The significance of opening and closing the valve on the pipeline from the bottom of the tower to the dirty nitrogen pipeline in the internal compression process, or the purpose of installing such a pipeline
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What is the purpose of installing valves from the bottom of the tower to the dirty nitrogen pipeline in the internal compression process, or what is the aim of having such a pipeline? How should it be operated? The yellow pipeline in the diagram is the waste nitrogen pipeline
Oxygen is vented, allowing for some adjustment of the argon fraction~~
Can this pipeline be mainly used to adjust the argon fraction?
Can this pipeline be mainly used to adjust the argon fraction?
Its main function is to regulate the argon fraction~~
Adjust the argon fraction: when this valve is opened, the rising gas decreases, the argon-rich zone moves downward, and the argon fraction increases.
Let’s use a slightly larger diagram instead. I am also familiar with the internal compression process, and my understanding is roughly as follows: during hot startup, the pressure in the upper tower is high; this section of pipeline was added to reduce that pressure. Since the tower temperature is high at the beginning of operation due to heat, the pressure in the lower tower is high; to reduce this pressure, it is necessary to use the liquid-air throttle valve, and at that time the throttle valve must be fully open. When the pressure in the upper tower is high as well, the only way to reduce it is through the pipes you mentioned. Therefore, pay attention to how experienced operators handle this during startup – that will help you understand better. Due to incomplete drawings, the analysis may inevitably be imperfect