Tank Gauging System


CCR: Central Control Room

CSS: Combined Safety System

ESD:  Emergency Shutdown

EWS: Engineering Work Station

FAT:  Factory Acceptance Test

FIU: Field Interface Unit

I/O: Input/Output

LAN: Local Area Network

LER: Local Equipment Room

LPG: Liquefied Petroleum Gas

LTD: Level, Temperature & Density Probe

MMI: Man Machine Interface

MTBF: Mean Time Between Failure

MTTR: Mean Time to Repair

OWS: Operator Work Station

OIML: International Organization of Legal Metrology

PCS: Process Control System

PSD: Process Shutdown System

PSU: Power Supply Unit

RTD: Resistance Temperature Detector

SAT: Site Acceptance Test

SIL: Safety Integrity Level

TGS: Tank Gauging System

UPS: un interruptible Power Supply

VDU: Visual Display Unit

مهمترین استانداردهای مورد استفاده در طراحی سیستم TGS (ساخت، تست و راه اندازی)

  • API 551 Process Measurement Instrumentation
  • API 552 Transmission Systems
  • API 554 Process Instruments and Control
  • API6D Specification for pipeline valves (steel gate, plug, ball and check valves).
  • ASME PTC 19.3 Performance Test Code Temperature Measurement.
  • BS 3463 Specification for observation and gauge glasses for pressure vessels
  • BS 7671 Requirements of electrical installations. IEE wiring regulations.
  • BS EN 50262. Metric cable glands.
  • BS EN 837 Pressure Gauges: Selection and Installation Recommendations
  • ANSI B 16.5 Pipe flanges and flanged fittings.
  • IEC 60079 (all parts) Electrical Apparatus for Explosive Gas Atmospheres
  • IEC 60529 Degrees of Protection Provided by Enclosures (IP Code)
  • IEC 60751 Industrial Platinum Resistance Thermometer Sensors
  • IEC 61000 Electromagnetic compatibility
  • IEC 61520 Metal thermowells for thermometer sensors – Functional Dimensions
  • ISA S.5.1. Instrumentation symbols and identification.
  • ISA S.5.4 Instrument Loop Diagrams
  • ISA 1 Annunciators – sequences and specification.
  • ISO 9001:J994 or ISO 900 I:2000 (including design) Quality Management System requirements
  • ISO 9002: 1994 Quality systems – model for quality assurance in production, installation and servicing
  • NACE MR-01-75 Sulphide stress cracking resistant metallic material for oil field equipment.
  • OIML R85 Dynamic Automatic level gauges for measuring the level of liquid in fixed storage tanks

مدارک رفرنس جهت خرید و نصب سیستم TGS:

  • Instrumentation Control & Safety System Philosophy
  • General Instrumentation Technical Specification
  • Specification for Instrument Piping material
  • Specification for Instrument Cable
  • PID – propane, butane, condensate, pentane &… storage tanks
  • Mechanical data sheet
  • Site, Environmental and Utility Data
  • Painting Specification

مشخصات فنی مورد نیاز جهت خرید و نصب سیستم TGS:

  • a) Supply and Functional Specifications
  • b) TGS general architecture and cable block diagram
  • c) Data sheets and calculation notes (if applicable)
  • d) General Arrangement (Instrument, JB, Panels, etc.)
  • e) Instrument Hook-up drawings
  • f) Cable list and interconnection drawings
  • g) Instrument loop diagrams
  • h) Layout and Wiring Diagrams (Instrument, JB, Panels, etc.)
  • i) I/O list & assignment, Graphic displays drawings
  • j) List of data to be exchanged with the PCS (bus/memory mapping or hardwired),
  • k) Calibration Procedures
  • I) Hazardous Area Certificates
  • m) FAT & SAT procedures
  • n) Test Results
  • 0) Recommended spare parts for start-up and commissioning
  • p) Recommended spare parts for 2 years operation

گواهینامه ها و مدارک بازرسی لازم جهت خرید تجهیزات:

  • The conformity certificates.
  • The test and calibration certificates for all instruments.
  • The electrical hazardous area certificates (EEx, IS) for all instruments.
  • The material certificates.
  • The air pressure tests certificates.
  • The hydraulic pressure tests certificates (if applicable).