空氣采樣使用說明書

系統(tǒng)概況(SystemOverview)激光腔進(jìn)氣管吸氣泵雙段過濾器顯示單元工作原理Samplingpipes采樣管Samplingpoints采樣孔ASDDetector探測器4m8m8m8m8m8m8m8m4m4m4mAreaCoverage每個采樣孔的平均保護(hù)面積20M2標(biāo)準(zhǔn)采樣時采樣孔的布置方式

SitingofSamplingPointsCeilingSampling吊頂下采樣PipeonceilingwithSamplingHole

吊頂下安裝的采樣管吊頂上空CeilingVoid吊頂天花CeilingTiles毛細(xì)管房間采樣CapillaryRoomSampling毛細(xì)管CapillaryTubeCeilingSampling吊頂下隱蔽探測微型采樣頭Miniaturesamplingpointfitting隱蔽采樣頭Concealedsamplingpoint吊頂板Ceilingpanelortile毛細(xì)管Capillarytubes采樣主管SamplingtrunkpipeCeilingSampling吊頂下隱蔽探測CapillarySamplingPoints毛細(xì)管采樣頭方案1Option1RoofSlab樓板SampleHole采樣孔SampleHoleSampleHoleSampleHoleSampleHoleSampleHoleSampleHoleSampleHoleTrunkAdapterRoofSlab方案2Option2Inter-beamSampling梁間采樣假地板FalseFloorSlab樓板SampleHolesCableTies管道必須布置在上部PipemustbelocatedatthetopofthefloorvoidFloorVoidSampling地板下采樣SampleHole在管道側(cè)面開孔drilledinsideofpipeT型接頭Tee假地板FalseFloorSlab樓板FloorVoidSampling地板下采樣On/In-Cabinetsamplingcanprovidethemostoptimumdetectionofafiredueto:Closesttothesource,beforedilutionoccursReducedtimetodetect,smokeisactivelydrawnfromthesource柜上/內(nèi)采樣提供了最優(yōu)的探測方案，因為：在稀釋之前，離火源最近縮短探測時間，煙霧被主動地吸取Dedicateddetectorscanprovidetheoptimumprotection

專用的探測器能夠提供最優(yōu)的保護(hù)On/In-CabinetSampling柜上/內(nèi)采樣SamplingPipe采樣管安裝卡子Mountingclip排氣格柵VentilationgrilleSamplingpoints采樣孔(orienteddown)設(shè)備柜EquipmentcabinetOn-CabinetSampling柜上采樣Airflow氣流AboveCabinetSamplingCabinets機(jī)柜On-CabinetSampling柜上采樣On-CabinetSampling柜上采樣In-CabinetSampling

柜內(nèi)采樣In-CabinetSampling柜內(nèi)采樣Return-AirHVACSampling回風(fēng)采樣PipePositiononReturnAirGrille管道放在回風(fēng)格柵處Return-AirHVACSampling回風(fēng)采樣Toavoidthelowpressurepointatthegrille’sentrance,thesamplingpipeshouldstandapproximately100-200mm(3.9-7.8”)fromthereturnairgrille.

為了避免回風(fēng)格柵處可能出現(xiàn)的負(fù)壓，采樣管應(yīng)該離格柵100-200毫米Itisrecommendedthatthesamplingholesarepositionedtofacethedirectionofthegreatestairflowpath

建議采樣孔朝向最大的氣流方向MonitoringtheexhaustofanAHUisnotrecommendedasthefilterscanremovethepresenceofsmoke

并不建議在AHU的送風(fēng)口采樣，因為空調(diào)的回風(fēng)濾網(wǎng)已經(jīng)將煙霧顆粒部分過濾Return-AirHVACSampling

回風(fēng)采樣Thenumberofholesinthesamplingpipeworkisdeterminedbytheaspirator’scapacity.采樣孔數(shù)量取決于氣泵的能力Asamplingcoverage

of0.2m2(2ft2)isrecommended.

建議0.2m2每個孔

Return-AirHVACSampling回風(fēng)采樣NB:Asaguide,NFPA76recommendsamaximumholecoverageof0.4m2(4ft2).注：NFPA76建議每孔0.4m2Pipe管SampleHoles采樣孔格柵，帶有螺絲GrillewithscrewstoremoveSocketUnion管道連接Return-AirHVACSampling回風(fēng)采樣ReturnAirDetection回風(fēng)探測風(fēng)管內(nèi)采樣In-DuctSampling注1：采樣管的進(jìn)口和出口應(yīng)該密封Note1:Theentryandexitpointoftheprobemustbesealedandairtight.注2：房間內(nèi)和風(fēng)管內(nèi)的探頭需分開Note2:Separatedetectorsarerequiredforin-roomandin-ductsampling.

Airflow氣流‘Probe’samplingpipeIn-DuctDetection風(fēng)管內(nèi)探測1.采樣管Intakeprobetodetector2.排氣管Exhaustprobefr