Kuyini i-Scraped Surface Heat Exchanger?

Kuyini i-Scraped Surface Heat Exchanger?

I-Scraped Surface heat exchanger: Isimiso, ukusetshenziswa kanye nentuthuko yesikhathi esizayo

I-scraped heat exchanger iwuhlobo lwemishini yokushintshanisa ukushisa esebenza kahle, edlala indima ebalulekile embonini yokudla, yamakhemikhali, yezemithi kanye neminye. Ngesakhiwo esiyingqayizivele semishini kanye nemodi yokusebenza, lolu hlobo lwe-heat exchanger luxazulula inkinga ye-heat exchanger yendabuko ekubhekaneni nokuthamba okuphezulu kanye nezinto ezilula ukuzilinganisa. Leli phepha lizohlaziya ngokuphelele i-scraper heat exchanger, imishini ebalulekile yezimboni, kusukela ezicini zesimiso sokusebenza, izici zesakhiwo, amasimu okusetshenziswa kanye nemikhuba yentuthuko yesikhathi esizayo.

 Okokuqala, isimiso sokusebenza kanye nesakhiwo se-scraped surface heat exchanger

Umgomo oyinhloko wokusebenza kwesishintshi sokushisa esingaphezulu esiklwebhekile ukuklwebha njalo indawo yokushintshanisa ukushisa ngokujikeleza isiklwebhe ukuze kufezwe ukudluliselwa kokushisa okuphumelelayo. Isakhiwo esiyisisekelo sihlanganisa umzimba wesishintshi sokushisa esiyindilinga, umshafti ojikelezayo, ukuhlanganiswa kwesiklwebhe, idivayisi yokushayela kanye nohlelo lokuvala. Umzimba wesishintshi sokushisa uvame ukuba yisakhiwo esinezingqimba ezimbili, kanti indawo yokushisa noma yokupholisa idluliselwa phakathi. Umshafti ojikelezayo uhlonyiswe ngeziklwebhe eziningi, eziseduze nodonga lwangaphakathi lwesilinda ngaphansi kwesenzo samandla e-centrifugal futhi ziklwebha njalo indawo yokudlulisa ukushisa ngokujikeleza komshafti.

 Ngesikhathi senqubo yokusebenza, izinto ezizophathwa zingena ku-heat exchanger zisuka engxenyeni engenhla bese zigeleza odongeni lwangaphakathi lwesilinda ngaphansi kwesenzo samandla adonsela phansi. I-rotary scraper ayidlali nje indima yokuxuba, kodwa okubaluleke kakhulu, ivuselela njalo ifilimu yezinto eziku-heat transfer surface ukuze ivimbele izinto ukuthi zingabi manzi noma zikhule endaweni eshisa kakhulu. Le ndlela yokuvuselela ifilimu enamandla ivumela ama-scrape heat exchangers ascraped ukuthi afinyelele ukusebenza kahle kokudlulisa ukushisa okuphezulu kakhulu, ngokuvamile kuze kube izikhathi ezi-3-5 kune-heat exchangers evamile.

 Ingxenye ebalulekile yesishintshi sokushisa komhlaba esikrwelwe uhlelo lokukrwela, oluklanywe ngalo ngqo ukusebenza kwemishini. Izishintshi zokushisa komhlaba zesimanje ezikrwelwe kakhulu zisebenzisa isikrwela esilungisekayo, ngokusebenzisa amandla entwasahlobo noma e-centrifugal ukulungisa ingcindezi yokuxhumana phakathi kwesikrwela nodonga lwesilinda, hhayi nje ukuqinisekisa umphumela omuhle wokukrwela, kodwa futhi nokugwema ukuguguleka ngokweqile. Uhlelo lokuvala luyingxenye ebalulekile, kokubili ukuvimbela ukuvuza kwezinto, kodwa futhi nokuqinisekisa ukusebenza kahle komgodi ojikelezayo.

 

Okwesibili, izinzuzo zobuchwepheshe kanye nemikhawulo ye-scraped surface heat exchanger

Inzuzo ebaluleke kakhulu ye-scraper heat exchanger yikhono layo lokuphatha izinto eziqinile kakhulu nezizwela ukushisa. Emkhakheni wokucubungula ukudla, njengokukhiqizwa kwe-puff pastry margarine, ushokoledi, ujamu, ushizi neminye imikhiqizo, i-heat exchanger yendabuko kunzima ukuhlangabezana nezidingo zenqubo, futhi i-scraper heat exchanger ingaxazulula ngokuphelele lezi zinkinga. I-coefficient yayo yokudlulisa ukushisa ingafinyelela ku-2000-5000W/(m²·K), ephakeme kakhulu kune-shell and tube heat exchanger evamile.

