ASME螺栓扭矩计算

MB2~4,R,S,VPMPa0.60.6ToC200200MLN.mm00MCN.mm00MN.mm00PrN00O.Dmm685.8186I.D628.7110Nmm28.5538b014.27519yMpa6970m34.25EgMPa3923.3184600tgmm4.54mm9.5611.02801Gmm666.68163.944n208M33M20dmm26.21117.294dmmm27.72718.376EbMPa197000205400mm210791.631879.19tnmm3320lbmm16565Mpa0.600.6N209449.2512665.78N72074.1928967.62N1381422.05397594.8mm240041.2211359.85N152985.1612523.92N225059.3541491.55N1381422.05397594.8N.mm287270.2136991.3符号symbol单位units垫片数据gasketdate螺栓载荷boltingdate序号NO.项目Item螺栓直径外径outsidediameterofgasketx轴向弯矩xaxisbendingmoment设计温度designtemperature螺栓预紧力MinimunrequiredboltloadforgasketseatingWm2=πbGyAb=πd2n/4内径innerdiameterofgasket垫片宽度gasketwidth比压力gasketunitseatingload垫片系数gasketfactor垫片密封基本宽度nominalgasketwidth压紧力Totaljoint-contact-surfacecompressionloadHp=2bπGmPe液柱静压头Hydrostaticendforce有效密封宽度effectivegasketseatingwidthb螺栓截面积cross-sectionalareaofbolts螺母厚度thicknessofnut有效螺栓长度effectivelengthofbolt垫片反作用位置直径diameteratlocationofgasketloadreaction螺纹根径rootdiameterofthreads螺栓数量numberofbolts等效压力Equivalentpressure垫片厚度thicknessofgaskety轴向弯矩yaxisbendingmoment螺纹中径pitchdiameterofthreads螺栓材料在设计温度下的弹性模量modulusofelasticityofboltingmaterialattemperature垫片材料在设计温度下的弹性模量modulusofelasticityofgasketmaterialattemperature总弯矩totalbendingmoment径向载荷radialload二.计算caculation所需扭矩requiredtorqueAg=2πbGFbo=Hp+ΔFW=max(Fbo,Wm2)垫片作用的实际面积actualjoint-contactareaofgasket垫片的压缩力decreasingcompressionforceingasket需要的拉伸力initialrequiredtighteningforce需要的总力totaltighteningforcerequiredtosealjoint0.15法兰数据flangedate螺栓螺母和螺母法兰面之间的总摩擦系数totalfrictionfactorbetweenbolt/nutandnut/flangefaceK设计压力internalpressure螺栓扭矩计算一.设计条件designcondition管口号0.15)53.2,min(00bbbpDFDMPGGwe2341642ePGHbgggbblEAtEAHF1nKWdTm