The defrosting kwa ozizira yosungirako makamaka chifukwa cha chisanu pamwamba pa evaporator mu ozizira yosungirako, amene amachepetsa chinyezi mu ozizira yosungirako, kulepheretsa kutentha conduction payipi, ndi zimakhudza kuzirala. Njira zochepetsera zoziziritsa kuzizira zimaphatikizansopo:
kutentha kwa gasi defrosting
Molunjika kudutsa otentha mpweya condensing wothandizira mu evaporator ndi kuyenda mu evaporator. Kutentha kosungirako kuzizira kukwera mpaka 1 ° C, kompresa imazimitsidwa. Kutentha kwa evaporator kumakwera, zomwe zimapangitsa kuti chisanu chisungunuke kapena kusenda; kusungunuka kwa mpweya wotentha kumakhala kopanda ndalama komanso kodalirika, ndipo kukonza ndi kuyang'anira kuli kosavuta, ndipo ndalama zake ndi zomangamanga sizili zovuta. Komabe, pali njira zambiri zochotsera mpweya wotentha. Njira yodziwika bwino ndiyo kutumiza mpweya wothamanga kwambiri ndi kutentha kwambiri wotulutsidwa kuchokera ku kompresa kupita mu evaporator kuti itulutse kutentha ndi kuziziritsa, ndikulola madzi osungunuka alowe mu evaporator wina kuti atenge kutentha ndi kusanduka nthunzi kutentha pang'ono ndi mpweya wochepa. Bwererani ku kuyamwa kompresa kuti mumalize kuzungulira.
Kupopera madzi defrosting
Nthawi zonse utsi madzi kuziziritsa evaporator kupewa mapangidwe chisanu wosanjikiza; ngakhale kuti defrosting zotsatira za madzi kutsitsi defrosting ndi zabwino, ndi koyenera kwambiri kwa mpweya ozizira, amene n'zovuta ntchito koyilo evaporation. Palinso njira yothetsera kuzizira kwambiri, monga 5% -8% concentrated brine, kuteteza mapangidwe a chisanu.
Zamagetsidefrost Magetsi magetsiamatenthedwa kuti asungunuke.
Ngakhale ndizosavuta komanso zosavuta, molingana ndi momwe zimakhalira zosungirako zozizira komanso kugwiritsa ntchito pansi, zovuta zomanga kukhazikitsa waya wotenthetsera sizazing'ono, ndipo kulephera kwake kumakhala kwakukulu m'tsogolomu, kuyang'anira kukonza. nzovuta, komanso chuma n’chosauka.
Pali zina zambiri ozizira yosungirako defrosting njira, kuwonjezera magetsi defrosting, madzi defrosting ndi otentha mpweya defrosting, pali makina defrosting, etc. Mechanical defrosting makamaka ntchito zipangizo pamanja defrost, chisanu wosanjikiza pa ozizira yosungirako evaporating koyilo Pamene izo m'pofunika kuchotsa, popeza kamangidwe kozizira ozizira alibe chipangizo basi defrosting, yekha defrosting Buku angathe kuchitidwa, koma pali inconveniences ambiri.
Hot Fluoride Defrosting Chipangizo (Buku):Chipangizochi ndi chipangizo chosavuta cha defrost chomwe chimapangidwa molingana ndi mfundo ya kutentha kwa fluorine. Panopa amagwiritsidwa ntchito kwambiri m'mafakitale a firiji monga mafakitale a ayezi ndi firiji. Palibe ma valve a solenoid omwe amafunikira. Dongosolo Lodziyimira pawokha lozungulira la kompresa imodzi ndi evaporator imodzi. Sikoyenera kwa magawo ofanana, masitepe ambiri, ma cascade.
Ubwino:kulumikiza ndikosavuta, kuyikirako ndikosavuta, magetsi safunikira, chitetezo sichofunikira, kusungirako sikofunikira, katundu samasungidwa, kutentha kosungirako sikuzizira, ndipo zosungirako ndizozizira komanso zozizira. . Kugwiritsiridwa ntchito kwa mafakitale a firiji ndi firiji ndi 20 masikweya mita mpaka 800 masikweya mita, ndipo chubu chosungirako chozizira chaching'ono ndi chapakati chimachotsedwa. Zotsatira za zida zamafakitale oundana zophatikiza ndi mizere iwiri ya aluminiyamu.
zabwino mbali za defrosting kwenikweni
1.manual kulamulira batani limodzi lophimba, losavuta, lodalirika, lotetezeka, palibe kulephera kwa zipangizo chifukwa cha misoperation.
