We stopped going crazy a long time ago with the same problem here in
Florida. For assembly of our precision inertial navigation instruments we
went to dry nitrogen (also built in clean-rooms). This got carried over to
eventually be used on all our assembly lines, including PWA assembly,
requiring blow-off for cleaning or drying. Nitrogen is used nearly
everywhere instead of "dry" compressed air. I've not done the economic trade
study but in the long run, the cost of nitrogen (from large LN tanks
outside) is apparently not worse than the cost and maintenance of
compressors, driers and cost of dealing with potentially contaminated
product. We don't have much automated equipment that uses a high volume but
most all small valves and pneumatic solenoids use dry nitrogen from the same
source. I'm glad I don't have to be concerned with water or moisture
problems.
R. G. Blomberg
Honeywell - Space Systems
Staff Production Engineer
(727) 539-5534 voice
727-539-4469 Fax
[log in to unmask]
-----Original Message-----
From: Stephen R. Gregory [mailto:[log in to unmask]]
Sent: Friday, April 20, 2001 11:31 PM
To: [log in to unmask]
Subject: [TN] Compressed Air...
Hi All,
I've become involved with our facility compressed air. We seem (in my
opinion) to have an excessive amount of moisture in our air lines. There is
an air dryer installed downstream from the compressor, but the water traps
that are installed at various locations on the production floor need to be
drained regularly (sometimes daily).
My take on this is that the air drier that we have either isn't functioning
properly, or that it doesn't have the capacity that we need for the demand
of
air that we require.
I'm being told by our "Plant Engineer" that there isn't anything out there
that will eliminate the moisture from our compressed air lines, he says
we're
always going to have water in our compressed air lines...I beg to differ
with
his opinion.
Would any of you please post something that says that it is possible to have
clean, dry, compressed air on your production floor? This is air that is
supplied for our automation, and everything else.....
I know that this is possible, I've worked at too many other companies where
one of the last things I had to worry about was the quality of our
compressed
air, but I have a new challenge now...I see water in the traps throughout
the
production floor every single day that need to be drained daily (and other
things that I don't want to get into), but yet I'm told our air drier is
functioning properly, and that it just doesn't get any better....that it's
just physics.
I'm about to go crazy...please help me.
-Steve Gregory-
----------------------------------------------------------------------------
-----
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET
Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases >
E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700
ext.5315
----------------------------------------------------------------------------
-----
---------------------------------------------------------------------------------
Technet Mail List provided as a free service by IPC using LISTSERV 1.8d
To unsubscribe, send a message to [log in to unmask] with following text in
the BODY (NOT the subject field): SIGNOFF Technet
To temporarily halt delivery of Technet send the following message: SET Technet NOMAIL
Search previous postings at: www.ipc.org > On-Line Resources & Databases > E-mail Archives
Please visit IPC web site (http://www.ipc.org/html/forum.htm) for additional
information, or contact Keach Sasamori at [log in to unmask] or 847-509-9700 ext.5315
---------------------------------------------------------------------------------
|
