電脈沖除塵器說明書

DMC24-84型電脈沖除塵器DMC24-84ModelElectricPulseDustCollector使用說明書OperationInstruction江蘇國能環(huán)保設(shè)備有限公司JiangsuGuonengEnvironmentProtectionEquipmentCo.,Ltd.一、前言1.Foreword電脈沖除塵器是針對火力發(fā)電廠灰?guī)?、渣庫工況條件專門設(shè)計(jì)的高效凈化專用設(shè)備，它采用了先進(jìn)的清灰技術(shù)，具有氣體處理能力大，凈化效果好，結(jié)構(gòu)簡單，工作可靠，維修量小等優(yōu)點(diǎn)。在結(jié)構(gòu)設(shè)計(jì)上已考慮到了其布置特點(diǎn)，產(chǎn)品密封性好，可露天布置。Electricpulsedustcollectorisahighefficiencypurifiedspecialequipment,whichisdesignedfordustbunker,ashsiloofthermalpowerplant.Itadoptsadvanceddustremovaltechnology,whichhassuchfeaturesaslargegasprocessingcapacity,goodpurifyingeffect,simplestructure,reliableoperationandlessmaintenance.Considerationhasbeentakenintoitslayoutcharacteristiconstructuredesign,thesealingpropertyofproductisgoodandtheproductcanbelaidintheopenair.本產(chǎn)品經(jīng)電站長期使用證明：性能穩(wěn)定，運(yùn)行可靠，深受設(shè)計(jì)選用單位及用戶的好評。Afterbeingusedforlongtimebypowerstation,theproducthasprovedthat:steadyperformance,reliableoperation,andhasgainedhighopinionsbytheunitsselectingthedesignandusers.二、技術(shù)參數(shù)2.Technicalparameters2.1電脈沖除塵器型號(hào)含議：2.1Modelandsignificationofelectricpulsedustcollector:結(jié)構(gòu)形式I:側(cè)取式，代號(hào)可省略Structureitori上抽抽式de-drawtype,StructureformI:荻DemawqypeFsgmb^CknbeomittedMupjdvfypeypeBU袋數(shù)量yoffilterbagQuantityoffilterbag電eC沖沖除pu器!edustcollectorElectricpulsedustcollector2.2技術(shù)指標(biāo)2.2Technicalindicators2.2.1過濾風(fēng)速2.2.1Filteringwindspeed過濾風(fēng)速是指氣體通過濾袋的速度，可按下式計(jì)算：Filteringwindspeedisthespeedgaspassingthroughfilterbag,whichcanbecalculatedasperfollowingformula:V=Q/(60?F)式中：V-過濾風(fēng)速(m/min)Q-處理氣體量(m3/h)F-過濾面積(m2)V=Q/(60?F)Informula：V-filteringwindspeed(m/min)Q-gasprocessingquantity(m3/h)F-filteringarea(m2)根據(jù)灰?guī)旃r，一般選擇V<1m/minAccordingtotheworkingconditioninashstoragebin,generallyselectV<1m/min.2.2.2濾袋材質(zhì)(濾料)2.2.2Filtermaterial濾料根據(jù)工況條件及除塵要求選擇。Filtermaterialisselectedaccordingtotheworkingconditionanddustremovalrequirements.表一Table1品種Type使用溫度CApplicationtemperatureC耐化學(xué)性Chemicalresistanee連續(xù)Continues瞬間Instant耐酸性Acidresistanee耐堿性Alkaliresistanee聚酯纖維Polyesterfiber130150強(qiáng)Strong中Medium諾美科斯Nuomeikesi204240中Medium中Medium玻璃纖維Glassfiber260300中Medium中Medium2.2.3清灰氣源2.2.3Dustremovalairsupply2.2.3.1氣源品質(zhì)壓力露點(diǎn)-20°C含油量 5ppm含塵量 5mg/m32.2.3.1AirsupplyqualityPressuredewpoint -20COilcontent 5ppmDustcontent 5mg/m32.2.3.2氣源壓力2.2.3.2Airsupplypressure0.4~0.6MPa2.2.4耗氣量耗氣是一可按下式計(jì)算：Q=a?n?q/T式中：Q-每臺(tái)電脈沖除塵器耗氣量(m3/min)n-電磁閥數(shù)量(個(gè))T-脈沖周期(min)q-每個(gè)電磁閥噴吹時(shí)的耗氣量(m3),當(dāng)噴吹壓力0.6MPa,噴吹時(shí)間0.2s時(shí)，q=0.03m3a-裕度系數(shù)，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電脈沖除塵器和種類選取2.3Selectiontypesofelectricpulsedustcollector本除塵器在結(jié)構(gòu)上有兩種形式，一種為布袋側(cè)取式結(jié)構(gòu)，另一種為布袋上抽式結(jié)構(gòu)，分別適應(yīng)不同的場合。Thedustcollectorhastwotypesofstructure,oneisside-drawbag-typestructure,theotherisup-draftbag-typestructure,whichissuitablefordifferentsituations.

