| 摘要 |
A system for controlling the operation of a turbo type fluid machine (1) driven by a variable speed prime mover (3), which enables the characteristics of the fluid machine (1) to be improved so as to become favorable for actual use while allowing the prime mover (3) to exhibit its capacity to the full even at an operating point other than the rated point. The operation control system includes a turbo type fluid machine (1) driven by a driving machine (3), and a device for detecting an operating head or operating pressure of the fluid machine. The operation control system further includes a device (5) for arithmetically outputting a rotational speed which gives a preset characteristic of the fluid machine in corresponding relation to the operating head or operating pressure, and a device (4) for changing the rotational speed of the driving machine in response to the output rotational speed, so that even when the operating head or operating pressure of the fluid machine (1) changes, the rotational speed of the fluid machine is controlled so as to maintain the preset characteristic of the fluid machine (1). <IMAGE> |
