直通单座调节阀阀芯形面优化设计

:100225855(2010)0420005203:(1979-),(),,1,1,2(11,730050;21,730020)通过理论分析直通单座调节阀的流量与阀座处流通面积的关系,导出了流通面积和阀芯直径的近似计算式通过改变阀芯在不同开度下的直径,优化阀芯外轮廓形面,使直通单座调节阀的设计流量特性与实际流量特性趋向一致,减小调节误差;;;:TH134:AThroughsingle2seatcontrolvalvediscshapeoptimizationZHANGShuang2de1,ZHANGXi2heng1,ZHAOQing2(11LanzhouUniversityofTechnologyInstituteofPetrochemicalTechnology,Lanzhou730050,China;21GansuResearchInstituteofCivilEngineering,Lanzhou730020,China)Abstract:Inthispaper,theoreticalanalysisthroughsingle2seatandseatflowcontrolvalveflowareaattherelationshipbetweentheflowareaandvalvecorearederivedapproximatediametercalculationfor2mula.Tochangethediscopeningindifferentdegreesindiameter,optimizingthedisc2shapedoutercon2toursurface,sothatthroughthedesignofsingle2seatcontrolvalveflowcharacteristicsofconvergencewiththeactualflowcharacteristics,reducingtheadjustmenterror.Keywords:controlvalve;discshape;flowcharacteristics;optimaldesign1,,,,,,,,,,2211,,,d,,do,,Q=5109ArN$pQ(1)N)))N=1-do4d4=1-Ar2A2Q))),m3/h$p)))($p=100),kPaQ))),g/cm3Ar))),cm2A))),cm2d))),cmKv=5109ArN=QQ$p(2)Kv)))(1))5)2010年第4期阀门Q=Kv$pQ(3)Ar=Kv51092+Kv2A2(4)2121,,,m1m=d-(d2-11273ArcosH)2cosH(5)=d-2mcosH(6)m))),cmH)))1,(b)))),cm213,QiQmax=KvKmax=R(lL-l)(7)l))),cmL))),cmQi)))l,m3/hQmax)))L,m3/h(1)d=50mm,Kvmax=40,R=30,25mm,,(1)1l/L(%)102030405060708090100Kv118721633169511971301012614141201252814640100Ar/cm201367015160172411018114302100521802318995137771295/mm49140491154818048131471614616245115431043919035102(2)1,,(2)232,l/L(%),Kv/Kmax,(3),3,,,)6)阀门2010年第4期,(4)KvKv,45%~90%,15%~30%,,,60%,GB/T1721312-200515%~30%,(2),Kv,,,,,,2l/L(%)102030405060708090100m3/h3146101941118212103131321711021173271183216436115Kv11926128618261977173101311410419182291754011844(4),,(5),1016%(3),GB/T1721312-200553l/L(%)102030405060708090100Kv/Kmax0104701066010920112901183012570136001506017121Kv/Kmax01051010730110101142012012750138015250172415(1),(2),,(3),,112.1M2.:,1989.122.1J2.,1978,(6):43-47.132.1M2.:,1999.142.1M2.:,2006.152.V1J2.,2009,(2):39-41.(收稿日期:2010101128))7)2010年第4期阀门