{"id":26712,"date":"2025-12-03T15:12:33","date_gmt":"2025-12-03T07:12:33","guid":{"rendered":"https:\/\/sinoextrud.com\/?p=26712"},"modified":"2025-12-03T15:12:33","modified_gmt":"2025-12-03T07:12:33","slug":"moznosti-vytlacovani-hliniku-pro-vymeniky-tepla","status":"publish","type":"post","link":"https:\/\/sinoextrud.com\/cs\/aluminum-extrusion-options-for-heat-exchangers\/","title":{"rendered":"Mo\u017enosti extruze hlin\u00edku pro v\u00fdm\u011bn\u00edky tepla?"},"content":{"rendered":"

\"Hlin\u00edkov\u00fd
Hlin\u00edkov\u00fd vytla\u010dovac\u00ed pr\u016fmysl<\/figcaption><\/figure>\n<\/p>\n

Kdy\u017e konstrukt\u00e9\u0159i vyb\u00edraj\u00ed d\u00edly pro v\u00fdm\u011bn\u00edky tepla, \u010dasto za\u010d\u00ednaj\u00ed se \u0161patn\u00fdm kovem. Ob\u00e1vaj\u00ed se, \u017ee by mohlo doj\u00edt k selh\u00e1n\u00ed tepeln\u00e9ho toku nebo pr\u016ftokov\u00fdch kan\u00e1l\u016f. Na\u0161t\u011bst\u00ed vytla\u010dov\u00e1n\u00ed hlin\u00edku m\u016f\u017ee mnoh\u00e9 z t\u011bchto obav rychle a efektivn\u011b vy\u0159e\u0161it.<\/p>\n

Extrudovan\u00fd hlin\u00edk nab\u00edz\u00ed konfigurovateln\u00e9 pr\u016f\u0159ezy, konzistentn\u00ed kvalitu materi\u00e1lu a zabudovan\u00e9 kan\u00e1ly - ide\u00e1ln\u00ed pro konstrukce v\u00fdm\u011bn\u00edk\u016f tepla, kter\u00e9 vy\u017eaduj\u00ed spolehliv\u00fd tepeln\u00fd tok a struktur\u00e1ln\u00ed integritu.<\/strong><\/p>\n

Prozkoum\u00e1me, na jak\u00fdch vytla\u010dovac\u00edch profilech z\u00e1le\u017e\u00ed, jak vytla\u010dov\u00e1n\u00ed pom\u00e1h\u00e1 p\u0159enosu tepla, kdy v\u00edcekan\u00e1lov\u00e9 tvary vyniknou a jak m\u016f\u017ee povrchov\u00e1 \u00faprava zv\u00fd\u0161it v\u00fdkon. <\/p>\n

Kter\u00e9 profily se nej\u010dast\u011bji pou\u017e\u00edvaj\u00ed ve v\u00fdm\u011bn\u00edc\u00edch tepla?<\/h2>\n

Kdy\u017e konstrukt\u00e9\u0159i pl\u00e1nuj\u00ed v\u00fdm\u011bn\u00edky tepla, pot\u0159ebuj\u00ed tvary, kter\u00e9 umo\u017e\u0148uj\u00ed dobr\u00e9 proud\u011bn\u00ed chladic\u00ed kapaliny nebo maximalizuj\u00ed plochu povrchu. Volba \u0161patn\u00e9ho profilu vede ke \u0161patn\u00e9mu chlazen\u00ed nebo k vysok\u00fdm n\u00e1klad\u016fm. <\/p>\n

P\u0159eva\u017euj\u00ed vytla\u010dovac\u00ed profily s v\u00edce \u017eebry, dut\u00fdmi trubkami nebo ploch\u00fdmi deskami, proto\u017ee umo\u017e\u0148uj\u00ed efektivn\u00ed proud\u011bn\u00ed kapaliny a dobrou geometrii v\u00fdm\u011bny tepla.<\/strong><\/p>\n

\"Hlin\u00edkov\u00e9
Hlin\u00edkov\u00e9 vytla\u010dovac\u00ed profily Produkty<\/figcaption><\/figure>\n<\/p>\n

B\u011b\u017en\u00e9 profily pro v\u00fdm\u011bn\u00edky tepla<\/h3>\n

Nejpou\u017e\u00edvan\u011bj\u0161\u00ed vytla\u010dovac\u00ed profily ve v\u00fdm\u011bn\u00edc\u00edch tepla se d\u011bl\u00ed na n\u011bkolik hlavn\u00edch typ\u016f:<\/p>\n

