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Regarding the issue of low-pressure reflux refrigerant in the cold box, I would appreciate everyone’s **guidance**

2017-11-13View Original

Thread Content

On the PID diagram of the integrated cryogenic tank, the liquid refrigerant passes through a throttle valve, where its pressure is reduced; after that it enters the gas-liquid separator and then flows into the same flow channel. So here’s the question: since the fluid enters the same flow channel after passing through the gas-liquid separator, why is this separator needed at all? What is the function of this gas-liquid separator?
Reply #22017-11-14
**Could you explain it? I’m waiting online urgently
Reply #32017-11-14
I searched on the website for a long time; my understanding is that it helps with the distribution of gas and liquid – the liquid phase separated out is carried to various temperature gradients through the gas phase, where it then vaporizes. What do you all think?
Reply #42017-11-15
The gas and liquid are separated first; after separation, the two phases become uniform. Then, the gas phase pushes the liquid phase into the various flow channels of the porous fin structure, which prevents inertial deflection and improves heat exchange efficiency.
Reply #52017-11-23
The most important point is that during the isobaric cooling process following isentropic compression, liquid condensate forms. Thermal calculations show that liquid will precipitate whenever there is cooling after compression; this liquid can be used separately or combined and fed into the cold box all at once. The specific location within the plate-fin heat exchanger where this process takes place depends on the process conditions.
Reply #62017-11-30
Although they enter the same flow channel after gas-liquid separation, they enter at different positions within that flow channel

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