Izithelo zibola kalula futhi zidinga ukulawulwa okunembile kokushisa ukuze zihlale zintsha, izithelo zekhwalithi ephezuluamakamelo abandayokungadala indawo ekahle ebambezela ukuvuthwa futhi inciphise ukubola. Kusiza abalimi, abasabalalisi, kanye nabathumela kwamanye amazwe ukuba bandise isikhathi sokuphila kwezithelo ezahlukahlukene.
Uhlobo ngalunye lwesithelo ludinga izinga lokushisa elithile kanye nomswakama ukuze kugcinwe ukuthungwa kanye nobumnandi. Ikakhulukazi kwezinye izithelo ezinenani eliphezulu njenge-kiwi kanye ne-cherry, indawo yokugcina ebanda esezingeni eliphezulu ibaluleke kakhulu. Ngoba indawo yokugcina efanele ingagcina isithelo sisha isikhathi eside. Ngesikhathi esifanayo, ingalawula izinga lokuvuthwa kwezithelo kanye nokusatshalaliswa kwazo, iqinisekise ukuthi isithelo sifinyelela ukunambitheka okuhle kakhulu ngesikhathi sokugcina, futhi inikeze abathengi ulwazi oluhle kakhulu.
Aigumbi elibandayo elakhiwe kahleilinganisela amandla okupholisa, ukujikeleza komoya, kanye nokuvikela ukushisa. Ukwakheka okufanele kuvimbela ukulahleka komswakama kanye nokukhula kwesikhunta. Ngomthamo ofanele wokuqandisa, izithelo zingahlala zilungele imakethe amasonto.
Ukulawula Izinga Lokushisa
Izinga lokushisa lithinta ngqo ukusha kanye nokuphila kweshelufu kwezithelo. Isithelo ngasinye sinezinga lokushisa elifanele lokugcina. Ama-apula, amagilebhisi, namapheya agcina kahle kakhulu phakathi kuka-0°C no-2°C. Ubhanana, umango, nama-papaya adinga amazinga okushisa aphezulu azungeze u-12°C kuya ku-14°C. Izithelo ze-citrus ezifana namawolintshi nolamula zikhetha cishe u-4°C kuya ku-8°C.
Uma zigcinwe zibanda kakhulu, ezinye izithelo ziyalimala ngenxa yokubanda. Ubhanana uba mnyama, kanti umango uveza amabala. Uma izinga lokushisa likhuphuka kakhulu, ukuphefumula kanye nokukhiqizwa kwe-ethylene kuyakhula. Lokhu kusabela kubangela ukuvuthwa okusheshayo kanye nokonakala. Igumbi elibandayo lezithelo kumele ligcine amazinga okushisa azinzile ukuze kugwenywe lezi zinkinga.
Uhlelo ludinga izilawuli zedijithali kanye nezinzwa ukuze kulawulwe kahle. Lawa mathuluzi athola izinguquko zokushisa ngokushesha futhi alungise ukusebenza kwe-compressor. Ukushintshashintsha okungazelelwe kuholela ekuvundeni, ekukhuleni kwesikhunta, nasekulahlekelweni kokunambitheka. Ukupholisa okuzinzile kugcina okuqukethwe komswakama kulinganisela futhi kuvimbela ukuphelelwa amanzi emzimbeni.
Ukugeleza komoya ngaphakathi kwegumbi elibandayo nakho kubalulekile. Ukugeleza komoya okungekuhle kudala ukupholisa okungalingani. Amafeni kufanele asabalalise umoya ngokulinganayo endaweni yokugcina. Ibhokisi ngalinye lezithelo kumele lithole umoya obandayo oqhubekayo ngaphandle kokuqhuma okuqondile okubangela ukubanda komhlaba.
Abanye abaqhubi basebenzisa ukuhlukaniswa kwezindawo zokugcina izithelo eziningi. Isibonelo, ingxenye eyodwa igcina u-1°C wama-apula, kanti enye igcina u-10°C wama-citrus. Izindawo ezihlukene zisiza ukulawula izinhlobo ezahlukene zezithelo ngempumelelo. Ukuphathwa kahle kwezinga lokushisa kuqinisekisa ukusha kwesikhathi eside, ukugcinwa kombala, kanye nokulondolozwa kokunambitheka kwemvelo.
Khetha Imishini Efanele Yokuqandisa
Amandla ehhashi (HP) emishini yokuqandisa achaza ukuthi igumbi elibandayo lingapholisa ngokushesha kangakanani futhi ligcine izinga lokushisa. I-HP efanele iqinisekisa ukusebenza okuzinzile ngaphandle kokuchitha amandla. I-HP enganele iholela ekupholiseni okuhamba kancane kanye nokushisa okungalingani. I-HP eningi kakhulu inyusa izindleko futhi ingase yomise izithelo ezibucayi.
Izici eziningana zithinta ukukhethwa kwe-HP. Usayizi wegumbi, ukujiya kokushisa, umthamo wokulayisha, kanye nokushisa okuqondiwe kumele kubalwe. Kwigumbi elincane lokugcina ama-apula elingama-10 m³, i-compressor engu-2 HP ivame ukufaneleka. Igumbi elibandayo elingama-30 m³ lingadinga cishe ama-5 HP. Kwindawo yokugcina enkulu yezentengiselwano engaphezu kwe-100 m³, uhlelo lwe-10–15 HP lungaba luhle kakhulu.
