[Steam-engine] Wachs boiler update
Richard Strobel
Richard_Strobel7 at msn.com
Thu Oct 20 06:54:03 PDT 2005
Jim..see replies inserted below.
Rick
> Hi Rick!
> Actually, removing the tubes from a boiler that is undocumented and
> has
> been sitting a while is not
> all that uncommon. We have had the inspector ask us to do so on two
> different upright boilers at the
> museum. On the first one, there were no leaks during hydro, he just wanted
> to see the water line area
> of the shell. The second one needed tubes anyways. It is a little work,
> but
> not that big of a deal, to
> re-tube one of these.
> From your posts, I have surmised that you may have a "submerged top
> flue sheet" type of boiler,
> where the water is carried above the top flue sheet. If this is correct,
> rolling the top of the flues is a
> little tricky if the inner wall of the top section "cones in" as it
> approaches the top of the boiler, but it
> still should not be a big problem.
The top flue sheet looks identical to this bottom sheet..minus the fusible
link: So I would swag it's not submerged..dunno
http://community.webshots.com/photo/188300547/481544673hiRzcH
Get your boiler inspector involved now,
> find out what he wants, and
> do it. You don't want to get this thing all fixed up and find out he won't
> pass it because he has doubts
> about it's condition. Give him every opportunity to get to know the
> boiler,
> it will improve your chances
> if it's steamworthy. With the tubes out, you will be able to see what's up
> with that bottom flue sheet,
LOL..funny you should mention that Jim...I was just googling Montana state
boiler inspector when your message came in...and I totally concur.
Now this is interesting:
http://data.opi.state.mt.us/bills/mca/50/74/50-74-105.htm
and got a chuckle out of this..or maybe there is such a thing as a "Dinkey"
engine :-)
http://data.opi.state.mt.us/bills/mca/50/74/50-74-104.htm
I missed a complete Donkey engine setup a few months back 1500
rockets...damn!!!
Thanks Jim
> too.
> Best Regards;
> Jim Mackessy
> ----- Original Message -----
> From: "Richard Strobel" <Richard_Strobel7 at msn.com>
> To: "Steam-engine mailing list" <steam-engine at lists.stationary-engine.com>
> Sent: Thursday, October 20, 2005 12:57 AM
> Subject: Re: [Steam-engine] Wachs boiler update
>
>
> > Robert, I have thot about your post for over an hour. Initially, being
> > a
> > newbee, I thot WOW..well removing tubes is quite an extreme
> adventure!..but
> > after running it around..I now feel..what the hell, if all else fails
> > what
> a
> > truely rewarding experience it would be to get with a guru and replace
> those
> > tubes..damn, now that would be fun!!
> >
> > Thank you so much for your post!!!
> >
> > Rick
> >
> >
> > ----- Original Message -----
> > From: <HISTMACHRY at aol.com>
> > To: <steam-engine at lists.stationary-engine.com>
> > Sent: Wednesday, October 19, 2005 5:10 PM
> > Subject: Re: [Steam-engine] Wachs boiler update
> >
> >
> > >
> > >
> > >
> > >
> > > Rick,
> > >
> > > If this boiler was mine, or if I was hired to put the boiler back in
> > > service,
> > > at a minimum I would do the following.
> > >
> > > 1. Clean interior of all loose debris, and visually inspect the
> > > condition
> > > of all surfaces.
> > >
> > > 2. Perform an ultrasonic thickness measurement of the shell,
> > > tube
> > > sheets, and firebox sheets, and door hole ring.
> > >
> > > 3. Calculate the working pressure
> > >
> > > 4. Perform initial hydro, pressure based on calculated working
> pressure
> > > and appropiate factor of safety.
> > >
> > > 5. Remove all the tubes, clean interior, and visually inspect the
> > > interior.
> > >
> > > 6. Inspect the lap seam, this can best be done by radiography when
> the
> > > tubes are removed.
> > >
> > > 7. If every thing is good, install the tubes, do a hydro, and fire
> > > it
> > > up!
> > >
> > > At any step along the way, if things look bad, stop and revaluate the
> > > boilers
> > > use.
> > >
> > > A hydro in my opinion only tells me your boiler will hold water, that
> has
> > > nothing to do with the integrity of the boiler and it's components.
> > > The
> > > ultrasonic metal thickness measurement, done correctly, and even some
> > > basic
> > > calculations can tell you a lot about the boiler. The riveted seam
> > > that
> is
> > > weeping may be
> > > able to be caulked, however it may also be an indicator of another
> > > problem.
> > >
> > >
> > > Robert Yuill
> > > _______________________________________________
> > > Steam-engine mailing list
> > > http://www.stationary-engine.com/mailman/listinfo/steam-engine
> > >
> > _______________________________________________
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> >
>
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