Rotary disc-type heat exchanger

Abstract

A disc drier is described where internally, in each disc, a number of corresponding profiles are arranged, which, when the two disc halves are put together to one disc, establish an engagement with each other to stiffen the disc.

1 . Heat exchanger device for heating, cooling or drying of a material, with the device comprising a stationary drum with an internally arranged hollow rotor containing a heating or cooling medium, where a number of disc-formed bodies are fitted to the rotor in order to comprise medium in the rotor, where the disc formed bodies are formed in that two plate-formed disc halves ( 12 ,  12 ′) are stuck together, characterised in that a set of corresponding profiles ( 14 ,  14 ′ respectively) are internally fitted onto each of the corresponding disc halves ( 12 ,  12 ′ respectively) so that the corresponding profiles ( 14 ,  14 ′) establish an engagement with each other for stiffening of the disc-formed bodies as the disc halves ( 12 ,  12 ′) when being put together are mutually moved in relation to each other.  
     
     
         2 . Device in accordance with  claim 1 , characterised in that the mentioned profiles ( 14 ,  14 ′) have largely an L-shaped form.  
     
     
         3 . Device in accordance with one of the claims  1 - 2 , characterised in that the end edges ( 14   b ,  14   b ′) of the profiles are adapted to correspond to the sections ( 14   c ,  14   c ′) of the profiles.  
     
     
         4 . Device in accordance with one of the claims  1 - 3 , characterised in that the disc comprises a dividing plate to collect and empty the condensate that is formed in the disc.  
     
     
         5 . Device in accordance with one of the claims  1 - 4 , characterised in that the discs comprise pipes for steam entry, and pipes to discharge condensate.  
     
     
         6 . Device in accordance with one of the claims  1 - 5 , characterised in that the disc halves ( 12 ,  12 ′), in addition to the mentioned profiles ( 14 ,  14 ′), are kept together by conventional welding.  
     
     
         7 . Device in accordance with one of the claims  1 - 6 , characterised in that in addition, conventional staybolts  20  and ring armatures are used to take up the tension in the disc construction.  
     
     
         8 . Device in accordance with one of the claims  1 - 7 , characterised in that the profiles are arranged radially inside the disc.  
     
     
         9 . Device in accordance with one of the claims  1 - 7 , characterised in that to establish engagement between the two disc halves the profiles are arranged in a axial direction.  
     
     
         10 . Device in accordance with  claim 9 , characterised in that the profiles are given a form so that a threaded anchorage point is established between the two disc halves.  
     
     
         11 . Device in accordance with claim characterised in that the threaded anchorage point is broken.