Hydropower plant water intake hydraulic counterweight butterfly valve

Group Butterfly valve
Min. Order 1 piece
Terms of Payment all
Update Time 2017-06-12
Item specifics
Medium Temperature-5℃-+60℃
MediumWater
Valve Open Time90-120s adjustable
Valve Close Time65-90% closed in 60s,Fully in 90-240s(Adjustable)
Max Pressure of Hydraulic System16MPa
Leakage0
Flow Resistance Coefficient≤0.09
Description

Parameters

Nominal Diameter

300-6000mm

Nominal Pressure

0.6

1.0

1.6

2.5

 

MPa

Seal Test Pressure

0.66

1.1

1.76

2.75

Strength Test Pressure

0.9

1.5

2.4

3.75

Medium Temperature

+5~+60

Suitable Medium

Water

Valve Open Time

60-120s Adjustable

Valve Close Time

Close 65%-90% within 60s(Adjustable), Fully closed within 90-240s( Adjustable)

Hydraulic System Max Pressure

16.0MPa

Leakage

0

Flow Resistance Coefficient

0.09


Material

 

Name

Material

 

 

Main Valve Body

Valve Body

Carbon Steel Q345

Disc

Carbon Steel Q345

Stem

45# Steel( surfacing anti-corrosion treatment) or Stainless Steel 2Cr13

Dynamic Sealing Ring

Stainless Steel 1Cr18Ni9Ti

Static Sealing Ring

Ductile Iron Surfacing CrCow

 

Bypass Valve

Valve BodyValve Core

Cast Steel WCB

Sealing Surface

Stainless Steel 1Cr18Ni9Ti

Stem

Stainless Steel 2Cr13

Expansion Joint

Expansion Seat

Cast Steel WCB

Expansion Pipe

Carbon Steel Q345


Turbine set inlet hydraulic butterfly valve is generally used at the entrance of hydropower station or pumped storage power station turbine set with water head higher than 250M. the whole valve set includes upstream and downstream connecting pipe, valve body, expansion joints, bypass valve, exhaust valve, etc., Design in line with GB / T14478-1993 "large medium-sized turbine inlet valve basic technical conditions" requirement. Its role is:


1, When a main water supply pipe supplies water to several turbine sets, one of them need to be inspected and repaired, to cut off the flow without affecting the operation of other units.


2, When meeting with turbine set speed system accident, the turbine set speed increases to set value, the valve will be emergency shut down to prevent the accident from expanding.


3, When the turbine set stopped working for a long time, to cut off the upstream water, in order to reduce the guide vane leakage, to prevent the unit peristalsis. 



1, The valve is suitable for a wide range of water head, the max water head is up to 1000 meters.


2, After the valve is fully open, the flow path is full diameter straight flow type, the hydraulic loss is small, no cavitation damage when working.


3, Valve closing is light, you can achieve zero leakage standards.


4, Valve is equipped with a working seal and inspection/ repairing seal, When inspection and repairing seal works, we could inspect and repair working seal and shaft end seal, without venting the water in pressure pipe before valve. When inspection and repairing seal works, the valve is equipped with hydraulic locking and manual locking, to ensure absolute safety during maintenance. The valve does not need to install a special repair valve, can save the project investment costs.


5, The hydraulic system uses energy storage tank technology, In the case of emergency power failure, the valve will be closed, to ensure the safety of whole turbine set system.


6, Uses self-regulating shaft seal; uses lead-free self-lubricating bearings. The seal box and shaft end supports are designed as components that are mounted outside the valve flow path, easy to disassemble and repair.


7, PLC programmable logic controller can be used as the electrical control part, to greatly simplify the electrical circuit and according to different working condition requirements, only need to change the program, do not need to change the line, with high versatility. At the same time, the use of PLC makes the valve has self-diagnostic function, and easy to connect to central control room computer.


8, Valve has automatic clean function to the weeds, mud, dirt and other dirt attached in the valve sealing surface. Sealing surface service life is long. 

Working procedure


1 Open Valve
Open bypass valve--Release hydraulic lock--Release working seal--Fully open main valve core--Close bypass valve


2 Close Valve
Fully close main valve core-- Working seal works-- Hydraulic lock works


Working Principle


1. Open valve: start oil pump motor set, oil pump transfers pressure oil into the storage tank to the rated pressure and then stop. Open the bypass valve, water flows into shell, the exhaust valve will automatically exhaust. When the main valve inlet and outlet pressure difference reaches the set value, the hydraulic lock solenoid valve will work, lock release, work seal oil pressure will also release. At this point the valve open solenoid valve will work, the pressure oil is transferred into the main oil cylinder rodless chamber, the piston rod drives the valve shaft to rotate, the main valve core will rotate 90 ° to fully open. Close the bypass valve.


