电脉冲除尘器说明书

DMC24-84型电脉冲除尘器DMC24-84ModelElectricPulseDustCollector使用说明书OperationInstruction江苏国能环保设备有限公司JiangsuGuonengEnvironmentProtectionEquipmentCo.,Ltd.一、前言1.Foreword电脉冲除尘器是针对火力发电厂灰库、渣库工况条件专门设计的高效净化专用设备，它采用了先进的清灰技术，具有气体处理能力大，净化效果好，结构简单，工作可靠，维修量小等优点。在结构设计上已考虑到了其布置特点，产品密封性好，可露天布置。Electricpulsedustcollectorisahighefficiencypurifiedspecialequipment,whichisdesignedfordustbunker,ashsiloofthermalpowerplant.Itadoptsadvanceddustremovaltechnology,whichhassuchfeaturesaslargegasprocessingcapacity,goodpurifyingeffect,simplestructure,reliableoperationandlessmaintenance.Considerationhasbeentakenintoitslayoutcharacteristiconstructuredesign,thesealingpropertyofproductisgoodandtheproductcanbelaidintheopenair.本产品经电站长期使用证明：性能稳定，运行可靠，深受设计选用单位及用户的好评。Afterbeingusedforlongtimebypowerstation,theproducthasprovedthat:steadyperformance,reliableoperation,andhasgainedhighopinionsbytheunitsselectingthedesignandusers.二、技术参数2.Technicalparameters2.1电脉冲除尘器型号含议：2.1Modelandsignificationofelectricpulsedustcollector:结构形式I:侧取式，代号可省略Structureitori上抽抽式de-drawtype,StructureformI:荻DemawqypeFsgmb^CknbeomittedMupjdvfypeypeBU袋数量yoffilterbagQuantityoffilterbag电eC冲冲除pu器!edustcollectorElectricpulsedustcollector2.2技术指标2.2Technicalindicators2.2.1过滤风速2.2.1Filteringwindspeed过滤风速是指气体通过滤袋的速度，可按下式计算：Filteringwindspeedisthespeedgaspassingthroughfilterbag,whichcanbecalculatedasperfollowingformula:V=Q/(60・F)式中：V-过滤风速(m/min)Q-处理气体量(m3/h)F-过滤面积(m2)V=Q/(60・F)Informula：V-filteringwindspeed(m/min)Q-gasprocessingquantity(m3/h)F-filteringarea(m2)根据灰库工况，一般选择V<1m/minAccordingtotheworkingconditioninashstoragebin,generallyselectV<1m/min.2.2.2滤袋材质(滤料)2.2.2Filtermaterial滤料根据工况条件及除尘要求选择。Filtermaterialisselectedaccordingtotheworkingconditionanddustremovalrequirements.表一Table1品种Type使用温度CApplicationtemperatureC耐化学性Chemicalresistanee连续Continues瞬间Instant耐酸性Acidresistanee耐碱性Alkaliresistanee聚酯纤维Polyesterfiber130150强Strong中Medium诺美科斯Nuomeikesi204240中Medium中Medium玻璃纤维Glassfiber260300中Medium中Medium2.2.3清灰气源2.2.3Dustremovalairsupply2.2.3.1气源品质压力露点-20°C含油量 5ppm含尘量 5mg/m32.2.3.1AirsupplyqualityPressuredewpoint -20COilcontent 5ppmDustcontent 5mg/m32.2.3.2气源压力2.2.3.2Airsupplypressure0.4~0.6MPa2.2.4耗气量耗气是一可按下式计算：Q=a•n•q/T式中：Q-每台电脉冲除尘器耗气量(m3/min)n-电磁阀数量(个)T-脉冲周期(min)q-每个电磁阀喷吹时的耗气量(m3),当喷吹压力0.6MPa,喷吹时间0.2s时，q=0.03m3a-裕度系数，取1.22.2.4AirconsumptionAirconsumptioncanbecalculatedasperfollowingformula:Q=a•n•q/TInformula:Q-airconsumptionofeachelectricpulsedustcollector(m3/min)n-quantityofsolenoidvalve(pcs)T-pulseperiod(min)q-airconsumption(m3)wheneachsolenoidvalveblows,whenblowingpressureis0.6MPaandblowingtimeis0.2s,q=0.03m3a-tolerancecoefficient,take1.22.3电脉冲除尘器和种类选取2.3Selectiontypesofelectricpulsedustcollector本除尘器在结构上有两种形式，一种为布袋侧取式结构，另一种为布袋上抽式结构，分别适应不同的场合。Thedustcollectorhastwotypesofstructure,oneisside-drawbag-typestructure,theotherisup-draftbag-typestructure,whichissuitablefordifferentsituations.

