| 摘要 |
PROBLEM TO BE SOLVED: To provide a two-stage compressor enabling effective heat recovery from cooling water after compressed gas is cooled. SOLUTION: The two-stage compressor 1 includes: a first compressor 2 and a second compressor 3 compressing gas; and a first cooler 4 and a second cooler 5 cooling gas by heat exchange with cooling fluid. In the two-stage compressor 1, a first fluid passage configuration for introducing gas discharged from the first compressor 2 to the second compressor 3 via the first cooler 4 and supplying gas discharged from the second compressor 3 to a demand destination via the second cooler 5 and a second fluid configuration for introducing gas discharged from the first compressor 2 to the second compressor 3 via the first cooler 4 and second cooler 5 and supplying gas discharged from the second compressor 3 to the demand destination can be selected. The two-stage compressor 1 includes flow rate control means 20, 21 setting a flow rate of cooling fluid supplied to the first cooler 4 and second cooler 5 in the second flow passage configuration smaller than that in the first flow passage configuration. COPYRIGHT: (C)2011,JPO&INPIT |
