第45卷第1期2023年2月防护工程PROTECTIVEENGINEERINGVol.45No.1Feb.2023收稿日期:2022-09-28作者简介:张红玉(1985—),女,硕士,高级工程师,主要研究方向为防护工程设计与研究。引用格式:张红玉,宋清波.某防护工程均匀送风管道设计计算分析[J].防护工程,2023,45(1):53-60.ZHANGHongyu,SONGQingbo.Analysisonthedesignandcomputationofuniformairsupplyofaprotectiveproject[J].ProtectiveEn-gineering,2023,45(1):53-60.某防护工程均匀送风管道设计计算分析张红玉宋清波(中国人民解放军32392部队,云南昆明650222)摘要以某防护工程均匀送风管道设计计算为例,结合实际工程中常用的变截面和等截面送风方式,分析该长距离送风系统三通旁通管局部阻力对均匀送风计算的影响,提出以支管实际阻力计算值进行阻力平衡计算。变截面风管均匀送风计算,采用静压复得法得到的管道断面尺寸和风速不能满足工程实际应用;采用控制流速法得出的管道静压顺气流方向逐渐减小,支管阻力不平衡率不满足规范要求,需采取调节措施。等截面风管均匀送风计算,管道静压存在最小值,在限定流速范围内,支管阻力不平衡率可以通过调整风管断面尺寸达到规范要求。关键词防护工程;均匀送风;变截面管道;等截面管道AnalysisonthedesignandcomputationofuniformairsupplyofaprotectiveprojectZHANGHongyu,SONGQingbo(Unit32392ofPLA,Kunming650222,China)AbstractTakingaprotectiveprojectasexample,andinconjunctionwithvariableandconstantcross-sectionairsupplymodecommonlyusedinpractice,thispaperanalyzedtheinfluenceoflocalresistanceofbypassductonuni-formairdistributioncalculationofthislong-distanceventilationsystem,andproposedaresistancebalancecalculationbasedontheactualresistanceofthebranchduct.Fortheuniformairdistributioncalculationofvariablecrosssectionairduct,thepipesectionandspeedobtainedbyStaticRegainMethodcannotmeetactualengineeringapplication;thestaticpressureofthepipelineobtainedbyFlowSpeedControlMethoddecreasesgraduallyalongthedirectionofairflowandadjustmentmeasurementisneeded,becausetheresistanceunbalancerateofthebranchductcan’tmeetthespecificationrequirements.Fortheuniformairdistributioncalculationofconstantcrosssectionairduct,thereisaminimumstaticpressure...