Kana tembiricha yekubuda kweiyo inotonhora yekuchengetera firiji system yakadzikira kupfuura 0 ° C, chando chechando chinozoonekwa pamusoro peiyo evaporator, inokanganisa kupisa kwekushisa.Nokudaro, kusvibiswa nguva dzose zvakare chikamu chakakosha chekuchengetedza kutonhora kwekuchengetedza.Kune nzira dzakawanda dzekudzikisa chando.Parizvino, vagadziri vekuvaka inotonhora vanonyanya kushandisa nzira shanu: dhizaini yekugadzira, yemagetsi defrosting, inopisa mhepo inopisa, kuputika kwemvura, kupisa kwemhepo inopisa mvura.
1. Manual defrosting ndiko kubvisa chando nemaoko pamusoro pe evaporator discharge chubhu.Iyi nzira inogona kuitwa pasina kumisa midziyo yefiriji.Iyi nzira inotora nguva uye inobata, uye defrosting mhedzisiro haina kunaka.
2. Kubvisa magetsi ndiko kuisa heater yemagetsi pane evaporator kuti iparadze nekupisa kwemagetsi.Panguva yekudzikisa, misa compressor kana kumisa kudyisa mvura kune evaporator.Magetsi defrosting ane zvakanakira mutengo wakaderera uye nyore kudzora, asi mutengo wekushanda wakakwirisa.Inowanzo shandiswa kudzikisa chando chemidziyo yekuchengetera, kwete yekubvisa chando chemidziyo yefiriji.Kune tembiricha dzakasiyana, izvo zvinodikanwa zvehunyanzvi hwekudzivirira zvinofanirwa kunge zvakasiyana, uye inodiwa yekutonhodza simba inofanirawo kunge yakasiyana.Iko kumisikidzwa kwekutonhora kwekuchengetera kunoda kugadziridzwa zvinoenderana nemutengi chaiyo application nharaunda uye mashandisiro, kunze kwekunge pasina yakakosha kudiwa kwekutora mugwagwa wekumira.
3. Kupisa gasi defrosting ndiko kushandiswa kwepamusoro-soro refrigerant steam inobudiswa necompressor kusunungura kupisa mu evaporator uye kunyungudutsa chando chechando pamusoro pe evaporator.Kupisa gasi defrosting system yakaoma uye mutengo wakakwira.Asi defrosting mhedzisiro iri nani.Kana ichishandiswa muammonia system, mafuta akaunganidzwa muevaporator anogona zvakare kuburitswa mudhiraini kana yakaderera kutenderera kutenderera reservoir.Mukuita kwekupisa gasi defrosting, kudzvanywa kunowanzo kudzorwa pa 0.6MPa.Edza kushandisa high-pressure gasi rinoburitswa kubva pane imwe nhanho compressor yekudzikisa.Nguva yechando inogona kunge yakakodzera kuderedza mvura inotonhora kana kuderedza nhamba ye condensers, kuwedzera kupisa kwekushisa, kupfupisa nguva yekudzikisa.Kune masisitimu eammonia, inopisa ammonia yekusvibisa inofanira kubatanidzwa kune pombi yekupedza yemafuta ekuparadzanisa.
4. Kubvisa mvura kupfapfaidza mvura pamusoro peevaporator nemudziyo wekupfapfaidza kuti unyungudise chando.Mvura defrosting system ine chimiro chakaoma uye mutengo wakakwira, asi mhedzisiro yakanaka uye mutengo wakaderera.Kusvibisa mvura kunongobvisa chando chechando pamusoro pekunze kweiyo evaporator, uye haigone kugadzirisa iyo yakaipa mhedzisiro yekuunganidzwa kwemafuta muevaporator pakutamisa kupisa.Chinhu chinonyanya kukosha ndiro bhodhi rekuchengetedza inotonhora, iyo inowanzobudiswa mberi nechando chekuchengetedza bhodhi mugadziri uye ine hurefu hwakagadziriswa, upamhi uye hupamhi.100mm gobvu inotonhora yekuchengetera bhodhi inowanzo shandiswa kune yakakwirira uye yepakati tembiricha inotonhora chengetedzo, 120mm kana 150mm gobvu rekuchengetedza bhodhi rinowanzo shandiswa kune yakaderera tembiricha yekuchengetedza uye nechando chengetedzo.
5. Kupisa kwemhepo inopisa mvura ndiyo nzira mbiri dzekupisa uye kupisa kwemvura kunoshandiswa panguva imwe chete, iyo inotarisa zvakanakira zvose, uye inogona kukurumidza uye inobudirira kubvisa chando chechando pamusoro pe evaporator uye kubvisa kuunganidzwa kwemafuta. mukati me evaporator.Painodzima, gasi rinopisa rinotanga kutumirwa muevaporator kuti riparadzanise chando chechando kubva pamusoro peiyo evaporator, uye ipapo mvura inopfapfaidzwa kuti ikurumidze kugeza chando.Mushure mokunge mvura inopera, nzvimbo ye evaporator "yakaomeswa" nemhepo inopisa kuti idzivirire firimu remvura pamusoro pechando uye kukanganisa kupisa kwekushisa.Kare, vagadziri vebhodhi rekuchengetedza kutonhora vainyanya kushandisa polyethylene uye polystyrene semidziyo.Ikozvino pane kuita kurinani kwe polyurethane sandwich board.Polystyrene foam insulation material density yakaderera, haigone kuiswa insulated.Vanowanzo shandiswa mumidziyo yakakosha.Polyethylene yakanaka mbishi zvinhu.Kuburikidza neimwe reshiyo, inogona kupushwa kubva kune yakafanira density, insulation mhedzisiro yakanaka, yakasimba kutakura kugona kweiyo insulation zvinhu.Polyurethane ndiro iri nani, ine zvirinani insulation basa uye haitore unyoro, asi iyi inotonhora yekuchengetera mutengo wakakwira zvishoma.
Nguva yekutumira: Zvita-08-2023