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氣動調節閥,气动偏心旋转調節閥

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宅男吧名稱: 氣動調節閥,气动偏心旋转調節閥
宅男吧型號: QJ(N/T)Z
宅男吧展商: 其它品牌
宅男吧文檔: 無相關文檔

簡單介紹

QJ(N/T)Z型氣動調節閥,氣動偏心旋轉調節閥(或稱凸輪繞曲調節閥)由偏心旋轉閥,氣動執行機構、閥門定位器、手輪機構組成。


氣動調節閥,气动偏心旋转調節閥  的詳細介紹

一、氣動調節閥,氣動偏心旋轉調節閥概述Outline

QJ(N/T)Z型氣動偏心旋轉調節閥(或稱凸輪繞曲調節閥)由偏心旋轉閥,氣動執行機構、閥門定位器、手輪機構組成。
宅男吧特點如下:

1.閥座磨損小,使用壽命長:球面閥芯回旋中心不與閥杆旋轉軸同心,可減少閥座磨損,延長控制閥壽命;

2.泄漏量小:閥芯和閥座關閉時,閥芯繞臂在執行機構推力作用下産生微小彈性變形及彈性漲緊力,使閥芯與閥座更加緊密牢固,大大地減小泄漏量;

3.執行機構所需扭矩比球閥,蝶閥的小:該宅男吧綜合了單座閥、球閥、蝶閥等控制閥的優點,具有閥體流路簡單,流阻小、額定流量系數大,可調比大、泄漏量小,密封性能好及體積小,重量輕等特點,可廣泛應用于石油石化,冶金,醫藥等宅男吧的控制系統中。

QJ (N / T) Z-type pneumatic rotary valve eccentric (or cam flexing valve) by the eccentric rotary valve, pneumatic actuator, positioner, handwheel agencies.
Product features are as follows:

1 seat wear, long life: the spherical valve swing center is not concentric with the stem axis of rotation, can reduce seat wear and extend the life of the control valve;

(2) a small amount of leakage: the valve core and valve seat is closed, the actuator arm around the spool under the action of small thrust elastic deformation and elastic tensioning force, the valve core and valve seat even more tightly and securely, greatly reducing the amount of leakage ;

3 more than the required torque actuator ball valve, butterfly small: The product combines the single-seat valves, ball valves, butterfly valves and other control benefits, with the valve flow path is simple, small flow resistance, nominal flow coefficient large, adjustable ratio, a small amount of leakage, sealing performance and small size, light weight, can be widely used in petrochemical, metallurgical, pharmaceutical and other industry control systems.

二、氣動調節閥,气动偏心旋转調節閥结构原理Structure principle

氣動偏心旋轉閥閥芯,閥杆作旋轉運動,所以調節閥在工作過程中所受摩擦力很小,當閥芯和閥座相接觸關閉時,閥芯繞臂在執行機構推力作用下産生微小彈性變形及彈性漲緊力,使閥芯與閥座接觸更加緊密牢固,因此偏心旋轉閥泄漏量很小。同時關閉閥門所需的執行機構推力與球閥、蝶閥相比要小。另外在閥芯與上,下導向之間留有一定的間隙以確保閥芯能自動對中。
在偏心旋转阀宅男吧中,省去了阀盖这一单独零件,阀盖与阀体铸成一体,由于阀盖较长,有足够的散热面积,故偏心旋转阀的使用温度为-40~ 350℃。

Eccentric rotary valve pneumatic valve, valve stem for rotation, so valve suffered in the course of friction is very small, when the spool and the valve seat in contact is closed, the actuator arm around the spool under the action of small thrust elastic deformation and elastic tensioning force, the valve with the valve seat even more tightly and securely, so the eccentric rotary valve leakage is very small. At the same time required to close the valve actuator thrust and ball valves, butterfly small compared to. Also in the spool and the upper and lower guide leave enough space between to ensure that the valve can automatically.
In the eccentric rotary valve products, eliminating the need for separate parts of the valve cover, valve cover and valve body cast one, as long bonnet, there is sufficient cooling area, so the eccentric rotary valve operating temperature of -40 ~ 350 ℃.

