Jing Chuan JC-LUGB corrosion proof Intelligent Vortex Flowmeter It is characterized by a no moving parts inside the pipe; long life; wide linear measuring range; almost independent of temperature; influence viscosity changes;; pressure; density small pressure loss; accuracy class 0.5~1.0 . Level vortex flowmeter output is proportional to the pulse volume flow rate digital signal vortex flowmeter gas, liquid, vapor vortex flowmeters are ideally suited principle: Vortex flowmeter is fluid in use under certain conditions will produce a flow oscillation, frequency and velocity is proportional to the oscillation and the principles of design. When fixed, the flow velocity is proportional to the volume of through-flow cross-section of the guide. Therefore, the measurement of the oscillation frequency can be measured flows.
Vortex flowmeter works:
Set triangular columnar vortex shedder in the fluid, from the vortex of both sides alternately produce a regular vortex, this vortex is called Karman vortex, as shown, the vortex in the vortex downstream of the column occurs asymmetrically arranged .
Vortex flowmeter features:
1; maximum advantage of vortex flowmeter is particularly good anti-vibration performance; afternoon zero drift; high reliability
2, anti-vibration performance is particularly good
Through extensive time waveform analysis and spectrum analysis of vortex flowmeters. SIA to design the best probe shape, thickness, height, probe rod diameter and with the support of a piezoelectric crystal, the use of advanced CNC lathe machining, to ensure concentricity and finish machining and other technical parameters. with a special process. thereby maximizing overcome Vortex Flowmeter The existence of inherent oscillation frequency of the signal from the impact of this common problem. This is the SIA in the manufacture of technical vortex flowmeter unique advantages make SIA company manufactured Vortex have excellent anti-vibration capability.
3. Vortex Flowmeter The sensor is very versatile, so that the sensor has a good interchangeability. The use of advanced CNC machining equipment sensor body and the swirl sounding body, to ensure precision, so that the parts (especially the sound swirl bodies) versatility, thus truly will not replace the affected parts of the repeatability and accuracy of the sensor, which can produce a strong and stable vortex signal.
4, simple, solid structure, no moving parts, high reliability, easy maintenance action.
5, the detection element is not in contact with the medium, stable performance, long service life.
Sensor detection probe and the vortex shedder separately in accordance with, and high-temperature piezoelectric crystal sealed within the detection probe, no contact with the measured medium, the XFE vortex flowmeter has a simple mechanism, common good, stable high.
6, the output proportional to the pulse and flow preference or mold melon signal, no zero drift, high accuracy, convenience and computer networking.
7; wide measuring range; turndown ratio up to 20: 1.
Vortex without compensation, the output signal is actually a vortex flow rate into the system when measuring volumetric flow meter linear relationship, that is proportional to the flow volume of the purpose of pressure and temperature compensation in order to get to the density of the fluid, volume flow is obtained by multiplying the mass flow, volume flow of gas if the measure does not need to compensate.
8, pressure loss by Vortex flowmeter diameter dn50 may ene gas flow if the maximum flow rate qmax within the pipe = 2003 h, the pressure loss of the sensor is:.. • P = 1.08 * 10-6pv2 (kpa ) = 0.605kpa
9, in a certain Reynolds number range, the flow characteristics from the fluid pressure, temperature, viscosity, density, composition, impression, only the shape and size of the vortex shedder relevant.
10, a wide range of applications, steam, air and liquid flow can be measured.
Vortex flowmeter technology parameters:
1. Measuring media: gas; liquid; vapor
2. Specifications Fa Lanka mounted caliber caliber selection25325080100
3. Flanged caliber selection100150200
4. Normal measurement range of flow measurement flow rate range ? Re 1.5 * 104 to 4 * 106; gas 5 ~ 50m / s; liquid 0.5 ~ 7m / s
Normal measurement range of liquid flow rate, gas flow measurement range Table 2; Table 3 vapor flow range
5. measurement accuracy 1.0, 1.5
6. Measured medium temperature : Room temperature 25 ℃ ~ 100 ℃
7. high temperature�25℃~150℃ -25℃~250℃
8. Output signal pulse voltage output signal high 8 ~ 10V low 0.7 ~ 1.3V
9. Pulse duty cycle of about 50%, the transmission distance of 100m
10. Pulse current remote signal 4 ~ 20 mA, the transmission distance of 1000m
11. Instrumentation ambient temperature : -25 ℃ ~ + 55 ℃ Humidity: 5 ~ 90% RH50 ℃
12. Material Stainless Steel , Aluminum
13. power supply DC24V or lithium battery 3.6V
14. Explosion levels intrinsically safe iaIIbT3-T6 Protection class IP65
Caliber and flow range:
Vortex flowmeter selection parameters to be determined as follows:
| DN (mm) || liquid || gas || steam|
|20 ||0.8-10 ||5-40 ||8-80|
|25 ||1-12 ||7.2-60 ||10-120|
|32 ||1.5-20 ||12-100 ||15-200|
|40 ||2-30 ||18-150 ||20-300|
|50 ||3-50 ||30-300 ||30-450|
|65 ||6-80 ||50-420 ||60-800|
|80 ||10-130 ||70-600 ||100-1300|
|100 ||20-200 ||120-1000 ||200-2000|
|125 ||30-300 ||180-1500 ||300-3000|
|150 ||45-450 ||240-2000 ||450-4500|
|200 ||90-900 ||480-4000 ||900-9000|
|250 ||120-1200 ||700-8000 ||1200-12000|
|300 ||180-2000 ||900-10000 ||1600-16000|
1, Name clear fluid component.
2, Maximum, commonly, the minimum flow clear working condition.
3, Clearly the highest common, minimum working pressure and temperature.
4, Viscosity of the medium in working condition.
5, According to the measured fluid state of different (Liquid; gas; steam) is calculated with the selection meter flow range, aperture size.