Background
Earlyfamilykitchenexhaustingworkwasdonebyexhaustfans.Althoughtheexhaustfancanremovemostoftheoilyfumeinthekitchen,itisunabletosolvethepollutionoftheentirekitchencausedbytheoilyfumeduringcooking.Theoilyfumeproducedduringcookingcontainsmanyharmfulsubstancestothehumanbody.IfpeopleareinaroomfullofoilyfumeforalongtimeWorkcancausemanydiseases.
WHO’sresearchreportshowsthatamongthe4.3milliondeathscausedbyairpollutioninthekitchenin2012,34%ofthemsufferedfromstroke,and22wereforchronicobstructivepulmonarydiseaseand22forischemicheartdisease.%And26%,andabout6%diedoflungcancer.
InaresearchprojectondiseaseriskassessmentinthefamousBritishmedicaljournal"TheLancet",kitchenairpollution(smoke)hasbeenlistedasthebiggesthealthhazardafterhighbloodpressure,smokingandalcoholabuse.Everyyear,thenumberofdeathscausedbycontinuousinhalationofsmokefromkitchenfiresismorethanthetotalnumberofdeathscausedbymalaria,tuberculosisandAIDS.
ThestudyonChinesefarmersintheJournaloftheNationalCancerSocietyintheUnitedStatesalsoconfirmedtheimpactofkitchenairpollutiononhumanhealth.ChineseandAmericanscientistsparticipatinginthestudysurveyedmorethan20,000farmersinYunnanProvinceandfoundthatfarmerswhohavenoventilationontheirstovesareabouttwiceaslikelytodeveloplungcancerasthosewhohaveaddedchimneysorventilatorsathome.Researcherssaythatusingastovewithoutventilationissimilartosmokingintermsofcausinglungcancer.
ThedietarystructureofChinesepeopleisdifferentfromthatofWesterners,sothevariety,styleandlayoutofkitchenutensilsareverydifferentfromWesterncountries.Chinaisacountrythatpaysattentiontofood.Infoodprocessing,frying,frying,cooking,andfryingaccountforalargeproportion.Therefore,theoilfumeinChinesekitchensisverylarge,whichcaneasilymakethekitchenenvironmentgreasyandnoteasytoclean,sooilfumeThemachinehasbecomeanecessarymachinetochangethekitchenenvironment.Itchangesthekitchenenvironmentandreducestheharmcausedbyoilfumetothekitchenenvironmentandhumanhealth.
China'sfirstrangehoodwasintroducedbytheMinistryofCommerceofthePeople'sRepublicofChinaattheMunichTradeFairinGermany.Atthattime,thetechnologyandproductappearancewereintroduced.ButitdoesnotcombinetheproductionoftheChinesepeople'sowncookingmethods.Foreignhomecookingmainlyemphasizesmaintainingthenutritionandoriginalflavorofvegetables.Basically,cookingtechniquesofcooking,frying,andfryingwillnotproducemuchfumes.AndthefiercespeculationemphasizedbytheChinesewillproducealotofoilfume.Thesmokinghoodisdesignedusingtheprincipleofrisingheat.Filteredthroughtheoilnetbutnot100%filteredoilfume.
History
Inthelate1970s,theChinesehardwareindustryproposedtodeveloprangehoodsinChina.Limitedbytheconstraintsofvariousconditionsatthattime,nodomesticmanufacturerdevelopedthisproduct.
InJuly1984,Shanghaisuccessfullytrial-producedChina'sfirstexternalexhaustrangehood,whichwasputintoproductioninDecemberofthesameyear,andtheoutputwas629unitsthatyear.ShanghaibecamethefirstregioninChinatodevelopandproducerangehoods.Sincethen,Hangzhouhasalsostartedtrialproductionofrangehoodsin1984,butitwasnotputintoproductionthatyear,anditwasalsooneofthefirstregionstodevelopandproducerangehoods.
In1985,hardwareresearchinstitutessuchasShenzhen,Harbin,Guangzhou,andWuhanalsobegantrialproductionofoilsmoke.ThestainlesssteelproductsfactoriesinShanghai,Hangzhou,Harbinandotherplaceswereofficiallyputintoproduction,whichproducedatotalof15,900units.ItshouldbesaidThisisthefirstyearthatChina'srangehoodshavebeenputintomassproduction.
In1986,Hangzhou,Beijing,Dalian,Donghai,Guangzhou,andGuangdongKaipingalsorushedtojointheranksofthedevelopmentofrangehoods,buttheydidnotputintomassproductionthatyear.In1986,only6companiesproducedmassproduction,withatotalannualoutputof102,600units.
In1987,China'srangehoodmanufacturersjumpedto52,andtheannualoutputalsoincreasedto374,000units.Amongthem,theoutputofGuangdongProvinceincreasedby7timescomparedwith1986,theoutputofShanghaiincreasedby10.3timescomparedwith1986,andtheoutputofHarbinincreasedby1.9times.
In1988,China'soilsmokeproductionenterprisesdevelopedto76,withanannualoutputof1,348,100units.
In1989,theoutputofChina'srangehoodsreached861,000unitsinthefirsthalfoftheyearalone.ButafterJune,affectedbythecountry'seconomicsituation,theproductionandsalesofrangehoodssuddenlydeclined.However,thedevelopmentofrangehoodshasnotstoppedbecauseofthis.Keymanufacturingcompanieshaveturnedtoadjustproductstructureandimproveproductquality,whichhaspromotedtheimprovementandimprovementofproductqualityandfunctionsofrangehoods.
