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:100225855(2009)0620001205,,,;;;;;:TH134:AConstructiondesignofturbineinletballvalveAbstract:Itintroducedmainlypartanditsfunction,constructiondesigncharacterofturbineinletballvalve.Usingthenewconstructioncanmakemoreperfectingeneraldistributionandmoreadvantageinperformance.Atthesametime,itsummarizedworkingprinciple,controllingprinciple,transportingstor2age,andinstallingrequirementofthisballvalve.Keywords:turbine;inletballvalve;construction;sealing;design;controllingprinciple1,,,,,,,,,,,2(1)(1)()(),,(2)(),,(),(3)()(),,(4)(,),,50100mm(5)(,),120096,,,(6)(),(7),(8),,3311,(2),,,,,,,,,1121314151617112(),O,PT2FEO1Cr13312,,,,,,,O(3)O,2Cr131121O31413313,,,(4),220096,,WCB4314,,,(),(5),,5315,,,,(6)(),,,,,6(7),,,,7316(8),()O,O,OPEFE,O1121318,(),,(),(),,320096,,,,(),O,O317PLC,,,,,318,,,319()DN900,,,3110,,,,()(9),93111(DBB),(),()DBB,,,(10)103112,,(11)113113(12),,,,,,123114,420096O,,,O,,U,,,3115,,DEVA-BM,3116DN200,,,,,4,3,,,,,,,,,,,,,,,,,,,,,,,,5(1QPD2QPD)(6QPD)(3QPD)(4QPD5QPD),,,,,3WDP,5QPD,,,,,3WDP,5QPD,,,,2WDP,3QPD,5WDP,,6QPD,(),4WDP,4QPD,1WDP,,,1QPD,,6QPD2WDP,,1WDPJHF25,,,,,,,,,,,,6(1),,,(14)5200964(1),,8501h(2)4(3),(4),1,.1Cr18Ni9Ti[J].,2008,(10):24-30.2,,,.3Cr17Mo[J].,2006,27(2):58-60.3,,,.[J].,2008,43(6):61-65.4,,,.9Cr13Mo3Co3Nb2V[J].,2006,26(3):60-65.5,,,.[J].,2003,24(3):1-5.(:2009105113)(5)1(),,O,O,O,,,OO,O7,,,,,,,,,1.2M.:,2007.2,.M.:,2003.3,.J.,2008(2).4,.215mJ.,2008(4).5.J.,2007(4).6SD303-88,S.(:2009103129)4120096