2.4技术参数(见下表)2.4Technicalparameters(seefollowingtable)型号Model技术参数TechnicalparametersDMC-24DMC-36DMC-48DMC-60DMC-72DMC-84过滤面积(m2)Filteringarea(m2)223445576879滤袋数量Quantityoffilterbag243648607284滤袋规格|mm|Spec・offilterbag|mm|Q130X1800mmq130X2500mm设备阻力|KPa|Equipmentresistanee|KPa|1.0-1.2Kpa除尘效率Dustremovalefficiency99-99.5%过滤风速|m/min|Filteringwindspeed|m/min|0.8-1.2m/min处理风量|m3/h|1320-2040-2700-3400-4080-4740-Processingairvolume|m3/h|264040805400680081609480喷吹压力|MPa|0.5-0.7MPaBlowingpressure|MPa|喷吹风量|m3/h|0.072-0.108-0.144-0.18-0.216-0.252-Blowingairvolume|m3/h|0.1440.2160.2880.360.4320.504输入电压(v)s220vInputvoltage(v)三、结构与工作原理三.Structureandworkingprinciple3.1结构简介Structureintroduction电脉冲除尘器的基本结构由四大部分组成.Thebasicstructureofelectricpulsedustcollectoriscomposedoffourparts.上箱体：包括可掀起的盖板(或紧固式上盖板)和出风口。Uppertank:includingremovablecoverplate(orfasteninguppercoverplate)andairoutlet.中箱体：包括多孔板、检修门、滤袋、龙骨等。Middletank:includingperforatedplate,accessdoor,filterbag,keel.下箱体：包括测压接头等。Bottomtank:includingpressuretestingadapter.喷吹系统：包括脉冲控制仪Blowingsystem:includingpulsecontroller,electromagneticpulsevalve,blowingpipe,airbag.3.2工作原理Workingprinciple含尘气体由进风口进入除尘器箱体内，细小尘粒由于滤袋的多种效应作用，被滞阻在滤袋外壁。净化后的气体通过滤袋经文氏管从上箱体出风口排出。随着使用时间的增长，滤袋表面吸附的粉尘增多，滤袋的透气性减弱，使除尘器阻力不断增大。为保证除尘器的阻力控制在限定的范围之内，由脉冲控制仪发出信号，循序打开电磁脉冲阀，使气包内的压缩空气由喷吹管各喷孔喷射到对应的文氏管(称为一次风)，并在高速气流通过文氏管时诱导数倍于一次风的周围空气(称为二次风)进入滤袋，造成滤袋瞬间急剧膨胀，由于反向脉冲气流的冲击作用很快消失，滤袋又急剧收缩，这样使积附在滤袋外壁上的粉尘被清除。落下的灰尘进入灰库。Dustygascomesintodustcollectorbodyfromairinlet,finedustparticlesareseparatedatexternalwalloffilterbagduetotheeffectoffilterbag.Purifiedgaspassesthroughthefilterbagaswellastheventuritubeandthenexhaustsfromtheairoutletofuppertank.Astheincreaseofservicetime,moredustisadheredtothesurfaceoffilterbagandtheairpermeabilityoffilterbagislowersothattheresistanceofdustcollectorincreasescontinuously.Inordertoensuretheresistanceofdustcollectoriscontrolledwithinlimitrange,thepulsecontrollersendsoutasignaltoopenelectromagneticpulsevalveinproperorder,thecompressedairinairbagisejectedtocorrespondingventuritubebyeachjetholeonblowingpipe(calledprimaryair),whenhighspeedairflowpassesthroughventuritube,theambientair(calledsecondaryair),ofwhichtheinductioncoefficientistwiceasprimaryair,comesintofilterbag,resultingininstantrapidexpansionoffilterbag,becauseoftheimpacteffectofreversepulseairflow,itdisappearsquickly,thefilterbagretractsrapidlyagain,sothatthedustaccumulatedatexternalwalloffilterbagisremoved.Thefallendustcomesintodustbunker.