In1990,accordingtothestatisticsof31majormanufacturersofrangehoods,theannualoutputwas1.522millionunits.Accordingtoreports,thenationaloutputofrangehoodsin1990wasabout4millionunits.
In1991,accordingtoonlytheplannedoutputstatisticsofkeyrangehoodmanufacturers,itwas3.02millionunits,andtheactualoutputshouldexceedthe4millionunitsmark.
Aftermorethan20yearsofdevelopment,ithasbecomearelativelymatureindustry.Comparedwithotherhomeappliances,thisindustryisinarelativelyfiercelycompetitiveenvironment.ThemajorrangehoodsrepresentedbythePearlRiverDeltaandtheYangtzeRiverDeltaoccupyamajorshareofthedomesticrangehoodmarket.
FromJanuarytoDecember2006,thecumulativeoutputofrangehoodsnationwidewas10,898,703units,anincreaseof45.74%comparedtothesameperiodin2005.
FromJanuarytoDecember2007,Chineserangehoodcompaniescontinuedtomaintainasteadygrowthmomentum.FromJanuarytoDecember2007,thecumulativeoutputofrangehoodsnationwidewas10,898,703units,anincreaseof45.74comparedtothesameperiodin2006.%.
Inthefirsthalfof2008,despitebeingaffectedbynaturaldisasterssuchassnowdisasters,earthquakes,andfloods,China'srangehoodmarketstillexperiencedbothpriceandsalesincreases.
FromJanuarytoDecember2011,thenationaloutputofhouseholdrangehoodsreached18.95millionunits.TheoldstrategicmapofChina'srangehoodsconsistingofthethreemajorindustrialclustersofZhejiang,Guangdong,andQingdaohasgraduallybeenreplacedbyanewstrategicmapcomposedoffournewindustrialclustersofZhejiang,Guangdong,Sichuan,andShanghai.
WhileChina'srangehoodindustryisdeveloping,someproblemshavebecomeincreasinglyapparent.Inparticular,thenon-standardindustrystandardsforrangehoods,weakscientificresearchanddevelopmentcapabilities,slowtechnologyupgrades,lowenvironmentalprotectionandenergyefficiency,andserioussafetyandpollutionproblemsrestrictthefurtherdevelopmentoftheindustryandtheimprovementofquality.
Mainclassification
Accordingtotheappearance,rangehoodscanbedividedintothreetypes:oneisaChinesestylehood,theotherisaEuropeanstylehood,thethirdisasidesuctiontype,andthefourthisamultimediaintelligence.machine.Itcanalsobedividedintoupperrowtype,siderowtype,andlowerrowtype.
Rangehood(5sheets)
Chinesestylehood
Mainlydividedintoold-fashionedshallowanddeepSuctionrangehoods,especiallyshallowsuctiontype,arethemainobjectstobeeliminated.Itisanordinaryexhaustfan,whichdirectlyexhauststheoilfumetotheoutside.Thebiggestproblemwithdeepsuctionhoodsisthattheytakeupspace,areloud,easytomeet,drippingoil,andfumeisnotclean,shortservicelife,inconvenientcleaning,andlargeenvironmentalpollution.
Europeanhood
Usingmulti-layeroilnettofilter{5-7layers},increasethemotorpowertoachievethebesteffect,thegeneralpowerisMorethan200watts.Thecharacteristicsare:beautifulappearance,relativelyexpensive,suitableforhigh-endusergroups.Mostofthemareflat-screenoilfilterswithhanginginstallationstructures.
Sidesuctiontype
Theadvantageisthatitisnoteasytomeet,theappearanceisfashionable,thesmokingportisclosetothepointwheretheoilsmokeoccurs,thesuctionandexhausteffectisgood,youngpeoplelikeit,thedesignIfitisnotgood,thebottomiseasytoaccumulateoil,andtheconvexpartiseasytoaffecttheoperation.
L-shapedrangehood
TheL-shapedrangehoodisimprovedtosolvetheproblemofsidesuction,andtheoriginalonesideprotrudingsuctionischangedtoupanddownTwosuctionports.Atthebottomofthemainsmokingport,thesuctionpowerisconcentratedinthelowerareaclosetothepointwherethefumeoccurs.Beforethefumeisdiffused,almostallthepowerisconcentratedtosuckitaway.Averysmallpartofthefumethathasnotbeeninhaledrisesalongthefumedeflectortothetop.Theauxiliarysuctionistakenaway.
SmartHood
Usingtheperfectcombinationofmodernindustrialautomaticcontroltechnology,Internettechnologyandmultimediatechnology,itprovidesamodelformodernsmartkitchensandleadsthemodernThekitchenhasenteredadynamiceraofentertainmentandenjoyment.However,thereisstillacertaintechnicalbottleneckbeforetheactualpopularization.
Accordingtothefanmodel,therangehoodcanbedividedintotwotypes:axialflowtypeandcentrifugaltype.Axialfansaregenerallyequippedwithshallowhoods,withlargeairvolumeandlowairpressure;centrifugalfanshavehighairpressure.Therangehoodssoldonthemarketaremainlycentrifugal,sothereisnotmuchroomforchoiceinthemodel.Theyaregenerallyexternalexhausttypewithcentrifugalfans.