2.4技術(shù)參數(shù)(見下表)2.4Technicalparameters(seefollowingtable)型號(hào)Model技術(shù)參數(shù)TechnicalparametersDMC-24DMC-36DMC-48DMC-60DMC-72DMC-84過濾面積(m2)Filteringarea(m2)223445576879濾袋數(shù)量Quantityoffilterbag243648607284濾袋規(guī)格|mm|Spec?offilterbag|mm|Q130X1800mmq130X2500mm設(shè)備阻力|KPa|Equipmentresistanee|KPa|1.0-1.2Kpa除塵效率Dustremovalefficiency99-99.5%過濾風(fēng)速|(zhì)m/min|Filteringwindspeed|m/min|0.8-1.2m/min處理風(fēng)量|m3/h|1320-2040-2700-3400-4080-4740-Processingairvolume|m3/h|264040805400680081609480噴吹壓力|MPa|0.5-0.7MPaBlowingpressure|MPa|噴吹風(fēng)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輸入電壓(v)s220vInputvoltage(v)三、結(jié)構(gòu)與工作原理三.Structureandworkingprinciple3.1結(jié)構(gòu)簡介Structureintroduction電脈沖除塵器的基本結(jié)構(gòu)由四大部分組成.Thebasicstructureofelectricpulsedustcollectoriscomposedoffourparts.上箱體：包括可掀起的蓋板(或緊固式上蓋板)和出風(fēng)口。Uppertank:includingremovablecoverplate(orfasteninguppercoverplate)andairoutlet.中箱體：包括多孔板、檢修門、濾袋、龍骨等。Middletank:includingperforatedplate,accessdoor,filterbag,keel.下箱體：包括測壓接頭等。Bottomtank:includingpressuretestingadapter.噴吹系統(tǒng)：包括脈沖控制儀Blowingsystem:includingpulsecontroller,electromagneticpulsevalve,blowingpipe,airbag.3.2工作原理Workingprinciple含塵氣體由進(jìn)風(fēng)口進(jìn)入除塵器箱體內(nèi)，細(xì)小塵粒由于濾袋的多種效應(yīng)作用，被滯阻在濾袋外壁。凈化后的氣體通過濾袋經(jīng)文氏管從上箱體出風(fēng)口排出。隨著使用時(shí)間的增長，濾袋表面吸附的粉塵增多，濾袋的透氣性減弱，使除塵器阻力不斷增大。為保證除塵器的阻力控制在限定的范圍之內(nèi)，由脈沖控制儀發(fā)出信號(hào)，循序打開電磁脈沖閥，使氣包內(nèi)的壓縮空氣由噴吹管各噴孔噴射到對應(yīng)的文氏管(稱為一次風(fēng))，并在高速氣流通過文氏管時(shí)誘導(dǎo)數(shù)倍于一次風(fēng)的周圍空氣(稱為二次風(fēng))進(jìn)入濾袋，造成濾袋瞬間急劇膨脹，由于反向脈沖氣流的沖擊作用很快消失，濾袋又急劇收縮，這樣使積附在濾袋外壁上的粉塵被清除。落下的灰塵進(jìn)入灰?guī)臁ustygascomesintodustcollectorbodyfromairinlet,finedustparticlesareseparatedatexternalwalloffilterbagduetotheeffectoffilterbag.Purifiedgaspassesthroughthefilterbagaswellastheventuritubeandthenexhaustsfromtheairoutletofuppertank.Astheincreaseofservicetime,moredustisadheredtothesurfaceoffilterbagandtheairpermeabilityoffilterbagislowersothattheresistanceofdustcollectorincreasescontinuously.Inordertoensuretheresistanceofdustcollectoriscontrolledwithinlimitrange,thepulsecontrollersendsoutasignaltoopenelectromagneticpulsevalveinproperorder,thecompressedairinairbagisejectedtocorrespondingventuritubebyeachjetholeonblowingpipe(calledprimaryair),whenhighspeedairflowpassesthroughventuritube,theambientair(calledsecondaryair),ofwhichtheinductioncoefficientistwiceasprimaryair,comesintofilterbag,resultingininstantrapidexpansionoffilterbag,becauseoftheimpacteffectofreversepulseairflow,itdisappearsquickly,thefilterbagretractsrapidlyagain,sothatthedustaccumulatedatexternalwalloffilterbagisremoved.Thefallendustcomesintodustbunker.