Xhumana Nobudlelwano
Ibhalansi yokushisa yeumjovo isikhuntailawula ukuqhutshwa kokushisa komshini wokubumba umjovo futhi isikhunta siyisihluthulelo sokukhiqiza izingxenye ezibunjiwe zomjovo. Ngaphakathi kwesikhunta, ukushisa okulethwa ipulasitiki (okufana ne-thermoplastic) kudluliselwa ezintweni kanye nensimbi yesikhunta ngemisebe eshisayo, futhi idluliselwe kuketshezi lokudlulisa ukushisa ngokusebenzisa i-convection. Ngaphezu kwalokho, ukushisa kudluliselwa emkhathini kanye nesisekelo sesikhunta ngemisebe eshisayo. Ukushisa okumuncwa uketshezi lokudlulisa ukushisa kuthathwa umshini wokushisa wesikhunta. Ibhalansi eshisayo yesikhunta ingachazwa ngokuthi: P=Pm-Ps. Lapho u-P ewukushisa othathwe umshini wokushisa wesikhunta; I-Pm ukushisa okwethulwa yipulasitiki; Ps ukushisa okukhishwa isikhunta emkhathini.
Izimo zokuqala zokulawula ngempumelelo izinga lokushisa lesikhunta Uhlelo lokulawula izinga lokushisa luqukethe izingxenye ezintathu: isikhunta, isilawuli sokushisa kwesikhunta, noketshezi lokudlulisa ukushisa. Ukuze kuqinisekiswe ukuthi ukushisa kungangezwa noma kukhishwe esikhunjini, ingxenye ngayinye yesistimu kufanele ihlangabezane nalezi zimo ezilandelayo: Okokuqala, ngaphakathi kwesikhunta, indawo engaphezulu yesiteshi sokupholisa kufanele ibe nkulu ngokwanele, futhi ububanzi. womgijimi kumele afane nomthamo wepompo (umfutho wephampu). Ukusatshalaliswa kwezinga lokushisa emgodini kunethonya elikhulu ekuguqulweni kwengxenye kanye nokucindezela kwangaphakathi. Ukusetha okunengqondo kwamashaneli okupholisa kunganciphisa ingcindezi yangaphakathi, ngaleyo ndlela kuthuthukise ikhwalithi yezingxenye ezibunjwe ngomjovo. Ingase futhi inciphise isikhathi somjikelezo futhi yehlise izindleko zomkhiqizo. Okwesibili, umshini wokushisa wesikhunta kufanele ukwazi ukugcina izinga lokushisa loketshezi lokudlulisa ukushisa lingashintshi phakathi kwebanga elingu-1°C kuya ku-3°C, kuye ngezidingo zekhwalithi zezingxenye ezibunjiwe zomjovo. Okwesithathu ukuthi uketshezi lokudlulisa ukushisa kufanele lube ne-conductivity enhle yokushisa, futhi okubaluleke kakhulu, kufanele lukwazi ukungenisa noma ukuthekelisa inani elikhulu lokushisa ngesikhathi esifushane. Ngokombono we-thermodynamic, amanzi angcono ngokucacile kunamafutha.
Isimiso sokusebenza Umshini wokushisa wesikhunta wakhiwe ithangi lamanzi, uhlelo lokufudumeza nokupholisa, uhlelo lokudlulisa amandla, uhlelo lokulawula izinga le-liquid, inzwa yokushisa, imbobo yomjovo nezinye izingxenye. Ngokuvamile, iphampu ohlelweni lokudlulisa amandla lenza uketshezi olushisayo lufinyelele isikhunta kusuka ethangini lamanzi elifakwe i-heater eyakhelwe ngaphakathi kanye ne-cooler, bese lisuka esikhunjini libuyela ethangini lamanzi; inzwa yokushisa ikala izinga lokushisa loketshezi olushisayo futhi idlulisele idatha ku-control part Controller.
Isilawuli silungisa izinga lokushisa loketshezi olushisayo, ngaleyo ndlela silungise ngokungaqondile izinga lokushisa lesikhunta. Uma umshini wokushisa wesikhunta ukhiqizwa, izinga lokushisa lesikhunta lidlula inani elibekiwe lesilawuli, isilawuli sizovula i-valve ye-solenoid ukuxhuma ipayipi lokungena kwamanzi kuze kufike izinga lokushisa loketshezi olushisayo, okungukuthi, izinga lokushisa isikhunta sibuyela enanini elimisiwe. Uma izinga lokushisa lesikhunta liphansi kunenani elibekiwe, isilawuli sizovula i-heater.
Isikhathi sokuthumela: Oct-26-2021