Ijenereyitha kunye nemoto zaziwa njengeendidi ezimbini ezahlukeneyo zezixhobo zoomatshini.Enye kukuguqula amanye amandla abe ngamandla ombane okuvelisa amandla, ngelixa i-motor iguqula amandla ombane abe ngamandla oomatshini ukutsala ezinye izinto.Nangona kunjalo, ezi zimbini azinakufakwa kwaye zitshintshwe enye kwenye.Ezinye iintlobo zeejeneretha kunye neenjini zinokutshintshwa emva koyilo kunye nohlengahlengiso.Nangona kunjalo, xa kukho impazamo, i-generator iphinda iguqulelwe ekusebenzeni kweemoto, nto leyo ikhusela umva phantsi kwamandla ajikelezayo e-generator esifuna ukuthetha ngayo namhlanje.
Yintoni amandla angasemva?
Njengoko sonke sisazi, ulwalathiso lwamandla ejenereyitha kufuneka luhambe ukusuka kwicala lejenereyitha ukuya kwicala lenkqubo.Nangona kunjalo, ngesizathu esithile, xa i-injini yomoya ilahlekelwa amandla ashukumisayo kwaye isitshixo se-jenereyitha sisilela ukuhamba, ulwalathiso lwamandla luyatshintsha ukusuka kwinkqubo ukuya kwijenereyitha, oko kukuthi, i-generator iyatshintsha kwi-motor esebenzayo.Ngeli xesha, i-generator ithatha amandla asebenzayo kwinkqubo, ebizwa ngokuba yi-reverse power.
Ubungozi bokubuyisela umva amandla
Ijenereyitha umva ukhuseleko lwamandla kukuba xa ivalve ye-throttle ye-injini yomphunga ivaliwe ngenxa yesizathu esithile kwaye amandla oqobo alahlekile, ijenereyitha ijika ibe yinjini yokuqhuba i-injini yomphunga ukuze ijikeleze.Isantya esiphezulu sokujikeleza kweblade ye-injini ye-steam ngaphandle kwe-steam iya kubangela ukuqhuma kwe-friction, ngakumbi kwinqanaba lokugqibela le-blade, kunokubangela ukushisa okugqithisileyo kwaye kukhokelela kumonakalo wengozi ye-rotor blade.
Ke ngoko, umva umva ukhuseleko lwamandla lukhuselo lwe turbine yomphunga ngaphandle kokusebenza komphunga.
Ukhuseleko lwamandla olwenziwa umva wejenereyitha
Inkqubo yokubuyisela umva ukhuseleko lwamandla ikakhulu kukuthintela ijenereyitha ukuba ingakhubeki ngequbuliso isitshixo sokukhutshwa kwejenereyitha phantsi komthwalo othile kunye nevalve engundoqo ye turbine yomphunga ayivalwanga ngokupheleleyo.Kule meko, iyunithi yejenereyitha ye-injini yomphunga ithanda ukuba nesantya esigqithisileyo kunye nokukhawuleza.Ukuze ugweme le meko, kwezinye iindawo zokukhusela ngaphandle kwesiphambeko esifutshane, emva kokuba isignali yesenzo ithunyelwe, iya kuqala isebenze ekuvaleni i-valve engundoqo ye-steam turbine.Emva kokuba umva amandla * * * ezenzo zejenereyitha, iyakwenza kunye nevalve enophawu oluvala ivalve engundoqo yomphunga, ifom yokhuseleko lwamandla ebuyela umva emva kwexesha elifutshane, kwaye isenzo siya kusebenza ngokumisa ngokupheleleyo.
Umahluko phakathi kokhuseleko lwamandla omva kunye nokhuseleko lwamandla okubuyisela umva
Ukubuyisela umva ukhuseleko lwamandla kukuthintela ijenereyitha ekubeni ijike ibe yinjini emva kombane obuya umva, ukuqhuba i-injini yomphunga ukuba ijikeleze kwaye ibangele umonakalo kwiinjini yomphunga.Kuhlaziyo lokugqibela, ndinoloyiko lokuba i-prime mover iya kuqhutywa yinkqubo ukuba ayinamandla!
Inkqubo yokukhusela amandla okubuyisela umva kukuthintela i-iturbine overspeed ebangelwa yivalve ye-throttle engundoqo ingavalwanga ngokupheleleyo emva kokuba iyunithi yejenereyitha iqhawulwe ngequbuliso, ngoko ke amandla angasemva asetyenziselwa ukuphepha.Kuhlahlelo lokugqibela, ndiyoyika ukuba amandla amaninzi oyena mntu uphambili azakukhokelela kwisantya esiphezulu seyunithi.
Ke ngoko, xa sithetha ngokungqongqo, umva umva ukhuseleko lwamandla luhlobo lokhuseleko lombane wejenereyitha, kodwa ikakhulu ikhusela i-injini yomphunga.Inkqubo yokubuyisela umva ukhuseleko lwamandla ayilokhuselo, kodwa yinkqubo yesenzo esetiweyo ukuze kuqatshelwe inkqubo yokunqunqa, ekwabizwa ngokuba yinkqubo yokunqunqa, esetyenziswa ngokubanzi kwimowudi yokuvala.
Isitshixo sesokuba nje ukuba amandla angasemva afikelela kwixabiso elibekiweyo, liya kuhamba.Ukongeza ekufikeleleni kwixabiso elibekiweyo, inkqubo yokubuyisela umva amandla ikwafuna ukuba kuvalwe ivalve ye-throttle ye-injini yomphunga.Ke ngoko, isenzo samandla esingasemva kufuneka siphetshwe ngexesha loqhagamshelo lwegridi ngexesha lokuqalisa iyunithi.
Le yimisebenzi yokukhusela i-generator reverse kunye nenkcazo ye-generator reverse power.Kwijenereyitha ye-injini yomphunga kwigridi eqhagamshelwe ukusebenza, iya kusebenza njengemoto ehambelanayo emva kokuba ivalve ye-throttle ye-injini yomphunga ivaliwe: ukufunxa amandla asebenzayo kwaye utsale i-injini yomphunga ukujikeleza, enokuthumela amandla asebenzayo kwinkqubo.Njengoko ivalve ye-throttle engundoqo ye-injini yomphunga ivaliwe, iblade yomsila weinjini yomphunga inokukhuhlana nomphunga oshiyekileyo ukwenza ilahleko yokuqhushumba, yonakaliswe kubushushu obugqithisileyo ngexesha lokusebenza kwexesha elide.Ngeli xesha, ukukhuselwa umva kunokukhusela i-injini yomphunga kumonakalo.
Ixesha lokuposa: Jan-10-2022
