Windmill Screw Pumps
How to design a screw pump?
I am working on the redesign of a windmill water pump, trying a different design that doesn't stress the structure so much.
For that I intend to use a screw pump instead of a piston pump, but the problem is that none of the main manufacturers makes a pump like the one I need. So I need to design one myself. However, I am not sure of how to design a screw pump.
Can you help me?
The Archimedes screw isn't suitable in this case as the water is 30 metres deep. I need a modern screw pump.
Check this example:
http://www.engineersedge.com/pumps/screw_type_pump.htm
However, I need a design that sucks the water from one end of the screw (the bottom of the well) and pump it to the other (up to the surface)
The screw is a pain to make. There is a version of the Acrchimedian screw pump called a Wirtz pump. I have made this type and it was very easy. See the link below.
All you need is a hose. You can also wrap the hose around an inclined shaft and turn the shaft. I have seen folks use the flow of a river to turn the shaft for both verisons of this pump.
SavoniusRotorAndHorizontalScrewPump.mp4
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