Heat exchanger

Abstract

A heat exchanger includes at least two tube sections wound helically to form a spiral and are arranged in an interlacing manner inside one another for guiding a heat transfer fluid. The heat exchanger includes a first tube section helically wound to form a first spiral. The first tube section is for guiding a first heat transfer fluid and a second tube section is helically wound to form a second spiral, the first spiral and the second spiral being arranged in an interlacing manner inside one another and being connected to one another.

1 - 11 . (canceled) 
   
   
       12 . A heat exchanger comprising:
 a first tube section helically wound to form a first spiral, the first tube section for guiding a first heat transfer fluid; and   a second tube section helically wound to form a second spiral, the first spiral and the second spiral being arranged in an interlacing manner inside one another and being connected to one another.   
   
   
       13 . The heat exchanger as claimed in  claim 12 , wherein the first tube section and the second tube section are connected in one piece. 
   
   
       14 . The heat exchanger as claimed in  claim 13 , wherein the first tube section has a handedness in a one direction and the second tube section has a handedness opposite to the handedness of the first tube section. 
   
   
       15 . The heat exchanger as claimed in  claim 13 , wherein the first spiral has an end, the second spiral has an end that coincides with the end of the first spiral, and the first tube section and the second tube section are connected to one another at the coinciding ends of the first spiral and the second spiral. 
   
   
       16 . The heat exchanger as claimed in  claim 13 , wherein the first tube section and the second tube section are connected via an extension of one from the group of the first tube section and the second tube section that extends between opposite ends of the first spiral and the second spiral. 
   
   
       17 . The heat exchanger as claimed in  claim 12  and further comprising at least one third spiral interlaced with the first spiral and the second spiral. 
   
   
       18 . The heat exchanger as claimed in  claim 12 , wherein the first spiral and the second spiral are interlaced concentrically. 
   
   
       19 . The heat exchanger as claimed in  claim 12 , wherein the first spiral and the second spiral each has a constant cross-section in the longitudinal direction. 
   
   
       20 . The heat exchanger as claimed in  claim 12 , wherein the first spiral and the second spiral each has a tapering cross-section in the longitudinal direction. 
   
   
       21 . The heat exchanger as claimed in  claim 12  and further comprising one from the group of an evaporation tray and a dryer arranged inside the innermost spiral of the first spiral and the second spiral. 
   
   
       22 . A method for the production of a heat exchanger, the method comprising:
 winding a tube around a first winding core to thereby form a first spiral;   placing a slotted second winding core around the first spiral; and   from the tube, winding a second spiral on the second winding core in a manner resulting in the second spiral surrounding the first spiral.