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January 2011

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Subject:
From:
Bev Christian <[log in to unmask]>
Reply To:
TechNet E-Mail Forum <[log in to unmask]>, Bev Christian <[log in to unmask]>
Date:
Tue, 18 Jan 2011 14:29:49 -0500
Content-Type:
text/plain
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text/plain (277 lines)
Chad,
If you WERE pumping HCl and NaOH through your mister the answer would be a resounding "NO!".

However, what is really happening is the acid is used to turn one resin back to the H+ form and the base is used to turn another resin to the OH- form.  Then the ions you want removed take the place of the H+ and the OH-, which combine to from - water!

Bev
RIM

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Gyorke, Chad (SA-1)
Sent: Tuesday, January 18, 2011 2:21 PM
To: [log in to unmask]
Subject: Re: [TN] Deionized water in misting fans and static electricity

Does anybody know how the water becomes Deionized?

This might be an elementary question but I know somehow they recharge
our tanks using Hydrochloric acid and Sodium Hydroxide...  Is this safe
to use in a misting fan?

-----Original Message-----
From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory
Sent: Tuesday, January 18, 2011 2:09 PM
To: [log in to unmask]
Subject: Re: [TN] Deionized water in misting fans and static electricity

Just to let everyone know how this little problem I had posted about a
week
or so ago is going.

 

The DI bottles that we have on our misting system has a Resilite LED
1-megohm water monitor on them, and it just turned red the other day
(the
water is below 1-megohm now). Guess what? No more static, and no more
water
dripping from the fan cage. So I DO think that having DI water pumped
through the misting system has something to do it.

 

Steve

 

-----Original Message-----
From: Steve Gregory [mailto:[log in to unmask]] 
Sent: Wednesday, January 05, 2011 2:53 PM
To: [log in to unmask]; 'TechNet E-Mail Forum'
Subject: RE: [TN] Deionized water in misting fans and static electricity

 

It didn't last year when we ran the fans on tap water. I was up all
around
them and didn't a static shock I did this year...

 

We have a high pressure pump that pressurizes the water to around
800-1000
psi and pumps the water through about 75-ft of high-pressure plastic
tubing,
and then goes to misting rings that are zip-tied to the fan blade cover
of
the floor fans to disperse the water:

 

http://stevezeva.homestead.com/Misting_Fans.JPG

 

 

This is the second year that we've been using it. It keeps the humidity
level between 35%-40% on the shop floor. We need it during the winter.

 

Last year when used it, we had a lot of "dusting" because we were using
tap
water. This year we put a DI column on the water source.

 

How I come across the static charge is because I noticed that some water
had
begun collecting at the base of fans. I went up to check why (the fans
are
on top of our offices inside our manufacturing space). When I approached
and
touched the metal cage around the fan, I got a little "poke" from the
static. 

 

The water is puddling (I think) because it's being attracted to the
metal
fan blades and slinging off the blades to collect on the fan cage and
then
drip to the ground. The fans weren't doing this last year when we ran
them
on tap water...

 

Steve

 

-----Original Message-----

From: Robert Kondner [mailto:[log in to unmask]] 

Sent: Wednesday, January 05, 2011 2:10 PM

To: 'TechNet E-Mail Forum'; 'Steve Gregory'

Subject: RE: [TN] Deionized water in misting fans and static electricity

 

Steve<

 

DI is a heck of an insulator. I assume tap water did not do this?

 

Bob K.

 

-----Original Message-----

From: TechNet [mailto:[log in to unmask]] On Behalf Of Steve Gregory

Sent: Wednesday, January 05, 2011 1:32 PM

To: [log in to unmask]

Subject: [TN] Deionized water in misting fans and static electricity

 

This may be an off the wall question but here goes.

 

 

We have some misting fans that we use for humidification that we've just

recently put in a deionized water source for. 

 

 

Now it seems that there's a static charge being generated at the fans
that

I've never noticed before. Could it be possible that we're generating a

charge at the fans because of the DI water?

 

 

Steve

 

 

 

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