| andre_54005@yahoo.com 2005-09-22, 11:21 am |
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Anthony Matonak wrote:
>
> I've heard some folks have managed to suck water up more than 33 feet
> using some kind of pulse pumping to change the water into a kind of
> foam. It's still the same amount of water as would fill a 33 foot
> vertical pipe but it occupies more than 33 vertical feet because of
> all the bubbles. I'm not at all sure how practical this is.
>
> Anthony
If you were to start with atmospheric pressure or even better enough
positive pressure in the "suction" pipe to push the water down to the
inlet. And then rapidly pulled a vacuum on it, the water would be
accelerated up the pipe, it would then continue under inertia up past
the 33' mark or whatever the local suction limit is. Where a small
portion could be diverted off by some kind of check valve arrangement.
The cycle would then have to be repeated to get another small shot of
water.
It would work but I do not believe it would be in any way an efficient
way to pump water.
I think what you are talking about is known as a bubble pump. Used by
well drillers all over the place. Drill the well, leave the drill
string down the hole and blow air down the string. The expanding air
bubbles lift large volumes of water up between the well casing and the
drill string. Let it run until satisfied you have a good well, if not
drill deeper.
___________
Andre' B.
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