    \n
  • \u017debrovan\u00e9 desky<\/strong>: Desky s mnoha tenk\u00fdmi \u017eebry nebo h\u0159ebeny pro zv\u011bt\u0161en\u00ed plochy vystaven\u00e9 kapalin\u011b nebo vzduchu. <\/li>\n
  • Dut\u00e9 trubky \/ svazky s v\u00edce trubkami<\/strong>: Kruhov\u00e9 nebo ov\u00e1ln\u00e9 trubky, kter\u00fdmi se p\u0159iv\u00e1d\u00ed chladic\u00ed kapalina nebo chladivo. <\/li>\n
  • Profily v\u00edcekan\u00e1lov\u00fdch blok\u016f<\/strong>: Pevn\u00e9 bloky s vnit\u0159n\u00edmi kan\u00e1ly pro veden\u00ed kapaliny. <\/li>\n
  • Sendvi\u010de s plochou deskou<\/strong>: Dv\u011b desky s mezerami mezi kan\u00e1ly, n\u011bkdy sestaven\u00e9 nebo lisovan\u00e9 jako jeden kus.<\/li>\n<\/ul>\n

    Zde je tabulka shrnuj\u00edc\u00ed typick\u00e9 typy profil\u016f a jejich typick\u00e9 pou\u017eit\u00ed:<\/p>\n\n\n\n\n\n\n\n\n
    Typ profilu<\/th>\nPopis<\/th>\nTypick\u00fd p\u0159\u00edpad pou\u017eit\u00ed<\/th>\n<\/tr>\n<\/thead>\n
    \u017debrovan\u00e1 deska<\/td>\nDeska s mnoha tenk\u00fdmi \u017eebry nebo h\u0159ebeny<\/td>\nV\u00fdm\u011bn\u00edky vzduch-vzduch nebo vzduch-kapalina<\/td>\n<\/tr>\n
    Svazek dut\u00fdch trubek<\/td>\nV\u00edce paraleln\u011b b\u011b\u017e\u00edc\u00edch trubek<\/td>\nSyst\u00e9my kapalina-kapalina nebo kapalina-vzduch<\/td>\n<\/tr>\n
    V\u00edcekan\u00e1lov\u00fd blok<\/td>\nPevn\u00fd blok s vnit\u0159n\u00edmi kan\u00e1ly<\/td>\nKompaktn\u00ed kompaktn\u00ed v\u00fdm\u011bn\u00edky tepla<\/td>\n<\/tr>\n
    Sendvi\u010d s plochou deskou<\/td>\nDesky odd\u011blen\u00e9 mezerou nebo kan\u00e1ly<\/td>\nRadi\u00e1torov\u00e9 v\u00fdm\u011bn\u00edky, chladic\u00ed jednotky<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

    \u017debrovan\u00e9 desky se b\u011b\u017en\u011b pou\u017e\u00edvaj\u00ed v chladi\u010d\u00edch automobil\u016f nebo v kondenz\u00e1torech vzduchotechniky. Dut\u00e9 trubky se pou\u017e\u00edvaj\u00ed v kapalinov\u00fdch chladic\u00edch syst\u00e9mech, jako jsou pr\u016fmyslov\u00e9 chladi\u010de. V\u00edcekan\u00e1lov\u00e9 bloky se objevuj\u00ed v kompaktn\u00edch v\u00fdm\u011bn\u00edc\u00edch tepla, kde je m\u00e1lo m\u00edsta. Ploch\u00e9 desky jsou vhodn\u00e9 pro chladic\u00ed jednotky nebo jednotky voda-vzduch.<\/p>\n

    Pro profily se \u010dasto pou\u017e\u00edvaj\u00ed hlin\u00edkov\u00e9 slitiny jako 6063 nebo 6061 d\u00edky jejich vyv\u00e1\u017een\u00e9 pevnosti, obrobitelnosti a odolnosti proti korozi. Vytla\u010dov\u00e1n\u00ed umo\u017e\u0148uje v\u00fdrobc\u016fm vyr\u00e1b\u011bt dlouh\u00e9 s\u00e9rie s konzistentn\u00ed geometri\u00ed. Tato konzistence pom\u00e1h\u00e1 p\u0159i v\u00fdrob\u011b mnoha stejn\u00fdch jednotek. <\/p>\n

    <\/svg> Vytla\u010dovac\u00ed profily s \u017eebrovan\u00fdmi deskami jsou obl\u00edben\u00e9, proto\u017ee maximalizuj\u00ed plochu povrchu a zlep\u0161uj\u00ed tak \u00fa\u010dinnost v\u00fdm\u011bny tepla.<\/b>Pravda<\/span><\/p>

