項(xiàng)目-pl19-3操作維修手冊(cè)1.050english

蓬萊油氣田開(kāi)發(fā)項(xiàng)PL19-3II期鉆機(jī)模塊操作維修手（1.0~5.01.0~5.0總體、工藝、安全操作維修手概 簡(jiǎn) 環(huán)境條 平面布 模塊鉆 主要模塊簡(jiǎn)介 吊裝模塊及模塊內(nèi)組成列表如下 鉆完修井機(jī)總體圖紙如下 工藝系 低壓泥漿系 高壓泥漿系 巖屑回注系 公用系 柴油系 鉆井水系 排放系 發(fā)電機(jī)房排煙系 發(fā)電機(jī)房冷卻系 井控系 動(dòng)力系 公用氣系 安全消防系 概 固定式FM200滅火系 便攜式滅火裝 圖 1.0~5.0總體、工藝、安全操作維修手概 簡(jiǎn) 環(huán)境條 平面布 模塊鉆 主要模塊簡(jiǎn)介 吊裝模塊及模塊內(nèi)組成列表如下 鉆完修井機(jī)總體圖紙如下 工藝系 低壓泥漿系 泥漿混合系 泥漿輸送系 泥漿計(jì)量灌注系 船供泥漿系 鉆凈化系 高壓泥漿系 高壓泥漿泵入系 節(jié)流壓井系 巖屑回注系 公用系 柴油系 鉆井水系 排放系 發(fā)電機(jī)房排煙系 發(fā)電機(jī)房冷卻系 井控系 動(dòng)力系 公用氣系 安全消防系 概 采用規(guī)范與標(biāo) 安全原理要 區(qū)域劃 逃生路 固定式FM200滅火系 概 鉆機(jī)模塊FM200滅火系統(tǒng)的組成和布 FM200滅火系統(tǒng)工作原 FM200滅火系統(tǒng)主要性能及技術(shù)參 FM200滅火系統(tǒng)工作程序與控制方 FM200滅火系統(tǒng)的用 FM200滅火系統(tǒng)的操作與.......................................................便攜式滅火裝 手提式CO2滅火裝 手提式干火 圖 340C、D、140B，1241124A井口平臺(tái)C、D、E均設(shè)有定員60人的生活樓，供鉆井和生產(chǎn)人員居住。在中心平臺(tái)旁的井口平臺(tái)B設(shè)有定員100人的生活樓。井口平臺(tái)F設(shè)有定員20人的生活樓，供從2006到2010年鉆、完井作業(yè)將使用自升式鉆井平臺(tái)和模塊鉆機(jī)聯(lián)合完成。鉆井?dāng)?shù)目預(yù)計(jì)為：169口生產(chǎn)井，54口注水井和5口巖屑回注井。每個(gè)井口平臺(tái)都有巖屑回WHPWHPWHPWHPWHPWHP最低環(huán)境空氣溫度-最高環(huán)境空氣溫度最低海水溫度-最高海水溫度海水密度海水粘度熱傳導(dǎo)率W/m-海水電阻率Ω-25-水深1風(fēng)、浪、海流方向5050風(fēng)速5550842888828055浪高776555667海浪周期表層海流速度4440555277725520中層海流速度1117552011172204底層海流速度1117222011172204100風(fēng)、浪、海流方向5050風(fēng)速2227058333380722浪高9997338944883799海浪周期表層海流速度7775144822258852中層海流速度1112114844728827底層海流速度11128885447255270.04s＜TSa=0.191g×0.10s＜TSa=0.191g0.40s＜Sa=0.191g×0.833T-下面介紹的模塊鉆機(jī)是渤海二期工程中為40口井的井口平臺(tái)專(zhuān)門(mén)設(shè)計(jì)和制造的，設(shè)計(jì)周期20年。該設(shè)計(jì)采用了墨西哥灣模塊鉆機(jī)的設(shè)計(jì)理念，即根據(jù)平25鉆采已有井的部分井段，下套管和加固生產(chǎn)套管（12-1/4″井眼，9-5/8″鉆采油藏井段（8-1/2"）API由于項(xiàng)目組對(duì)蓬萊19-3井口平臺(tái)B、D、E的設(shè)計(jì)與井口平臺(tái)C相似，下面僅C處理罐76m3，泥漿罐76m3。攪拌器、液位計(jì)、變送器和泥漿設(shè)備管線等將永久除氣 號(hào)處理 號(hào)處理 計(jì)量 6.4巖屑收集 泥漿罐包括1號(hào) 2號(hào) 號(hào) 加藥 8.15加藥 該甲板將放置由第提供的鉆井廢棄物處理裝置其功能是將鉆井產(chǎn)生的巖屑處BOP最后一個(gè)放置設(shè)備和工具籃。絞車(chē)頂篷放置站和鋼絲繩滾筒（31.8m3VV（1）1（西側(cè)混合/輸送泵輸送泵（50HP（巖屑回注泵（單獨(dú)吊裝（第提供（15HP（（2）2（東側(cè)增壓泵計(jì)量泵1（單獨(dú)吊裝1（單獨(dú)吊裝2（單獨(dú)吊裝2（單獨(dú)吊裝除氣器離心機(jī)（第提供310HP310HP25HP（5）1噴淋泵（6）1800HP風(fēng)機(jī)馬達(dá)（僅用直流電（7）2噴淋泵（8）2800HP風(fēng)機(jī)馬達(dá)（僅用直流電（9）巖屑回注泵（第提供（10）1（11）2（12）（13）1（14）2鉆井廢棄物處理裝置（第提供12防噴器關(guān)閉裝置800HP鋼絲繩滾筒（單獨(dú)吊裝站A2（（34）1（35）2（36）31（散料堆放2（基礎(chǔ)油儲(chǔ)罐（39）1（40）2（41）31234（47）1（48）2（49）3（50）4（51）5（52）2（53）V（55）各設(shè)備參數(shù)詳見(jiàn)圖紙：K1-18P-D-MF-JCA-混合泵從泥漿罐/混合罐/加藥罐的出口管匯吸入泥漿，送入混合漏斗詳見(jiàn)圖紙：K1-18P-D-MF-JCA-0001、K1-18P-D-MF-JCA-詳見(jiàn)圖紙：K1-18P-D-MF-JCA-0001、K1-18P-D-MF-JCA-詳見(jiàn)圖紙：K1-18P-D-MF-JCA-詳見(jiàn)圖紙：K1-18P-D-MF-JCA-鉆凈化系鉆凈化設(shè)備包括分流箱、振動(dòng)篩、除氣器、離心機(jī)、離心泵等的再循環(huán)導(dǎo)致鉆井泵的氣鎖而引起嚴(yán)重井噴事故還可以安全有效地排除氣詳見(jiàn)圖紙：K1-18P-D-MF-JCA-各設(shè)備主要參數(shù)詳見(jiàn)圖紙：K1-18P-D-MF-JKA-詳見(jiàn)圖紙：K1-18P-D-MF-JKA-節(jié)流管匯的作用有：替換出被污染的鉆，同時(shí)控制井口套管壓力與立管壓力，恢復(fù)鉆液柱對(duì)井底的壓力控制，制止溢流；通過(guò)節(jié)流閥的泄壓作用，井四通—節(jié)流管匯—鉆氣體分離器—喇叭口。