Regarding the impact of DCS operations on pumps
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As the title suggests: During my inspection, I went to the pump area and heard noise inside the pump chamber of one of the pumps; there was also slight vibration. The pressure was fluctuating around 0.9 MPA, and after a while it rose to 1.3 MPA, at which point the noise and vibration disappeared. I then spoke with the operators on shift, who said that this was normal and that there was no problem with the pump. We discussed whether this might be related to DCS operations, as the control valve was set to automatic mode, with a range of 0-100
As the flow rate increases, the pump is prone to cavitation, resulting in vibration and noise. Look at the pump’s performance curve and determine its operating point based on the pressure difference between the inlet and outlet.
I personally think it’s also due to an increase in traffic
It is related: if the opening degree of the control valve is too large, the flow rate increases, the head decreases, or vacuum conditions occur; or cavitation happens due to low pressure inside the pump.
It has a lot to do with traffic; there are characteristic curves