Turbo compressor and turbo refrigerator

Abstract

A turbo compressor according to the present invention includes: a flow rate adjustment section which adjusts the flow rate of gas that is introduced into an impeller; a driving section which drives the flow rate adjustment section; and a power transmission shaft which transmits power that is generated by the driving section to the flow rate adjustment section, wherein the turbo compressor further includes a frame which is provided to surround the flow rate adjustment section, and the frame has an intake port for gas that is introduced into the impeller and a hole portion in which the power transmission shaft is provided passing through.

1 . A turbo compressor comprising:
 a flow rate adjustment section which adjusts the flow rate of gas that is introduced into an impeller;   a driving section which drives the flow rate adjustment section; and   a power transmission shaft which transmits power that is generated by the driving section to the flow rate adjustment section,   wherein the turbo compressor further includes a frame which is provided to surround the flow rate adjustment section, and the frame has an intake port for gas that is introduced into the impeller and a hole portion in which the power transmission shaft is provided passing through.   
     
     
         2 . The turbo compressor according to  claim 1 , wherein the frame is provided in an annular shape to surround the flow rate adjustment section and has an outer diameter which is reduced as it becomes more distant from the impeller. 
     
     
         3 . The turbo compressor according to  claim 1 , further comprising: a connection section which connects an output shaft which outputs the power of the driving section and the power transmission shaft. 
     
     
         4 . The turbo compressor according to  claim 2 , further comprising: a connection section which connects an output shaft which outputs the power of the driving section and the power transmission shaft. 
     
     
         5 . The turbo compressor according to  claim 1 , further comprising: a seal member which keeps the hole portion, in which the power transmission shaft is provided passing through, in an airtight manner. 
     
     
         6 . The turbo compressor according to  claim 2 , further comprising: a seal member which keeps the hole portion, in which the power transmission shaft is provided passing through, in an airtight manner. 
     
     
         7 . The turbo compressor according to  claim 3 , further comprising: a seal member which keeps the hole portion, in which the power transmission shaft is provided passing through, in an airtight manner. 
     
     
         8 . The turbo compressor according to  claim 4 , further comprising: a seal member which keeps the hole portion, in which the power transmission shaft is provided passing through, in an airtight manner. 
     
     
         9 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 1  as the compressor.   
     
     
         10 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 2  as the compressor.   
     
     
         11 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 3  as the compressor.   
     
     
         12 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 4  as the compressor.   
     
     
         13 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 5  as the compressor.   
     
     
         14 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 6  as the compressor.   
     
     
         15 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 7  as the compressor.   
     
     
         16 . A turbo refrigerator comprising:
 a condenser which cools and liquefies a compressed refrigerant;   an evaporator which cools a cooling object by evaporating the liquefied refrigerant, thereby taking heat of vaporization away from the cooling object; and   a compressor which compresses the refrigerant evaporated in the evaporator and then supplies the compressed refrigerant to the condenser,   wherein the turbo refrigerator is provided with the turbo compressor according to  claim 8  as the compressor.