O2 Pressurized Container, Device 1

[TrickySparks]

Searching for a material, like-device or idea for a container to store, serve as reservoir for O2

ADDITIONAL INFO
No Larger than 10" x 6" (smaller the better)
If possible, shrink in size w/ consumption
Lightweight (No more than 1-2 LBS)
Hold up to 8 liters of 02



Open to any ideas?

THX

T.S.

 

[LittleInch]

Air or o2?

What pressure?

Gas or liquid O2?

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[zeusfaber]

Lots of unanswered questions there:

Air or Oxygen? (you mention both)

Is "Compressed" actually a requirement? If so, what pressure do you need and what variation is permissible as the gas is consumed.

Can you explain why the thing has to shrink as the gas is consumed and how much shrinkage you're looking for. Even a steel pressure vessel will shrink a little as you depressurise it - but you sound like you might be hoping for a bigger effect than that. Does the whole mechanism need to shrink, or are you just trying to create a reservoir that maintains a constant pressure through to exhaustion?

Be useful to put some numbers to "extended time", "lightweight" and "durable" - and to clarify whether the 8 litres is measured at stored pressure, or when expanded to atmospheric.

A.

 

[GenB]

The only in mention that shrinks will be a party balloo...
Titanium, carbon and plastics fibers are a good choice but will not schink. You can keep same pressure pushing the product as an extractor do. Now go and run an your study or invention.

General Blr. CA,USA

 

[zeusfaber]

Depending on what your requirement actually is, the thing you are trying to describe might be a gasometer.

For a volume as small as 8 litres, it could be possible, simpler and cheaper to store the gas in a Mylar balloon contained within a gasometer-type shell (creating a hybrid between a gasometer and a bladder accumulator).

A.

 

[LittleInch]

If these hold helium for days on end they'll hold Oxygen...

http://www.click4balloons.co.uk/gia...-22582-p.asp?gclid=CNua3_C9xNECFSIL0wod4BEJLQ

Remember - More details = better answers
Also: If you get a response it's polite to respond to it.

 

[Knife44]

FYI. Low pressure Gaseous Oxygen is very combustible. It will react with and burn any petroleum based products including rubber, oils, thread sealant etc. You can literally have a fire inside the part and not know it until it starts changing colors.

Carbon steel above 15psi is combustible in Pure o2
300 series stainless do much better up to 200 PSI
Copper and nickel alloys(>50%Ni) very fire resistant.
Aluminum alloys - OK for Zero flow, but in low flow conditions can ignite causing a large release of energy.
Titanium is a big no no.

Source API571 - Gaseous Oxygen-Enhanced Ignition and Combustion.

API510,API570,API653,API577,API571,
API580, NBIC AI. A.S. Eng, BSME