注重鉆實(shí)施壓井作業(yè)當(dāng)已經(jīng)發(fā)生井噴時(shí)通過(guò)壓井管匯往井口強(qiáng)注清水，詳見(jiàn)圖紙：K1-18P-D-MF-JKA-的目標(biāo)，有效地保護(hù)了海洋的生態(tài)環(huán)境（尤其是油基鉆。PL19-3油田共有5口巖屑回注井，每個(gè)井口平臺(tái)1口。具體流程為：振動(dòng)篩—粗屑罐—研磨泵—細(xì)屑罐—研磨泵—巖屑注入泵詳見(jiàn)圖紙：K1-18P-D—MF-JHA- DieseloilTheCplatformprovidesthedieseloilforthethreegeneratorsofthedrillingrig.The customer-generators.Thedieseloilreturnstothediesel throughthereturnpipe outlet,assistedbythereinjectionpumpwiththepressure861KPaGandumflowrate10.22m3/h.theflowchartcanbedescribedas:platform—diesel—firstfilter—secondfilter—generators— Seethedrawing：K1-18P-D-MF-JAA-DrillingwaterThedrillingwatersystemconsistsoffreshwatersystemandseawatersystemwhichsharepipelines.Thedrillingwaterisusedforwashingthewellandcomposingthedrillingfluidwithsalinityfrom1%tosaturationwhichcaninhibittheclayhydrating.Thedrillingwaterwillgothroughthehoseconnectiontothecustomersorisprovidedbysupplyvessels.Seethedrawing:K1-18P-D-MF-JAA-0002GeneralDrainWeconsideralltherigdrainsasnotdangerousones.Thegeneraldrainsystemdivideintotwolines:1.thedrainsfromsuchasdrawworks,BOP,drum,setback,etctothecourseofCRIsystem;2.thefloordrainsoftheengineroomandbottomdeckwillintegrateintothedrainsystemoftheplatform.Seethedrawing：K1-18P-D-MF-JAA-EngineexhaustTherearethreesetsofgeneratorsintheengineroomwithonesmokepipeforeachset.Seethedrawing：K1-18P-D-MF-JAA-0008EnginecoolingThethreesetsofgeneratorsintheengineroomdrivenbydieseloilwiththepower1686HP，1257KWhaveaseparatereservoir(capacity208.2L)foreachwithumpressure138kPaG.Theenginecoolingsystemiswatercoolingwithtwopilinescycle.Seethedrawing：K1-18P-D-MF-JAA-0009WellcontrolWellcontrolsystem,asessentialpartofthedrillingandworkover,istobalancethewellpressurebytakingsomemeasurestocontrolthestrataporepressurewithgroundcontrolstack,forthepurposetoensurethewellgoingofthedrilling.BOPandtheBOPclosingunitareimportantpartofthewellcontrolsystem.Seethedrawing:K1-18P-D-MF-JEA-0001HydraulicThehydraulicsystemprovidespowerforthedrillinglinespooler,drillfloordrawcrawlersandsoon.Thehydraulicpowerunitincludesthe757Ldiesel ,twocentrifugalpumpswithflowrate204L/minandpressure.Theflowrateandpressureofusers/customersarefollowing:steelwirespooler76L/min，20.68MPa；drillfloor 246L/min，9.7MPa；twodrillfloorcrawlers42L/min，13.8MPaandtwodrillmastcrawlers:102L/min，13.8MPa.Seethedrawing:K1-18P-D-MF-JFA-0001UtilitiesairTheutilitiesairsystem,servingsuchequipmentasp aticinstrumentcontroller, aticequipmentandutilitiesstationconsistsofaircompressor,dryer,airreservoirs(1.5M3)withutilitiesairpressure861.8kPa.thecompressedairofdrillingandworkoverisfromtheplatformandtheprovisionbyscrewcompressor.Seethedrawing:K1-18P-D-MF-JJA-0001 