Does installing a orifice plate on a vertical pipeline affect flow measurement?
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The people at CNOOC always say that the flow measurement is inaccurate – the meter resets after it stops working, and the trend in flow rates seems normal. But once the meter starts working again, there’s no flow data at all. I keep checking every day; it’s annoying. Even after replacing the transmitter, the problem persists. It can’t be that the transmitter is broken. Now I can only suspect an issue with the orifice plate. Maybe it isn’t installed properly, but upon inspection on site, it was indeed installed. Could it be installed in the wrong direction? But the handle on the orifice plate is too short to allow for such a check Or is it because the orifice plate is installed on a vertical pipeline? ? ? Please ask an expert for help! ! !
The orifice plate is installed on a vertical pipe, without affecting the measurement. Carefully check whether the installation of the orifice plate and the pressure difference meet the requirements.
Check whether the wrong model was selected, resulting in it not meeting the measurement requirements
Orifice plates are commonly installed on vertical pipelines, with flow from bottom to top, which has no impact on flow measurement.
The orifice plate can be installed on a vertical pipe; flow from bottom to top is possible. I think first you need to check whether the orifice plate is installed backwards ； Second, check the calculation sheet to see if there are any issues with the parameters specified.
A orifice plate can be installed on a pipeline to measure what the medium is Is it because the pressure tapping hole is blocked? Bubbles filling the pressure tapping tube also occur when the medium being measured is a liquid. In such cases, it is necessary to determine whether the transmitter is installed at a higher or lower height than the pressure tapping point; one can first try to remove the waste gas to see if that helps.
If the orifice plate is installed in the wrong direction, it has no impact on the measurements. Whether the flow direction is correct matters; installing the orifice plate incorrectly leads to inaccurate measurements, but there will be no leakage