Intelligent Turbine Flow Meter | Working Principle of Intelligent Turbine Flow Meter

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1. Technical Parameters of Intelligent Liquid Turbine Flow Meter

Detailed Analysis of Technical Parameters of Intelligent Turbine Flow Meter: Implementing Standard Turbine Flow Sensor (JB/T9246-1999) Instrument Diameter (mm) and Connection Method

4、

6、

10、1

5、20、2

5、3

2、40、50、6

5、 80 adopts threaded connection?? Accuracy level? ± 1% R, ± 0.5% R, ± 0.2% R (to be customized) range ratio? 1:10； 1:15； 1: 20 sensor material? What are the usage conditions for 304 stainless steel, 316 (L) stainless steel, etc? Medium temperature: -20 ℃~+120 ℃, ambient temperature: -20 ℃~+60 ℃, relative humidity: 5%~90%, atmospheric pressure: 86Kpa~106Kpa, signal output function? Pulse signal, 4-20mA signal communication output function? RS485 communication, HART protocol, etc. are used as power sources? External power supply:+24VDC ± 15%, ripple ≤ ± 5%, suitable for 4-20mA output, pulse output, RS485, etc. Internal power supply: 1 set of 3.0V10AH lithium batteries, which can work normally when the battery voltage is between 2.0V and 3.0V. Signal line interface? Basic type: Hausman connector or self-contained three core cable; Explosion proof type: Internal thread M20 * 1.5 Explosion proof grade? ExiaICIT4 or ExdIIBT6 protection level? IP65 or higher (customizable) Measurement medium: liquid dust sensor accuracy: ± 0.5%; ± 1.0% (specific up to 0.2%) repeatability: ± 0.2% of the indicated value Environmental temperature: 0 ℃~+120 ℃ Relative humidity: 5%~95% Explosion proof mark: ibIIBT4 Protection level: IP67

2. Difference between turbine flowmeter and intelligent turbine flowmeter

Turbine flowmeter consists of turbine, bearings, preamplifier, and display instrument. The princi

ple of a turbine flowmeter is to place a turbine in the center of a pipeline, supported by bearings at both ends. When the fluid passes through the pipeline, it impacts the turbine blades, generating a driving torque for the turbine, which overcomes the friction torque and fluid resistance torque to produce rotation. Within a certain flow range, for a certain viscosity of the fluid medium, the rotational angular velocity of the turbine is proportional to the fluid flow velocity. Therefore, the fluid flow velocity can be obtained from the rotational angular velocity of the turbine, and the fluid flow rate through the pipeline can be calculated. The rotational speed of the turbine is detected by a sensing coil installed outside the casing. When the turbine blades cut the magnetic field lines generated by the permanent magnetic steel inside the casing, it will cause changes in the magnetic flux in the sensing coil. The sensing coil sends the detected periodic change signal of the magnetic flux to the preamplifier, which detects the magnetic flux. Amplify and shape the signal, Generate a pulse signal proportional to the flow rate, send it to the unit conversion and flow accumulation circuit to obtain and display the accumulated flow value; At the same time, the pulse signal is also sent to the frequency electric Xiaozhou dispersion conversion circuit, which converts the pulse signal into an analog current and indicates the instantaneous flow rate value. The measured fluid impacts the turbine blades, causing the turbine to rotate. The speed of the turbine changes with the change of flow rate, that is, when the flow rate is high, the speed of the turbine is also high. Then, the speed of the turbine is converted into electrical

Intelligent Turbine Flow Meter | Working Principle of Intelligent Turbine Flow Meter

1. Technical Parameters of Intelligent Liquid Turbine Flow Meter

2. Difference between turbine flowmeter and intelligent turbine flowmeter

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