4.5.2通氣管的設(shè)置SettingofAVentPip31課件講解

4.5.2通氣管的設(shè)置SettingofAVentPipe通氣管的設(shè)置SettingofAVentPipe1.伸頂通氣管的設(shè)置SettingofAStackVent（1）設(shè)置條件SettingConditions生活排水管道的立管頂端應(yīng)設(shè)置伸頂通氣管。當(dāng)伸頂通氣管無法伸出屋面時(shí)，宜設(shè)置側(cè)墻通氣，且通氣管口不宜設(shè)在建筑物挑出部分的下面。Fordomesticdrainagepipes,astackventpipeshallbeprovidedatthetopoftheverticalpipe.Whenthestackventpipecannotextendoutoftheroof,itisadvisabletosetupasidewallforventilation,andtheventpipeorificeshallnotbelocatedundertheprojectingpartofbuildings.通氣管的設(shè)置SettingofAVentPipe（2）設(shè)置要求SettingRequirements1通氣管高出屋面不得小于0.3m，且應(yīng)大于最大積雪厚度，通氣管頂端應(yīng)裝設(shè)風(fēng)帽或網(wǎng)罩；Theventpipeshallnotbelessthan0.3metershigherthantheroofandshallbehigherthanthemaximumsnowthickness.Ahoodornetcovershallbeinstalledatthetopoftheventpipe;2在通氣管口周圍4m以內(nèi)有門窗時(shí)，通氣管口應(yīng)高出窗頂0.6m或引向無門窗一側(cè)；Whentherearedoorsorwindowswithin4metersaroundtheventpipeorifice,theventpipeorificeshallbe0.6metershigherthanthetopofthewindowsorextendtothesidewithoutdoorsorwindows;3在經(jīng)常有人停留的平屋面上，通氣管口應(yīng)高出屋面2m；Foraflatroofwherepeopleoftenstay,theventpipeorificeshallbe2metersabovetheroof;4當(dāng)伸頂通氣管為金屬管材時(shí)，應(yīng)根據(jù)防雷要求設(shè)置防雷裝置。Ifthestackventpipeismadeupofmetal,lightningprotectiondevicesshallbeprovidedaccordingtothelightningprotectionrequirements.通氣管的設(shè)置SettingofAVentPipe2.主通氣管、副通氣立管的設(shè)置SettingsofMainVentPipesandSecondaryVentStacks（1）設(shè)置條件SettingConditions建筑物內(nèi)的排水管道上設(shè)有環(huán)形通氣管時(shí)，應(yīng)設(shè)置連接各環(huán)形通氣管的主通氣立管或副通氣立管。Whereloopventpipesareprovidedonthedrainagepipeswithinabuilding,eitheramainorsecondaryverticalventpipeshallbeprovidedconnectingeachloopventpipe.通氣立管不得接納器具污水、廢水和雨水，不得與風(fēng)道和煙道連接。Verticalventpipesshallnotreceivesewage,wastewaterandrainwaterfromwares,andshallnotbeconnectedwithairductsandflues.（2）通氣立管與排水立管的連接ConnectionofVentStacksandDrainageVerticalPipes專用通氣立管和主通氣立管的上端可在最高層衛(wèi)生器具上邊緣0.15m或檢查口以上與排水立管通氣部分以斜三通連接，下端應(yīng)在最低排水橫支管以下與排水立管以斜三通連接；或者下端應(yīng)在排水立管底部距排水立管底部下游側(cè)10倍立管直徑長(zhǎng)度距離范圍內(nèi)與橫干管或排出管以斜三通連接。Theupperendofthespecificventstacksandmainventstackscanbeconnectedwiththeventilatingpartofthedrainageverticalpipethroughalateralteeat0.15metersabovetheupperedgeofsanitarywareonthehighestfloororabovetheinspectionaccess,whilethelowerendshallbeconnectedwiththedrainageverticalpipethroughalateralteebelowthelowesthorizontaldrainagebranchpipe.Alternatively,thelowerendshallbeconnectedwithahorizontalmainpipeordischargepipethroughalateralteewithinadistanceof10timesthediameterofthestackfromthebottomofthedrainageverticalpipetoitsdownstreamside.