Plate type burner

Abstract

A plate type burner includes a burner main body and burning plates mounted on an opened surface of the burner main body. A flange portion enclosing the opened surface is formed on an upper surface of the burner main body. The outer edge of each of the burning plates is placed on the flange portion with a sheet of packing interposed therebetween. The outer edge of each of the burning plates is pressed downward by a pressing plate. The flange portion is shaped in a stepped shape in which the inner part thereof on the side of the opened surface is formed lower than the outer part thereof. Then, the packing is compressed between the stepped part of the flange portion, the stepped part formed in the vertical direction, and the end face of the outer edge of each of the burning plates. Each of the burning plates is pressed to the inner side in the arrangement direction by the reaction force of the compression of the packing.

1 . A plate type burner, comprising:
 a burner main body shaped in a box with an upper surface thereof being formed as an open surface;   a plurality of burning plates mounted side by side in the open surface so that a mixture gas is jetted for combustion from inside the burner main body through a multiplicity of burner ports formed in each of the burning plates;   the burner main body having formed on the upper surface thereof a flange portion in a manner to enclose the open surface, each of the burning plates being placed on the flange portion at an outer edge thereof with an annular packing being interposed therebetween such that, by pressing downward the outer edge of each of the burning plates by a pressing plate to compress the packing, sealing property is secured between the burner main body and each of the burning plates,   wherein the flange portion is formed in a stepped shape with an inner part on a side of the open surface being lower than an outer part,   wherein a vertical stepped part between the inner part and the outer part is formed at a position where a gap narrower than a thickness of the packing in a free state thereof is produced between an end face of the outer edge of each of the burning plates and the stepped part; and   wherein the packing is formed in a size large enough to project from the inner part of the flange portion to the outer part thereof beyond the stepped part.   
     
     
         2 . The plate type burner according to  claim 1 ,
 wherein the open surface and each of the burning plates are formed in a square in plan view, and   wherein corner parts formed by the end faces of the outer edges on outer sides in an arrangement direction of the burning plates situated on both the outer sides in the arrangement direction among the plurality of burning plates and end faces of the outer edges parallel to the arrangement direction are formed in chamfered shapes.   
     
     
         3 . The plate type burner according to  claim 1 , wherein a chamfered portion is formed on an upper edge of the stepped part. 
     
     
         4 . The plate type burner according to  claim 1 ,
 wherein an adhesive is coated on an under surface of the packing, and   wherein the packing is adhered to at least one of the inner part and the outer part of the flange portion.