Gas refrigerating machine, method for operating a gas refrigerating machine and method for manufacturing a gas refrigerating machine having a rotationally symmetrical design

Abstract

A gas refrigerating machine having: an input for gas; a recuperator including a first recuperator input, a first recuperator output, a second recuperator input, and a second recuperator output; a compressor having a compressor input and a compressor output, the compressor input being coupled to the first recuperator output; a heat exchanger having a first heat exchanger input and a first heat exchanger output on a primary side of the heat exchanger, and a second heat exchanger input and a second heat exchanger output on a secondary side of the heat exchanger, wherein the first heat exchanger input is coupled to the compressor output, and wherein the first heat exchanger output is coupled to the second recuperator input; a turbine having a turbine input and a turbine output, wherein the turbine input is connected to the second recuperator output, and wherein the gas output is coupled to the turbine output.

1 . A gas refrigerating machine comprising:
 an input for gas to be cooled;   a recuperator comprising a first recuperator input, a first recuperator output, a second recuperator input, and a second recuperator output;   a compressor comprising a compressor input and a compressor output, the compressor input being coupled to the first recuperator output;   a heat exchanger comprising a first heat exchanger input and a first heat exchanger output on a primary side of the heat exchanger, and a second heat exchanger input and a second heat exchanger output on a secondary side of the heat exchanger, wherein the first heat exchanger input is coupled to the compressor output, and wherein the first heat exchanger output is coupled to the second recuperator input;   a turbine comprising a turbine input and a turbine output, wherein the turbine input is connected to the second recuperator output, and wherein the gas output is coupled to the turbine output; and   a gas output.   
     
     
         2 . The gas refrigerating machine according to  claim 1 , comprising a suction region and an intake wall, the suction region extending away from the compressor input and being delimited by the intake wall, wherein the compressor input is connected to the suction region, and wherein the recuperator extends at least partially around the suction region and is delimited by the intake wall. 
     
     
         3 . The gas refrigerating machine according to  claim 1 ,
 wherein the input for the gas is arranged in a region to be cooled and is configured to suck a gas having a first temperature from the region to be cooled, wherein the gas output is arranged in the region to be cooled and is configured to output the gas having a second temperature into the region to be cooled, wherein the second temperature is lower than the first temperature, and wherein the input for the gas is arranged above the gas output in an operating direction of gas refrigerating machine.   
     
     
         4 . The gas refrigerating machine according to  claim 1 ,
 comprising a drive motor having a rotor, wherein the compressor comprises a compressor wheel, wherein the turbine comprises a turbine wheel, and wherein the compressor wheel has a larger diameter than the rotor of the drive motor or a larger diameter than the turbine wheel of the turbine.   
     
     
         5 . The gas refrigerating machine according to  claim 1 , comprising a drive motor having a rotor, wherein the compressor comprises a compressor wheel, wherein the turbine comprises a turbine wheel, and wherein the rotor is arranged between the compressor wheel and the turbine wheel. 
     
     
         6 . The gas refrigerating machine according to  claim 1 , comprising a drive motor having a rotor, wherein the turbine comprises a turbine wheel, and wherein the compressor comprises a compressor wheel, a first axis portion, and a second axis portion,
 wherein the compressor wheel, the first axis portion, the rotor, the second axis portion, and the turbine wheel are formed integrally.   
     
     
         7 . The gas refrigerating machine according to  claim 1 , wherein the compressor comprises a compressor wheel and a first bearing portion, wherein the turbine comprises a turbine wheel and a second bearing portion, and
 wherein the first bearing portion is formed on the compressor wheel and the second bearing portion is formed on the turbine wheel.   
     
     
         8 . The gas refrigerating machine according to  claim 1 , wherein the recuperator is arranged in an outer region of a volume of the gas refrigerating machine and the compressor input is arranged in an inner region of the volume of the gas refrigerating machine. 
     
     
         9 . The gas refrigerating machine according to  claim 1 , comprising an intake wall and a suction region, the suction region being delimited by the intake wall, wherein the recuperator comprises a volumetric shape comprising an opening forming the suction region, wherein the intake wall extends from a first end of the opening forming the compressor input to a second end of the opening closed by a cover. 
     
     
         10 . The gas refrigerating machine according to  claim 1 , comprising an intake wall and a suction region, the suction region being delimited by the intake wall, wherein the suction region comprises a continuously increasing opening area from a first end to a second end, and wherein the intake wall is formed to be continuous or stepless. 
     
