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Posted by Brian Rei on January 28, 2002 at 20:19:42:
In Reply to: Re: Corrosion in Deaerator & Feed Tank posted by Tony Conner on January 25, 2002 at 06:45:29:
Don't quote me directly on this. But I think it may help you a little.
If possible, have a heating element directly into the DA. I.E. have a R-stamp welder come in and pipe a steam line into the DA, and down towards the center, and blow steam to bring the temp.
Pipe a recirculation line. From the bottom of the D.A. to the top. Probably won't help the temp to much, but if the plant closes friday and monday you have 60º F.W. you need to bring that up. Steam from top mingles with surface, eventually you'll heta it up to an extent.
Last idea I can think, not sure if the best though. Have a steam line piped to an open if any, inlet on the bottom of the tank. Make sure steam is from a steam source, not top of DA.. that'll just be a closed eye glass. Hot water will rise, cold water sink. It'll sound like a bunch of cats in a bag =]
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