Constant pressure air feeding control method for multistage centrifugal air compressor
An air compressor and control method technology, applied in engine control, pump control, mechanical equipment, etc., can solve the problems of surge shutdown, overcurrent shutdown, and constant gas supply at the gas site, and achieve the effect of stabilizing the working pressure
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[0027] The present invention will be described in further detail below in conjunction with the embodiments and accompanying drawings.
[0028] see figure 1 As shown, the control method for constant-pressure air supply of a multi-stage centrifugal air compressor is characterized in that it includes the following steps:
[0029] The first step is to obtain the performance curve of the multi-stage compressor according to the design parameters of the multi-stage compressor combined with performance simulation and experimental data;
[0030] The second step is to determine the unloading pressure value and reloading pressure value, combined with the first step to determine the surge area, guide vane adjustment area and vent valve adjustment area of the multi-stage compressor;
[0031] The third step is to set the set pressure value P when the compressor works normally. 设定 and dead zone range, based on the difference between the target value and the actual value, select different...
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