The company is installing (upgrade) automation systems, as well as, the service maintenance of existing systems.
 
 The automatic control system on the oil terminal apply to the following objects:

 

 - Pipelines filing petroleum products;

- Pumps for pumping petroleum products;

- Tanks;

- Gate valves and valves with electric actuator;

- Device filling of petroleum products in tank trucks;

 

The system is designed to:

 
-  Remote, continuous control and visualizing the level of oil in the tanks;
-  Visualization of process parameters (pressure, temperature, flow rate);
-  Fixation deviations parameters (pressure, temperature, flow rate) against given values;
-  Statistical data processing, development of the optimal mode of operation;
- Management of technological process - remote control of pumps, valves and valves with electric drives (including the loading of tank-vehicles), as well as in case of emergencies;
-  Graphical presentation of information on the state of the system, the ability to acknowledgment emergency situations, granting assistance and advice in a critical situation;
-  Formation of reporting documentation;
-  Reducing the negative impact on the environment, costs of production, identification of    preemergencies conditions before they happen;
-  Operational and commercial accounting of oil products in the sale of petroleum products;

 The system includes:

- Level sensors in tanks with the secondary devices;
- Temperature, pressure sensors and flow meters mounted on pipelines;
- Magnetic starters and frequency converters for electric motors pumps and electric valve actuators;
- Sensors for gas concentration control the territory tank farm with secondary devices;
- Control cabinets with controllers;
- Cabinets for secondary devices;
- Distribution cabinets, electrical  for the automation system with built-in electrical equipment
- Аutomated workstation for the operator of tank farm, organized on the basis of the personal  computer (РS). On the PC installed software  -SCADA system as well as software for the controller. For example for the SCADA system is used WinCC software integrated with the software STEP 7 for S7-300 controller, made in Siemens. The operator real-time receiving full information about the state of the equipment and process, as well as manages the process.
 
 
 
 

 System allows realizing (measurement, alarm and control)

 For pumps:

Measurement:

 - Pressure on the pump discharge;

 - The temperature for  liquid to the pump shaft seal;

 -The flow rate;

Аlarm:

- Minimum pressure on pump discharge;

- High temperature  bearings for pump ;

- The lack of liquid flow at the pump intake;

- When emergency shutdown of the pump;

Management:

- Remote on / off pump operator workstation;

Automatic emergency shutdown of pumps at:

- Lowering the pressure on the pump discharge below the set value;

- Raising the bearing temperature of the pump;

- Raising the temperature barrier fluid pump shaft seal;

- The lack of product on the pump intake (dry run protection);

- Exceeding the level of oil in the reservoir and  tankers;

- Increasing the concentration of gas in the tank farm;

- Fire on the tank farm;

 

For valves electrically powered:

Measurement:

- The percentage of valve opening;
- Pressure of the fluid in the pipe controlled by the valve installed on the pipeline;
- Temperature of the fluid from the heat exchanger, a controlled valve mounted on the coolant pipe;
- Fluid flow in a pipe controlled by the valve installed on the pipeline;

Alarm:

- Maximum closing (opening) of the valve;
- The critical temperature of the medium at the outlet of the heat exchanger at regulation of water flow valve;
- Critical pressure of the fluid in the pipeline, with a valve regulating the flow of fluid in the pipeline;
- Critical fluid flow in the pipeline, with a valve regulating the flow of fluid in the pipeline;
  Management:
 - Control of the valve when:
- Exceeding the level in the reservoir and oil tankers;
- An increase in the concentration of gas on the tank farm;
- Fire on the tank farm;
  Automatic PID control:
-  Temperature at the exchanger outlet by a valve which regulates the flow of coolant;
-  Pressure of the fluid in the pipeline by means of a valve which regulates the flow of   fluid in the pipeline;
-  The flow of fluid in the pipeline by the valve installed on the pipeline;
 

For the tank farm:

Measurement:

- The liquid level in the reservoir;

- Density of the fluid in the reservoir;

- Temperature of the fluid in the reservoir;

- The hydrostatic pressure of the liquid in the reservoir;

- Pressure vapor phase in the reservoir;

Alarm:

- Pre-emergency and emergency upper level of liquid in the reservoir;

- Lower pre-emergency and emergency levels in the reservoir;

- The critical temperature of the liquid in the reservoir;

- Critical pressure of of the vapor phase in the reservoir;

- The excess concentration of vapor in the area of the tank farm;

 

 

Devices for tank truck loading:

 

Measurement:
- The amount of oil poured into the tanker;
  Alarm:
- Minimal pressure on the pump discharge;
- High-temperature pump bearings;
- The lack of liquid flow at the pump intake;
- Emergency shutdown of the pump;
- Exceeding the level of the tanker;
- Ground water tankers;
- Loading position of the riser;
    Management:
- Pump (enable, disable);
- Valve on the device for the tank truck (open, close);
- Automatic emergency shutdown of pumps and closing the valve when:
- Lowering the pressure on the pump discharge;
- Raising the bearing temperature of the pump;
- The lack of product on the pump intake (dry run protection);
- Exceeding the level of oil in the tanker;
- Gas pollution occurs in the territory of a tank farm;
- Fire on the tank farm;

 

Objects of gas contamination control

           Gas contamination control subsystem consists of sensors and secondary gas control devices installed in the cabinet of secondary devices.
 Gas contamination control objects :
- Tank farm;
- pumping station;
- A device for draining (loading) railroad tank cars
- Devices for tank truck loading;
 Upon reaching 20% of gas contamination territory of the facility produced video sound signals to the appropriate interface of the operator workstation.
 Upon reaching 40% of gas contamination control object, formed teams to protect against accidents.

            Sensors monitor the gas placed on the perimeter bund of the tank farm on the inside on the rack at a height of 1.0 m from the planning mark of the earth's surface.
The distance between the detectors is less than 20 m.
On the railroad set one sensor for each two tanks.
The pumping station sensor-gas analyzers are set at a height of 1.0 m one sensor on a group of pumps, the distance from the sensor to the farthest point of the possible leak in this group of pumps should not exceed 4 meters horizontally. Sensors are placed in the working area of the premises in the places of temporary stay of attendants.