Compressor surge
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After startup, adjusting the heat exchanger at the secondary inlet of the air compressor caused surging in the compressor. Even after multiple adjustments to the temperature of the heat exchanger, the air compressor still cannot operate properly. Later, after the reaction rate was reduced, the compressor returned to normal. Excuse me, could an expert help me understand why?
It is caused by an excessive amount of rich gas, a reduced secondary compression ratio, or changes in the molecular weight of the gas in the secondary compressor. Try increasing the rotation speed and boosting the counter-rotation flow as a solution.
Things started off normally at the beginning of work. Later, the manager increased the flow rate of the circulating water in the heat exchanger in front of the secondary entrance, and the compressor started to surge. Later on, it gradually evolved into a reaction of pressure buildup. It was originally planned to cut the material, but things returned to normal after reducing the amount.
Control the secondary temperature well and increase the speed
I can’t figure out why it returned to normal as soon as the pressure dropped Later, the amount was increased back to normal, and only then did the compressor operate steadily.
Isn’t the surge valve set to semi-automatic or automatic? Enlarging the circulating water flow results in an immediate drop in temperature after cooling, a significant decrease in flow rate, and an increased secondary compression ratio; as a result, surging occurs. After the engine experiences surge, opening the anti-surge valves results in pressure buildup. So the rotation speed cannot be too low, and the inlet flow rate must not fluctuate significantly; adjustments in all aspects require precision, as opening the circulating water too much is a problem
Does the master think that the rich gas temperature also has an impact on compressor surging? How does it affect it?
Compare it with the surge line of the compressor and you’ll understand
The most direct factor causing the compressor to run improperly is a reduced amount of rich gas; find ways to supply more gas, reduce liquid condensation, and saving steam should not result in damage to the equipment
Compressor surge occurs when the inlet flow rate decreases to a certain level; this flow rate is known as the compressor’s surge flow rate, and it represents the minimum flow rate required to maintain normal operation of the compressor. At different speeds, the compressor has different surge flows; by connecting these surge flows at various speeds, a surge line for the compressor is obtained.
This post was last edited by Refiner on 2017-11-1 19:28. Continuously reducing the volume isn’t a solution either. There must always be a point on the water cooler adjustment where no surge occurs, right?