ukhuseleko lwesilumkiso
Izixhobo zokuzikhusela zomntu ezifana neeglavu, iiglasi, izihlangu kufuneka zibonelelwe xa usebenzisa ezi zixhobo.
Iinkonzo zokufakela, zokugunyazisa, zokuvavanya, zokuvala kunye nezokulungisa kufuneka zenziwe ngabasebenzi abafanelekileyo (abakhandi befriji okanye oosombane) abanolwazi olwaneleyo namava olu hlobo lwezixhobo. Luxanduva lomthengi ukubonelela ngabasebenzi bokusebenza ukuze benze umsebenzi.
Zonke izixhobo zingatshajwa ngomoya owomileyo okanye i-nitrogen enoxinzelelo oluphezulu. Qiniseka ukuba uyikhupha ngononophelo igesi ecinezelweyo ngaphambi kokufaka okanye ukuqalisa ukusebenza kwezixhobo.
Kuphephe ukuchukumisa imiphetho yesinyithi kunye namaphiko ekhoyili, kuba imiphetho ebukhali inokubangela ukwenzakala komntu.
Ukuphefumla okanye ukudibana nolusu ne-refrigerant kunokubangela ukwenzakala, i-refrigerant esetyenziswa kwezi zixhobo yinto elawulwayo kwaye kufuneka isetyenziswe kwaye ihlaziywe ngokufanelekileyo. Akukho mthethweni ukukhupha i-refrigerant kwindawo engqongileyo. Yiphathe ngononophelo olukhulu i-refrigerant, kungenjalo kunokubakho ukwenzakala komntu okanye ukufa.
Umbane kufuneka ucinywe ngaphambi kokuba kwenziwe nayiphi na inkonzo okanye umsebenzi wombane.
Kuphephe ukudibana nemibhobho yefriji kunye neendawo zokutshintshiselana nobushushu xa izixhobo zisebenza. Iindawo ezishushu okanye ezibandayo zinokubangela umonakalo kulusu lwakho.
Iimeko zoYilo oluQhelekileyo
I-evaporator yobushushu obuphakathi yenzelwe ubushushu bokufunxa obugcweleyo obuyi-0°C kunye nomahluko wobushushu obuyi-8K. Ifanelekile kwiifriji zorhwebo ezinobushushu begumbi obuqala kwi--6°C ukuya kwi-20°C. Iindlela ezongezelelweyo zokunyibilikisa ziyafuneka xa ubushushu begumbi bungaphantsi kwe-2°C. Iifriji ezicetyiswayo zale evaporator yi-R507/R404A kunye ne-R22.
I-evaporator enobushushu obuphantsi yenzelwe ukuba ifunxe ishushu kakhulu ibe yi--25°C kunye nomahluko wobushushu obuyi-7K. Ifanelekile kwindawo yokugcina ebandayo yorhwebo enobushushu obuqala kwi--6°C ukuya kwi--32°C. Iifriji ezicetyiswayo zale evaporator yi-R507/R404A kunye ne-R22.
Ezi evaporators ziqhelekileyo azinakusebenzisa i-ammonia (NH3) njengefriji.
Indawo ecetyiswayo yokufaka
Imithetho yokulungiselela umphunga yile ilandelayo:
Ukusasazwa komoya kufuneka kugubungele lonke igumbi okanye indawo esebenzayo.
Akuvumelekanga ukufaka i-evaporator phezulu kocango.
Ulungiselelo lweendlela kunye neeshelufu akufuneki luthintele ukuhamba komoya ohambisayo kunye nomoya obuyayo we-evaporator.
Umgama wombhobho ukusuka kwi-evaporator ukuya kwi-compressor kufuneka ugcinwe umfutshane kangangoko.
Gcina umgama wepayipi ukuya kumjelo wokuhambisa amanzi umfutshane kangangoko.
Ubuncinci bokuvunyelwa kokufakelwa:
S1 – Umgama phakathi kodonga kunye necala lomoya lekhoyili ubuncinci yi-500mm.
S2 – Ukuze kube lula ukugcinwa, umgama ukusuka eludongeni ukuya kwipleyiti yokugqibela kufuneka ubuncinci ube yi-400mm.
Amanqaku okufaka
1. Ukususwa kwephakheji:
Xa ukhupha izinto, hlola izixhobo kunye nezinto zokupakisha ukuze ubone ukuba azinamonakalo na, nawuphi na umonakalo unokuchaphazela ukusebenza. Ukuba kukho iindawo ezonakeleyo ngokucacileyo, nceda unxibelelane nomthengisi kwangethuba.
