碳钢闸阀、截止阀的阀杆推力、操作扭矩及手轮圆周力的简易计算

1、闸闸阀阀截截止止阀阀阀阀杆杆推推力力的的计计算算表表1 1 阀阀门门阀阀座座孔孔面面积积名称符号数据单位备注 通径in压力等级Mpa（psig）阀杆推力F48223.072 N 牛顿F=f1+f2+f3PN2.0(285)PN5.0(740)PN6.8(990)PN10.0(1480)PN15.0(2220)作用在阀座上的推力f141229.672 N 牛顿f1=MP阀门系数dMdMdMdMd阀门阀座孔面积M47119.625 mm2M=（阀座孔直径）23.14/4 1/213132.713132.713132.713132.713如果不知道阀座孔直径d，可以用阀门流道直径来作为估计值。阀门阀

2、座孔面积见表1中M。 3/419283.519283.519283.519283.519阀座孔直径d245 mm1 25490.925490.925490.925490.925阀门最大压差P2.5 MpaP=P1-P21-1/432804.232804.232804.232804.232阀门上游压力P12.5 Mpa如果不知道P1,P2值，P可取表1中压力值（Mpa）1-1/2381134.1381134.1381134.1381134.138阀门下游压力值P22.5 Mpa2491885.7491885.7491885.7491885.749阀门系数表20.35阀门系数见表22-1/2623

3、019.1623019.1623019.1623019.162阀杆载荷（阀杆的活塞效应） f22543.4 N 牛顿f2=(df23.14/4)阀门上游最大的压力3744300.8744300.8744300.8744300.874阀门阀杆最小直径df36 mm见表341007854.01007854.01007854.01007854100如果不知道阀门上游最大最压力P1值（如管道压力不大于6.89MPa时，阀杆载荷f2可忽略不计可取表1中压力值（Mpa)来进行计算。512712667.812712667.812712667.812712667.8127阀杆填料摩擦力f34450 N 牛顿具

4、体数据见表4615017671.515017671.515017671.515017671.5150阀阀门门扭扭矩矩820131730.920131730.920131730.920131730.9201扭矩M162.51175 N.m 牛顿.米M=阀杆推力F阀杆系数1025249875.925249875.925249875.925249875.9252阀杆推力F48223.072 N 牛顿F=f1+f2+f31230372106.630372106.630372106.630372106.6303阀杆系数0.00337 m 米阀杆系数见表51433487615.933487615.9334

5、87615.933487615.9322手手轮轮圆圆周周力力16385116415.6385116415.6385116415.6385116415.6373手轮圆周力FsN 牛顿Fs=M/R18 436149301.0436149301.0436149301.0436149301423 手轮半径Rmm 毫米20 487186272.1487186272.1487186272.1487186272.147122 538227328.8538227328.8538227328.8538227328.852224 589272471.1589272471.1589272471.1589272471

6、.1570表表4 4 填填料料摩摩擦擦推推力力和和转转矩矩及及阀阀杆杆的的活活塞塞效效应应26 633314700.4633314700.4633314700.4633314700.4617摩擦推力（升降杆）阀杆直径1(25毫米）以下12(2550毫米）2(50毫米）以上28 684367453.2684367453.2684367453.2684367453.2665推力4450N 牛顿6670N 牛顿11120N 牛顿30 735424291.7735424291.7735424291.7735424291.7712活塞效应（明杆阀阀杆载荷）如果管道压力超过6.897MPa，应加入介质对阀

7、杆的腿力（活塞效应），介质对阀杆的推力=管道压力阀杆面积（通过填料压盖处）32 779476611.8779476611.8779476611.8779476611.876034 830541060.8830541060.8830541060.8830541060.8808摩擦转矩摩擦转矩=摩擦力阀杆半径（在填料压盖处的半径）36 874599946.8874599946.8874599946.8874599946.885538 925672006.3925672006.3925672006.3925672006.340 976748151.4976748151.4976748151.4976

8、748151.442 1020817128.21020817128.21020817128.21020817128.248 11661067792.711661067792.711661067792.711661067792.7截止阀扭矩=推力*阀杆摩擦系数（查表）*安全系数54413121351940.413121351940.413121351940.4推力=3.14*口径平方*压力）/4= N56413601452672.413601452672.413601452672.4闸阀是截止阀的0.456011458

9、1669571.114581669571.114581669571.1注：1）表中的d为阀门阀座直径（mm）；M为流通面积（mm2） 2）阀门最大压差P可以取表中压力值（Mpa）表表2 2 阀阀门门系系数数阀门类型液体400以下400以上平行式闸阀和弹性楔式闸阀或双闸板0.250.3刚性楔式闸阀0.350.42(50毫米）以上截止阀1.151.152（50毫米）以下截止阀1.51.5表表 5 5 梯梯形形螺螺纹纹阀阀杆杆系系数数阀杆尺寸直径螺距/mmmm阀杆系数/m阀杆尺寸直径螺距/mmmm阀杆系数/m1030.001114680.004351230.001254880.004491430.0