Therangehood(3photos)
Accordingtothestructure,therearetwotypesofrangehoods:deepandthin,aswellassemi-deep,EuropeanandsmokeexhaustPulltypeandothermodels.Therearethreetypesofrangehoodsonthemarket:thintype,deeptype,andcabinettype.Thedeep-shapedrangehoodhasahighexhaustrateandcanbematchedwithdifferentstylesofmodernkitchenfurniture.Thedeep-shapedoutercovercansuckcookingfumeinawiderrange.Itsdeep-shapedbodyisconvenientforinstallingapowerfulmotor.Thesmokingrateoftherangehoodisgreatlyincreased.
Thethinrangehoodislightinweight,smallinsizeandeasytohang,butitsthindesignandlowmotorpowerpreventaconsiderableamountofcookingfumefrombeingincludedinthesuctionrangeandhavetheopportunitytoescapeindoors.Itssmokeexhaustrateissignificantlylowerthantheothertwotypesofmodels.
Thecabinet-typerangehoodiscomposedofafumeexhaustcabinetandaspecialrangehood.Thefumecabinetistapered.Whenthefanisturnedon,anegativepressurezoneisformedinthecabinet,andexternalairissuppliedtotheinside,infrontofthefumeexhaustcabinetTheopeningformedanairinlet,sotheoilfumeandotherexhaustgascannotescape,ensuringtheextractionrateofoilfumeandnitrogenoxides.
Accordingtothenumberofmotors,therearetwotypesofrangehoods:singlemotoranddualmotor.
Accordingtodifferentcontrolmethods,rangehoodscanbedividedintomechanicalswitchcontroltypeandelectronicswitchcontroltype.
Equipmentstructure
Therangehoodismainlycomposedofhousing,airduct,fan,checkvalve,oilcollectinganddrainingdevice,lightingdevice,powerswitchandpowercord.
Chassis
Itiscomposedoftwoparts:ashellandapanel.Itismadeofcold-rolledsheetsteelwithplasticspraytreatment,whichisnotonlysmoothinappearance,butalsobeautifulinappearance.Rusty,durableandeasytoclean.
Motor
Themotoristhecorepartoftherangehood.Itusesafullyenclosedsingle-phasecapacitor-operatedasynchronousmotor;theironshellisfullyenclosed,andthemotorbearingItisadoublerowballbearing,theinsulationgradeisEpoleinsulation,andthestartingcapacitorcapacityisabout4microfarads.
Windwheel
Usecentrifugalwindwheel.Itsdiameteris220mm/240mm.Itisstampedfromsiliconalloyaluminumsheet,whichisdurableandunchanging,andhasgooddynamicbalanceperformance.
Airduct
Itisthefluegaschannel,whichismadeofcold-rolledsteelsheetsurfacesprayedwithplastic.TherationalityoftheairductstructuredeterminesthewholeTheexhaustairvolumeandnoiseoftherangehood.
Checkvalve
Madeofplastic,thefunctionistopreventthebackflowoffluegas.
SmokeexhaustDevice
Itiscomposedofanoilcollectingbox,anexhaustpipe,anoilcollectingcupandanoilguidering.
LightingInstallation
OrdinaryChinesestylemachineuses15~40Wincandescentscrewbulb:Europeanstylemachine,nearsuctiontypeadoptscoldThelightsourcelamphasadetachabletransparentplexiglasssheetoutsidetosealthelamptoavoidfumecontaminationandcorrosionofthelampduringcooking,andtoensurethesafetyofelectricalappliances.
Powerswitch
Usinglighttouchswitchormechanicalswitchtocontroltheworkingstate.
Powersavingstrategy
1.Turnonstrongwindwhenstarting
Manypeoplethinkthatusingasmallwindgearforrangehoodscansaveelectricity.Infact,therangehoodconsumesthemostpowerwhenstartingup.Whenthesmallwindshieldisturnedon,itwillrunataslowerspeed,soitwillcostmoreelectricitytostartup,whilethelargewindshieldwillalsosaveelectricitywhenitstartsupbecauseofthefastrunningspeed.Therefore,itisbesttoturnonthehighwindgearfirstandthenloweritwhenstarting.
2,donottakeitapartandwashfrequently
Impropercleaningmethodmayalsoincreasepowerconsumptionduringuse.Frequentdismantlingandwashingofoilfumewillcausedeformationofparts,therebyincreasingresistanceandincreasingpowerconsumption.Infact,oilfumegenerallydoesnotenterthemotor,itisrecommendedtocleanthesurface.
3.Donotwipewhencleaning
Somepeopleareusedtowipetheoilstainsonthefanbladeswhencleaningtherangehood,butthismaycausethebladestodeform,increaseresistanceandwasteelectricity.Therefore,whencleaning,spraycleaningagentonthebladesandletthebladesspindry.
4.Usethesmalllightontherangehood
Somepeopleareusedtoturningonthelightinthekitchenwhencooking,butusethelowpower lightingequipmentontherangehood.Inthisway,notonlycanmakefulluseofthefunctionoftherangehood,butalsosaveelectricity.
5.Don'tuseittoremoveodors
Somepeopleuserangehoodsasventilationequipment,andtheyoftenuserangehoodstodissipateodors.Infact,therangehoodhasasmallerventilationrangeandslowerventilation,soitconsumesmoreelectricity.
