Fluctuations in Chuanyi vortex flow meters
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Our company has a vortex flow meter, made by Chuanyi, which is used to measure water flow. Most of the time it functions properly, with a stable flow rate and a reasonable installation location. However, sometimes there are sudden fluctuations from normal values to the full scale; this process takes only a few minutes. It has been confirmed that there is no increase in water usage, and there are no significant vibrations in the pipes. By examining the trend curves of pipeline pressure and flow rate, it was found that during the periods of fluctuation, the pipeline pressure was lower than the normal level; once the pressure returned to normal, the flow rate also returned to normal. How should this be explained from a process engineering perspective?
Why isn’t an electromagnetic flowmeter used for measuring water?
I don’t have the final say in matters like product selection; I didn’t know either that it was the manager who chose vortex flow meters for measuring water flow
Is the measured flow rate compensated for by pressure?
The poster mentioned that the problem arose due to changes in pipeline pressure; I think it might be caused by fluctuations in the process system or by air entering the system while the pump is running, which results in air present in the pipelines and thus leads to instability in the flow meter.