10、01405080.004641630.001545280.004781640.001675580.005001840.001816080.005362040.0019565100.005982250.0022370100.006342450.0023875100.006702650.0025280100.007062850.0026685120.007683060.0029490120.008043260.0030895120.008403460.00323100120.008763660.00337110120.009483860.00351120160.010724060.00366426

11、0.003804480.00420通径in表表3 3 阀阀杆杆的的大大小小 压压力力等等级级MpaMpa（psigpsig）通径mmPN2.0(MPa)PN5.0(MPa)PN6.8(MPa)PN10.0(MPa)PN25.0(3705)PN42.0(6170)MdMdM 1/211.111.1132.713132.713132.7DN15 3/412.712.7283.519283.519283.5DN201 15.915.915.915.915.915.915.915.9490.925490.925490.9DN251-1/415.915.915.915.915.915.915.915.9

12、804.232804.232804.2DN321-1/217.517.519.019.019.019.019.019.01134.1381134.1381134.1DN40219.019.019.019.019.019.019.019.01885.7491885.7421385.4DN502-1/219.019.022.219.022.222.222.222.23019.1623019.1522123.7DN65322.222.225.422.225.425.425.425.44300.8744300.8623019.7DN80425.425.428.625.428.628.628.631.8

13、28.628.67854.01007854.0875944.7DN100512667.81119676.9926647.6DN125628.628.631.831.835.034.934.938.138.138.117671.51441628613113478.2DN150831.831.835.034.938.138.138.141.341.341.331730.919228952.917925164.9DN2001034.934.938.138.141.344.444.447.647.647.649875.923944862.722339057.1DN2501238.138.141.341

14、.344.447.647.650.850.850.872106.628764692.526555154.6DN3001441.341.344.444.447.647.657.257.281433.231577931.124145616.7DN3501644.444.447.647.650.850.860.360.3109271.7360101787.627458964.6DN40018 47.647.650.857.257.263.563.5140530.537110810331175964.5DN45020 50.850.854.063.563.569.869.8174233.5415135

15、265.234392401.3DN50022 214008.4457164029.6378112220.8DN55024 57.257.263.569.869.876.276.2255175.9498194781.9413133964.6DN60026 60.369.8298992.4540229022.1448157632.6DN65028 63.576.2347322.7584267864.8483183224.8DN70030 63.582.6398152.9625306796.2517209928.3DN75032 453646.0DN80034 512758.2DN85036 69.

16、888.9574145.7DN90038 DN95040 DN100042 82.6101.6DN105048 DN120054 DN135056 DN140060 DN1500气体400以下400以上0.350.45表表1 1 阀阀门门阀阀座座孔孔面面积积压力等级Mpa（psig）PN15.0(2220)注：1）表中的d为阀门阀座直径（mm）；M为流通面积（mm2） 2）阀门最大压差P可以取表中压力值（Mpa）表表2 2 阀阀门门系系数数液体400以上0.30.450.51.151.151.51.50.41.151.5通径mmPN15.0(MPa)PN25.0(MPa)PN42.0(MPa)

17、13.512.715.9DN1515.915.919.0DN2015.919.019.019.019.019.019.025.4DN2519.019.019.019.022.219.019.028.6DN3219.022.222.222.225.422.222.231.8DN4022.225.425.425.428.625.425.438.1DN5025.428.628.628.631.828.628.641.3DN6528.628.628.631.831.831.835.031.831.844.4DN8031.831.831.835.034.934.938.134.934.950.8DN10

18、0DN12541.341.341.344.444.444.450.847.647.663.5DN15044.447.647.650.854.054.057.260.360.376.2DN20050.854.054.057.263.563.566.773.073.088.9DN25054.057.257.260.369.869.873.082.682.695.2DN30060.360.363.576.276.279.4DN35063.563.582.676.2DN40076.276.295.2DN45082.6108.0DN500DN550101.6127.0DN600DN650DN700DN7

19、50DN800DN850DN900DN950DN1000DN1050DN1200DN1350DN1400DN1500表表3 3 阀阀杆杆的的大大小小 压压力力等等级级MpaMpa（psigpsig）PN10.0(MPa)表表1 1 阀阀门门阀阀座座孔孔面面积积通径in压力等级Mpa（psig）通径mmPN2.0(285)PN5.0(740)PN6.8(990)PN10.0(1480)PN15.0(2220) PN25.0(3705) PN42.0(6170)dMdMdMdMdMdMdM 1/213132.713132.713132.713132.713132.713132.713132.7DN

