Shutdown handling of the fractionation tower
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During the shutdown process, is it necessary to wait until the pump is emptied before introducing steam for purging in the middle-stage circulation and the top circulation?
Of course, it’s necessary to return as much of the material as possible to its original state in order to reduce waste, and at the same time minimize oil and gas leaks during the purging process. Furthermore, it’s okay with No. 1 Middle School; does Dingxun require water flushing first before purging?
To add, it is necessary to set aside time repeatedly. For the top circulation line, water must be pumped to the top first before sweeping the line!
For top circulation, it is necessary to first flush with water and then purge. . . .
Generally, a location at the outlet is found to introduce fresh water, which then pushes oil upward through the oil pipeline to the distillation tower; the oil is subsequently pumped out of the unit from the bottom of the distillation tower
On our end, we first completely empty the system, then stop the pump, heat the water, carry out a wash, drain all remaining water, and finally purge the system with steam.
So you mean that during top-loop processing, it should wait until all the side lines have been scanned before proceeding?
There’s no need for separate wiring, right? There’s already a fresh water line at the inlet of the top circulation pump; simply turn it on and start the pump to carry out the washing process.
Please check in detail the shutdown plan for your own device; it contains more detailed information there!
It seems that we have never used water for cleaning here; instead, we directly use steam for purging