Spiral heat exchanger

Abstract

A spiral heat exchanger mounted in a housing has at least one group of at least two media-conducting spiral elements which are nested into one another, wherein the spiral elements are composed of a plurality of extruded profiles which are cut to length and are arranged next to one another. Spaced-apart spacer ribs are mounted on the outer flat sides of the extruded profiles. Transverse channels connected in a media-conducting manner to the spiral channels are provided at the radially inner and radially outer ends of the extruded profiles. The transverse channels can be coupled to lines which supply and/or discharge media.

We claim:  
     
         1 . A spiral heat exchanger comprising a housing, and at least one group of at least two media-conducting spiral elements nested into one another and mounted in the housing, wherein the spiral elements are comprised of extruded profiles which are cut to length and form spiral channels extending next to one another, the extruded profiles having outer flat sides and spaced-apart it spacer ribs extending next to each other on the outer flat sides, further comprising transverse channels connected in a media-conducting manner to the spiral channels at radially inner and outer ends of the extruded profiles, wherein the transverse channels are adapted to be coupled to lines which supply and/or discharge media.  
     
     
         2 . The spiral heat exchanger according to  claim 1 , wherein the two spiral elements and the spacer ribs thereof are offset relative to each other in a transverse direction of the heat exchanger.  
     
     
         3 . The spiral heat exchanger according to  claim 1 , wherein the two spiral elements are displaceable relative to each other in a transverse direction of the heat exchanger.  
     
     
         4 . The spiral heat exchanger according to  claim 1 , comprising at least two groups of at least two media-conducting spiral elements nested into one another, wherein the two groups are arranged in the housing located next to one another, and wherein the two groups are connected in a media-conducting manner through one of the radially inner transverse channels and the radially outer transverse channels.