20、15 3/419283.519283.519283.519283.519283.519283.519283.5DN201 25490.925490.925490.925490.925490.925490.925490.9DN251-1/432804.232804.232804.232804.232804.232804.232804.2DN321-1/2381134.1381134.1381134.1381134.1381134.1381134.1381134.1DN402491885.7491885.7491885.7491885.7491885.7491885.7421385.4DN502-

21、1/2623019.1623019.1623019.1623019.1623019.1623019.1522123.7DN653744300.8744300.8744300.8744300.8744300.8744300.8623019.7DN8041007854.01007854.01007854.010078541007854.0100 7854.0875944.7DN100512712667.812712667.812712667.812712667.8 12712667.81119676.9926647.6DN125615017671.515017671.515017671.51501

22、7671.5 15017671.51441628613113478.2DN150820131730.920131730.920131730.920131730.9 20131730.9192 28952.917925164.9DN2001025249875.925249875.925249875.925249875.9 25249875.9239 44862.722339057.1DN2501230372106.630372106.630372106.630372106.6 30372106.6287 64692.526555154.6DN3001433487615.933487615.933

23、487615.933487615.9 32281433.2315 77931.124145616.7DN35016385116415.6385116415.6385116415.6385116415.6 373 109271.7360 101787.6 27458964.6DN40018 436149301.0436149301.0436149301.0436149301423 140530.537110810331175964.5DN45020 487186272.1487186272.1487186272.1487186272.1 471 174233.5415 135265.2 3439

24、2401.3DN50022 538227328.8538227328.8538227328.8538227328.8 522 214008.4457 164029.6 378 112220.8DN55024 589272471.1589272471.1589272471.1589272471.1 570 255175.9498 194781.9 413 133964.6DN60026 633314700.4633314700.4633314700.4633314700.4 617 298992.4540 229022.1 448 157632.6DN65028 684367453.268436

25、7453.2684367453.2684367453.2 665 347322.7584 267864.8 483 183224.8DN70030 735424291.7735424291.7735424291.7735424291.7 712 398152.9625 306796.2 517 209928.3DN75032 779476611.8779476611.8779476611.8779476611.8 760 453646.0DN80034 830541060.8830541060.8830541060.8830541060.8 808 512758.2DN85036 874599

26、946.8874599946.8874599946.8874599946.8 855 574145.7DN90038 925672006.3925672006.3925672006.3925672006.3DN95040 976748151.4976748151.4976748151.4976748151.4DN100042 1020 817128.21020817128.21020817128.21020 817128.2DN105048 1166 1067792.71166 1067792.71166 1067792.71166 1067792.7DN120054 1312 1351940

27、.41312 1351940.41312 1351940.41312 1351940.4DN135056 1360 1452672.41360 1452672.41360 1452672.41360 1452672.4DN140060 1458 1669571.11458 1669571.11458 1669571.11458 1669571.1DN1500注：1）表中的d为阀门阀座直径（mm）；M为流通面积（mm2） 2）阀门最大压差P可以取表中压力值（Mpa）通径in压力等级Mpa（psig）通径mmPN2.0(MPa)PN5.0(MPa)PN6.8(MPa)PN10.0(MPa)PN15

28、.0(MPa)PN25.0(MPa)PN42.0(MPa) 1/211.111.113.512.715.9DN15 3/412.712.715.915.919.0DN201 15.9 15.915.915.915.915.915.915.915.919.019.019.019.019.019.025.4DN251-1/415.9 15.915.915.915.915.915.915.919.019.019.019.022.219.019.028.6DN321-1/217.5 17.519.019.019.019.019.019.019.022.222.222.225.422.222.231.8

29、DN40219.0 19.019.019.019.019.019.019.022.225.425.425.428.625.425.438.1DN502-1/219.0 19.022.219.022.222.222.222.225.428.628.628.631.828.628.641.3DN65322.2 22.225.422.225.425.425.425.428.628.628.631.831.831.835.031.831.844.4DN80425.4 25.428.625.428.628.628.631.828.628.631.831.831.835.034.934.938.134.9

30、34.950.8DN1005DN125628.6 28.631.831.835.034.934.938.138.138.141.341.341.344.444.444.450.847.647.663.5DN150831.8 31.835.034.938.138.138.141.341.341.344.447.647.650.854.054.057.260.360.376.2DN2001034.9 34.938.138.141.344.444.447.647.647.650.854.054.057.263.563.566.773.073.088.9DN2501238.1 38.141.341.344.447.647.650.850.850.854.057.257.260.369.869.873.082.682.695.2DN3001441.3 41.344.444.447.647.657.257.260.360.363.576.276.279.4DN3501644