6 replies to this topic

[Root]

Hi Al's,

Booster pumps mainly used for higher head requirement, especially on hydrocarbon pumping purpose but why not for water?
Any one can explain about this theory why long transmission line need booster pump?

Thanks

Toor

[JoeWong]

Toor,

A fluid is pumped / compressed from low pressure to high pressure for transmission. A pump or compressor may be used. Booster will be used for at least two reasons :

(i) To overcome limitation of main equipment. One of the typical application is Water injection. Main pump with high flow and high head, the NPSHr is high and NPSHa provided by the static head is insufficient. A simple booster pump with low NPSHr is required to provide the sufficient NPSHa.

(ii) Condition change lead to inefficient operation of existing machine. Typical example is gas plant. The gas supply pressure is high at initial plant life and depleted through out the year. It may decrease the efficiency of compression system. Thus a booster compressor is installed to main the pressure.

Back to your question.
"Booster pumps mainly used for higher head requirement, especially on hydrocarbon pumping purpose but why not for water?"

The requirement is normally come from the limitation of the pump and not the fluid itself. In many event, water injection pump required a booster pump.

[Rudra]

I think booster pumps can also be used for water service if the higher head is required.
And by transmission line, do you mean pipelines? if yes, then Booster pump is installed to accomodate higher pressure requirement of downstream equipements and pipelines.

Please anyone correct me if i am wrong.

[Qalander (Chem)]

Hi Al's,

Booster pumps mainly used for higher head requirement, especially on hydrocarbon pumping purpose but why not for water?
Any one can explain about this theory why long transmission line need booster pump?

Thanks

Toor

Dear Toor,

I don't know any reasons,prohibition for water service usage.

[Root]

I think booster pumps can also be used for water service if the higher head is required.
And by transmission line, do you mean pipelines? if yes, then Booster pump is installed to accommodate higher pressure requirement of downstream equipments and pipelines.

Please anyone correct me if i am wrong.

Hello Dear,

No one talking about vapor pressure and vapor locking (cavitation) while in water services there is no Chance of vapor locking.
Please if any one explain further on this question highly appreciated.
Thanks

[Qalander (Chem)]

I think booster pumps can also be used for water service if the higher head is required.
And by transmission line, do you mean pipelines? if yes, then Booster pump is installed to accommodate higher pressure requirement of downstream equipments and pipelines.

Please anyone correct me if i am wrong.

Hello Dear,

No one talking about vapor pressure and vapor locking (cavitation) while in water services there is no Chance of vapor locking.
Please if any one explain further on this question highly appreciated.
Thanks

Dear Toor, Sorry but your OP or subsequent posts have no mention of critical pumping temperatures above pumped liquid B.P.

But still I assume that even at or Near B.P. the system may be kept liquid;under exerted pressure and maintaining sufficient NPSHa above NPSHr at operating range.
Hope this helps.

[Padmakar Katre]

I think booster pumps can also be used for water service if the higher head is required.
And by transmission line, do you mean pipelines? if yes, then Booster pump is installed to accommodate higher pressure requirement of downstream equipments and pipelines.

Please anyone correct me if i am wrong.

Hello Dear,

No one talking about vapor pressure and vapor locking (cavitation) while in water services there is no Chance of vapor locking.
Please if any one explain further on this question highly appreciated.
Thanks

Dear Toor, Sorry but your OP or subsequent posts have no mention of critical pumping temperatures above pumped liquid B.P.

But still I assume that even at or Near B.P. the system may be kept liquid;under exerted pressure and maintaining sufficient NPSHa above NPSHr at operating range.
Hope this helps.

It's the only liquid head which will keep the fluid into liquid phase and not any external exerted pressure (?) as the vapor pressure at bubble point or of staurated liquid is equals the system pressure. I hope its quite basic.