Level gauge selection
Thread Content
In a stainless-steel underground tank filled with a mixture of media such as benzene, xylene, trimethylbenzene, oils, acids, and bases, under conditions of a maximum temperature of 200 degrees Celsius and at atmospheric pressure, which type of level gauge is generally the most suitable? How about contactless radar level gauges? Sealing performance also needs to be considered, so that unpleasant odors don’t escape.
1. Is there really such an underground tank (with various benzene-based organic solvents, acids and bases, at a high temperature of 200°C)? Is that really the case? 2. If such a slot really exists, is it necessary to measure the liquid level? 3. If such a thing exists, go and find another level gauge first and try your best to fix it. 4. If you’re not able to fix it properly, or if you end up exhausted from spending all your energy and money on it, then you can come to me, Brother Pig. {:3_51:} I’m just a beggar who eats the leftovers. .
At higher temperatures, condensation on the radar antenna may affect measurements. A top-mounted magnetic flap level gauge can be considered, using the density of the medium with the lowest value.
First of all, 200C is impossible at normal pressure. A underground tank is probably the kind used for waste disposal, right? Radar sensors are a bit expensive; a float-based system should suffice.
At 200 degrees, how could benzene, toluene, and xylene still exist?
What is said on floor 5 is that using a top-mounted float/globe level gauge is an option, provided there is no scaling
Please note, there is benzene. Group 1 carcinogen. Therefore, the sealing performance must be taken into account. At an operating temperature of 200°C, benzene volatilizes into benzene vapor. Industrial benzene generally contains chloride ions, which are corrosive to 304 stainless steel; therefore, the material needs to be passivated. Forget about contact-type level gauges. Later maintenance is also troublesome, as one has to handle toxic and harmful materials. So it is still recommended to use radar!
I work in instrumentation, and I’m not very familiar with the specific process parameters. There is a process in wastewater treatment that seems to be regeneration, during which steam needs to be introduced, and the temperature required must be able to withstand up to 200 degrees Celsius. It’s not the actual temperature of 200°C!
Wastewater definitely needs to be distilled in order to separate the light components, thereby avoiding waste and pollution. Moreover, there are also standards for discharging industrial wastewater into sewage treatment plants. Some substances cannot enter sewage treatment plants.
If you have the money, use a radar level gauge; if not, use a top-mounted magnetic flap gauge.