| 摘要 |
A regulating method for preventing surges in turbo-compressors, in which the compressor flow and forwarding pressure are continuously measured. The compressor operating point is defined by the compressor flow and the forwarding pressure. Surges are prevented by regulating the opening of at least one blow-off valve by a regulator with an adjustment parameter when the operating point has arrived at a blow-off curve that parallels a surge limit, but before the operating point arrives at the surge limit. The adjustment parameter is returned to an actual state of the blow-off valve by a readjustment circuit when a difference exceeding a predetermined threshold occurs betwen the actual state of the blow-off valve and the adjustment parameter of the regulator.
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