RBUF200 is a gas ultrasonic flowmeter developed by RB Instruments. Based on the Transit-time principle of ultrasonic wave, one or more pairs of ultrasonic transmitting and receiving devices are installed in the direction of the upstream and upstream of the medium respectively. The gas flow rate in the flue is calculated through the time difference of ultrasonic wave transmission, and the volume flow rate of the flue gas is calculated according to the cross-sectional area of the flue duct. This flowmeter adopts the non-contact measurement method, which can effectively solve the measurement difficulties such as unstable flow field and uneven flow velocity distribution in the pipeline, and can maintain continuous real-time stable monitoring in the harsh environment of high temperature, high humidity and high dust during the flue gas discharge process.
The RBUF200 series ultrasonic flowmeter is primarily used in online continuous monitoring systems for flue gas. It is employed for boiler and chimney flue gas flow rate and velocity detection, as well as for measuring carbon emissions and VOCs emissions from flue gases after treatment. Additionally, it finds applications in industries such as power generation, cogeneration, steel, coking, chemical, cement, glass, and paper, for flow rate measurement. It is suitable for operating conditions with short straight pipe sections and high temperature, low flow rates (5m/s).The model standard RBGF200_XX, where the last two letters represent specific parameters. The first letter indicates the diameter of the flue, with 'S' for small, 'M' for medium, and 'H' for large. The second letter indicates the temperature of the flue, with 'C' for normal and 'H' for high temperature.
RBUF200 Gas Ultrasonic Flowmeter Working Principle:
The device modulates the pulse signals of the ultrasonic transducer, generating square wave pulse signals of a certain frequency, and boosts them through the circuit board. The pulse signals are then sent to the transmitting transducer via corresponding connecting cables. After the transmitting transducer emits the signals, they are received by the receiving transducer on the opposite side. Upon reception, the signals undergo amplification, filtering, noise reduction, and extraction processes to refine suitable signals for time difference calculation. Based on the time difference, the velocity of the fluid inside the pipeline can be calculated. The formula for flow rate calculation is as follows:
RBUF200 Flue Gas Ultrasonic Flowmeter Features:
RBUF200 Flue Gas Ultrasonic Flowmeter Specification:
|
Measurement Principle |
Ultrasonic Time-Difference Method(Transit-time) |
|
Display |
High-Resolution Touch Screen Display |
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Measurement |
Minimum Flow Velocity 0.1m/s, |
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Maximum Flow Velocity 40m/s_x0007_ |
|
|
Measurement Accuracy |
≤±2.0% |
|
Output Interface |
4-20mA.DC, Relay Dry Contact Type Passive Alarm Output |
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Applicable Flue Diameter |
0.5m~15m |
|
Communication Method |
RS485 Modbus-RTU Protocol (Default) |
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Power Supply |
AC220V±10% 50/60Hz, Power Consumption <30W (without cooling fan), 0.2KW (per cooling fan)_x0007_ |
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Operating Medium Temperature |
-40°C~+300°C_x0007_ |
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Operating Environment Temperature: |
-30°C~+60°C
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|
Probe Material |
SS304+PTFE (2507 optional), |
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Probe Protection Level |
IP65, Pressure Resistance Level ≤1MPa_x0007_） |
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Probe Length: |
Standard 0.5m, 1.0m, 1.2m.(adjustable for different thickness of flue)_x0007 |
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Instrument Weight |
Probe Net Weight 8 Kg, Local Control Cabinet Weight 20 kg |
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Instrument Lifespan |
>24 months |
|
Installation Method |
Oblique Penetration, Standard DN100 Flange Installation_x0007 |
RBGF200 Flue Gas Ultrasonic Flowmeter Model Selection:
RBUF200 Flue Gas Ultrasonic Flowmeter Applications:
The ultrasonic flowmeter can be widely used in the flow rate monitoring at discharge outlets of pollution sources, such as petroleum, coal, electric power, natural gas, steel, building materials, chemical, petrochemical, textile, nonferrous metal, waste incineration etc.
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Application Industry |
Application Process |
Application Location |
|
Steel Industry |
- Sintering machine flue gas desulfurization and denitrification flue |
- Desulfurization and denitrification flue |
|
Coking Industry |
Coke oven |
Coke oven chimney |
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Petrochemical Industry |
Oil refining process |
- Exhaust gas outlet |
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Cement Industry |
- Rotary kiln head |
- CEMS outlet |
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Glass Industry |
Glass furnace |
- CEMS outlet |
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Waste Incineration |
- Solid waste incinerator |
- CEMS outlet |
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Power Generation Industry |
- Desulfurization and denitrification flue |
- Flue |
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Ceramic Industry |
Kiln |
- Kiln exhaust gas |
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Carbon Black Industry |
- Desulfurization and denitrification exhaust gas treatment |
- Chimney exhaust gas |
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VOCS Emission |
- |
VOCS outlet |
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