel injector pipe into the combustion chamber.
Claims20
A burner capable of burning crude or other heavy oil fuel from a fuel supply, the burner including a combustion chamber surrounded by a wall that includes thermal insulation, the burner comprising:
- (a) an air-fuel injector pipe extending from an outer open end through the wall and opening into the combustion chamber at an inner open end;
- (b) an oil supply pipe having an outer end for connection to the fuel supply and extending into and along the interior of the air fuel injector pipe to an inner open end of the oil supply pipe positioned proximate the inner end of the air-fuel injector pipe;
- (c) a venturi insert fixed within the air-fuel injector pipe and having an orifice positioned outward of the inner open end of the oil supply pipe;
- and
- (d) a combustion air supply including a blower and a recuperator having side by side chambers separated by an impervious common heat conducting wall, the blower being connected to a combustion air inlet of a first of said recuperator chambers, the outer open end of the air-fuel injector pipe being connected to a combustion air outlet of the first recuperator chamber, a second of said recuperator chambers having an exhaust gas inlet connected to the combustion chamber and an exhaust gas outlet, the combustion air supply being configured to flow outgoing combusted gases through the second recuperator chamber and transfer heat through the common heat conducting wall to incoming combustion air flowing through the first recuperator chamber and the air fuel injector pipe.
A vortex burner for applying heat to a heat absorbing load, the vortex burner comprising:
- (a) a cylindrical combustion chamber having opposite ends and surrounded by ceramic thermal insulation forming a cylindrical interior wall;
- (b) a fuel inlet pipe and an air inlet pipe configured for injecting fuel and combustion-supporting air into a first of the opposite ends of the combustion chamber in a helical flow direction along the cylindrical interior wall of the combustion chamber to a second of the opposite ends;
- (c) a gas ignitor torch extending into the combustion chamber at the first of the opposite ends of the combustion chamber and configured to ignite injected fuel;
- (d) a recuperator at the second of the opposite ends of the combustion chamber, the recuperator having side by side chambers separated by an impervious common heat conducting wall, the air inlet pipe being connected to a combustion air outlet of a first of the chambers, a second of the chambers having an exhaust gas inlet connected to the combustion chamber and an exhaust gas outlet, the recuperator being configured to receive a flow of outgoing combusted gases through the second chamber and transfer heat through the common heat conducting wall to incoming combustion air flowing through the first chamber and the air inlet pipe;
- and
- (e) a blower having an input and having an output connected to the combustion air inlet of the first of said chambers.
A burner having a tubular combustion chamber surrounded by and comprising:
- (a) a riser liner;
- (b) an inner core forming an inner wall of the combustion chamber concentric with the riser liner, the inner core being cast onto an inner surface of the riser liner from a particulate ceramic powder and having a thermal conductivity of less than 10 BTU in/(h·ft2·° F.);
- (c) an outer ceramic insulation layer comprising alumina silica blanket insulation wrapped concentrically around the riser liner;
- and
- (d) a steel barrel surrounding the alumina silica blanket insulation.
Dependencies are inferred from the claim text.