B-F flare gas ultrasonic flowmeter adopts all-metal ultrasonic transducer. It is suitable for measurement in a variety of harsh environments. The turndown ratio is large. It can measure hydrocarbon gas, exhaust gas and other gas containing impurities and humidity.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Large turndown ratio and wide flow velocity measurement range;
Suitable for multi-component metering. The gas flow meter is not affected by changes in composition.
Suitable for gas flow measurement with rapid changes in composition.
Measuring velocity and volume flow;
It can measure pulsating flow and can measure in both directions;
Measuring hydrocarbon gas;
Suitable for gas containing impurities, damp and dirty, corrosion resistance.
No routine maintenance is required.
It can be installed and maintained online.
Wide range ratio, wide applicable flow range. Can detect small leaks.
The gas flow rate in the flare system is complex and changeable, and the gas composition is often a mixture of multiple different gas sources. The measured fluid has the characteristics of complex and changeable composition, obvious pressure and temperature fluctuation, and wide flow range. Using B-F to measure this type of fluid is excellent.
The B-F flowmeter has no moving parts. The probe is made of all metal material. Can withstand the corrosive environment of flare gas. Stable and durable. Low maintenance.
B-F Ultrasonic Gas Flow Meter Technical specifications
0-1.6MPa (Higher pressure is optional. The default gauge pressure sensor, if you need an absolute pressure sensor, you need to customize)
Measuring direction
One-way measurement (two-way need to be customized)
Measuring medium
Hydrocarbon, natural gas, coal gas and other media containing water and impurities
Measurement requirements
Medium temperature
-20℃~60℃ (Limit temperature -40℃~85℃)
Ambient temperature
-25℃~ +55℃
Signal, communication and other functions
output signal
4-20mA, frequency (pulse)
Communication Interface
RS-485
Operating Voltage
24VDC
Power consumption
≤3W
data storage
18 months
Front and rear straight pipe
10D before, 5D after
Use operation
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Sino-Inst’s Flare Gas Ultrasonic Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Sino-Inst’s Flare Gas Ultrasonic Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
B-D Ultrasonic Gas Flow Meter is a pipe section flowmeter. Use mono mode. The sound channel design of the ultrasonic transducer takes into account the requirements of various working conditions. Match the rectifier of corresponding caliber. It can be used for high-precision measurement of pipe sections smaller than DN200.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
No moving parts, no pressure loss, reducing use and maintenance costs;
The starting flow rate is small. Suitable for measuring low-speed flow;
Large turndown ratio, turndown ratio 1:125, measuring flow rate from 0.2-25m/s;
The metering is not affected by the composition. Suitable for measuring multi-component gases or gases with changes in composition;
The influence of dust and moisture is small. Dirty gases such as coal gas and flue gas can be measured;
Proprietary algorithm, which can adapt to the measurement occasions with rapid changes in components, rapid changes in temperature, pressure, and humidity;
Can measure pulsating flow and bidirectional flow;
Unique operating software design combines waveform debugging and parameter setting. Convenient on-site operation and maintenance;
Unique maintenance alarm can realize early warning of maintenance time. Provide product stability.
The all-metal ultrasonic transducer has strong anti-interference ability, dirt resistance and long service life.
