Selection of level gauges for styrene storage tanks
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The styrene horizontal storage tanks used in our factory are buried underground, with about 50 cm of soil covering them; grass is planted on top of this soil. However, measurements show that the temperature inside the tanks can reach up to 30°C, and the tanks do not have coils or jackets. Currently, magnetic flip-top level gauges are being used, but in practice they often fail due to the evaporation of styrene, which causes polymers to adhere to the float and the sleeve (or to the support rod of the float). I now want to switch to a radar level gauge, but styrene is considered a flammable and explosive substance of Category A; I’m not sure if there are any risks involved. I’ve also thought that even with a radar level gauge, if polymers continue to adhere to it, it probably won’t be very effective, but cleaning it would be much easier compared to using a float level gauge. Even if measures were taken to reduce the temperature, they cannot be implemented now; the storage tank lacks jackets and coils – what better level gauge is there?
Liquid phase: Submersible gas collection and isolation pressure sensing sensor with a diaphragm that is not in contact with the liquid; Gas phase: Avoid using thick pipes for pressure transmission, and use a zero-pressure-loss adhesive to prevent sticking of the probe. The combination of these two probes allows for the calculation of the liquid level by means of difference measurement, with a 4–20mA output over two wires. Come to bro if you have a problem. The question isn’t hard; I won’t do it. I’ll tear up the exam paper and attack the teacher. . One step ahead in skill – peeing from the third floor – this is a new idiom I created today. Isn’t it catchy? :P
If what you say is true, then your container should be a sealed one; it’s necessary to measure the interface, and a guided-wave radar interface detector can be used for that
The guide rod might not be suitable for use; polymers can stick to it, which in turn leads to poor measurement results. Try using a floating buoy – it doesn’t matter if polymers stick to it – or go with a radio frequency radar instead
E+H’s servo level gauge uses a float that follows the actual liquid level to measure it, and the presence of gas or deposits has little impact on its performance. But whether it can be used or not needs to be evaluated by the design institute.
1111111 You needn’t show off here; I’ll keep reporting you. As the saying goes, evil can never overcome good! :victory:
This kind of attachment can stick to the support rod of the floating ball, preventing it from moving with changes in the liquid level; otherwise I wouldn’t be at a loss
Is it dangerous to use guided wave radar with Class A flammable and explosive materials?
There should be no problem; the electrical components are well insulated from the medium. As long as the pressure isn’t very high, there won’t be any interference. Reiterate this point with the manufacturer during the selection process, and there will be no issues
You’re right; I didn’t think of that. If the control cable or control rod gets covered, it could lead to incorrect readings, and there could also be problems with the float. If everything gets covered by residue, the weight of the float will change. Ugh, that’s troublesome
The blowing method might be quite tricky too; it would be bad if it gets blocked