Metering Station1

7/28/2019 Metering Station1

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B Y PA N K A J B E L A D I YA G E T- I N S T. ( 9 0 1 4 3 )

Metering StationNew skid of GSPL



Gas metering stations are designed for simultaneous,continuous analysis of the quality and quantity of natural

gas being transferred from terminal.Monitor & manage the natural gas supply in pipes.Measure the flow of gas along the pipeline with theminimum error.

Employ specialized meters to measure natural gas as itflows through the pipeline without impeding itsmovement.

Standards for Measurement: AGA 8: Natural Gas Compressibility AGA 9: Measurement of Gas by Multipath USM AGA 10: Measurement of Speed of soundGPA 2172/2145: Heating Value calculation

Purpose of Metering



New Skid Architecture



New Skid P & ID07. P & ID.pdf

http://localhost/var/www/apps/conversion/tmp/scratch_4/07.%20P%20&%20ID.pdf

http://localhost/var/www/apps/conversion/tmp/scratch_4//Dhjpllcluster/officers/pbeladiya/GSPL%20Metering%20Station/07.%20P%20&%20ID.pdf


http://localhost/var/www/apps/conversion/tmp/scratch_4/07.%20P%20&%20ID.pdf



Ultrasonic Flow Meter (USM)

The SeniorSonic is designed forcustody transfer and otherapplications requiring highaccuracy.It measures the flow rate which isdependent on the average fluid velocity & cross sectional area of meter.The basic principle is that soundtraveling with fluid flow will travelfaster than sound traveling againstthe flow.The transient difference is a function

of fluid velocity.



Ultrasonic Flow Meter (USM)



Tag FT1880,1890

Make/Model No. Daniel/3400-HA00-451751

Type Senior Sonic Intrusive, Multipath

Line Size 12”

Design/Op. Flow 14150/640-13000 ACMH

Design/Op. Pressure 93.8/60-90 barg

Design/Op. Temperature -5 to 60 /5.6-6.6 Deg. C

Design & Construction AGA-9, ASTM A352 LCC (-46° C) body

Accuracy +/- 0.3% overall including Lab inaccuracy

Supply 24 v DC / 15 watt

Outputs • RS 232/485 – 2 nos. for flow and Diag.• Pulse O/P – 2 nos.• 1 Ethernet port

PROFILER • 12’’ 600# Sch 80 Flow Profiler, MOC SS316

USM Specifications:



Pneumatic Actuator

Cylinder

Piston

Scotch-Yock Spring

Instrument Air Supply



Tag MOVP 1880,1881,1890,1891Make/Model no. Flowserve RG318SR5CNGGE00

Type Single effect, Spring return & pistontype, Scotch Yock

Valve Position on Failuer Fail Close type

Stroke time 1 inch/second (adjustable upto 12seconds)

Operating Temperature 10-45 Deg. C

Operating Pressure 4-6-9

Material of Construction CS for housing,cyl-piston & Alloy steel for Spring

LIMIT SWITCH : P & F Make, Model: NJ2-V3-N,Rating: 24V DC

SOVs: ASCO Make, Model: NF8327A002,

Operating Voltage: 110V DC

Actuator Specifications:



Gas Chromatograph

Fig:- Model 500 Analyzer Functional Block Diagram



GC Controller (2350A) Functions

Valve Activations

Timing AdjustmentsStream SequencesCalibrationBaseline Runs AnalysisStream/Detector Assignments Alarm & Event ProcessingDiagnosticsComputation and

ChromatogramReport GenerationInterface with Other Device

10 Analog I/Ps: all 4-20mA

16 Digital I/Ps:5 to read ModBus Add,5 streram flow alarms22 Digital O/Ps:

6 Analyzer control,8 Driver outputs for solenids5 alarms3 front panel indicator

• Communication: RS-232, RS-422 or RS-485



The Analyzer Detector

Fig:- Schematic Diagram of Analyzer Detector Bridge



Chromatogram

Fig:- Detector Output during Component elution

1. Detector Bridge balanced.2. 1st component begins to

elute3. Peak Concentration of 1 st

Component4. 2nd Component begins to

elute5. Peak Concentration of 2 nd

Component

•

Thus, It separates and measures the individual componentsof gas. (C1, C2,C3, IC4, NC4, IC5, NC5, H2S, COS, TotalSulfur)

• It will calculate Heating value, Specific gravity,compressibility, Wobbe index based on composition.



• FloBoss S600+ Flow Computer Specifications

Processor ColdFire MPC8313 333 MHz with integral

floating point processorOperating System Linux

Memory Flash 256 MB, DRAM 128 MB, SRAM 4 MB

Data Logging The S600+ supports up to 333 days of 10stream reports where monthly, weekly, daily,and hourly reports are each archived asindividual reports.

Communications Configuration Port (located on the bottom of the front panel)

Ethernet (NTWK1, NTWK2)

RS232 (COM3, COM4)

RS422/RS485 (COM5, COM6, COM7)

RS485 (COM9, COM10, COM11, COM12)

USB



• FloBoss S600+ Flow Computer Specifications

I/Os:

Analog Inputs 1 to 5 V, 0 to 5 V, 4 to 20 mA, or 0 to 20mA, opto-isolatedFrequency/Density Inputs dc coupled, opto-isolated, 0 to 10 kHzPulse Inputs — Flow Dual pulse or single pulse train, opto-

isolatedPRT (RTD) Inputs 4-wire only connection using Pt 100

transducers, opto-isolated.HART (P188) Module 12 channels. Each channel can be

configured for point-point or multidropcommunications.

Supply Voltage 20 to 32 Vdc, 30 Vdc nominal, 48 W maximum



Metering panel CP-001(Front View)

FC 1880,1890

Supply Indicating Lamps

Eth. Port

2350A Controller



Metering panel CP-001(Right View)

DI,AI barrires

Sockets

FO to Eth Converter

Relays



Metering panel CP-001(Left View)

Ethernet Switch

S/E converters

Power Supply



PLC Panel

Series 90-30 Pow Supp

CPU 372 PLUS

Genius Bus Control

Comm. For GSPL,DCs

Modbus Master SM for FC,GC

COMMTB: GSPL scada,DCS, FC, GC



• Loop Drawing (PT,TT-1880)



• Loop Drawing (FT-1880)



• Loop Drawing (ZSH,ZSL-1880)



• Loop Drawing (SOV-1880)



• Loop Drawing (SOV-1881)



• HMI (Proficy iFIX)



Daily Report Sample0278_001.pdf

http://localhost/var/www/apps/conversion/tmp/scratch_4/0278_001.pdf



http://localhost/var/www/apps/conversion/tmp/scratch_4/0278_001.pdf

Metering Station1

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