Uhlobo lwe-compressor luphinde luthinte ukusebenza kahle. Ama-scroll compressor asebenza kahle ezinhlelweni ezincane neziphakathi ngenxa yokusebenza okuthule kanye nokusetshenziswa kwamandla aphansi. Ama-semi-hermetic noma ama-screw compressors afanelana nezindawo ezinkulu ezisebenza njalo.
Izimo zendawo nazo zibalulekile. Igumbi elibandayo elisezindaweni ezishisayo lidinga i-HP eyengeziwe ukuze liphathe imithwalo yokushisa yangaphandle. Umthamo owengeziwe ongu-10–15% uqinisekisa ukusebenza okuzinzile ehlobo. Ama-compressor e-inverter angalungisa ngokuzenzakalelayo isivinini ukuze sihambisane nomthwalo, onge amandla afinyelela ku-25%.
I-condenser kanye ne-evaporator kumele kufane nomphumela we-compressor. Ama-coil amakhulu angabangela i-frosting, kuyilapho ama-coil amancane ehlisa umphumela wokupholisa. Ukukhetha okufanele kwe-refrigerant, njenge-R404A noma i-R507, kuqinisekisa ukulawulwa kokushisa okuthembekile.
Isibonelo, igumbi lokubanda lezithelo elingamamitha angu-50 elakhelwe ukugcina okuxubile kusuka ku-2°C kuya ku-12°C livame ukusebenzisa uhlelo lwe-7.5 HP. Lingapholisa umthwalo wezithelo ongamathani angu-5 zingakapheli imizuzu engama-30-40. Ukulinganisela izidingo ze-HP, ukuvikela ukushisa, kanye nokushisa kuqinisekisa ukusebenza kahle okuphezulu, ukusetshenziswa kwamandla aphansi, kanye nokusha kwezithelo isikhathi eside.
Imininingwane Yokunaka Nokwakha Umklamo
Amakamelo okubanda ezithelo adinga ukwakheka okucatshangelwe kahle ukuze kugcinwe izithelo zintsha futhi ziphephile. Ukuvikela okuhle kubalulekile. Amaphaneli e-Polyurethane (PU) noma e-polyisocyanurate (PIR) ayizinto ezikhethwayo. Lawa maphaneli anciphisa ukukhuphuka kokushisa futhi agcina amazinga okushisa angaphakathi ezinzile. Ukuze kugcinwe izithelo, amaphaneli anobukhulu obungu-100 mm kuya ku-150 mm asebenza kahle kakhulu.
Iminyango kumele ivalwe kahle ukuze kuvinjelwe ukungena komoya ofudumele. Iminyango eshelelayo noma ejikijelwayo enezimbobo ezisebenza ngogesi kusiza ekugcineni ukufudumala. Ukufaka amakhethini e-PVC strip kwengeza ungqimba olwengeziwe lokuvikela. Iphansi kufanele limelane nomswakama futhi lisekele amabhokisi ezithelo asindayo. Izembozo ezingasheleli nezigezwayo zithuthukisa inhlanzeko nokuphepha.
Ukulawula umswakama kungenye into ebalulekile. Izithelo eziningi zidinga umswakama ophakathi kuka-85% no-95%. Ama-humidifier afanele kanye nezinhlelo zokuncibilikisa iqhwa zivimbela ukulahleka kwamanzi nokushwabana. Uhlelo lokungenisa umoya oluklanywe kahle lusiza ukususa i-carbon dioxide eningi kanye negesi ye-ethylene. Lawa magesi asheshisa ukuvuthwa uma engalawulwa.
Ukukhanyisa kufanele kukhiqize ukushisa okuncane. Izibani ze-LED zigcina amandla futhi zivikele izithelo ekucindezelekeni kokushisa. Izindawo zangaphakathi kufanele zibe bushelelezi futhi kube lula ukuzihlanza ukuze kugwenywe ukwakheka kwamagciwane. Amashalofu ensimbi engagqwali noma ama-pallet epulasitiki athuthukisa ukuhamba komoya kanye nokuhlanzeka.
Uhlelo lokulawula kufanele lubonise izinga lokushisa kanye nomswakama ngesikhathi sangempela. Abalawuli abahlakaniphile bavumela ukuqapha okude ngamafoni noma amakhompyutha. Lokhu kusiza opharetha ukuba baphendule ngokushesha ezinguqukweni zesistimu.
Ngaphambi kokwakha, onjiniyela babala umthwalo wokushisa ophelele osuka ezindongeni, eminyango, ezibani, nasezithelo. Ukuhlaziywa komthwalo ofanele kuqinisekisa ukukhethwa okunembile kwezingxenye ze-HP kanye neziqandisi. Igumbi lokubanda lezithelo eliklanywe kahle linciphisa ukusetshenziswa kwamandla, ligcina ukubukeka, futhi landisa isikhathi sokuphila kweshelufu lezithelo kakhulu.
Amakamelo okubanda ezithelo abalulekile ekulondolozeni ukunambitheka, ukuthungwa, kanye nokudla okunempilo ngemva kokuvuna. Ukulawulwa kokushisa okufanele, amandla anele okuqandisa, kanye nomklamo ocophelelayo kuzenza zisebenze kahle futhi zithembeke. Njengoba ukuhweba ngezithelo emhlabeni wonke kukhula, indawo yokugcina ebanda ehlelwe kahle iba yinto ebaluleke kakhulu.
Isikhathi sokuthunyelwe: Novemba-03-2025