High-Efficiency Self-Regenerative Burner

Abstract

A self-regenerative burner has a burner tile coupled to the head portion of the burner. The burner tile includes a fuel injection hole formed through the center of a body; intake/exhaust holes formed around the fuel injection hole; a mixing-preventing separation wall formed with respect to the fuel injection hole, the separation wall bisecting the intake/exhaust holes to prevent air movement between the intake/exhaust holes; and first and second combustion sections formed at both sides with respect to the separation wall, the first and second combustion sections acting to alternately perform main combustion and exhaust, respectively. The separation wall allows intake/exhaust flows in the two combustion sections to be separated from each other. Accordingly, a flame in the burner is stabilized and the combustion and exhaust performances of the burner are improved, leading to an improvement in the energy efficiency of the burner.

1 . A high-efficiency self-regenerative burner, which mixes air and fuel at a suitable ratio, burns the mixture and accumulates the thermal energy of burned high-temperature exhaust gas to use the thermal energy for the preheating of air supplied for combustion, the self-regenerative burner comprising a burner tile, which is coupled to the head portion of the burner and has two combustion sections in which the flow passages of combustion air and exhaust gas are alternately operated, the burner tile comprising:
 a fuel injection hole formed through a center of a body;   a plurality of intake/exhaust holes formed around the fuel injection hole;   a mixing-preventing separation wall formed with respect to the fuel injection hole, the separation wall bisecting the intake/exhaust holes so as to prevent air movement between the bisected intake/exhaust holes; and   a first combustion section and a second combustion section formed at both sides with respect to the separation wall, the first and second combustion sections acting to alternately perform main combustion and exhaust, respectively.   
   
   
       2 . The high-efficiency self-regenerative burner of  claim 1 , wherein the body of the burner tile is manufactured of a ceramic material having excellent thermal resistance. 
   
   
       3 . The high-efficiency self-regenerative burner of  claim 1 , wherein the first combustion section and the second combustion section share the fuel injection hole, each of the first and second combustion sections comprises 4-8 intake/exhaust holes, the intake/exhaust holes comprising axial through-holes and vertical through-holes, and the vertical through-holes and the axial through-holes communicate with each other. 
   
   
       4 . The high-efficiency self-regenerative burner of  claim 1 , wherein the mixing-preventing separation wall comprises a circular region protruded around the fuel injection hole, and a straight region protruded vertically and horizontally around the fuel injection hole.