FIELD: oil producing industry; oil trunk pipelines.
SUBSTANCE: according to proposed method, current values of pressure at inlet and outlet of each pumping unit and active power of their drive motors are transmitted by telemechanical system to dispatcher station of oil pipeline system. Pressure at inlet of each pump is measured by pressure pickups. Consumed active power is measured by electric power meters with indication of number of operating pumping unit. Output signals from meters are supplied through telemechanical system to dispatcher station where, basing on them. Power of each pumping unit acting of shaft of pump, pressures created by each pump, flow coefficient of pumping unit and service coefficient of pumping unit indicating deviation of actual operating characteristics from nominal one and volumetric rate of liquid created by pump are determined. Basing of mean value of rate, daily data are analyzed to real continuous stationary operating conditions of pumping unit in four hours minimum at fluctuation of rate within three per cent of mean value. Basing on values, thus obtained, mean base and current values of efficiency of pump are found, and current values are compared with base values. Obtained current values are sent for storing in computer for use at continuous analyzing of condition of complex, for which purpose curve of rates and efficiency under current operating conditions of pumping unit are plotted for all pumping stations at lapse of time under checking. Data, thus found, are compared with previous values kept in computer storage both, for each pumping unit and adjacent pumping stations and, if these values for any pumping unit operating under rated conditions are lower than base values, decision is taken to change over operating pumping unit to other one with subsequent inspection and repair.
EFFECT: provision of in-time revealing of possible deviations from preset operating conditions of pumping unit, prevention of ineffective operation and emergency disconnections.
5 dwg
