ProcessAnalytics,A&D,SiemensLtd,Chinas潘刚分析仪表部CEMS烟气连续监测系统标题13701288985传真:010-64764813电话:010-64765322DdCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasCEMS?WhatisCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasCEMS(ContinuousEmissionsMonitoringSystem)烟气排放监测系统CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasContinuousEmissionMonitoring(CEM)isinstrumentsforcontinuousmeasurementofpollutantsemittedintotheatmosphereinexhaustgasesfromcombustionorindustrialprocesses.CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasLocatedCEMS(就地式)Fixedinstallation.Can'tbemoved.MobileCEMS(移动式)EnabletobemovedtoAnywhere.PortableCEMS(便携式)BadAccuracy.LowPrice.根据安装方式分类ProcessAnalytics,A&D,SiemensLtd,Chinas依据采样技术分类IN-SITU--所有分析部件均安装在烟囱上,直接测量。EXTRACTIVE--从烟囱上取样,将样气伴热后,送至地面便于操作的控制系统柜。DILUTION--从烟囱上取样,用高纯度的稀释气将样气按一定比例稀释后,送至地面便于操作的控制系统柜。注:将样气伴热或者稀释的目的,都是为了防止样气在传输过程中,出现水汽冷凝,造成采样管线堵塞,影响测量结果。CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasIN-SITU直接测量法PathIn-SituAnalyzersPointIn-SituAnalyzersProcessAnalytics,A&D,SiemensLtd,ChinasInSituAnalysis-Advantages直接测量法的优点无需采样处理直接(湿法)测量在中国不适用无需采样管线CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasInSituAnalysis-Disadvantages直接测量法的缺点过程温度限制烟囱上有移动部件检测参数限制不便于维护扩展费用高存在水分干扰因素CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasDilutionAnalysis稀释法ElectricalConnectionAnalyzer&SCS&ReadoutDilutionProbeCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasDilutionAnalysis稀释法CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasDilutionAnalysis-ADVANTAGES稀释法的优点直接(湿法)测量在中国不适用不受过程温度限制烟囱上没有移动部件CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasDilutionAnalysis-DISADVANTAGES稀释法的缺点对采样管线作些保温烟囱上安装高精度的孔板需要非常高纯度的稀释气稀释比率不一定由于样气稀释,造成分析的灵敏度降低CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasExtractiveAnalysis抽取法ElectricalConnectionAnalyzer&SCS&ReadoutExtractiveProbeCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasExtractiveAnalysis-ADVANTAGES抽取法的优点多种气体组分便于组分的扩展不受过程温度限制干法测量(符合我国环保法规)没有移动部件分析仪表可以放在安全、便于维护的地方可以多个检测点共用一套系统CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasExtractiveAnalysis-DISADVANTAGES抽取法的缺点需要加热采样管线需要采样泵需要采样处理设备CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasCEMS-系统方块图F,T,P,H2OOpacitySampleProbeSampleTransportationSampleConditioningSystemAnalyzersSO2/NOX/O2CO/CO2…DataAcquisitionSystems烟尘监测系统,其他参数测量系统气态污染物监测子系统数据采集处理系统DCSorMISCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,ChinasExcellenceinAutomation&Drives:SiemensSAMPLINGANDCONDITIONINGSYSTEMS2-StreamSampleConditioningSystemSAMPLINGANDCONDITIONINGSYSTEMSProcessAnalytics,A&D,SiemensLtd,ChinasBackPurgeUnitCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas系统基本构成:伴热采样探头伴热采样管线采样处理系统和机柜SIEMENS差压变送器ULTRA23多通道分析仪热导式质量流量(温度)计烟尘仪压力表(差压变送器)DAS数据处理系统标气(量程气和零点气)CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas采样探头探头带电伴热,电源:220VAC,50Hz,功耗500瓦最高工作温度:400C(根据需要可选)空气反吹,手动反吹(标准)或自动反吹(选择项)仪表风压力:4-7kg反吹形式:脉冲方式;一次反吹时间:2分钟(可调);电源接口:PG13.5气源接口:1/4CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas采样探头采样探头长度:1500mm(采样点距烟道内壁不小于1m或者1/3的烟道当量直径)过程接口:DN50法兰,法兰OD160mm,螺栓OD14mm4,螺距130mm探头安装时,按照环保部门要求:1.安装在烟囱上,应离地1/3-1/2烟囱高度。2.安装在烟道上,应优先选择垂直管段,一般要求直管烟道长度大于6D,前4D,后2D;若直管烟道长度大于4D,前3D,后1D。CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas伴热采样管线管线采用电伴热电源:220VAC,50Hz,功耗35瓦/米管线材质:PTFE(标准)伴热元件是自限温加热元件控制温度为140-160C(PTFE)管线接口:4mm采样管线外径:约50mm管线安装时,要尽量避免死弯和U形弯(不小于500mm)CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas采样处理系统和机柜采样冷凝器(两级冷凝器)排冷凝液泵(排液能力约0.3l/h)除尘过滤器(两级过滤,第一级2µm,第二级0.1µm)采样泵和释放阀(薄膜泵,薄膜是PTFE,流通能力最大为5.5l/min)湿度检测探头电磁阀和标定系统手动标定(标准)/自动标定(选择项)标定时间可以在控制柜前面板上设置流量计和针形阀(流量控制在0.2-1.5l/min)单元控制器(控制反吹单元)和采样切换控制器(一拖二系统控制采样切换)机柜的防护等级:室内机柜;工作温度:5-35CCEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas分析参数分析方法分析范围COIR0to4000,16000mg/Nm3NOxNOIR0to400/1000mg/Nm3NO2IR0to100/500mg/Nm3SO2IR0to1000/3000mg/Nm3O2EO20to5/25%CO2IR0to5/25%Opacity光学反射原理0to100%Flow&Temperature热传导原理0to90米/秒,-40to200CPressure电容传感器0to5KpaH2O电容式0to20%CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas浓度计算:mg/Nm³Vol.-ppm(质量浓度体积浓度)1mg/Nm3nVol.-ppm1Vol.-ppmnmg/Nm3M(g/mol)CO0.81.2528.01CO20.511.9644.01SO20.382.8664.06NO0.751.3430.01NO20.492.0546.01注:体积浓度(ppm)x密度(273K,1013hPa)=质量浓度(mg/Nm³)标准密度=摩尔重量(g/Mol):摩尔体积(Nl/Mol)摩尔体积=22,414Nl/Mol,标准状态:273K,1013hPa,气体为理想气体CEMS(ContinuousEmissionsMonitoringSystem)ProcessAnalytics,A&D,SiemensLtd,Chinas流量(温度)计采用热传导原理,插入式质量流量,同时测量温度插入深度:1/8D电源:220VAC,50Hz,功耗15W电气接口:23/4NPT,一个电源接口,一个信号线接口(F、T两组信号)仪器安装时,按照环保部门要求:1.安装在烟囱上,应离地1/3-1/2烟囱高度。2.安装在烟道上,应优先选择垂直管段,一般要求直管烟道长度大于6D,前4D,后2D;若