I would like to ask everyone about issues related to the crude argon tower
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In the crude argon tower, should the argon pump be started first and then liquid air as the cooling medium be fed into the crude argon condenser, or should the cooling medium be fed in first before starting the argon pump?
It must first be introduced into the cold source; liquid accumulates there, and only once there is liquid can the argon pump be started.
During hot-starting of the unit, it is necessary to first activate the cooling source in order to establish distillation and liquid level; thereafter, the argon pump is started. However, during cold-starting, if there is already a liquid level present, it is also possible to start the argon pump first. At low temperatures, the liquid level can become extremely high
Thank you for your answer; I hadn’t considered the issue of hot and cold states
Thank you for your answer; I hadn’t considered the issue of hot and cold states
If your argon pump is suitable and capable of achieving full reflux, then you can gradually introduce crude argon without having to worry about a lack of liquid in the second tower or damage to the purity of the liquid oxygen in the main cooler. However, it is still recommended to wait until the argon fraction reaches 60–70% of the normal level, and until the level in the second tower is high enough, before starting the argon pump, in order to avoid cavitation~~