Condenser

Abstract

The invention relates to a condenser in stacked-plate design, wherein a heat exchanger block is formed by a plurality of plate elements, which form channels adjacent to each other between the plate elements when the plate elements are stacked on top of each other, wherein a first number of the channels is associated with a first flow channel and a second number of the channels is associated with a second flow channel, and a refrigerant can flow through the first flow channel and a coolant can flow through the second flow channel, wherein the first flow channel has a first region for desuperheating and condensing the vaporous refrigerant and a second region for subcooling the condensed refrigerant.

1 . A condenser in stacked-plate construction, wherein a heat exchanger block is formed of a plurality of plate elements, which, stacked one on top of another, form mutually adjacent channels between the plate elements, wherein a first number of the channels is assigned to a first flow channel and a second number of the channels is assigned to a second flow channel, and a refrigerant is flowable through the first flow channel and a coolant is flowable through the second flow channel, wherein the first flow channel has a first region for the desuperheating and condensation of the vaporous refrigerant and a second region for the supercooling of the condensed refrigerant, wherein at least a portion of the first flow channel is in thermal contact with at least a portion of the second flow channel, and the first region has a first fluid supply line and a first fluid discharge line and the second region has a second fluid supply line and a second fluid discharge line, wherein the condenser has a receiver for storing the refrigerant, and a refrigerant crossover from the first region into the second region leads through the receiver , wherein the receiver is in fluid communication with the first region via the first fluid discharge line, which also forms the fluid inlet of the receiver, and is in fluid communication with the second region via the second fluid supply line, which also forms the fluid outlet of the receiver, wherein the receiver is disposed on an outer surface of the condenser. 
     
     
         2 . The condenser as claimed in  claim 1 , wherein the coolant in the second flow channel and the refrigerant in the first flow channel are flowable in cocurrent flow to each other and/or in countercurrent flow to each other. 
     
     
         3 . The condenser as claimed in  claim 1 , wherein the first fluid discharge line and/or the second fluid supply line are/is disposed inside and/or outside the heat exchanger block. 
     
     
         4 . The condenser as claimed in  claim 1 , wherein the first fluid discharge line and/or the second fluid supply line are/is formed by a pipeline. 
     
     
         5 . The condenser as claimed in  claim 1 , wherein the first fluid supply line and the second fluid supply line viewed along the principal direction of flow through a channel between the plate elements, are disposed at the same end region of the condenser, wherein the first fluid discharge line and the second fluid discharge line are disposed at the opposite end region of the condenser. 
     
     
         6 . The condenser as claimed in  claim 5 , wherein the first fluid supply line and the second fluid supply line are disposed, in the final assembly position of the condenser, at the upper end region of the condenser. 
     
     
         7 . The condenser as claimed in  claim 1 , wherein the internal volume share of the second region of the first flow channel represents maximally about 40%, here preferably about 20%, here preferably between about 5% and about 15% of the internal total volume of the first flow channel. 
     
     
         8 . The condenser as claimed in  claim 1 , wherein the coolant supply line and the coolant discharge line of the second flow channel, viewed along the direction of flow through a channel between the plate elements, are disposed at opposite end regions of the condenser. 
     
     
         9 . The condenser as claimed in  claim 1 , wherein the first region and/or the second region of the first flow channel inside the condenser are/is diverted one or more times in their/its principal direction of flow. 
     
     
         10 . The condenser as claimed in  claim 1 , wherein the second flow channel inside the condenser is diverted at least once in its principal direction of flow through around 180°. 
     
     
         11 . The condenser as claimed in  claim 1 , wherein the second flow channel is diverted once in its principal direction of flow through around 180°, whereby a forward flow region and a return flow region are formed, wherein the internal volume of the forward flow region of the second flow channel and the internal volume of the return flow region of the second flow channel are approximately equal in size and/or unequal in size. 
     
     
         12 . The condenser as claimed in  claim 11 , wherein the coolant flows through the second flow channel in such a way that, along the principal direction of flow through the second flow channel, it first enters into thermal contact with the second region of the first flow channel or it first enters into thermal contact with the second region and at least a portion of the first region of the first flow channel and, respectively after the diversion, enters substantially into thermal contact with the first region of the first flow channel. 
     
     
         13 . The condenser as claimed in  claim 1 , wherein a thermal separation is present between the first region for the desuperheating and condensation of the vaporous refrigerant and the second region for the supercooling of the condensed refrigerant. 
     
     
         14 . The condenser as claimed in  claim 13 , wherein the thermal separation is configured as a thermally insulating plate, as an air gap, as an air-conducting channel, as a part of the second flow channel having a multiple coolant path and/or as a part of the second flow channel having a larger flow cross-sectional area than the rest of the second flow channel.