2. Kutentha kuchokera mkati, kuphatikiza kwa chisanu ndi khoma la chitoliro kumatha kusungunuka, ndipo gwero la kutentha limakhala lothandiza kwambiri.
3. defrosting ndi woyera ndi mokwanira, oposa 80% ya chisanu wosanjikiza ndi olimba, ndipo zotsatira zake ndi bwino ndi 2-fin zitsulo zotayidwa kumaliseche evaporator.
4. molingana ndi chithunzi chomwe chinayikidwa mwachindunji pa unit condensing, kugwirizana kwa chitoliro chosavuta, palibe zipangizo zina zapadera.
5. malinga ndi makulidwe enieni a makulidwe a chisanu wosanjikiza, amagwiritsidwa ntchito mphindi 30 mpaka 150.
6. Poyerekeza ndi zonona zotenthetsera zamagetsi: chitetezo champhamvu kwambiri, kutsika koyipa kwa kutentha kozizira, komanso kukhudzidwa pang'ono pakupanga ndi kuyika.
The evaporator ya ozizira yosungirako dongosolo ayenera kulabadira kukonza. Ngati evaporator frosting zingakhudze ntchito yachibadwa ya ozizira yosungirako, mmene defrost mu nthawi? Katswiri wathu wazosungirako zoziziritsa kuziziritsa usiku maupangiri oziziritsa omwe muyenera kulabadira mfundo za chisanu cha evaporator zidzatsogolera pakuwonjezeka kwa kutentha, kutsika kwa kutentha kwatsika. Kwa chiller, malo ozungulira mpweya wa mpweya amachepetsedwa, kukana kwa kutuluka kumawonjezeka, ndipo kugwiritsira ntchito mphamvu kumawonjezeka. Chifukwa chake, iyenera kuchotsedwa munthawi yake.
Zosungirako zozizira zamakono ndi izi:
1. Kuzizira pamanja ndi kosavuta komanso kosavuta, ndipo sikukhudza kwambiri kutentha kosungirako, koma mphamvu ya ntchito ndi yaikulu, kutsekemera sikuli bwino, ndipo pali zolephera.
2. Madziwo amatsukidwa, ndipo madzi a chisanu amawapopera pamwamba pa evaporator kupyolera mu chipangizo chopopera mankhwala kuti asungunuke wosanjikiza wapawiri, ndiyeno amatulutsidwa ndi chitoliro cha ngalande. Chiwembucho chimakhala ndi mphamvu zambiri, njira yosavuta yogwiritsira ntchito komanso kusinthasintha kochepa kwa kutentha kwa yosungirako. Kuchokera pamalingaliro amphamvu, mphamvu yozizirira pa lalikulu mita imodzi ya evaporation imatha kufika 250-400kj. Kukhetsa madzi kumapangitsanso kuti mkati mwa nyumba yosungiramo zinthu zikhale zosavuta kuchita chifunga, zomwe zimapangitsa kuti madzi adonthe padenga lozizira, zomwe zimachepetsa moyo wautumiki.
3. Kutentha kwa mpweya wotentha, pogwiritsa ntchito kutentha komwe kumatulutsidwa ndi nthunzi yotentha kwambiri yomwe imatulutsidwa ku kompresa kusungunula magawo awiri pamwamba pa evaporator. Makhalidwe ake ndi okhazikika komanso omveka pakugwiritsa ntchito mphamvu. Kwa ammonia refrigeration system, defrosting imathanso kuthamangitsa mafuta mu evaporator, koma nthawi yoziziritsa ndi yotalikirapo, yomwe imakhudza kwambiri kutentha kosungirako. Dongosolo la firiji ndizovuta.
4, Kutentha kwamagetsi ndi kusungunula, kugwiritsa ntchito chowotchera kutentha kusungirako kuzizira kuti kusungunuke. Dongosololi ndi losavuta, losavuta kugwiritsa ntchito, losavuta kupanga, koma limawononga mphamvu zambiri.
