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Systems and methods to monitor pump cavitation

  • US 9,255,578 B2
  • Filed: 07/31/2012
  • Issued: 02/09/2016
  • Est. Priority Date: 07/31/2012
  • Status: Active Grant
First Claim
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1. A method comprising:

  • monitoring a pressure parameter and a vibration parameter associated with an asset in an operating process unit;

    calculating a manipulated pressure value based on the pressure parameter, wherein calculating the manipulated pressure value based on the pressure parameter includes calculating a standard deviation value of a set of pressure values;

    determining, based on the manipulated pressure value, a state of cavitation associated with the asset;

    in response to determining the state of cavitation is a pre-cavitation state, triggering an alarm;

    calculating a manipulated vibration value based on the vibration parameter; and

    changing a severity level of the alarm based on the manipulated vibration value.

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