Flame tube for a burner for hot gas generation

Abstract

A flame tube for a burner for hot gas generation has a hollow body which forms an at least partially enclosed combustion chamber. The hollow body has a first end which is designed for connection to a flame generation unit. The hollow body also has a lateral surface, on which at least one branch tube is arranged. The branch tube, on its outer side, is connected to an intermediate piece and the intermediate piece is secured to the lateral surface.

1 . A flame tube for a burner comprising a flame generation unit, the flame tube having 
 a hollow body forming an at least partially enclosed combustion chamber, and    at least one branch tube connected to the hollow body,    the hollow body having a first end designed for being connected to the flame generation unit, and a lateral surface on which the at least one branch tube is arranged,    wherein the branch tube, on its outer side, is connected to an intermediate piece, and    wherein the intermediate piece is secured to the lateral surface.    
   
   
       2 . The flame tube of  claim 1 , wherein the intermediate piece is welded to the lateral surface.  
   
   
       3 . The flame tube of  claim 1 , wherein the branch tube and the intermediate piece are of two-part design, with the branch tube and the intermediate piece being welded to one another.  
   
   
       4 . The flame tube of  claim 1 , wherein the branch tube is secured to the lateral surface only by way of the intermediate piece.  
   
   
       5 . The flame tube of  claim 1 , wherein the lateral surface has an outer side, and the branch tube is fitted flush onto the outer side.  
   
   
       6 . The flame tube of  claim 1 , wherein the lateral surface has an opening with a first internal diameter, the opening being located below the branch tube, and wherein the branch tube has a second internal diameter, the second internal diameter being greater than the first internal diameter.  
   
   
       7 . The flame tube of  claim 1 , wherein the intermediate piece is an angle piece with at least two limbs surrounding the branch tube.  
   
   
       8 . The flame tube of  claim 7 , wherein the intermediate piece is an angle piece with three limbs which surround the branch tube.  
   
   
       9 . The flame tube of  claim 1 , wherein the intermediate piece is a bracket having two limbs, with one limb being secured to the branch tube and a second limb being secured to the lateral surface.  
   
   
       10 . The flame tube of  claim 1 , wherein the intermediate piece is a ring surrounding the branch tube.  
   
   
       11 . The flame tube of  claim 1 , wherein the lateral surface has a first half and a second half as seen in a circumferential direction, and wherein a plurality of branch tubes are secured only to the first half.  
   
   
       12 . The flame tube of  claim 11 , wherein the second half is completely closed.  
   
   
       13 . The flame tube of  claim 11 , comprising four branch tubes arranged on the first half in such a way that when the first half is seen in plan view the branch tubes approximately define a rectangle.  
   
   
       14 . The flame tube of  claim 13 , wherein the four branch tubes include two first branch tubes, which are arranged closer to the first end, and two second branch tubes, which are arranged further away from the first end, the two first branch tubes being inclined towards the first end, while the two second branch tubes are inclined away from the first end.  
   
   
       15 . The flame tube of  claim 1 , wherein the at least one branch tube forms a hot gas outlet.  
   
   
       16 . The flame tube of  claim 1 , wherein the hollow body has a second end which is substantially closed.  
   
   
       17 . The flame tube of  claim 1 , further comprising a metal radiation protection sheet suspended from the hollow body with a clearance between therebetween.  
   
   
       18 . The flame tube of  claim 17 , wherein the metal radiation protection sheet is angled around the hollow body.  
   
   
       19 . A burner for generating hot gases, the burner comprising a flame tube and a flame generation unit connected to the flame tube, and the flame tube having 
 a hollow body forming an at least partially enclosed combustion chamber, and    at least one branch tube connected to the hollow body,    the hollow body having a first end connected to the flame generation unit, and a lateral surface on which the at least one branch tube is arranged,    wherein the branch tube, on its outer side, is connected to an intermediate piece, and    wherein the intermediate piece is secured to the lateral surface.    
   
   
       20 . A method for producing a flame tube for a burner having a flame generation unit, the method comprising: 
 providing a hollow body having a lateral surface for forming an at least partially enclosed combustion chamber, the hollow body having a first end designed for connection to the flame generation unit, and    arranging at least one branch tube on the lateral surface,    wherein the arranging includes connecting the branch tube, on its outer side, to an intermediate piece, and securing the intermediate piece to the lateral surface.