     
         11 . The gas refrigerating machine according to  claim 1 , wherein the compressor comprises a drive motor having a stator and a rotor interacting with the stator, and a compressor wheel, wherein the turbine comprises a turbine wheel, wherein the compressor wheel and the turbine wheel are arranged on a common axis, and wherein the rotor of the drive motor is arranged on the common axis. 
     
     
         12 . The gas refrigerating machine according to  claim 1 , wherein the recuperator comprises a counter-flow heat exchanger, wherein the gas refrigerating machine is configured so that the gas moves through the input for the gas, from an outside of the counter-flow heat exchanger to an inside of the counter-flow heat exchanger, and wherein the gas refrigerating machine is configured so that the gas discharged from the counter-flow heat exchanger moves from the inside of the counter-flow heat exchanger to the outside of the counter-flow heat exchanger. 
     
     
         13 . The gas refrigerating machine according to  claim 1 , comprising a housing, wherein the housing comprises a side wall and a bottom wall and a top wall, wherein the input for gas to be cooled is arranged in the side wall and the gas output is arranged in the bottom wall or the top wall, or
 wherein the gas output is formed in a bottom of the gas refrigerating machine in an operating direction and is shaped such that the gas output can be placed on a refrigerant gas inlet in a bottom of a room in which the gas refrigerating machine can be installed, or   wherein the gas output is formed in a bottom of the gas refrigerating machine in an operating direction of the gas refrigerating machine, and further a moisture collecting device is provided to collect a condensate formed in the gas output.   
     
     
         14 . The gas refrigerating machine according to  claim 1 , comprising a housing, wherein a housing comprises a diameter between 0.5 m and 1.5 m or a height between 1.0 m and 2.5 m. 
     
     
         15 . The gas refrigerating machine according to  claim 1 ,
 wherein the gas output has a gas output opening area, wherein the turbine comprises a turbine output having a turbine output opening area, wherein the turbine output opening area is smaller than the gas output opening area, and wherein an intermediate opening area between the gas output opening area and the turbine output opening area is continuously widening from the turbine output opening area to the gas output opening area.   
     
     
         16 . The gas refrigerating machine according to  claim 1 , comprising a housing, wherein the housing comprises an elongated shape, wherein the input for the gas to be cooled comprises a plurality of perforations in an upper portion with respect to an operating direction of the gas refrigerating machine of the housing or a wall of the recuperator, and wherein the gas output comprises an opening in a lower portion of the housing with an opening area which is at least 50% of a cross-sectional area of the housing in the upper portion. 
     
     
         17 . The gas refrigerating machine according to  claim 1 , comprising a suction region and an output-side guide chamber,
 wherein the compressor is arranged to move gas via the suction region into the compressor input from top to bottom, and to feed compressed gas from the bottom into the heat exchanger with the output-side guide chamber.   
     
     
         18 . The gas refrigerating machine according to  claim 1 , wherein the heat exchanger comprises a wedge-shaped or disc-shaped volume and the first heat exchanger input on the primary side is arranged on the outside of the wedge-shaped or disc-shaped volume and the first heat exchanger output on the primary side is arranged on the inside of the wedge-shaped or disc-shaped volume, or wherein the first heat exchanger input on the primary side is arranged at the bottom of the wedge-shaped or disc-shaped volume and the first heat exchanger output on the primary side is arranged at the top of the wedge-shaped or disc-shaped volume. 
     
     
         19 . The gas refrigerating machine according to  claim 1 , wherein the recuperator comprises a volume comprising a counter-flow heat exchanger structure in an outer region and comprising a suction region in an inner region, wherein the first recuperator input is arranged on the outside of the outer region, wherein the first recuperator output is arranged at the inner region to direct gas into the suction region, wherein the second recuperator input is also arranged at the inner region and the second recuperator output is also arranged at the outer region,
 wherein the first recuperator input and the second recuperator output are fluidically separated in the recuperator and the first recuperator output and the second recuperator input are fluidically separated in the recuperator.   
     
