Bunsen burner using lean-rich combustion type

Abstract

A Bunsen burner which reduces pollutant materials generated during combustion by adopting a lean combustion, enhancing combustion stability. The Bunsen burner includes burner bodies, each including: a venturi plate having a venturi hole through which a gas mixture is introduced, wherein air supplied from a fan is mixed with fuel jetted from a nozzle unit, a guide plate for guiding the gas mixture upward, an inclined portion having first flame holes for jetting the gas mixture at an oblique angle with respect to the vertical direction, a side portion that extends downward from a lower side of the inclined portion and includes through-holes through which some of the gas mixture passes, and a connection plate having opposed ends connected to the side portions of the burner bodies, respectively, and having second flame holes in which the gas mixture passing through the through-holes and secondary air, introduced by the fan and supplied along outer surfaces of the burner bodies, are mixed so that lean combustion occurs.

1 . A Bunsen burner comprising:
 a plurality of burner bodies, each burner body including:
 a venturi plate having a venturi hole located in the venturi plate and through which a gas mixture is introduced, wherein air, supplied from a fan, as primary air, is mixed with fuel jetted from a nozzle unit into the burner body, 
 a guide plate for guiding the gas mixture upward, 
 an inclined portion having a plurality of first flame holes for jetting the gas mixture at a predetermined angle oblique to the vertical direction, and 
 a side portion that extends downward from a lower side of the inclined portion and includes a plurality of through-holes and through which some of the gas mixture passes; and 
   a connection plate having opposed ends connected to respective side portions of each of the burner bodies, and having a plurality of second flame holes, wherein the gas mixture passing through the through-holes and secondary air, introduced by the fan and supplied along outer surfaces of the burner bodies, are mixed so that lean combustion occurs.   
     
     
         2 . The Bunsen burner according to  claim 1 , wherein the connection plate is coupled to an uppermost end of the side portions of the burner bodies. 
     
     
         3 . The Bunsen burner according to  claim 1 , wherein each of the burner bodies includes:
 a burner upper plate including
 a first horizontal portion which is located at an upper end of the burner upper plate, is planar, and has a predetermined width, 
 a first inclined portion which extends from the first horizontal portion and inclines downward and includes the first flame holes, and 
 a first side portion which extends from the first inclined portion and includes the through-holes; and 
   a burner lower plate located symmetrically with respect to the burner upper plate, in the vertical direction.