Intelligent liquid flowmeter | Working principle of intelligent liquid turbine flowmeter

『Intelligent liquid flowmeter』Related information(clamp on meter|electromagnetic meter|venturi meterrotameter|orifice meter|ultrasonic flow meter|mass flow meter|coriolis mass flow meter|coriolis flow meter|magnetic flow meter|magmeter flow meter|magflow flow meter|mag meter flow meter|electromagnetic flow meter|vortex flow meter|turbine flow meter|thermal mass flow meter|thermal flow meter|rotameter flow meter)

1. Measurement range and working pressure of intelligent liquid turbine flowmeter

Detailed analysis of measurement range and working pressure of intelligent turbine flowmeter: Instrument diameter (mm) Normal flow range (m3/h) Extended flow range (m3/h) Default installation method and pressure resistance level Optional installation method and default pressure resistance level Special measuring bucket pressure resistance level (MPa) DN4 0.04-0.25 0.04-0.4 thread installation, 6.3Mpa flange installation, 2.5MPa 1

2, 1

6, 25 DN6 0.1-0.6 0.06-0.6 thread installation, 6.3Mpa flange installation, 2.5MPa 1

2, 1

2. 1

6. 25 DN15 0.6-6 0.4-8 thread installation, 6.3Mpa flange installation, 2.5 MPa 4.0, 6.

3, 1

2, 1

6, 25 DN20 0.8-8 0.45-9 thread installation, 6.3Mpa flange installation, 2.5MPa 4.0, 6.

3, 1

2, 1

6, 25 DN25 1-10 0.5-10 thread installation, 6.3Mpa flange installation, 2.5 MPa 4.0, 6.

3, 1

2, 1

6, 25 DN32 1.5~15 0.8~15 thread installation, 6.3Mpa flange installation, 2.5MPa 4.0, 6.

3, 1

2, 1

6, 25 DN40 2~20 1~20 thread installation, 6.3Mpa flange installation, 2.5MPa 4.0, 6.

3, 1

2, 1

6, 25 DN50 4~40 2~40 flange installation, 2.5Mpa thread connection, 6.3MPa 4.0 6.

3. 1

2. 1

6. 25 DN65 7-70 4-70 flange installation, 1.6Mpa threaded connection, 6.3MPa 4.0. 6.

3. 1

2. 1

6. 25 DN80 10-100 5-100 flange installation, 1.6Mpa threaded connection, 6.3MPa 4.0. 6.

3. 1

2. 1

6. 25 DN100 20-200 flange installation, 1.6 Mpa 　　4.0、6.

3、1

2、1

6、2

5、4.0、6.

3、1

2、16 DN150 30～300 15～300 Flange installation, 1.6 Mpa 　　2.

5、4.0、6.

3、1

2、16 DN200 80～800 40～800 Flange installation, 1.6Mpa 2.

5, 4.0, 6.

3, 1

2, 16

2. Working principle of intelligent liquid turbine flowmeter

Intelligent liquid turbine flowmeter uses a turbine for measurement. It first converts the flow rate into the rotational speed of the turbine, and then converts the rotational speed into an electrical signal proportional to the flow rate. This type of flowmeter is used to detect instantaneous flow and total cumulative flow, and its output signal is frequency, which is easy to digitize. The induction coil and permanent magnet in the picture are fixed together on the housing. When the ferromagnetic turbine blades pass through the magnet, the magnetic resistance of the magnetic circuit changes, thereby generating an induction signal. The signal is amplified and shaped by an amplifier and sent to a counter or frequency meter to display the total accumulated flow rate. Simultaneously, the pulse frequency is converted from frequency to voltage to indicate instantaneous flow rate. The rotational speed of the impeller is proportional to the flow rate, and the rotational speed of the impeller is proportional to the total amount of fluid passing through it. The output of the turbine flowmeter is a frequency modulated signal, which not only improves the anti-interference ability of the detection circuit, but also simplifies the flow detection system. Its range ratio can reach 10:1, and the accuracy is within ± 0.2%. The time constant of a turbine flowmeter with small inerti

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