Izinto eziluncedo kwiMicrochannel yokuTshintsha ubushushu (MCHEs) xa kuthelekiswa neTraditional Heat Exchangers (iCopper Tube Aluminium Fin yokuTshintsha ubushushu)
UFanelo oluPhezulu lokuTshintshela ubushushu
Ii-MCHEs zine-ultra-iitshaneli zokuqukuqela ezincinci zangaphakathi (ngokuqhelekileyo yi-0.1–2 mm ububanzi) kunye nommandla ophezulu{3}}ukuya{4}}nomlinganiselo wevolumu. Olu yilo lukhulisa uqhagamshelwano phakathi kwendawo yokudlulisa ubushushu (njengeefriji ezifana ne-R134a okanye i-R404A) kunye nomphezulu wokutshintsha ubushushu, okwenza ukuba ukuhanjiswa kobushushu kunyuke ngama-42% okanye ngaphezulu xa kuthelekiswa nemifuziselo yobhedu yemveli{9}} Ukongezwa kwengxolo yolwelo kwimijelo emincinci icutha ngakumbi ukuxhathisa ubushushu, yenze ukuba ii-MCHEs zilungele amandla{11}}imeko zogcino ezifana nezikhenkcisi zorhwebo kunye neekhabhathi zokubonisa.
Ubungakanani beCompact kunye noKhaphukhaphu
Yakhiwe ngazo zonke-izixhobo ze-aluminiyam kunye ne-fin edibeneyo-isakhiwo setyhubhu ecaba (nge-welding engenamthungo), ii-MCHEs zixinene ngakumbi kwaye zikhaphukhaphu. Ngokwe-avareji, bathatha isithuba esingaphantsi kwama-32–51% kwaye banobunzima obungama-42–61% ngaphantsi kobhedu lwemveli{7} olusekwe kwizitshintshi zobushushu ezinomthamo ofanayo wokudlulisa ubushushu. Olu ncedo lubalulekile kwisithuba{9}}usetyenziso olubambekayo, olufana nemoto yokupholisa umoya, iiyunithi zesikhenkcezisi esixineneyo, okanye iinkqubo zekhaya zeHVAC.
Izinto eziphantsi kunye neeNdleko zokuSebenza
I-Aluminiyam, eyona nto iphambili ye-MCHEs, ixabisa ngaphezulu -isebenza kakuhle kunobhedu (inxalenye ephambili yabatshintshi bemveli), ukunciphisa iindleko zemathiriyeli nge-20-30%. Ukongeza, ii-MCHEs zifuna intlawulo encinci yefriji (ukuya kuthi ga kwi-50-70% ngaphantsi) ngenxa yomthamo omncinci wangaphakathi, ukwehlisa iindleko zokusebenza zexesha elide kunye nokulungelelaniswa nemithetho yendalo engqongileyo (umzekelo, F{9}}imimiselo yerhasi) ethintela ukusetyenziswa ngokugqithisileyo kwefriji.
Ukuthembakala okongeziweyo koLwakhiwo
Iinkqubo zokwenziwa ezikwinqanaba eliphezulu (umzekelo, ukuqhotyoshelwa kwe-vacuum yazo zonke{2}}izixhobo ze-aluminiyam) zenza iqhina elingenamthungo phakathi kwamaphiko kunye neetyhubhu ezisicaba kwii-MCHEs, kususwa izikhewu ezibangela ukuxhathisa kobushushu okanye ukuvuza kwefriji kwityhubhu yemveli{3}}i-fin exchangers. Esi sakhiwo singenamthungo sikwaphucula ukuxhathisa ukungcangcazela kunye nokuhamba ngebhayisikile eshushu, ukwandisa ubomi benkonzo kwiindawo eziguquguqukayo (ezifana neelori zefriji ezihambayo).
