《制冷专业英语》课件-Unit 18 Duct Cleaning

SectionFive

Unit16:HowtoCleaningRoomAirConditionerUnit17:RefrigerantLeakDetectionUnit18:DuctCleaningUnit18:DuctCleaningNewWords&ExpressionsTextNotestothe

TextExerciseNewWords&Expressions

记录;登记;注册登记(表),计数器；记录

contaminatedadj.被污染的congestedadj.拥挤的

；充血的

spewedout喷出mustyadj.

发霉的,乏味的staleadj.vi.不新鲜的;味道变坏的

变陈旧;走味

nasalcongestion鼻塞restorevt.&vi.

归还;交还

；修复;重建

registersvt.&vi.n.

NewWords&Expressions露点温度

grillesanddiffusers烤架，柔光镜condensatedrainpans冷凝排水锅dislodgevt.把…赶出,从…逐出;把…移去vacuum

cleaner.真空吸尘器sealantsn.

密封剂remoteadj.n.

vt.微小的，远程的；

遥控器dewpointtemperatureText

风管系统是一个住所的呼吸系统。当风管变脏或堵塞时，就应该清洗，这样才能让风管呼吸顺畅和高效。当空调打开时，污染物就会被排出并在屋中循环，并危及到居民的健康。开空调时，如果有人感觉到发霉的或污浊的气味或早晚感觉到头疼、鼻塞或其他不舒服，这说明空调的风管该清洗了。Airductsystemistherespiratorysystemofyourhome.Whenitbecomescontaminatedandcongested,itshouldbecleanedsoitcan"breathe"normallyandefficiently.Whenairconditioneristurnedon,contaminantsarespewedoutandcirculatedthroughoutyourhomeandaffectthehealthandcomfortofresidents.Anyonemayfeel"musty"or"stale"odorsorsufferfromheadaches,nasalcongestion,orothertroubleproblemsatnightorinthemorningwhenairconditionerruns,whichshowductofairconditionerneedbecleaned.1

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显然，风管清洗有助于室内干净和健康受益。还有助于恢复供暖空调系统的能力，运行时间缩短，供暖和制冷费用降低。如果决定给空调系统做清洁，重要的是要确保系统的所有部件都清洁彻底并保质保量。风管清洁包括送风管和回风管、通风调节设备、格栅口、扩散器、热交换器、冷凝水积水盘、风机马达和空气处理器等。Obvious,ductcleaningcanhelpmaintainacleanerhomeandthesufficienthealthbenefits.ItalsohelpstorestoreHVACsystemcapacityandlessenrunningtime,resultinginlowerheatingandcoolingcost.Ifyoudecidetohaveyourheatingandcoolingsystemcleaned,itisimportanttomakesuretocleanallcomponentsofthesystemandisqualifiedtodoso.2Ductcleaninggenerallyincludethesupplyandreturnairductsandregisters,grillesanddiffusers,heatexchangersheatingandcoolingcoils,condensatedrainpans,fanmotor,andtheairhandlingunithousing,etc.Text

虽然工业协会对风管清洗有相关标准，但是方法还是有很多种的。传统的方法都是服务人员使用专门的工具去除灰尘和杂物，然后再用高能真空吸尘器吹扫。另外，有一些服务人员还建议使用化学处理方法（密封胶或胶性密封剂）密封或涂抹风管内表面和设备外壳，因为他们认为这样能控制微生物生长并阻止灰尘微粒和纤维等进入风管。Methodsofductcleaningvary,althoughstandardshavebeenestablishedbyindustryassociationsconcernedwithairductcleaning.Typically,aserviceproviderwillusespecializedtoolstodislodgedirtandotherdebrisinducts,thenvacuumthemoutwithahigh-poweredvacuum

cleaner.Moreover,someserviceprovidersmayalsosuggestapplyingchemicaltreatments(sealantsorotherencapsulates)toencapsulateorcovertheinsidesurfacesoftheairductsandequipmenthousingsbecausetheybelieveitwillcontrolmoldgrowthorpreventthereleaseofdirtparticlesorfibersfromducts.3

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验证空调系统清洁洁净度的最好方法是严格的视觉检查。有的服务人员会用远程拍摄来记录分管内部清洗前后的情况。系统所有的部分都要做可视检查。另外，风管中不能潮湿。如果存在潮湿，潜在的微生物（比如霉菌）就会迅速滋生，并进入到房间区域。控制潮湿是防止风管中微生物生长的最有效的方法。Athoroughvisualinspectionisthebestwaytoverifythecleanlinessofyourheatingandcoolingsystem.Someserviceprovidersuseremotephotographytodocumentconditionsinsideductscleanedbeforeandlater.Allportionsofthesystemshouldbevisiblyclean.4

Inaddition,moistureshouldnotbepresentinducts.Ifmoistureispresent,thepotentialformicrobiologicalgrowth(e.g.,mold)isincreasedandsporesfromsuchgrowthmaybereleasedintothehome'slivingspace.Controllingmoistureisthemosteffectivewaytopreventbiologicalgrowthinairducts.Text

潮湿会经过漏洞或系统安装和维护不合适进入风管系统。研究表明，空调的冷凝水是系统潮湿污染的一个主要来源（当表面温度低于环境空气的露点温度时）。冷凝水和相对湿度大都是促进风管中霉菌生长的重要因素。Moisturecanentertheductsystemthroughleaksorifthesystemhasbeenimproperlyinstalledorserviced.Researchsuggeststhatcondensation(whichoccurswhenasurfacetemperatureislowerthanthedewpointtemperatureofthesurroundingair)onornearcoolingcoilsofairconditioningunitsisamajorfactorinmoisturecontaminationofthesystem.Thepresenceofcondensationorhighrelative

humidityisanimportantindicatorofthepotentialformoldgrowthonanytypeofduct.NotestotheTextNotestotheText1.Anyonemayfeel"musty"or"stale"odorsorsufferfromheadaches,nasalcongestion,orothertroubleproblemsatnightorinthemorningwhenairconditionerruns,whichshowductofairconditionerneedbecleaned.Which引导主语从句，表示which前面的部分。翻译时，把句子分成两个部分，which前面翻译为一句话，后面的内容which翻译为“这一点”。NotestotheText前半句是if引导的条件状语从句，后半句是不定式结构做主语，it代表后面to引导的不定式结构，属于主语后置，翻译为确保系统的所有部件都干净并保质保量完成这很重要。2.Ifyoudecidetohaveyourheatingandcoolingsystemcleaned,itisimportanttomakesuretocleanallcomponentsofthesystemandisqualifiedtodoso.NotestotheTextBecause引导原因状语从句，it代表because前面的部分。Prevent……from……,表示阻止……不受……影响，例如：Asyoureachanotheroftheseanniversarylandmarkstoday,permitmetocongratulateyouonhavingtravelledthisfarinsafety.当您今日人生又一里程碑届满周年之际，请允许我祝愿您鹏程万里，平安顺利。3.Moreover,someserviceprovidersmayalsosuggestapplyingchemicaltreatments(sealantsorotherencapsulate)toencapsulateorcovertheinsidesurfacesoftheairductsandequipmenthousings，becausetheybelieveitwillcontrolmoldgrowthorpreventthereleaseofdirtparticlesorfibersfromducts.NotestotheTextremotephotography表示远程拍摄。4.Someserviceprovidersuseremotephotographytodocumentconditionsinsideductscleanedbeforeandlate