Thread Content
Dear expert: Can an electromagnetic flowmeter be used to measure the flow rate of a mixture that is 70% crude oil and 30% water? Thank you for your advice!
It shouldn’t work; there is no flow when there is oil, and the pump is very stable
No, use a positive-displacement flow meter
For measuring oily materials, the use of electromagnetic methods is not recommended. However, if it is mixed evenly, it should be possible to detect it, but the instability is a concern. It is recommended to use flow meters such as turbine or positive-displacement types
This topic is very innovative; I’ve learned something from it.
It can’t be dismissed casually. If the mixture of oil and water is of good quality, it is feasible; however, a conventional electromagnetic flowmeter cannot be used – instead, a capacitive electromagnetic flowmeter is required, that is, an electrodeless flowmeter with a ceramic lining. You can consult Yokogawa Electric to choose an electromagnetic flowmeter from the CA series. If they express doubts, tell them that it was said by the person with the highest level of expertise in field instrumentation who left Yokogawa Electric.
It is recommended to use a mass flow meter, as it can measure the mixture density as well as the concentration of each component and the ratio of water to oil.
When the viscosity is not particularly high, a vortex flow meter can be used to check it