D.I. water in small steam boilers
D.I. water in small steam boilers
(OP)
Are there any precautions to take in using D.I. water in small steam boielrs?
(High pressure boilers 100 - 500 psi 10 - 30 HP)
genb
(High pressure boilers 100 - 500 psi 10 - 30 HP)
genb





RE: D.I. water in small steam boilers
this is rule of thumb as I know it.
RE: D.I. water in small steam boilers
These are standard steam boilers/generators out of C/S
not SS, I found out that it is possible to use them on DI water with chemical treatment, not what's the treatment.
Then I may have to talk to the chemists!
Regards, genb
RE: D.I. water in small steam boilers
For water treatment chemicals I would look to someone who specializes in water treatment like GE(Betz) or Nalco.
http:/
http://www.nalco.com/ASP/index.asp
RE: D.I. water in small steam boilers
One is a 40hp and the other is a 150hp. They run on D.I. water to reduce the amount of blowdown water. They run a Nalco treatment package. So it can be done. It is more expensive than softening the water but in this case it is offset because I don't have a cheap place to dispose of my blowdown water.
We have not seen pitting in the boiler due to the D.I water.
Regards
StoneCold
RE: D.I. water in small steam boilers
I will contact NALCO for advise,
Thank you very much to my good advisors,
this will be of great advance in my business,
GeeneralBoiler GenB
RE: D.I. water in small steam boilers
RE: D.I. water in small steam boilers
Good point that I did not mention. We recover better than 90% of our condensate. We also add our makeup chemicals right with the makeup water in the boiler feed tank. So we are putting say three gallons of D.I. water into a 100 gallon tank of condensate and conditioning chemicals. We have not seen any problems with the feed tank and it is 15+ years old. But our situation would be considerably different if we were loosing a lot of our condensate and making up with strictly D.I. water. That would be bad.
Regards
StoneCold
RE: D.I. water in small steam boilers
RE: D.I. water in small steam boilers
RE: D.I. water in small steam boilers
RE: D.I. water in small steam boilers
Do you have know the brand/type of probe control are you using?
I always use floats on my small SS steam generators,
I can never make them work with probes.
CaptainKvar I use soft water and probes on 1000psi boilers/steam generators, I have not had any problems on conductivity.
genb
RE: D.I. water in small steam boilers
I didn't mean you would have a problem with conductivity,
it just that water chemistry/treatment is more critical at higher steam pressures and demineralizers are nessary.
CaptainKvar