2. Close Valve: Close valve solenoid valve will work, the pressure oil is transferred into the main oil cylinder rod chamber, the main oil cylinder rodless chamber will drain, valve core closed. And then working seal works, the hydraulic lock solenoid valve will work, hydraulic locking works.


3. In the process of closing valve, the operating procedures are controlled by linkage signal, valve open and close time can be adjusted by the adjusting and controlling valve in hydraulic circuit. 


0.6MPa

DN

(mm)

D

D1

b

L

L1

L2

L3

L4

L5

E

E1

E2

E3

E4

E5

E6

Z-φ

φ1

H

H1

H2

K

Motor Power (KW)

Anchor

Bolts

Weight (kg)

1000

1175

1120

26

550

930

200

360

245

335

1442

1105

740

830

765

1375

2450

28-30

620

620

1087

430

550

5.5

4-M30

3500

1200

1405

1340

28

630

970

260

420

245

335

1450

1224

790

945

850

1505

2600

32-33

620

710

1060

385

425

5.5

4-M30

4200

1250

1455

1390

30

630

970

260

420

245

335

1442

1250

790

970

900

1520

2720

32-33

620

800

1087

415

350

7.5

4-M30

5000

1400

1630

1560

32

710

1010

260

500

245

335

1450

1318

840

960

960

1597

2800

36-36

620

820

1060

385

300

5.5

4-M30

5900

1600

1830

1760

34

790

1050

260

540

245

335

1450

1418

960

1080

1070

1698

3140

40-36

620

920

1060

385

200

5.5

4-M36

7500

1750

1995

1920

36

870

1070

270

450

245

335

1890

1575

1350

1500

1215

1845

3445

44-39

760

1070

1250

450

265

7.5

4-M46

8500

1800

2045

1970

36

870

1090

270

450

245

335

1890

1600

1370

1510

1220

1869

3500

44-39

642

1035

1060

395

100

7.5

4-M39

9000

2000

2265

2180

38

950

1160

360

590

245

335

1890

1855

1370

1650

1380

2140

3750

48-42

760

1150

1250

450

200

7.5

4-M36

11600

2200

2475

2390

42

800

1160

500

790

245

335

1890

1927

1600

1900

1556

2242

4120

52-42

760

1360

1250

450

410

7.5

4-M36

12000

2250

2620

2490

55

860

1190

600

840

300

390

1891

1939

1600

1880

1630

2283

4235

52-52

800

1380

1292

255

200

7.5

4-M24

14050

2400

2685

2600

44

980

1160

500

800

245

335

1890

2088

2040

2250

1710

2400

4500

56-42

760

1380

1250

450

397

7.5

4-M36

14050

2500

2800

2700

50

980

1260

360

800

245

335

2168

2080

2000

2280

1710

2367

4320

56-48

760

1450

1250

705

100

7.5

4-M36

15000

2800

3115

3020

48

880

970

620

870

300

390

2168

2064

2350

2670

2010

2640

4900

64-42

780

1700

1428

450

172

7.5

4-M42

19000

3200

3535

3430

60

980

 

600

960

300

390

1890

2469

2550

2800

2830

2813

5660

72-48

860

2020

100

 

705

11

4-M42

33500

4000

4425

4300

80

1200

 

750

1160

450

600

2200

3000

3300

3600

3420

3375

7000

84-62

1100

2000

400

 

915

15

4-M42

55000

4800

5280

5100

80

1400

 

1000

1360

450

600

2485

3380

3900

4300

3950

3910

7900

102-62

1100

2750

250

 

1290

15

4-M42

80000


1.0MPa

DN

(mm)

D

D1

b

L

L1

L2

L3

L4

L5

E

E1

E2

E3

E4

E5

E6

Z-0

01

H

H1

H2

K

Motor Power (KW )

Anchor

Bolts

Weight

(kg)

