What type of flow meter should be used to measure oil at 200°?
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What type of flow meter should be used to measure oil at 200°C? The viscosity of the oil is similar to that of ink, at a temperature of 200℃
What are the viscosity and density of the ink?
The viscosity is around 40,000 CP; the density isn’t very clear
For mass flow meters, I personally think they are a good choice.
Mass flow meter; oil is non-conductive, accurate measurement at high temperatures
For materials with too high viscosity, it is not recommended to use flow meters for measurement; instead, pumps such as piston pumps or screw pumps can be used. If only flow meters can be used, then positive displacement flow meters should be chosen, such as gear-type flow meters or scraper-type flow meters. Try not to use mass flow meters, as that will cause a very large pressure loss. Additionally, if the viscosity of the material at 200 degrees has already decreased, a wedge flow meter can be chosen.
For mass flow meters, it seems that they can measure temperatures up to 350°C; these devices use high-temperature coils, and brands such as HighSense and E+H are available. The value of 40,000 CP appears to be the viscosity measured in a laboratory setting; this value may be lower when there is high-speed motion. It’s best to ask the manufacturer to perform the calculations for you, or to check if there are any similar applications.
The key factor is the flow rate – the larger the diameter, the higher the cost!
Theoretically, our material has a value of 30,000 CP; it is still possible to conduct measurements at low temperatures. It’s a DN80 model, and the effectiveness is currently being tested.
Try something like ultrasound; I saw a question today about rooting, and a type of high-temperature ultrasound is used for detecting the oil return flow rate in hydrocracking.