Workingprinciple
Therangehoodisinstalledontheupperpartofthestove,therangehoodisconnectedtothepowersupply,andthemotorisdriventomakethewindwheelrotateatahighspeed,sothatanegativeeffectisformedinacertainspaceabovethestove.Inthenipzone,theindooroilfumegasissuckedintotherangehood,theoilfumegasisfilteredbytheoilnet,andtheoilfumeisseparatedforthefirsttime,andthenentersintotheairductofthehood,andtheoilfumegasisseparatedforthesecondtimebytherotationoftheimpeller.,Theoilfumeinthewindcabinetisactedbythecentrifugalforce,theoilmistiscondensedintooildroplets,andiscollectedintheoilcupthroughtheoilcircuit,andthepurifiedfumeisfinallydischargedalongthefixedpassage.
Howtopurchase
Selectioncriteria
Smokeexhaustrate
FirstselectthesmokeexhaustrateHigh.Kitchenoilfumecancauseharmtothehumanrespiratorysystem.Accordingtodata,thedeathscausedbyrespiratorydiseasesinChinaaccountforthefirstcauseofdeath.Soot-typefluorosisandarsenicpoisoninghavebecomeendemicdiseasesofresidentsincertainareas.Thepurposeofinstallingarangehoodistoremoveoilysmokeduringcookingandreduceindoorpollution.Therefore,whenchoosingamodel,youmustfirstchooseahigh-efficiencysmokeextractionsystem.
Negativepressure
Secondly,choosealargenegativepressure.Becausethegreaterthenegativepressureoftherangehood,thestrongerthesmokingability.Asyoumentioned,therangehoodsonthemarketaredividedintoflattype,semi-deeptype,deeptypeandcabinettype.Theyhavedifferent"negativepressurezones"duetodifferentstructures.MostdeeptyperangehoodsThenegativepressureareaisabout0.14cubicmeters,andthesmokeexhaustefficiencyisabout60%.Thenegativepressureareaofthecabinet-typerangehoodisabout0.32cubicmeters,andthesmokeexhaustefficiencyisgreaterthan95%.However,becausethecabinet-typerangehoodadoptsathree-sidedclosedform,thereisnohangingtypethatlooksluxuriousinappearance.
Misunderstandingsinpurchasing
Accordingtoresearch,morethan60%ofnon-smokerswhoinducelungcancerhavelong-termexposuretokitchenfume,andinakitchenenvironmentwithpoorsmokeexhaustion,Theharmtohealthisequivalenttosmokingtwopacksofcigarettesaday,whichcauses1.6milliondeathsworldwideeveryyear.Expertspointedoutthatinadditiontothecorrectcontroloftheoiltemperatureandcookingtime,therangehoodmustbecorrectlyselected.
Duetotheclose-rangesmokingandopendesignoftheside-suctionrangehood,theside-suctionrangehoodhasgraduallyoccupiedthemarketandhasbecomeamajormainstreamintherangehoodmarket.Butinthefaceofmanystylesofsidesuctionmachines,whenchoosingasidesuctionmachine,consumersshouldkeeptheireyesopenandavoidthefollowingsixmisunderstandings.
Misunderstanding1:"Theroundairinletcanentertheairat360°".Manysidesuctionmachinesonthemarkethaveacircularopeninginthemiddleposition,whichclaimstobea360°airinlet.Butinfact,theoilysmokegeneratedbythetwoburnersofthestoveisdistributedonbothsides,andthesmokeinthecentralpositioncanonlyensurethatthesmokeclosesttothecentralareacanenterinalldirections,andthesmokethatisfarawaycaneasilyescape,sothiskindof360°Theairinletisonlya360°opendesign,whichdoesnotrealizethefullentranceofsmoke.Inordertoallowthesmokefromtwostovestobeinhaledatthesametime,itisnecessarytoensureagenerousairinlet.
Misunderstanding2:"Thegreatertheairvolume,thebetterthesmokingeffect".Theeffectofsmokingcannotbejudgedbytheairvolumealone.Excessiveairvolumecannotonlysuckthefume,butalsodisturbtheflowdirectionofthefumegas."EleventhFive-YearProject"researchshowsthatthemostsuitableairvolumeforapublicflueis15m3/min,notthebiggerthebetter.Moreover,theoreticallyspeaking,theairvolumeandnoiseofthefanareanaturalcontradiction.Iftheairvolumeistoolarge,itwillcauseunbearablenoise.
Misunderstanding3:"Itiscleanerifyouhaveoilnets".Side-suckingclose-rangesmokingnaturallycomesintocontactwithoilfumeearlier.Whengaseousoilcomesintocontactwiththeoilnet,itwillcondenseandbecomeliquid.Whentheoildropletscondensetoacertaindegree,thesmokecannolongerpass.Therefore,inordertochangethistroublewithoilnets,technicalexpertshavedevelopedanoil-freenetdesignwith"tripleoilfumeseparationtechnology",whichfiltersoilfumethroughmulti-layertechnologyandbecomesamodernsidesuctionmachine.Itisatechnologicalinnovationthatsolvescustomers.Theproblemofcleaningtheoilnet.
