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Steam Stationary Engines, Traction Engines Antique steam engines, their boilers, pumps, gauges, whistles and other related things that make them run.

Steam Stationary Engines, Traction Engines

2019 project - homemade portable steam engine


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  #1  
Old 03-21-2019, 04:30:32 PM
colo colo is offline
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Default 2019 project - homemade portable steam engine

Here is the project for 2019.
I recently bought a small vertical boiler built in 1939
and so I thought of connecting it to a small steam engine bought years ago in the United States:
https://www.smokstak.com/forum/showthread.php?t=90144


Senza titolo by Davide Coloretti, su Flickr
IMG_3604 by Davide Coloretti, su Flickr
IMG_3608 by Davide Coloretti, su Flickr
IMG_1662 by Davide Coloretti, su Flickr
IMG_1679 by Davide Coloretti, su Flickr
IMG_1709 by Davide Coloretti, su Flickr
IMG_1711 by Davide Coloretti, su Flickr
IMG_1847 by Davide Coloretti, su Flickr
IMG_1712 by Davide Coloretti, su Flickr
IMG_1861 by Davide Coloretti, su Flickr

---------- Post added at 09:30:32 PM ---------- Previous post was at 09:28:27 PM ----------

Here is a quick test, no safety valves, no level glass ... everything under control.

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Old 03-21-2019, 04:35:03 PM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Here are some sketches for the project

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr

---------- Post added at 09:33:49 PM ---------- Previous post was at 09:32:30 PM ----------

It may seem like only a wheelbarrow full of irons

Senza titolo by Davide Coloretti, su Flickr

---------- Post added at 09:35:03 PM ---------- Previous post was at 09:33:49 PM ----------

... but is not so
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr[/quote]
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  #3  
Old 03-21-2019, 04:40:20 PM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

The work proceeded as planned

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr

---------- Post added at 09:38:24 PM ---------- Previous post was at 09:37:08 PM ----------

The boiler is installed

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr[/quote]

---------- Post added at 09:40:20 PM ---------- Previous post was at 09:38:24 PM ----------

Well, in 5 minutes here is posted the work of 3 months ....
I am now working on piping.
In the coming weeks you will see the complete work ... and then a nice test movie

nda:
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Old 03-21-2019, 05:52:03 PM
Oilpulled Oilpulled is offline
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Default Re: 2019 project - homemade portable steam engine

Here is the only thing which I could find on Mazzi:
http://www.mazziarturo.it/prodotti/g...re-modello-ab/
I did not read that language.

The rating of 3KG/Cm squared equates to 43 PSI in the obsolete pound inch system. That would let the steam engine turn over. At that rating, I assume the boiler was to be used for process steam rather than for engine power.
That engine is neat, having the frame of structural steel.
Ed
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Old 03-21-2019, 06:01:30 PM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Quote:
Originally Posted by Oilpulled View Post
Here is the only thing which I could find on Mazzi:
http://www.mazziarturo.it/prodotti/g...re-modello-ab/
I did not read that language.

The rating of 3KG/Cm squared equates to 43 PSI in the obsolete pound inch system. That would let the steam engine turn over. At that rating, I assume the boiler was to be used for process steam rather than for engine power.
That engine is neat, having the frame of structural steel.
Ed
Hi Ed,
you are right 3 bars are not many, but the engine is small and they are more than enough.
This boiler was used in a hospital in Florence for the sterilization of surgical instruments
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Old 03-21-2019, 08:02:25 PM
Odin Odin is offline
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Default Re: 2019 project - homemade portable steam engine

Yikes!

The first picture you showed of the boiler you are using, it appears to be equipped with a dead weight safety valve. Old tech sure, but better than nothing. Meanwhile your video of testing things out, that safety valve was gone and there was nothing obviously providing the same purpose. Scary stuff!

I'd at least put that original valve back on until you can get a modern type pop safety to put on this thing. Its way too easy for a fire to get away from you and send the pressure dangerously high without such a device, especially on a boiler that was designed for a fairly low pressure to begin with.

Running without a sight glass is risky, but vertical firetube boilers do have a lot more water between your normal working level and your crown sheet. Still not the best of ideas, even though you could regulate the boiler successfully using the try cocks on it.

The overall idea of the boiler and engine mounted together on a cart isn't bad, it looks like a pretty convenient setup. But before you get too carried away with putting this together and making it run, I'd put some time and money into proper safety equipment so that your boiler is safe to operate. Might be worth getting it inspected, I'm guessing you're not in the US with this so I wouldn't know the relevant boiler codes.
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Old 03-22-2019, 03:18:04 AM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Hi Odin,
your security advice is correct,
I am well aware of the risks of steam.
The test, however, was carried out with calculated attention, I brought the boiler to 2.5 bar, and then I immediately put out the fire.
So there was no possibility that I would lose control of water level or pressure.

