Heat exchanger of the plate type

Abstract

A heat exchanger of a structurally self-supporting plate type and provided with an internal flow passage constrained between a first and a second plate and extending between an inlet and an outlet; The flow passage is subdivided in multiple generally parallelly directed longitudinally extending channels with the longitudinally extending channels having continuous joints formed by the two plates; The longitudinally extending channels have an arch-shaped cross-section and the arch-shape of the plates of the channels is in the same face direction orthogonal to the plates; The parallel running longitudinally extending channels include several laterally directed arches relative to their main axis in their longitudinal extension.

1 . A heat exchanger of a structurally self-supporting plate type and provided with an internal flow passage constrained between a first and a second plate and extending between an inlet and an outlet,
 wherein said flow passage is subdivided in multiple generally parallel directed longitudinally extending channels,   said longitudinally extending channels having continuous joints formed by said two plates,   said longitudinally extending channels having an arch-shaped cross-section,   wherein said arch-shape of said plates of said channels is in the same face direction orthogonal to said plates,   wherein said parallel running longitudinally extending channels comprise several laterally directed arches relative to their main axis in their longitudinal extension.   
     
     
         2 . The heat exchanger according to  claim 1 , wherein the second plate is thermally insulated. 
     
     
         3 . The heat exchanger according to  claim 2 , wherein said second plate is formed in a thermally insulating material. 
     
     
         4 . The heat exchanger according to  claim 2 , wherein said second plate is formed in a thermally conductive material. 
     
     
         5 . The heat exchanger according to  claim 1 , wherein said continuous joints comprise many laterally directed kinks relative to their main axis measured in their longitudinal direction. 
     
     
         6 . The heat exchanger according to  claim 1 , wherein said longitudinally directed channels have a corrugated surface generally across said longitudinal direction. 
     
     
         7 . The heat exchanger according to  claim 1 , wherein one of said plates has a surrounding rim formed as a self-supporting structural frame. 
     
     
         8 . The heat exchanger according to  claim 1 , wherein at least said first of said plates is covered by a transparent cover. 
     
     
         9 . The heat exchanger according to  claim 8 , wherein said transparent cover is glass, preferably toughened glass with low iron content. 
     
     
         10 . The heat exchanger according to  claim 1 , wherein said transparent cover is made in a polymer material such as polycarbonate, polyethylene teraftalate, acrylic, or similar. 
     
     
         11 . The heat exchanger according to claims  claim 1 , wherein said polymer material in said first and second plate is ABS, polypropylene, PET, or epoxy. 
     
     
         12 . The heat exchanger according to any of the preceding claims  claim 1 , wherein said polymer material in at least said first plate is carbon fiber or carbon nanotube-reinforced. 
     
     
         13 . The heat exchanger according to  claim 12 , wherein said carbon fibre reinforcement in said polymer material comprises carbonized bamboo particles. 
     
     
         14 . The heat exchanger according to  claim 1 , wherein a second passage for a second fluid from a second inlet and a second outlet is formed by arranging a third plate below the second plate, wherein the second passage is subdivided into a number of generally parallelly directed longitudinal second channels extending along the first longitudinal channels, separated by continuous joints between the second and the third plate and extends along the continuous joints. 
     
     
         15 . The heat exchanger according to  claim 14 , wherein it is arranged counter flow, i.e. the first inlet is by the second outlet, and the first outlet is by said second inlet. 
     
     
         16 . The heat exchanger according to  claim 14 , wherein said second channels have a arc-shaped cross-section corresponding to said cross section of the first channels, in that said third plate is curved to the same side as said second and the first plate. 
     
     
         17 . The heat exchanger according to  claim 1 , wherein the exposed plate is formed of a heat conductive material. 
     
     
         18 . The heat exchanger according to  claim 1 , further provided with low, inward protruding generally transverse notches in part of the channels' cross-sections. 
     
     
         19 . The heat exchanger according to any of the preceding claims  claim 1 , wherein between said inlet and said channels is an inlet manifold and between said channels and said outlet is an outlet manifold.