    Tenk\u00e1 \u017eebra zv\u011bt\u0161uj\u00ed kontaktn\u00ed plochu s kapalinou nebo vzduchem, \u010d\u00edm\u017e zvy\u0161uj\u00ed p\u0159enos tepla na objem.<\/p><\/div>
    \n

    <\/svg> Svazky dut\u00fdch trubek se v hlin\u00edkov\u00fdch v\u00fdm\u011bn\u00edc\u00edch tepla pou\u017e\u00edvaj\u00ed z\u0159\u00eddka.<\/b>False<\/span><\/p>

    Dut\u00e9 trubky jsou b\u011b\u017en\u00e9, proto\u017ee zaji\u0161\u0165uj\u00ed \u00fa\u010dinn\u00fd pr\u016ftok chladic\u00ed kapaliny a snadno se vytla\u010duj\u00ed.<\/p><\/div><\/p>\n

    Jak zvy\u0161uje vytla\u010dov\u00e1n\u00ed tepelnou vodivost?<\/h2>\n

    N\u011bkte\u0159\u00ed se ob\u00e1vaj\u00ed, \u017ee vytla\u010dov\u00e1n\u00ed nijak neovliv\u0148uje p\u0159enos tepla. Mysl\u00ed si, \u017ee z\u00e1le\u017e\u00ed pouze na typu materi\u00e1lu. Ve skute\u010dnosti vytla\u010dov\u00e1n\u00ed pom\u00e1h\u00e1 v\u00edce, ne\u017e o\u010dek\u00e1vaj\u00ed. <\/p>\n

    Vytla\u010dov\u00e1n\u00ed zaji\u0161\u0165uje rovnom\u011brnou mikrostrukturu hlin\u00edku a souvisl\u00e9 dr\u00e1hy kovu, kter\u00e9 podporuj\u00ed efektivn\u00ed veden\u00ed a konzistentn\u00ed tok tepla, co\u017e je nezbytn\u00e9 pro spolehliv\u00fd v\u00fdkon v\u00fdm\u011bn\u00edku tepla.<\/strong><\/p>\n

    \"Hlin\u00edkov\u00e9
    Hlin\u00edkov\u00e9 profily pro st\u0159e\u0161n\u00ed nosi\u010de z hlin\u00edku<\/figcaption><\/figure>\n<\/p>\n

    Jednotn\u00e1 kovov\u00e1 konstrukce podporuje tepeln\u00fd tok<\/h3>\n

    P\u0159i vytla\u010dov\u00e1n\u00ed hlin\u00edku doch\u00e1z\u00ed k proud\u011bn\u00ed kovu pod tlakem a za tepla. Toto proud\u011bn\u00ed vyrovn\u00e1v\u00e1 zrna a sni\u017euje mno\u017estv\u00ed dutin nebo vnit\u0159n\u00edch vad. V d\u016fsledku toho je tepeln\u00e1 vodivost pod\u00e9l profilu konzistentn\u00ed. Tato konzistence napom\u00e1h\u00e1 hladk\u00e9mu pohybu tepla pod\u00e9l st\u011bn, \u017eeber nebo trubek. <\/p>\n

    \u0160patn\u011b odlit\u00e9 nebo sva\u0159en\u00e9 sestavy mohou vykazovat nesrovnalosti. Mohou zachycovat vzduch nebo m\u00edt prom\u011bnlivou hustotu. To m\u016f\u017ee zpomalit p\u0159enos tepla nebo vytvo\u0159it hork\u00e1 m\u00edsta. Extrudovan\u00e9 profily se t\u011bmto probl\u00e9m\u016fm vyhnou. <\/p>\n

    Souvisl\u00e1 kovov\u00e1 dr\u00e1ha pro veden\u00ed<\/h3>\n

    V \u017eebrov\u00fdch nebo deskov\u00fdch v\u00fdm\u011bn\u00edc\u00edch se teplo z kapaliny v j\u00e1d\u0159e p\u0159esouv\u00e1 p\u0159es st\u011bnu do \u017eeber a pot\u00e9 do okoln\u00edho vzduchu nebo jin\u00e9 kapaliny. Pokud je kov souvisl\u00fd a rovnom\u011brn\u00fd, ztr\u00e1ty veden\u00edm klesaj\u00ed. To zlep\u0161uje celkov\u00fd tepeln\u00fd v\u00fdkon. <\/p>\n

    Dlouh\u00e9 \u00faseky a souvisl\u00e9 \u00faseky<\/h3>\n

    Vytla\u010dov\u00e1n\u00ed umo\u017e\u0148uje vyr\u00e1b\u011bt dlouh\u00e9 souvisl\u00e9 d\u00edly se stejn\u00fdm pr\u016f\u0159ezem. To pom\u00e1h\u00e1 p\u0159i modul\u00e1rn\u00ed konstrukci v\u00fdm\u011bn\u00edk\u016f tepla. Moduly se skl\u00e1daj\u00ed na sebe nebo do \u0159ady s minim\u00e1ln\u00edmi mezerami. Tato rovnom\u011brnost zabra\u0148uje vzniku tepeln\u00fdch most\u016f nebo nerovnom\u011brn\u00e9mu proud\u011bn\u00ed. <\/p>\n

