What should be done if the catalytic purified air supply is interrupted?
Thread Content
What should be done if the purified air supply to the catalytic workshop is interrupted?
In the event of a long-term interruption, cut off the feed to the reaction reactors to maintain fluidization; operate the distillation system in circulation mode, and keep the absorption and stabilization towers in circulation to maintain pressure and liquid level, ensuring that all parameters remain within the specified ranges.
If the catalytic purified air supply is interrupted, it should be possible to use some unpurified air in order to maintain operation; of course, the important control valves must be addressed first to prevent automatic activation due to the interruption in air supply. If there is a prolonged shutdown of airflow, it is necessary to consider treating it as an emergency shutdown. It is also necessary to check whether the non-purified air flow has stopped as well; if so, it should be treated as a shutdown situation. However, the control valves on site still need to be dealt with first.
The single purification stop air can be replaced by non-purification air; at the same time, attention should be paid to the effect of water in the non-purification air on the control valves； If it has to stop at the same time, then an emergency shutdown needs to be considered
Generally, there is a connection line between the drive air and the instrument air; just open it! But it is generally connected in front of the filter before entering the instrument air tank!
Nitrogen, unpurified air – it can be connected if there is a connection line available. However, usually when the purified air is in use, everything else is also shut down; considering shutting down operations and taking cover might be a good option
In other words, the control valve is the first thing that needs to be dealt with, right?
Generally, pressure changes can be observed when the wind pressure drops to around (0.4 Mpa), which is the level at which the control valve starts to operate automatically. At this point, it is possible to open the connection line or take other measures; however, for important control valves, it is necessary to have someone on hand to operate them.