由于清灰是輪流向幾組濾袋分別進(jìn)行，并不切斷需要處理的含塵空氣，所以在清灰過程中，除塵器的處理能力不變。Dustremovalrespectivelycarriesouttoseveralfilterbagsinturnanddonotcutoffthedustyairrequiredtobehandled,soduringdustremoval,thehandlingcapacityofdustcollectorisconstant.噴吹系統(tǒng)簡況：噴吹系統(tǒng)的組成如圖三，脈沖閥A端接壓縮空氣氣包，B端接噴吹管。脈沖閥是背壓式控制閥，控制動(dòng)作由控制儀發(fā)出指令。在控制儀無信號(hào)輸出時(shí)，控制閥的活動(dòng)鐵芯封住排氣口，脈沖閥處于關(guān)閉狀態(tài)；當(dāng)控制儀發(fā)出信號(hào)時(shí)，控制閥將脈沖背壓室與大氣相通，脈沖閥開啟，壓縮空氣由氣包通過脈沖閥經(jīng)噴吹管小孔噴進(jìn)文氏管，造成濾袋內(nèi)瞬時(shí)正壓，實(shí)現(xiàn)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脈沖控制儀Pulsecontroller脈沖控制儀是電脈沖除塵器的主要控制裝置。它輸出的信號(hào)控制電磁脈沖閥，噴吹的壓縮空氣對濾袋循序清灰，使除塵器的阻力保持在設(shè)定的范圍內(nèi)，以保證除塵器的處理能力和除塵效率。脈沖寬度和脈沖周期是衡量沖控制儀的兩個(gè)重要參數(shù)。根據(jù)用戶要求，現(xiàn)提供兩種型號(hào)控制儀：一種為意大利Mecair公司原裝進(jìn)口產(chǎn)品，一種為國產(chǎn)優(yōu)質(zhì)產(chǎn)品。它們都具有定時(shí)清灰，定壓差清灰優(yōu)點(diǎn)，同時(shí)具有全封閉的外殼，防塵性能好，安裝方便。兩種產(chǎn)品有不同的性價(jià)比，以滿足不同用戶要求。Pulsecontrollerisamaincontroldeviceofelectricpulsedustcollector.Thesignalsentoutbyitistocontrolelectromagneticpulsevalve,andtheblowingcompressedairremovesdustforfilterbaginproperordersothattheresistanceofdustcollectorholdswithinasettingrangetoensurethehandlingcapacityofdustcollectoranddustcollectionefficiency.Pulsewidthandpulseperiodaretwoimportantparametersformeasuringthepulsecontroller.Accordingtotherequirementsofusers,nowweprovidetwotypesofcontroller:oneisoriginallyimportedproductfromItalyMecaircompany,theotheristhedomestichighqualityproduct.Bothofthemhavesuchfeaturesastimingdustremoval,dustremovalwithconstantpressure,meanwhile,theyhaveclosedcasing,gooddustproofperformanceandeasyinstallation.Bothproductshavedifferentperformancesandpriceratiostomeetdifferentusers'requirements.4.1.1意大利Mecair公司生產(chǎn)的脈沖控制儀PulsecontrollerproducedbyItalyMecaircompany型號(hào):MCSModel:MCS規(guī)格:MCS-4,8,12,16,20,24,28Spec.:MCS-4,8,12,16,20,24,28電源:AC220V±10% 50HZPowersupply:AC220V±10% 