    Krom\u011b toho se p\u0159i lisov\u00e1n\u00ed hlin\u00edku \u010dasto pou\u017e\u00edvaj\u00ed slitiny s dobrou vodivost\u00ed (nap\u0159. 6063). V kombinaci s vyrovnanou strukturou zrn je tak zaji\u0161t\u011bna spolehliv\u00e1 vodivost. <\/p>\n

    Vliv na tepeln\u00fd v\u00fdkon<\/h3>\n

    Dobr\u00e9 vytla\u010dov\u00e1n\u00ed pom\u00e1h\u00e1:<\/p>\n

      \n
    • Rovnom\u011brn\u00e9 rozlo\u017een\u00ed tepla pod\u00e9l \u017eeber nebo trubek, aby se zabr\u00e1nilo vzniku hork\u00fdch m\u00edst. <\/li>\n
    • Efektivn\u00ed p\u0159enos mezi kapalinou uvnit\u0159 trubek a okoln\u00ed kapalinou vn\u011b trubek. <\/li>\n
    • \u0160k\u00e1lovatelnost: dlouh\u00e9, identick\u00e9 jednotky pro velk\u00e9 v\u00fdm\u011bn\u00edky tepla. <\/li>\n<\/ul>\n

      Vytla\u010dov\u00e1n\u00ed tedy nen\u00ed jen definov\u00e1n\u00ed tvaru. Zaji\u0161\u0165uje, aby kov skute\u010dn\u011b tepeln\u011b fungoval.<\/p>\n

      <\/svg> Extrudovan\u00e9 hlin\u00edkov\u00e9 profily maj\u00ed rovnom\u011brn\u011bj\u0161\u00ed tepelnou vodivost ne\u017e \u0161patn\u011b odlit\u00e9 kovov\u00e9 d\u00edly.<\/b>Pravda<\/span><\/p>

      Vyrovnan\u00fd tok zrn a minim\u00e1ln\u00ed vnit\u0159n\u00ed vady zp\u016fsoben\u00e9 vytla\u010dov\u00e1n\u00edm podporuj\u00ed konzistentn\u00ed veden\u00ed tepla nap\u0159\u00ed\u010d d\u00edlem.<\/p><\/div>
      \n

      <\/svg> Vytla\u010dov\u00e1n\u00ed ovliv\u0148uje pouze tvar, nikoli tepeln\u00e9 vlastnosti hlin\u00edku.<\/b>False<\/span><\/p>

      Vytla\u010dov\u00e1n\u00ed m\u00e1 vliv na mikrostrukturu a spojitost kovu, kter\u00e9 ovliv\u0148uj\u00ed \u00fa\u010dinnost veden\u00ed.<\/p><\/div><\/p>\n

      Jsou v\u00edcekan\u00e1lov\u00e9 v\u00fdlisky \u00fa\u010dinn\u00e9 p\u0159i chlazen\u00ed?<\/h2>\n

      Konstrukt\u00e9\u0159i si n\u011bkdy kladou ot\u00e1zku, zda se vyplat\u00ed m\u00edt v jednom v\u00fdlisku mnoho mal\u00fdch kan\u00e1lk\u016f. Obavy: bude pr\u016ftok dobr\u00fd? Bude obr\u00e1b\u011bn\u00ed nebo v\u00fdroba komplikovan\u00e1? Skute\u010dnost: V\u00edcekan\u00e1lov\u00e9 v\u00fdlisky funguj\u00ed velmi dob\u0159e, pokud jsou spr\u00e1vn\u011b navr\u017eeny. <\/p>\n

      V\u00edcekan\u00e1lov\u00e9 extrudovan\u00e9 profily umo\u017e\u0148uj\u00ed kompaktn\u00ed a efektivn\u00ed cesty kapaliny, kter\u00e9 maximalizuj\u00ed kontakt s povrchem a chlazen\u00ed na objem - \u010dasto p\u0159ekon\u00e1vaj\u00ed jednodu\u0161\u0161\u00ed jednotrubkov\u00e9 konstrukce v hustot\u011b p\u0159enosu tepla.<\/strong><\/p>\n

      \"Hlin\u00edkov\u00fd
      Hlin\u00edkov\u00fd profil 6063 T5 pro okna, dve\u0159e a z\u00e1v\u011bsy<\/figcaption><\/figure>\n<\/p>\n