SafetyandfirefightingApplicableNormsandThesafetysystemofPL19-3DCWRappliesthefollowing《OffshorePlatformSafetyRegulationStateEconomicandTrade《InternationalConventionfortheSafetyofLifeatSea(SOLAS)NationalStandardofPRC《DesigningStandardforFire-fightingSystemwithcleangas,Heptafluoropropane(HFC-227ea)》API(AmericanPetroleumInstitute) mendedPracticeforManufacturingEquipmentsonOffshoreStructure》 《 mendedPracticefor ysis,Design,InstallationandTestingofBasicSurfaceSafetySystemforOffshoreProductionPlatform》 mendedPracticeforFirePreventionandControlonOpenTypeOffshoreProductionPlatform》 mendedPracticeforDesignandHazards forOffshoreProductionFacilities》APIRP500《mendedPracticeforClassificationofLocationsforElectricalInstallationatPetroleumFacilitiesClassifiedasClassI,Division1andDivision2》NFPA(NationalFireProtectionAssociation)StandardNFPA10 Handfire-extinguisherNFPA70 NationalElectricalCode(NEC)NFPA72 Alertandsignalsystem Fire-fightingsystemwithcleanKeypointsofthesafetyTheisolationoftheflammableairsupplyfromtheThefireareaisisolatedeffectivelyfromtheflammableairTheutilitiesareaislesshazardousTheflammableequipmentshouldbeputinthesafeAtanytime,preventthesolid,liquiddispersionandgasleakagetoprotecttheenvironment.ThehydrocarbonsolidshouldbetransportedtoonshoreincontainersfordisposalandthehydrocarboncontentofdischargedliquidshouldaslittleasstipulatedintheChineselawsandregulations.Theclosespacewithexplosivegasshouldadoptforcedventilationwithexchangeofairattheleastrateof12times/htheintakeoftheairductshouldbeequippedwiththeflammablegasdetectortomonitortheaircondition:whentheflammablegascontentreachesthelowervalue(20%)oftheexplosionlowerlimit,thefirepanelinhecontrolcenterwillalarm;whenreachthehighvalue(50%),thefiredamperwillcloseandthefanstoprunning.Thefiredamperscanbecontrolledbythefirepanelandflammablegasdetectingsystem;Thedesign,fabrication,installationandtestingoftheemergencypowersupplyshouldmeetthestipulationofCCS“Fabricationclassificationstandardforoffshoreplatform” Theemergencygeneratorwillsupplypowerforthefollowingsystemfor8ESDfireandflammablegasdetectingEmergencylightingAlarmingandbroadcastingHelicopterdeckmarkerEmergencyradioNavigationFirefightingpumpUPSwillsupplypowerforthefollowingequipmentforatleast0.5·ESDfireandflammablegasdetecting·Alarmingandbroadcasting·Helicopterdeckmarker·Emergencyradio·Navigation WhenthemainpowersupplyandUPSpowersupplydonotwork,thestandbyDCpowerwillsupplypowerforthenavigationequipmentfor96 Themainescaperoutesandimportantroomsincludingtheemergencyengineroom,batterycellroom,controlcenter,mainswitchroomandairconditionerroomhavelightingwithselfpowersupplyordbyUPSfor0.5hour.UPSandthebatterysystemshouldbeputseparayinsafeareawithA60firewallenclosureandenoughventilation,awayfromthemainpowerThedieselstorageintheactive