50HZ輸出電壓:AC220VOutputvoltage:AC220V功率:50WPower:50W脈沖寬度:0.01~10SPulsewidth:0.01~10S脈沖周期:1~1000sPulseperiod:1~1000s壓差輸出:4~20mADifferentialpressureoutput:4~20mA貯存溫度：-20~+80°CApplicationtemperature:-10~+50°C使用溫度：-10~+50°CStoragetemperature:-20~+80C4.1.2國產(chǎn)脈沖控制儀Domesticpulsecontroller型號(hào)：DMK-3CSModel:DMK-3CS規(guī)格：DMK-3CS-4,6,8,10,12,14,16,18,20Spec.:DMK-3CS-4,6,8,10,12,14,16,18,20輸入電壓：AC220V+10%~-20%Inputvoltage:AC220V+10%~-20%輸出電壓：DC24VOutputvoltage:DC24V功率：8WPower:8W脈沖寬度：0.03~0.2SPulsewidth:0.03~0.2S脈沖間隔：1~30SPulsetime:1~30S壓差輸出：4~20mADifferentialpressureoutput:4~20mA使用溫度：-25~+55CApplicationtemperature:-25~+55C4.2電磁脈沖閥Electromagneticpulsevalve電磁脈沖閥是電脈沖除塵器噴吹清灰系統(tǒng)的主要裝置，它是向?yàn)V袋內(nèi)噴吹壓縮空氣的開關(guān)，受脈沖控制儀輸出信號(hào)的控制。它是將脈沖閥（差動(dòng)氣閥）與先導(dǎo)閥（控制閥）組合在一起，除閥體進(jìn)氣口與儲(chǔ)氣筒金屬管連接外，閥體本身無軟管連接，造型新穎，結(jié)構(gòu)合理，安裝方便，工作可靠，壽命長，清洗力大，耗電最小，閥體采用鋁硅合金鑄成，經(jīng)表面處理后具有一定的防腐蝕能力。根據(jù)用戶需要可提供原裝進(jìn)口件和國產(chǎn)優(yōu)質(zhì)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公司生產(chǎn)的電磁脈沖閥ElectromagneticpulsevalveproducedbyItalyMecaircompany型號(hào)：VEP206Model:VEP206電壓：AC220VVoltage:AC220V功率：16WPower:16W使用溫度：-20~+80°CApplicationtemperature:-20~+80°C壽命：噴吹100萬次Servicelife:blowing1milliontimes4.2.2國產(chǎn)電磁閥Domesticelectromagneticvalve型號(hào)：DMF-Z-20Model:DMF-Z-20電壓：DC24VVoltage:DC24V功率：6WPower:6W使用溫度：-10~55°CServicelife:blowing1milliontimes壽命：噴吹100萬次Applicationtemperature:-10~55C4.3文氏管Venturitube文氏管是清灰系統(tǒng)誘導(dǎo)二次風(fēng)，加強(qiáng)壓力波的重要部件。Venturitubeisanimportantpartfordustremovalsysteminducingsecondaryairandforreinforcingpressurewave.濾袋框架(龍骨)Filterbagframe(keel)能支撐濾袋在負(fù)壓狀態(tài)下仍保持有效的過濾面積。采用鼠籠式結(jié)構(gòu)，框架挺拔，剛性好，安裝方便。Itisabletosupportfilterbagtoholdeffectivefilteringareaundernegativepressure.Adoptsquirrelcagestructure,theframeisforcefulwithgoodrigidityandiseasytoinstall.4.5濾袋Filterbag濾袋是過濾含塵氣體的部件。除塵器過濾效果的好壞關(guān)鍵在于濾袋材質(zhì)，用戶可根據(jù)工況條件及除塵效率等選擇適宜濾料。Filterbagisapartforfilteringdustygas.Thematerialoffilterbagisthekeytofilteringeffectofdustcollector.Usersmayselectapplicablefilteringmaterialsaccordingtoworkingconditionanddustcollectionefficiency.五、安裝與使用Installationandusage設(shè)備起吊時(shí)，應(yīng)注意避免碰損箱體及配件。Payattentiontoavoidbreakingthetankandaccessorieswhenliftingequipment.安裝前對除塵器各部件進(jìn)行全面檢查，零部件是否完好齊全，如發(fā)現(xiàn)缺少損壞或變形者，要修整補(bǔ)齊后方可安裝。Carryoutcompleteinspectionforeachpartofdustcollectorbeforeinstalling,seeifthepartsareundamagedandcomplete,ifanymissing,damageordeformationisfound,itshallberepairedbeforeinstalling.除塵器各法蘭之間應(yīng)嵌入密封填料才能擰緊螺栓，保證箱體密封可靠，防止漏氣。Insertthesealpackingintoeachflangeofdustcollectorbeforescrewingdownthebolts,ensurethetankissealedandreliable,andpreventairleakage.