Ububi beMicrochannel yokuTshintsha ubushushu (MCHEs) xa kuthelekiswa nabaTshintshisi boBubushushu beSintu
Ukuchasana nokuMhlwa okuNgaphantsi
Ialuminiyam imathiriyeli, ngelixa ikhaphukhaphu, inoxhathiso oluphantsi lokutya kunobhedu{0}}ingakumbi kwiindawo ezirhabaxa (umzekelo, iisetingi zaselwandle,{3}}indawo zokufuma eziphezulu, okanye usetyenziso olunolwelo oluneasidi/alkaline). Ngaphandle kwe-anti{5}} ezongezelelweyo zokugquma umhlwa (umzekelo, i-phenolic resin coatings), ii-MCHEs zinokuba ne-aluminiyam oxidation okanye i-pitting, efuna ukulungiswa rhoqo okanye ukutshintshwa kwiimeko ezithintekayo.
Ubunzima boLondolozo oluPhezulu kunye neendleko
Uyilo oludityanisiweyo, oludityanisiweyo lwe-MCHEs lwenza ukuba ukulungiswa kube ngumngeni. Ngokungafaniyo netyhubhu yemveli -abatshintshiselana ngee-fin (apho iityhubhu ezonakeleyo okanye amaphiko anokutshintshwa ngokwahlukeneyo), isiphene esinye kwii-microchannels ze-MCHEs zihlala zifuna ukuba kubuyiselwe iyunithi yonke. Oku kwandisa iindleko zokulungisa kunye nexesha lokuphumla, ngakumbi kwizicelo ezinkulu{3} zemizi-mveliso.
Utyalo-mali lweMveliso oluPhezulu oluPhezulu
Ii-MCHEs zifuna ubuchwephesha bokwenza obuchanekileyo (umzekelo, i-micro{2}}i-extrusion yeetyhubhu ezisicaba,{3}}i-vacuum vacuum brazing ephezulu) kunye nezixhobo ezikhethekileyo. Ngelixa iindleko zezinto eziphathekayo ziphantsi, utyalo-mali lwangaphambili kwimigca yokuvelisa i-2-3 ngokuphindwe kabini kunaleyo yokutshintsha ubushushu bendabuko. Oku kwenza ukuba ii-MCHEs zibe noqoqosho oluncinci kwimveliso yebhetshi{8}encinci okanye{9}}iiprojekthi zohlahlo lwabiwo-mali oluphantsi.
Ukusetyenziswa kobushushu obulinganiselweyo -
I-aluminium yokunyibilika kwe-aluminium (malunga ne-660 degree) kunye nokuzinza kwe-thermal kuphantsi kunobhedu (indawo yokunyibilika ~ 1085 degree). Kwimeko yobushushu obuphezulu -(umzekelo, iibhoyila zemizi-mveliso,{6}}ubushushu obuphezulu bokubuyiswa kobushushu), ii-MCHEs zinokuba namava okucutha ubume besakhiwo okanye ukusebenza kakuhle kwe-thermal, kanti ubhedu lwemveli{7}} olusekwe abatshintshiselwano lugcina ukusebenza ngcono phantsi kweemeko ezinjalo.
Uvakalelo loKhetho lweMathiriyeli
Xa ubungakanani beshaneli <0.5 mm, umehluko ekusebenzeni kokutshintshwa kobushushu phakathi kwezinto ezifana nobhedu kunye nensimbi engenasici inokufikelela kwi-20%. Imida yoyilo oluphambili kufuneka iqwalaselwe ngokubanzi kunye neemfuno zokuxhathisa ukubola.
Flow Channel Shape Gain
Izakhiwo zetshaneli eziyinkimbinkimbi (umzekelo, inyoka / i-serrated) yandisa ukusebenza kakuhle kokudluliselwa kobushushu nge-1.2 ukuya kwi-1.4 amaxesha xa kuthelekiswa neziteshi ezithe tye, kodwa kuyimfuneko ukulinganisa urhwebo{4} olusuka kwi-15% -25% yokwanda koxinzelelo.
Iifayile ezishisayo: mche micro -umphunga wetshaneli, China mche micro{1}}abavelisi betshaneli evaporator, ababoneleli, umzi-mveliso
