COMBUSTION METHOD BY RADIANT TUBE BURNER AND BURNER THEREOF

摘要

The radiant tube burner assembly (10) comprises a radiant tupe (12) having a burner leg (14) and an exhaust leg (16). A plenum for mixing combustion air and products of combustion from the exhaust leg is positioned to direct the resultant mixture into the burner leg. A jet pump (22) for directing high velocity combustion air through a nozzle (26) and along a central longitudinal axis of the plenum (36) aspirates the products of combustion from the exhaust leg (16) through a duct (42) in registry with the plenum (36) and the exhaust leg (16). A restructed orifice (48) associated with the duct (42) is dimensioned and sized in relation to the jet pump nozzle (26) to control the amount of products of combustion aspirated to the plenum (36). A conventional fuel source including a fuel pipe and conventional exhaust means also form a part of the assembly.