As a safety valve, and other devices, I will keep what you see in the picture, correctly restoring the original functionality.

Here in Italy it is not possible to certify an 80-year-old boiler, it is a boiler that must be demolished, used at my own risk.

Thank you
Davide
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Old 03-22-2019, 01:25:41 PM
Pete LaBelle Pete LaBelle is offline
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Default Re: 2019 project - homemade portable steam engine

Hi Colo -

Fun little project you are working on there. Nice that the wheels all match.

I too am concerned with the old style safety valve. Besides the ease of being over-ridden, your little engine with a non-balanced crankshaft will cause vibrations to the carriage, and as pressure is nearing the relief pressure, it will most likely start to bounce some, causing an irritating pssst pssst pssst pssst leaking of the current relief valve. Highly recommend getting a newer style relief valve rated for the pressure, and leaving the old one on your desk as a conversation piece.

I know you indicated that you indicated your test was under controlled conditions, and that there was no possibility of an accident, but that is why they are called accidents. There are plenty of opportunities to become distracted. Go into the hobby eyes wide open and don't play till your outfit is fully ready. We all don't want to see you & your friends get hurt.

This'll be a fun little engine to play with once it is done. Keep sharing your experiences !

Pete
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Old 03-22-2019, 02:42:31 PM
Grape Grape is offline
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Default Re: 2019 project - homemade portable steam engine

How about plumbing in both the old, and a new style safety valve? Have the best of both ideas....... I love the cart and the whole design. Thanks for sharing.
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Old 03-22-2019, 02:59:58 PM
Odin Odin is offline
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Default Re: 2019 project - homemade portable steam engine

Quote:
Originally Posted by Grape View Post
How about plumbing in both the old, and a new style safety valve? Have the best of both ideas....... I love the cart and the whole design. Thanks for sharing.

This is what I'm thinking as well. Purchase a new safety valve of the modern type to enforce the boiler's actual working pressure- a pressure which should really be determined by ultrasound examination of the boiler and calculation from the measured thickness.

The old valve is then plumbed in separately off the steam main, with a stop valve to turn it off if it becomes obnoxious. Then its pressure can be set slightly below the modern safety valve in order to demonstrate the old valve's operation, but if it gets too annoying it can be turned off and you are still safe because of the modern safety valve connected directly to the boiler.

It surprises me more than it should that Italian boiler code does not include a section for historic boilers that gives some allowance for vintage hardware relative to their specifications for modern boilers. Still worth taking the time to learn what the code for modern boilers would be and try to match it best you can with the boiler you have and properly installed control devices. Could also read up on how American boiler code handles historic boilers and use that as a reference for what needs to be done with your boiler to keep it safe and enjoyable.
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Old 03-22-2019, 03:24:59 PM
SteamMedic SteamMedic is offline
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Default Re: 2019 project - homemade portable steam engine

I wonder if having you axle run through your ash pan is going to cause problems, I worry that it will get to a temp where it is malleable and sag or break under the weight of that boiler. Cool design and neat engine!
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Old 04-21-2019, 10:59:09 AM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

We are almost at the end of the work, the light begins to be seen
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
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Old 04-21-2019, 11:02:17 AM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

finally we have it, HAPPY EASTER all over STEAM

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
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Old 04-21-2019, 11:04:30 AM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr

---------- Post added at 05:04:30 PM ---------- Previous post was at 05:03:29 PM ----------

and finally a nice video ... it is still missing a little detail, the steam whistle, but be patient

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Old 04-21-2019, 02:19:17 PM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Quote:
Originally Posted by Pete LaBelle View Post
Hi Colo -

Fun little project you are working on there. Nice that the wheels all match.

I too am concerned with the old style safety valve. Besides the ease of being over-ridden, your little engine with a non-balanced crankshaft will cause vibrations to the carriage, and as pressure is nearing the relief pressure, it will most likely start to bounce some, causing an irritating pssst pssst pssst pssst leaking of the current relief valve. Highly recommend getting a newer style relief valve rated for the pressure, and leaving the old one on your desk as a conversation piece.

I know you indicated that you indicated your test was under controlled conditions, and that there was no possibility of an accident, but that is why they are called accidents. There are plenty of opportunities to become distracted. Go into the hobby eyes wide open and don't play till your outfit is fully ready. We all don't want to see you & your friends get hurt.

This'll be a fun little engine to play with once it is done. Keep sharing your experiences !

