Kev ua haujlwm ntawm acondenseryog txheej txheem exothermic, uas ua rau muaj qhov kub thiab txias ntawm lub condenser nws tus kheej. Thaum lub sij hawm sib pauv cua sov, cov tshuaj corrosive thiab oxidative feem ntau tshwm sim - qhov no yog qhov tseeb tshwj xeeb rau huab cua - cov condensers txias uas sib pauv cua sov nrog cua sab nraum zoov. Yog li ntawd, cov ntaub ntawv siv rau condensers yuav tsum yog corrosion-resistant. Cov hom condensers feem ntau muaj xws li dej-cooled condensers, cua-cooled condensers, thiab evaporative condensers.
1. Condenser
1.1 Dej-Cov Condensers txias
Muaj feem xyuam rau nruab nrab thiab loj - cov khoom siv tub yees (piv txwv li, centrifugal compressors, ntsia hlau compressors).
Hom dej ntau-cooled condensers: kab rov tav plhaub-thiab- raj condensers, ntsug plhaub-thiab- raj condensers, ob- yeeb nkab condensers, thiab lwm yam.
Qhov zoo ntawm cov dej-cooled condensers: Cov cua kub hloov mus rau qhov zoo thiab cov qauv compact.
Disadvantages of water-cooled condensers (plhaub-and-tube type): Yuav tsum muaj dej txias; scaling ntawm lub raj phab ntsa txo cov cua sov hloov efficiency, yuav tsum tau tu tsis tu ncua.
1.2 Cua -Coled Condensers
Muaj feem xyuam rau me me thiab nruab nrab - cov khoom siv tub yees thiab dej - thaj chaw tsis tshua muaj.
Qhov zoo ntawm huab cua-cooled condensers: Tsis xav tau dej txias; yooj yim rau siv thiab nruab.
Disadvantages ntawm huab cua-cooled condensers: Tsawg tshav kub hloov coefficient, loj ntim thiab hnyav; plua plav txuam rau ntawm qhov chaw fin degrades cov cua sov hloov mus, yuav tsum tau tu raws sij hawm.
1.3 Evaporative Condenser
Muaj feem xyuam rau dej- thaj chaw tsis tshua muaj, tuaj yeem nruab sab nraum zoov, thiab siv dav hauv cov tshuab me me thiab nruab nrab- nplai.
Disadvantages ntawm evaporative condensers: Condenser hlab yog nquag corrosion thaum raug huab cua; Thaum cov dej evaporates sab nraum lub condenser, cov zaub mov tseem tshuav nyob rau ntawm lub condenser nto, ua rau kom ceev scale tsim - yog li, cov dej txias yuav tsum tau kho softening.
Qhov zoo ntawm cov evaporative condensers: Kev siv dej tsawg (3-5% ntawm cov dej txias condensers) thiab qis cua txaus.
Cov evaporators
Ib qho evaporator (fin-tube heat exchanger) yog ib qho khoom siv hluav taws xob txuas ncaj qha rau lub tshuab nqus cua sov. Lub refrigerant ntws los ntawm cov evaporator raj, absorbing latent cua sov thiab boiling nyob rau hauv cov huab cua. Txawm li cas los xij, vim muaj qhov sib txawv ntawm cov cua sov tsawg, kom ua tau raws li qhov yuav tsum tau muaj peev xwm ntawm cov cua sov, nws tsuas yog tsim nyog los ua kom cov cua sov hloov coefficient thiab kub hloov pauv kub (tsis muaj qhov sib txawv ntawm qhov kub ntawm qhov sib txawv), nthuav cov cua sov hloov mus rau qhov chaw, thiab nruab cov kiv cua los txhim kho huab cua txaus-txhua yam uas txhim kho cov evaporator lub tshav kub hloov pauv. Cov hom muaj xws li dej nyab evaporators, ntog- zaj duab xis evaporators, thiab ncaj qha nthuav evaporators.
2.1 Flooded Evaporators
Qhov zoo: Cov qauv compact, kev ua haujlwm yooj yim thiab kev tswj xyuas, kev hloov pauv kub kub coefficient.
Disadvantages: Thaum cov dej tshiab siv los ua cov khoom siv tub yees, cov kav dej yuav khov thiab tawg; qhov kub ntawm cov kua hauv qab nce siab, txo cov hluav taws xob hloov hluav taws xob thiab qhov kub hloov pauv kub sib txawv; lub tub yees yog miscible nrog lubricating roj, ua rau nyuaj rau cov roj rov qab; loj refrigerant nqi; thaum siv rau hauv nkoj, cov kua theem hloov tau yooj yim ua rau lub tog raj kheej sib tsoo.
2.2 Qhuav Evaporators
Qhov zoo: xyuas kom cov roj lubricating rov qab mus rau lub compressor; refrigerant nqi yog txo los ntawm ib tug -peb; tsis khov thaum lub evaporation kub yog ze rau 0 degree; thermal expansion li qub tuaj yeem siv rau cov tub yees throttling, uas yog yooj yim dua thiab txhim khu kev qha ntau dua li siv ntab li qub.
Qhov tsis zoo: Gas-kua sib cais tshwm sim ntawm lub hau kawg, cuam tshuam rau kev faib khoom sib xws hauv cov txheej txheem tom ntej thiab ua rau dej- sab to.
2.3 Direct Expansion Evaporators
Lub tshuab cua txias uas siv cov tub yees raws li qhov nruab nrab cua txias yog hu ua lub tshuab cua txias ncaj qha. Hauv kev xyaum, nws ua haujlwm raws li lub evaporator hauv lub voj voog tub yees thiab muaj kev ua haujlwm zoo ib yam li dej - cua txias cua txias. Thaum huab cua dhau los ntawm cov evaporator cov tub yees tub yees, nws pauv cov cua sov nrog cov kua refrigerant hauv cov raj. Cov kua refrigerant absorbs cua sov los ntawm huab cua thiab evaporates rau hauv refrigerant vapor, thaum huab cua kub poob vim cua sov poob.
Cov yam ntxwv ntawm kev nthuav dav ncaj qha evaporators: dav qhov ntsuas kub hloov pauv, kev saib xyuas yooj yim, compact qauv, yooj yim installation, tsheb thauj mus los, thiab kho.
Yog tias koj xav kawm txog cov kev qhia tshwj xeeb ntawm cov khoom siv hluav taws xob sib txawv (xws li thaj chaw hloov hluav taws xob, tsim siab / kub, tshaj tawm xov xwm, thiab cov khoom xaiv), thov koj xav tiv tauj peb txhua lub sijhawm. Peb yuav muab koj daim ntawv teev npe ua tiav thiab ua raws cov ntsiab lus ntawm koj cov kev xav tau ib txhij.
Email:global@gneesteels.com