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What type of level gauge is good for measuring the oil-water interface?

2010-02-02View Original

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We have an electrodesalination tank in our plant; what type of level gauge is suitable for measuring the oil-water interface? For crude oil and water
Reply #22010-02-02
A simple glass tube level gauge will suffice, but it is important to ensure that the upper end of the level gauge is in contact with the material. If the liquid level is high, multiple level gauges can be used in sequence to measure it. On the other hand, using multiple level gauges can effectively address the issue of the upper end of the tactile level gauge being in contact with the material.
Reply #32010-02-02
Measurement principle of the RF phase-locked interface analyzer: multi-phase continuous measurement principle, RF phase-locked layered scanning technology. Features: real-time monitoring of parameters such as oil thickness in crude oil storage tanks, thickness of the oil-water interface, water level height, and total liquid level; Automatically determines and adjusts the monitoring range for the moisture content of various media layers, ensuring high measurement accuracy ; Real-time monitoring of the oil volume in crude oil storage tanks to enable automatic inventory tracking ; The measurement is not affected by factors such as probe loading, ensuring accuracy and reliability ; Application areas: multi-interface measurement in crude oil storage tanks (vault-type, floating roof tanks, etc.), sedimentation tanks, dewatering tanks, and other similar applications
Reply #42010-02-02
This post was last edited by 9shanghai on 2010-2-2 at 17:29. I believe that using a double-flange differential pressure transmitter is a simpler and more reliable option. The principle is as follows: Let the density of the material at the upper surface be r1, and the density of the material at the lower surface be r2. According to the process design, the distance between the two flanges is H; therefore, (r2 – r1) * H represents the range of the double-flange transmitter. In practical use, an output adjustment is made based on the actual interface level, after which the transmitter can be used.
Reply #52010-02-02
In our design, we measured the interface between tar and ammonia water, and we used a magnetic float type; it’s not clear whether this is suitable for the situation described by the original poster
Reply #62010-02-02
In electrodialysis tanks, since a certain substance is added (I can’t remember what it is; I haven’t used them in 4 years), a large amount of foam forms on the surface; therefore, setting the admittance must be done by someone with experience.
Reply #72010-02-02
I have used DE (now acquired by AMTEK) as well as MAGNETROL; they seem similar to each other – the key is how to use them
Reply #82010-02-02
We use external float level transmitters to measure the oil-water interface in the electrodesalination tank. In such cases, it was difficult to measure accurately using differential pressure transmitters in the past.
Reply #92010-02-02
A double float level gauge can be used to measure both the level of water and the level of oil
Reply #102010-02-02
RF admittance interface meters are commonly used for measuring the oil-water interface in three-phase separators
Reply #112010-02-03
Could you tell me what the float used for measuring the interface between tar and ammonia is used for on the 5th floor? Provide a specific unit and contact person! I have a friend who is looking for an interface meter to measure the interface between tar and ammonia. Send email to xp0631@163.com

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