由于清灰是轮流向几组滤袋分别进行，并不切断需要处理的含尘空气，所以在清灰过程中，除尘器的处理能力不变。Dustremovalrespectivelycarriesouttoseveralfilterbagsinturnanddonotcutoffthedustyairrequiredtobehandled,soduringdustremoval,thehandlingcapacityofdustcollectorisconstant.喷吹系统简况：喷吹系统的组成如图三，脉冲阀A端接压缩空气气包，B端接喷吹管。脉冲阀是背压式控制阀，控制动作由控制仪发出指令。在控制仪无信号输出时，控制阀的活动铁芯封住排气口，脉冲阀处于关闭状态；当控制仪发出信号时，控制阀将脉冲背压室与大气相通，脉冲阀开启，压缩空气由气包通过脉冲阀经喷吹管小孔喷进文氏管，造成滤袋内瞬时正压，实现清灰。Blowingsystemintroduction:thecompositionofblowingsystemisasfig.3,portAofpulsevalveconnectstotheairbagofcompressedair,portBconnectstoblowingpipe.Pulsevalveisaback-pressurecontrolvalve,tocontrolactionsbytheinstructionsentoutbycontroller.Whencontrollerdoesnotsendoutsignal,themovableironcoreofcontrolvalvesealsofftheairoutletandpulsevalveisunderoffstate;whencontrollersendsoutasignal,controlvalvemakespulsebackpressurechamberconnectwithatmosphere,pulsevalveopens,thencompressedairisejectedinventuritubefromtheholesofblowingpipeviapulsevalve,resultingininstantpositivepressureinfilterbag,socarryoutdustremoval.四、主要配件Mainaccessories4.1脉冲控制仪Pulsecontroller脉冲控制仪是电脉冲除尘器的主要控制装置。它输出的信号控制电磁脉冲阀，喷吹的压缩空气对滤袋循序清灰，使除尘器的阻力保持在设定的范围内，以保证除尘器的处理能力和除尘效率。脉冲宽度和脉冲周期是衡量冲控制仪的两个重要参数。根据用户要求，现提供两种型号控制仪：一种为意大利Mecair公司原装进口产品，一种为国产优质产品。它们都具有定时清灰，定压差清灰优点，同时具有全封闭的外壳，防尘性能好，安装方便。两种产品有不同的性价比，以满足不同用户要求。Pulsecontrollerisamaincontroldeviceofelectricpulsedustcollector.Thesignalsentoutbyitistocontrolelectromagneticpulsevalve,andtheblowingcompressedairremovesdustforfilterbaginproperordersothattheresistanceofdustcollectorholdswithinasettingrangetoensurethehandlingcapacityofdustcollectoranddustcollectionefficiency.Pulsewidthandpulseperiodaretwoimportantparametersformeasuringthepulsecontroller.Accordingtotherequirementsofusers,nowweprovidetwotypesofcontroller:oneisoriginallyimportedproductfromItalyMecaircompany,theotheristhedomestichighqualityproduct.Bothofthemhavesuchfeaturesastimingdustremoval,dustremovalwithconstantpressure,meanwhile,theyhaveclosedcasing,gooddustproofperformanceandeasyinstallation.Bothproductshavedifferentperformancesandpriceratiostomeetdifferentusers'requirements.4.1.1意大利Mecair公司生产的脉冲控制仪PulsecontrollerproducedbyItalyMecaircompany型号:MCSModel:MCS规格:MCS-4,8,12,16,20,24,28Spec.:MCS-4,8,12,16,20,24,28电源:AC220V±10% 50HZPowersupply:AC220V±10% 