Lapho isitimu siphuma kubhayela ngomfutho omkhulu bese sithuthwa siyiswa endaweni yesitimu yemishini ngayinye, ukulawulwa kokuwohloka kwemishini ngokuvamile kuyenziwa.Kungani i-steam idinga ukucindezelwa?Izizathu eziyinhloko yilezi:
1. I-boiler ngokuvamile ikhiqiza isitimu esinomfutho ophezulu, onganciphisa ubukhulu be-boiler, unciphise ukuvela kwesitimu esimanzi, uthuthukise ukoma kwe-steam, futhi wenze izinto zokuhamba ezikude.
2. Kubangelwa ukushintsha komthamo wesitimu.Ukuminyana kwesitimu kuphezulu ngomfutho omkhulu.Ipayipi lobubanzi obufanayo lingathutha isitimu esinomfutho ophezulu ngaphezu kwesitimu esinomfutho ophansi.Ukusetshenziswa kokudluliswa kwesitimu esinomfutho ophezulu kuzonciphisa ubukhulu bepayipi futhi konge izindleko.
3. Isenzakalo sokujiya senzeka lapho kusetshenziswa isitimu.Isitimu esincishisiwe sinciphisa ukucindezela kwamanzi ajiyile ukuze kugwenywe ukulahlekelwa isitimu esikhanyayo lapho amanzi ajiyile ekhishwa, futhi ukulahlekelwa kwamandla kwamanzi ajiyile akhishelwa ngaphansi kwengcindezi ephansi kuncane.
4. Njengoba izinga lokushisa nokucindezela kwesitimu esigcwele kuhambisana, i-valve yokunciphisa ingcindezi izofakwa enqubweni yokuvala inzalo kanye nokulawulwa kokushisa okungaphezulu kwesomisi sephepha ukuze kulawuleke ukucindezela, ngaleyo ndlela kulawulwa izinga lokushisa lemishini yenqubo.
5. Imishini yenqubo inengcindezi yokuklama yayo.Lapho ingcindezi yesitimu enikeziwe idlula isidingo sesistimu yenqubo, idinga ukucindezelwa.Uma amanye amasistimu esebenzisa amanzi ajikijelwe ngomfutho ophezulu ukuze akhiqize isitimu esinengcindezi ephansi, inhloso yokonga iyafinyelelwa.Uma i-flash steam ekhiqiziwe inganele, kuyadingeka ukukhiqiza isithasiselo se-steam esinengcindezi ephansi ngokusebenzisa i-valve yokunciphisa ingcindezi.
6. Umthwalo we-steam we-boiler ungancishiswa ngoba i-enthalpy ye-steam iphakeme ngokucindezela okuphansi.Inani le-enthalpy ngu-1839kJ/kg ku-2.5MPa kanye no-2014kJ/kg ku-1.0MPa.Ngakho-ke, umusi womfutho ophansi ulungele ukusetshenziswa kwemishini.
Ukuze kusetshenziswe ama-valve okunciphisa umfutho we-steam, abasebenzisi bakhathazeke kakhulu ngokuthi bangawasebenzisa kanjani kahle nokuthi bangahlangabezana kanjani nezidingo zangempela zemishini yokufaka isicelo.Okokuqala, udinga ukuqonda izigaba eziyisisekelo zama-valve okunciphisa umfutho we-steam kanye nezinzuzo zawo kanye nokubi.
Isikhathi sokuthumela: Sep-14-2022