Jenareta uye mota dzinozivikanwa semhando mbiri dzakasiyana dzemichina michina.Imwe ndeyekushandura rimwe simba kuita simba remagetsi rekugadzira magetsi, ukuwo mota ichishandura simba remagetsi kuita mechanical simba rekukwevera zvimwe zvinhu.Nekudaro, izvo zviviri hazvigone kuisirwa uye kutsiviwa nemumwe.Mamwe marudzi emajenareta nemamotor anogona kuchinjana mushure mekugadzira nekugadzirisa.Nekudaro, kana paine chikanganiso, jenareta inoshandurwa zvakare kuita mota yekushanda, inova inodzivirira reverse pasi pesimba reverse rejenareta yatinoda kutaura nezvayo nhasi.
Chii chinonzi reverse power?
Sezvatinoziva tese, kutungamira kwesimba rejenareta kunofanirwa kuyerera kubva kunzira yejenareta kuenda kuhurongwa hwehurongwa.Zvisinei, nokuda kwechimwe chikonzero, apo turbine inorasikirwa nesimba rekuita uye jira rejenareta rinobva ratadza kufamba, simba remagetsi rinoshanduka kubva muhurongwa kuenda kujenareta, kureva kuti, jenareta inoshanduka kune motokari iri kushanda.Panguva ino, jenareta inotora simba rinoshanda kubva kune system, iyo inonzi reverse power.
Kukuvadza kwe reverse simba
Jenareta reverse kuchengetedza simba ndeyekuti kana iyo huru throttle valve yemhepo turbine yakavharwa nekuda kwechimwe chikonzero uye simba rekutanga rarasika, jenareta inoshanduka kuita mota kutyaira turbine yemhepo kuti itenderere.Iko kutenderera kwepamusoro-soro kwemhepo ye turbine blade isina steam kunokonzera kuputika kwekuputika, kunyanya mumutsara wekupedzisira, zvinogona kukonzera kupisa uye kutungamirira kungozi yekukuvara kwe rotor blade.
Naizvozvo, kudzoreredza simba rekudzivirira ndiko chaizvo kuchengetedza kwemhepo turbine pasina kushanda kweutsi.
Programmed reverse simba kudzivirira jenareta
Iyo jenareta chirongwa chekudzivirira simba rekudzivirira ndechekudzivirira jenareta kubva kamwe kamwe kugumbura jenareta chinoburitsa switch pasi peumwe mutoro uye main throttle valve yemhepo turbine haina kuvharwa zvizere.Muchiitiko ichi, iyo steam turbine jenareta unit inowanzo mhanyisa uye kunyange kumhanya.Kuti udzivise mamiriro ezvinhu aya, kune dzimwe dziviriro pasina kukanganisa-pfupi, mushure mekunge chiratidzo chechiitiko chatumirwa, chinotanga kuita pakuvhara huru yevhavha yemhepo yemhepo.Mushure meiyo reverse simba * * * yejenareta zviito, ichaita uye vharafu ine chiratidzo ichivhara iyo huru vharuvhu, fomu reverse simba rekudzivirira mushure menguva pfupi, uye chiito chichaita pakumira kwakazara.
Musiyano pakati pekuchengetedza simba reverse uye chirongwa reverse kuchengetedza simba
Reverse kuchengetedzwa kwesimba kudzivirira jenareta kuti isashanduke kuita mota mushure mesimba reverse, kutyaira turbine yehutsi kuti itenderere uye kukonzeresa kukuvadza kune turbine yehutsi.Mukuongorora kwekupedzisira, ini ndinotya kuti iyo prime mover inofambiswa neiyo system kana ikashaya simba!
Iyo purogiramu inodzosera simba rekudzivirira ndeyekudzivirira iyo turbine overspeed inokonzerwa neiyo main throttle valve isina kuvharwa zvizere mushure mekunge jenareta unit yabviswa kamwe kamwe, saka reverse simba rinoshandiswa kudzivirira.Mukuongorora kwekupedzisira, ndinotya kuti simba rakawandisa remufambisi mukuru rinotungamira mukukwirisa kweyuniti.
Naizvozvo, kunyatsotaura, reverse kuchengetedza simba imhando yekudzivirira relay rejenareta, asi inonyanya kudzivirira turbine yemhepo.Iyo chirongwa chekudzorera simba rekudzivirira haisi dziviriro, asi chiitiko chakaiswa kuti uone chirongwa chekufamba, inozivikanwawo sechirongwa chekufamba, icho chinowanzo shandiswa kudzima mode.
Chinokosha ndechekuti chero simba rekudzokera kumashure richisvika pamutengo wakatarwa, rinofamba.Pamusoro pekusvika pakukosha kwakatarwa, iyo program reverse power inodawo kuti main throttle valve of the steam turbine ivharwe.Naizvozvo, reverse simba chiito chinofanirwa kudzivirirwa panguva yekubatanidza grid panguva yekutanga unit.
Aya ndiwo mabasa ejenareta reverse dziviriro uye tsananguro yesimba rejenareta reverse.Kune iyo steam turbine jenareta mune grid yakabatana kushanda, ichashanda seyakafanana mota mushure meiyo huru throttle valve yemhepo turbine yakavharwa: tora rinoshanda simba uye dhonza turbine yemhepo kutenderera, inogona kutumira reactive simba kune system.Sezvo iyo main throttle valve yemhepo turbine yakavharwa, blade yemuswe weturbine yemhepo ine kukweshana neinosara mutsi kuti igadzire kurasikirwa kwekuputika, iyo inokuvadzwa nekupisa mukati mekushanda kwenguva refu.Panguva ino, iyo reverse kudzivirira inogona kuchengetedza turbine yemhepo kubva mukukuvadzwa.
Nguva yekutumira: Jan-10-2022
