IMPENDULO: Ukonga ugesi ohlelweni lwesitimu kubonakala kuyo yonke inqubo yokusebenzisa isitimu, kusukela ekuhleleni nasekuklanyweni kwesistimu yesitimu kuya ekunakekeleni, ekuphathweni nasekuthuthukisweni kwesistimu yesitimu. Kodwa-ke, ukonga amandla kuma-boilers we-steam noma amajeneretha e-steam ngokuvamile kuba nomthelela omkhulu ezinhlelweni ze-steam.
Enkambweni yokukhiqiza umusi, into yokuqala okufanele uyenze ukukhetha i-boiler eyenziwe kahle. Ukusebenza kahle kwe-boiler kufanele kube ngaphezu kwama-95%. Kufanele wazi ukuthi kuvame ukuba negebe elikhulu phakathi kokusebenza kahle komklamo nokusebenza kahle kwangempela komsebenzi. Ezimweni zangempela zokusebenza, imingcele kanye nezimo zokuklama zesistimu ye-boiler ngokuvamile kunzima ukuhlangabezana nayo.
Kunezindlela ezimbili eziyinhloko zokumosha amandla kubhayela. Sebenzisa idivayisi ye-boiler flue gas yokutakula ukushisa ukuze ubuyisele ngokuphumelelayo ukushisa kwemfucuza (ukushisa kwegesi ye-flue), futhi usebenzise okunye ukushisa kwemfucuza yezinga eliphansi ukuze ukhuphule izinga lokushisa lamanzi okuphakelayo kanye nezinga lokushisa lokushisa komoya.
Nciphisa futhi ulawule inani lokuthuthwa kwendle okubhayela kanye nokukhipha usawoti, sebenzisa inani elincane lokukhipha usawoti omningi esikhundleni sokukhipha usawoti ovamile, uhlelo lokubuyisela ukushisa kwe-boiler blowdown, nciphisa futhi uqede imfucumfucu ye-boiler kanye ne-deaerator yokugcina ukushisa Ngesikhathi sokuvala, umzimba wokubhayela wafudumala.
Amanzi athwala isitimu ayingxenye yesitimu esonga amandla evamise ukunganakwa amakhasimende, futhi iyisixhumanisi esonga kakhulu ugesi ohlelweni lwesitimu. Ukuthwala umusi ngo-5% (okuvamile) kusho ukwehla ngo-1% ekusebenzeni kahle kukabhayela.
Ngaphezu kwalokho, umusi onamanzi uzokwandisa ukugcinwa kwesistimu yonke ye-steam futhi unciphise ukuphuma kwemishini yokushintshanisa ukushisa. Ukuze kuqedwe futhi kulawulwe ithonya lesitimu esimanzi (isimusi esinamanzi), ukomisa kwesitimu kusetshenziswa ngokukhethekile ukuhlola nokutholwa.
Amanye amajeneretha omusi anokoma okufika ku-75-80%, okusho ukuthi ukusebenza kahle kwangempela kokushisa kwejeneretha yesitimu kungase kwehliswe ngo-5%.
Ukungafani komthwalo kuyimbangela ebalulekile yokumosha amandla esitimu. Izinqola ezinkulu noma ezincane ezidonswa ngamahhashi zingaholela ekungasebenzi kahle ohlelweni lwe-steam. Umuzwa wokonga amandla we-Watt uhloselwe izinhlelo zokusebenza ezinomthamo omkhulu ovamile kanye nesigodi, kusetshenziswa izilinganisi zokugcina ukushisa kwesitimu, ama-boilers ajwayelekile, njll.
Ukusetshenziswa kwe-deaerator akugcini nje ukwandisa izinga lokushisa kwamanzi okuphakelayo kwe-steam boiler, kodwa futhi kususa umoya-mpilo emanzini okuphakelayo kubhayela, ngaleyo ndlela kuvikelwe uhlelo lwe-steam nokugwema ukwehla kokusebenza kahle kwesishintshi sokushisa se-steam.
Isikhathi sokuthumela: Jun-08-2023
