The quick-cooling hydrogen electric control valve is broken, and there is no backup circuit either – how can it be repaired?
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The rapidly cooled hydrogen electric control valve is broken, and there is no bypass line either – how can it be repaired? How should the corresponding process adjustments be made?
Control the temperature at the outlet of the heating furnace; if it cannot be controlled, the only option is to reduce the circulation rate!
Don’t your cold hydrogen valves have limit control? Different devices require different processing methods
Cold hydrogen valves are generally designed with a handwheel; they have no auxiliary wires, and the flow can be controlled using the handwheel for positioning
In reality, quenching hydrogen with rapid action doesn’t lower the reaction temperature by much; a gradual reduction in hydrogen supply is necessary, as it’s not possible to lower the temperature significantly in that way
I have a question: how can this part be cut out for his issue? There’s no alternate track
Our cold hydrogen valve also failed once; by adjusting the temperature of the reaction bed, it became unnecessary for the faulty cold hydrogen valve to use cold hydrogen, allowing us to close the upstream and downstream manual valves in order to control the flow rate
Cold hydrogen is very important for controlling the temperature of the reaction bed! It is best to have high-quality raw materials with no temperature fluctuations, and to use initial-stage control of the amount of cold hydrogen to maintain production. As for reducing temperature and volume, I’m not in favor of it; that would result in products of poor quality and it would also affect production volumes
The state after damage should be fully open, which can be controlled by the upper and lower valves on the control valve
Those in favor of the approach suggested on floor 9: if the cold hydrogen valve fails, it’s still possible to adjust the reaction temperature of the bed by controlling the inlet temperature. If that doesn’t work, the only options are to reduce the flow rate and lower the temperature, cut off the cold hydrogen supply, and replace the valve. Remember to reduce the flow rate first before lowering the temperature···
Normally, we don’t need to open the cold hydrogen valve; it is only opened when the temperature rise in the reactor bed approaches 50 degrees. Generally, the temperature rise in the reactor is around 35 degrees; the feed materials are coker diesel, catalytic diesel, and straight-run diesel from the third fractionation column, resulting in a relatively small temperature increase