Urgent! Urgent! Urgent! ! ! Solutions for the abnormal level of the liquefied hydrogen reflux tank in the catalytic stabilization unit! ! !

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Recently, it was observed that the level in the liquefied hydrogen return tank (V1303) was rising abnormally, increasing in spurts. On-site verification confirmed that the liquid level and interface level of the oil-gas separator (V1302) at the compressor outlet are both normal ； The circulating water pressure in the heat exchanger is around 0.4–0.5 MPa, which is relatively low ； The reboiler at the bottom of the distillation column is heated using steam at 1.0 MPa, which is significantly lower than the feed pressure of the stabilizer column ； The stabilizer bottom reboiler is used for distilling the middle fraction of oil; the pressure at the outlet of the pump associated with this distillation process is around 0.7 MPa, so leakage is not possible. At the same time, both the on-site level and liquid level of V1303 are accurate; when the DCS-level transmission value increases, the on-site glass gauge also rises accordingly. Which expert in this field could offer some guidance? I’m really urgent – waiting online! ! !