B-D Ultrasonic Gas Flow Meter Applications
It is suitable for the measurement of alkanes such as natural gas, coal bed methane, mine gas, liquefied petroleum gas, methane, ethane, propane, butane, etc.;
It is suitable for the measurement of gas such as biogas, biological fermentation gas (water-containing impurities), and biomass fuel gas;
Suitable for the measurement of air, oxygen, nitrogen, argon, helium, nitrogen, and other non-corrosive gases;
It is suitable for the measurement of flare gas, tail gas, landfill gas, and water treatment aeration;
It is suitable for the measurement of helium, ammonia, acetylene, and other gases;
B-D Ultrasonic Gas Flow Meter Technical specifications
Technical specifications
Parameter category
Specifications
structure type
Direct type
Applicable caliber
DN50-DN200 (other calibers can be customized)
Number of channels
Mono
Flow rate range
0-25m/s
level of accuracy
1.5%, 1.0%
Resolution
0.001m/s
Flow cutoff point
Qt=0.1 Qmax
Repeatability
Class 1.0: Qt-Qmax 0.2%; Qmin-Qt0.4%
Work pressure
Class 1.5: Qt- Qmax 0.3%; Qmin-Qt 0.6%
Measuring direction
0-1.6MPa (Higher pressure is optional. The default gauge pressure sensor, if you need an absolute pressure sensor, you need to customize)
Measuring medium
Single way measurement (two-way need to be customized)
Measurement requirements
Medium temperature
-20℃~60℃ (Limit temperature -40℃~85℃）
Ambient temperature
-25℃~ +55℃
Signal, communication and other functions
output signal
4-20mA, frequency (pulse)
Communication Interface
RS-485
Operating Voltage
24VDC
Power consumption
≤3W
data storage
18 months
Front and rear straight pipe
10D before, 5D after
Use operation
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Explosion protection
Explosion-proof grade
Ex d mb IIC T5 Gb,
Protection level
IP65
B-D Ultrasonic Gas Flow Meter Flow Range
Nominal diameter
Turndown ratio
Q max
Q min
Metric system（mm）
British system (inch)
（m³/h）
（m³/h）
50
2”
1:80
160
2
80
3”
1:80
400
5
100
4”
1:80
640
8
150
6”
1:80
1300
18
200
8”
1:80
2200
30
Nominal diameter
Turndown ratio
Q max
Q min
Metric system（mm）
British system (inch)
（m³/h）
（m³/h）
50
2”
1:150
212
1.4
80
3”
1:125
450
3.6
100
4”
1:125
640
5.0
150
6”
1:125
1600
13
200
8”
1:100
2260
23
B-D Ultrasonic Gas Flow Meter Straight pipe requirements
a) When there is no rectifier. It is recommended that the length of the front straight pipe is greater than 10D. The length of the rear straight pipe is greater than 5D.
b) With a rectifier. It is recommended that the length of the front straight pipe section is greater than 5D. The length of the rear straight pipe section is greater than 3D.
c) When there are noise sources such as pressure regulating valves on site. A noise reduction pipe section should be installed between the flowmeter and the noise source.
Precession Vortex Gas Flowmeter, like vortex flowmeter, is a velocity flowmeter. The cost performance of the intelligent precession vortex flowmeter is higher than vortex flowmeter. The intelligent precession vortex flowmeter can only measure gas. Precession Vortex Gas Flowmeter can be made into an integrated temperature and pressure compensation. And can measure various gases. Such as compressed air, oxygen, biogas, natural gas, coal gas, etc.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Sino-Inst’s Ultrasonic Gas Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
The B series Ultrasonic Gas Flow Meter adopts the principle of ultrasonic time difference.
Ultrasonic Gas Flow Meter uses the superposition relationship between the propagation velocity of the ultrasonic signal in the fluid and the fluid velocity for measurement. Ultrasonic Gas Flow Meter-B series is mainly for gases with a single composition such as oxygen, nitrogen, argon, helium, etc. There are also gases such as flare gas and natural gas. The price/performance ratio is very high.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
D: Short connection F: Torch gas plug-in installation
Application scenarios and installation methods
2
S：Single Channel
Number of channels
3
DN50 DN80 DN100 DN150…..DN5000
caliber
4
A: Helium, nitrogen, neon, argon, air and other non-corrosive gases; B: Coalbed methane, natural gas, oil and gas, ethanol boil-off gas, methane, ethane, propane, other alkanes and olefin gases. C: Gases such as flue gas, flare gas, exhaust gas, tail gas, exhaust gas, etc. D: Blast furnace gas, converter gas, coke oven gas, carbon monoxide, mine gas and other gases. E: Biogas, fermentation gas, biomass gas, landfill gas and other gases.
Application field
Example: B-FS600C represents B flare gas flow meter. Measuring pipe section DN600. Measuring C gas.
According to the application scenario. B series gas ultrasonic flow meters are divided into B-D type and B-F type.