2. Ukufakelwa kwezixhobo:
Ezi evaporators zinokuqiniswa ngeebholiti kunye neenati. Ngokubanzi, ibholiti enye ye-5/16 kunye nenati zinokuthwala ukuya kuthi ga kwi-110Kg (250lb) kwaye i-3/8 inokubamba ukuya kuthi ga kwi-270Kg (600lb). Nangona kunjalo, luxanduva lomfaki ukuqinisekisa ukuba i-evaporator ifakwe ngokukhuselekileyo nangobuchwephesha kwindawo ekhethiweyo.
Bopha i-evaporator uze ushiye indawo eyaneleyo ukusuka kwipleyiti ephezulu ukuya eluphahleni ukuze kube lula ukuyicoca.
Faka i-evaporator ngendlela ehambelanayo eluphahleni, uze uvale umsantsa phakathi kophahla kunye nomphezulu we-evaporator nge-food sealant.
Ukufakelwa kwe-evaporator kufanele kube kobuchwephesha kwaye indawo kufuneka ifaneleke ukuqinisekisa ukuba amanzi aqunyiweyo anokukhutshwa ngokufanelekileyo kwi-evaporator. Inkxaso kufuneka ibe namandla aneleyo okuthwala ubunzima be-evaporator ngokwayo, ubunzima be-refrigerant etshajiweyo kunye nobunzima beqabaka elibekwe phezu kwekhoyili. Ukuba kunokwenzeka, kucetyiswa ukusebenzisa isixhobo sokuphakamisa ukuphakamisa isilingi.
3. Umbhobho wokukhupha amanzi:
Nceda uqinisekise ukuba ukufakwa kombhobho wokukhupha amanzi kuhambelana ne-HACCP yokutya kunye nemigaqo yokhuseleko ehambelanayo. Izinto ezisetyenzisiweyo zinokuba ngumbhobho wobhedu, umbhobho wentsimbi engagqwaliyo okanye umbhobho wePVC, ngokutsho komthengi. Kwizicelo zobushushu obuphantsi, kufuneka i-insulation kunye neentambo zokufudumeza ukuthintela umbhobho wokukhupha amanzi ukuba ungabi shushu. Kucetyiswa ukuba ufake imibhobho yokukhupha amanzi ngokuchanekileyo rhoqo kwi-1m yethambeka elingama-300mm. Umbhobho wokukhupha amanzi ubuncinane ulingana noqhagamshelo lwepani ye-evaporator sump. Zonke imibhobho yokukhupha amanzi e-condensate kufuneka zifakwe ngee-bends ezimile okwe-U ukuthintela umoya wangaphandle kunye nevumba ukuba lingangeni kwindawo yokugcina amanzi ebandayo. Akuvumelekanga ngokupheleleyo ukunxibelelana ngokuthe ngqo nenkqubo yamanzi amdaka. Zonke ii-U-bends zibekwe ngaphandle ukuthintela i-icing. Kucetyiswa ukuba ubude bombhobho wokukhupha amanzi kwindawo yokugcina amanzi ebandayo bube bufutshane kangangoko.
4. Isahluli sefriji kunye nomlomo:
Ukuze kuqinisekiswe ukuba i-evaporator ifumana ukupholisa okugqwesileyo, kufuneka kufakwe i-liquid separator ngokuthe nkqo ukuqinisekisa ukuba i-refrigerant isasazwa ngokulinganayo kwisekethe nganye yefriji.
5. Ivalvu yokwandisa ubushushu, iphakheji yokuva ubushushu kunye nombhobho wokulinganisela wangaphandle:
Ukuze kufezekiswe isiphumo esihle kakhulu sokupholisa, ivalvu yokwandisa ubushushu kufuneka ifakwe kufutshane kakhulu nesahluli solwelo.
Beka ibhalbhu yevalvu yokwandisa ubushushu kwindawo ethe tye yombhobho wokudonsa kwaye kufutshane nentloko yokudonsa. Ukuze kufezekiswe imeko yokusebenza eyanelisayo, kuyimfuneko ukuqinisekisa unxibelelwano oluhle lobushushu phakathi kwebhalbhu nombhobho wokudonsa. Ukubekwa kwevalvu yokwandisa ubushushu kunye nebhalbhu yobushushu kufuneka kulandele imiyalelo yomenzi. Ukufakelwa okungafanelekanga kunokubangela ukupholisa okungalunganga.
