Ukulungelelanisa ubushushu bejenereyitha yomphunga, okokuqala kufuneka siqonde izinto kunye neendlela ezichaphazela utshintsho lobushushu bomphunga, sibambe izinto ezinefuthe lobushushu bomphunga, kwaye sisikhokele ngokuchanekileyo ukulungelelanisa ngokufanelekileyo ubushushu bomphunga ukuze ubushushu bomphunga bukwazi. ilawulwe phakathi koluhlu olufanelekileyo. Ngokuqhelekileyo, izinto ezichaphazela ukutshintsha kweqondo lokushisa lomphunga zinokwahlulwa zibe ziinxalenye ezimbini, ezizezi, impembelelo yecala lerhasi yeflue kunye necala lomphunga ekutshintsheni kobushushu bomphunga.
1. Imiba enefuthe kwicala legesi yombane:
1) Impembelelo yokuqina kokutsha. Xa umthwalo uhlala ungatshintshi, ukuba ukutsha kuqinisiwe (umthamo womoya kunye nomthamo wamalahle ukwanda), uxinzelelo oluphambili lwe-steam luya kunyuka, kwaye iqondo lokushisa eliphambili le-steam kunye nokufudumala kweqondo lokushisa liya kwanda ngenxa yokunyuka kweqondo lokushisa lomsi kunye nomthamo wegesi ye-flue. ; ngaphandle koko, baya kuncipha, kwaye uxinzelelo lwe-steam luya kwanda. I-amplitude yokutshintsha kweqondo lokushisa ihambelana ne-amplitude yokutshintsha kokutsha.
2) Impembelelo yesikhundla seziko lomlilo (iziko lokutsha). Xa iziko lomlilo wesithando somlilo lihambela phezulu, iqondo lobushushu lomsi lomlilo liyanyuka. Ekubeni i-superheater kunye ne-reheater zicwangciswe kwindawo ephezulu yesithando somlilo, ubushushu obukhazimlayo obufunxayo buyanda, bubangela ukuba ubushushu obuphambili kunye nokufudumala bunyuke. Ibonakaliswe kumsebenzi wokwenene, xa ilitye lokusila litshintshela kumbindi kunye nomsebenzi ongasentla wokusila amalahle, ubushushu obuphambili bokutshisa umphunga luyenyuka. Ukongeza, xa isitywina samanzi esisezantsi kwejenereyitha yomphunga silahlekile, uxinzelelo olubi kwiziko luya kutsala umoya obandayo ukusuka ezantsi kwiziko, luphakamise umbindi welangatye, okuya kubangela ukuba ubushushu obuphambili bobushushu buphinde butshiswe. ukunyuka kakhulu. Kwiimeko ezimandundu, iqondo lobushushu lomphunga liyakwenza.
3) Impembelelo yomthamo womoya. Umthamo womoya uchaphazela ngokuthe ngqo umthamo wegesi ye-flue, nto leyo ethetha ukuba inempembelelo enkulu kuhlobo lwe-convection ye-superheater kunye ne-reheater. Kuyilo lwethu lwejenereyitha yomphunga, iimpawu zobushushu bomphunga we-superheater ngokubanzi luhlobo lokuhambisa, kunye neempawu zobushushu bomphunga we-reheater nazo zahlukile. Luhlobo lwe-convection, ngoko njengoko umthamo womoya ukhula, ukushisa kwe-steam kwandisa, kwaye njengoko umthamo womoya uyancipha, ubushushu be-steam buyancipha.
