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CHAUDHARI
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Join Date: Sep 2008
Posts: 3

canned pumps

10/06/2008 1:45 AM

We want to take cooling water for our 120 MW hydro machines in an underground power station (high head) from the draft tubes. The approximate requirement of water shall be 250 litres per second and pressure at pump outlet shall be about 6 kg/sq. cm. Are canned pumps for this capacity available? We wish you utilise these cooling water pumps for dewatering also. Any suggestions ?
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dkwarner
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Location: Placerville, CA (38° 45N, 120° 47'W)
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#1

Re: canned pumps

10/06/2008 11:11 PM

Why use a pump at all? You already have huge amounts of water available under considerable pressure. Use Venturi for dewatering.

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PWSlack
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United Kingdom - Member - Indeterminate Engineering Fields - Control Engineering - New Member

Join Date: Jan 2007
Location: In the bothy, 7 chains down the line from Dodman's Lane level crossing, in the nation formerly known as Great Britain. Kettle's on.
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#2
In reply to #1

Re: canned pumps

10/08/2008 4:46 AM

Exactly. There's up to a further 1/7 of a megawatt to extract from the cooling water stream. Back-pressure turbines, anyone?

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