Introduction
Pipeline telecontrol system is designed for control and
monitoring of process equipment consisting of control and
monitoring station, shutoff valves units, electrochemical
protection station, chambers of startup and reception of cleanup
and diagnostic facilities, line dividers and route power line
switches.
Structure
Pipeline telecontrol system has three-level architecture.
Control room level:
- I/O servers supporting redundancy;
- Dispatcher and engineer workstations;
- Communication and office equipment.
PLC level:
- Programmable logic controller,
- Intrinsically transducers,
- Uninterrupted power supply system,
- Surge and lightning protection devices.
Filed device level:
- Sensors and actuators,
- Gas contamination, scraper crossover, chamber flooding and
spillage annunciators and other,
- Motor operated valves, reclosers, repress pumps,
- Fire and security alarm and access control subsystem,
- Container house utility subsystem.
Main Features
- Collecting data from managed sites concerning processing
equipment and process parameters state, including data for leak
detection system work;
- Control action on controlled sites (shutoff valves control,
remote regulation setting);
- Availability and quality control of route power line
voltage;
- Security alarm support of sites (breaking of wells, control and
monitoring stations, cabinets);
- Visualization of product transportation process;
- Information and alarm messages outputting in the case of normal
pipeline operation mode failure;
- Logging of process parameters change;
- Equipment diagnostics;
- Reports generation.
Benefits
The system can be implemented on various hardware depending on
project specifications and budget.
Open standards ensure compatibility with many equipment and
local automation systems. The system provides many options for
communication: physical communication lines, voice-frequency
channels, radio channels, fiber-optic, GSM and satellite channels
via RS-232, RS-485, Ethernet interfaces.
Employment of rugged system components allows increasing overall
system availability and reliability. RTUs can be supplied in
container houses. The sheltered RTUs are designed for remote areas
providing protection from unauthorized access and vandal
proofness.
Block Diagram
