Question regarding level gauge
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The reaction vessel is open at atmospheric pressure, equipped with stirring; the temperature is around 95 degrees. The material tends to crystallize, and foam forms due to heating on the surface. Initially, a float level gauge was installed, but the internal float would often get clogged. Later, a blow-type level gauge was used; after the liquid was drained, 4 kilograms of instrument air were used for purging, but this approach was not effective, and the purge pipes often became clogged. I would like to ask the experts: is there any better way to measure liquid level?
This post was last edited by sdwfsgyykai on 2020-1-2 at 19:15. Yes, there are. It is a submersible level gauge with a gas collection and isolation pressure-sensing diaphragm that does not come into contact with liquid; it is designed to address various complex issues such as stirring, scaling, deposit formation, corrosion, and bubbling/boiling. Typical applications include the mixing pump rooms for desulfurization lime slurry, as well as the mixing tanks used for preparing fracturing slurries in the oil and gas industry. In such tanks, a pipe with a diameter of around 60 mm is first placed, after which the probe is inserted along this pipe, with the probe hanging inside the pipe – and that’s it. .
When the liquid is viscous, the 8-hole fluid guide cap on the probe can be unscrewed and discarded; it’s fine to throw it away as well
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Given these operating conditions, contact-based solutions can basically be ruled out; non-contact radar and similar technologies are likely to be ineffective as well. It is advisable to consult manufacturers of external sensors such as ultrasonic ones. Additionally, weighing instruments can be selected based on the specific operating conditions, while radiation-related options should not be considered until the very end
The blowing method is the most convenient. Since it is a measurement of a medium at relatively high temperatures, preheated gas should be used as the blowing gas. The blockage is caused by the low temperature of the blown-in gas, which leads to the solidification of the medium. By using a simple electric heater to heat the incoming gas and keeping the temperature below 100 degrees, testing can be carried out smoothly, right? This situation requires some thinking.
A single-flange level gauge might work; however, the level fluctuations could be somewhat significant during the halving process
You should also take a look at single-flange types: lol
Differential pressure level transmitters with extended flanges (the measurement accuracy depends on density changes; differential pressure level gauges are not suitable for applications involving variable densities). It is advisable to use such transmitters; pay attention to providing heat tracing at the jacket connections. (90°C is not considered a high temperature; these transmitters can be used in conditions of 230°C and -0.95 MPa, where crystallization is likely to occur.)
Single flange? ,,, Egg-shaped orchids… The eggs are purple; there’s something wrong with them. Only the orchids outside are affected {:2_42:}. There’s scaling in the liquid used, and what should be done if the diaphragm in the single-flange unit gets clogged? , how to cut it out for maintenance? Do we have to stop the machine and empty the tank until you disassemble it? The slurry is stirred, and the pressure shocks occur in pulses; what should be done if the readings from the single-flange sensor fluctuate erratically? Do you have a way to handle the measured values so that they remain smooth and stable? A single flange is not suitable for this application either.
I would like to ask: what should be done if, with the use of your company’s products for stirring liquid materials and under conditions of intermittent pressure spikes, the measurement values fluctuate erratically? Do you have a way to handle the measured values so that they remain smooth and stable? How did you handle it?