Ngokuvamile, ukuze kuqinisekiswe ukusebenza kahle kokushisisa nokunciphisa isikhawu sokuvala inzalo, lapho izinga lokushisa liphezulu lokuvala inzalo, isikhathi esidingekayo sokuvala inzalo siba sifushane. Kuvame ukuba nezinga elithile le-inhomogeneity ekutholeni izinga lokushisa lomusi. Ngesikhathi esifanayo, kukhona i-hysteresis ethile kanye nokuphambuka ekutholeni izinga lokushisa. Uma kucatshangelwa ukuthi izinga lokushisa nokucindezela kwesitimu esigcwele kubonisa ukuxhumana okukodwa kuya koyedwa, uma kuqhathaniswa, ukutholwa komfutho wesitimu kufana kakhulu futhi kuyashesha. , ngakho-ke ingcindezi yesitimu yokuvala inzalo ye-sterilizer isetshenziswa njengesisekelo sokulawula, futhi ukutholwa kwezinga lokushisa lokuvala inzalo kusetshenziswa njengesiqinisekiso sokuphepha.
Ezisetshenziswa ezingokoqobo, izinga lokushisa lesitimu kanye nezinga lokushisa lokuvala inzalo ngezinye izikhathi kuyahluka. Ngakolunye uhlangothi, lapho umusi uqukethe amanzi ajiyile angaphezu kuka-3% (ukoma kungu-97%), nakuba izinga lokushisa lomusi lifinyelela izinga, ngenxa yokuvinjwa kokudluliselwa kokushisa ngamanzi ajiyile asakazwa phezu kwesimusi, emkhiqizweni, umusi udlula ekushiseni kwefilimu yamanzi ajikisiwe uzokwehla. Nciphisa kancane kancane ukuze izinga lokushisa langempela lokuvala inzalo lomkhiqizo libe phansi kunemfuneko yokushisa yokuvala inzalo. Ikakhulukazi amanzi okubhayela athwalwa ibhoyili, ikhwalithi yawo yamanzi ingase ingcolise umkhiqizo owenziwe inzalo. Ngakho-ke, ngokuvamile kuphumelela kakhulu ukusebenzisa i-Watts DF200 isihlukanisi samanzi esitimu esisebenza kahle kakhulu endaweni yokungenisa umusi.
Ngakolunye uhlangothi, ukuba khona komoya kunomphumela owengeziwe ekushiseni inzalo kwesitimu. Lapho umoya ekhabetheni ungasusiwe noma ungasusiwe ngokuphelele, ngakolunye uhlangothi, ukuba khona komoya kuzokwakha indawo ebandayo, ukuze imikhiqizo enamathiselwe emoyeni ayikwazi ukufakwa inzalo. amagciwane lokushisa. Ngakolunye uhlangothi, ngokulawula umfutho womhwamuko ukuze ulawule izinga lokushisa, ukuba khona komoya kudala ukucindezela okuncane. Ngalesi sikhathi, ingcindezi eboniswa esikalini sokucindezela ingcindezi ephelele yegesi exutshwe, futhi umfutho wangempela wesitimu uphansi kunesidingo sokucindezela isitimu sokuvala inzalo. Ngakho-ke, izinga lokushisa lesitimu alihlangabezani nemfuneko yokushisa yokuvala inzalo, okuholela ekuhlulekeni kokuvala inzalo.
I-steam superheat iyisici esibalulekile esithinta ukuvalwa kwe-steam, kodwa ngokuvamile akunakwa. I-EN285 idinga ukuthi ukushisa okuphezulu kwesitimu sokuvala inzalo akufanele kudlule ku-5°C. Umgomo wokuvala inzalo ye-steam egcwele ukuthi umusi uyajiya lapho umkhiqizo ubanda, ukhulula inani elikhulu lamandla okushisa acashile, okwandisa izinga lokushisa lomkhiqizo; lapho ijiya, ivolumu yayo incipha kakhulu (1/1600), futhi ingaphinda ikhiqize ukucindezela okungekuhle kwasendaweni, yenze isitimu esilandelayo Singene sijule phakathi kwento.
Izakhiwo zesitimu esishisa kakhulu zilingana nomoya owomile, kodwa ukusebenza kahle kokudlulisa ukushisa kuphansi; ngakolunye uhlangothi, lapho umusi oshisa kakhulu ukhulula ukushisa okunengqondo futhi izinga lokushisa lehla ngaphansi kwendawo yokugcwala, ukufingqa akwenzeki, futhi ukushisa okukhishwe ngalesi sikhathi kuncane kakhulu. Ukudlulisa ukushisa akuhlangabezani nezimfuneko zokuvala inzalo. Lesi simo sibonakala lapho ukushisa okweqile kudlula u-5°C. Isitimu esishiswe ngokweqile singabangela ukuthi izinto ziguge ngokushesha.
Uma isitimu esisetshenzisiwe siyisitimu senethiwekhi yokushisa esisetshenziselwa ukukhiqiza amandla, sona ngokwaso sishisisa kakhulu. Ezimweni eziningi, ngisho noma i-boiler ezimele ikhiqiza isitimu esigcwele, ukuwohloka kwesitimu phambi kwesibulala-magciwane kuwuhlobo lokunwetshwa kwe-adiabatic, okwenza isitimu sangempela esigcwele sibe isitimu esishisa kakhulu. Lo mphumela uba sobala uma umehluko wengcindezi udlula ibha engu-3. Uma ukushisa okuphezulu kungaphezu kuka-5 ° C, kungcono ukusebenzisa i-Watt water saturated steam device ukuze uqede ukushisa okukhulu ngesikhathi.
Idizayini yesitimu yesibulala-magciwane ihlanganisa indawo yokungenisa umusi enesihlungi sesitimu esikhulu, isihlukanisi samanzi esitimu esisebenza kahle kakhulu, ivalvu elawula umfutho wesitimu kanye nesicupho sesitimu.