三、主要技術參數和性能指標The main technical parameters and performance indicators

1.氣動調節閥,气动偏心旋转調節閥主要技術參數Main technical parameters

公稱通徑mm

25

40

50

80

100

150

200

250

300

流量系數Kv

4.8

7.2

12

10.4

15.6

26

17

25

43

46

69

115

78

118

196

171

156

428

290

436

726

444

666

1111

598

898

1496

固有流量特性

Inherent flow characteristic

近似線性(對數、線性等特性必須配用閥門定位器)

Approximately linear (logarithmic, linear and other features must be equipped with valve positioner)

公稱壓力MPa

PN1. 6、 6. 4; ANSI 150、 300 、600

额定行程 Rated travel

轉角50℃

Corner 50 ℃

工作溫度

Temperature℃

-40~ 350

可調比

Adjustable ratio

100:1

执行机构 Executive body

滾動膜片式

Rolling Diaphragm

DL1

DL2

DL3

氣動活塞式

Pneumatic piston

PL1

 

PL2

PL3

PL4

連接形式

Connection form

对夹式(管道法兰JB/T79. 2-94)

Wafer (pipe flange JB/T79. 2-94)

2.性能指標Performance indicators

项 目Item

帶定位器With locator

基本誤差%

Basic error%

±2.0

回 差%

Differential%

2.0

死 区%

Dead%

0.8

始終點偏差%

Always point deviation%

气 开

Open air

始點

Starting point

±2.0

終點End

气 关

Gas off

始點

Starting point

終點End

額定轉角偏差%

Rated angle deviation%

2.5

允許泄漏量L/h

Allowable leakage L / h

ANSI B16 104 IV(硬密封)、VI(软密封)

ANSI B16 104 IV (seal), VI (soft seal)

四、允許壓差Permissible differential pressure

1.硬密封結構Seal structure

閥體口徑(mm)

Kv

氣開流開式

Open-air open flow

氣開流關型或氣關流開型

Open flow gas shut off gas flow-type or open type

氣源壓力Air pressure

 

 

 

0.14

0.18

0.21

0.25

0.28

0.32

0.35

0.39

0.42

0.46

0.49

0.53

25

12

7.0

7.0

 

 

 

 

 

 

4.8

10.2

10.2

 

 

 

 

 

 

40

26

4.7

3.0

5.6

 

 

 

 

 

 

10.4

9.8

6.3

10.2

 

 

 

 

 

 

50

43

2.5

1.6

3.5

4.2

 

 

 

 

 

 

 

17

5.2

3.3

7.0

7.0

 

 

 

 

 

 

 

80

115

2.0

1.3

2.7

4.2

 

 

 

 

 

 

46

4.5

2.8

6.1

7.0

 

 

 

 

 

 

100

196

1.0

0.63

1.4

2.2

3.1

3.9

4.1

 

 

 

 

 

 

78

2.2

1.4

3.0

4.9

6.8

7.0

7.0

 

 

 

 

 

 

150

428

0.63

 

 

0.35

0.91

1.4

2.1

2.5

3.1

3.7

4.2

 

 

0.35

0.91

1.4

2.1

2.5

3.1

3.7

4.2

 

 

0.35

0.91

1.4

2.1

171

1.4

 

 

0.77

2.0

3.2

4.4

5.6

6.8

7.0

 

 

0.77

2.0

3.2

4.4

5.6

6.8

7.0

 

 

0.77

2.0

3.2

3.5

200

726

0.32

 

 

0.18

0.42

0.7

1.0

1.3

1.5

1.8

2.1

2.4

2.5

 

 

0.18

0.42

0.7

1.0

1.3

 

 

0.18

0.42

0.63

436

0.49

 

 

