compressed air moisture
compressed air moisture
(OP)
hello -
I have a new ac system to operate that is old as them dar hills.
I have noticed that a seemingly large amount of water/moisture collect in a dischagre storage bottle.
The HP is 25 hp, so it is on hte medium size.
What features can I look at on reducing thee amount of moisture into the system?
Are there product to place on the suction side that can assist in drying the incoming air?
I have a new ac system to operate that is old as them dar hills.
I have noticed that a seemingly large amount of water/moisture collect in a dischagre storage bottle.
The HP is 25 hp, so it is on hte medium size.
What features can I look at on reducing thee amount of moisture into the system?
Are there product to place on the suction side that can assist in drying the incoming air?





RE: compressed air moisture
Air can hold less moisture at high pressures and that is why it is easy to dry the air at higher pressures. If you see good amounts of condensate collected in the receiver, your air is becoming more dryer. Put a trap to the drain line so that you can remove the condensate. Get the CA analyzed for dryness. If your application requires more dryness, go for a dryer.
RE: compressed air moisture
The air outside has more humidity
You are moving more air
You are operating at a higher pressure
You are cooling the air after you compress it more.
The last two items are how you get as much water out as possible without a dryer.
RE: compressed air moisture
I've wondered if it would help to let the compressor inhale from an air conditioned space. Would that be a code violation?
Mike Halloran
Pembroke Pines, FL, USA
RE: compressed air moisture
It should certainly help.
I guess the flow from any ordinary air compressor shouldn't work the A/C system too hard.
Cheers
Jay
Jay Maechtlen
http://home.covad.net/~jmaechtlen/
RE: compressed air moisture
RE: compressed air moisture
Billgas, old or new, they all 'make' water. It's pretty easy to install an electrical water drain on the reciever that will automatically drain the water at preset intervals. It's also relatively easy to install a water trap, even an automatic one, in the discharge line, preferably closest to the work station. Finally, the only really positive method is to use a refrigerated dryer. A 25hp ac will need a dryer commensurate with the airflow rate. You can even find rebuilt dryers if you look. Most pro paint shops have all these items installed. Google up some of the AC companies. Their sites have some very insightfull info.
Rod
RE: compressed air moisture
RE: compressed air moisture
Again, the only truly cost effective method of H2O removal is the refrigerated dryer.
Rod
RE: compressed air moisture
Mike Halloran
Pembroke Pines, FL, USA
RE: compressed air moisture
RE: compressed air moisture
RE: compressed air moisture
The story as best I can gather is that shortly after installation, in the midst of summer, someone forgot to maintain the system. Since its demise, we have used traps at outlets and drains anywhere we put a drop. Operators ar responsible for daily maintenance in their work area and checking supply when starting air fed machines that have been sitting more than a day or so. Not perfect but it works.
Moral: if you are going to use dessicant make certain you have the discipline needed during times of increased risk.
Just my 20 mils.
Griffy
RE: compressed air moisture
RE: compressed air moisture
Werther International comes to mind.
RE: compressed air moisture
Operational economy is with refrigerated types upto -250C atmospheric dew point. Beyond that one should go for either alumina(generally -40) or zeolite molecular sieve(upto -70) PSA systems. Oil is detrimental to PSA systems. These systems come with a 5 micron filter to take care of the fines released into the air (if not default supply then it should be recommended)
RE: compressed air moisture
"Do not worry about your problems with mathematics, I assure you mine are far greater."
Albert Einstein
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