 

Uma usebenzisana nezinto ezilula ukuzilinganisa, izinzuzo ze-scraper heat exchanger zisobala kakhulu. Embonini yamakhemikhali kaphethroli, uwoyela osindayo, i-asphalt nezinye izinto kulula ukuzicola ebusweni bokudlulisa ukushisa ngesikhathi senqubo yokushisa, futhi ama-heat exchanger endabuko adinga isikhathi sokuphumula njalo ukuze ahlanzwe. I-scraper heat exchanger ngomphumela wokucola oqhubekayo, ivimbela ngempumelelo lesi simo sokucola, yandisa kakhulu isikhathi sokusebenza esiqhubekayo.

 

Kodwa-ke, ama-heat exchanger akhuhliwe angaphezulu nawo anemikhawulo ethile. Eyokuqala izindleko eziphezulu zemishini, ngenxa yesakhiwo sayo esiyinkimbinkimbi semishini kanye nezidingo zokucubungula ngokunemba, ukutshalwa kwezimali kokuqala kukhulu kakhulu kune-heat exchanger evamile. Okwesibili, izindleko zokulungisa ziphakeme, kanti i-scraper kanye ne-seal kuyizingxenye ezisengozini futhi zidinga ukushintshwa njalo. Ngaphezu kwalokho, lapho kukhulunywa ngezinto ezinciphile, izinzuzo zazo azibonakali, kodwa zingase zandise ukusetshenziswa kwamandla ngenxa yokuxubana kwemishini.

 

Okwesithathu, insimu yesicelo kanye nokuthuthukiswa kwesikhathi esizayo kwe-scraped surface heat exchanger

Embonini yokudla, ama-scraper heat exchanger asetshenziswa kabanzi ekushiseni ushokoledi, ukubulala inzalo ngejamu, ukwakheka kwe-bhotela kanye nezinye izinqubo. Isibonelo, ekukhiqizweni koshokoledi, izinto ezisetshenziswayo zidinga ukulawulwa ngokunembile ngaphakathi kwebanga elithile lokushisa ukuze kulawulwe izinga lokushisa, futhi i-scraper heat exchanger ingafinyelela ukulawula izinga lokushisa okunembile kanye nokushintshana kokushisa okufanayo ukuqinisekisa ikhwalithi yomkhiqizo.

 

Emkhakheni wezimboni zamakhemikhali, ama-scraper heat exchanger asetshenziswa kakhulu ekukhiqizweni kwe-polymer, ekufudumaleni kwamafutha anzima nakwezinye izinqubo. Ekukhiqizweni kwe-polymer, i-viscosity yezinto iyashintsha ngenqubo yokusabela, okunzima ukuyivumelanisa ne-heat exchanger yendabuko, kodwa i-scraper heat exchanger ingahlala igcina ukudluliselwa kokushisa okuphumelelayo. Enkambisweni yokuhluza uphethiloli, i-scraper heat exchanger isetshenziselwa ukushisa uwoyela onzima, i-asphalt nezinye izinto, okuxazulula inkinga yokupheka.

 

Esikhathini esizayo, ukuthuthukiswa kwezishintshi zokushisa ezikhuhliwe kuzothuthuka ngokuya ngobuhlakani, ukusebenza kahle okuphezulu kanye nemisebenzi eminingi. Ngokuphathelene nobuhlakani, izinzwa eziningi kanye nezinhlelo zokulawula zizohlanganiswa ukuze kufezwe ukuqapha ngesikhathi sangempela kanye nokulungiswa okuzenzakalelayo kwamapharamitha okusebenza. Ukuthuthukiswa kwesayensi yezinto kuzoletha izinto ezintsha ezingagugi kakhulu futhi ezingagqwali futhi kwandise impilo yenkonzo yemishini. Ngaphezu kwalokho, ukwakheka kwemodyuli kuzoba yindlela yokwenza lula ukugcinwa nokuthuthukiswa kwemishini.

 

Njengohlobo lwemishini yokushintshanisa ukushisa esebenza kahle, i-scraper heat exchanger idlala indima engenakuphindwa ekukhiqizweni kwezimboni zanamuhla. Ngokuqhubeka kwezobuchwepheshe, insimu yayo yokusetshenziswa izokwandiswa kakhulu, futhi ukusebenza kwayo kuzoqhubeka nokuthuthuka. Esikhathini esizayo, i-scraper heat exchanger izoba negalelo elikhulu ekongeni amandla nasekunciphiseni ukukhishwa komoya, ithuthukise ukusebenza kahle kokukhiqiza, futhi inikeze ukwesekwa okuqinile kwentuthuko esimeme yokukhiqiza kwezimboni.