Turbo compressor system having at least two driving motors

Abstract

The present disclosure relates to a turbo compression system having two or more driving motors provided with a motor-cooling system for efficiently cooling two or more driving motors in the gearless type turbo compressor. An aspect of a turbo compression system having two or more driving motors according to the present disclosure comprises a first, second and third impeller provided separately; two or more driving motor rotating at least one among the first, second and third impeller; and a cooling impeller provided unitarily and simultaneously cooling the two or more driving motor. On the other hand, the turbo compression system having two or more driving motors further may comprise a fan motor rotating the cooling impeller and provided separately from the two or more driving motor.

What is claimed is: 
     
         1 . A turbo compression system having two or more driving motors, comprising:
 A first, second and third impeller provided separately;   Two or more driving motor rotating at least one among the first, second and third impeller; and   A cooling impeller provided unitarily and simultaneously cooling the two or more driving motor.   
     
     
         2 . The turbo compression system having two or more driving motors as claimed in  claim 1 , wherein the cooling impeller is connected to a rotation shaft of one of the two or more driving motor and rotates. 
     
     
         3 . The turbo compression system having two or more driving motors as claimed in  claim 2 , wherein the cooling impeller is direct-connected to a rotation shaft of one of the two or more driving motor. 
     
     
         4 . The turbo compression system having two or more driving motors as claimed in  claim 2 , wherein the cooling impeller is provided with an axial flow type impeller. 
     
     
         5 . The turbo compression system having two or more driving motors as claimed in  claim 1 , further comprises a fan motor rotating the cooling impeller and provided separately from the two or more driving motor. 
     
     
         6 . The turbo compression system having two or more driving motors as claimed in  claim 2 , wherein the two or more driving motor includes a first motor connecting with the first impeller and the second impeller at both sides of the first motor, and a second motor connecting with the third impeller at its one side and connecting with the cooling impeller at its the other side. 
     
     
         7 . The turbo compression system having two or more driving motors as claimed in  claim 6 , further comprises a cooling flow path connecting into the cooling impeller after passing through one and the other of the first motor and the second motor in sequence. 
     
     
         8 . The turbo compression system having two or more driving motors as claimed in  claim 6 , further comprises a cooling flow path passing through the first motor and the second motor separately, joining and then connecting into the cooling impeller. 
     
     
         9 . The turbo compression system having two or more driving motors as claimed in  claim 5 , further comprises:
 the two or more driving motor including a first motor connecting with the first impeller and the second impeller at both sides of the first motor, and a second motor connecting with the third impeller at its one side; and   a cooling flow path connecting into the cooling impeller after passing through one and the other of the first motor and the second motor in sequence.   
     
     
         10 . The turbo compression system having two or more driving motors as claimed in  claim 9 , wherein the cooling impeller is provided with an axial flow type impeller.