[Steam-engine] boiler feedwater injector conection

[Eric Applegate]

Hi George,
Thanks for your post and I agree with you about needing the feed water heater for the pump.  I sure it wont suprise you that the injector only method you are using doesn't suit me  much.  I like options.  I guess that is just who I am.  

Eric

---------- Original Message ----------------------------------
From: George Erhart <g_erhart at yahoo.com>
Reply-To: Steam-engine mailing list <steam-engine at lists.stationary-engine.com>
Date:  Sat, 5 Nov 2005 16:04:43 -0800 (PST)

>Eric,
> 
>Some comments ... if you use a pump, it is better to have a pre-heater between the pump and the boiler. One method is to use exhaust steam, another is to pass the pipe through the smokebox before entering the boiler. The injector does pre-heat the water because the steam that propels it, heats it.
> 
>As to the issue of multiple methods of getting water into the boiler, my engine only has a single injector and that is it. From the two catalogs that I have managed to purchase from e-bay, it appears that this is the original manufacturing configuration. I have a second, smaller injector I could put on, but because the engine is small, there is not much room to it in. As such, I have to be extra careful. My procedure is to fire the engine slowly til it reaches ~30-40 psi. At that point, the injector general will pick up. If it fails to function, I slow the fire and have time to work on the check valve or other areas. If I can't get it functional, then it's time to cool the engine and take things apart. As to running, I am extra cautious with the water level because it don't have a backup water supply. It is very important to blow down the water glass and verify the try cocks work. I am always ready to cool my injector by either running water down the pickup hose (from a wate
 r
> ing can
> I keep for that purpose), or putting a rag over the injector and pouring water on it until it cools. 
> 
>George
>1891 Groton Engine
>
>
>Eric Applegate <eric at glassactonline.com> wrote:
>
> Use up the steam the replace the water with the injector. The boiler will cool off lose presure and slow down the engine. 
>
>
>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. 
>
>
>George Erhart
>Loveland, CO
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>

--
Thanks,
     Eric Applegate
--