What is the function of the inverted U-shaped tube in the deep vacuum degassing reflux tank?
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What is the function of the inverted U-shaped tube in the deep vacuum distillation reflux tank, and when is it used?
To determine whether there is a liquid seal effect, it would be helpful to include a schematic diagram or image for easier discussion and reference.
1. The vacuum distillation tower does not have a reflux drum; it only has a top removal drum； 2. The inverted U-shaped bend is used to maintain the water level in the pressure relief tank and ensure the water seal in the atmospheric leg ；