⎝⎛星力捕鱼⎞⎠

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Address: Xiongyi, Jinhe Road, Jinhu County, Jiangsu Province
Lunan
Phone: 0517-86900901
0517-86900921
0517-86900920
Fax: 0517-86900902
Postcode: 211600
http://zzyfwh.com
Email: chinadongxiang@163.com
Flow meter
LUX type precession vortex gas flowmeter

LUX type precession vortex gas flowmeter

Rotary swirl gas flow meter This product is widely used in various gas measurement in petroleum, chemical, power, metallurgy and coal industries.

  • Measurement medium: medium to high velocity gas
  • Measuring range: 1.2-3600m³ / h
  • Output signal: pulse signal, 4-20mA current signal and RS485 data communication
  • Accuracy level: 1.0 level 1.5 level
  • Medium temperature: -20 ℃ ~ 80 ℃
  • Explosion-proof grade: ExiaIICT4
  • Protection level: IP65
  • User rating:
  • Quality guarantee: The company strictly implements the relevant national warranty regulations, and the product warranty is one year.
  • After-sales service: Jiangsu Dongxiang Instrument provides delivery and provides after-sales service.

Vortex gas flowmeter product overview <br /> The flow profile of the flow sensor of the vortex gas flowmeter is similar to the profile of a Venturi tube. A set of spiral guide vanes is placed on the inlet side. When the fluid enters the flow sensor, the guide vanes force the fluid to generate a violent vortex. When the fluid enters the diffusion section, the vortex is affected by the backflow and starts to rotate twice to form a gyro-type vortex precession phenomenon. The precession frequency is directly proportional to the flow rate, and is not affected by the physical properties and density of the fluid. The second rotation precession frequency of the fluid measured by the detection element can obtain good linearity over a wide range of flow rates. The signal is amplified, filtered, and shaped by a preamplifier and converted into a pulse signal proportional to the flow rate, and then sent to the microprocessor for integration processing with the detection signals such as temperature and pressure. Finally, the measurement is displayed on the LCD Results (instantaneous flow, cumulative flow and temperature, pressure data).
Product features of vortex gas flowmeter

  • No mechanical moving parts, not easy to corrode, stable and reliable, long life, no special maintenance required for long-term operation;
  • 16-bit computer chip, high integration, small size, good performance, strong machine function;
  • Intelligent flowmeter integrates flow probe, microprocessor, pressure and temperature sensor into one, and adopts built-in combination to make the structure more compact. It can directly measure fluid flow, pressure and temperature, and automatically track compensation and compression factor correction in real time;
  • The use of dual detection technology can effectively increase the detection signal strength and suppress interference caused by pipeline vibration;
  • Adopt domestic leading intelligent anti-seismic technology to effectively suppress interference signals caused by vibration and pressure fluctuations;
  • Using Chinese character dot matrix display, with many display digits and intuitive and convenient readings, it can directly display the volumetric flow rate in the working state, the volumetric flow rate and the total volume in the standard state, and parameters such as media pressure and temperature
  • EEPROM technology, convenient parameter setting, can be saved permanently, and can save historical data for up to one year;
  • The display can output frequency pulses, 4-20mA analog signals, and has an RS485 interface, which can be directly connected to a microcomputer, and the transmission distance can reach 1.2km;
  • Multi-physical parameter alarm output, which can be selected by the user;
  • The meter head can be rotated 360 degrees, which is simple and convenient to install and use;
  • With the company's FM data collector, remote data transmission can be performed through the Internet or telephone network;
  • Pressure and temperature signals are sensor input methods, which are highly interchangeable;
  • The whole machine has low power consumption, which can be powered by the internal battery or external power supply.

 

 

 

 

Technical parameters of vortex gas flowmeter


Implementation standards

GB3836.1-2000 \ GB3836.2-2000

Verification Regulations

Speed type flowmeter (JJG198-1994)

Nominal diameter

15, 20, 25, 32, 40, 50, 65, 80, 100, 125, 150, 200, 250, 300mm

Accuracy class

1.5 / 1.0

Withstand voltage rating

Aluminum body (1.6MPa) ≤ DN150 (6.3MPa); stainless steel (4.0MPa)> DN150 (4.0MPa)

Working power

24V + battery

Machine power consumption

External power: <2W; Internal power: 1mW average power consumption, can be used continuously for more than two years.

Data storage function

Daily record, monthly record, regular interval record, etc.

Conditions of Use

Medium temperature

-20 ℃ ~ + 80 ℃

Relative humidity

5% ~ 95%

Ambient temperature

-30 ℃ ~ + 65 ℃

Atmospheric pressure

86KPa ~ 106KPa

Instrument material

Surface body

Aluminum alloy, stainless steel

converter

Cast aluminum, 304 stainless steel

Protection class

IP65

Explosion-proof grade

ExdIIBT4

ExiaIICT4

Measuring range


Nominal diameter DN (mm)

Flow range
(m3 / h)

Working pressure (MPa)

level of accuracy

Repeatability

15

0.3 ~ 9

1.6;
2.5;
4.0;
6.3

1.0 grade
1.5 grade

Less than 1/3 of the absolute value of the basic error limit

20

1.2 ~ 15

25

2.5 ~ 30

32

4.5 ~ 60

40

7 to 100

50

10 ~ 150

65

20 ~ 280

80

28 ~ 400

100

50 ~ 800

125

100 ~ 1500

150

150 ~ 2250

200

360 ~ 3600

1.6;
2.5;
4.0

250

400-4000

300

500-5000