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Gravity Drop Pipework Velocity Control? Static

gravity velocity

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#1 AndyChemEng

AndyChemEng

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Posted 20 September 2018 - 10:37 AM

Hi,

 

I have a query I was wondering if anyone could help with. 

 

Is there a way to slow the flow down on a gravity drop of pipework below 1m/s?

 

The system is one pot draining into another pot 10 metres below through an almost vertical pipe with 4 slight bends.

If I add a restrictor plate to the top of the pipe my thought is you will get partially filled flow below which it will still accelerate to a velocity greater than 1 m/s. Can I add 2-3 restrictor plates? Is there another way to do this without expensive pipework changes?

 

It's two phase non-conducting fluid and our standards restrict us to this velocity to mitigate against a static risk and we need to adhere to it as we can't guarantee the pot won't have a flammable atmosphere.

 

Andrew



#2 thorium90

thorium90

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Posted 20 September 2018 - 10:51 AM

I think the only real way to change the velocity throughout the whole pipe is to change the whole pipe...


Edited by thorium90, 20 September 2018 - 10:53 AM.





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