      Pro\u010d funguje v\u00edcekan\u00e1lov\u00fd p\u0159\u00edstup<\/h3>\n

      V\u00edcekan\u00e1lov\u00e9 v\u00fdlisky obsahuj\u00ed mnoho paraleln\u00edch cest kapaliny v jednom d\u00edlu. T\u00edm se dos\u00e1hne vysok\u00e9ho pom\u011bru plochy k objemu. V\u011bt\u0161\u00ed povrch znamen\u00e1 v\u00edce m\u00edst pro v\u00fdm\u011bnu tepla. Proud\u011bn\u00ed se tak\u00e9 rozd\u011bluje do mnoha kan\u00e1l\u016f. T\u00edm se sni\u017euje rychlost proud\u011bn\u00ed kapaliny v jednom kan\u00e1lu, ale zv\u011bt\u0161uj\u00ed se celkov\u00e9 kontaktn\u00ed plochy. <\/p>\n

      Kompromisy ve velikosti, po\u010dtu a pr\u016ftoku kan\u00e1l\u016f<\/h3>\n

      Konstrukt\u00e9\u0159i mus\u00ed vyv\u00e1\u017eit \u0161\u00ed\u0159ku kan\u00e1lu, tlou\u0161\u0165ku st\u011bny a po\u010det kan\u00e1l\u016f. Pokud jsou kan\u00e1ly p\u0159\u00edli\u0161 \u00fazk\u00e9, stoup\u00e1 odpor proud\u011bn\u00ed. Tlakov\u00e1 ztr\u00e1ta je vysok\u00e1. To vy\u017eaduje siln\u011bj\u0161\u00ed \u010derpadla. Pokud je po\u010det kan\u00e1l\u016f n\u00edzk\u00fd, kles\u00e1 plocha povrchu. Pokud jsou st\u011bny mezi kan\u00e1ly p\u0159\u00edli\u0161 tenk\u00e9, trp\u00ed pevnost konstrukce p\u0159i tlaku nebo vibrac\u00edch. <\/p>\n

      Zde je uk\u00e1zka srovn\u00e1n\u00ed designu:<\/p>\n\n\n\n\n\n\n\n
      Mo\u017enost designu<\/th>\nPo\u010det kan\u00e1l\u016f<\/th>\nTlou\u0161\u0165ka st\u011bny<\/th>\nO\u010dek\u00e1van\u00e1 \u00fa\u010dinnost chlazen\u00ed<\/th>\nPr\u016ftokov\u00e1 tlakov\u00e1 ztr\u00e1ta<\/th>\n<\/tr>\n<\/thead>\n
      N\u011bkolik \u0161irok\u00fdch kan\u00e1l\u016f<\/td>\n2<\/td>\nSiln\u00e9<\/td>\nM\u00edrn\u00e1<\/td>\nN\u00edzk\u00e1<\/td>\n<\/tr>\n
      Mnoho \u00fazk\u00fdch kan\u00e1l\u016f<\/td>\n20<\/td>\nTenk\u00e9-st\u0159edn\u011b t\u011b\u017ek\u00e9<\/td>\nVysok\u00e1<\/td>\nSt\u0159edn\u011b vysok\u00e1 a vysok\u00e1<\/td>\n<\/tr>\n
      St\u0159edn\u00ed kan\u00e1ly<\/td>\n6<\/td>\nM\u00edrn\u00e1<\/td>\nDobr\u00e1 rovnov\u00e1ha<\/td>\nM\u00edrn\u00e1<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      Kdy\u017e konstrukt\u00e9\u0159i vyberou mnoho \u00fazk\u00fdch kan\u00e1l\u016f, chlazen\u00ed na objem prudce vzroste. To se hod\u00ed pro kompaktn\u00ed chladi\u010de nebo prostorov\u011b \u00fazk\u00e9 v\u00fdm\u011bn\u00edky. Pokud je probl\u00e9mem tlakov\u00e1 ztr\u00e1ta, men\u0161\u00ed po\u010det kan\u00e1l\u016f s m\u00edrnou velikost\u00ed zajist\u00ed rovnov\u00e1hu. <\/p>\n

      V\u00fdrobn\u00ed v\u00fdhody<\/h3>\n

      Proto\u017ee jsou v\u0161echny kan\u00e1ly vytla\u010deny najednou, nen\u00ed t\u0159eba sva\u0159ovat trubky nebo montovat jednotliv\u00e9 d\u00edly. T\u00edm se sni\u017euje po\u010det net\u011bsn\u00fdch m\u00edst. Sni\u017euje se tak\u00e9 pracnost a n\u00e1klady. Vytla\u010dov\u00e1n\u00ed zaji\u0161\u0165uje dokonal\u00e9 vyrovn\u00e1n\u00ed a stejnou tlou\u0161\u0165ku st\u011bn. <\/p>\n

