LUGB

-20

+300

LUGBLUGB

f=SrV

(1- )dD4d

f-

d-

Sr-V-D-

Vortex Shedding FlowmeterVortex Shedding Flowmeter

Q/YHC0401-2001 JB/T6807-93

h L L/h=O 281

Re 5000-150000 Sr

d Sr f

Q

4~20mA Q f

Q= kf

Q- /

f- Hz

K- /

15 20 25 32 40 50 65 80 100

125 150 200 250 300

DN200~2000

5~50m/s 65m/s

0.5~5m/s 7m/s

3

1 1.5

2.5

Vortex Shedding FlowmeterVortex Shedding Flowmeter

f/v

v/I

-25 ~100 -25 ~150 -25 ~250

1.6MPa 2.5MPa 4.0MPa

8~10V 0.7~1.3V

4~5V 0.7~1.3V

50% 100

DC4~20mA 600 24V

3000

-25 ~+55 5~90%RH 50

12V DC 10% 24V DC 10% 3.6V 7.5Ah2

ExiallCT1-T5, ExdllBT4

IP65

304

3m /h

3m /h

15

0.3~3

5~30

20

0.5~5

5.5~56

25

1.2~12

10.2~80

32

1.5~15

15~150

40

2.2~22

22~220

50

4~40

35~350

65

6~60

60~600

80

9~90

90~900

100

14~140

125

22~220

150

35~350

200

65~650

250

120~1200

1100~11000

300

180~1800

1500~15000

316

Vortex Shedding FlowmeterVortex Shedding Flowmeter

140~1400 220~2200 300~3000 550~5500

t/h kg/h MPa

200mm

DN DN200250300350400450500600700800

5588

125170225286350505690900

570885

12751735226528703540509069309050

560880

12701730226028603530508569259045

45307070

1018013860181002290528275407155542072380

900100011001200130014001500160018002000

1145141017102035238527703170361045805650

11450141401711020230238952771031800362004585056550

11450141351710020230238902770531700361054575056545

91605113095136840162850191125211660254455289510366410452365

Vortex Shedding FlowmeterVortex Shedding Flowmeter

DN15~100 1 4

DN125~30 1 4

DN200~2000 2 5

15 20

25

32

40

50

65

80

100

125

150

200

250

300

2.5~4.0

2.5~4.0

2.5~4.0

2.5~4.0

2.5~4.0

1.6~2.5

1.6~2.5

1.6~2.5

1.6

1.6

1.6

1.6

1.6

66

66

66

70

85

98

110

110

250

300

320

320

320

280

280

285

290

295

310

320

330

323

335

370

400

420

500

500

505

510

515

530

540

550

545

555

590

620

640

65

65

72

80

90

105

120

150

245

280

335

405

460

210

240

295

355

410

8- 18

8- 23

12- 23

12- 25

12- 25

15(20)

25

32

40

50

65

80

100

125

150

200

250

300

26

28

30

32

32

7.5

7

10

11

12.5

17

20

27

22

24

31

40

48

Vortex Shedding FlowmeterVortex Shedding Flowmeter

4

(DN15~100) (DN125~300)

2

200~ 500

500~ 1000

1000~ 1400

1400~ 2000

950

1200

1500

1810

15DN

35

20

25

40

15

40

DN

DN

DN

DN

DN

DN

5

5

5

5

5

5

5

DN

DN

DN

DN

DN

DN

DN

90

90

90

Vortex Shedding FlowmeterVortex Shedding Flowmeter

50DN

50DN

80DN

30DN

55DN45DN

35DN

25DN

25DN

50DN

10DN

25DN25DN

15DN

15DN

15DN

20DN

10DN

20DN20DN

10DN

5DN

5DN

5DN

5DN

5DN5DN

5DN

5

6

7

Qv

Qmax 1/2

4 62 1 0 7 1 0

3 1

4 1 2

Vortex Shedding FlowmeterVortex Shedding Flowmeter

N

QV

Q

Q Qm v

V

= N

0.1013+P

0.1013

273.15+20

273.15+T

Q =Q v N

N 273.15

273.15+20

+TQ =Q v N

0.1013

0.1013+P

Q = v

Qm

v=

P

Q v

Qm

v

3(Kg/m )

