Control method and system of air suspension centrifugal air compressor
An air suspension and control method technology, applied in pump control, mechanical equipment, machine/engine, etc., can solve problems such as damage to internal components such as bearings, imbalance of centrifugal air compressor rotors, and poor suspension accuracy of rotating shafts, etc., to avoid hazards , Improving operational reliability and suppressing the effect of surge
Pending Publication Date: 2022-05-31
CHONGQING JIANGJIN SHIPBUILDING IND
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Problems solved by technology
[0004] However, when the operating conditions change abruptly, the surge of the centrifugal air compressor will cause the suspension accuracy of the shaft to deteriorate. The traditional anti-surge method has no time to adjust the operating conditions of the centrifugal air compressor, and the centrifugal air compressor rotor imbalance, bearings, etc. will occur. severe damage to internal components
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[0029] Embodiments of the present invention are described in detail below, examples of which are shown in the drawings, wherein the same or similar reference numerals designate the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the figures are exemplary and are intended to explain the present invention and should not be construed as limiting the present invention.
[0030] see Figure 1 ~ Figure 3 In a first aspect, the present invention provides a control method for an air suspension centrifugal air compressor, comprising:
[0031] S101 acquires the suspension position deviation value of the air bearing of the centrifugal air compressor and the fluctuation value of the motor control current of the centrifugal air compressor;
[0032] The deviation value of the suspension position of the air bearing can specifically be the deviation value of the suspension position of the air bearing of the...
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The invention relates to the field of centrifugal air compressor control, in particular to a control method and system for an air suspension centrifugal air compressor, and the method comprises the steps: obtaining an air bearing suspension position deviation value of the centrifugal air compressor and a fluctuation value of a motor control current of the centrifugal air compressor; and whether the centrifugal air compressor is in a surge state or not is judged based on the air bearing suspension position deviation value and the fluctuation value of the motor control current, and if the centrifugal air compressor is in the surge state, the air bearing parameter value of the centrifugal air compressor is adjusted according to the air bearing suspension position deviation value of the centrifugal air compressor.
Description
technical field [0001] The invention relates to the field of centrifugal air compressor control, in particular to a control method and system for an air suspension centrifugal air compressor. Background technique [0002] The air-suspension centrifugal air compressor uses variable air power to stably suspend the shaft in space, and has the advantages of no oil, no friction and no maintenance. [0003] Surge is an inherent characteristic of the centrifugal air compressor. When the centrifugal air compressor surges, the strong air flow disturbance will make the suspension accuracy of the shaft worse. In severe cases, there is a risk of damage to the centrifuge. At present, most centrifugal air compressors ensure that they operate in a safe area by adding anti-surge valves to balance the inlet and outlet pressures of the centrifugal air compressor, that is, let the centrifugal air compressor operate on the right side of the surge avoidance line. side. [0004] However, when t...
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IPC IPC(8): F04D27/02F04D17/10
CPCF04D27/02F04D17/10
Inventor 胡章虎万晓敏何晓燕袁小平何小均龚由春
Owner CHONGQING JIANGJIN SHIPBUILDING IND