As the transducers are mounted onto the outside of the pipe wall, there are no moving parts and thus no interference with the flow in any way. Further, the system is virtually maintenance-free, thus significantly reducing costs and increasing the lifetime of the meter.
One of the challenges of measuring flare gas is the ability to measure extremely low flows in purging situations as well as high flow velocities during flaring events. FLUXUS® achieves an unrivaled accuracy and reliability at such variable conditions by emitting and receiving over 1.000 measurement signals per second and employing a standard setting digital signal processing algorithm. By use of an additional internal temperature compensation within the ultrasonic transducer according to ANSI/ASME standards, measurement drift is completely ruled out.
Features
- Highly accurate and reliable
- Unlimited turndown ratio
- Measures mass and volume flow rates,
- No pressure drop, no back pressure
- No maintenance – no moving parts
- Certified for operations in hazardous areas
- No calibration required during and after installation
- Rapid installation – meter is fully preprogrammed
FLUXUS® is a superior solution in comparison to insertion meter and also inline ultrasonic meter solutions as the transducers do not intrude into the pipe itself. Installation of the measurement system can be done with minimal process interference by inserting the pre-fabricated spool piece.
Why do this with a Polypropylene Spool? Though our meters are capable of measuring gas on steel pipes down to a minimum pressure of 3 bar – which no other clamp-on meter on the market achieves, it is possible to measure even at ambient pressure when using a polypropylene pipe.
One for All Applications
Due to their harmful effect on the atmosphere, regulating agencies require flow measurement for reporting fared and wasted greenhouse gases. Waste gasses can contain moisture and residual solids. Meters that are intrusive like ultrasonic and thermal can get fouled and become maintenance prone. The accuracy of thermal meters can be severely affected by coatings, moisture, and the gas composition. The non-invasive nature of FLEXIM‘s clamp-on meter makes it immune to these effects.
Another very important aspect of flare metering is turndown range. The FLUXUS® ultrasonic flare gas meter is truly non-invasive and offers a virtually unlimited turndown ratio – measuring from the lowest flow rates down to 0.01 m/sec and up to 35 m/sec with an unrivaled degree of accuracy and reliability.
Applications
- Flare and Vent Gas
- Mass Balance
- Gas Waste streams
- Leak Detection
- Acid Gas, Process Gases
- Process optimisation
- Wide velocity range and low pressure applications
Flare and Waste Gas Monitoring
Flare stack and feed lines are common in Oil & Gas production environments as well as at Chemical and Petrochemical plants. The flared or wasted gases can range from various natural gas compositions – including sour gas – to in organic gases such as nitrogen oxides (NOx), highly reactive volatile organic compounds (HRVOC) and other greenhouse gases. FLUXUS® measures accurately and highly reliably over a huge turndown ratio at temperatures up to 93 °C and internal pressurization up to 10 bar.
Pressure Relief Valve Flow Measurement
Installed downstream of relief valves feeding into the main flare header, FLUXUS® is the ideal solution to accurately and reliably indicate flow of flare gas and monitor “blowdown” events as well as potential leaks.