     
         20 . The gas refrigerating machine according to  claim 1 , wherein the recuperator comprises interconnected first gas channels from the first recuperator input to the first recuperator output and comprises second interconnected gas channels between the second recuperator input and the second recuperator output,
 wherein the first gas channels and the second gas channels are arranged in thermal interaction,   the recuperator comprising, at the second recuperator input, a first collection region connecting the second gas channels on one side and extending along the inner region and forming the second recuperator input, and a second collection region connecting the second gas channels on another side and extending along an edge portion of the outer region and forming the second recuperator output, and   wherein the gas refrigerating machine comprises an intake wall delimiting the first collection region and separating the first collection region from the suction region.   
     
     
         21 . The gas refrigerating machine according to  claim 1 , wherein the heat exchanger is arranged between the recuperator and the compressor. 
     
     
         22 . The gas refrigerating machine according to  claim 1 , wherein the turbine comprises a turbine input, the turbine input being connected to a second recuperator output via a connection region, the connection region extending around the heat exchanger. 
     
     
         23 . The gas refrigerating machine according to  claim 1 ,
 comprising an electronics module for supplying power to a drive motor for the compressor or for providing control data to an element of the gas refrigerating machine or for acquiring sensor data from an element of the gas refrigerating machine, wherein the electronics module is disposed in a region within the housing of the gas refrigerating machine, the region being configured to cool the electronics module.   
     
     
         24 . The gas refrigerating machine according to  claim 1 , comprising an electronics module for supplying power to a drive motor for the compressor or for providing control data to an element of the gas refrigerating machine or for acquiring sensor data from an element of the gas refrigerating machine, wherein the turbine comprises a turbine output, and wherein the electronics module is disposed in a region between the turbine output and the gas output and the wall of the housing outside the gas output. 
     
     
         25 . The gas refrigerating machine according to  claim 1 , comprising an electronics module for supplying power to a drive motor for the compressor or for providing control data to an element of the gas refrigerating machine or for acquiring sensor data from an element of the gas refrigerating machine,
 wherein the electronics module is disposed in a region between a base of a compressor wheel of the compressor and a base of a turbine wheel of the turbine.   
     
     
         26 . The gas refrigerating machine according to  claim 1 , comprising an electronics module for supplying power to a drive motor for the compressor or for providing control data to an element of the gas refrigerating machine or for acquiring sensor data from an element of the gas refrigerating machine,
 wherein the electronics module is disposed on a boundary member of a turbine input of the turbine, the electronics module being further disposed outside the turbine input of the turbine.   
     
     
         27 . The gas refrigerating machine according to  claim 1 , comprising an electronics module for supplying power to a drive motor for the compressor or for providing control data to an element of the gas refrigerating machine or for acquiring sensor data from an element of the gas refrigerating machine,
 wherein the electronics module comprises an opening in a center of the electronics module and is disk-shaped and extends around a stator of a drive motor for the compressor or is formed integrally with the stator, and is disposed in a region between a base of a compressor wheel of the compressor and a base of a turbine wheel of the turbine.   
     
     
         28 . A method for operating a gas refrigerating machine comprising: an input for gas to be cooled; a recuperator comprising a first recuperator input, a first recuperator output, a second recuperator input, and a second recuperator output; a compressor comprising a compressor input and a compressor output, the compressor input coupled to a first recuperator output; a heat exchanger comprising a first heat exchanger input and a first heat exchanger output on a primary side of the heat exchanger, and a second heat exchanger input and a second heat exchanger output on a secondary side of the heat exchanger; and a turbine, the method comprising:
 feeding gas from the gas inlet into the first recuperator input;   feeding gas in the first recuperator output into the compressor input;   feeding gas in the compressor output to the first heat exchanger input;   feeding gas in the first heat exchanger output into the second recuperator input; and   feeding gas in the second recuperator output into the turbine input; and   feeding gas in the turbine output into the gas output.   
     
     
         29 . A method for manufacturing a gas refrigerating machine comprising: an input for gas to be cooled; a recuperator comprising a first recuperator input, a first recuperator output, a second recuperator input, and a second recuperator output; a compressor comprising a compressor input and a compressor output; a heat exchanger comprising a first heat exchanger input and a first heat exchanger output on a primary side of the heat exchanger, and a second heat exchanger input and a second heat exchanger output on a secondary side of the heat exchanger; and a turbine comprising a turbine input and a turbine output, the method comprising:
 coupling the gas inlet and the first recuperator input;   coupling the first recuperator output and the compressor input;   coupling the compressor output and the first heat exchanger input;   coupling the first heat exchanger output and the second recuperator input; and   coupling the second recuperator output and the turbine input; and   coupling the turbine output and the gas output.