Heat transfer arrangement

Abstract

A heat transfer arrangement for heating a working fluid by means of a flowing hot fluid comprises a fluid channel for carrying the flowing hot fluid, a pipe bundle arranged in the fluid channel for carrying the working fluid, wherein the pipe bundle comprises a number of pipeline segments running parallel to each other in a longitudinal direction and a carrying structure permanently connected to the fluid channel for holding the pipe bundle in the fluid channel. The pipeline segments are each supported on the carrying structure on at least a first non-moving bearing point and on at least a second bearing point separated from the first bearing point in the longitudinal direction and having clearance movement in at least one direction.

1 - 14 . (canceled) 
     
     
         15 . A heat transfer arrangement for heating a working fluid by means of a flowing hot fluid, comprising
 a fluid passage for conducting the flowing hot fluid;   a bundle of tubes ( 11 ) for conducting the working fluid and arranged in the fluid passage, with the bundle of tubes comprising a plurality of piping sections ( 13 ) extending in parallel to one another along a longitudinal direction (L); and   a support structure ( 15 ) fixedly connected to the fluid passage for holding the bundle of tubes ( 11 ) in the fluid passage,   wherein the piping sections ( 13 ) are each supported immovably at the support structure ( 15 ) at at least one first support point ( 17   a ) and are supported at the support structure ( 15 ) at at least one second support point ( 17   b ) spaced apart therefrom in the longitudinal direction (L) with movement clearance in at least one direction.   
     
     
         16 . The heat transfer arrangement in accordance with  claim 15 , wherein
 the movement clearance at the second support point ( 17   b ) is in the longitudinal direction (L).   
     
     
         17 . The heat transfer arrangement in accordance with  claim 15 , wherein the movement clearance at the second support point ( 17   b ) is exclusively in the longitudinal direction (L). 
     
     
         18 . The heat transfer arrangement in accordance with  claim 15 , wherein one of at least all of the first and all of the second support points ( 17   a,    17   b ) is/are disposed in a transverse plane respectively extending at a right angle to the longitudinal direction (L). 
     
     
         19 . The heat transfer arrangement in accordance with  claim 15 , wherein the support structure ( 15 ) comprises a first support element ( 15   a ) for providing all the first support points ( 17   a ) and a second support element ( 15   b ) separate from the first support element ( 15   a ) for providing all the second support points ( 17   b ). 
     
     
         20 . The heat transfer arrangement in accordance with  claim 19 , wherein the support elements ( 15   a,    15   b ) are configured as areal and respectively extend in a transverse plane extending at a right angle to the longitudinal direction (L). 
     
     
         21 . The heat transfer arrangement in accordance with  claim 15 , wherein the support structure ( 15 ) comprises at least one arrangement of stacked elongate spacers ( 19 ) which are each arranged transversely to the longitudinal direction (L) and in which cut-outs ( 21 ) are provided for leading through piping sections ( 13 ) disposed next to one another. 
     
     
         22 . The heat transfer arrangement in accordance with  claim 21 , wherein the support structure ( 15 ) comprises two arrangements of stacked elongate spacers ( 19 ). 
     
     
         23 . The heat transfer arrangement in accordance with  claim 21 , wherein
 means ( 23 ,  25 ,  27 ,  29 ) are provided for tensioning the stacked   spacers ( 19 ) with respect to one another.   
     
     
         24 . The heat transfer arrangement in accordance with  claim 23 , further comprising two clamps ( 23 ) for tensioning the stacked spacers ( 19 ), the clamps being arranged above and below the bundle of tubes ( 11 ) and including the arrangement of spacers ( 19 ). 
     
     
         25 . The heat transfer arrangement in accordance with  claim 24 , wherein
 the clamps ( 23 ) can be moved toward one another by means of a screw connection ( 25 ,  27 ).   
     
     
         26 . The heat transfer arrangement in accordance with  claim 25 , wherein
 the clamps ( 23 ) can be moved toward one another by means of threaded bars ( 25 ) and nuts ( 27 ).   
     
     
         27 . The heat transfer arrangement in accordance with  claim 25 , wherein
 the clamps ( 23 ) are connected to one another by means of a rigid bridging element ( 29 ) in the tensioned state.   
     
     
         28 . The heat transfer arrangement in accordance with  claim 27 , wherein
 the clamps ( 23 ) are welded to one another.   
     
     
         29 . The heat transfer arrangement in accordance with  claim 21 , wherein
 the spacers ( 19 ) are fixed relative to one another by at least one U-shaped section rail ( 29 ).   
     
     
         30 . A heat transfer arrangement in accordance with  claim 15 , further comprising flow guide walls ( 30 ), the flow guide walls being arranged at both sides of the bundle of tubes ( 11 ) in the fluid passage. 
     
     
         31 . A heat machine, having a heat transfer arrangement comprising
 a fluid passage for conducting the flowing hot fluid;   a bundle of tubes ( 11 ) for conducting the working fluid and arranged in the fluid passage, with the bundle of tubes comprising a plurality of piping sections ( 13 ) extending in parallel to one another along a longitudinal direction (L); and   a support structure ( 15 ) fixedly connected to the fluid passage for holding the bundle of tubes ( 11 ) in the fluid passage,   wherein the piping sections ( 13 ) are each supported immovably at the support structure ( 15 ) at at least one first support point ( 17   a ) and are supported at the support structure ( 15 ) at at least one second support point ( 17   b ) spaced apart therefrom in the longitudinal direction (L) with movement clearance in at least one direction, the heat machine having an expansion machine and having a condenser for cooling the working fluid, wherein the working fluid is conducted in a cycle through the heat transfer arrangement, the expansion machine and the condenser.   
     
     
         32 . A heat machine in accordance with  claim 31 , wherein the working fluid is conducted in a Rankine cycle. 
     
     
         33 . An exhaust gas system for an internal combustion engine into which a heat transfer arrangement is integrated, the heat transfer arrangement comprising
 a fluid passage for conducting the flowing hot fluid;   a bundle of tubes ( 11 ) for conducting the working fluid and arranged in the fluid passage, with the bundle of tubes comprising a plurality of piping sections ( 13 ) extending in parallel to one another along a longitudinal direction (L); and   a support structure ( 15 ) fixedly connected to the fluid passage for holding the bundle of tubes ( 11 ) in the fluid passage,   wherein the piping sections ( 13 ) are each supported immovably at the support structure ( 15 ) at at least one first support point ( 17   a ) and are supported at the support structure ( 15 ) at at least one second support point ( 17   b ) spaced apart therefrom in the longitudinal direction (L) with movement clearance in at least one direction.