主蒸汽阀噪声原因分析及处理

:100225855(2007)0120039202:(1968-),,,,(,226003),,,;;:TH134:BCauseanalysisandsolutiontomainsteamvalvenoiseXUYuan2peng(HuanengPowerInternationalInc.NantongPowerPlant,Nantong226003,China)Abstract:Thecauseofmainsteamvalvenoiseisdeterminedthroughanalysisofnoisecreatingmecha2nism.Severalnoisereducingmeasuresandtheireffectsaredetailedinthistext.Itcouldserveasref2erencetopowerplantpipingdesignandvalvetypeselection.Keywords:mainsteamvalve;noise;noisereducingmethods13#4#,1072t/h,541,1711MPa,,350MW,,2,11,SA335P22,557mm91mm,88,23#4#,,,280MW,300MW,340MW,1m,130dB,,,3311,,,3,,,,,,,,312[3],9320071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.=01019m3/kg,Q=1072t/h=2971778kg/sd=373mm,d1=280mmQv=4d2u,u=52148m/s,u1=94113m/s,=113,RR=831413=831413181016=4611495J/(kgK),a=RT=1134611495(273+541)=698182m/sM=ua=94113698182=01135,,,,,,313,,,(),M1,,,,,,,,86,,,,,,,4411,,,,,,,018mm50mm()0145mm()50mm(),,412,,,,,20,,,,,,,SA335P22,559mm98mm,,V,E6015B3,TIG-R40250300,,60/h,7404h,,,,,,3#4#,,,,0420071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.(2007)0120041201(,200942):TH134:B1,,,2(1),,,,3mm,,20mm20mm(2),,1mm,3mm,1/5,CaSiMgFeP,,,,,,SiAlMnCaKNaMgFeP3,,,,,,1/53mm,,,,,,,4,,,,,,,,,,,(:2006107122)5(),,,,,1.M.:,1985.2,,.M.:,1983.3,,.M.:,1987.4,.M.:.1987.5,.M.:.1991.6.M.:.1983.(:2006108103)1420071©1994-2008ChinaAcademicJournalElectronicPublishingHouse.Allrightsreserved.