I would like to ask the experts for their help in analyzing how to prevent impurity deposition on the side walls of differential pressure transmitters
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Gentle masters, I am working on a project that requires measuring the density inside a device, by calculating it based on the liquid level. However, in practical use, there is a very troublesome issue: the zero point of the differential pressure transmitter keeps drifting. Upon disassembly, it was found that a large amount of debris had accumulated at the flange, affecting the proper functioning of the diaphragm. Have any of the experts encountered similar problems? Are there any good ways to solve them? It seems the diaphragm can only be installed vertically again. The schematic is as shown in the image.
There’s nothing to do about it; such things happen. But a cleaning ring can be added to carry out regular cleaning by opening the cleaning holes and allowing fluid to be drained. Or use an insert-type diaphragm, columnar in shape, with the measuring part inserted directly into the tank
It’s unavoidable; it can be cleaned regularly
1. Flush with a rinsing solution; choose a clean liquid that is permitted to be added to the container. 2. Use an insert-type transmitter; having the diaphragm extend into the container can help alleviate the issue.
Measuring density? An oil-filled remote transmitter differential pressure gauge? It can’t measure density accurately at all :P It’s not that I’m underestimating it; even if you rotate its diaphragm 90° so that its ‘big flat face’ faces downward, down, down, even if there’s no fluid in contact with the diaphragm, that ‘big flat face’ will still float around, and as a result, the density measurement will still be inaccurate. . . If you don’t believe it, design a workwear piece and conduct a test! . If you don’t believe it, design a workwear piece and conduct a test! . If you don’t believe it, design a workwear piece and conduct a test! {:3_51:} A filled remote differential pressure gauge – it can measure density, but only for complete nonsense. .
Let me give you a tip; this is what I do to measure density, :lol. .
In those huge tanks, in those filthy channels – there are no proper density sensors at all; I’m totally tired of this already. . . . . . These past few years, I’ve been obsessed with measuring density in beakers, analyzing one sample per 2 seconds.
It’s absolutely impossible to determine density by reversing the liquid level! It’s not a viable approach; the management won’t believe these figures, so be cautious.
Blowdown pipelines can be added without affecting the process. Perform regular purging. If it can’t be added, then it has to be removed regularly for cleaning.