空气采样使用说明书.ppt

系统系统 概概 况况(System Overview)激光腔激光腔激光腔激光腔进气管进气管进气管进气管吸气泵吸气泵吸气泵吸气泵双段过滤器双段过滤器双段过滤器双段过滤器显示单元显示单元显示单元显示单元工作原理工作原理Sampling pipes采样管采样管Sampling points采样孔采样孔ASD Detector探测器探测器4m8m8m8m8m8m8m8m4m4m4mArea Coverage每个采样孔的平均保每个采样孔的平均保护面积护面积20M2标准采样时采样孔的布置方式标准采样时采样孔的布置方式Siting of Sampling Points Ceiling Sampling 吊顶下采样吊顶下采样Pipe on ceiling with Sampling Hole吊顶下安装的采样管吊顶下安装的采样管吊顶上空吊顶上空Ceiling Void吊顶天花吊顶天花Ceiling Tiles毛细管房间采样毛细管房间采样Capillary Room Sampling毛细管毛细管Capillary TubeCeiling Sampling Ceiling Sampling 吊顶下隐蔽探测吊顶下隐蔽探测微型采样头微型采样头Miniature sampling point fitting隐蔽采样头隐蔽采样头Concealedsamplingpoint吊顶板吊顶板Ceiling panel or tile毛细管毛细管Capillary tubes采样主管采样主管Sampling trunk pipeCeiling Sampling Ceiling Sampling 吊顶下隐蔽探测吊顶下隐蔽探测Capillary Sampling Points 毛细管采样头方案方案1 Option 1Roof Slab 楼板楼板Sample Hole采样孔采样孔Sample HoleSample HoleSample HoleSample HoleSample HoleSample HoleSample HoleTrunk AdapterRoof Slab方案方案2 Option 2Inter-beam Sampling 梁间采样假地板False FloorSlab楼板Sample HolesCable TiesF管道必须布置在上部管道必须布置在上部FPipe must be located at the top of the floor voidFloor Void Sampling Floor Void Sampling 地板下采样地板下采样Sample Hole在管道侧面开孔drilled in side of pipeT型接头Tee假地板False FloorSlab楼板Floor Void Sampling Floor Void Sampling 地板下采样地板下采样Sampling Pipe采样管安装卡子Mounting clip排气格栅Ventilation grilleSampling points 采样孔(oriented down)设备柜Equipment cabinetOn-Cabinet Sampling 柜上采样Airflow 气流气流Above Cabinet SamplingCabinets 机柜机柜OnOn-Cabinet Sampling-Cabinet Sampling 柜上采样柜上采样On-Cabinet Sampling 柜上采样In-Cabinet Sampling 柜内采样In-Cabinet Sampling 柜内采样Return-Air HVAC Sampling 回风采样Pipe Position on Return Air Grille管道放在回风格栅处管道放在回风格栅处Return-Air HVAC Sampling 回风采样To avoid the low pressure point at the grilles entrance,the sampling pipe should stand approximately 100-200mm(3.9-7.8”)from the return air grille.为了避免回风格栅处可能出现的负压，采样管应该离格栅100-200毫米It is recommended that the sampling holes are positioned to face the direction of the greatest airflow path 建议采样孔朝向最大的气流方向Monitoring the exhaust of an AHU is not recommended as the filters can remove the presence of smoke 并不建议在AHU的送风口采样，因为空调的回风滤网已经将烟雾颗粒部分过滤Return-Air HVAC Sampling 回风采样The number of holes in the sampling pipework is determined by the aspirators capacity.采样孔数量取决于气泵的能力A sampling coverage of 0.2m2(2ft2)is recommended.建议0.2m2每个孔 Return-Air HVAC Sampling 回风采样NB:As a guide,NFPA 76 recommends a maximum hole coverage of 0.4m2(4ft2).注：NFPA76建议每孔0.4m2 Pipe管Sample Holes采样孔格栅，带有螺丝 Grille with screws to removeSocket Union管道连接Return-Air HVAC Sampling 回风采样Return Air Detection 回风探测 风管内采样风管内采样 In-Duct Sampling注1：采样管的进口和出 口应该密封Note 1:The entry and exit point of the probe must be sealed and airtight.注2：房间内和风管内的 探头需分开Note 2:Separate detectors are required for in-room and in-duct sampling.Airflow 气流气流Probe sampling pipeIn-Duct Detection 风管内探测1.采样管采样管 Intake probe to detector2.排气管排气管 Exhaust probe from detector正面视图正面视图 ELEVATION VIEWELEVATION VIEW回风管 RETURN AIR DUCT12密封孔Sealing grommet100mm 间距(4in)apart1 12 2气流气流Air flow回风管RETURN AIR DUCTIn-Duct Detection 风管内探测