High-precision oxygen measurement
Retrofit of billing meters for oxygen at an oxygen production site
Billing meters at an oxygen production site
"Operating within a chemical complex, the different parties sometimes need to bill each other for products and utilities. If an oxygen plant is involved and large volumes are being traded, metering accuracy, reliability, and repeatability are essential.
Big and complex oxygen plants include numerous measuring points such as the high-temperature oxygen lines and headers with temperatures of ~ 250 °F. These points need to be monitored. Installing a traditional metering system would require a downstream factory shutdown, so with high costs and long execution timing, combined with its critical impact on the whole ecosystem, this doesn't present a feasible option."
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Product Solutions
The Flexim FLUXUS ST measures steam flow non-intrusively from the outside of the pipe, the portable acoustic measuring method proves to be impressive with its exceptionally high measuring dynamics, high sensitivity at very low flow velocities and independence to flow direction. Due to this large flow range (flow velocities up to 200ft/s), there is no need to reduce pipe diameter to fit an inline meter’s requirement of minimum flow velocity. Moreover, the non-intrusive measurement does not cause any pressure loss. The transducer mounts can be completely insulated to reduce any heat loss to the environment. FLUXUS ST has no moving parts. Therefore, FLUXUS ST is not subject to wear and tear and does not require any maintenance.
- Multi-functional - Measuring of liquids, gas, compressed air, thermal energy and steam flow.
- The ideal measuring device for complete energy efficiency tasks (e.g. according to ISO 50001)
- non-intrusive measurement for precise bidirectional, highly dynamic compressed air, gas, liquid and thermal energy flow rates
Accuracy
Measurement uncertainty of the measuring system (volumetric flow rate): ±0.3% of the measured value ±0.02 ft/s
Measurement uncertainty at the measuring point (volumetric flow rate): ±1… 3% of the measured value ±0.02 ft/s, depending on application
Measurement uncertainty at the measuring point (volumetric flow rate): ±1… 3% of the measured value ±0.02 ft/s, depending on application
Repeatability
±0.15% of reading, ±0.015 ft/s
Flow Channels
2
The FLUXUS G736 gas flow meter combines precision digital signal processing with the well-known advantages of non-intrusive ultrasonic technology: ease of installation, retrofittable design, high accuracy, and outstanding performance. With 4 ultrasonic transducers operating in reflect mode, 8 independent ultrasonic paths traverse the gaseous medium providing superior flow averaging of up to 4 planes of the pipe section. With this configuration, the G736 flow meter averages out crossflow profile effects and achieves optimum non-intrusive flow compensation for undesirable installation locations where insufficient upstream straight pipe proximity to bends, elbows or other adjacent instrumentation creates flow disturbances.
- Temperature compensated transducers - our transducers are automatically compensated for ambient temperature changes according to ANSI/ASME MFC-5.1-2011
- Easy installation without process interruptions - retrofittable and compact design
- Maintenance free - no moving parts, no wear and tear, gel/grease-free permanent transducer coupling pads
Fluid type
All gases
Accuracy
Measurement uncertainty of the measuring system (volumetric flow rate): ±0.3 % of reading ±0,005 m/s (±0.02 ft/s)
Measurement uncertainty at the measuring point (volumetric flow rate): ±1…2 % of reading ±0,005 m/s (±0.02 ft/s)
Measurement uncertainty at the measuring point (volumetric flow rate): ±1…2 % of reading ±0,005 m/s (±0.02 ft/s)
Repeatability
0.15 % of reading ±0,005 m/s (±0.02 ft/s)
