Izici Zomkhiqizo
Izishintshi zokushisa ze-Shell neshubhu ze-PTFE zinezinzuzo eziningi uma ziqhathaniswa nezishintshisi zokushisa zesici sensimbi.
1. Njengoba i-polytetrafluoroethylene (PTFE) iyinto engasebenzi ngamakhemikhali (okubizwa ngokuthi i-F4) futhi inokumelana nokugqwala okuhle, ukumelana nokugqwala kwe-fluoroplastics kwaziwa kahle. Isishintshi sokushisa esiqediwe sisetshenziswe emithonjeni engaphezu kuka-100 ukususa amazinga okushisa aphezulu. Ingasebenza cishe kuyo yonke imidiya ngaphandle kwe-elemental fluorine, izinsimbi ze-alkali ezincibilikisiwe, i-chlorine trifluoride, i-uranium hexafluoride, kanye nophalafini one-perfluorinated.
2. Izakhiwo zokulwa nokungcolisa. Amapayipi epulasitiki e-fluorine anezindawo ezibushelelezi, ukunwetshwa okukhulu kokushisa kanye nokuguquguquka okukhulu, okuwenza abe mancane amathuba okuthi aqongelele isikali futhi enze isendlalelo sesikali. Zinokusimama okuhle kwamakhemikhali kwabezindaba eziningi futhi zinciphisa kakhulu imikhiqizo yokugqwala. noma zinyamalale. Indawo ebushelelezi inezici ezinamandla zokwandisa amanzi, ukunganamatheli kanye ne-coefficient ephansi kakhulu yokungqubuzana, ukuze ukungcola noma isikali esifakwe endaweni yodonga lwamapayipi kuzoncishiswa noma kuqedwe. I-Fluoroplastics ine-coefficient enkulu yokwandisa ukushisa kanye nokuguquguquka okuhle. Amashubhu okushintshanisa ukushisa enziwe ngama-fluoroplastics, ikakhulukazi lapho amashubhu okushintshanisa ukushisa elukiwe abe umumo osontekile, azobangela ukudlidliza kwamashubhu okushintshanisa ukushisa okubangelwa ukunyakaza koketshezi, okubangela ungqimba lwesikali odongeni lweshubhu ukuthi nalo ludlidlizele. awe. Ngenxa yalokho, udonga lwamashubhu lwalesi sishintshi sokushisa luhlala luhlanzekile ngesikhathi sokusebenza isikhathi eside.
3. Usayizi omncane, isisindo esincane kanye nesakhiwo esihlangene. I-thermal conductivity ye-fluoroplastic iphansi, kuphela i-0.19W/m.℃, engu-1/250 wensimbi ye-carbon evamile. Ukuze kuncishiswe ukumelana nokushisa kodonga lwamashubhu futhi kwandiswe inani eliphelele lokudlulisa ukushisa, amashubhu anezindonga ezincane asetshenziswa ngokuvamile. Ukuqinisekisa amandla amashubhu anezindonga ezincane, amashubhu anobubanzi obuncane kufanele asetshenziswe. Ngenxa yokusetshenziswa kwenani elikhulu lamashubhu obubanzi obuncane, indawo yokudlulisa ukushisa ngevolumu yeyunithi inkulu. Isibonelo: Uma kuqhathaniswa nesisindo nevolumu yesishintshi sokushisa esingu-10-square-metres se-PTFE kanye nesishintshi sokushisa se-graphite yensimbi noma engeyona eyensimbi, isishintshi sokushisa se-PTFE cishe sicishe sibe ngu-1/2 kokunye kokubili. Kungabonakala ukuthi lolu hlobo lokushintshanisa ukushisa lungaba luncane ngosayizi nokukhanya ngesisindo, ngaleyo ndlela lulondoloze izindleko zokuhamba, ukufakwa kanye nokusebenza.
4. Ukuzivumelanisa nezimo okuqinile. Ngenxa yokuthi ipayipi le-fluoroplastic lithambile, linempilo yokumelana nokukhathala okugobayo izikhathi ezingaphezu kwezingu-100,000, namandla okuthonya angu-1.09J/cm³ ku--57 degrees kanye no-1.63J/cm³ kuma-degree angu-23, inqwaba yeshubhu ingenziwa edingekayo okuhlukahlukene. izimo ezikhethekile. , futhi isebenze ngokwethembeka isikhathi eside ngaphansi kwezimo zokuthinta uketshezi nokudlidliza. Lokhu kunzima ukukufeza ngezinye izinto ezimelana nokugqwala njengegraphite, ingilazi, izitsha zobumba nezinsimbi ezingavamile.
5. Impilo ende yesevisi nokugcinwa kalula. Inkampani yethu inesisekelo esihle kanye nokwenza ngcono ocwaningweni nasekuthuthukisweni kwezishintshi zokushisa ze-fluoroplastic. Izingxenye ezijwayele ukuguga kanye nokugqwala emazingeni okushisa ziye zathuthukiswa kancane kancane isinyathelo ngesinyathelo, futhi ezasekuqaleni ziye zathuthukiswa. Ngokusekelwe kulokhu, sizothuthukela ngokwengeziwe ukuze sivumelane kangcono namakhasimende ethu. Kuze kube manje, abakhiqizi abaningi basebenzise izishintshi zokushisa ze-PTFE iminyaka engaphezu kwengu-5. Ngale ndlela, ingxenye enkulu yezindleko igcinwa kusishintshisi sokushisa sodwa. . Okwesibili, isishintshi sokushisa se-PTFE kulula ukusinakekela. Uma ukuvuza kwenzeka ngesikhathi sokusetshenziswa, kungalungiswa futhi kuhlolwe ingcindezi ngqo esizeni. Lokhu kusindisa amakhasimende isikhathi sokubuya nokubuya sokubuyela efekthri ukuze alungiswe kanye nokulahlekelwa ukukhiqizwa okubangelwa indawo yokupaka, okunzima ukuyithola ngezinye izishintshisi zokushisa.
6. Izindleko ziyinhloso. Nakuba ama-fluoroplastics njengama-elementi okudlulisa ukushisa asabiza okwamanje, kusetshenziswa amashubhu anezindonga ezincane ezinobubanzi obuncane, i-coefficient yokudlulisa ukushisa iyonke ingaba phezulu njengo-500W/㎡.℃. Lokhu kungenziwa ngobuningi ngaphansi kwezimo zenqubo yokukhiqiza eziphelele. Uhlobo lwesishintshi sokushisa, futhi okubaluleke nakakhulu, ukumelana nokugqwala okuphezulu kungashintsha izinsimbi ezingavamile, ngaleyo ndlela kulondoloze inani elikhulu lokusetshenziswa kwensimbi engavamile. Ukwengeza, ngenxa yezinzuzo zokumelana nokugqwala kanye nokumelana okungalungile kwama-fluorine okushintshanisa ukushisa kwepulasitiki, ezinye izinzuzo zezomnotho zingatholakala ngesikhathi sokusetshenziswa. Ngakho-ke, kucatshangelwa izici ezifana nokukhiqiza, ukufakwa, ukusebenza nokugcinwa, izindleko zangempela ziphansi.
Izinzuzo ezingenhla ziqinisekiswe ngokugcwele yi-fluoroplastic heat exchanger esetshenziswa ekukhiqizeni izimboni, futhi isetshenziswe kabanzi emithonjeni ehlukahlukene yangaphandle.
