Method for Repairing and/or Checking an in Particular Refrigerating Installation Accommodated in a Tank Which is Closed in a Pressure-Tight Manner, and Tank for Implementing the Method

Abstract

Method for repairing and/or checking a refrigerating installation accommodated in a tank which is closed in a permanently pressure-tight manner, includes the steps of cutting the tank open at at least one predetermined severing location, repairing and/or checking the installation located in the tank, and closing the tank at the severing location by an integral connection.

1 . A method for repairing and/or checking a refrigerating module accommodated in a tank which is closed in a permanently pressure-tight manner, wherein the refrigerating module comprises a closed local refrigeration circuit with a compressor and a heat exchanger, the method comprising:
 cutting open the tank at at least one predetermined severing location,   repairing and/or checking the refrigerating module located in the tank,   and closing the tank at the severing location ( 14 ,  15 ;  23 ,  23 ′,  23 ″;  32 ,  36 ) by a firmly bonded connection.   
     
     
         2 . The method according to  claim 1 , wherein, the tank is severed in at least two separate tank parts, and that after the repair of the installation, the at least two separate tank parts are connected again to each other in a firmly bonded manner. 
     
     
         3 . The method according to  claim 2 , wherein the at least two separate tank parts are welded together. 
     
     
         4 . The method according to  claim 1 , wherein at least one tube is fed outward through the tank wall, wherein for feeding through the at least one tube, the tank has a tube socket which protrudes outward from the tank wall and through which the at least one tube is fed outward, and the outside of the tube is connected to the outer end of said tube socket in a pressure-tight manner, wherein for repairing and/or checking the installation, the tube socket with the tube placed therein is cut through at a first predetermined severing location, and that after the repair work and/or check, the tube socket is closed again in a pressure-tight manner by a firmly bonded connection with the pipe fed therethrough. 
     
     
         5 . The method according to  claim 4 , wherein the at least one tube is connected by a weld on the outside of the tube in pressure-tight manner to the outer end of the tube socket, and wherein after the repair work and/or check, the tube socket is closed again in a pressure-tight manner by welding it to the tube fed therethrough. 
     
     
         6 . The method according to  claim 4 , wherein the at least one tube is cut through at a second severing location positioned outside the first severing location thereby forming a gap in the tube, wherein for closing the gap after the repair work and/or check, the cut-off tube coming out of the tank is first moved outward through the tube socket such that it adjoins, at the second severing location, the tube part located on the outside, wherein the two ends of the tube are connected to each other, and wherein the tube socket is closed again in a pressure-tight manner by a firmly bonded connection with the tube fed therethrough. 
     
     
         7 . The method according to  claim 6 , wherein the two ends of the tube are connected to each other by a weld. 
     
     
         8 . The method according to  claim 6 , wherein the at least one tube is connected to an installation part arranged in the tank, and wherein the tube is displaced together with the installation part. 
     
     
         9 . The method according to  claim 4 , wherein the at least one tube is cut through at a second severing location positioned outside the first severing location and at a third severing location inside the tank thereby forming a gap, wherein after the repair work and/or check, a suitable tube piece is inserted into the gap for closing said gap and is connected at the second and third severing locations to the ends of the tube, and wherein the tube socket is closed again in a pressure-tight manner by a firmly bonded connection with the inserted tube piece. 
     
     
         10 . The method according to  claim 9 , wherein the tube piece is connected by a weld to each of the ends of the tube. 
     
     
         11 . The method according to  claim 1 , wherein on the tank, an outward-facing flange connection is arranged that has a flange which is closed by a cover attached thereon, wherein the flange connection is surrounded by a cap which is fastened to the flange connection and closes the flange connection in a pressure-tight manner with respect to the outside, wherein for repairing and/or checking the installation accommodated in tank, the cap is cut open at a severing location, and wherein after completion of the repair work and/or check, the cap is fastened again to the flange connection in a pressure-tight manner. 
     
     
         12 . The method according to  claim 11 , wherein the flange is spaced apart from the tank wall, wherein a socket extending towards the tank is attached to the flange, wherein the cap pulled over the flange connection and the socket is connected to the free end of the socket in a firmly bonded manner, and wherein the connection point is severed at the severing location by simultaneously cutting through the cap and the socket. 
     
     
         13 . The method according to  claim 11 , wherein the flange is spaced apart from the tank wall, wherein between the flange and the tank wall, a flange ring is attached that extends parallel towards the flange, that the cap pulled over the flange connection is connected to the outer edge of the flange ring in a firmly bonded manner, and wherein the connection point is severed at the severing location by simultaneously cutting through the cap and the flange ring. 
     
     
         14 . The method according to  claim 11 , wherein the cap is connected by a weld to the flange connection, and after completion of the repair work and/or check, the cap is fastened again by a weld in a pressure-tight manner to the flange connection. 
     
     
         15 . A tank, comprising a refrigerating module accommodated therein, wherein the refrigerating module comprises a closed local refrigeration circuit with a compressor and a heat exchanger, wherein the tank is configured for carrying out the method according to  claim 1 , and wherein the tank is closed in a gas-tight and/or pressure-tight manner by means of firmly bonded connections between its parts. 
     
     
         16 . The tank according to  claim 15 , wherein from the installation accommodated in the tank at least one tube is fed outward through the tank wall, and wherein for feeding through the at least one tube, the tank has a tube socket which protrudes outward from the tank wall and through which the at least one tube is fed outward, and the outside of the tube is connected to the outer end of said tube socket in a pressure-tight manner. 
     
     
         17 . The tank according to  claim 16 , wherein the at least one tube is connected by a weld on the outside of the tube in a pressure-tight manner to the outer end of the tube socket. 
     
     
         18 . The tank according to  claim 15 , wherein on the tank, an outward-facing flange connection is arranged that has a flange which is closed by a cover attached thereon, and wherein the flange connection is surrounded by a cap which is fastened to the flange connection and closes the flange connection in a pressure-tight manner with respect to the outside. 
     
     
         19 . The tank according to  claim 18 , wherein the flange is spaced apart from the tank wall, wherein a socket extending towards the tank is attached to the flange, and wherein the cap pulled over the flange connection and the socket is connected to the free end of the socket in a firmly bonded manner. 
     
     
         20 . The tank according to  claim 18 , wherein the flange is spaced apart from the tank wall, wherein between the flange and the tank wall, a flange ring is attached that extends parallel towards the flange, and wherein the cap pulled over the flange connection is connected to the outer edge of the flange ring in a firmly bonded manner. 
     
     
         21 . The tank according to  claim 18 , wherein the cap is connected by a weld to the flange connection.