The Z series rectifier can effectively improve the upstream and downstream measurement conditions of the gas ultrasonic flowmeter. Improve the accuracy of the measurement structure. The Z series rectifier adopts a tube segment honeycomb rectifier. It is connected with the flow meter and the pipe section through a flange. The rectifier plate is made of stainless steel. The meter head is made of stainless steel or cast steel.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Sino-Inst’s Ultrasonic Gas Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
A-J is a plug-in gas ultrasonic flowmeter on the same side. Use single or dual channel mode. The sound channel design of the ultrasonic transducer takes into account the requirements of various working conditions. It is suitable for measurement in a variety of harsh environments. Suitable for low flow rate measurement. Suitable for low-frequency pulsating flow measurement.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Explosion protection
Explosion-proof grade
Flowmeter host Ex d IIB T5 Gb, transducer Ex mb IIC T5 Gb
Protection level
IP65
A-J Ultrasonic Gas Flow Meter installation location
Installation location
Installation description
C
Vertical installation, it is recommended to install in this position. Long maintenance period and low maintenance
B、D
Suitable for general conditions with water and dust, the maintenance period is shorter than that of C
A、E
It is suitable for general conditions with water and dust, and the maintenance period is shorter than that of positions C, B, and D
The vortex flowmeter is a volume flowmeter that measures the volume flow of gas, steam or liquid, the volume flow of standard conditions or the mass flow of gas, steam or liquid based on the Karman vortex principle. When the fluid flows through the dust collector rod of the vortex flowmeter, a vortex is formed. The frequency of vortex shedding is proportional to the fluid velocity. Temperature and pressure compensation can be configured.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
A-C Plug-in gas ultrasonic flowmeters on both sides, using single or dual channel mode. The sound channel design of the ultrasonic transducer takes into account the requirements of various working conditions. It is suitable for measurement in a variety of harsh environments. Suitable for low flow rate measurement. Suitable for low-frequency pulsating flow measurement.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Explosion protection
Explosion-proof grade
Flowmeter host Ex d IIB T5 Gb, transducer Ex mb IIC T5 Gb
Protection level
IP65
A-C Ultrasonic Gas Flow Meter installation location
Installation location
Installation description
A
Horizontal installation, it is recommended to install according to this position, the maintenance period is long, and the maintenance amount is small
B、C
Suitable for general conditions with water and dust, the maintenance period is shorter than that of A position
The gas turbine flowmeter integrates temperature, pressure, flow sensors and intelligent flow totalizers. The gas turbine flowmeter has high accuracy and good repeatability, so it is suitable for trade measurement and industrial process detection. It is widely used in many kinds of gas in petroleum, chemical, metallurgy, aviation, scientific research and other sectors and industrial fields. Such as natural gas, city gas, propane, butane, air, nitrogen and other gases measurement.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
A-S is a single-pole plug-in Ultrasonic Gas Flow Meter. Use single or dual channel mode. The sound channel design of the ultrasonic transducer takes into account the requirements of various working conditions. It is suitable for measurement in a variety of harsh environments. Suitable for low flow rate measurement. Suitable for low-frequency pulsating flow measurement.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
Explosion protection
Explosion-proof grade
Flowmeter host Ex d IIB T5 Gb, transducer Ex mb IIC T5 Gb
Protection level
IP65
A-S Ultrasonic Gas Flow Meter Installation
Installation location
Installation description
A、E
Horizontal installation, it is recommended to install according to this position, the maintenance period is long, and the maintenance amount is small
B、D
Suitable for general conditions with water and dust. The maintenance cycle is shorter than the installation position of A and E
C
Suitable for conditions with less water and dust, the maintenance cycle is shorter than the installation positions of A, B, D, E
A-S Ultrasonic Gas Flow Meter site platform construction diagram
The gas turbine flowmeter integrates temperature, pressure, flow sensors, and intelligent flow totalizers. The gas turbine flowmeter has high accuracy and good repeatability, so it is suitable for trade measurement and industrial process detection. It is widely used in many kinds of gas in petroleum, chemical, metallurgy, aviation, scientific research, and other sectors and industrial fields. Such as natural gas, city gas, propane, butane, air, nitrogen, and other gases measurement.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Sino-Inst’s Ultrasonic Gas Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
A-D Ultrasonic Gas Flow Meter is a pipe section type flow meter, using single or dual channel mode. The sound channel design of the ultrasonic transducer takes into account the requirements of various working conditions. It is suitable for measurement in a variety of harsh environments. Suitable for low flow rate measurement. Suitable for low-frequency pulsating flow measurement.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
Support waveform real-time display and debugging. Set operating parameters through the instrument menu
Alarm function
When the pressure, temperature, ultrasonic signal, instrument hardware, etc. are abnormal, an alarm is generated, and the alarm information can be obtained through the upper computer software to facilitate maintenance.
