Plate heat exchanger

Abstract

In a plate heat exchanger having a heat exchanger block ( 1 ) with a number of heat exchange passages and a header ( 2 ) attached to the heat exchanger block, the header providing a flow connection between a portion of the heat exchange passages and a fluid connection ( 3 ), the header is defined by a cylinder jacket segment-shaped wall ( 7 ) and by a flat surface ( 12 ), which runs parallel to the axis of the cylinder ( 13 ) on a side ( 5 ) of the heat exchanger block. The length of the header extends over at least one portion of a side ( 5 ) of the heat exchanger block. At least one wall ( 7 ) of the header is connected to the side ( 5 ) of the heat exchanger block. The header is designed so that the axis ( 13 ) of the cylinder runs inside the header spaced at a distance ( 11 ) from the flat surface ( 12 ).

1 . A plate heat exchanger comprising: 
 a heat exchanger block having a plurality of heat exchange passages; and    a header attached to the heat exchanger block providing a flow connection between a portion of the heat exchange passages and a fluid connection;    wherein the length of the header extends over at least one portion of a side of the heat exchanger block, and the header is defined by a cylinder jacket segment-shaped wall ( 7 ), and by a flat surface ( 12 ) which runs parallel to the axis ( 13 ) of the cylinder on the side of the heat exchanger block; and    wherein said axis ( 13 ) of said cylinder jacket ( 7 ) is spaced at a distance from said flat surface ( 12 ).    
     
     
         2 . A plate heat exchanger according to  claim 1 , wherein said axis ( 13 ) of said cylinder jacket ( 7 ) is parallel to said flat surface ( 12 ).  
     
     
         3 . A plate heat exchanger according to  claim 1 , wherein the exterior angle ( 8 ) between said cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is 87° or less.  
     
     
         4 . A plate heat exchanger according to  claim 3 , wherein the exterior angle ( 8 ) between said cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is 81° or less.  
     
     
         5 . A plate heat exchanger according to  claim 4 , wherein the exterior angle ( 8 ) between said cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is 75° or less.  
     
     
         6 . A plate heat exchanger according to  claim 1 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 40°.  
     
     
         7 . A plate heat exchanger according to  claim 6 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 55°.  
     
     
         8 . A plate heat exchanger according to  claim 7 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 65°.  
     
     
         9 . A plate heat exchanger according to  claim 3 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 40°.  
     
     
         10 . A plate heat exchanger according to  claim 3 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 55°.  
     
     
         11 . A plate heat exchanger according to  claim 3 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 65°.  
     
     
         12 . A plate heat exchanger according to  claim 4 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 40°.  
     
     
         13 . A plate heat exchanger according to  claim 4 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 55°.  
     
     
         14 . A plate heat exchanger according to  claim 4 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 65°.  
     
     
         15 . A plate heat exchanger according to  claim 5 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 40°.  
     
     
         16 . A plate heat exchanger according to  claim 5 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 55°.  
     
     
         17 . A plate heat exchanger according to  claim 5 , wherein the exterior angle ( 8 ) between the cylinder jacket segment-shaped wall ( 7 ) of the header and the side of the heat exchanger block is at least 65°.  
     
     
         18 . A plate heat exchanger according to  claim 1 , wherein the cylinder jacket segment-shaped wall ( 7 ) of said header ( 2 ) and/or the heat exchanger block are produced from aluminum.  
     
     
         19 . A plate heat exchanger according to  claim 1 , wherein the cylinder jacket segment-shaped wall ( 7 ) of the header ( 2 ) and the heat exchanger block are connected to one another by friction.