isenoughfortheemergencygeneratortorun18hourswithfullload.TheemergencypowersupplyshouldbepositionedinthesafetyareawithAfirewallenclosure,isolatedfromthemainpowerandallpotentialfiresource.Oncethemainpowersupplyfails,theemergencypowerwillauto-start. Theemergencyventilationsystemwhichconsistsofalarmingsystem,wirebroadcastingandemergencyradiosystemcanmeettherequirementofrelatedstandardsandregulations. Thealarmwillbeheardbyeverywhereoftheplatformthroughthewirebroadcastingandvisiblelightingalarmisinstalledinhighnoisyarea;Theplatformisequipmentwithinfirmary,PPEandrescueequipment,HazardousareaclassificationApplicablestandard: APIRP500。ClassI——alocationinwhichignitableconcentrationsofflammablegasesvaporsexisitcontinuouslyorperiodicallyundernormaloperatingClass2——alocationinwhichflammablegasesorvaporsmaybepresentunderabnormalconditions.Non-hazardouslocation——alocationnotclassifiedasclass1andclass2GroupB:atmospherescontaininghydrogenandothergases.GroupD：Atmospherecontainingbutane,gasoline,hexane,methane,gas,propaneandmostotherhydrocarbongasesandvaporsencounteredinoilandgasproduction. EscapeTherigontheupperdeckoftheplatformcanbeconsideredaslargeequipment.Thehugerigitselfcanbedividedintothreelayersandwhentheurgencyorotherincidentshappen,thecrewshouldescapethroughtheescaperouteswhichareconnectedtotheescaperoutesontheupperdeckoftheplatform.Oncetheplatformmanagergivesthecommand,the nelshouldgathertothepointofassemblyquicklyandsafety.SeethedrawingsforescaperouteFixedFM200fireextinguishingtheapplicationhistoryofHFC-ea227inSinceitwasfoundthatchlorinefluorinehydrocarbonincludingthehalonextinguishingagentwoulddeterioratethelivingenvironmentbydamagingtheozonosphere,thecountriesconcludedtheMontrealAgreementanddevelopedmanysubstituentstotakeplaceHalonextinguishingagent.Inconsiderationoftheperformancerequirementstothesubstituent,HFC-227eaextinguishingagentshouldbepromotedwidelyforusefromtheeconomyview.HFC-227ea(chemicalnameHFC-227eaandmolecularformulaCH3CHFCF3)issuchkindofgas/vaporwhichcanbeliquefiedbylowpressureforstorage.Thisdesignisfullfloodingtype,whichismainlychemicalextinguishingtypebutwiththeadvantageofgasextinguishers.Thankstoitssafety,thissystemcanbeusedforprotectiontheareascrowdedwithworkers.theextinguishingtheoryofHFC-Higheffectiveness:applyingthe8.3%designedconcentration,itiseffectivetostampouttheelectricalfirecausedbyBandCfireagents.Pollutionfree:itcanbeliquefiedwithlowpressureforstorage;thisdischargedagenthasthecharacteristicsofnon-blobs,notrace,leucoandsmelllessandhasnodamagetotheozonosphere.non-conducting：Withthecharacteristicsofgoodinsulationandcorrosiveblobbingtotheelectricalandelectronicequipment,itissuitabletowetdowntheelectricalfire.Smallstoragespace:withthecharacteristicsofhighcriticaltemperature,lowcriticalpressure,itcanbeliquefiedforstorageunderthemoderatetemperature.Itsprimingdensityissimilartothatofalkylhalide1301