The gas turbine flowmeter integrates temperature, pressure, flow sensors and intelligent flow totalizers. The gas turbine flowmeter has high accuracy and good repeatability, so it is suitable for trade measurement and industrial process detection. It is widely used in many kinds of gas in petroleum, chemical, metallurgy, aviation, scientific research and other sectors and industrial fields. Such as natural gas, city gas, propane, butane, air, nitrogen and other gases measurement.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
The A series Ultrasonic Gas Flow Meter solves the problem of gas measurement.
A series Ultrasonic Gas Flow Meter is a split flowmeter suitable for gas measurement under complicated working conditions. The gas ultrasonic flowmeter consists of a flowmeter host, a flowmeter body, an ultrasonic transducer, a pressure transmitter, a temperature transmitter, and installation accessories.
Sino-Inst offers a variety of Ultrasonic gas flow meters for flow measurement. If you have any questions, please contact our sales engineers.
The measurement is not affected by the components, and the dust and moisture are small. Suitable for measuring multi-component gases or gases with changes in composition;
The all-metal design of the transducer is highly reliable and resistant to dirt. It can measure dirty gases such as coal gas and flue gas, and has a long service life;
Use professional digital signal processor. The running speed is fast and the algorithm reliability is high. The flow response is real-time, which can meet the gas measurement of complicated working conditions with rapid changes in temperature, pressure and humidity;
The starting velocity is small, the starting velocity is 0.2 m/s. Suitable for measuring low-speed flow;
D: Pipe segment installation S: Single pole plug-in installation C: Plug-in installation on both sides J: Plug-in installation on the same side
Installation form
2
S: Single channel D: Two-channel
Number of channels
3
DN50 DN80 DN100 DN150 DN200…….DN5000
Caliber
4
A: Helium, nitrogen, neon, argon, air and non-corrosive gases B: Coal-bed methane, natural gas, oil and gas, ethanol boil-off gas, methane, ethane, propane, other alkanes and olefin gases C: Blast furnace gas, converter gas, coke oven gas, carbon monoxide, mine gas and other gases D: Flue gas, torch gas, exhaust gas, exhaust gas, exhaust gas and other gases E: Biogas, fermentation gas, biomass gas and other gases F: Other types of gas
Application field
Example: A-SS-600D represents the A series split single-rod plug-in installation flow meter, measuring pipe section DN600, and the medium used is Class D gas.
The flowmeter host should avoid sharing an AC power supply with inverters, electric welders and other equipment.
The housing of the flowmeter host must be grounded separately (grounding resistance <4Ω).
The installation position of the transducer should be as far away as possible from the position that has a great influence on the fluid distribution. Such as: pump, elbow, tee, reducer, etc.
The installation position of the transducer should be as far away as possible from the throttle or regulating valve.
The installation location of the flow meter host and transducer should avoid the environment that can cause resonance of the signal processing unit, ultrasonic transducer and other components. And avoid environments where strong electromagnetic or electronic interference may exist.
Where there is a danger of lightning strikes, lightning arresters should be installed.
When the distance between the flow transmitter and the ultrasonic probe is far, the direct connection with the flowmeter signal cable will cause signal attenuation and interference. So try to shorten the distance between the two. Generally required: the cable connection distance between the host and the probe is less than 10 meters.
The signal cable connected between the flow transmitter and the ultrasonic probe should be isolated from the power line and avoid using the same casing.
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
Ultrasonic Gas Flow Meter uses the principle of measuring the transit time of ultrasonic waves in the pipeline. Ultrasonic Gas Flow Meter is an ideal choice for various gas measurements.
The gas ultrasonic flowmeter is suitable for blast furnace gas, converter gas, coke oven gas, mixed gas, gas, compressed air, chlorine, nitrogen and other industrial gases. Suitable for large-caliber gas measurement, suitable for low flow rate, pulsating flow gas measurement. It has the advantages of not being affected by gas components, dirt resistance, fast response, wide range, high precision, good stability, and less maintenance.
Sino-Inst offers a variety of flow meters for flow measurement. If you have any questions, please contact our sales engineers.