各人孔，檢查門等處均應(yīng)有密封嵌條，以保證其密封性。Eachmanhole,accessdoorshallhavesealingstriptoensureitssealability.濾袋要逐條檢查。Checkfilterbagonebyone.濾袋安裝時(shí)必須垂直于固定花板：側(cè)抽式濾袋用卡箍卡于濾袋框架上；上抽式采用彈性漲圈濾袋，安裝時(shí)先把彈性漲圈壓縮，然后放入花板孔內(nèi)再打開，將濾袋牢固定位，最后將濾袋框架卡于其上。Itmustbeverticaltofixedtubesheetwheninstallingfilterbag:side-drawfilterbagisclippedonfilterbagframebytheclamp;up-drafttypeadoptsexpansionringfilterbag.Wheninstalling,compresstheexpansionringfirstly,thenopenafterputtingintheholeoftubesheet,fixthefilterbagfirmly,finallyfitthefilterbagframeonit.噴吹管固定后，其噴吹孔應(yīng)對準(zhǔn)文氏管中心。Theblowingholeshallbecenteredonthecenterofventuritubeafterblowingpipeisfixed.氣包、電磁脈沖閥噴吹管的連接應(yīng)可靠密封，不得有漏氣現(xiàn)象。Theconnectionbetweenairbagandelectromagneticpulsevalveblowingpipeshallbereliablysealed,withoutanyairleakage.除塵器進(jìn)風(fēng)口、出風(fēng)口側(cè)連通測壓接頭以測量阻力。根據(jù)阻力上升情況，確定噴吹間隔時(shí)間，保證設(shè)備正常運(yùn)行（根據(jù)要求可取消阻力測量）。Sideofairinletandoutletofdustcollectorconnectstopressuretestingadaptertomeasureresistance.Accordingtotheresistanceincreasesituation,determineblowingintervaltimeandensurenormaloperationofequipment(cancelresistancemeasurementasrequired).噴吹用壓縮空氣應(yīng)去污除油，壓縮空氣在接入除塵器氣包前應(yīng)設(shè)油水分離TO器。Thecompressedairusedforblowing,shallbecleanedandremovedoil.Itshallhaveoilwaterseparatorbeforecompressedairistakenindustcollector.開車步驟(停車步驟與之相反)Startsteps(stopstepsareinreverse)泄去油水分離器和儲(chǔ)氣罐內(nèi)的凝結(jié)水，壓縮空氣的壓力應(yīng)保持在4~0.6MPa范圍內(nèi)。Drainoutthecondensationwaterinoilwaterseparatorandaircylinder.Thepressureofcompressedairshallholdintherangeof0.4~0.6MPa.5.11.2開控制儀Startcontroller合上空氣開關(guān)，打開脈沖控制儀上的電源開關(guān)，開始噴吹。Turnoffairswitch,turnonthepowerswitchonpulsecontrollertostartblowing.檢查每一個(gè)電磁閥是否動(dòng)作。如果沒有動(dòng)作，請檢查電磁閥的接線是否正確。Checkandseeifeachsolenoidvalveisactive.Ifnoaction,pleasecheckthewiringofsolenoidvalveiscorrect.調(diào)節(jié)脈沖間隔、脈沖寬度的大小。通過脈沖控制儀上的兩個(gè)旋鈕根據(jù)工況條件進(jìn)行調(diào)節(jié)。Adjustthepulseintervalandthesizeofpulsewidth.Carryoutadjustmentthroughtwobuttonsonpulsecontrolleraccordingtoworkingcondition.六、故障原因與排除方法Failurecauseandeliminationmethod除塵器投入運(yùn)行后，應(yīng)設(shè)專人管理維修，熟悉除塵器工作原理及技術(shù)性能掌握調(diào)整與維修方法，每班巡回檢查，建立運(yùn)行記錄。6.1Itshallarrangepersonneltomanageandmaintain,familiarizetheworkingprincipleandtechnicalperformanceofdustcollector,toknowwellaboutadjustmentandmaintenancemethodsandtocarryoutitinerantinspectionbyeachshiftandestablis