,requiringsmallerstorageroom.Lowworkpressureofthepipework:thestoragepressure(2.5MPaor4.2MPa)increasesataratelowerthanthatofalkylhalide1301inthehighesttemperature,thuslessrequirementsforthepipenetworkpressureneedtobemet,whichismoreFM200fireextinguishingsystemcompositionandlayoutontherigTheFM200fireextinguishingsystemisusedforprotecttheengineroom;ThetotaltyofFM200agentispreparedwith100%spares:10bottlesengineroom(5bottlesforuseand5forFM200fireextinguishingsystemconsistsofthreeparts:fireextinguishingcontrolsystem,fireextinguishingsystemandfirealarmsystem,i.e.,firepanel,manualdischargingstation,FM200bottles/cylinders,FM200dischargingmanifold,pipenetworkandnozzles,reliefpressureswitchandaudibleandvisualalarmintheprotectedarea.FM200fireextinguishingsystemoperatingWhenthereisfireintheprotectedarea,thesmokeorheatwillbedetectedbythefiredetectorsetintheprotectedareaandthefirepanelwillsendafiresignal.Afterthefireinconfirmedonthatspot,startthemanualdischargingstationandoperateinthefollowingproceduresthroughthealarmingandfirecontrolsystems:startthelinageequipment(forexample:shutdownthepower,stoptheventilationandclosethewindowanddoor)andme ,theaudibleandvisiblealarmsendthesignaloffire.Afterthetimedelayof0～30siscompleted,opentheelectromagnetstarter,FM200headvalve,areareliefvalve,dischargingtheFM200gasinthecylinderstheprotectionareathroughtheheadhose,dischargingmanifold,pipelinesandThedischargeofFM200gaswillbecompletedmanually.Ifthecontrolpanelfailstowork,pressdownmanuallythehandleontheFM200headvalvetoputoutthefire.Seethedetaildescriptioninthevendordata.Designed4.2EachCylinder120umFillingDesigned4.2EachCylinder120umFilling786.96Cylinders10（5foruse5 457.18 6 Startcylinder2 DistributionPressureswitchofthepipenetworkProtection/explosionproofIP56/ExdIIVoltage,Set1DCExplosion-proofExdIIJointElectricFanCirculating BSGQ-DetectorsandEXheatsEXsmokeEXemergency OperationElectricorair-drivenremoteManualstartforOutline5000×3500×2600WorkproceduresandcontrolmodeofFM200fireextinguishingsystemPL19-3DCWRprojectapplytheHFC-ea227fireextinguishingsystemprovidedbyShanghaiJindunFireSecurity.toprotecttheengineroom.Thecontrolmodesofthissystemwithsparecylindersincludeautomaticoperation,manuallyoperationandmechanismemergencyoperation.AutomaticTwoindependentcircuitsofsmokedetectingandheatdetectingaresetintheprotectedarea.Whenthefirstdetectorsendsthefiresignaltoalarmandindicatethefirelocation,warningthe nel;whenthesenddetectoralsosendthefiresignal,theautofireextinguishingcontrollerwillopenthesolenoidvalveontheNitrogenlineandthedelayoftime(0-30sadjustable)willbegin.Meanwhile,theevaluatingsignalwassentouttoclosethelinkageequipment.Afterthedelayoftimeiscompleted,extinguishingorderissentouttothedrivingcylindersolenoidtoopenthecontainervalve.ThenitrogengaswillopenthedistributionvalveandHFC-ea227cylindertoputoutthefire.Me,alarmcontrollerreceivesthefeedbacksignalfromthepressuresignalsenderandthedischargeindicatinglampwillshine.ManualAfterthe