Pump System for filling/unloading tank

[cleng07]

Considering change to pump coal spray (fuel oil) to/from 20k gal vertical cone bottom ASME liquid storage tank. I want to utilize existing pump and decant line coming off side of tank just above cone. Besides controls, line size, pump capacity, etc., are there any specific issues I should address regarding utilizing the same line to fill & pull from tank? (Specific issues that should be addressed in early design, prior to PHA.)

 

[MJCronin]

clang,

Your question is way too vague considering the amount of information you provide.

- What was the Pump liquid duty originally ?

- Specifically what type of pump is being reused ?

- What is the NPSHr of the pump for the new liquid conditions ?

etc etc etc....

Again we now begin the long, slow process of extracting information from the original poster.

 

[cleng07]

MJCronin:

I apologize for the confusion, but I am not asking for how to size the pump or the line or the system. I can provide you all of this information, but I am capable of performing that analysis myself. My question is are there other issues (perhaps operational or inlet nozzle design) that I should consider before jumping to the idea that one single line can be used as both a feed and a draw line (of course, not simultaneously). Thank you.

 

[cleng07]

See attached