Method for mounting a heat exchanger device and a heat exchanger device

Abstract

A method for assembling a heat exchanger device of a refrigeration unit may include pushing a heat exchanger coil of the heat exchanger device over a refrigerant collecting vessel of the heat exchanger device. The method may also include fluidically connecting the heat exchanger coil to the at least one cover of the heat exchanger device. The method may further include pushing a tubular casing of the heat exchanger device over the heat exchanger coil, and deforming the tubular casing radially inward.

1 . A method for assembling a heat exchanger device of a refrigeration unit, the heat exchanger device having a housing with at least one cover and a tubular casing, a heat exchanger coil, and a refrigerant collecting vessel, the method comprising:
 pushing the heat exchanger coil over the refrigerant collecting vessel;   fluidically connecting the heat exchanger coil to the at least one cover;   pushing the tubular casing over the heat exchanger coil; and   deforming the tubular casing radially inward.   
     
     
         2 . The method as claimed in  claim 1 , wherein:
 the housing includes two covers;   fluidically connecting the heat exchanger coil to the at least one cover includes fluidically connecting the heat exchanger coil to the two covers; and   the method further includes pushing the tubular casing over at least one of the two covers in addition to the heat exchanger coil.   
     
     
         3 . The method as claimed in  claim 1 , wherein deforming the tubular casing is performed in such a way that the tubular casing bears against the heat exchanger coil. 
     
     
         4 . The method as claimed in  claim 1 , wherein deforming the tubular casing radially inward is performed one of hydraulically, pneumatically, or via a forming tool. 
     
     
         5 . The method as claimed in  claim 1 , wherein deforming the tubular casing radially inward includes deforming the tubular casing to a greater extent in a region of the heat exchanger coil than in a region of the at least one cover. 
     
     
         6 . The method as claimed in  claim 1 , further comprising one of:
 connecting the tubular casing at least sealingly to the at least one cover before deforming the tubular casing; and   connecting the tubular casing at least sealingly to the at least one cover concurrently with deforming the tubular casing.   
     
     
         7 . A heat exchanger device of a refrigeration unit, comprising:
 a housing with at least one cover and a tubular casing, the tubular casing connected to the at least one cover;   a heat exchanger coil; and   a refrigerant collecting vessel;
 wherein the tubular casing is tapered at least on one side in a region between two ends of the tubular casing. 
   
     
     
         8 . The heat exchanger device as claimed in  claim 7 , wherein an internal diameter of the tubular casing is smaller in a region between two axial ends of the tubular casing than an internal diameter of the tubular casing at at least one of the two axial ends. 
     
     
         9 . The heat exchanger device as claimed in  claim 7 , wherein:
 the housing includes two covers;   the tubular casing is connected to the two covers; and   the tubular casing is tapered at least on one side in a region between the two covers.   
     
     
         10 . The heat exchanger device as claimed in  claim 9 , wherein an internal diameter of the tubular casing is smaller in a region between two axial ends of the tubular casing than an internal diameter of the tubular casing at both axial ends. 
     
     
         11 . The heat exchanger device as claimed in  claim 7 , wherein the tubular casing contacts the at least one cover exclusively on an inner side of the tubular casing. 
     
     
         12 . The heat exchanger device as claimed in  claim 7 , wherein:
 one of a refrigerant and a heat exchanger fluid flows in the heat exchanger coil under high pressure; and   the heat exchanger coil surrounds at least sections of the refrigerant collecting vessel in a helical manner.   
     
     
         13 . The heat exchanger device as claimed in  claim 7 , wherein the at least one cover includes an external diameter that is greater than an internal diameter of the tubular casing in a region between two axial ends of the tubular casing. 
     
     
         14 . The heat exchanger device as claimed in  claim 7 , wherein:
 the heat exchanger coil is arranged over the refrigerant collecting vessel and fluidically connected to that at least one cover;   the tubular casing is arranged over the heat exchanger coil; and   the tubular casing is deformed radially inward.   
     
     
         15 . The heat exchanger device as claimed in  claim 9 , wherein the tubular casing contacts at least one of the two covers exclusively on an inner side of the tubular casing. 
     
     
         16 . The heat exchanger device as claimed in  claim 9 , wherein one of a refrigerant and a heat exchanger fluid flows in the heat exchanger coil under high pressure, and the heat exchanger coil surrounds at least sections of the refrigerant collecting vessel in a helical manner. 
     
     
         17 . The heat exchanger device as claimed in  claim 9 , wherein at least one of the two covers includes an external diameter that is greater than an internal diameter of the tubular casing in a region between two axial ends of the tubular casing. 
     
     
         18 . The heat exchanger device as claimed in  claim 14 , wherein an internal diameter of the tubular casing is smaller in a region between two axial ends of the tubular casing than an internal diameter of the tubular casing at at least one of the two axial ends. 
     
     
         19 . The heat exchanger device as claimed in  claim 14 , wherein the tubular casing contacts the at least one cover exclusively on an inner side of the tubular casing. 
     
     
         20 . A heat exchanger device comprising:
 a housing with at least one cover and a tubular casing, the tubular casing connected to that at least one cover such that the tubular casing contacts that at least one cover exclusively on an inner side of the tubular casing;   a refrigerant collecting vessel; and   a heat exchanger coil configured to surround at least sections of the refrigerant collecting vessel in a helical manner;   wherein the tubular casing is tapered at least on one side in a region between two axial ends of the tubular casing.