50HZ输出电压:AC220VOutputvoltage:AC220V功率:50WPower:50W脉冲宽度:0.01~10SPulsewidth:0.01~10S脉冲周期:1~1000sPulseperiod:1~1000s压差输出:4~20mADifferentialpressureoutput:4~20mA贮存温度：-20~+80°CApplicationtemperature:-10~+50°C使用温度：-10~+50°CStoragetemperature:-20~+80C4.1.2国产脉冲控制仪Domesticpulsecontroller型号：DMK-3CSModel:DMK-3CS规格：DMK-3CS-4,6,8,10,12,14,16,18,20Spec.:DMK-3CS-4,6,8,10,12,14,16,18,20输入电压：AC220V+10%~-20%Inputvoltage:AC220V+10%~-20%输出电压：DC24VOutputvoltage:DC24V功率：8WPower:8W脉冲宽度：0.03~0.2SPulsewidth:0.03~0.2S脉冲间隔：1~30SPulsetime:1~30S压差输出：4~20mADifferentialpressureoutput:4~20mA使用温度：-25~+55CApplicationtemperature:-25~+55C4.2电磁脉冲阀Electromagneticpulsevalve电磁脉冲阀是电脉冲除尘器喷吹清灰系统的主要装置，它是向滤袋内喷吹压缩空气的开关，受脉冲控制仪输出信号的控制。它是将脉冲阀（差动气阀）与先导阀（控制阀）组合在一起，除阀体进气口与储气筒金属管连接外，阀体本身无软管连接，造型新颖，结构合理，安装方便，工作可靠，寿命长，清洗力大，耗电最小，阀体采用铝硅合金铸成，经表面处理后具有一定的防腐蚀能力。根据用户需要可提供原装进口件和国产优质件。Electromagneticpulsevalveisamaindeviceinblowingdustremovalsystemofelectricpulsedustcollector.Itisaswitchtoblowcompressedairtofilterbagandiscontrolledbypulsecontrolleroutputsignal.Itistocombinepulsevalve(differentialairvalve)withpilotvalve(controlvalve),exceptfortheconnectionoftheairinletofvalvebodyandmetalpipeofaircylinder,thevalvebodyhassuchfeaturesasnohoseconnection,newmodel,reasonablestructure,convenientinstallation,reliableoperation,longservicetime,largecleaningforce,minimumpowerconsumption.Thevalvebodyismadeofaluminum-siliconalloy,aftersurfacetreatment,ithasanticorrosioncapacity.Accordingtotherequirementsofusers,wemayofferoriginalimportedproductsanddomestichighqualityproducts.4.2.1意大利Mecair公司生产的电磁脉冲阀ElectromagneticpulsevalveproducedbyItalyMecaircompany型号：VEP206Model:VEP206电压：AC220VVoltage:AC220V功率：16WPower:16W使用温度：-20~+80°CApplicationtemperature:-20~+80°C寿命：喷吹100万次Servicelife:blowing1milliontimes4.2.2国产电磁阀Domesticelectromagneticvalve型号：DMF-Z-20Model:DMF-Z-20电压：DC24VVoltage:DC24V功率：6WPower:6W使用温度：-10~55°CServicelife:blowing1milliontimes寿命：喷吹100万次Applicationtemperature:-10~55C4.3文氏管Venturitube文氏管是清灰系统诱导二次风，加强压力波的重要部件。Venturitubeisanimportantpartfordustremovalsysteminducingsecondaryairandforreinforcingpressurewave.滤袋框架(龙骨)Filterbagframe(keel)能支撑滤袋在负压状态下仍保持有效的过滤面积。采用鼠笼式结构，框架挺拔，刚性好，安装方便。Itisabletosupportfilterbagtoholdeffectivefilteringareaundernegativepressure.Adoptsquirrelcagestructure,theframeisforcefulwithgoodrigidityandiseasytoinstall.4.5滤袋Filterbag滤袋是过滤含尘气体的部件。除尘器过滤效果的好坏关键在于滤袋材质，用户可根据工况条件及除尘效率等选择适宜滤料。Filterbagisapartforfilteringdustygas.Thematerialoffilterbagisthekeytofilteringeffectofdustcollector.Usersmayselectapplicablefilteringmaterialsaccordingtoworkingconditionanddustcollectionefficiency.五、安装与使用Installationandusage设备起吊时，应注意避免碰损箱体及配件。Payattentiontoavoidbreakingthetankandaccessorieswhenliftingequipment.安装前对除尘器各部件进行全面检查，零部件是否完好齐全，如发现缺少损坏或变形者，要修整补齐后方可安装。