Umbhobho wokulinganisela wangaphandle usetyenziselwa ukudibanisa isango lokulinganisela langaphandle levalvu yokwandisa ubushushu kunye nombhobho wokudonsa kufutshane nombhobho wokudonsa. Umbhobho wobhedu oyi-1/4 intshi odibanisa nombhobho wokudonsa ubizwa ngokuba ngumbhobho wokulinganisela wangaphandle.
Qaphela: Okwangoku, umgangatho wevalvu yokwandisa ubushushu ulungile, akukho kuvuza kuncinci kwefriji kumbhobho webhalansi yangaphandle, kwaye ukusebenza kuzinzile. Ngoko ke, indawo yoqhagamshelo lwebhalansi yangaphandle inokuba phambi kwesensor yobushushu okanye ngasemva kwesensor yobushushu.
6. Umbhobho wefriji:
Uyilo kunye nokufakelwa kwemibhobho yokupholisa kufuneka kwenziwe ngabachwephesha abafanelekileyo bokupholisa ngokuhambelana nemigaqo yesizwe neyengingqi, kunye neendlela ezilungileyo zokusebenza kobunjineli bokupholisa.
Ngexesha lokufakela, nciphisa ixesha umlomo wempumlo ovezwa emoyeni ukuze uthintele ukungena kokungcola kwangaphandle kunye nokufuma.
Umbhobho odibanisa ifriji akufuneki ufane nombhobho wokuphuma we-evaporator. Ukukhethwa nokubalwa kobukhulu bombhobho kufuneka kusekelwe kumgaqo wokunciphisa uxinzelelo oluncinci kunye nokunciphisa isantya sokuhamba kwamanzi.
Umbhobho wokufunxa othe tye kufuneka ushiye umphunga uthambekele ngandlela ithile ukuqinisekisa ukuba ubunzima bee-oyile ezikhenkcezisiweyo bubuyela kwi-compressor. Ukuthambeka kwe-1:100 kwanele. Xa umbhobho wokufunxa uphezulu kune-evaporator, kungcono ukufaka umgibe wokubuyisela ioyile.
Isikhokelo sokulungisa iimpazamo
Ukuqaliswa nokuqaliswa kwenkqubo yokukhenkcisa kufuneka kwenziwe ngumatshini ofanelekileyo wokukhenkcisa ngokwendlela yokusebenza efanelekileyo yokukhenkcisa.
Inkqubo mayigcine i-vacuum eyaneleyo ukuze kungabikho kuvuza xa itshaja i-refrigerant. Ukuba kukho ukuvuza kwinkqubo, kuvakala ukuba ukuphinda uyitshaje i-refrigerant akuvumelekanga. Ukuba inkqubo ayikho phantsi kwe-vacuum, jonga ukuvuza okune-nitrogen phantsi koxinzelelo ngaphambi kokuba uyitshaje i-refrigerant.
Sisicelo sobunjineli esihle sokufaka i-liquid dryer kunye ne-sight glass kwinkqubo yokukhenkcisa. Ii-liquid line dryers ziqinisekisa ukuba i-refrigerant kwinkqubo icocekile kwaye yomile. Iglasi yokukhenkcisa isetyenziselwa ukujonga ukuba kukho i-refrigerant eyaneleyo kwinkqubo.
Ukutshaja kwenziwa ngefriji engamanzi, ngokuqhelekileyo kwicala elinoxinzelelo oluphezulu lwenkqubo, njenge-condenser okanye i-accumulator. Ukuba ukutshaja kufuneka kwenziwe kwicala lokufunxa le-compressor, kufuneka kutshajwe ngendlela yegesi.
Iingcingo zefektri zisenokuba zikhululekile ngenxa yothutho, nceda uqinisekise kwakhona iingcingo ngaphambi kokuba uphume efektri kunye neengcingo ezikwindawo osebenza kuyo. Qinisekisa ukuba i-motor yefeni isebenza kwicala elifanelekileyo kwaye umoya utsalwa kwikhoyili kwaye uphuma kwicala lefeni.
