Interface meter type?
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In the liquid-liquid extraction process, how is the phase separation interface determined? Does a magnetostrictive interface detector need to be inserted a long distance into the extraction tower? How does a radar interface detector work, and is it effective?
If there is a significant difference in density due to clean media, a float can be considered
Anyway, differential pressure gauges are quite useless; I’ve seen other factories using remote-operated magnetic flap level gauges, and it’s important to calculate the density of the magnetic float properly!
The magnetostrictive interface meter must be in a stable condition, with the densities of the two media remaining essentially constant, to ensure accurate measurements. If the medium is dirty, the float and similar components need to be cleaned frequently.
In the liquid-liquid extraction process, how is the phase separation interface determined? Does a magnetostrictive interface detector need to be inserted a long distance into the extraction tower? How does a radar interface detector work, and is it effective? 1. A difference of 2 in the dielectric constants of the two media is required (the exact value needs to be determined), and the dielectric constant of the upper layer must be lower than that of the lower layer, in order to use guided-wave radar to detect interfaces. 2. For magnetostrictive interface meters, the float must be in contact with the medium; the density difference also needs to be taken into account. 3. If the dielectric constants of the two media differ significantly and remain stable, regardless of which one is higher, a matrix capacitive level meter can be considered. 3. Depending on the density difference, options such as differential pressure density meters or floats can also be considered. 4. Other properties of the medium must also be taken into account
I object to those who say that differential pressure is useless. Those who say differential pressure is useless don’t understand how to calibrate it. To use a buoyant level gauge to measure an interface, it is necessary that there be a significant difference in density between the two liquids, with no substantial changes in that difference. Otherwise, it’s either at the very bottom or at the very top. When using radar, it is necessary to ensure that the liquid floating on top has a poor ability to reflect radar waves. In other words, the dielectric constants of the two liquids differ significantly; put simply, one is an insulator while the other is a good conductor. Radar can be used.
It mainly depends on the stability of the two media; differential pressure transmitters are quite useful in such cases.