DEVICE AND METHOD FOR RELIABLY OPERATING A COMPRESSOR AT THE PUMP THRESHOLD

A method is used for determining an operating point of a compressor that includes at least one impeller, compressor blades attached to the impeller, a housing and at least two sensors. The method includes calculating a deflection of the compressor blades. An operating point and a surge margin with r...

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Bibliographische Detailangaben
Hauptverfasser:	REITEBUCH, DANIEL, MAGNOR, OLAF, KÖLLER, MALTE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ARRANGEMENTS, SYSTEMS OR APPARATUS FOR CHECKING NOT PROVIDEDFOR ELSEWHERE BLASTING CHECKING-DEVICES ENGINE PLANTS IN GENERAL GENERATING RANDOM NUMBERS HEATING LIGHTING MACHINES OR ENGINES IN GENERAL MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING MECHANICAL ENGINEERING NON-POSITIVE DISPLACEMENT MACHINES OR ENGINES, e.g. STEAMTURBINES NON-POSITIVE DISPLACEMENT PUMPS PHYSICS POSITIVE DISPLACEMENT MACHINES FOR LIQUIDS PUMPS FOR LIQUIDS OR ELASTIC FLUIDS REGISTERING OR INDICATING THE WORKING OF MACHINES STEAM ENGINES TESTING TIME OR ATTENDANCE REGISTERS VOTING OR LOTTERY APPARATUS WEAPONS
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Beschreibung
Zusammenfassung:	A method is used for determining an operating point of a compressor that includes at least one impeller, compressor blades attached to the impeller, a housing and at least two sensors. The method includes calculating a deflection of the compressor blades. An operating point and a surge margin with respect to a surge limit are determined based on the calculating of the deflection by measuring passage times of the compressor blades at a sensor. A signal that is representative of a rotation speed is determined and is associated with the compressor impeller. In a learning or adaptation mode, compressor blade-specific, state-induced and position-induced deviations from an ideal state are determined using compressor blade-specific passage times that are measured and compared with ideal passage times. In a working mode, compressor blade-specific passage times are measured and the compressor blade-specific passage times are corrected using the determined state-induced and position-induced deviations.