FUEL COMBUSTION SYSTEM

摘要

A combustion system comprises a discharge nozzle with concentric air and fuel orifices. A fuel conduit is coupled to each fuel orifice while an air conduit is coupled to each air orifice. The fuel and air only mixing with one another upon discharge. A supplemental air source supplies supplement air for combustion. An air deflector disk supports the discharge nozzle and a cylindrical blast tube surrounds the air deflector sleeve and the air deflector disk while an outlet end of the cylindrical blast tube supports a flame retention head. The deflector disk permits some combustion air to flow into the combustion chamber while redirecting a remaining portion of the supplement air. The flame retention head permits some of the supplement air to discharge into a burner box while redirecting the remaining supplement air radially inward through openings in the air deflector sleeve to assist with combustion of the fuel mixture.

主权项

1. A fuel combustion system for burning a fuel mixture, the fuel combustion system comprising:
at least one discharge nozzle being supported by a fuel discharge body; and each at least one discharge nozzle having a liquid fuel orifice and a concentric air orifice surrounding the liquid fuel orifice; a liquid fuel supply conduit being coupled to each liquid fuel orifice for supplying liquid fuel thereto from a fuel supply; an air supply conduit being coupled to each air orifice for supplying pressurized air thereto from a pressurized air source; the liquid fuel and the pressurized air only mixing with one another, to form the fuel mixture, upon being discharged from the concentric liquid fuel and air orifices; an inlet section of an air deflector sleeve being located for receiving the fuel mixture discharged by the at least one discharge nozzle; a blast tube surrounding the air deflector sleeve and an outlet end of the cylindrical blast tube supporting a flame retention head; a supplemental air fan for supplying supplement air into an inlet end of the blast tube for supplying supplement air to assist with combustion of the fuel mixture; an air deflector disk supporting the at least one discharge nozzle within the blast tube and directing some of the supplement air into the inlet section of the air deflector sleeve and redirecting a remaining portion of the supplement air toward the flame retention head, and the air deflector disk being located between the fuel discharge body and the inlet section of the air deflector sleeve; and the flame retention head discharging some of the supplemental air axially through plurality of plurality of apertures formed therein and redirecting a remaining portion of the supplement air radially inward through a plurality of openings formed in an outlet section of the air deflector sleeve to assist with combustion of the fuel mixture.