Pamene ndondomeko yeniyeni yatsimikiziridwa, nthawi zina ndondomeko yowonongeka imagwiritsidwa ntchito, ndipo nthawi zina njira zosiyanasiyana zimaphatikizidwa. Monga ozizira yosungirako alumali chitoliro, khoma, pamwamba yosalala chitoliro, mungagwiritse ntchito yokumba kuphatikiza ya njira yotentha mpweya, kawirikawiri Buku frosting, wokhazikika kutentha mpweya defrost, kumvetsa bwino yokumba kusesa chisanu si kophweka kuchotsa chisanu ndi kutulutsa mafuta. mu payipi. Mpweya wowuzira mpweya umatsukidwa ndi madzi ndi mpweya wotentha. Kuti chisanu chizizizira kwambiri, kuziziritsa pafupipafupi kumatha kuchitidwa ndi mpweya wotentha pamodzi ndi kuthira madzi. Pamene firiji yosungiramo kuzizira ikugwira ntchito, kutentha kwapamwamba kwa evaporator nthawi zambiri kumakhala pansi pa ziro. Chifukwa chake, evaporator imatha kuzizira, ndipo chisanu chosanjikiza chimakhala ndi kukana kwakukulu kwamafuta, chifukwa chake, chithandizo choyenera cha defrosting chimafunika pamene chisanu ndi chandalama.
Evaporator ya kusungirako kuzizira imagawidwa kukhala mtundu wa chitoliro cha khoma ndi mtundu wa fin malinga ndi kapangidwe kake, mtundu wosunthira khoma ndikusintha kutentha kwachilengedwe, mtundu wa fin umakakamizidwa kutengera kutentha kwa convection, ndi njira yochepetsera khoma-mzere chubu mtundu. nthawi zambiri amapangidwa pamanja. Frost, mtundu wa fin wokhala ndi zonona zamagetsi zamagetsi.
Kuwotcha pamanja ndikovuta kwambiri. M'pofunika kuti pamanja defrost, kuyeretsa chisanu, ndi kusuntha zili laibulale. Nthawi zambiri, wogwiritsa ntchito amayenera kupita ku defrosting kwa nthawi yayitali kapena miyezi ingapo. Pamene defrosting, chisanu wosanjikiza kale wandiweyani. Kukaniza kutentha kwa wosanjikiza kwapangitsa evaporator kutali ndi kukwaniritsa firiji. Kuwotcha kwamagetsi ndi sitepe imodzi kupitirira kupukuta kwamanja pamanja, koma kumangotengera ma evaporator opangidwa ndi zipsepse, ma evaporator a khoma ndi chubu sangathe kugwiritsidwa ntchito.
Mtundu wotenthetsera wamagetsi uyenera kuyikidwa mu chubu chotenthetsera chamagetsi mu evaporator yamtundu wa fin, ndipo chubu chotenthetsera chamagetsi chiyenera kuyikidwa mu tray yolandirira madzi. Pofuna kuchotsa chisanu mwamsanga, mphamvu ya chubu yotentha yamagetsi sichingasankhidwe yaying'ono kwambiri, kawirikawiri Idzakhala ma kilowatts ochepa. Njira yoyendetsera ntchito ya chubu yamagetsi yotenthetsera nthawi zambiri imatenga nthawi yowongolera kutentha. Kutentha, chubu chotenthetsera chamagetsi chimatengera kutentha kwa evaporator, ndipo gawo lina la chisanu pa coil ya evaporation ndi zipsepsezo zimasungunuka, ndipo gawo lina la chisanu silimasungunula thireyi yamadzi yomwe ikugwa, ndipo imatenthedwa ndikusungunuka ndi magetsi Kutentha chubu mu thireyi kulandira madzi. Uku ndikuwononga magetsi, ndipo kuzizira kwake kumakhala koyipa kwambiri. Chifukwa evaporator imakhala yodzaza ndi chisanu, mphamvu yosinthira kutentha ndiyotsika kwambiri.
Zachilendo ozizira yosungirako defrosting njira
1. Kwa kutentha kwa mpweya wotentha wa machitidwe ang'onoang'ono, dongosolo ndi njira yolamulira ndi yosavuta, kuthamanga kwa defrosting ndi mofulumira, yunifolomu ndi yotetezeka, ndipo mawonekedwe a ntchito ayenera kukulitsidwa.
