碳鋼閘閥、截止閥的閥桿推力、操作扭矩及手輪圓周力的簡易計算

1、閘閘閥閥截截止止閥閥閥閥桿桿推推力力的的計計算算表表1 1 閥閥門門閥閥座座孔孔面面積積名稱符號數(shù)據(jù)單位備注 通徑in壓力等級Mpa（psig）閥桿推力F48223.072 N 牛頓F=f1+f2+f3PN2.0(285)PN5.0(740)PN6.8(990)PN10.0(1480)PN15.0(2220)作用在閥座上的推力f141229.672 N 牛頓f1=MP閥門系數(shù)dMdMdMdMd閥門閥座孔面積M47119.625 mm2M=（閥座孔直徑）23.14/4 1/213132.713132.713132.713132.713如果不知道閥座孔直徑d，可以用閥門流道直徑來作為估計值。閥門閥

2、座孔面積見表1中M。 3/419283.519283.519283.519283.519閥座孔直徑d245 mm1 25490.925490.925490.925490.925閥門最大壓差P2.5 MpaP=P1-P21-1/432804.232804.232804.232804.232閥門上游壓力P12.5 Mpa如果不知道P1,P2值，P可取表1中壓力值（Mpa）1-1/2381134.1381134.1381134.1381134.138閥門下游壓力值P22.5 Mpa2491885.7491885.7491885.7491885.749閥門系數(shù)表20.35閥門系數(shù)見表22-1/2623

3、019.1623019.1623019.1623019.162閥桿載荷（閥桿的活塞效應(yīng)） f22543.4 N 牛頓f2=(df23.14/4)閥門上游最大的壓力3744300.8744300.8744300.8744300.874閥門閥桿最小直徑df36 mm見表341007854.01007854.01007854.01007854100如果不知道閥門上游最大最壓力P1值（如管道壓力不大于6.89MPa時，閥桿載荷f2可忽略不計可取表1中壓力值（Mpa)來進(jìn)行計算。512712667.812712667.812712667.812712667.8127閥桿填料摩擦力f34450 N 牛頓具

4、體數(shù)據(jù)見表4615017671.515017671.515017671.515017671.5150閥閥門門扭扭矩矩820131730.920131730.920131730.920131730.9201扭矩M162.51175 N.m 牛頓.米M=閥桿推力F閥桿系數(shù)1025249875.925249875.925249875.925249875.9252閥桿推力F48223.072 N 牛頓F=f1+f2+f31230372106.630372106.630372106.630372106.6303閥桿系數(shù)0.00337 m 米閥桿系數(shù)見表51433487615.933487615.9334

5、87615.933487615.9322手手輪輪圓圓周周力力16385116415.6385116415.6385116415.6385116415.6373手輪圓周力FsN 牛頓Fs=M/R18 436149301.0436149301.0436149301.0436149301423 手輪半徑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轉(zhuǎn)轉(zhuǎn)矩矩及及閥閥桿桿的的活活塞塞效效應(yīng)應(yīng)26 633314700.4633314700.4633314700.4633314700.4617摩擦推力（升降桿）閥桿直徑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 牛頓6670N 牛頓11120N 牛頓30 735424291.7735424291.7735424291.7735424291.7712活塞效應(yīng)（明桿閥閥桿載荷）如果管道壓力超過6.897MPa，應(yīng)加入介質(zhì)對閥

7、桿的腿力（活塞效應(yīng)），介質(zhì)對閥桿的推力=管道壓力閥桿面積（通過填料壓蓋處）32 779476611.8779476611.8779476611.8779476611.876034 830541060.8830541060.8830541060.8830541060.8808摩擦轉(zhuǎn)矩摩擦轉(zhuǎn)矩=摩擦力閥桿半徑（在填料壓蓋處的半徑）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截止閥扭矩=推力*閥桿摩擦系數(shù)（查表）*安全系數(shù)54413121351940.413121351940.413121351940.4推力=3.14*口徑平方*壓力）/4= N56413601452672.413601452672.413601452672.4閘閥是截止閥的0.456011458

9、1669571.114581669571.114581669571.1注：1）表中的d為閥門閥座直徑（mm）；M為流通面積（mm2） 2）閥門最大壓差P可以取表中壓力值（Mpa）表表2 2 閥閥門門系系數(shù)數(shù)閥門類型液體400以下400以上平行式閘閥和彈性楔式閘閥或雙閘板0.250.3剛性楔式閘閥0.350.42(50毫米）以上截止閥1.151.152（50毫米）以下截止閥1.51.5表表 5 5 梯梯形形螺螺紋紋閥閥桿桿系系數(shù)數(shù)閥桿尺寸直徑螺距/mmmm閥桿系數(shù)/m閥桿尺寸直徑螺距/mmmm閥桿系數(shù)/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通徑in表表3 3 閥閥桿桿的的大大小小 壓壓力力等等級級MpaMpa（psigpsig）通徑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氣體400以下400以上0.350.45表表1 1 閥閥門門閥閥座座孔孔面面積積壓力等級Mpa（psig）PN15.0(2220)注：1）表中的d為閥門閥座直徑（mm）；M為流通面積（mm2） 2）閥門最大壓差P可以取表中壓力值（Mpa）表表2 2 閥閥門門系系數(shù)數(shù)液體400以上0.30.450.51.151.151.51.50.41.151.5通徑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 閥閥桿桿的的大大小小 壓壓力力等等級級MpaMpa（psigpsig）PN10.0(MPa)表表1 1 閥閥門門閥閥座座孔孔面面積積通徑in壓力等級Mpa（psig）通徑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為閥門閥座直徑（mm）；M為流通面積（mm2） 2）閥門最大壓差P可以取表中壓力值（Mpa）通徑in壓力等級Mpa（psig）通徑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