Indlela yokukhetha imodeli yepayipi ye-steam efanele
Inkinga evamile njengamanje ukukhetha ipayipi lokuthutha isitimu ngokuya ngobubanzi besixhumi esibonakalayo sezinto zokusebenza ezixhunyiwe.Kodwa-ke, izici ezibucayi ezifana nokucindezela kokulethwa kanye nekhwalithi yomusi wokulethwa ngokuvamile azinakwa.
Ukukhethwa kwamapayipi omusi kufanele kudlule ngezibalo zobuchwepheshe nezomnotho.Okuhlangenwe nakho kukaNobeth kubonise ukuthi ukukhetha okungalungile kwamapayipi omusi kungaholela ezinkingeni eziningi.
Uma ukukhetha kwepayipi kukukhulu kakhulu, khona-ke:
Izindleko zamapayipi ziyakhuphuka, zikhuphule ukufakwa kwamapayipi, ukwandisa ububanzi be-valve, ukwandisa ukusekelwa kwamapayipi, ukwandisa umthamo, njll.
Izindleko zokufaka ezengeziwe nesikhathi sokwakha
Ukwanda kokwakheka kwe-condensate
Ukwenyuka kwamanzi ajiyile kuzodala ukwehla kwekhwalithi yesitimu kanye nokwehla kokusebenza kahle kokudlulisa ukushisa
· Ukulahlekelwa ukushisa okwengeziwe
Isibonelo, ukusebenzisa ipayipi le-steam engu-50mm kungathutha isitimu esanele, uma usebenzisa ipayipi elingu-80mm, izindleko zizokwenyuka ngo-14%.Ukulahleka kokushisa kwepayipi lokufakelwa elingu-80mm kungu-11% ngaphezu kwalokho kwepayipi lokufakelwa elingu-50mm.Ukulahleka kokushisa kwepayipi elingagqunyiwe elingu-80mm kungu-50% ngaphezu kwalokho kwamapayipi angafakwanga ama-50mm.
Uma ukukhetha kwepayipi kukuncane kakhulu, khona-ke:
·Izinga eliphezulu lokugeleza kwesitimu likhiqiza ukwehla komfutho wesitimu, futhi lapho indawo yokusetshenziswa kwesitimu ifinyelelwa, ukucindezela ayanele, okudinga umfutho we-boiler.
Isitimu esinganele endaweni yesitimu, isishintshi sokushisa asinawo umehluko owanele wokudlulisa ukushisa, futhi ukuphuma kokushisa kuyehla
·Izinga lokugeleza komusi liyakhuphuka, kulula ukukhiqiza i-scour nesando samanzi
I-caliber yepayipi ingakhethwa ngenye yezindlela ezimbili ezilandelayo.:
·Indlela yesivinini
·Indlela yokwehlisa ingcindezi
Kungakhathaliseki ukuthi iyiphi indlela esetshenziselwa ukulinganisa, enye indlela kufanele isetshenziselwe ukuhlola izincomo zokugeleza kwamanzi ukuze kuqinisekiswe ukuthi umkhawulo aweqiwa.
Ukulinganisa kokugeleza kusekelwe ekugelezeni kwepayipi okulingana nomkhiqizo wendawo enqamula ingxenye yepayipi kanye nokugeleza (khumbula ivolumu ethile iyahlukahluka ngokucindezela).
Uma sazi ukugeleza kwenqwaba nokucindezela kwesitimu, singabala kalula ukugeleza kwevolumu (m3/s) yepayipi.Uma sinquma isivinini sokugeleza esamukelekayo (m/s) futhi sazi nevolumu yesitimu esilethiwe, singabala indawo edingekayo enqamula ingxenye yepayipi (ububanzi bepayipi).
Eqinisweni, ukukhetha ipayipi akulungile, inkinga inkulu kakhulu, futhi lolu hlobo lwenkinga ngokuvamile alutholakali kalula, ngakho ludinga ukunakwa ngokwanele.