一、气动调节阀,气动偏心旋转调节阀概述Outline
QJ(N/T)Z型气动偏心旋转调节阀(或称凸轮绕曲调节阀)由偏心旋转阀，气动执行机构、阀门定位器、手轮机构组成。
产品特点如下：
1.阀座磨损小，使用寿命长：球面阀芯回旋中心不与阀杆旋转轴同心，可减少阀座磨损，延长控制阀寿命；
2.泄漏量小：阀芯和阀座关闭时，阀芯绕臂在执行机构推力作用下产生微小弹性变形及弹性涨紧力，使阀芯与阀座更加紧密牢固，大大地减小泄漏量；
3.执行机构所需扭矩比球阀，蝶阀的小：该产品综合了单座阀、球阀、蝶阀等控制阀的优点，具有阀体流路简单，流阻小、额定流量系数大，可调比大、泄漏量小，密封性能好及体积小，重量轻等特点，可广泛应用于石油石化，冶金，医药等行业的控制系统中。
二、气动调节阀,气动偏心旋转调节阀结构原理Structure principle
气动偏心旋转阀阀芯，阀杆作旋转运动，所以调节阀在工作过程中所受摩擦力很小，当阀芯和阀座相接触关闭时，阀芯绕臂在执行机构推力作用下产生微小弹性变形及弹性涨紧力，使阀芯与阀座接触更加紧密牢固，因此偏心旋转阀泄漏量很小。同时关闭阀门所需的执行机构推力与球阀、蝶阀相比要小。另外在阀芯与上，下导向之间留有一定的间隙以确保阀芯能自动对中。
在偏心旋转阀产品中，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℃。
三、主要技术参数和性能指标The main technical parameters and performance indicators
1.气动调节阀,气动偏心旋转调节阀主要技术参数Main technical parameters
|
公称通径mm |
25 |
40 |
50 |
80 |
100 |
150 |
200 |
250 |
300 |
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|
流量系数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 |
近似线性(对数、线性等特性必须配用阀门定位器) Approximately linear (logarithmic, linear and other features must be equipped with valve positioner) |
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公称压力MPa |
PN1. 6、 6. 4； ANSI 150、 300 、600 |
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额定行程 Rated travel |
转角50℃ Corner 50 ℃ |
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工作温度 Temperature℃ |
-40~ 350 |
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可调比 Adjustable ratio |
100:1 |
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执行机构 Executive body |
滚动膜片式 Rolling Diaphragm |
DL1 |
DL2 |
DL3 |
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气动活塞式 Pneumatic piston |
PL1 |
PL2 |
PL3 |
PL4 |
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连接形式 Connection form |
对夹式(管道法兰JB/T79. 2-94) Wafer (pipe flange JB/T79. 2-94) |
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2.性能指标Performance indicators
|
项 目Item |
带定位器With locator |
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|
基本误差% Basic error% |
±2.0 |
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|
回 差% Differential% |
2.0 |
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|
死 区% Dead% |
0.8 |
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|
始终点偏差% Always point deviation% |
气 开 Open air |
始点 Starting point |
±2.0 |
|
终点End |
|||
|
气 关 Gas off |
始点 Starting point |
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|
终点End |
|||
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额定转角偏差% Rated angle deviation% |
2.5 |
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|
允许泄漏量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) |
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四、允许压差Permissible differential pressure
1.硬密封结构Seal structure
|
阀体口径(mm) |
Kv |
气开流开式 Open-air open flow |
气开流关型或气关流开型 Open flow gas shut off gas flow-type or open type |
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|
气源压力Air pressure |
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|
|
|
|
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 |
— |
— |
— |
— |
— |
— |
— |
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2.气动调节阀,气动偏心旋转调节阀硬密封结构Seal structure
|
阀体口径 (mm) |
Kv |
气开流开式 Open-air open flow |
气开流关型或气关流开型 Open flow gas shut off gas flow-type or open type |
||||||||||
|
气源压力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 |
— |
— |
— |
— |
— |
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五、气动调节阀,气动偏心旋转调节阀外形尺寸及重量Dimensions and weight
|
阀体口径
(mm) |
A |
B |
C |
D |
E |
F |
G |
H |
J |
K |
L |
重量(kg) |
|
无法兰 Not blue |
无法兰 Not blue |
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|
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
根据工艺要求可配电气转换器(或电-气阀门定位器)、空气过滤减压器、保位阀、行程开关、电磁阀等。
