5 replies to this topic

[Samin]

Dear all,

 

does anyone have any experience about the correct inlet nozzle location of  tank for high viscose operation and services?

 

the viscosity of the case in which i need your knowledge and experience is 72 cP @ 100 °C.

 

am i obliged to consider inlet nozzle at high level or low level is also possible and acceptable?

 

Thank you

Samin

[fallah]

Samin,

 

The tank you described is more probable equipped with internal heating coil which is normally located in lower half of the tank. If so, it's better to consider the inlet nozzle at lower part of the tank which to be closer to the heating coil...

[Zauberberg]

For storage tanks in non-flashing liquid service I have seen inlet nozzle located usually close to the tank bottom. This also helps avoiding static charge (otherwise you would need to extend the inlet pipe into the liquid phase inside the tank), and it eliminates higher head requirement for the upstream pump as well. Dragging the inlet pipe all the way up to the tank requires multiple pipe supports, which complicates things further.

[Zauberberg]

Also see attached schematics for fixed roof storage tanks.

 

Attached Files

•  090701.pdf   21.6KB   39 downloads

[Samin]

dears

thank you for your guidance,

heating coils are considered for this tank ,

do we call this kind of heaters as suction heaters?

again tank you and regards

[fallah]

Samin,

 

Even though a heating coil inside a tank lowers the fluid viscosity to be easily pumped out, i don't think it can be called suction heater...