1000

1230

1160

34

550

920

200

360

245

335

1450

1106

740

830

740

1354

2400

28-36

620

620

1060

460

500

5.5

4-M30

3850

1200

1455

1380

38

630

970

260

440

245

335

1450

1224

790

940

850

1464

2600

32-39

620

740

1060

370

410

5.5

4-M36

4800

1250

1510

1430

42

630

970

260

420

245

335

1442

1250

790

970

900

1520

2720

32-39

620

800

1087

415

350

5.5

4-M36

5000

1400

1675

1590

42

710

1010

260

400

245

335

1885

1214

840

960

1135

1493

2800

36-42

642

850

1060

385

270

5.5

4-M36

6700

1600

1915

1820

46

790

1080

270

500

245

335

1890

1570

960

1100

1140

1857

3200

40-48

760

970

1250

450

350

5.5

4-M36

8400

1750

2100

1950

50

870

1070

270

450

245

335

1890

1690

1350

1560

1270

2005

3340

48-45

760

1070

1250

450

250

7.5

4-M36

9100

1800

2115

2020

50

870

1120

440

860

245

335

1890

1710

1370

1600

1320

1995

3500

44-48

760

1100

1250

450

220

7.5

4-M36

9800

2000

2325

2230

54

950

1160

460

640

245

335

1890

1790

1400

1700

1460

1420

2150

48 - 48

760

1200

1250

537

220

7.5

4-M36

12800

2200

2550

2440

58

800

1160

500

780

300

390

1891

1929

1560

1750

1600

2273

4195

52-52

800

1450

1292

370

200

7.5

4-M36

13000

2250

2620

2490

60

980

1170

400

600

300

390

1890

1979

1600

1880

1496

2290

4100

52-56

1000

1380

1250

600

80

7.5

4-M36

13400

2400

2760

2650

60

980

1160

450

650

300

390

1891

2024

1800

2100

1650

2368

4410

56-56

800

1600

1436

475

100

7.5

4-M36

15900

2500

2865

2750

60

980

1160

700

970

300

390

2155

1969

2000

2280

1750

2313

4455

56-56

860

1550

1428

250

150

7.5

4-M36

16000

2600

2960

2850

60

980

1160

800

990

300

390

2168

2159

2150

2470

1855

2505

4660

60-52

780

1555

1436

220

140

7.5

4-M36

20000

3000

3405

3220

60

980

1160

620

980

300

390

2155

2384

2550

2800

2010

2728

4838

68 - 56

860

1900

250

580

100

7.5

6-M42

24000

3500

3950

3810

70

980

 

600

980

300

390

1860

2784

3000

3300

3082

3128

6397

60-62

860

2180

250

 

1020

11

6-M42

36500

3600

4005

3890

80

1200

 

800

1170

300

390

1860

2724

2800

3200

3030

3068

6200

72-62

860

2250

250

 

1090

11

6-M42

37000

3800

4250

4120

80

1200

 

750

1160

300

390

1860

2824

3300

3600

3122

3168

6300

72-62

860

2150

250

 

980

11

6—M42

38000

4200

4615

4500

80

1300

 

900

1260

450

600

2485

3130

3200

3600

3515

3660

7410

88-62

1100

2560

250

 

1060

15

6-M42

65000

4400

4880

4700

80

1400

 

1000

1380

450

600

2485

3180

3700

4000

3730

3710

7460

88-56

1100

2400

250

 

885

15

6-M42

67000

5300

5730

5600

80

1400

 

950

1410

500

620

2518

3415

4030

4330

 

3415

 

120-65

 

 

 

 

 

22

 

120000


1.6MPa

DN

(mm)

D

D1

b

L

L1

L2

L3

L4

L5

E

E1

E2

E3

E4

E5

E6

Z-0

01

H

H1

H2

K

Motor Power (KW )

Anchor

Bolts

Weight (kg )

1000

1255

1170

42

550

950

200

360

245

335

1450

1120

740

830

765

1388

2470

28-42

620

640

1087

380

480

5.5

4-M30

4500

1200

1485

1390

48

630

990

260

420

245

335

1450

1220

790

945

890

1496

2660

32-48

620

760

1087

400

380

5.5

4-M30

5200

1250

1540

1440

52

630

990

260

420

245

335

1450

1230

790

930

980

1595

2810

32-48

620

800

1087

450

385

7.5

4-M30

5800

1400

1685

1590

52

710

1050

320

480

245

335

1890

1410

900

1020

1060

1680

2960

36-48

620

900

1070

470

305

7.5

4-M30

7100

1600

1930

1820

58

790

1100

270

500

245

335

1890

1525

1100

1300

1230

1805

3300

40-56

760

1050

1237

455

275

7.5

4-M36

8500

1750

2080

1970

60

870

1130

360

560

300

390

1900

1692

1380

1600

1365

2036

3630

44-56

800

1100

1292

85

270

7.5

4-M36

9300

1800

2130

2020

62

870

1130

270

450

300

390

1900

1729

1370

1510

1320

2073

3630

44-56

800

1100

1292

85

270

7.5

4-M36

9500

2000

2345

2230

66

850

1130

500

810

300

390

2160

1814

1700

2000

1490

2158

3800

48-62

860

1250

1436

80

258

7.5

4-M36

9800

2250

2620

2490

70

860

1130

600

850

300

390

2160

1979

1600

1880

1630

2323

4220

52-62

860

1380

1436

80

125

7.5

4-M36

10000

2500

2865

2750

70

980

1300

700

970

300

390

2160

2109

2000

2280

2500

2453

5000

56-56

860

1650

100

 

325

11

4-M42

26000

3000

3410

3290

80

980

1300

620

980

300

390

2160

2469

2550

2800

2860

2813

5720

68-62

860

1900

100

 

575

11

4-M42

30000

3200

3625

3500

80

980

1300

600

960

300

390

1890

2469

2550

2800

2830

2813

5660

72-62

860

2020

100

 

705

11

4-M42

32000