(MPa)3(m /h)

(kg/h)2

(m /s)

N

T

QN

Q

3(Kg/Nm )

( )3

(Nm /h)

(Pas)

Vortex Shedding FlowmeterVortex Shedding Flowmeter

3(Kg/m )

1.083

0.7080

1.8332

1.2041

1.165

1.7495

(Kg/m3)

2.4163

1.1660

0.83914

1.6605

0.0838

1.1646

(Kg/m3)

1.2500

0.6669

0.776

1.829

1.3302

8

3 -6 2 3850kg/m 2cst(=2 10 m /s) 50m /h

1 Q =50v

3 3m /h 1 DN65 Qmax=60m /h

2) 3 2cst Qmin=12 (3m /h

)

85 0.5MPa CO 3500N2

3 3=1.829kg/m m /hN

1.829

8.8862) 3Q =Q =3500 =720m /h 1v N

3DN80(Qmax=900m /h)

3 33 kg/m 4 Q min=50m /hv) =8.886

N

3 Q min=50 =242.9Nm /hN

5

50mm 10 2kgf/cm 250

5 a=0.890 b=0.840 ( DN50,1.0MPa),

Qmin=0.890 173=154 kg/h Qmax=0.840 1760=1479kg/h

1) = =8.886Kg/N N

3m

0.1013+0.5

0.1013

273.15+20

273.15+85

Vortex Shedding FlowmeterVortex Shedding Flowmeter

15 20 25 32 40 50 65 80 100 125 150 200 250 300 350 400 450 500

001 0012 002 003 004 005 006 008 010 012 015 020 025 030 035 040 045 050

600

060

700

070

800

080

900

090

1000

100

1100

110

1200

120

1300

130

1400

140

1500

150

1600

160

2000

200

--

--

Vortex Shedding FlowmeterVortex Shedding Flowmeter

9

LUGB

-1

-2

-3

2

3

4

4G

5

-0

-3

-4

N

BX

Y

Z-D

-C

1

2

3

-N

-Bi

-Bd

9

4~20mA

12V DC

24V DC

B

304

316

1.6MPa(DN 125)

2.5MPa(DN65~100)

4.0MPa(DN25~50)

DN50 4~20mA 24V DC

304PN2.5

Vortex Shedding FlowmeterVortex Shedding Flowmeter

LUGBZLUGBZ

LUGB

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

-25 ~100

1.6MPa(DN125~200), 2.5MPa(DN25~100) 2.5MPa

1.5

0.2% 0.2%

LUGB

1V 5V OC

4~20mA

8 5 4

3 4

+18VDC +24VDC

3.6V 1

-30 ~+65

4~20mA -10 ~+55

-20 ~+55

304 316

Vortex Shedding FlowmeterVortex Shedding Flowmeter

25

32

40

50

65

80

100

125

150

200

410

415

420

430

460

480

500

520

550

600

200

200

200

200

230

230

230

250

300

300

DN25~100 GB9115.10~88 PN2.5

DN125 ~ 200 GB9115.9 ~ 88 PN1.6

LUGBZ

N

P

I

Y

Z

-D

-C

1

2

-N

-B

4 20mA

24V DC

304

316

1.6MPa(DN125 200)

2.5MPa(DN25 100)

DN50mm 4~20mA 24V DC 304 PN2.5

0 0 50 0 5 II YY DD 22 NN

L

Vortex Shedding FlowmeterVortex Shedding Flowmeter

DN H

YINHUAN FLOWMETER CO.,LTD.

L

H

25

002

32

003

40

004

50

005

65

006

80

008

100

010

125

012

150

015

200

020

250

025

300

030

STLUSTLU

Vortex Shedding FlowmeterVortex Shedding Flowmeter

STLU

TI MCU

DSP

SOTN( )

1/4~1/3) ( )

g

(DSP)

3DN50 10m /h

1/2 30:1

:

:

: