| 摘要 |
PURPOSE: A balance line of a centrifugal compressor is provided to enhance the efficiency of a centrifugal compressor because oil does not flow to an impeller even though the oil inside an oil tank flows into an IGV(Inlet Guide Vane) of the centrifugal compressor and is induced to flow toward an outer side. CONSTITUTION: A centrifugal compressor(100) comprises an impeller(107), an oil tank(109), and a valve. The impeller is arranged inside a case(110). The oil tank is arranged in the rear side of the impeller. The valve is arranged in the front side of the impeller. One end part of a balance line is connected to the oil tank. The other end part of the balance line is connected to the lower part of the case by corresponding to the valve.
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