低温安全阀调节弹簧结构的改进设计

:10025855(2010)05000403:(1982-),,,,,,(,100076)介绍了低温安全阀调节弹簧应具有的特性,论述了组合弹簧的结构设计和强度干涉及稳定性等的校核方法,分析了组合弹簧与单个弹簧的参数与性能差异;;;:TH134:AImprovementoftheadjustmentspringforcryogenicsafetyvalveSHUAITong,LOULuliang,ZHOUZhiyong(BeijingInstituteofAstronauticalSystemsEngineering,Beijing100076,China)Abstract:Adjustmentspringisthekeypartofcryogenicsafetyvalve,ittakeaimportantroleofthevalvesfunction.Forassuringtheprecisionofvalve,thedesignedsizeofadjustmentspringoverrunthestandardrangeandthenonstandardspringisdisbenefitforproducing.Thusthecombinedspringstructureisutilizedtoreducethewirediameterintheimprovementdesigningofrocketvalve.Thedisadvantageandadvantageisalsocontrastedbetweenthetwostructuresinthethesis.Keywords:cryogenicvalve;safetyvalve;springimprovemen;tstructure1,,2(11)8mm,1D/mmd/mmt/mmnn1620008000204451012P/Nmm-1Pmax/NH0/mm/(!)L/mm150381139400200553823482,,,1:∀,,#5mm;∃;%;&4&阀门2010年第5期∋,;(3,,5mm,(2)231(2),),[]=034b2(05mm#d5mm)b/MPa[]/MPaG/MPa!/kgm-313724664865000~75000800032,(80mm),(30mm),,,,3441dout=16KPmaxC[]dmid=16KPC[]din=16KPC[]3D/mmd/mmnn169581050512143551618H0/mmt/mmP/Nmm-12517983053720812094761683133646173001103447972/(!)L/mmP/NPmax/N801921891032534527421461162211703348093677305374198794247035497446dout&&&,mmdmid&&&,mmdin&&&,mmK&&&K=4C-14C-4+0615CC&&&C=DdD&&&,mmd&&&,mmPmax&&&,MPa[]&&&,MPa,dout=4786mm,dmid=4807mm,din=4814mm,5mm,342,∗3+3=K8D∀d3P3(4),4/MPa39301540591440675143,&5&2010年第5期阀门,,,,#D=005(t2-d2)/D(5),3mm,4mm,3mm,,,5#D/mm01190042001744,FFs20%~80%Fs=PsP=∀d38DsPFs&&&,mmPs&&&,MPaP&&&,N/mms&&&()s=[]),MPa,(6)20%~80%,6%F/Fs764760715455!~9!,46,(b=H0/D,H0)b#53,bout=36,bmid=42,bin=49,53,551P3,P=Pin+Pmid+Pout=13699N/mm,P=15038N/mm,52mm=!(∀dout2Lout+∀dmid2Lmid+∀din2Lin)/4=0998kg,V=!∀d2L/4=1004kg,0006kg53(7),7d/mm855554(8),,8/MPa3938933930154059144067516,,,,,,,,,,∗1+,,.∗M+.:,2005.∗2+.∗M+.:,1995.∗3+.∗M+.:,2005.(收稿日期:20100305)&6&阀门2010年第5期