Carryoutcompleteinspectionforeachpartofdustcollectorbeforeinstalling,seeifthepartsareundamagedandcomplete,ifanymissing,damageordeformationisfound,itshallberepairedbeforeinstalling.除尘器各法兰之间应嵌入密封填料才能拧紧螺栓，保证箱体密封可靠，防止漏气。Insertthesealpackingintoeachflangeofdustcollectorbeforescrewingdownthebolts,ensurethetankissealedandreliable,andpreventairleakage.各人孔，检查门等处均应有密封嵌条，以保证其密封性。Eachmanhole,accessdoorshallhavesealingstriptoensureitssealability.滤袋要逐条检查。Checkfilterbagonebyone.滤袋安装时必须垂直于固定花板：侧抽式滤袋用卡箍卡于滤袋框架上；上抽式采用弹性涨圈滤袋，安装时先把弹性涨圈压缩，然后放入花板孔内再打开，将滤袋牢固定位，最后将滤袋框架卡于其上。Itmustbeverticaltofixedtubesheetwheninstallingfilterbag:side-drawfilterbagisclippedonfilterbagframebytheclamp;up-drafttypeadoptsexpansionringfilterbag.Wheninstalling,compresstheexpansionringfirstly,thenopenafterputtingintheholeoftubesheet,fixthefilterbagfirmly,finallyfitthefilterbagframeonit.喷吹管固定后，其喷吹孔应对准文氏管中心。Theblowingholeshallbecenteredonthecenterofventuritubeafterblowingpipeisfixed.气包、电磁脉冲阀喷吹管的连接应可靠密封，不得有漏气现象。Theconnectionbetweenairbagandelectromagneticpulsevalveblowingpipeshallbereliablysealed,withoutanyairleakage.除尘器进风口、出风口侧连通测压接头以测量阻力。根据阻力上升情况，确定喷吹间隔时间，保证设备正常运行（根据要求可取消阻力测量）。Sideofairinletandoutletofdustcollectorconnectstopressuretestingadaptertomeasureresistance.Accordingtotheresistanceincreasesituation,determineblowingintervaltimeandensurenormaloperationofequipment(cancelresistancemeasurementasrequired).喷吹用压缩空气应去污除油，压缩空气在接入除尘器气包前应设油水分离TO器。Thecompressedairusedforblowing,shallbecleanedandremovedoil.Itshallhaveoilwaterseparatorbeforecompressedairistakenindustcollector.开车步骤(停车步骤与之相反)Startsteps(stopstepsareinreverse)泄去油水分离器和储气罐内的凝结水，压缩空气的压力应保持在4~0.6MPa范围内。Drainoutthecondensationwaterinoilwaterseparatorandaircylinder.Thepressureofcompressedairshallholdintherangeof0.4~0.6MPa.5.11.2开控制仪Startcontroller合上空气开关，打开脉冲控制仪上的电源开关，开始喷吹。Turnoffairswitch,turnonthepowerswitchonpulsecontrollertostartblowing.检查每一个电磁阀是否动作。如果没有动作，请检查电磁阀的接线是否正确。Checkandseeifeachsolenoidvalveisactive.Ifnoaction,pleasecheckthewiringofsolenoidvalveiscorrect.调节脉冲间隔、脉冲宽度的大小。通过脉冲控制仪上的两个旋钮根据工况条件进行调节。Adjustthepulseintervalandthesizeofpulsewidth.Carryoutadjustmentthroughtwobuttonsonpulsecontrolleraccordingtoworkingcondition.六、故障原因与排除方法Failurecauseandeliminationmethod除尘器投入运行后，应设专人管理维修，熟悉除尘器工作原理及技术性能掌握调整与维修方法，每班巡回检查，建立运行记录。6.1Itshallarrangepersonneltomanageandmaintain,familiarizetheworkingprincipleandtechnicalperformanceofdustcollector,toknowwellaboutadjustmentandmaintenancemethodsandtocarryoutitinerantinspectionbyeachshiftandestablis