      P\u0159\u00edpady pou\u017eit\u00ed v re\u00e1ln\u00e9m sv\u011bt\u011b<\/h3>\n

      V\u00edcekan\u00e1lov\u00e1 lisovan\u00e1 j\u00e1dra se objevuj\u00ed v chladi\u010d\u00edch automobil\u016f, pr\u016fmyslov\u00fdch v\u00fdm\u011bn\u00edc\u00edch tepla voda-vzduch a chladi\u010d\u00edch pro elektroniku. Poskytuj\u00ed kompaktn\u00ed proveden\u00ed s vysok\u00fdm tepeln\u00fdm tokem. Rovnom\u011brn\u00e9 kan\u00e1lky pom\u00e1haj\u00ed rovnom\u011brn\u00e9mu proud\u011bn\u00ed chladic\u00ed kapaliny a zabra\u0148uj\u00ed vzniku hork\u00fdch m\u00edst. <\/p>\n

      P\u0159esto je u takov\u00fdch konstrukc\u00ed nutn\u00e1 pe\u010dliv\u00e1 anal\u00fdza dynamiky tekutin. In\u017een\u00fd\u0159i mus\u00ed otestovat pr\u016ftok, tlakov\u00e9 ztr\u00e1ty a integritu konstrukce. Dob\u0159e navr\u017een\u00e9 v\u00edcekan\u00e1lov\u00e9 v\u00fdlisky \u010dasto dosahuj\u00ed nebo p\u0159ekon\u00e1vaj\u00ed v\u00fdkon tradi\u010dn\u00edch konstrukc\u00ed s \u017eebry a trubkami. <\/p>\n

      <\/svg> V\u00edcekan\u00e1lov\u00e9 extrudovan\u00e9 hlin\u00edkov\u00e9 profily mohou dos\u00e1hnout vy\u0161\u0161\u00ed hustoty tepeln\u00e9 v\u00fdm\u011bny na objem ne\u017e jednoduch\u00e9 trubky.<\/b>Pravda<\/span><\/p>

      Mnoho paraleln\u00edch kan\u00e1lk\u016f zv\u011bt\u0161uje vnit\u0159n\u00ed povrch a rozd\u011bluje proud\u011bn\u00ed kapaliny, \u010d\u00edm\u017e zlep\u0161uje chlazen\u00ed na jednotku objemu.<\/p><\/div>
      \n

      <\/svg> V\u00edcekan\u00e1lov\u00e1 vytla\u010dovac\u00ed konstrukce v\u017edy vede k n\u00edzk\u00e9mu pr\u016ftokov\u00e9mu odporu.<\/b>False<\/span><\/p>

      Pokud jsou kan\u00e1ly \u00fazk\u00e9 nebo maj\u00ed p\u0159\u00edli\u0161 tenk\u00e9 st\u011bny, m\u016f\u017ee doj\u00edt k velk\u00e9mu odporu proud\u011bn\u00ed a tlakov\u00e9 ztr\u00e1t\u011b.<\/p><\/div><\/p>\n

      Jak\u00e9 povrchov\u00e9 \u00fapravy zlep\u0161uj\u00ed p\u0159enos tepla?<\/h2>\n

      N\u011bkdy lid\u00e9 ignoruj\u00ed povrchovou \u00fapravu vytla\u010dovan\u00fdch d\u00edl\u016f. Mysl\u00ed si, \u017ee povrchov\u00e1 \u00faprava m\u00e1 v\u00fdznam pouze pro vzhled nebo korozi. Ve skute\u010dnosti m\u016f\u017ee povrchov\u00e1 \u00faprava v\u00fdrazn\u011b zm\u011bnit v\u00fdkon p\u0159i p\u0159enosu tepla. <\/p>\n

      Povrchov\u00e9 \u00fapravy, kter\u00e9 zvy\u0161uj\u00ed drsnost povrchu, p\u0159id\u00e1vaj\u00ed povlaky s vysokou emisivitou nebo chr\u00e1n\u00ed proti korozi, mohou zlep\u0161it tepelnou v\u00fdm\u011bnu a dlouhodobou spolehlivost.<\/strong><\/p>\n

      \"Ov\u00e1ln\u00fd
      Ov\u00e1ln\u00fd hlin\u00edkov\u00fd profil<\/figcaption><\/figure>\n<\/p>\n

