Measurement of dual-flange level agents
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During the operation of a furnace, there is a slight blockage at the base, but it’s not complete; as a result, the liquid level rises. Some people say that this rise in liquid level is caused by the slight blockage at the base. In my opinion, regardless of how much the flange-type differential level gauge is blocked, as long as there is some flow through it, it can still display the accurate level. This is related to the even distribution of the liquid’s flow. Some people suggest that a slight blockage at the base of the level indicator is responsible for inaccurate readings; this blockage reduces the area subject to pressure, thereby increasing the pressure. I would appreciate it if fellow sailors could help analyze this issue for me. Thank you all in advance.
Micro-blockages affect pressure measurement; this issue is closely related to the performance of double flanges
Blockages have an impact on accurate measurement; with minor blockages, the actual liquid level does not change much, so there is no effect on the measurement； When the actual liquid level changes significantly, the measurement becomes delayed, resulting in inaccurate readings.
May I ask the original poster, what is a leveling agent? It’s a chemical agent used to indicate the liquid level, right?
In my opinion, based on the principle of double-flange level gauges, it is the flanges that are used to detect pressure transmission; logically, as long as there is no blockage, it should not have a significant impact on the measurement. It’s possible to check whether there are any problems with the diaphragm at the negative pressure side. In our installation, due to changes in the medium used, the diaphragms at the negative pressure side of the original double-flange level gauges kept getting damaged, so now we mostly use single-flange level gauges instead. You can also consult the equipment manufacturer.
Diaphragm boxes are used to measure pressure, primarily by detecting the hydrostatic pressure of liquids; as long as there is a slight leakage in the diaphragm box, it can sense this pressure. I wonder what factors are taken into account when evaluating the performance of Haiyou instruments? Hope Haiyou can give some guidance
Personally, I believe that as long as there is no blockage, it will not affect the liquid level measurement\ud83d\ude1c\ud83d\ude1c\ud83d\ude1c
In my opinion, mild blockages generally do not affect the measurement of liquid level; however, if the blockage expands and presses on the diaphragm, it may have an impact on the measurement
The leveling agent uses water at 200°C, eliminating the possibility of expansion.
Even slight blockages represent a potential hazard for accidents! Resolving the issue of minor blockages is of utmost importance; once that is taken care of, the disputes with colleagues will also be resolved.
Flange (diaphragm) type pressure tapping may also affect measurements in cases of blockage in the pipeline section. This is because the blockage may exert mechanical pressure on the diaphragm, especially at the gap between the diaphragm and the tube wall, which is often where blockages tend to form. In other words, although theoretically partial blockages in the pipes do not affect measurements, in practice, when such blockages occur, it is very likely that something is already mechanically interfering with the diaphragm