[Steam-engine] boiler feedwater injector conection

[Richard Strobel]

Good info Eric..I'll take all the rambling you can provide!!

  Never thot about regulating the flow on a duplex pump....are they called 
steam lizards in some parts?

  Hmmm, maybe my machinist bud could build one.

The big Case over in Ft. Missoula has 3 or 4 injectors, plus a duplex.  The 
injectors are connected to a manifold of some sort.

Thanks
Rick


----- Original Message ----- 
From: "Eric Applegate" <eric at glassactonline.com>
To: "Steam-engine mailing list" <steam-engine at lists.stationary-engine.com>
Sent: Saturday, November 05, 2005 3:26 PM
Subject: Re: [Steam-engine] boiler feedwater injector conection


> There is sure nothing wrong with having two injectors.  But (and there is 
> always a but) it is hard to beat a good duplext pump on a stationary 
> setup.  The idea being that you can set your pump to run as fast or as 
> slow as you want, and basicly what you want is to replace the water at the 
> same rate you are evaporating it.  So if you are using up steam then the 
> pump is replacing the water while you are working.  With and injector you 
> will run your engine.  Use up the steam the replace the water with the 
> injector.  The boiler will cool off lose presure and slow down the engine. 
> Now how much the new water efects your boiler is determined by how good an 
> operator you are which mean lots of thing and knowlege is the key.
>
> That was just rambling on here is advice.  Two ways of puting water in a 
> boiler is a must.  Three is even better and I don't think you will have 
> any one call you redundent if you had four.  What if one injector over 
> heats and wont draw water anymore?  It happens.  It is plumbed up right 
> next to a now very hot second injector.  If that were my ONLY two ways of 
> getting water in the boiler I would be sweating it a little.  OK so it 
> turns out this is rambling too.
>
> Safe bubbles
> Eric
>
> ---------- Original Message ----------------------------------
> From: CopperheadMarine at aol.com
> Reply-To: Steam-engine mailing list 
> <steam-engine at lists.stationary-engine.com>
> Date:  Sat, 5 Nov 2005 16:44:05 EST
>
> >Rick
> >
> >  Usually the steam supply is from the highest port you can find on  the
> >boiler. The injection point can vary from midway on the boiler to near 
> >the
> >bottom. I don't think I have seen one teed int the trycock? I'm not sure 
> >if an
> >injector will work if it is injecting above the water level but it might? 
> >I have
> >mine teed int a 1" port near the bottom. I have a blow down valve there 
> >and
> >a half inch blowdown on the other side of the boiler as well. Seems to 
> >work
> >fine for me.
> >
> >  I have two half inch injector feeding from the same steam line and 
> > feeding
> >water in the same injection line. Each has its own steam valve and check
> >valve. One is a low pressure and one is a standard. They work well and 
> >even work
> >tandem if you wish to inject that much water at once. I like having a 
> >back up
> > injector. I will send you picture off the list.
> >
> >Charlie
> >_______________________________________________
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> >http://www.stationary-engine.com/mailman/listinfo/steam-engine
> >
>
> --
> Thanks,
>      Eric Applegate
> --
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