Проектирование

Pipeline telecontrol system

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

  • Flexibility

The system can be implemented on various hardware depending on project specifications and budget.

  • Compatibility

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.

  • Survivability

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

Структурная схема системы телемеханики межпромысловых нефтепроводов