Tank Overflow Pipeline Layout
Tank Overflow Pipeline Layout
(OP)
Produced water overflow pipeline from many Tanks is routed to an Overflow Header which finally ends up in an Open Pit (for use during emergencies)in a existing Produced Water Handling Unit. Overflow pipeline from Tanks joins the header from below ground as shown in the attached simple sketch. Wish to know if this type of gravity flow piping configuration is the best design practise or it would have been better if it joins the Overflow Header from the top of pipe.





RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
Your sketch is very low on details, but from what I understand you have some lines which come off different tanks the run below ground?? before coming vertically up into a header before this header flows with gravity, so has a fall of ?1:100? to some mysterious pit.
Normally you don't flow into the bottom of a gravity header because apart from the potential to get air blockage, any dirt or items heavier than water will sink down into your connecting pipes.
However, it all depends on details such as heights, falls, distances, any dirt in the water?, things like that.
In general for pipes like this avoid sumps and syphons and try to get gradual falls in a continuous fashion and allow for some vents on the main header pipe
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
Note that if the tank is full, it will remain full and all the discharge water will go to the open pit.
Is there a pump that will allow the tank to be emptied? Where does the pump discharge?
Is there provision to allow chemicals to be put in the tank to possibly treat its contents prior to discharge?
RE: Tank Overflow Pipeline Layout
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Tank Overflow Pipeline Layout
RE: Tank Overflow Pipeline Layout
Tank 1 seems to have no vent and will fluctuate pressure based on the static head of the U bend. Not sure what the PG is on top of the tank - Pressure guage?
Tank 2, pressure in the tank is maintained at the hydrostatic level in the water trap U bend, but tying the vent line into the overflow line looks very odd
Tank 3 though seems to then operate at below atmospheric, though how the vacuum is applied is not clear as it looks like air would simply enter from the open end of the pipe going to the open pit?? All your FG blanketing just disappears down the vent line.
I think you need to draw this up properly and be a lot more open with whatever this tank farm is.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Tank Overflow Pipeline Layout