CENTRIFUGAL COMPRESSOR AND WATER CHILLER HAVING SAME

摘要

A centrifugal compressor and a water chiller having same. The centrifugal compressor comprises an impeller (2), a diffuser (3), a volute (8) and an exhaust diffuser pipe (9). The diffuser (3) comprises a pressurization channel (31), and the gas flowing through the impeller (2) enters the inlet of the pressurization channel (31). The volute (8) is used for collecting the gas pressurized through the diffuser (3), and the exhaust diffuser pipe (9) is communicated with the volute (8). The extending direction of the exhaust diffuser pipe (9) is inclined downwards relative to the horizontal plane. By setting the extending direction of the exhaust diffuser pipe (9) communicated with the volute (8) inclined downwards relative to the horizontal plane, the noise and gas flow loss of high-temperature high-pressure gas in the exhaust diffuser pipeline (9) expelled from the centrifugal compressor and caused by bending of the pipe, can be reduced, and the noise is effectively lowered.