Why are some of the pressure compensation lines for the tower located at the feed inlet, while others are on the reflux tank?

This post was last edited by 2001061713 on 2009-10-15 00:16. Please have the original poster confirm whether the connection lines for the feed to the dehydration tower and the stabilization tower come from the pressure-controlled circuit of the high-pressure system or from the liquid-control valve circuit of the high-pressure system. Where there is no feed connection to the tower pressure control point, the pipeline referred to by the original poster is most likely a bypass line connecting the high-pressure section to the heat exchanger in the stabilizer tower, and it is used to adjust the feed temperature of the tower. The high-pressure value during preprocessing needs to remain stable; it is usually connected to the cyclohydrogen compressor and the gas pipeline network. Connecting it to a stabilizer tower can cause significant fluctuations, which is not conducive to system stability.

It seems this issue should be consulted with the design institute.

The process is very simple. A pipeline is directly led off from the high-pressure tank roof hydrogen pipeline, equipped with a main valve (manual valve). Then this pipeline leads to the pressure supplementation lines of each tower. 1. The pressure make-up line of the pre-distillation tower is equipped with a regulator before it enters the tower, and together with the gas discharge control valve, it enables proportional control. 2. For the dehydration tower and stabilization tower, there is simply a manual valve that is attached to the feed inlet.