热能与动力工程专业毕业论文外文资料及译文

热能与动力工程专业毕业论文外文资料及译文

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时间:2019-03-30

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1、WaterTreatmentSystem1,theautomaticwatersoftenerworks:Thehardnessofthewatermainbyoneofthecations:calcium(Ca2+),magnesium(Mg2+)ioncomposition.Ionexchangemethodistheuseofonexchangeresinsintheexchangeablecations(egNa,H),thewatercontainsCa,MgexchangeoutofthewaterdecreasedCa,

2、Mgcontent,aprocessknownaswatersoftening,theuseofdevicecalledionexchange,alsoknownaswatersofteners.Aswiththehardnessofrawwaterthroughtheexchangerresinlayer,thewaterofcalciumandmagnesiumionsadsorbedbytheresin,whilethereleaseofsodiumions,sothatthewatercomesoutoftheswitchis

3、softenedtoremovehardnessions,whentheresinadsorptionofcalciumandmagnesiumionsuptoacertaindegreeofsaturation,thewaterhardnessincreases,thenwatersoftenerwillbeautomaticallycarriedoutaccordingtoapredeterminedfailureofregenerationoftheresin,theuseofhigherconcentrationsofsodi

4、umchloridesolution(saltwater)throughtheresin,thefailurerestoretheresintothesodiumresin.2,themainfeaturesofautomaticsoftener:1)Thehighdegreeofautomation,waterconditions,longservicelife.Fullautomatic,justonaregularbasiswithsalt,withouthumanintervention.2)highefficiency,lo

5、wenergyconsumption,lowoperatingcosts.Theoveralldesignofthewatersoftenerisreasonable,theexchangecapacityoftheresingivenfullplay,theenergyconsumptionofthedeviceitselfwassignificantlylowerthanthegeneralindexsoftenedwaterequipment,automaticcontroldevicesdonotneedfull-timeop

6、erators,whichgavetheuserwithtomanyofthefacilities,andproducegoodeconomicreturns.3)equipment,compactstructure,smallfootprint,nospecialequipmentfoundation,placedontheflatconcretefloorcanbe.4)easytouse,installation,commissioning,operationissimple,stableperformancecontrolun

7、it,abletoremovetheuser'sworries.5)corrosionresistance,anti-pollution,lead-freebrasscontrolvalve,linedwiththeexchangeofnon-toxicPEplasticcans,PEplasticmaterialofthesaltboxes,whicharesufficienttoensurethattheequipmentcorrosion,anti-pollution,non-toxic,tasteless,excellents

8、oundperformance.3,automaticsoftenerrangeofapplications:Industrialboilers,centralairconditioning,heatexchangers

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