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Cryogenic Level Measurement
2

Cryogenic Level Measurement

Cryogenic Level Measurement

(OP)
Hoping Someone can point me in the right direction. I have two vessels - 70' by 16' filled with Liquid Hydrogen at -423 at 100psig using Nitrogen to offload so there is a regular hard boiling issue. I need a level measurement system to send a signal - no local indication needed.

Fully flexible regarding tank connections and etc. so I'm open to any suggestions - Mainly up against the temp and interface - has anyone dealt with this before?

Thanks.

RE: Cryogenic Level Measurement

How accurate - gross liquid height or for custody transfer?  Can you use a temperature strip on the outside of the tank shell?

RE: Cryogenic Level Measurement

Will radar work?

RE: Cryogenic Level Measurement

I worked 5 five years ago, in an ASU plant (air separation unit). We had several cryogenic storage tanks (LOX, LIN and liquid argon), level were measured with a level transmitter.

You can find many fabricators (Fisher, Rosemount, etc). Level transmitter works with differential pressure, it takes gaseous phase from nitrogen and internally convert in a signal of 4-30mA, signal goes to a control room or remote panel.

Regards

RE: Cryogenic Level Measurement

I am sorry shall be 4-20mA

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