Misunderstanding4:"Thesidesuctionmachinewithoutdisassemblyandwashingcanreallybedisassemblyandwashingfree".Therealoilfumeseparationreliesonthecentrifugalforcegeneratedbythehigh-speedrotationoftheimpellertoseparatetheoilfume.Themarketclaimsthatitcancompletelyfiltertheoilfumethroughthefilter,butthefilterisonlyforthefirstoilfumeseparation.Theexpansionofthefunctionofafilternetbecomesanetthatcanfilterouttheoilfumeofallhouseholds.Itisobviouslyimpossible.Onlywithabetterfanoil-proofcoatingandgooddailymaintenancecantherangehoodoperateefficientlyinthelongterm.
Misunderstanding5:Panelmaterialisnotimportant
Asforpanelmaterial,promotersmay"deliberatelyforget"nottomentionit,ordirectlyspeakatermforacertainalloytodeceiveconsumers.Infact,itisverysimpletoinspectthematerial.ThebestdomesticmaterialisgenerallymadeofimportedM-Crstainlesssteel,whichlooksfineandtextured.Thismaterialisresistanttooxidation,corrosionandwillbecomebrighterandbrighter.Todistinguishthedifferencebetweenthismaterialandthegeneralalloymaterial,youonlyneedtotestitdirectlywithamagnet.Ifitcanbeattracted,itmustbeageneralinferioralloyoriron,andtheonethatcannotbeattractedismadeofstainlesssteel.ThereisalsoapanelthatisprotectedbyaTefloncoating,whichhastheadvantagesofnon-stickoil,easytoclean,andcorrosionresistant.Itisanotherexcellentpanelmaterialbesidesstainlesssteel.
Misunderstanding6:Theinnercavitydesignisnotimportant
Theimportanceoftheinnercavitydesignoftherangehoodcannotbeignored.Seam,easytoclean,andatthesametime,itmustbeabletoprotectthecircuit,sothatvariouscircuitscanworknormallyunderthestrongcorrosiveconditionofoilfume,andwillnotbecorroded.Theseamlessdesigninthecavityisnotonlyseamlessinthecavity,butalsoonthesmallsurfaceparalleltothecooktop.Atthesametime,thejointbetweentheoilnetandthecavityshouldalsobe"invisibleseamless"."Forexample,itisnecessarytosetupanoil-proofwall,etc.,sothatitreallydoesnotleavecleandeadcorners.
Identificationstandard
Sincethe21stcentury,therehavebeenmorethan400cookerhoodmanufacturersnationwide,someofwhicharesmallworkshop-stylemanufacturingplantscomposedofmorethanadozenpeople,andsomeproductshavenotpassedthroughthecountry.Authoritativedepartmentcertification.Therefore,consumersshouldchoosethetechnicalindicatorsthatmeetthenationalstandardswhenchoosing.Besuretochooseproductswithguaranteedproductquality.
Assessingthequalityofrangehoodsshouldhavethefollowingfourstandards:
1.Canthekitchenfumebecompletelycleaned?
2.Cantheoilberemoved?Separatefromthesmoke,sothatthefancanbeeffectivelyprotected
3.Isiteasyandconvenienttoclean
4.Whetheritsaveselectricityandmaintainssuperpowerforalongtime
UsetheaboveFourstandardstoexaminethetraditionalrangehoodwillnaturallyknowthereasonswhytherangehoodindustryhasbeenunsatisfactoryforsomanyyears.
Commonmodels
Traditional
Traditionalrangehoodsaredesignedwithaceiling,andtheinstallationheightisgenerallyabout700mm,whilethepowerofmainstreamfansismostlyItisbetween200~250W,soitseffectivesuctionradiusisabout400mm,sothepotsurfaceiscompletelyoutsidethesuctionrangeofitsfan,sothattheoilysmokewillnaturallyspreadaroundwhenitisgeneratedfromthepotsurface.Topumpcleanly,fromtheprincipleofaerodynamics,itonlyhastolowertheheightandlettheeffectiveradiusofsuctioncoverthesurfaceofthepot.Naturally,99%ofthesuctioneffectcanbeachieved,butitisobviouslyimpossible.Aftercooking,itisnotdifficulttofindaftercarefulanalysisthatthiskindofceilingdesignistherootcauseofthetraditionalsmokemachinenotbeingclean.
Traditionalrangehoodsusetheoilfiltermethodintermsofoilfumefiltration.Thereareonelayer,twolayersormultiplelayers,andthefilterholesaresquare,diamond,round,etc.Thepurposeistoblocktheoilfumethroughthefilter,butfromtheuseofsomanyyears,theeffectofthissolutionisverypoor.Evenwhenthefilterisassmallas0.01squarecentimeters,37%oftheoilysmokecannotbeblocked.Mosthoodsonthemarkethavefiltermeshholesofabout0.04squarecentimeters,sotheyarealmostdirectlydischarged,andtheresultistopollutetheinnerwallofthehood.Alargeamountofunevenoilaccumulationinthefanimpellercausesthefantoloseitsdynamicbalance.Therefore,thesuctioneffectisnaturallygettingworseandthemechanicalnoiseisgettinglouderandlouder.Inshort,thelackofeffectivepurificationfunctionistherapiddeclineoftraditionalhoodefficiency.Third:Duetothedefectsofitsceilingdesignandthelackofeffectivepurificationmethods,inordertoensuretheshort-termsuctioneffect,itspowerisgenerallyhigh(mainstreammodelsareallBetween200W~250W),obviouslyverypower-consuming.