通氣管的設(shè)置SettingofAVentPipe3.結(jié)合通氣管YokeVentPipe1結(jié)合通氣管宜每層或隔層與專用通氣立管、排水立管連接，與主通氣立管連接；結(jié)合通氣管下端宜在排水橫支管以下與排水立管以斜三通連接，上端可在衛(wèi)生器具上邊緣0.15m處與通氣立管以斜三通連接；Theyokeventpipeshallbeconnectedwiththespecificventstack,drainageverticalpipe,andthemainventstackoneachfloororeveryotherfloor.Itslowerendshallbeconnectedwiththedrainageverticalpipethroughalateralteebelowthehorizontaldrainagebranchpipe,anditsupperendcanbeconnectedwiththeventstackthroughalateralteeat0.15metersfromtheupperedgeofsanitaryware;2當(dāng)采用H管件替代結(jié)合通氣管時(shí)，其下端宜在排水橫支管以上與排水立管連接；WhenanH-shapedpipefittingisusedtoreplacetheyokeventpipe,itslowerendshallbeconnectedwiththeverticaldrainagepipeabovethehorizontaldrainagebranchpipe;3當(dāng)污水立管與廢水立管合用一根通氣立管時(shí)，結(jié)合通氣管配件可隔層分別與污水立管和廢水立管連接；通氣立管底部分別以斜三通與污廢水立管連接。Whentheverticalsewagepipeandverticalwastewaterpipeshareoneverticalventilatingpipe,theyokeventpipefittingscanbeconnectedwiththeverticalsewagepipeandverticalwastewaterpiperespectivelyeveryotherfloor.Thebottomoftheverticalventilatingpipeisconnectedtotheverticalsewagepipeandverticalwastewaterpipethroughlateralteesrespectively.通氣管的設(shè)置SettingofAVentPipe通氣管的設(shè)置SettingofAVentPipe4.環(huán)形通氣管LoopVentPipe設(shè)置條件SettingConditions連接4個(gè)及4個(gè)以上衛(wèi)生器具并與立管的距離大于12m的排水橫支管；Horizontaldrainagebranchpipeswithfourormoresanitarywaresandadistancegreaterthan12metersfromastack;1連接6個(gè)及6個(gè)以上大便器的污水橫支管；Asewagetransversebranchpipewithsixormoretoiletbowls;2設(shè)有器具通氣管的排水管道上。Drainagepipelineswithfixtureventpipes.3通氣管的設(shè)置SettingofAVentPipe5.器具通氣管FixtureVentPipes（1）設(shè)置條件SettingConditions對(duì)衛(wèi)生、安靜要求較高的建筑物內(nèi)，生活污水宜設(shè)置器具通氣管。Inbuildingswithhighrequirementsforhygieneandquietness,fixtureventpipesshallbesetupfordischargingdomesticsewage.（2）設(shè)置要求SettingRequirements器具通氣管應(yīng)設(shè)在存水彎出口端；在橫支管上設(shè)環(huán)形通氣管時(shí)，應(yīng)在其最始端的兩個(gè)衛(wèi)生器具之間接出，并應(yīng)在排水支管中心線以上與排水支管呈垂直或45°連接；Thefixtureventpipeshouldbesetattheoutletendofthetrap;whenaloopventpipeissetonthehorizontalbranchpipe,itshallbeconnectedbetweenthetwosanitarywaresatitsstartingendanditshallbeconnectedwiththedrainagebranchpipeinaverticalor45-degreeconnectionabovethecenterlineofthedrainagebranchpipe;器具通氣管、環(huán)形通氣管應(yīng)在最高層衛(wèi)生器具上邊緣0.15m或檢查口以上，按不小于0.01的上升坡度敷設(shè)與通氣立管連接。Fixtureven