| 摘要 |
In a gas compression device that compresses gas by a compression means that is arranged in a plurality in series with respect to the flow direction of the gas, controlling the flow rate of the gas that is drawn into the gas compression portion in accordance with the demand amount of the gas of the demand end and, in the case of the flow rate of each compression means falling below a set value that is set based on the surging value, circulating and supplying at least a portion of the gas that is discharged from the gas compression portion to a diffuser of the compression means. For this reason, it is possible to sufficiently reduce the load of the driving means while suppressing the occurrence of surging in the compression means, and it is possible to reduce the consumption of energy. |
