Structural unit comprising heat exchanger and liquid separator

Abstract

Described is a structural unit composed of a heat exchanger and a liquid separator, in particular for separating droplets from evaporated refrigerant, in particular for refrigeration and air conditioning systems, which structural unit is of compact design. According to the invention, in a pressure vessel ( 1 ) in which heat transfer plates ( 2 ) are arranged in a lower region and in which an upper region as a space for the separation of droplets from evaporated refrigerant is formed above the heat transfer plates ( 2 ) as a result of the arrangement of the heat transfer plates ( 2 ) in the lower region, the heat transfer plates are arranged substantially parallel to the longitudinal axis of the pressure vessel.

1 . A structural unit comprising a heat exchanger and a liquid separator for separating droplets from evaporated refrigerant, in particular for refrigeration and air conditioning systems,
 having a pressure vessel ( 1 ) in which heat transfer plates ( 2 ) are disposed in a lower region, and in which an upper region is formed above the heat transfer plates ( 2 ) as a space for separating droplets from evaporated refrigerant due to the arrangement of the heat transfer plates ( 2 ) in the lower region,   characterized in that   the heat transfer plates are disposed substantially parallel to the longitudinal axis of the pressure vessel.   
     
     
         2 . The structural unit comprising a heat exchanger and a liquid separator according to  claim 1 ,
 characterized in that   the pressure vessel ( 1 ) is formed substantially of a tubular base body ( 3 ) and torispherical heads ( 4 ;  5 ) welded thereto on both sides.   
     
     
         3 . The structural unit comprising a heat exchanger and a liquid separator according to  claim 1  or  2 ,
 characterized in that 
 the heat transfer plates ( 2 ) are at least one fully welded plate pack of pairs of profiled heat transfer plates having a rectangular shape and head pieces delimited on both sides in an arc shape, wherein each head piece has a passage opening. 
 
     
     
         4 . The structural unit comprising a heat exchanger and a liquid separator according to  claims 1  to  3 ,
 characterized in that 
 at least one further plate pack, which has more plate pairs than the first plate pack, is disposed above the first plate pack. 
 
     
     
         5 . The structural unit comprising a heat exchanger and a liquid separator according to  claims 1  to  4 ,
 characterized in that, 
 in the axial extension of the tubular base body ( 3 ), at least one further plate pack is disposed in the axial direction after the first plate pack. 
 
     
     
         6 . The structural unit comprising a heat exchanger and a liquid separator according to  claims 1  to  5 ,
 characterized in that 
 a plurality of plate packs is disposed in a cascaded arrangement. 
 
     
     
         7 . The structural unit comprising a heat exchanger and a liquid separator according to  claims 1  to  6 ,
 characterized in that 
 the pressure vessel ( 1 ) is resistant to pressure greater than the possible operating pressure in the plate chamber of the heat exchanger plates. 
 
     
     
         8 . The structural unit comprising a heat exchanger and a liquid separator according to  claims 1  to  7 ,
 characterized in that 
 the structural unit, together with a compressor, is mounted via pipes in a frame as a complete system by means of a first connecting pipe ( 9 ) and a second connecting pipe ( 10 ) on the pressure vessel ( 1 ).