The ultrasonic gas flow meter is designed and manufactured according to the national standard GB/T-18604-2014 and the verification regulation JJG-1030-2007 using the principle of ultrasonic time difference method. Also refer to the US AGA8/AGA9/AGA10 report. Various performance indicators have reached the international advanced level of gas measurement.
Compared with traditional flow meters, gas ultrasonic flow meters have no pressure loss, strong anti-interference ability, wide range ratio, can measure small flow, can measure bidirectional flow and pulsating flow, and have the characteristics of being independent of gas composition. It is a new type of flow meter with excellent performance.
Features and advantages of Ultrasonic Gas Flow Meter
Suitable for multi-component metering. Gas flow measurement is not affected by changes in composition.
It can measure small flow and solve the problem of low flow gas measurement.
Large turndown ratio meets the measurement requirements of high flow rate and low flow rate.
Pulsating flow can be measured.
It can be measured in both directions.
Can measure dirty gas containing impurities and moisture;
Corrosion resistant, can measure corrosive gas flow.
It can be installed online and maintained online.
It adopts industrial design and the flowmeter has no moving parts. No pressure loss, reducing product use and maintenance costs.
It adopts all-metal transducer, which is resistant to dirt and corrosion. With a unique algorithm, it can ensure the gas flow measurement in the dirty medium.
Supports intelligent alarms such as pressure, temperature, flow, and ultrasonic signals. It can realize the early warning of the ultrasonic transducer before maintenance is required. Reduce maintenance frequency. Reduce maintenance costs.
Visual waveform display, menu-based instrument interface. It is convenient to use and debug the instrument.
Ultrasonic Gas Flow Meter Applications
Gas (coke oven gas, blast furnace gas, converter gas, producer gas, blue coal gas) and other gases measurement;
Gas measurement of biogas, bio-fermentation gas, biomass gas, landfill gas, aeration of water treatment plants, etc.;
Measurement of exhaust gases such as flare gas, flue gas, exhaust gas, exhaust gas, tail gas, etc.;
Measurement of non-corrosive gases such as air, oxygen, nitrogen, argon, helium, etc.;
Metering of natural gas, liquefied petroleum gas, coal bed methane, oil and gas, mine gas, wellhead gas and other gases;
Metering of chemical gases such as hydrogen, acetylene and ammonia;
The ultrasonic flowmeter is realized by measuring the propagation time of ultrasonic waves in the pipeline. The gas flow rate is obtained by the flow velocity, the cross-sectional area of the pipe and the Reynolds number.
Set up two ultrasonic generators (also receivers) T1 and T2 in the fluid, the distance between T1 and T2 is L, the time from T1 to T2 is t1, the time from T2 to T1 is t2, and the diameter is D , The angle between the ultrasonic transmission axis and the central axis is θ, and the time difference between the forward and reverse directions is △t=t2-t1.
L: Ultrasonic sensor distance C: Speed of sound V: average flow velocity θ: Ultrasonic transmission shaft and measuring tube The angle of the central axis t1: Ultrasonic propagation time (downstream) t2: Ultrasonic transmission time (backflow) Ｑ: Flow A: Cross-sectional area K: correction factor
According to the above settings: Suppose the travel time in the forward direction is t1, and the travel time in the reverse direction is t2.
Take the reciprocal of its propagation time as the difference, namely:
Can eliminate the speed of sound term C:
The “reciprocal difference of propagation time” method with superior repeatability: it is not affected by changes in the speed of sound (temperature), the measurement object is only time, and there is almost no change in year-round use.
Flow rate is related to fluid velocity and cross-sectional area:
Flow rate = velocity * cross-sectional area
After correction by the flow correction coefficient, the flow can be calculated as follows:
Sino-Inst’s Ultrasonic Gas Flow Meter offer reliable and accurate volume flow measurement in a large range of sizes and pressure rating while being fully compliant with international standards.
Sino-Inst is the risk-free choice for your gas flow measurement applications.
Sino-Inst’s Ultrasonic Gas Flow Meter, made in China, Having good Quality, With better price. Our flow measurement instruments are widely used in China, India, Pakistan, US, and other countries.
Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
When you need to measure oil flow, do you also encounter a problem: Turbine Flow meter Vs Gear Flow meter? How to choose?
