Stacked heat exchanger

Abstract

In each space 41, a plurality of outer fins 43 are stacked to be arranged, and partition boards 45 are individually arranged between the outer fins 43. At least on edges of each partition board 45 on sides of tank formation portions 37, bent portions 47 and 49 bent in the stacking direction of the tube sheets 29 are formed. Moreover, the position in the stacking direction of an edge 61 a of a partition board 61 on a side of the tank formation portions 37, 37 A, or 37 B is different from the position in the stacking direction of a joint portion of the tank formation potions 37, 37 A, or 37 B, respectively.

What is claimed is:  
     
         1 . A stacked heat exchanger, comprising: 
 a plurality of plate-shaped tube sheets stacked, each including a fluid passage formed inside;    a plurality of tank formation portions, which are mutually joined with each of said plurality of tube sheets and formed to be projected in a stacking direction of said plurality of tube sheets;    a plurality of corrugated outer fins stacked to be arranged in each of spaces formed between said plurality of tube sheets; and    a partition board arranged between said plurality of outer fins, wherein 
 a bent portion is formed at least on an edge of said partition board on a side of said plurality of tank formation portions, and the bent portion is bent in a stacking direction of said plurality of tube sheets.  
   
     
     
         2 . The stacked heat exchanger according to  claim 1 , wherein 
 said bent portion includes a first bent portion and a second bent portion formed on each of both edges of the partition board, the first bent portion and the second bent portion being bent in directions opposite to each other.    
     
     
         3 . A stacked heat exchanger, comprising: 
 a plurality of plate-shaped tube sheets stacked, each including a fluid passage formed inside;    a plurality of tank formation portions, which are mutually joined with each of said plurality of tube sheets and formed to be projected in a stacking direction of said plurality of tube sheets;    a plurality of corrugated outer fins stacked to be arranged in each of spaces formed between said plurality of tube sheets; and    a partition board arranged between said plurality of outer fins, wherein 
 a position of an edge of said partition board on a side of said plurality of tank formation portions is set to be different from a position in the stacking direction of a joint portion of said rank formation portions.  
   
     
     
         4 . The stacked heat exchanger according to  claim 3 , wherein 
 projected heights of the tank formation portions joined to each other are different from each other.    
     
     
         5 . The stacked heat exchanger according to  claim 3 , wherein 
 fin heights of said plurality of outer fins stacked in each of the spaces are different from each other.    
     
     
         6 . The stacked heat exchanger according to  claim 3 , wherein 
 the number of said plurality of outer fins that are stacked in each of the spaces is set to an odd number.    
     
     
         7 . The stacked heat exchanger according to  claim 1 , wherein 
 said plurality of outer fins and said partition board carry a catalyst.