A: Ukugcinwa kwamandla kwenkqubo yomphunga kubonakaliswa kuyo yonke inkqubo yokusetyenziswa komphunga, ukususela ekucwangcisweni nasekuyilweni kwenkqubo yomphunga ukuya kulondolozo, ulawulo nokuphuculwa kwenkqubo yomphunga. Nangona kunjalo, ukonga amandla kwiibhoyili zomphunga okanye iijenereyitha zomphunga zihlala zinempembelelo enkulu kwiinkqubo zomphunga.
Kwinkqubo yokuvelisa i-steam, into yokuqala enokuyenza kukukhetha ibhoyili ye-steam eyenziwe kakuhle. Ubuchule boyilo lwebhoyila kufuneka bufikelele ngaphezu kwama-95%. Kuya kufuneka wazi ukuba kuhlala kukho umsantsa omkhulu phakathi kobuchule boyilo kunye nokwenyani komsebenzi. Kwiimeko zangempela zokusebenza, iiparamitha kunye neemeko zoyilo lwenkqubo yebhoyili zihlala zinzima ukuhlangabezana nazo.
Kukho iindlela ezimbini eziphambili zokuchitha amandla kwibhoyila. Sebenzisa isixhobo sebhoyila inkunkuma yokubuyisela ubushushu ukuze ubuyise ubushushu benkunkuma (ubushushu begesi yeflue), kwaye usebenzise obunye ubushushu benkunkuma obukumgangatho ophantsi ukunyusa ubushushu bamanzi esondlo kunye nobushushu bobushushu bomoya.
Ukunciphisa kunye nokulawula ubungakanani bebhoyila yamanzi amdaka kunye nokukhutshwa kwetyuwa, sebenzisa inani elincinci lokukhupha ityuwa eninzi endaweni yokukhupha ityuwa rhoqo, inkqubo yokubuyiswa kobushushu, ukunciphisa kunye nokuphelisa inkunkuma yokugcina ubushushu kunye ne-deaerator ngexesha lokuvalwa, umzimba webhoyila zigcinwe zishushu.
Amanzi okuthwala umphunga yinxalenye yokonga amandla kumphunga nesoloko ingahoywa ngabathengi, kwaye ikwalelona khonkco lokonga umbane kwinkqubo yomphunga. Ukugqithiswa komphunga nge-5% (okuqhelekileyo) kuthetha ukuncitshiswa kwe-1% kubuchule bebhoyila.
Ngaphezu koko, i-steam ngamanzi iya kwandisa ukugcinwa kwenkqubo yonke ye-steam kunye nokunciphisa ukukhutshwa kwezixhobo zokutshintsha ubushushu. Ukuze uphelise kwaye ulawule impembelelo ye-steam emanzi (i-steam ngamanzi), ukoma kwe-steam kusetyenziswa ngokukodwa ukuvavanya kunye nokufumanisa.
Ezinye iijenereyitha zomphunga zinokoma okungaphantsi kwe-75-80%, oku kuthetha ukuba eyona nto isebenzayo ye-thermal yejenereyitha yomphunga inokuncitshiswa nge-5%.
Ukungahambelani komthwalo ngunobangela obalulekileyo wenkcitho yamandla omphunga. Iinqwelo ezinkulu okanye ezincinci ezitsalwa ngamahashe zingakhokelela ekungasebenzi kakuhle kwinkqubo ye-steam. Amava okugcina amandla e-Watt ajolise kwizicelo ezinokuphakama rhoqo kunye nemithwalo yentlambo, usebenzisa i-balancers yokugcina ukushisa kwe-steam, ii-boilers zemodyuli, njl.
Ukusetyenziswa kwe-deaerator akugcini nje ukwandisa ubushushu bokutya kwebhoyila yamanzi, kodwa kwakhona kususa i-oksijini kwi-boiler feed ye-boiler yamanzi, ngaloo ndlela ikhusela inkqubo ye-steam kunye nokuphepha ukuhla kokusebenza kakuhle kwe-steam exchanger heat.
Ixesha lokuposa: Jun-08-2023