Becausethereisnoeffectivepurificationmethod,alargeamountofoilaccumulatesinthefanandthemachinecavity,whichisverydifficulttoclean.Itusuallyrequiresprofessionalstocompleteit.Sometimestheeffectaftercleaningisworse,time-consumingandlaborious.
Withdrawaltype
Howtouse:Insertthepowerplugintoathree-corepowersocketwithagroundingdevice.
(1)Intheshutdownstate,pressthe"strong"and"weak"keystostartthehood,andruninstrongwind/weakwind.The"strong"and"weak"keyshaveinterlockingfunctions.
(2)The"light"keyisusedtoindividuallycontrolthelightinglamp,pressthelighttoturnon,andpressitagaintoturnitoff.
(3)Inthepower-onstate,pressthe"off"keytostopthehoodintherunningstate.
Notes:
(1)Thegasdischargedfromthecookerhoodshouldnotbedischargedtotheexhaustgasorotherfuelsmoke.Inthehotflue,topreventtheoccurrenceoffire.
(2)Therangehoodisusedwhenthestoveconsumesgasorotherfuel,andtheroommustbewellventilated.
(3)Itisforbiddentoburntherangehooddirectlybythefire.
(4)Areliablegroundedpowersocketmustbeused.
(5)Ifthepowercordisdamaged,itmustbereplacedwithaspecialcordoraspecialcomponentpurchasedfromitsmanufacturerormaintenancedepartment.
(6)Ifyoudon’tcleanitinaccordancewiththeinstructions,thecookerhoodmaycatchfire.
(7)Whenreplacingthebulbs,pleaseunplugthepowerfirst.Thepowerofeachbulbisnotmorethan20W.
(8)Whencleaning,pleasewearrubberglovestopreventmetalpartsfromhurtingpeople.Theremovedpartsshouldbehandledwithcaretoavoiddeformation.
(9)Whencleaningthewindwheel,becarefulnottocollidewiththedeformationormovethecounterweightoftheblade,otherwiseitwillcausethevibrationofthewholemachineandincreasethenoise.
(10)Pleaseunplugthepowercordifitisnotusedforalongtime.
Precautions
Whencooking,manyusersturnofftherangehoodafteronlyafewminutesofcooking,whichdoesnotplayitsrole.Thecorrectwaytouseitisaslongasthecookingisstarted.Itshouldbeturnedonandcanbeturnedoffuntil5-6minuteshavepassedaftertheentirecooking.Here,becauseofnaturalgasorliquefiedpetroleumgas,whentherangehoodisdisabled,onlyafewminutesofburningnitrogencompoundscanexceedthestandardby5times,andcarbonmonoxidegascanexceedthestandardbymorethan65times,sointheprocessofcookingandcooking,Therangehoodshouldworkthroughouttheentireprocess,andcannotbeturnedonandstoppedatalltimes.Asforthereasonwhyitisstillnecessarytoworkforafewminutesafterthecookingisover,itistoexhausttheharmfulgasremaininginthekitchentothegreatestextentandpreventitfromstayinginthekitchentopreventharmtohumanhealth.
Installationmethod
1.Installationenvironmentoftherangehood:
Toomanydoorsandwindowsshouldbeavoidedaroundtheinstallationoftherangehood,becausetherearetoomanydoorsandwindowsandairconvectionIfitistoolarge,theeffectivesuctionrangewheretheoilfumeriseslessthan250mmwillspreadalot,andtheeffectofsuckinganddischargingtheoilfumewillbeaffected.
2.Thecookerhoodshouldbeinstalleddirectlyabovethefumeandexhaustgas,andtheheightis650~700mm.
3.Installationrequirementsfortheexhaustpipeoftherangehood:
(1)Thedistancebetweentheexhaustoutletandthebodyshouldnotbetoolong,andtheturningradiusshouldbeaslargeaspossibleandturningless,otherwiseAffectthesmokeexhausteffect.
(2)Thesmokeexhaustpipeextendsoutdoorsorintoacommoncoldairflue.Theinterfaceshouldbetightandthereisnoneedtoexhausttheexhaustgasintothehotflue.
4.Thebodyofthecookerhoodiskeptlevel:Afterthebodyisinstalled,observeitslevelness.
5.Therangehoodshouldbeinstalleddirectlyabovethecenterpointofthegascooker.
6.Trynottoinstalltherangehoodneardoorsandwindowswheretheairconvectionisstrong,soasnottoaffecttheeffectoftherangehood.
7.Theairoutletpipeshouldnotbetoolong,itisbestnottoexceed2meters,andminimizethebending,avoidmultiple90-degreebends,otherwiseitwillaffecttheeffectofsmokeabsorption.
Someelectricalappliancessuchasrangehoods,TVs,etc.,ifinstalledimproperly,willindeedcausesafetyhazardsinadditiontoleakage.Standardinstallationisthemostimportantthing.Forthesakeofsafety,hurryupandcheckitroombyroom.
