High flow drain forwarding pump

[killakella]

Hello,

I am trying to find an in-line solution for forwarding high flow (~20,000 GPM) process water gravity drains. We are retrofitting a plant and our design so far has been to reroute the drains to an interceptor pit and intall vertical turbine pumps for forwarding the water. However, space is very limited so I am exploring other options.

Since it is a gravity drain system the pipe would not be completely full. I am envisioning an Archimedes screw to grab the water but I'm not sure how the flow could transition from a partial filled line to a fully filled and pressurized line.

Is there a type of pump for this application?

 

[BigInch]

Build the screw or "propeller" inside a pipe.

The Corps of Engineers has been using these types of pumps to pump through levees for years. Here's an old one,

http://www.loyno.edu/history/journa...StudyoftheDrainageDevelopmentofNewOrleans.pdf

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[Artisi]

BigInch / killakella the "Woodscrewpump" won't work pumping against a closed pressurised pipeline. Best bet looks like a collection pit and vertical turbine or electric submersible pumps - check ITT Flygt for submersibles.

 

[BigInch]

Its not really what I'd call pressurized either, just a lift of a few feet over the fluid level on the other side of the levee.

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[killakella]

Thanks for the replies.

The concept used by the Corps of Engineers in the document you referenced is similar to what I was thinking, but in that instance they are using it to draw water out of one reservoir and siphon into another reservoir. In my application the water is draining through a pipe and would need to be pumped essentially uphill, i.e. against a closed pressurized pipeline.

Like I mentioned, a collection pit is our current design but space is likely too limited for it to work, we really need a way to forward the flow directly in the pipeline.

 

[BigInch]

OK, you were the one that mentioned a screw type pump. I just thought I'd try to help you visualize it.

I'd go with Artisi's submersible idea myself.

**********************
"Pumping accounts for 20% of the world’s energy used by electric motors and 25-50% of the total electrical energy usage in certain industrial facilities."-DOE statistic (Note: Make that 99% for pipeline companies)

http://virtualpipeline.spaces.live.com/

 

[Artisi]

If you wanted to use an Archimedes screw pump which you could, you would need to pump to a higher level so that the pumped flow could then gravitate to the discharge point.