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.
Yehlisa futhi ulawule inani le-boiler indle kanye nokukhishwa kukasawoti, sebenzisa inani elincane lokukhipha usawoti omningi esikhundleni sokukhipha usawoti ovamile, uhlelo lokubuyisela ukushisa kwe-boiler blowdown, nciphisa futhi uqede imfucuza ye-boiler ne-deaerator yokugcina ukushisa Ngesikhathi sokuvala, umzimba webhayela ugcinwa ufudumele.
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