ondutyconfirmsthefire,pressdowntheemergencystartbuttononautoextinguishingcontrolleroronthemanualcontrolpanelandtheautofireextinguishingcontrollerwillopenthesolenoidvalveontheNitrogenlineandthedelayoftime(0-30sadjustable)willbegin.Meanwhile,theevaluatingsignalwassentouttoclosethelinkageequipment.Afterthedelayoftimeiscompleted,extinguishingorderissentouttothedrivingcylindersolenoidtoopenthecontainervalve.ThenitrogengaswillopenthedistributionvalveandHFC-ea227cylindertoputoutthefire.Me ,alarmcontrollerreceivesthefeedbacksignalfromthepressuresignalsenderandthedischargeindicatinglampwillshine.ManualMechanismEmergencyWhenthefireoccursintheprotectedareaandthepowersupplyfailsorthecontrolsystemanddetectingsystemsdonotworkwell,openthedistribution/selectorvalveintheHFC-ea227cylinderroom,pulltheringofthegasstarterontheheadvalveandpressthemanualbuttonstoopenthecylinders.TheHFC-ea227agentwillbedischargedtoputdownthefire.SparecylinderDuringchargingthemaincylinders,turntheM-Rchange-overswitchtothe“”position,thesparecylinderscanbeusedtoextinguishthefirebyautooperation,manualoperationandmechanismemergencycontrolastheabovementionedprocedures.Secondextinguishing:thesecondextinguishingoperationisrequiredwhenthefirstoneisnoteffectiveandonlyneedopenthe cylinderstodischargetheEmergencystopWhenthefireoccursbutthefireextinguishingsystemisfoundunnecessaryinthedelaytime,pressdowntheemergencystopbuttonontheautocontrollerorthemanualcontrolpanel.Theextinguishingorderwillbeholdbackandtheextinguishingprocesswillstop.FM200(1)protectionarea：EngineroomFM200usage： 457.18kg 120L×5cylindersRemainsofeachcylinder:3Thetyofthecylindersintheprotectionareaistheoneforusewiththe100%sparesmaintained.Seethedetaildivisionoftheareaandcylindersinthedrawing:PIANDINSTRUMENTDIAGRAMFORGASEOUSEXTINGUISHINGSYSTEM。FM200FireextinguishingsystemoperationandThedailyinspectionandmaintenanceisimportantforthesystemtokeepagoodconditioninworkingandatstandby.ThetrainedinspectorshouldperformdailythoroughlyvisualChecktheMethod1:inspectthecylinderspressureperiodicallyandiftheHFC-ea227agentpressureisfoundlowerthan3.6MPa,re-checkbysealingthecylinderorchangenewone.Method2:weigheachFM200cylinderandifthelossofweightismorethan5%,investigatetheleakagecauseandchangenewoneorreplenish.Me,inspectthenitrogengaspressureofthestartcylindersperiodicallyandifthepressureisfoundlowerthan5.5MPa,re-checkbysealingthecylinderorchangenewone.Flushthepipelinesnozzlesectionbysectionwithcompressedairornitrogenonceatleasteverythreeyears.2)thesystemmustbekeptingoodworkstateandthemaintenanceworkersaretrainedoneswhowillshootthetroublesimmediaywhensomethingiswrongtothesystemandmakedetailrecords.afterthesystemisused(theHFC-ea227agenthasdischarged),theoverhaulshouldbeperformedbythemanufacturerorthequalifiedfireequipmentfabricatoror（3sincetheresolventoftheHFC-ea227agentinhightemperaturedoharmthehealth,the