2. Kutsekemera kwa pneumatic ndikoyenera makamaka kwa machitidwe a firiji omwe amafunikira kusungunuka pafupipafupi. Ngakhale kuli kofunikira kuwonjezera magwero apadera a mpweya ndi zipangizo zothandizira mpweya, malinga ngati mtengo wogwiritsira ntchito uli wapamwamba, chuma chidzakhala chabwino kwambiri.
3. Akupanga defrosting ndi njira yodziwikiratu yochepetsera kupulumutsa mphamvu. Kamangidwe ka akupanga majenereta ayenera zina kuphunzira kusintha mwatsatanetsatane wa defrosting kwa zomangamanga ntchito.
4, madzi ozizira refrigerant defrosting, ndondomeko yozizira ndi defrosting ndondomeko pa nthawi yomweyo, palibe kugwiritsa ntchito mphamvu zina pa defrosting, chisanu kuzirala ntchito refrigerant madzi pamaso supercooling valavu kukulitsa, kusintha kuzirala dzuwa kuti laibulale kutentha akhoza makamaka anakhalabe. Kutentha kwa refrigerant yamadzimadzi kumakhala mkati mwa kutentha kwabwino, ndipo kutentha kwa evaporator panthawi ya defrost kumakhala kochepa, komwe kumakhala kochepa kwambiri pa kuwonongeka kwa kutentha kwa evaporator. Choyipa chake ndikuti kuwongolera kovutirako kwadongosolo ndikovuta.
Panthawi ya defrosting, nthawi zambiri zimakhala mosasamala kanthu za kutentha. Nthawi yoziziritsa yatha, ndiyeno mpaka nthawi yodontha, fani imayambiranso. Nthawi yanu yoziziritsa siyenera kukhazikitsidwa motalika kwambiri, ndipo kirimu chowotcha chamagetsi sayenera kupitirira mphindi 25. Yesetsani kukwaniritsa defrosting yoyenera. (Kuzungulira kwa defrosting nthawi zambiri kumatengera nthawi yotumizira mphamvu kapena nthawi yoyambira kompresa.) Kuwongolera kwina kwa kutentha kwamagetsi kumathandiziranso kutentha komaliza. Imamaliza defrosting mu modes awiri, 1 ndi nthawi ndi 2 ndi kuwen. Izi nthawi zambiri zimagwiritsa ntchito ma probe 2 kutentha.
Pogwiritsira ntchito tsiku ndi tsiku kusungirako kuzizira, m'pofunika kuchotsa chisanu nthawi zonse pa malo ozizira. The kwambiri chisanu pa ozizira yosungirako si yabwino ntchito yachibadwa ntchito ozizira yosungirako. Mu pepala, tsatanetsatane wa chisanu pa malo ozizira ozizira ayenera kutengedwa. Njira yochotsera? Kodi njira zodziwika bwino ndi ziti?
1. Yang'anani mufiriji ndikuwona ngati pali thovu mu galasi loyang'ana. Ngati pali kuwira kusonyeza kusakwanira, onjezani refrigerant kuchokera otsika kuthamanga chitoliro.
2. Yang'anani ngati pali kusiyana mu mbale yosungiramo kuzizira pafupi ndi chitoliro chotulutsa chisanu, zomwe zimapangitsa kuti kuzizirike kutayike. Ngati pali kusiyana, sindikizani mwachindunji ndi galasi guluu kapena thovu.
3. Yang'anani chitoliro chamkuwa ngati chikutha, kupoperani kuti muwone ngati akutuluka kapena madzi a sopo kuti muwone ngati mpweya umatulutsa.
4. chifukwa cha kompresa yokha, mwachitsanzo, mkulu ndi otsika mpweya mpweya, ayenera m'malo valavu, anatumiza kwa kompresa kukonza shopu kukonza.
5. kuti muwone ngati ili pafupi ndi kubwerera ku malo kukoka, ngati izo, ndiye kutayikira kuzindikira, kuwonjezera refrigerant. Pankhaniyi, chitoliro nthawi zambiri sichimayikidwa mopingasa. Ndi bwino kuti mulingo ndi mlingo. Ndiye palibe mtengo wokwanira wa firiji, mwina kuti firiji imawonjezedwa, kapena pali ice block mupaipi.
Nthawi yotumiza: Sep-26-2024