Initial water flushing of the fractionation system
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The original distillation system was washed with water. I would like to ask whether the vent lines at the top of the towers and tanks are also washed with water after the tanks are filled with water
It is best to understand what the objectives of water flushing are, the physical and chemical properties of the medium that will come into contact with it, as well as the safety requirements regarding the equipment. It is best to understand it from a theoretical perspective, for reference only.
Not necessarily; as long as it’s not dirty, that’s fine. And it’s not necessary to fill it with water either. Isn’t it inconvenient to use just a hose?
Generally, the vapor lines at the top of the tower and the vent lines at the top of the tank are flushed during the pressurization process. By \"water flushing,\" do you mean water testing? Water-cooled heat transfer does not involve gas-phase lines such as those at the top of a tower
The pipeline that is washed with water can be flushed while under pressure. During the water-based testing, water is used in place of oil to initiate the process earlier. If there is a leak due to poor sealing in some area, it’s not a big problem; after all, it’s safer if water leaks rather than oil
It’s not necessary. The purpose of water flushing is to remove impurities from the pipeline, carrying them away with the rapid flow of water. There is no need to purge the line at the top of the tower; firstly, because the pipelines are welded differently from those at the bottom, and secondly, as water rises, impurities that are heavier than water settle in the air coolers and heat exchangers. This is completely unnecessary and even has a negative effect.