TURBO COMPRESSOR SYSTEM
Document Type and Number:
Japanese Patent JP3890778
PROBLEM TO BE SOLVED: To provide a turbo compressor system capable of reducing a maintenance cost while restricting noise due to blow-off during non-load operation.
SOLUTION: A turbo compressor system includes turbo compressors 1a, 1b connected to a suction pipe 8 provided with a filter 35 in a suction port, a discharge pipe 10 connected to the discharge side of the final stage compressor 1b, a blow-off passage 11 having one end connected to the discharge pipe 10 and the other end connected to the suction side of the first stage compressor 1a and a blow-off valve 4 provided in the blow-off passage 11, wherein the blow-off valve 4 is open during non-load operation to guide compressed air discharged from the final stage compressor 1b via the discharge pipe 10 to the suction side of the first stage compressor 1a. A chamber 14 and a hole 15 are provided at a joint 12 between the other end of the blow-off passage 11 and the suction side of the first stage compressor 1a for using air guided via the blow-off passage 11 during non-load operation to increase the peripheral velocity component of an air flow on the suction side of the first stage compressor 1a.
December 15, 2006
October 14, 1998
F04D27/02; F04D29/66; F04D27/02; F04D29/66; (IPC1-7): F04D29/66; F04D27/02