Turbine flow meters and gear flow meters are commonly used flow meters. Although there is only one word difference literally, there are still different essential differences between the two.
Turbine flow meters are velocity flow meters, also called impeller flow meters. Can be used to measure the instantaneous flow and cumulative flow of liquids and gases.
Turbine flowmeters are widely used in flow measurement: petroleum, organic liquids, inorganic liquids, liquefied gas, natural gas, coal gas and cryogenic fluids. Turbine flowmeter signals can be divided into pulse signals or current signals (4-20mA). It is suitable for use with secondary display, PLC, DCS and other computer control systems.
Oval gear flowmeter is a precision instrument used to measure liquid flow. It is a direct reading cumulative meter. It is a positive displacement flow meter that measures the sum of the liquid flow through the pipeline.
The oval gear flowmeter can choose two counting mechanisms: mechanical display meter and electronic display meter. The display meter has the functions of displaying cumulative flow, instantaneous flow, and zero return. It can realize on-site display and remote control.
For different measuring media (acid, alkali, organic liquid, oil, food, etc.), the flowmeter can be made of different materials (cast steel, stainless steel, and 316). It is suitable for flow measurement in chemical, petroleum, pharmaceutical, electric power, metallurgy, and food industries. Extended reading: Cylinder Gear flow meter for micro flow measurement.
The liquid turbine flowmeter is a velocity flowmeter. The accuracy is 0.5%, which can be improved to 0.2%. The material of the watch body is generally stainless steel. According to site requirements, explosion-proof products can be made.
Oval gear flowmeter is a positive displacement flowmeter. The accuracy is 0.5%. Oval gear flowmeter is a purely mechanical mechanism. When the rotor of the flowmeter rotates, it drives the rotation of the counter to generate a cumulative total. Oval gear flowmeters are especially popular on occasions where explosion-proof requirements are relatively high.
2. Requirements of the working pressure:
The working pressure of the oval gear flowmeter is generally not large, 1.6Mpa. Using cast steel material, it can reach 2.5Mpa.
In contrast, turbine flowmeters are easier to make into high-pressure products. The maximum pressure of the high-pressure turbine flowmeter can reach over 25Mpa.
Requirements for low working pressure:
Turbine flowmeter does not have much requirement for the low working pressure in the pipeline, basically, it can be measured when the medium flows through it.
However, oval gear flow meters have higher requirements for small working pressures. Because of the different calibers, the pressure required to push the flowmeter rotor to work is different. The small working pressure required from small diameter to large diameter is between 0.3~0.8Mpa.
The maximum working temperature of the turbine flowmeter is 120°C. The maximum working temperature of the oval gear flowmeter is 160℃.
4. The difference of applicable media:
Water, solvents, light oils, etc. can be well suited for liquid turbine flow meters, but media with too high viscosity are not suitable.
The elliptical gear flowmeter is generally suitable for oily media. The viscosity of the applicable medium is higher than that of the turbine flowmeter. The greater the viscosity of the medium, the higher the accuracy.
For some corrosive media, both types of flowmeters can partially measure.
But the stainless steel oval gear flowmeter is not cost-effective. And for water and some electrolyte solutions, oval gear flow meters cannot be used. Because the internal mechanical parts are easily damaged by water.
As a positive displacement flowmeter, the elliptical gear flowmeter has relatively low requirements for the straight pipe sections before and after and basically has no requirements for straight pipe sections.
The turbine flowmeter, as a velocity flowmeter, has higher requirements for the front and rear straight pipe sections. Especially for some small diameter turbine flowmeters, a corresponding straight pipe section must be matched.
6. The difference between display and signal output:
The mechanical meter head of the oval gear flowmeter displays the cumulative amount. To display the instantaneous flow, you need to output a signal, and the matching secondary instrument displays the instantaneous flow value.
Turbine flowmeter can display instantaneous flow and accumulated flow on-site, and can also output with the remote signal.
7. The problem of maintaining accuracy:
The accuracy of turbine flow meters and oval gear flow meters cannot be maintained for a long time. In order to maintain the accuracy of the flowmeter, it must be calibrated regularly.
You may need to measure the flow of lubricating oil, diesel, fuel, hydraulic oil, etc. Combine the above points and your requirements. You should be able to decide which flow meter to choose. If you still have technical questions, please contact our sales engineers in time.
