铜管在供暖系统中的应用(application of copper tube in heating system)

铜管在供暖系统中的应用(application of copper tube in heating system)

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时间:2018-07-13

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1、铜管在供暖系统中的应用(Applicationofcoppertubeinheatingsystem)ApplicationofcoppertubeinheatingsystemAbstract:inordertoimprovethequalityofbuilding,thebuildingwatersupplysystemhasbeguntousecopperpipe.Inthispaper,theadvantagesofcopperpipelineusedinbuildingwatersupplyandheatingengineeringareintrodu

2、cedThecorrosionresistanceandotherpropertiesareanalyzed,andtheproblemsinthedesignandconstructionofthecopperpipearepointedout.Accordingtomarketresearchresults,combinedwithengineeringapplicationexamples,variouskindsofpipematerialsareanalyzedTheapplicationcostinengineeringisanalyzedandco

3、mpared.ItissuggestedthatcopperpipeswithgoodperformancepriceratioshouldbeadoptedinheatingengineeringCharacteristicanalysisofcoppertubeusedinheatingsystemCorrosionresistanceofacoppertubeOxidationcorrosionThepreciousmetals,suchasgold,silverandcopper,belongtotheIBfamilyofperiodictableofc

4、hemicalelements.Thecommoncharacteristicsoftheelementsarechemicalstability.Copperatroomtemperature,goodoxidationresistance,theatmospherecontainsmanykindsofgases,whicharemoreoxygen,watervapor,CO2,SO2andsoon.Inthiscondition,thesurfaceofcopperwillslowlyformalayerofcopperoxideorcoppercarb

5、onateandalkalicoppersulfatewithverythinbody,knownasp..Thetissueofthepatinaitselfiscompactandtightlybondedwiththecoppermatrix,thusformingaprotectivefilmtopreventthecorrosionofthebasemetal.Therefore,copperisnotdamagedbycorrosionintheatmosphereforalongtime.AcidandalkalicorrosionThereare

6、twokindsofcorrosionofmetalsinwater:electrochemicalcorrosionandchemicalcorrosion.Electrochemistryisthemainmethod,andthetwoareinterrelated.Electrochemicalcorrosionisthecorrosionproducedbytheelectronicflowcausedbythedifferenceofelectrodepotential.Theelectrodepotentialinwaterisgeneratedb

7、ycomparingthepotentialofhydrogeniontozero.Theelectrodepotentialofcopperinwaterispositive,andelectronsincopperatomsdonotflowtohydrogenions.Therefore,copperatomsinwaterdonotexchangeelectronswithionizedhydrogenionsinwater,andthenreactwithhydrogentoproducecorrosion.Itispossibleforcoppert

8、oundergohydr

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