      \u00daloha povrchov\u00e9 \u00fapravy v tepeln\u00e9m v\u00fdkonu<\/h3>\n

      P\u0159i p\u0159echodu tepla z kovu do kapaliny (vzduchu nebo kapaliny) z\u00e1le\u017e\u00ed na rozhran\u00ed. \u010cist\u00fd a hladk\u00fd povrch je m\u00e9n\u011b turbulentn\u00ed. Drsn\u00e9 povrchy nebo \u017eebra s texturou vytv\u00e1\u0159ej\u00ed mikroturbulence. Mikroturbulence zlep\u0161uje konvekci, zejm\u00e9na ve vzduchu nebo v kapalin\u011b s n\u00edzkou rychlost\u00ed. <\/p>\n

      Tak\u00e9 povrchov\u00e9 \u00fapravy, jako je eloxov\u00e1n\u00ed nebo \u010dern\u00fd oxid, mohou zv\u00fd\u0161it emisivitu povrchu. To napom\u00e1h\u00e1 radia\u010dn\u00edmu p\u0159enosu tepla a m\u016f\u017ee zlep\u0161it v\u00fdkon v prost\u0159ed\u00ed s tepeln\u00fdm v\u00fdm\u011bn\u00edkem, kde z\u00e1\u0159en\u00ed nebo okoln\u00ed chlazen\u00ed maj\u00ed v\u00fdznam. <\/p>\n

      B\u011b\u017en\u00e9 povrchov\u00e9 \u00fapravy a jejich \u00fa\u010dinky<\/h3>\n\n\n\n\n\n\n\n\n\n
      Typ povrchov\u00e9 \u00fapravy<\/th>\nStav povrchu<\/th>\nP\u0159\u00ednos pro p\u0159enos tepla<\/th>\n<\/tr>\n<\/thead>\n
      Povrchov\u00e1 \u00faprava fr\u00e9zov\u00e1n\u00edm<\/td>\nHladk\u00e1, minim\u00e1ln\u00ed textura<\/td>\nNi\u017e\u0161\u00ed konvekce, vhodn\u00e9 pro kapaliny s vysokou rychlost\u00ed.<\/td>\n<\/tr>\n
      Kart\u00e1\u010dovan\u00e9 nebo texturovan\u00e9<\/td>\nM\u00edrn\u00e1 drsnost<\/td>\nZv\u00fd\u0161en\u00e1 turbulence pro chlazen\u00ed vzduchem nebo n\u00edzk\u00fd pr\u016ftok<\/td>\n<\/tr>\n
      Eloxovan\u00fd (\u010dir\u00fd)<\/td>\nM\u00edrn\u00e1 vrstva oxidu<\/td>\nOdolnost proti korozi, stabiln\u00ed tepeln\u00e1 vodivost<\/td>\n<\/tr>\n
      eloxovan\u00e9 (barevn\u00e9\/\u010dern\u00e9)<\/td>\nTmav\u00e9, s vy\u0161\u0161\u00ed emisivitou<\/td>\nLep\u0161\u00ed radia\u010dn\u00ed a konvek\u010dn\u00ed chlazen\u00ed vzduchu<\/td>\n<\/tr>\n
      Pr\u00e1\u0161kov\u00e9 lakov\u00e1n\u00ed<\/td>\nJednotn\u00e1 vrstva povlaku<\/td>\nOchrana proti korozi; m\u016f\u017ee sn\u00ed\u017eit p\u0159\u00edm\u00e9 veden\u00ed, ale pom\u00e1h\u00e1 trvanlivosti<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

      U v\u00fdm\u011bn\u00edk\u016f tepla vzduch-vzduch nebo vzduch-kapalina jsou texturovan\u00e1, \u010dern\u011b eloxovan\u00e1 \u017eebra \u010dasto lep\u0161\u00ed ne\u017e hol\u00fd hlin\u00edk. Drsn\u00fd povrch podporuje rozru\u0161ov\u00e1n\u00ed vzduchu a lep\u0161\u00ed v\u00fdm\u011bnu tepla. Tmav\u00e1 barva napom\u00e1h\u00e1 vyza\u0159ov\u00e1n\u00ed, pokud to okoln\u00ed prost\u0159ed\u00ed umo\u017e\u0148uje. <\/p>\n

      U kapalinov\u00fdch chladi\u010d\u016f nebo ut\u011bsn\u011bn\u00fdch syst\u00e9m\u016f zaji\u0161\u0165uje eloxov\u00e1n\u00ed (\u010dir\u00e9) odolnost proti korozi, ani\u017e by p\u0159\u00edli\u0161 naru\u0161ilo vodivost. To zaji\u0161\u0165uje dlouhou \u017eivotnost p\u0159i pr\u016ftoku chladic\u00ed kapaliny. <\/p>\n

