SNiko9
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Posts: 5
Registered: 22-9-2011
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PUMP
which pump you use to drive the water through the condenser, and how the pump using a vacuum filtration? я видел
в роликах по интернету
когда используют насос
для вакуумного
фильтрования, а также
для конденсара. насос
кладут в ведро с ледяной
водой и пускают в
конденсатор. что это за
насос?
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SNiko9
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PUMP
I've seen in the trailers on the internet when using the pump for vacuum filtration, as well as kondensara. pump is placed in a bucket of ice water
and let the condenser. What kind of pump?
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peach
Bon Vivant
Posts: 1428
Registered: 14-11-2008
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The smallest Hozelock garden fountain pump for the condenser. As you can see, I've expertly jammed a hose barb where the fountain head is supposed to
go. The pump is now about ?2 decades? old and must have a million miles on the clock, but it still works and has never not worked.
Something that is bad about it is the noise. Even new, these things make a buzzing / rattling noise. It's not loud, but it gets
seriously tedious if I have to sit listening to it for hours at a time. The only other annoyance is descumming the water, which tends to go manky over
time. I've tried bleach in there, didn't work so well. I just sprinkle some iodine in there now.
This is something I've been meaning to sort out for ages. It needs longer hoses on it, and a lid, so I don't have to listen to it.
A fridge compressor, tap aspirator or cheap diaphragm pump (auto-mobile?) will do for vacuum filtration. There's no point using high vacuum for that
and it'll accelerate the rate at which the high vacuum is ruined.
[Edited on 28-3-2012 by peach]
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SNiko9
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Thank you very much! And can i use an aquarium filter? I think he will be able to drive the water in the condenser
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peach
Bon Vivant
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Never kept fish myself, but I expect that'd work. It only needs a small amount of pressure and flow.
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Bot0nist
International Hazard
Posts: 1559
Registered: 15-2-2011
Location: Right behind you.
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Mood: Streching my cotyledons.
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A ten gallon fish tank filter pump will work, but the reservoir of water has the be higher than the condenser, or flow rate and thermal dissipation
will suffer. Fill the condenser from bottom to top, of course, so it fills up and doesn't just trickle down the jacket.
U.T.F.S.E. and learn the joys of autodidacticism!
Don't judge each day only by the harvest you reap, but also by the seeds you sow.
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Hexavalent
International Hazard
Posts: 1564
Registered: 29-12-2011
Location: Wales, UK
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I use a similar pump to Peach for filling condensers, although I change the water every time to minimise the storage space required for the equipment.
My pump also has an adjustable flowrate to suit different columns. Some of those re-useable cold packs are also kept permanently in the freezer and
are tossed into the tap water in the bucket every time to chill the condenser further. I use some 11mm aquarium PVC? hoses for the connections as they
fit both the pump output and the barbs on my condenser perfectly.
Here it is for sale on eBay (the same exact model) - http://www.ebay.co.uk/itm/Newa-Micra-Jet-Pond-Water-Feature-...
Personally, the technician at my school recently gave me a small metal aspirator for vacuum filtrations. In the two weeks of owning it, I've managed
to lose the thing somewhere . . .
I do however have a proper vacuum pump; i got a cheapo tire inflator from HomeBargains, took of the casing and simply attached a length of hose,
secured with Superglue, to the small import valve on the piston system. I drilled a hole on the top of the casing to pass the hose through, et voila,
a fully functioning pump that behaves admirably for simple vacuum filtrations. The insides will wear out eventually, of course, but at £3.99 a shot
it ain't gunner cost me a lot to replace. The internal motor is usually cooled by the rush of air going over it, so, I installed a second motor inside
the casing and connected it up to the main system power line with a resistor. This main line used to be attached to a cigarette lighter adapdter, but,
being in the lab, I cut it off and replaced it with some crocodile clips, which connect nicely into my adjustable lab bench power supply that I
originally bought for electrolysis etc.
"Success is going from failure to failure without loss of enthusiasm." Winston Churchill
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