Automated control system for the Pumping Station No.18

Customer: Kirishi Oil Refinery
General Designer: Lengiproneftechim (Saint-Petersburg)
Control system designer: SPIK SZMA

Automation objects:

• industrial storm & sewage pumping stations, receiving & separating tanks and oil separation;
• circulation pumps in separation tanks;
• inter-shop pipelines.

Control system specification: DCS based on the Toshiba PLC, V2000 Series and OIS-DS with software. The control system includes sensors and indicators from EMERSON PROCESS MANAGEMENT, VALCOM, VEGA, and control valves from DVCD Masoneilan Russia.

Functionality:

1. Process control:

   • control valves;
   • pumps & fans;

2. Process Monitoring:

   • temperature in separation tanks;
   • pressure at the discharge of the pumps;
   • ventilation systems plant air pressure in pressure;
   • volumetric calculations for: - input steam;
     - oilslime;
     - removed oil;
     - drains to reception and separation tanks;
     
   • level of drains and oilslime in reception and separation tanks;
   • level of drains in drainage pits;
   • drive motor currents for the high voltage pumps;

3. Audible and visual alarming:

   • process parameters;
   • gas contamination in the pumping station and manifold plant;
   • drop in water temperature decline the output of the ventilation system heaters;
   • pump motor’s stator temperature.

4. Automated Emergency Shutdown System and Process Equipment Control:

   • pump control to prevent emptying the receiving tanks and to prevent overfilling the separation tanks;
   • level control in the receiving tanks;
   • utilities steam pressure control;
   • On/Off drain pump control for drain pit level;
   • On/Off emergency fan control;
   • gas contamination audible and visual alarming;
   • operator manual pump control;
   • operator manual valve control and emergency fans.

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