Designing a Venturi

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Dean@FedEx Participant Join Date: Feb 2008 Posts: 1	Designing a Venturi 02/05/2008 6:16 AM
	I am looking for a way to design and fabricate a venturi unit to use for presurizing a liquid dispensing syetem. I have in the past fabricated Positive Pressure air vacuums, which have a small spool inside an outer pressurized casing.. I would like to have the air do all the work to blow thru and atomize if you will, the liquid that is being pulled through a tube from a larger container. The air pressure would be exiting several sets of precision air blasts, at which point I would like the liquid to exit as well. I have looked for drawings online and have only found the Wikipedia drawing explaining Burnelli's Law. The fabrication is no problem at all, I would just like to find a nice set of prints, it makes it a little easier than just hogging one out of a peice of round stock..Thx alot and thx for letting me in the site,, I hope to use this site for alot of questions and theories I have..Dean
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JohnDG Guru Join Date: May 2006 Location: Reading, Berkshire, UK. Going under cover. Posts: 9684 Good Answers: 468	#1 Re: Designing a Venturi 02/05/2008 7:05 AM
	This is a link to a nice interactive demonstration that you should be able to use as the basis of a design. __________________ "Love justice, you who rule the world" - Dante Alighieri
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PWSlack Guru 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. Posts: 32175 Good Answers: 839	#2 Re: Designing a Venturi 02/05/2008 7:47 AM
	<....I am looking for a way to design and fabricate a venturi unit to use for presurizing a liquid dispensing syetem. I have in the past fabricated Positive Pressure air vacuums, which have a small spool inside an outer pressurized casing.. I would like to have the air do all the work to blow thru and atomize if you will, the liquid that is being pulled through a tube from a larger container.....> Sort-of-like an airbrush, for example? __________________ "Did you get my e-mail?" - "The biggest problem in communication is the illusion that it has taken place" - George Bernard Shaw, 1856
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Anonymous Poster	#6 In reply to #2 Re: Designing a Venturi 02/05/2008 10:17 PM
	Yes sorta like that. I will be spraying a concentrated cleaner on a rotating brush. I don't want the cleaner to just drip or run out, thus not covering the surface of the unit. I have installed atomizing air nozzles so the cleaner will come out in a spray form..
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Electroman Guru Join Date: Jul 2006 Location: Dunstable, England Posts: 2821 Good Answers: 45	#3 Re: Designing a Venturi 02/05/2008 9:00 AM
	Or a perfume spray pump action?? __________________ A little knowledge is a dangerous thing - Googling is far worse!
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CSM Engineer Guru Join Date: Sep 2007 Location: Reno, NV (USA) Posts: 608 Good Answers: 66	#4 Re: Designing a Venturi 02/05/2008 12:20 PM
	Or something like this guy...? Not sure what kind of throughput you're after, but perhaps you could scale it up... __________________ Aequam memento rebus in arduis servare mentem.
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user-deleted-1105 Guru Join Date: May 2007 Location: Harlow England Posts: 16512 Good Answers: 670	#5 Re: Designing a Venturi 02/05/2008 3:31 PM
	There have been quite a few venturi threads recently... search the site for venturi. Del __________________ health warning: These posts may contain traces of nut.
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FKIA Power-User Join Date: Jul 2007 Location: Somewhere in the hills of Pennsylvania, I think. Posts: 246 Good Answers: 4	#7 Re: Designing a Venturi 02/06/2008 2:11 PM
	If it were my money being spent, I would use the available air to operate a diaphram pump and pump the liquid cleaner to a "Tee-Jet" spray nozzle. __________________ I'm somewhere between the age of thirty-something and Alzheimer's. I just can't remember where!
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Anonymous Poster (1); CSM Engineer (1); Electroman (1); FKIA (1); JohnDG (1); PWSlack (1); user-deleted-1105 (1)

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