nelshouldevaluatefromtheprotectedareaafterthefiresignalissentout.Whenthefireisputout,starttheventilationfansfirstly.AftertheremainedHFC-227eaisexhausted,the nelcanentertheprotectedarea.Thusthecustomerisadvisedtoestablishemergencyrescuesystemandgivenecessarytrainingtothe nelwithpossibleentrancetotheprotectedarea.（4）Regardingtotheelectricalsystemmaintenance,pleaserefertothePortablefireHandCO2fireGeneralCO2extinguisher,theonewithpressedgas,isdischargedbythe pressureofthelquiefiedCO2gas,usedforeliminatingthefireinsmallarea.Whenthevalveisopen,theliquidCO2risesalongthesiphonpipetothenozzleandturngas,withexpanded500timesvolume.Theexpansionintakesmuchheatandthetemperaturedeclinerapidly.Whenthetemperaturedeclinesto-78.5℃,someCO2condensatestobesolidlikesnowflowerwhichcanreducethetemperatureoftheburned,isolatetheburningfromtheairanddecreasetheOxygencontentinair.Inthisway,thefireisputout.TheCO2extinguisheristostiflethefireandhavelittleeffecttothecombustible.Whentheflamesdied,continuetodischargetheCO2untiltheoxygencontentoftheairdeclinesto6%.Manyexperiencesindicate:whentheoxygencontentoftheairinthefireareaislower12%andCO2concentrationreachesto30%,mostfirewilldie.ThehandCO2extinguishersaremainlydistributedontheelectricalrooms,readyforextinguishingtheCclassfires. CO2extinguishermaintenanceExtinguishingagent: Extinguishinggrade: 80-Borequivalence 5kgorso ≥2 ≥9Applicable -20toOperationhandlingtheextinguisher,hurrytothefirespotandputtheextinguisherdownatthedistanceof5mfromthefirecenter;Holdthehandleontheendofthespraynozzlewithonehandandmakethenozzleagainsttheflame;PulloutthesafetyHoldthestarthandlewiththeotherHoldthestarthandleandstarttheIfthefireisoutside,standinthesamedirectionwiththeIfthefireisinnarrowroom,theoperatorshouldescapeimmediayafterextinguishingoperation;ThesafetysupervisorinspectsthefireareaafterMakekeepstandstraightinthespraywithoutprotectivegloves,donotholdthespraynozzleormetalpipewithhanddirectly,avoidingfrostbite.afterfireeliminationinside,letairexchange ytoprevent CO2extinguisherputinventing,dryandconvenientDonotputnearheatequipmentorplacewithgoodsunshine,avoidingdeteriorationandineffectiveness.Inspectthepressuregaugeperiodically.Ifthefigurelocatesintheredarea,replenishthegasimmediay.Beforethesupplement,performhydropressuretestwiththepressureof1.5timedesignedone.Ifthetestispassed,itcanbeused.i.PortabledrychemicalThedrychemicalextinguisherisappliedtoputoutthefireonpetroleumanditsproduction,flammablegas,flammableliquidandelectricalequipment.Thepotabledrychemicalextinguishershouldbeputintheventilationanddryplace,avoidingsunshineandradiationtopreventthedrychemical