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Selection of level gauges for desulfurization regeneration towers: How should level gauges be selected for desulfurization regeneration towers and sulfur foam tanks? Since there is a large amount of sulfur foam at the top of the regeneration towers in the HPF wet desulfurization process, over time the level gauges may fail to provide accurate readings of the liquid level. To ensure that the level of water in these towers and tanks can be monitored, it is necessary to have accurate level indications to facilitate operation. Experts, please suggest solutions.
If a non-contact level gauge is used, it may only be able to detect the foam on the surface and not the actual liquid level. Should a differential pressure level gauge be used? If so, which model would be suitable?
The poster can use a single-flange level transmitter, but the selection of the measurement point is very important. Do not use it to directly measure sulfur foam; instead, choose a lower measurement point to measure the level of the desulfurization liquid. The actual measured ratio of the desulfurization liquid to the foam interface level is slightly lower (due to the effect of sulfur foam); once an empirical value is determined, it can be used to guide production. The workers on site must be very good at figuring things out through experience. In my opinion, communicate more.
Can a double-flange level transmitter be used? Is there any difference from level transmitters with a single flange? Some manufacturers use the 118-type differential pressure level gauge with double flanges.
Radar level gauges can be considered~~~
If the regenerator uses a tall tower for regeneration, here’s an idea to help you: use a separate air compressor to supply air to the regeneration tower; by dividing the air pressure from the compressor by the density of the mother liquor, you can determine the height of the mother liquor level. After working for a long time, the mother liquor level can also be observed from the current of the main mother liquor pump. Foam tank: Nowadays, desulfurization is generally carried out using desulfurization slurry on an intermittent basis, so there’s no need to install a level gauge, right?
Reply to 5#: I’m a night owl. The radar level gauge can only detect the foam at the top; it cannot measure the liquid level below the foam.
Double-flange differential pressure level gauges offer higher accuracy; therefore, it is correct to use double-flange level gauges.
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The most commonly used 26GHz pulsed radar can be employed, unaffected by foam; Nuclear level gauges can also be used; Baigang, Salt Lake Group, and Yangzi Petrochemical use many American RONAN nuclear level gauges and density meters