4.5.1通氣管類型認(rèn)知CognitionofTypesofVentPipe0

4.5.1通氣管類型認(rèn)知CognitionofTypesofVentPipes一、通氣管的作用FunctionsofVentPipes建筑內(nèi)部排水管道內(nèi)呈水氣兩相流動(dòng)，要盡可能迅速安全地將污廢水排到室外，必須設(shè)通氣管系統(tǒng)。Thereiswaterandgasflowinthedrainagepipelineinsidebuildings.Todischargesewageandwastewateroutdoorsasquicklyandsafelyaspossible,aventpipesystemmustbesetup.一、通氣管的作用FunctionsofVentPipes排水通氣管系統(tǒng)的作用：FunctionsofDrainageVentPipeSystems:1將排水管道內(nèi)散發(fā)的有毒有害氣體排放到屋頂上方的大氣中去，以滿足衛(wèi)生要求；Itreleasestoxicandharmfulgasesfromdrainagepipesintotheatmosphereabovetherooftomeetsanitaryrequirements;2向排水管道補(bǔ)給空氣，減少氣壓波動(dòng)幅度，防止水封破壞；Itsuppliesairtothedrainagepipestoreducethefluctuationamplitudeofairpressureandpreventthewatersealfrombeingdamaged;3增加系統(tǒng)排水能力；Itincreasesthedrainagecapacityofthesystem;4補(bǔ)充新鮮空氣，可減輕金屬管道的腐蝕，延長管道的使用壽命。Itsupplementsfreshairtoreducemetalpipes'corrosionandprolongtheirservicelife.二、通氣管的種類TypesofVentPipes1.通氣管的類型TypesofVentPipes通氣管的類型主要有：伸頂通氣管、專用通氣管、主通氣立管、副通氣立管、結(jié)合通氣管、環(huán)形通氣管、器具通氣管、匯合通氣管等8種。Therearemainly8typesofventpipes,includingstackvent,specialventpipe,mainverticalventpipe,secondaryventstack,yokeventpipe,loopventpipe,fixtureventpipeandconfluenceventpipe.幾種典型的通氣方式Severaltypicalventilationmodes二、通氣管的種類TypesofVentPipes（1）伸頂通氣管Stackvent是指排水立管與最上層排水橫支管連接處向上垂直延伸室外通氣用的管道。Thestackventreferstothepipeverticallyextendingupwardfromtheconnectionbetweenthedrainagestandpipeandthetopdrainagetransversebranchpipetotheoutsideforventilation.二、通氣管的種類TypesofVentPipes（2）專用通氣管Specialventpipe僅與排水立管相連接，為排水立管內(nèi)空氣流通而設(shè)置的垂直通氣管道。Thespecialventpipeisaverticalventpipeonlyconnectedtothedrainagestandpipeforaircirculationintheverticaldrainagepipe.二、通氣管的種類TypesofVentPipes（3）主通氣立管Mainventstack連接環(huán)形通氣管和排水立管，并為排水橫支管和排水立管內(nèi)空氣流通而設(shè)置的專用于通氣的立管。Themainventstackisaverticalpipespeciallyusedforventilation,whichconnectstheloopventpipeandthedrainagestandpipeandisprovidedforaircirculationinthedrainagetransversebranchpipeandthedrainagestandpipe.（4）副通氣立管Secondaryventstack僅與環(huán)形通氣管相連接，使排水橫支管內(nèi)空氣流通而設(shè)置的專用于通氣的管道。Thesecondaryventstackisapipespeciallyusedforventilation,whichisonlyconnectedwiththeloopventpipetocirculateairinthedrainagetransversebranchpipe.專用通氣立管、主通氣立管、副通氣立管統(tǒng)稱通氣立管。Thespecialverticalventpipe,mainverticalventpipeandSecondaryventstackarecollectivelyreferredtoasverticalventpipes.二、通氣管的種類TypesofVentPipes（5）結(jié)合通氣管Yokeventpipe排水立管與通氣立管的連接管段。Theyokeventpipeistheconnectingpipesectionbetweenthedrainagestandpipeandtheventstack.二、通氣管的種類TypesofVentPipes（6）環(huán)形通氣管Loopventpipe在多個(gè)衛(wèi)生器具的排水橫支管上，從最始端衛(wèi)生器具的下游端接至通氣立管的一段通氣管段。Theloopventpipeisasectionofventpipeonthedrainagetransversebranchpipesofmultiplesanitarywares,whichisconnectedfromthedownstreamendofthemostinitialsanitarywaretoasectionofventpipeoftheventstack.（7）器具通氣管Fixtureventpipes衛(wèi)生器具存水彎出口端接至主通氣管的管段。Thefixtureventpipeisasectionofpipeconnectedtothemainventpipeattheoutletendofthesanitarywaretrap.二、通氣管的種類TypesofVentPipes（8）匯合通氣管Confluenceventpipe

連接數(shù)根通氣立管或排水立管頂端通氣部分，并延伸至室外大氣的通氣管段。Theconfluenceventpipeisasectionoftheventpipethatconnectsseveralventstacksortheventilatingpartatthetopofthedrainagestandpipeandextendstotheventpipeoftheoutdooratmosphere.三、通氣系統(tǒng)的分類ClassificationofVentilationSystems2.通氣系統(tǒng)分類ClassificationofVentilationSystems按立管的個(gè)數(shù)，可分為：Basedonthenumberofstandpipes,theycanbedividedinto:單立管系統(tǒng)、雙立管系統(tǒng)、三立管系統(tǒng)。Single-standpipesystem,double-standpipesystem,andtriple-standpipesystem.（1）設(shè)伸頂通氣管的單立管排水系統(tǒng)Single-standpipedrainagesystemwiththestackvent定義：排水立管向上延伸，穿出屋頂與大氣連通。Definition:drainagestandpipesextendingupwardandpenetratingtherooftoconnectwiththeatmosphere.適用：一般多層建筑。Applicablesituations:generallyformulti-storeybuildings.設(shè)伸頂通氣管的單立管排水系統(tǒng)Single-standpipedrainagesystemwiththestackvent雙立管排水系統(tǒng)Double-standpipedrainagesystem（2）雙立管排水系統(tǒng)Double-standpipe

drainage

system定義：由一根排水立管和一根通氣立管組成。Definition:consistsofadrainagestandpipeandaventstack.適用：污廢水合流的各類多層和高層建筑。Applicablesituation:allkindsofmulti-storeyandhigh-risebuildingswithcombinedsewageandwastewaterflow.三、通氣系統(tǒng)的分類ClassificationofVentilationSystems（3）三立管系統(tǒng)Triple-standpipesystem定義：由一根生活污水立管，一根生活廢水立管共用一根通氣立管組成。Definition:consistsofadomesticsewagestandpipeandadomesticwastewaterstandpipesharingaventstack.適用：生活污水和生活廢水需分別排出室外的各類多層、高層建筑。Applicablesituation:al