VISCOSITY MEASUREMENT -
Pipeline Transporation -
Jet Fuel, Diesel, Gasoline
SUMMARY
In the pipeline transportation of liquid fuel, it is crucial that the flowing material be identifiable, and that changes in the type of product flowing be recognized immediately. The VISCOLINER® has proven itself a useful tool in detecting product interfaces and controlling of shipment of products to the correct destination. In process verification increases output to pay off the project.
INSTALLATION
The VISCOLINER® transducer is mounted in a bypass lineA via an ANSI flange at a product pumping station. The VISCOLINER® transmitter is mounted in the control station up to 1000 feet from the metering point.
OPERATION
The transducer detects product interfaces by monitoring viscosity. The VISCOLINER® then routes the product, by controlling valves, pumps, etc., to its proper destination. It also has the ability to detect impurities such as water. The VISCOLINER® is capable of acting as a stand-alone controller or as an integral part of a process control system. Check instrument calibration once a year.
TEST
This application was proven at a liquid fuels pumping station with the VISCOLINER® installed as above. Three fuels were alternately pumped through the line – D-45 diesel, R-87 gasoline and JFA jet fuel. Each product was pumped for approximately 1000 barrels before the next product was introducedB. In each case, the presence of new product was detected around the 1000 barrel mark and the next product was fully established by 1200 barrels (i.e., 200 barrel product interface). These findings were immediately confirmed by flash tests on site.
TYPICAL OPERATING CONDITIONS
Temperature: 0°F to 120°F
Pressure: ATM to 150 psi
Viscosity:1 to 100 cP
VISCOLINER® SPECIFICATION
Temperature: -40°F to 850°F
Pressure: Vacuum to 5000 psig
Viscosity: 0.1 to 1,000,000 cP
Materials of Construction: 316SS
NOTES:
A - Transducer may be mounted directly inline in any specified ANSI flange. However, the transducer cannot be mounted where pigs might be run.
B - Flow rates were varied from 200 to 2800 barrels/hour with no change in instrument sensitivity.
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