0.28

0.7

1.1

1.5

2.0

2.4

2.8

3.2

3.7

3.9

 

 

0.28

0.7

1.1

1.5

2.0

 

 

0.28

0.7

1.0

290

0.77

 

 

0.42

1.1

1.8

2.5

3.2

3.9

4.5

5.2

5.9

6.3

 

 

0.42

1.1

1.8

2.5

3.2

 

 

0.42

1.0

1.5

 2.氣動調節閥,气动偏心旋转調節閥硬密封結構Seal structure

 

閥體口徑

(mm)

Kv

氣開流開式

Open-air open flow

氣開流關型或氣關流開型

Open flow gas shut off gas flow-type or open type

氣源壓力Air pressure

 

 

 

0.14

0.18

0.21

0.25

0.28

0.32

0.35

0.39

0.42

0.46

0.49

25

12

5.6

5.6

 

 

 

 

 

4.8

7.0

7.0

 

 

 

 

 

40

26

3.5

1.6

4.9

 

 

 

 

 

10.4

7.0

3.7

7.0

 

 

 

 

 

50

43

1.8

0.7

2.6

4.2

 

 

 

 

 

 

17

3.7

1.6

5.3

7.0

 

 

 

 

 

 

80

115

1.4

0.62

2.1

3.5

 

 

 

 

 

46

3.4

1.6

4.8

5.6

 

 

 

 

 

100

196

0.7

0.25

1.1

1.8

2.6

3.4

3.5

 

 

 

 

 

78

1.6

0.7

2.3

4.0

5.6

5.6

5.6

 

 

 

 

 

150

428

0.42

 

 

0.14

0.63

1.2

1.7

2.2

2.7

3.2

3.5

 

 

0.14

0.63

1.2

1.7

2.2

2.7

3.2

3.5

 

 

0.14

0.63

1.2

1.7

2.2

171

1.1

 

 

0.42

1.5

2.7

3.7

4.8

5.6

 

 

0.42

1.5

2.7

3.7

4.8

5.6

 

 

0.42

1.5

2.7

3.7

200

726

0.14

 

 

 

0.28

0.52

0.77

1.1

1.3

1.5

1.8

2.1

 

 

 

0.28

0.52

0.77

1.1

1.3

 

 

 

0.28

0.52

0.63

436

0.28

 

 

 

0.46

0.84

1.2

1.6

2.0

2.4

2.8

3.2

 

 

 

0.46

0.84

1.2

1.6

2.0

 

 

 

0.46

0.84

0.96

290

0.49

 

 

 

0.77

1.4

2.0

2.6

3.2

3.8

4.4

4.9

 

 

 

0.77

1.4

2.0

2.6

3.2

 

 

 

0.77

1.4

1.5

五、氣動調節閥,气动偏心旋转調節閥外形尺寸及重量Dimensions and weight

閥體口徑

(mm)

A

B

C

D

E

F

G

H

J

K

L

重量(kg)

無法蘭

Not blue

無法蘭

Not blue

25

102

173

297

208

163

140

110

67

206

38

137

12

40

114

175

300

211

163

140

110

62

234

51

165

14

50

124

175

300

211

163

140

110

62

239

66

170

16

80

165

262

434

229

163

175

118

97

333

84

244

35

100

194

264

437

229

163

175

118

106.5

356

109

267

48

150

229

330

533

302

254

128

197

127

432

147

323

86

200

243

333

536

305

254

128

197

147

470

203

361

127

250

297

335

538

310

254

128

197

167

574

251

465

156

300

338

338

541

312

254

128

197

184

610

277

500

184

 

六、可配附件Available Accessories

根據工藝要求可配電氣轉換器(或電-氣閥門定位器)、空氣過濾減壓器、保位閥、行程開關、電磁閥等。

According to process requirements can be equipped with electrical converter (or electric - gas valve positioner), air filter regulator, to secure his position valve, limit switch, solenoid valve.

 

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