2. Impembelelo kwicala lomphunga:
1) Impembelelo yomswakama ogcweleyo kwiqondo lokushisa lomphunga. Okukhona ukufuma okugcwele umphunga, kokukhona umthamo wamanzi unyuka, kwaye kokukhona usezantsi ubushushu bomphunga. Ukufuma okugcweleyo komphunga kunxulunyaniswa nomgangatho wamanzi esoda, inqanaba lamanzi egubu lomphunga kunye nobungakanani bomphunga. Xa umgangatho wamanzi webhoyila uhlwempuzekile kwaye umthamo wetyuwa uyanda, kulula ukubangela ukuba i-co-evaporation ye-steam kunye namanzi, ibangele ukuba i-steam ifakwe; xa inqanaba lamanzi kwi-drum ye-steam lihlala liphezulu kakhulu, indawo yokwahlula i-cyclone separator ngaphakathi kwi-drum iyancitshiswa, kwaye umphumo wokuhlukana kwe-steam kunye namanzi uyancitshiswa, onokuthi ubangele ukunyanzeliswa komphunga. Amanzi; xa ubushushu bebhoyila bunyuka ngesiquphe okanye bugcwele kakhulu, isantya sokuhamba komphunga siyenyuka kwaye amandla omphunga okuthwala amathontsi amanzi ayanda, nto leyo eya kubangela ukuba ububanzi kunye nenani lamathontsi amanzi athwalwa ngumphunga ophuphumayo linyuke kakhulu. Ezi meko zingasentla ziya kubangela ukuhla ngokukhawuleza kobushushu bomphunga, okuya kuthi kwiimeko ezimandundu kuya kusongela ukusebenza ngokukhuselekileyo kwe-injini yomphunga. Ngoko ke, zama ukuyiphepha ngexesha lokusebenza.
2) Impembelelo yoxinzelelo oluphambili lomphunga. Njengoko uxinzelelo lukhula, ukushisa kwe-saturation kwandisa, kwaye ukushisa okufunekayo ukutshintsha amanzi abe yi-steam. Xa isixa sepetroli sihlala singatshintshi, umthamo womoya webhoyila uyancipha ngoko nangoko, oko kukuthi, umthamo womphunga odlula kwi-superheater uyancipha, kunye ne-superheater Ubushushu bomphunga ogcweleyo kwindawo yokungena luyenyuka, nto leyo ebangela ukuba ubushushu bomphunga bunyuke. . Ngokuchasene noko, uxinzelelo luyancipha kwaye ubushushu be-steam buyancipha. Nangona kunjalo, kufuneka kuqatshelwe ukuba impembelelo yokutshintsha koxinzelelo kwiqondo lokushisa yinkqubo yesikhashana. Njengoko uxinzelelo luyancipha, umthamo wamafutha kunye nomthamo womoya uya kwanda. Ngoko ke, ukushisa kwe-steam ekugqibeleni kuya kunyuka, nakwinqanaba elikhulu (kuxhomekeke ekunyuseni umthamo wamafutha). isidanga). Xa uqonda eli nqaku, khumbula “Lumkela ukucima imililo xa uxinezeleko luphezulu (umthamo wamafutha uya kuncitshiswa kakhulu, nto leyo ebangela ukutsha kube mandundu), kwaye kulumkele ukutshisa ngokugqithisileyo xa uxinezeleko luphantsi.”
3) Impembelelo yobushushu bamanzi esondlo. Njengoko ubushushu bamanzi okutya bunyuka, inani le-fuel efunekayo ukuvelisa inani elifanayo le-steam liyancipha, inani le-flue gas liyancipha kwaye izinga lokuhamba liyancipha, kwaye i-furnace outlet flue iyancipha. Lilonke, umlinganiselo wokufunxa ubushushu weheater enkulu eqaqambileyo uyenyuka, kwaye umlinganiselo wokufunxa ubushushu weheater ye-convective uyehla. Ngokweempawu zethu ze-convective superheater enomkhethe kunye ne-convective reheater ecocekileyo, eyona nto iphambili kunye nobushushu bobushushu bobushushu buyancipha, kwaye umthamo wamanzi oshushu uyahla. Ngokuchasene noko, ukuhla kobushushu bamanzi okutya kuya kubangela ukuba ubushushu obuphambili kunye nobushushu bobushushu bonyuke. Kumsebenzi wokwenyani, kubonakala ngakumbi xa kusenziwa uqhagamshelo olukwisantya esiphezulu kunye nemisebenzi yokufaka. Nika ingqalelo ngakumbi kwaye wenze uhlengahlengiso ngexesha elifanelekileyo.
Ixesha lokuposa: Nov-10-2023