Turbine Flow meter Vs Gear Flow meter working principle
About the working principle of Turbine Flow meter Vs Gear Flow meter. I think the following video provides a good explanation. let’s look at it together:
Output pulse frequency signal. It is suitable for total measurement and connection with computer. No zero drift, strong anti-interference ability.
The structure is compact and lightweight. Easy installation and maintenance. Great flow capacity.
Good repeatability, short-term repeatability can reach 0.05~0.2%. It is because of good repeatability. Frequent calibration or in-line calibration results in extremely high accuracy.
There are many types of special sensors. It can be specially designed according to user needs. Such as: low temperature type, bidirectional, downhole type, special type for sand mixing, etc.
The pressure compensation can be performed under the stable pressure state of the measured gas.
The range is wide, the medium and large diameters can reach 1:20, and the small diameters are 1:10.
Disadvantages:
Regular calibration is required. There is no way to maintain accuracy for long periods of time. Cannot work continuously for a long time.
Higher requirements for the cleanliness of the medium. But filters can be installed.
The flowmeter is greatly affected by the flow velocity distribution of the incoming flow (a flow regulator can be installed).
It is not suitable for places where the flow rate changes rapidly.
Not suitable for testing corrosive media.
Turbine Type Flow Meter Installation Guidelines
In order to ensure the accurate measurement of the turbine flowmeter, the installation location and method must be selected correctly.
Requirements for straight pipe sections:
The flowmeter must be installed horizontally on the pipeline (the inclination of the pipeline is within 50), the axis of the flowmeter should be concentric with the axis of the pipeline during installation, and the flow direction should be consistent.
The length of the upstream pipeline of the flowmeter should have an equal diameter straight pipe section of not less than 2D. If the installation site is allowed, it is recommended that the upstream straight pipe section is 20D and the downstream is 5D.
Requirements for piping: The inner diameter of the upstream and downstream piping at the installation point of the flowmeter is the same as the inner diameter of the flowmeter.
Requirements for bypass pipes: In order to ensure that the normal use of the medium is not affected during the maintenance of the flowmeter, a cut-off valve (stop valve) should be installed on the front and rear pipelines of the flowmeter, and a bypass pipeline should be set at the same time. The flow control valve should be installed downstream of the flowmeter. When the flowmeter is used, the shut-off valve installed upstream must be fully opened to avoid unstable flow of the fluid in the upstream part.
Requirements for the external environment: The turbine flowmeter is best installed indoors. When it must be installed outdoors, sun protection, rain protection and lightning protection measures must be adopted to avoid affecting the service life.
Requirements for impurities contained in the medium: In order to ensure the service life of the flowmeter, a filter should be installed before the straight pipe section of the flowmeter.
Installation site: The flowmeter should be installed in a place that is easy to maintain and free from strong electromagnetic interference and heat radiation
Requirements for installation and welding: The user can configure a pair of standard flanges to be welded on the front and rear pipes. Welding with flow meter is not allowed! Before installing the flowmeter, the welding slag and other dirt in the pipeline should be strictly removed. To ensure that the flowmeter is not damaged during use.
If the flowmeter is divided into 5 categories. Then the five commonly used flowmeters are:
Electromagnetic flowmeter
Differential pressure flowmeter
Turbine flowmeter
Ultrasonic flowmeter
Volumetric flowmeter (PD)
For liquids, it is generally ±0.25%R－±0.5%R, High precision type can reach ±0.15%R;
And the medium is gas, generally ±1%R－±1.5%R; The special type is ±0.5%R－±1%R.
Turbine flowmeter is the main type of velocity flowmeter. It uses a multi-blade rotor (turbine) to sense the average flow rate of the fluid, and derives the flow or total amount of the meter.
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Wu Peng, born in 1980, is a highly respected and accomplished male engineer with extensive experience in the field of automation. With over 20 years of industry experience, Wu has made significant contributions to both academia and engineering projects.
Throughout his career, Wu Peng has participated in numerous national and international engineering projects. Some of his most notable projects include the development of an intelligent control system for oil refineries, the design of a cutting-edge distributed control system for petrochemical plants, and the optimization of control algorithms for natural gas pipelines.
