First CVA equipment implemented at trunk pipeline facilities

02 February 2011

In order to increase the reliability of the oil pumping units (OPU), Prosoft-Systems developed and implemented the CVA vibration control equipment at four trunk lines and one supporting OPU. Its primary task is to continuously monitor the mechanical condition of the OPU.

The CVA vibration control equipment includes:

  • a CVA controller
  • IVD-3 vibration sensor (measures the vibration velocity RMS)
  • IVD-2 vibration sensor (measures rotor displacement)

The CVA equipment makes it possible to:

  • Receive the measured vibration velocity RMS via the RS-485 interface from the IVD 3 sensor
  • Receive the measured value of the rotor's axial displacement via the RS-485 interface from the IVD 2 sensor

Prosoft-Systems manufactured all the equipment components.

  • Displays the current technological parameter values obtained from the primary sensors (IVD 2 and IVD 3)
  • Tracks the threshold limit parameter values
  • Outputs “dry contact” discrete signals when the thresholds of the measured parameters are reached
  • Maintains event logging, etc

All algorithms for the protection of pumping units are made in accordance with RD-35.240.00-KTN-207-08 and implemented inside the controller "CVA":

  • Eemergency and warning thresholds
  • Time delays
  • Operation in transient mode
  • Operation in off-nominal mode, etc

The CVA controller allows the pump to transition from the nominal mode to the off-nominal mode, and from the stationary to the non-stationary mode by either the input discrete signal or the input signal through the code line (RS-485 and/or the Ethernet).

All measured parameters are transmitted to the process automation system via the RS-485 interface and/or the Ethernet.

The controller design was made in the Euromechanics 6U-size format with the placement of 4 controllers in one 19-inch crate.