How to choose dual-level gauges for the vacuum tank in the polyester production polycondensation reactor
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Our factory has recently built a new polyester production line. Based on the experience gained from the old line, it is difficult to find a level gauge that offers good performance and durability for the pre-polymerization reactor, as this reactor operates under high vacuum and negative pressure. On one of the lines, a blow-out type level gauge combined with a radioactive level gauge was used, and the results were very good. However, this new project is a research-and-development line with an annual production capacity of only 10,000 tons; therefore, we prefer not to use radioactive level gauges. I would appreciate it if experts could recommend suitable level gauges for this purpose. (PS: Double-flange level gauges perform poorly in vacuum conditions; radio frequency admittance level gauges have magnetic rings that tend to get damaged and lose their insulation, which makes them unsuitable for use on old pipelines. Float-type level gauges are prone to crystallization, and they tend to break after being calibrated during shutdowns. I’m wondering if magnetostrictive or radar level gauges could be used instead.) Thank you! !
Use a float level gauge. . . . . .
A tuning fork level gauge can be used. . . . . . . . . . . . .
Come and take a look; thanks for sharing! ! ! ! ! ! ! ! ! ! ! !
If the original poster doesn’t want to use a radioactive source, they can try imported radars; although their performance isn’t as good as that of radioactive ones, they can still be used as a temporary solution
The reaction tank is equipped with a stirrer, so a radar level gauge may not be very effective. Consider using a high-quality double-flange diaphragm-sealed differential pressure transmitter. Negative pressure below -97 KPa should be fine.
The reaction tank is equipped with a stirrer, so a radar level gauge may not be very effective. Consider using a high-quality double-flange diaphragm-sealed differential pressure transmitter. Negative pressure below -97 KPa should be fine.
The blowing function is really useful; we have used many sets for pre-polycondensation and final polycondensation