Pressure Pot from a Propane Tank

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ribanett

ribanett

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Joined
Dec 15, 2007
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Location
Kenner, LA, USA.
Was talking with LOML this morning about converting a HF paint pot into a pressure pot. She got a twinkle in her eye that I have seen before when she starts thinking about a fun design project. She just happens to be a Hydraulics Engineer (PE). She is thinking about using a 20 pound (5Gal.) propane tank. This would double the volume from the HF pot and propane tanks are rated pressure vessels (240 psi).

Will post again when she has it all worked out.

Added by Margaret:
Everyone, Please let me workup the design on this pressure vessel. I have access to the proper testing equipment to make sure the design will be safe and function properly. Any vessel working above ambient pressure is dangerous and could be fatal.

If you decide to venture into designing your own vessel, DO NOT use a tank that has been filled with propane. BUY A NEW ONE!.
 
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I am looking forward to seeing this. I have a hard time imagining this without considerable machining.

Ahh, "mating" rings. Sounds better than good! :biggrin:
 
Last edited:
I believe someone has done this by cutting it apart and using flanges with lots of bolts. It was on a post just recently. If I can find it I will post the link.
 
GaryMadore said:
It won't be after you cut it ;)

I look forward to seeing the results of her Engineering mind.

Cheers!

Gary
Click to expand...


Gary,


Portable propane tanks in the US are rated at 240 psi. Nowhere in the first thread was it stated that my design would maintain this level.

BTW: This engineering mind has been designing hydraulic systems for over 23 years.

Margaret (Bs, Ms, PE)
 
ribanett said:
Was talking with LOML this morning about converting a HF paint pot into a pressure pot. She got a twinkle in her eye that I have seen before when she starts thinking about a fun design project. She just happens to be a Hydraulics Engineer (PE). She is thinking about using a 20 pound (5Gal.) propane tank. This would double the volume from the HF pot and propane tanks are rated pressure vessels (240 psi).

Will post again when she has it all worked out.

Added by Margaret:
Everyone, Please let me workup the design on this pressure vessel. I have access to the proper testing equipment to make sure the design will be safe and function properly. Any vessel working above ambient pressure is dangerous and could be fatal.

If you decide to venture into designing your own vessel, DO NOT use a tank that has been filled with propane. BUY A NEW ONE!.
Click to expand...


I know this is another old thread, but anyone know if this was folowed through and if anything became of it?

Thanks,

FlowolF
 
PTsideshow said:
Problem would be a lot more work,time, cost and materials than buying a top end Binks pot would cost! Sort of reinventing the wheel kind of thing.
:clown:
Click to expand...

Hi PT,
Seems that jhs494 made one I eventually turned up in a forum search - bloody huge thing! Their's has multiple bolt flanges round the top.

Similar idea to the one I had in mind, but if I do get one made:

Mine will be smaller.

I intend not to cut the entire top domed section off - i'll leave some of the bottle's in-turned lip to lend extra strength to the top of the tube so that a less heavy flange would be needed to supprot the open rim against the pressure.

My idea was then to have a 1/2 inch thick steel flat top plate/'lid', matching the flange on the body.

Flange would then have 4 radial slots fitted with 4 large bolts of known tensile and thread strngth, both hinged and captive, the lid having 4 matching slots with 'U'-channel reinforcements for the large wing-type nuts as per the good pressure pots - quick to fasten up and quicker to pressure should I start working with any fast cure PU's.

I love designing and making things!

Far as cost, with a heavy engineering place next to where I live that is always scrapping huge pieces of structural steel, and having 2 cousins who work with welding and heavy hydraulics, it may not cost me much to end up with the pressure pot * I want*, rather than the pressure pot that's available.

The cousins also have a pressure testing safety cage that could be rigged up for an extended hydrostatic test, plus a 200psi+ compressor to give my my 220% of working pressure testing.

If it gets too much I'll shelve the idea but, as I said - I love designing and making things (and I don't do half-arsed either)

Cheers, Be Well,

FlowolF
 
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