Heat Exchange Insert For A Heat-Exchange Device

Abstract

The invention relates to a heat transfer fin ( 10 ) for a heat exchanger ( 2 ) made from a metal strip ( 20 ). The fin ( 10 ) comprises at least one first area having a first thickness (Th 1 ) and at least a second area with a second thickness (Th 2 ). The invention also relates to a heat exchanging system ( 2 ) with at least one such heat transfer fin ( 10 ).

1 . An insert ( 10 ) for a heat-exchange device ( 2 ) made from a metal strip ( 20 ), characterized in that the insert ( 10 ) comprises at least a first zone having a first thickness (Th 1 ) and at least a second zone having a second thickness (Th 2 ). 
   
   
       2 . An insert ( 10 ) according to  claim 1 , characterized in that the second thickness (Th 2 ) is less than or equal to two times the first thickness (Th 1 ). 
   
   
       3 . An insert ( 10 ) according to  claim 1 , characterized in that the second thickness (Th 2 ) is greater than or equal to one and a half times the first thickness (Th 1 ). 
   
   
       4 . An insert ( 10 ) according to  claim 1 , characterized in that the second zone defines a localized extra thickness ( 30 ) obtained by folding the metal strip ( 20 ) over a first length (A). 
   
   
       5 . An insert ( 10 ) according to  claim 4 , characterized in that the localized extra thickness ( 30 ) of the metal strip ( 20 ) is arranged at the ends of the insert ( 10 ). 
   
   
       6 . An insert ( 10 ) according to  claim 4 , characterized in that the localized extra thickness ( 30 ) is thinned. 
   
   
       7 . An insert ( 10 ) according to  claim 1 , characterized in that the first zone is obtained by locally thinning the metal strip ( 20 ). 
   
   
       8 . An insert ( 10 ) according to  claim 7 , characterized in that the local thinning is achieved by machining. 
   
   
       9 . An insert ( 10 ) according to  claim 1 , characterized in that the localized extra thickness ( 30 ) of the insert ( 10 ) defines at least one transverse excrescence with a height (h 2 ). 
   
   
       10 . An insert ( 10 ) according to  claim 9 , characterized in that the height (h 2 ) of the localized extra thickness ( 30 ) is equal to the difference between the second thickness (Th 2 ) and the first thickness (Th 1 ). 
   
   
       11 . A heat-exchange device ( 2 ) comprising at least one insert ( 10 ) according to  claim 1 . 
   
   
       12 . A heat-exchange device ( 2 ) according to  claim 11 , characterized in that the insert ( 10 ) comprises two localized extra thicknesses ( 30 ) arranged on one and the same side of the insert ( 10 ). 
   
   
       13 . A heat-exchange device ( 2 ) according to  claim 11 , characterized in that the insert comprises two localized extra thicknesses ( 30 ) arranged on two opposite sides of the insert ( 10 ). 
   
   
       14 . A heat-exchange device ( 2 ) according to  claim 12 , characterized in that the exchanger comprises at least one heat-exchange tube ( 8 ) arranged between at least two localized extra thicknesses ( 30 ). 
   
   
       15 . A heat-exchange device ( 2 ) according to  claim 14 , characterized in that the heat-exchange tube ( 8 ) comprises at least one localized deformation ( 32 ) capable of interacting with the localized extra thickness ( 30 ) of the insert ( 10 ). 
   
   
       16 . An insert ( 10 ) according to  claim 2 , characterized in that the second thickness (Th 2 ) is greater than or equal to one and a half times the first thickness (Th 1 ). 
   
   
       17 . An insert ( 10 ) according to  claim 2 , characterized in that the second zone defines a localized extra thickness ( 30 ) obtained by folding the metal strip ( 20 ) over a first length (A).