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Vortex Flowmeter

 Vortex Flowmeter

YJLU series Vortex Flowmeter There is analog standard signal , There are also digital output pulses , It is easy to use with computer and other digital systems , It is an advanced and ideal flow meter.


Yjlu series Vortex Flowmeter Application range:

Vortex Flowmeter It is mainly used for flow measurement of medium fluid in industrial pipeline , Such as gas, liquid, steam and other media.


Yjlu series Vortex Flowmeter Measurement principle:
 Principle of vortex flowmeter


Under specific flow conditions, a part of fluid kinetic energy is converted into fluid vibration, and its vibration frequency has a certain proportion relationship with the flow rate (flow rate). The flowmeter based on this principle is called fluid vibration flowmeter. At present, there are three types of fluid vibration flowmeter: vortex flowmeter, precession flowmeter and jet flowmeter.
In terms of structure Vortex Flowmeter It consists of sensor and converter. The sensor includes vortex generator (blocking fluid), detection element, instrument body, etc.; the converter includes preamplifier, filter shaping circuit, etc D A Conversion circuit, output interface circuit, terminal, bracket and protective cover, etc. In recent years, microprocessor, display communication and other functional modules are also installed in the converter.
 
The vortex generator is the main component of the detector above the vortex generator, which is closely related to the flow characteristics (instrument coefficient, linearity, range, etc.) and resistance characteristics (pressure loss) of the instrument. The requirements for it are as follows.
one
)It can control the vortex separation in the direction of vortex generator axis;
two
)In a wide range of Reynolds numbers, there is a stable vortex separation point and a constant Strouhal number;
three
)It can produce strong vortex street and high signal-to-noise ratio;  
four
)Its shape and structure are simple, easy to process and standardize geometric parameters, as well as the installation and combination of various detection elements;
five
)The properties of fluid and corrosion resistance should meet the requirements of corrosion resistance;
six
)The natural frequency is outside the frequency band of vortex signal.


Yjlu series Vortex Flowmeter Product features:

Vortex Flowmeter It is characterized by small pressure loss , Large measuring range , High precision , It is almost not affected by the density, pressure, temperature, viscosity and other parameters. No movable mechanical parts, so high reliability , Small amount of maintenance. The instrument parameters can be stable for a long time. Vortex Flowmeter Piezoelectric stress sensor is used , High reliability , Can be found in -20 ℃~ +250 Working within the operating temperature range of.


Yjlu series Vortex Flowmeter Technical parameters:

1. Measuring medium: gas, liquid and vapor
two
Caliber selection of flange 25,32,50,80,100
three
Flange connection type diameter selection 100,150,200
four
Flow measurement range normal flow rate range Reynolds number 1.5×104 4×106 ; gas five 50m /s; liquid zero point five 7m /s
The normal flow measurement range of liquid and gas is shown in the table two See table for steam flow range three
five
Measurement accuracy zero point nine nine nine nine level one point four nine nine nine nine level
six
Temperature of measured medium : normal atmospheric temperature –25 one hundred
7. High temperature –25 one hundred and fifty ℃-25 two hundred and fifty
8. Output signal pulse voltage output signal high level eight 10V Low level zero point seven 1.3V
nine
The pulse duty cycle is about 50%, The transmission distance is 100m
ten Pulse current remote transmission signal four 20 mA, The transmission distance is 1000m
eleven Ambient temperature of instrument :-25 +55 humidity :5 90% RH50
12. Material: stainless steel , aluminium alloy
thirteen
Power supply DC24V Or lithium battery 3.6V
fourteen
Explosion proof grade intrinsic safety type iaIIbT3-T6
fifteen
Protection level IP65

 Vortex flowmeter flow

Yjlu series Vortex Flowmeter Product selection:

Code name

Diameter

Flow range M2 /h

YJLU-25

DN25

1~10( liquid )

25~60 (gas)

Please refer to the manual for steam flow, DN300 Plug in vortex flowmeter is recommended

YJLU-32

DN32

1.5~18( liquid )

15~150 (gas)

YJLU-40

DN40

2.2~27( liquid )

22.6~150 (gas)

YJLU-50

DN50

4~55( liquid )

35~350 (gas)

YJLU-80

DN80

9~135( liquid )

90~900 (gas)

YJLU-100

DN100

14~200( liquid )

140~1400 (gas)

YJLU-150

DN150

32~480( liquid )

300~3000 (gas)

YJLU-200

DN200

56~800( liquid )

550~5500 (gas)

 

Code name

function one

N

No temperature and pressure compensation

Y

With temperature and pressure compensation

 

Code name

Output model

F1

4-20mA Output (two wire system)

F2

4-20mA Output (three wire system)

F3

RS485 communication interface

 

Code name

Measured medium

J1

liquid

J2

Gas

J3

steam

 

Code name

Connection mode

L1

Flange clamping type

L2

Flange connection type

 

Code name

function two

E1

one level

E2

one point five level

T1

normal atmospheric temperature

T2

high temperature

T3

steam

P1

1.6MPa

P2

2.5MPa

P3

4.0MPa

D1

inside 3.6V power supply

D2

DC24V power supply

B1

stainless steel

B2

carbon steel

 

Yjlu series Vortex Flowmeter Order notice:

Please provide the following parameters when ordering:

1. Medium: name, composition, state, conductivity or conductivity
two
Maximum, normal and minimum operating temperature
three
Maximum, normal and minimum working pressure
four
Inside and outside diameter of pipeline, minimum, normal and maximum flow
five
Corrosive, abrasive, negative pressure
six
Installation requirements and environment: integrated or split, signal output, communication mode, power supply
seven
Installation environment: protection level and explosion-proof requirements

 

Yjlu series Vortex Flowmeter Quality commitment:

Jinhu Yijia Instrument Co., Ltd. is mainly engaged in electromagnetic flowmeter, vortex flowmeter, orifice flowmeter, magnetic flap level gauge, glass plate level gauge and other products, and provides a one-year warranty for all products. In case of product quality problems (excluding wearing parts or accessories) within one year, they shall be repaired free of charge, and technical support shall be provided free of charge.

Consultation hotline 0517-86936880 15358661880

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