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Join Date: Jun 2015
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High Pressure Vessel Design

06/27/2015 2:43 AM

Hi

We need Professional service to validate our Mechanical design of a Pressure Vessel .

Operating Pressure : 350 bar Max

We need specifically a first principle approach to Mechanical Design Validation

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#1

Re: High Pressure Vessel Design

06/27/2015 4:00 AM

So why not hire an engineering design firm that does this by inquiring in your area?

If your post here somehow caught the eye of a member of this forum who does this, or knows who does, they wouldn't be able to help you because you haven't told us where in the world you need these services!

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#2
In reply to #1

Re: High Pressure Vessel Design

06/27/2015 4:06 AM

Hi,

I need these services in India . However with the Internet as the medium the service provider could be based anywhere in the world.

Essential is that , the Service Provider possesses the necessary qualifications and experience of having worked in similar area . 300 Bar and above Pressure vessels with threaded enclosures .

We are designing a 5 liter vessels for which we need these services . Deliverables will be the design calculations and conformoty to any international code such as ASME Section VIII

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#9
In reply to #2

Re: High Pressure Vessel Design

06/28/2015 8:48 AM

So instead of coming here, why aren't you on the phone to your insurance company instead?

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#3

Re: High Pressure Vessel Design

06/27/2015 9:21 AM

Where will the pressure vessel be permanently installed ?

Will the installation location require a construction and certification in conformance with the ASME or EIN codes ?

Realize that a safe PV requires design, construction, inspection and testing using certified materials in accordance with an accredited, nationally recognized code ! This is required by law in many places.... !

You may be much better off having your high pressure design quoted (for free) by a certified pressure vessel fabrication shop than having an independent review of the design.

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#4

Re: High Pressure Vessel Design

06/27/2015 4:37 PM

The phony capitalizations in this question make it look more like a religious than an engineering exercise. The weird language is an even greater issue.

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#8
In reply to #4

Re: High Pressure Vessel Design

06/28/2015 7:52 AM

I think some cultures use capitalisation (and 's' vs 'z') differently.

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#5

Re: High Pressure Vessel Design

06/28/2015 12:08 AM

5 litres and 300bar? Sounds like a scuba tank.

Any special reason the wheel is being reinvented?

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#7
In reply to #5

Re: High Pressure Vessel Design

06/28/2015 4:55 AM

No it sounds like a hydraulic accumulator

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#6

Re: High Pressure Vessel Design

06/28/2015 12:22 AM

Check out commercially available pressure vessels:

http://www.parrinst.com/

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#10

Re: High Pressure Vessel Design

06/28/2015 9:29 AM

An approach to design validation used by many, is to utilize a liquid for the test media. This will minimize the risk of explosion. The next thing is to measure the the displacement of the vessel while being pressurized. This will tell you the strain of pressurization. You can perform more detailed studies, by using strain gauges etc.

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#11

Re: High Pressure Vessel Design

06/28/2015 11:11 AM

Here is a link to available off-the-shelf tanks of suitable pressure.

Sounds like an accumulator for perhaps a small blow mold operation?

Why not just buy it instead of designing it?

It only took about 1 minute to find this using internet search.

You should try it sometime.

If you do not want to buy,they may release engineering specs on the tanks if you ask them nicely.

Or buy and reverse engineer to get a feeling for what is required,since you do not seem to have a clue.

http://www.hydacusa.com/literature/accumulators/nitrogen_bottles.pdf\

Here is a link to ANSI design if you want to make your own:

https://www.ndsu.edu/me/images/Kallmeyer/477/Pressure%20Vessel%20Example.pdf

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Participant

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#12
In reply to #11

Re: High Pressure Vessel Design

06/28/2015 2:56 PM

Hi all,

Thanks for your input

I was wondering what if we make a threaded cap to the vessel after all we can have a threaded cap to any pressure bearing part ?

What would be the issues if the internal pressure is 300 bar . The vessel inside diameter being 120 mm . I could not find a suitable design model in ASME VIII Div 2 for presseure vessels with a threaded cap .

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#13
In reply to #12

Re: High Pressure Vessel Design

06/28/2015 11:09 PM

I think you would have to pay someone to do the design review for you, who has the experience with those designs. Maybe ask the certifying body to recommend an engineering company in your area.

I think you are back to your first question, right?

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#14
In reply to #11

Re: High Pressure Vessel Design

06/30/2015 8:41 AM

It is an elephant, of which all of us are feeling up the stinky end. This guy will not even provide a snapshot of this elephant.

It is a scuba tank? not likely.

It is a hydraulic accumulator? Depends on if that is accidental or on purpose.

It is a reactor vessel in a laboratory or a pilot scale test of some chemical reaction? Possibly.

To the original poster: Go do your own homework, even if this is not homework. IHS (this website) has many other resources to offer in line with your question in "Products and Suppliers" tab at the top of the page.

It is a polymerization vessel? Hmmmm....could be, but that is just feeling up the elephant once again.

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#15
In reply to #14

Re: High Pressure Vessel Design

07/01/2015 3:45 AM

You make it sound like a veterinary application.

I think he is looking for cap and tank fitting specs.

I couldn't be stuffed looking it up for him.

Now, an elephant's flatulence pressure question would be better received.

After you......

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#16
In reply to #15

Re: High Pressure Vessel Design

07/09/2015 2:27 PM

In the attached drawing to your response, there appears to be a palpable problem.

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