The vortex flowmeter can measure the flow of gas, liquid and steam, such as volume flow, mass flow, volume flow, etc. The measurement effect is good and the accuracy is high. It is the most widely used type of fluid measurement in industrial pipelines and has good measurement results.
The measurement range of the vortex flowmeter is large, and the influence on the measurement is small. For example, fluid density, pressure, viscosity, etc. will not affect the measurement function of the vortex flowmeter, so the practicability is still very strong.
The advantage of the vortex flowmeter is its large measuring range. High reliability, no mechanical maintenance, because there are no mechanical parts. In this way, even if the measurement time is long, the display parameters can be relatively stable. With pressure sensor, it can work in low temperature and high temperature environment with strong adaptability. Among similar measuring instruments, the vortex flowmeter is the ideal choice. Now, many factories use this kind of instrument to measure value better and more accurately.
For example: 0.13-0.16 1/L, you can estimate the bai yourself, measure the width of the triangle column, and the Straw du Hall parameter is between 0.16-0.23 (calculated at 0.17).
f=StV/d formula (1)
Where dao:
f-Carman vortex frequency generated on one side of the generator
St-Strohal number (dimensionless number)
V-the average flow rate of the fluid
d-the width of the vortex generator (note the unit)
After calculating the frequency
K=f*3.6/(v*D*D/353.7)
K: flow coefficient
f: Frequency generated at set flow rate
D: Flow meter caliber
V: Flow rate
Vortex flowmeter range selection
The function and version of the white power amplifier and Du power amplifier of the vortex flowmeter are different.
| The measuring range of the vortex flowmeter | |||||
| Gas | Caliber | Measurement lower limit (m3/h) |
Measurement limit (m3/h) |
Optional measurement range (m3/h) |
Output frequency range (Hz) |
| 15 | 5 | 30 | 5-60 | 460-3700 | |
| 20 | 6 | 50 | 6-60 | 220-3400 | |
| 25 | 8 | 60 | 8-120 | 180-2700 | |
| 32 | 14 | 100 | 14-150 | 130-1400 | |
| 40 | 18 | 180 | 18-310 | 90-1550 | |
| 50 | 30 | 300 | 30-480 | 80-1280 | |
| 65 | 50 | 500 | 50-800 | 60-900 | |
| 80 | 70 | 700 | 70-1230 | 40-700 | |
| 100 | 100 | 1000 | 100-1920 | 30-570 | |
| 125 | 150 | 1500 | 140-3000 | 23-490 | |
| 150 | 200 | 2000 | 200-4000 | 18-360 | |
| 200 | 400 | 4000 | 320-8000 | 13-325 | |
| 250 | 600 | 6000 | 550-11000 | 11-220 | |
| 300 | 1000 | 10000 | 800-18000 | 9-210 | |
| Liquid | Caliber | Measurement lower limit (m3/h) |
Measurement limit (m3/h) |
Optional measurement range (m3/h) |
Output frequency range (Hz) |
| 15 | 1 | 6 | 0.8-8 | 90-900 | |
| 20 | 1.2 | 8 | 1-15 | 40-600 | |
| 25 | 2 | 16 | 1.6-18 | 35-400 | |
| 32 | 2.2 | 20 | 1.8-30 | 20-250 | |
| 40 | 2.5 | 25 | 2-48 | 10-240 | |
| 50 | 3.5 | 35 | 3-70 | 8-190 | |
| 65 | 6 | 60 | 5-85 | 7-150 | |
| 80 | 13 | 130 | 10-170 | 6-110 | |
| 100 | 20 | 200 | 15-270 | 5-90 | |
| 125 | 30 | 300 | 25-450 | 4.5-76 | |
| 150 | 50 | 500 | 40-630 | 3.58-60 | |
| 200 | 100 | 1000 | 80-1200 | 3.2-48 | |
| 250 | 150 | 1500 | 120-1800 | 2.5-37.5 | |
| 300 | 200 | 2000 | 180-2500 | 2.2-30.6 | |
1. The vortex flowmeter with simple functions includes the following parameter options:
Instrument coefficient, small signal cut-off, corresponding 4-20mA output range, sampling or damping time, accumulation clearing, etc.
2. In addition, the more complete vortex flowmeter also includes the following parameter options:
Measuring medium type, flow compensation setting, flow unit, output signal type, temperature upper and lower limit, pressure upper and lower limit, local atmospheric pressure, medium standard condition density, communication setting.
Post time: Apr-26-2021