Thehoodmustbedirectlyfixedtothewall.Thenormalinstallationmethodoftherangehoodistofixtherangehoodhorizontallyontheconcreteorbrickwallwithexpansionbolts.Itcannotbedirectlyfixedtoanon-load-bearingwall.Onthewall,itcan'tbefixedonthecabinet.Therangehoodthathasbeenfixedtothecabinetmustberemovedandreinstalled.Inaddition,wheninstallingtheexpansionpipe,thepipeholemustbecloselymatchedwiththedrilling.Itisstrictlyforbiddentodrilltoolargeanexpansionpipetoloosenandcausethemachinetofall;whentherangehoodneedstobeinstalledseparately,thestopplateintheaccessorymustbeinstalledinplace.Preventthemachinefromfallingoff.
Aplasticbagisplacedunderneathwithtapetoholdtheparticlesthathitthewalltopreventitfromfallingoffandgettingonthecountertop.
1.Drill3-10holesinthewallwithadepthof50-55mm,bury10plasticexpansiontubes,andthenfastenthehook(accessory)withwoodscrews.
2.Insertthesmokeexhausthoseintothecheckvalveassemblyandfastenitwithself-tappingscrews.
3.Afterthewholemachineislifted,thetworectangularholesontherearwallarealignedwiththehooksandhung,andthenthesmokeexhausthoseisledoutoftheroom.Notethattheoutletofthesmokeexhausthoseshouldbelowerthantheindoor.
4.InstallanM5x25screwinthescrewholeinthemiddleofthehangingplateandtightenittopreventtherangehoodfromslippingoff.Theinstallationisnowcomplete.
Cleaningmethod
Disassemblyandcleaning
Body
Beforethenewrangehoodboughtbackisactivated,Sprinkleathinlayerofsoappowderonthetwooilstorageboxes,andthenpouraboutone-thirdofthewater,sothattherecoveredoilwillfloatonthewaterinsteadofcondensingonthewallsoftheboxes.,Waituntilthewasteoilisalmostfull,andthendothesameafterdumpingit.
Beforestartingtherangehood,youcanuseaslightlydampclothdippedindishwashingdetergent(donotaddwater)towipethebody,andwipethefanbladesasmuchaspossible,Afterthenaturaldrying,the"detergentcoating"topreventoilfumefromstickingiscompleted.Afterawhile,ifthebodyfeelsstickytothetouch,itistimetocleanthebody.Sincetherehasbeena"protectivecoating"betweentheoilandthefuselage,ifyouwashthefuselagedirectlywithhotwaterat80°C,theoilwillbewashedofffirst.Afterthecleaningworkisover,applythedetergentonthefuselageagain,applyalittlethicker,andcontrolthehumidityatthe'non-drip',andthencovertheswitchwithplasticwrap.
Oilstoragebox
Thewasteoilintheoilstorageboxoftherangehoodisfilteredoutandthetoplayeriscleaned.The"bestoilremover"forhoodstains.Thespecificmethodistousearagortorntoweltodipthewasteoilontheoilyarea,soakitforabouthalfaminute,wipeitoffwithacloth,andthenwipeitwithacleanscouringpad.Atthistime,thebodyoftherangehoodisbrightenough."Lookinthemirror".
Inadditiontothe“waterstoragecleaningmethod”mentionedabove,putalayerofplasticwrapinsidetheboxorputasmallplasticbagoforangesontheinnerwalloftheoilstoragebox.Makesurethattheplasticfilmorplasticbagcompletelycoverstheinnersurfaceoftheboxand"canhold"theadsorbedwasteoil.Then,afteracertainperiodoftime,theoilstorageboxisbasicallyclean.
Theoilnet
Theoilnetthatprotectsthefanbladescanbeslowlyremovedwithascrewdriver,sprayedwith'oilfumeclean',andplacedinaplasticbag.Leaveitfor15minutes,takeitout,pour80°Chotwaterintothebasinandwashitcarefullywitharag.Ifthegreaseonthegreasenetisverythick,youcanalsouseathinbamboosheettogentlyscrapeoffsomeofthegreasebeforecleaning.
Fanblades
Doesthefanbladeshavetobecleanedwith'oilfumecleaning'?uncertain.Althoughtheoilfumefilterhasastrongsaponificationandemulsificationabilityontheoilonthefuselageandfanblades,aftercoveringthetablebelowthefumehoodwithnewspaper,spraythefumesonthefuselageandfanblades,andturnitoninafewminutes.Therangehoodusesthecentrifugalforceofthefantoremovetheoilfumeandthedissolvedoil,andthenwipeitwithawetpapertowel.Thefuselageandfanbladescanbecleaned.However,thefumefilterisachemicalproductafterall.Theskinandrespiratorytractmucosahaveacertainstimulatingeffect,soitisbettertouseless.Herearefourkindsoffandegreasingmethodsthatcanbeusedto'freeuseofoilyfume',youcantrythem:
Maintenanceandinstallationofrangehood(3photos)
1,washSoakingmethodofdetergentandvinegar.Carefullyremovethefanbladesandsoaktheminapotofhotwatermixedwith2mlofdetergentand50mlofvinegar.Aftersoakingforabout15minutes,wipethemwithacleancloth.Thefuselageoftherangehoodisalsocleanedwiththissolution.Itisnecessarytokeepthehumidityofthesolutionatabout60℃forgooddetergency.Thisself-preparedcleaningsolutionhasbeenprovedtobenon-irritatingtothehandskinandintraocularmucousmembrane,non-corrosivetotherangehood,andthesurfacestillmaintainstheoriginallusteraftercleaning.2.Pressurecookersteamflushingmethod.Puthalfapotofcoldwaterinthepressurecookerandboilit.Whenthesteamiscontinuouslydischarged,removethepressurelimitingvalve,turnontherangehoodandaimthesteamwatercolumnattherotatingfanblades.Asthehigh-hotwatersteamcontinuouslywashesthefanblades,theoilysewagewillbelost.Willflowintothewasteoilboxfollowingtheoildraingroove.
