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Float level gauge measurement interface

2011-07-20View Original

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Now, a float level gauge is to be used to measure the oil-water separation interface, with the density of water being 986.5 and that of oil being 867.7. I was wondering, is such a design easy to test and stable? Are there any other types of level gauges that would be better for this purpose?
Reply #22011-07-20
Could we think in a different way? I’m not sure if it will work (please point out any mistakes if there are any). If the tank is conductive, can’t a capacitive level gauge be used to detect the oil-water interface?
Reply #32011-07-20
The density difference is too small; it’s likely not feasible. It’s necessary to consult the manufacturer for details. Guided wave radar can be used (it’s better than magnetostrictive sensors, and it’s required that the dielectric constant of oil and water be greater than 10). Additionally, differential pressure transmitters can also be employed within an appropriate range.
Reply #42011-07-20
A density difference of more than 100 allows for measurement (the technical requirements vary among different manufacturers); however, magnetic flip plates are not the most ideal choice. It is recommended to use a float level gauge, with a torsion tube-type float possibly providing more stable measurement results. I’m from an instrument manufacturer; feel free to contact me privately if you need anything. :lol
Reply #52011-07-20
Balls can be used, or a capacitive level gauge can be chosen
Reply #62011-07-20
In our factory, we mainly use buoys and guided-wave radars for boundary measurement; high-precision double-flange devices are also an option.
Reply #72011-07-20
Using a floating ball to make measurements doesn’t seem to work; the difference in density is too small. Do you mind choosing a float? Their two measurement principles are different. The oil-water interface levels in our unit are basically measured using buoys.
Reply #82011-07-20
Magnetostrictive level gauges are very useful. Our company uses K-tek.
Reply #92011-07-22
Float balls can be used, but they require a lot of maintenance; it is essential to pay attention to the proper procedures during maintenance, and their stability depends on how well they are maintained. Capacitive types can also be used for measurement; if you need relevant information, please send an email to xp0631@163.com or call at 13806306857
Reply #102011-07-22
I think it’s possible; aiming for a density of a little over 900 should work! ! !
Reply #112011-07-22
In our oil refining industry, this kind of situation is measured using double flanges

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