[Steam-engine] boiler feedwater injector conection

[Eric Applegate]

If you don't have a duplex a little piston pump that works off the crank on your engine might be nice.  It would be easy to build basicly a cylinder a piston and some check valves.

Eric

---------- Original Message ----------------------------------
From: "Richard Strobel" <Richard_Strobel7 at msn.com>
Reply-To: Steam-engine mailing list <steam-engine at lists.stationary-engine.com>
Date:  Sat, 5 Nov 2005 17:14:43 -0700

>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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>> >
>>
>> --
>> Thanks,
>>      Eric Applegate
>> --
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--
Thanks,
     Eric Applegate
--