Cyclic hydrogen compressor

First, it is necessary to determine whether the pressure has changed and whether the flow meter is showing the correct values.

Pressure remains constant, and the flow rate is showing normally!

Interesting, are no other parameters changed?

After the repair, why does the amount of recycled hydrogen decrease? There are several reasons for the decrease in the amount of recycled hydrogen: 1. Issues with the recycled hydrogen compressor itself, such as faults in the gas flow control system, or fluctuations in the flow rate of the recycled hydrogen compressor caused by variations in steam pressure in the drive machinery, particularly the turbine ； 2. A sudden decrease in the amount of fresh hydrogen supplied; an accident occurs in the hydrogen supply unit or the fresh hydrogen generator, resulting in a reduced flow rate of fresh hydrogen, or there is a malfunction in the fresh hydrogen return valve ； 3. Failure of the cold hydrogen control valve caused a large amount of hydrogen to flow directly into the reactor bypassing the flow meter ； 4. The operation of the cyclic hydrogen desulfurization system experiences significant fluctuations, resulting in variations in flow rate ； 5. There are areas where high voltage leaks into low voltage ； 6. The internal leakage of the emergency pressure relief valve is significant, resulting in a drop in system pressure and a decrease in the flow rate of circulating hydrogen. 7. Fault in the flow monitoring instrument

Valve failure, air volume control system failure, circuit control valve

Could it be that the system pressure drop has increased, or that parameters such as the secondary oil pressure in static tests have not been properly calibrated? After all, restarting a turbine after it has stopped is similar to starting a new unit

Dude, you’re talking about the new hydrogen compressor, right?

Does this unit come equipped with a variable air volume control system? Does the compressor operate at full capacity? If it has such a variable air volume control system, then the volume can be adjusted. Additionally, there is the issue of the external environment

The amount of recycled hydrogen is primarily related to the speed of the recycled hydrogen compressor; at a constant speed, the opening degree of the valves after maintenance should be smaller than before the maintenance

Is the recycled hydrogen operating at full capacity, and is the hydrogen used in the reaction stable?