Pete
Hi PETE,
have you seen the video?
In the end the valve works correctly, I also tried increasing the engine revs, and consequently the vibrations, no problem, the valve is not affected by these vibrations.
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Old 04-21-2019, 03:41:11 PM
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Default Re: 2019 project - homemade portable steam engine

Quote:
Originally Posted by SteamMedic View Post
I wonder if having you axle run through your ash pan is going to cause problems, I worry that it will get to a temp where it is malleable and sag or break under the weight of that boiler. Cool design and neat engine!
Hi SteamMedic,
this French portable steam engine



has the same system,
rear axle inside the ashtray.
Quiet, of course it gets hot, but we are very far from becoming "red".

---------- Post added at 09:29:04 PM ---------- Previous post was at 09:24:22 PM ----------

Hi ODIN,
I understand your concerns,
but here in Italy officially they are pieces of iron to be demolished.

If they are put back into operation, there is no legislation that can ensure safety.
I know the dangers of steam and I try to do everything possible to prevent any problems, especially for me !!!!
Consider that I work at a maximum of 1.5 - 2 bar of pressure.

---------- Post added at 09:41:11 PM ---------- Previous post was at 09:29:04 PM ----------

As you can see in the video the testing went well, better than I was hoping for !!
Only one thing didn't work as I had hoped: the hydrostatic lubricator.
The oil came out, but I think too quickly, and I didn't see the glass tube fill with condensation and then gurgling the oil drop by drop.

The glass was immediately dirty with an oil + water emulsion, and so it remained.
Am I doing something wrong?
Here's how I work:
- 1/2 gas pipe
- pressure 1.5-2 bar
- motor oil
- when I am under pressure I work (1.5-2 bar) I open the valve n ° 1 completely, I open the valve n ° 2 of 1 turn, I open the valve n ° 3 of 1 turn

THANK YOU

IMG_1863 by Davide Coloretti, su Flickr
Senza titolo by Davide Coloretti, su Flickr
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Old 04-21-2019, 11:15:46 PM
Pete Deets Pete Deets is offline
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Default Re: 2019 project - homemade portable steam engine

Hi Colo,
Molto Bene! A very nice bit of work. Please forgive the fact we have been taught to fear a deadweight relief valve.

As for your lubricator, you said you'd used motor oil. Do you mean oil like you'd use in your automobile or oil formulated for steam service? If you're not using steam cylinder oil then it will just fuzz up in the glass and not feed or lubricate properly.

Was the lubricator clean when you started? Perhaps there were some "leftovers" from prior use that caused the oil to act strangely.

Thank you for sharing your work and please keep us updated as you go!...........PD
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Old 04-22-2019, 02:21:31 AM
colo colo is offline
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Default Re: 2019 project - homemade portable steam engine

Quote:
Originally Posted by Pete Deets View Post
Hi Colo,
Molto Bene! A very nice bit of work. Please forgive the fact we have been taught to fear a deadweight relief valve.

As for your lubricator, you said you'd used motor oil. Do you mean oil like you'd use in your automobile or oil formulated for steam service? If you're not using steam cylinder oil then it will just fuzz up in the glass and not feed or lubricate properly.

Was the lubricator clean when you started? Perhaps there were some "leftovers" from prior use that caused the oil to act strangely.

Thank you for sharing your work and please keep us updated as you go!...........PD
Hi PETE,
the lubricator has been disassembled and perfectly clean.
But you said well, I didn't use oil for steam but car oil.
Do you think it's too fluid? Please indicate the characteristics of the steam oil.
I don't know how to find it here in Italy.
If possible, indicate the viscosity code: 5W30 10W40, etc.
Thank you
Davide
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Old 04-22-2019, 08:31:05 AM
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JBoogie JBoogie is offline
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Default Re: 2019 project - homemade portable steam engine

You're 100%, NO amount of legislation can ensure complete safety.

Anyways, you need the lubricator to be in direct communication with the boiler. If you're throttling the engine with the valve at the boiler as soon as you close it you lose equilibrium and the remaining pressure in the lubricator makes it puke everything at once. Keep that valve wide open all the time and use the valve nearest the engine as a throttle.

Displacement and hydrostatic lubricators can be tricky little bastards but once you get the hang of them they're really reliable and work well. A drop every few minutes should be plenty. If you cant find instructions for yours you should be able to figure out what works with a little experimentation.

You definitely want STEAM CYLINDER OIL in your engine. Find a local oil distributor. If the smallest quantity they sell is more than you want try asking for some samples. All of the major oil companies produce the stuff, it shouldn't be hard to track down. I think you can get by the pint or quart on Ebay if all else fails.
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Old 04-22-2019, 09:57:47 AM
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Default Re: 2019 project - homemade portable steam engine

Davide, fun project.
Perffec (UK) sell steam oil in Italy. Mobile 600W is a commonly used oil in the US.
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