Regarding the problem of the bubble pump after Air Liquide removes the upper tower throttle valve
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Have you ever seen what this QP1 is? The manufacturer says it is a bubble pump, what does it do? How does it work?
I have been engaged in air separation for many years and have been exposed to both internal and external compression, but I have never seen such a device. It is strange. Waiting for the master to answer
The function of the bubble valve is to generate negative pressure through the jet, allowing the night sky to be smoothly sent to the upper tower, which plays a stabilizing role.