3.Afterdryingthebrushedfanblades,applyalayerofofficeglue.Afterafewmonthsofuse,tearofftheoilonthefanbladesintopieces,andtheoilstainsareallstainedonthegluelayer.,Convenientandclean.
4.Firstspreadthenewspaperonthestove,turnontheswitchoftherangehoodto"preheat"thefanbladesfortwominutes,spraydetergentonthefanoftherangehood,turnofftherangehood,andkeepquiet.Letitstandforthreeminutes,andthensprayhotwaterat60°Cintothefanoftherangehood,andthenturnontheswitchtoallowthedissolvedoiltodripintotheoilstoragebox.
Othermethods
Mostpeopleareaccustomedtodisassemblingandcleaningthecookerhood,whichwastestimeandeasilydamagestheparts.Hereisacleaningmethodthatnoneedtodismantlethemachine,andisverytime-savingandlabor-saving.
1.Takeaplasticbottle(allkindsofbeveragebottlesthatcanbesquashedbyhand),pokemorethan10smallholesinthecoverwithasewingneedle,thenfillinanappropriateamountofdetergent,andthenfillitwithwarmwaterandshakeitevenly.
2.Starttherangehood,andspraythecleaningfluidwithaplasticbottlefullofcleaningessencetotheparttobewashed.Atthistime,oilanddirtywatercanbeseenflowingintotheoilstoragehopper,andthenpouritwhenitisfull.
3.Afterthecleaningliquidinthebottleisusedup,continuetoprepareandrepeatthecleaning.Untiltheoutflowofdirtywaterbecomesclear,dependingonthedegreeoffouling,itcanberinsedoffafter3timesofcleaning.
4.Ifthereisanetcoveroutsidethefanblade,itisadvisabletoremovethenetcoverfirsttoenhancethewashingeffect.
5.Wipearoundthesuctionport,thesurfaceofthecabinetandthelampshadewitharag.
Tipsforcleaning
Methodstopreventoilpollutioninkitchengaspipelines:
Buildinguserswhousepipelinegaswillencounterthissituation:stickingtothegaspipelineTheoilstainisthickanddifficulttoremove.Nowintroduceapreventivemethod:firstthoroughlyremovetheoilfromthegaspipe,andthenuseastripofpaper(5cm)cutfromawastecalendartowrapitaroundthegaspipe.Thisisnotonlybeautiful,butalsoDirtynotesarealsoveryconvenienttoexchange.
Howtoremoveoilfromakitchenrangehood:
Theoilbasinshouldbecleanedaftertherangehoodisused,andtheplasticbagfortheorangecanbeplacedintheoilbox.Tightenthewallofthebox.Aftertheboxisfullofoil,removethebagfullofoilandreplaceitwithanewbag.Thiscannotonlysolvethetroubleofoilwashing,butalsousewasteplasticbags,savingtime.
Wasteoilintherangehoodoilboxcanbeused:
Manyhomekitchensuserangehoods,andtheoilboxisfullofwasteoilwithinafewdays.Itisthebest"greaseremovalagent"toremovestainsonkitchenwindowlattices,ventilationfansandrangehoods.Specificmethod:Diparagortorntowelinthewasteoilandapplyittotheoilyarea,thenwipeofftheoilydirtwithacloth,andthenwipethelightupwithacleancloth.Objectswiththickoilstainscanbesoakedinwasteoilforafewseconds,andwipeoffwithaclothaftertheoilstainshavesoftened.(Especiallythickobjectsneedtobescrapedwithathinbambooboard.)
IntherangehoodoilboxTheoilisavailable.Doorsandwindowsareconnectedwithironhinges,whichareoftenwornandclosed.Smallwoodenstickscanbeusedtospotwasteoilonthehingeshaft,whichnotonlyprolongsthelifeofthehinge,butalsoreducesnoise.
Therearetrickstocleaningtheoilcollectionboxoftherangehood:
Aftertheoilcollectionboxoftherangehoodisfullofoil,thegreaseadheringtothebottomandthewallsoftheboxisdifficulttoremoveIfyoucleanthebottomoftheboxeverytime,sprinkleathinlayerofdetergentonthebottomofthebox,addalittlewater,theoilislighterthanwater,andwhenthereisoilaccumulation,itwillfloatonthewater.Pourouttheoilintheboxduringcleaning.Afterthat,thebottomoftheboxwillnothavegreaseadhesion,anditiseasytocleanwithdetergent.
Howtocleanthetilesaroundthegasstove:
Thewhitetilesaroundthegasstoveareeasytobecontaminatedbyoilsplashandsmoke,andarenoteasytoclean.Accordingtoamethodfromafriend,youcanremovetheunusedcalendarThecoloredplasticfilmiscoatedwithgoldfishwashingspiritandpastedonthetiles,whichcansavetimeforwiping,andcanbechangedeveryfewmonthsaccordingtothepatternyoulike.