      Kdy\u017e z\u00e1le\u017e\u00ed na volb\u011b fini\u0161e<\/h3>\n
        \n
      • V syst\u00e9mech s vzduch na jedn\u00e9 stran\u011b<\/strong>: drsn\u00fd nebo eloxovan\u00fd tmav\u00fd povrch zlep\u0161uje konvekci. <\/li>\n
      • Ve vlhk\u00e9m nebo korozivn\u00edm prost\u0159ed\u00ed: korozivzdorn\u00e1 povrchov\u00e1 \u00faprava chr\u00e1n\u00ed dlouhou \u017eivotnost bez v\u011bt\u0161\u00ed ztr\u00e1ty v\u00fdkonu. <\/li>\n
      • V uzav\u0159en\u00fdch kapalinov\u00fdch syst\u00e9mech: m\u016f\u017ee sta\u010dit hladk\u00fd fr\u00e9zovan\u00fd povrch, proto\u017ee kontakt s kapalinou zaji\u0161\u0165uje dobrou vodivost. <\/li>\n<\/ul>\n

        Volba povrchov\u00e9 \u00fapravy z\u00e1vis\u00ed na typu kapaliny, rychlosti proud\u011bn\u00ed a prost\u0159ed\u00ed. Nevhodn\u00e1 povrchov\u00e1 \u00faprava m\u016f\u017ee sn\u00ed\u017eit \u00fa\u010dinnost nebo \u010dasem zp\u016fsobit korozi. <\/p>\n

        <\/svg> Texturovan\u00e1 nebo eloxovan\u00e1 tmav\u011b zbarven\u00e1 hlin\u00edkov\u00e1 \u017eebra zlep\u0161uj\u00ed odvod tepla ve vzduchem chlazen\u00fdch v\u00fdm\u011bn\u00edc\u00edch.<\/b>Pravda<\/span><\/p>

        Drsn\u00e1 textura podporuje konvekci a tmav\u00e1 barva zvy\u0161uje emisivitu, \u010d\u00edm\u017e zvy\u0161uje radia\u010dn\u00ed ochlazov\u00e1n\u00ed.<\/p><\/div>
        \n

        <\/svg> Hladk\u00fd extrudovan\u00fd povrch s fr\u00e9zovanou povrchovou \u00fapravou v\u017edy zaji\u0161\u0165uje nejlep\u0161\u00ed p\u0159enos tepla ve v\u0161ech typech v\u00fdm\u011bn\u00edk\u016f.<\/b>False<\/span><\/p>

        Hladk\u00e9 povrchy omezuj\u00ed konvekci p\u0159i chlazen\u00ed vzduchem; strukturovan\u00e9 nebo upraven\u00e9 povrchy \u010dasto l\u00e9pe p\u0159en\u00e1\u0161ej\u00ed teplo, pokud se jedn\u00e1 o vzduch.<\/p><\/div><\/p>\n

        Z\u00e1v\u011br<\/h2>\n

        Extrudovan\u00fd hlin\u00edk poskytuje mnoho mo\u017enost\u00ed profil\u016f pro v\u00fdm\u011bn\u00edky tepla. Spr\u00e1vn\u00e1 slitina, tvar profilu, konstrukce kan\u00e1lu a povrchov\u00e1 \u00faprava spole\u010dn\u011b ur\u010duj\u00ed tepeln\u00fd v\u00fdkon. V\u010dasn\u00e1 volba spr\u00e1vn\u00fdch mo\u017enost\u00ed pom\u00e1h\u00e1 vytv\u00e1\u0159et \u00fa\u010dinn\u00e9 a odoln\u00e9 v\u00fdm\u011bn\u00edky.<\/p>","protected":false},"excerpt":{"rendered":"

        Aluminum Extrusion Industry When engineers pick parts for heat exchangers they often start with the wrong metal. They worry heat flow or flow channels might fail. Fortunately, aluminum extrusion can solve many of those worries fast and efficiently. Extruded aluminum offers configurable cross\u2011sections, consistent material quality, and built\u2011in channels \u2014 ideal for heat exchanger designs […]<\/p>\n","protected":false},"author":6,"featured_media":8143,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"none","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"both","_seopress_redirections_param":"","_seopress_redirections_type":301,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"footnotes":""},"categories":[1],"tags":[],"class_list":["post-26712","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-custom-mold"],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26712","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/comments?post=26712"}],"version-history":[{"count":0,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/posts\/26712\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media\/8143"}],"wp:attachment":[{"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/media?parent=26712"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/categories?post=26712"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/sinoextrud.com\/cs\/wp-json\/wp\/v2\/tags?post=26712"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}