Turbocompressor

Abstract

A turbocompressor provided with a case, a centrifugal first stage and second stage compressing unit disposed on the case, and a driver unit for driving the first stage and second stage compressing units. The interior of the case is partitioned into a first cooling area which houses a first cooling device, a second cooling area which houses a second cooling device, an oil tank, and a blowoff silencer chamber. The blowoff silencer chamber is located between the oil tank and the first cooling area and the second cooling area in the interior of the case.

What is claimed is: 
     
         1 . A turbocompressor comprising:
 a case;   a centrifugal first stage compressing unit disposed on the case;   a centrifugal second stage compressing unit disposed on the case; and   a driver unit configured to drive the first stage compressing unit and the second stage compressing unit, wherein   the case is partitioned into a first cooling area which houses a first cooling device and to which external air compressed by the first stage compressing unit is fed, a second cooling area which houses a second cooling device and to which air that passes through the first cooling area and is further compressed by the second stage compressing unit is fed, an oil tank which houses lubricant oil to be fed to the driver unit, and a blowoff silencer chamber to which the air that passes through the second cooling area and is to be discharged to atmosphere is fed, and   the blowoff silencer chamber houses a blowoff silencer, and is located between the oil tank and the first cooling area as well as the second cooling area in an interior of the case.   
     
     
         2 . The turbocompressor of  claim 1 , wherein
 the case comprises partition plates which partition the interior of the case into the first cooling area, the second cooling area, the oil tank, and the blowoff silencer chamber, and   the first cooling area, the second cooling area, the oil tank, and the blowoff silencer chamber are integrally formed from a casting.