I have a question for all the teachers
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During the increase in load in the current section, what impact does an excessive ratio of hydrogen to nitrogen have on the syngas compressor, whether there is too much hydrogen or too much nitrogen? What changes will occur in its inlet pressure, current, and rotational speed? Should it be analyzed from the perspective of the molecular mass of hydrogen and nitrogen? Thank you all. I hope all the teachers can reply as in detail as possible! Thank you.
Additionally, we use a centrifugal compressor, and the high-pressure cylinder includes a circulation section. Thank you
The flow meter of our factory’s compressors is calibrated taking into account the molecular weights of hydrogen and nitrogen; when the hydrogen level is high, the inlet flow rate is low, the inlet pressure is high, the actual rotation speed is higher than the set speed, and the surge point is closer to the surge line. The opposite is true when the nitrogen level is high. Is that the case in the owner’s factory?
I think what you mean is an imbalance in the hydrogen-to-nitrogen ratio; when there’s too much hydrogen, the compressor can’t draw in air. I’m not sure about the other aspects
I’m really sorry; I don’t know how the flow meters in my factory are calibrated, as I haven’t yet received specific training for the compressor position. Someone asked me a question and asked me to think about it
1. If the nitrogen content increases, the axial thrust of the compressor will rise, and the compression pressure will decrease; failure to make timely adjustments may lead to surge, damaging the machine. 2. If the hydrogen content increases, the unit may experience a \"runaway,\" leading to a shutdown of the system. 3. Bearing temperature rise: If the load is too high, the speed should be reduced appropriately. If the oil temperature is too high or if the oil pipe in question is blocked by sludge, resulting in throttling and low oil pressure, the oil temperature, oil volume, or oil pressure should be adjusted. If the thrust bearing pads are worn out, the only option is to reduce the load and be prepared to stop at any time.