Isikhokelo sokuvala
Susa i-evaporator kwindawo yayo yokuqala yokufakela kwaye kufuneka ikhutshwe ngumatshini ofanelekileyo wokukhenkcisa emva kwenkqubo engezantsi. Ukungaphumeleli ukulandela le nkqubo kuya kubangela ukwenzakala komqhubi okanye ukufa kunye nomonakalo wepropathi ngenxa yomlilo okanye ukuqhuma. Akukho mthethweni ukukhupha i-refrigerant ngqo emoyeni. I-refrigerant egcweleyo kufuneka ipompelwe kwi-accumulator okanye kwitanki yokugcina ulwelo efanelekileyo, njenge-cylinder yokuphinda isetyenziswe, kwaye ivalvu ehambelanayo kufuneka ivalwe ngaxeshanye. Zonke ii-refrigerant ezifunyenweyo ezingenakusetyenziswa kwakhona kufuneka zithunyelwe kwiindawo ezifanelekileyo zokuphinda zisetyenziswe okanye zonakaliswe yi-refrigerant.
Ncima umbane. Susa zonke iintambo zombane ezingafunekiyo, izinto zombane ezihambelanayo, uze ekugqibeleni usike ucingo oluphantsi komhlaba uze ukhuphe idreyini.
Ukuze kulinganiswe uxinzelelo phakathi kwe-evaporator kunye nehlabathi langaphandle, kufuneka kuthathwe unonophelo olukhethekileyo xa kuvulwa i-needle valve core. Inani elithile le-refrigerant liyanyibilika kwi-oyile yokuthambisa. Xa uxinzelelo lwe-evaporator lunyuka, i-refrigerant iya kubila kwaye iguquguquke, nto leyo enokubangela ukwenzakala komntu.
Sika uze uvale amalungu emigca yolwelo kunye negesi.
Susa i-evaporator kwindawo yokufakela. Xa kuyimfuneko, sebenzisa izixhobo zokuphakamisa.
ukugcinwa rhoqo
Ngokusekelwe kwiimeko eziqhelekileyo zokusebenza kunye nemeko-bume, emva kokuyivula ngempumelelo, kufuneka kulungiselelwe ishedyuli yokulungisa ukuqinisekisa ukuba i-evaporator isebenza kakuhle ngelixa igcina iindleko zokusebenza ziphantsi. Xa usenza ulungiso, jonga kwaye urekhode ezi parameter zilandelayo:
Jonga i-evaporator ukuba ayinamhlwa na, ukungcangcazela okungaqhelekanga, iiplagi zeoyile kunye needrain ezimdaka. Iidrain zifuna ukucocwa rhoqo ngamanzi afudumeleyo anesepha.
Coca amaphiko e-evaporator ngebrashi ethambileyo, hlambulula ii-coil ngamanzi aphantsi koxinzelelo okanye sebenzisa i-coil washer ethengiswayo. Akuvumelekanga ukusebenzisa ii-arhente zokucoca ezine-asidi. Nceda ulandele imigaqo yokusetyenziswa kwelogo. Hlamba i-coil ide ingabi nantsalela.
Qinisekisa ukuba ifeni nganye yemoto ijikeleza ngokuchanekileyo, ukuba isigqubuthelo sefeni asivalwanga, kwaye iibholithi ziqinisiwe.
Jonga iingcingo, izihlanganisi, kunye nezinye izinto ukuba azinamonakalo na kwiingcingo, iingcingo ezikhululekileyo, kunye nokuguguleka kwezinto.
Jonga ukuba iqabaka limile ngendlela efanayo na kwikhoyili esecaleni lokukhupha umoya ngexesha lokusebenza. Ibhokisi elingalinganiyo libonisa ukuvaleka kwentloko yesixhobo sokukhupha umoya okanye itshaja yefriji engachanekanga. Kusenokubakho iqabaka kwikhoyili kwindawo yokufunxa ngenxa yegesi eshushu kakhulu.
Khangela iimeko zeqabaka ezingaqhelekanga uze ulungise umjikelo wokunyibilika ngokufanelekileyo.
Jonga ubushushu obukhulu kwaye ulungise ivalvu yokwandisa ubushushu ngokufanelekileyo.
Umbane kufuneka ucinywe ngexesha lokucoca nokulungisa. Iipani zokukhupha amanzi zikwayinxalenye efuna ukulungiswa (iindawo ezishushu, ezibandayo, zombane nezihambayo). Kukho umngcipheko wokhuseleko ekusebenzeni kwe-evaporator ngaphandle kwesump yamanzi.
Ixesha lokuthumela: Novemba-23-2022
