Kunezinhlobo eziningi zamajeneretha e-hydro.Namuhla, ake sethule ijeneretha ye-axial-flow hydro ngokuningiliziwe.Ukusetshenziswa kwe-axial-flow hydro generator eminyakeni yamuva ikakhulukazi ukuthuthukiswa kwekhanda lamanzi aphezulu kanye nosayizi omkhulu.Ukuthuthukiswa kwama-axial-flow turbines asekhaya nakho kuyashesha.Kunezinhlobo ezimbili zama-axial-flow paddle turbines afakwe esiteshini esakhiwe ngamanzi e-Gezhouba, esisodwa sazo esinobubanzi be-runner engu-11.3m, okuwububanzi bomgijimi wamaturbine afanayo emhlabeni.Nazi izinzuzo kanye nokubi kwe-intermediate axial flow turbine.
Izinzuzo ze-axial flow turbine
Uma kuqhathaniswa ne-Francis turbine, i-axial-flow turbine inezinzuzo ezibalulekile ezilandelayo:
1. Isivinini esithile esiphezulu kanye nezici ezinhle zamandla.Ngakho-ke, isivinini seyunithi nokugeleza kweyunithi kuphakeme kunaleyo ye-Francis turbine.Ngaphansi kwezimo ezifanayo zekhanda kanye nokuphumayo, kunganciphisa kakhulu ubukhulu beyunithi ye-hydraulic turbine generator, ukunciphisa isisindo seyunithi nokugcina ukusetshenziswa kwezinto ezibonakalayo, ngakho-ke kunezinzuzo eziphezulu zezomnotho.
2. Ukuma okungaphezulu kanye nokuqina kwengaphezulu kwama-runner blades e-axial-flow turbine kulula ukuhlangabezana nezidingo zokukhiqiza.Ngenxa yokuthi izindwani ze-axial flow propeller turbine zingazungeza, ukusebenza kahle okumaphakathi kungaphezulu kwalokho kwe-Francis turbine.Lapho umthwalo nekhanda lishintsha, ukusebenza kahle kushintsha kancane.
3. Ama-runner blades we-axial flow paddle turbine angahlakazwa ukuze kube lula ukukhiqiza nokuhamba.
Ngakho-ke, i-axial-flow turbine igcina izinzile ebangeni elikhulu lokusebenza, inokudlidliza okuncane, futhi isebenza kahle kakhulu kanye nokuphumayo.Ebangeni lekhanda lamanzi aphansi, licishe lingene esikhundleni se-Francis turbine.Emashumini eminyaka amuva nje, yenze intuthuko enkulu kanye nokusetshenziswa okubanzi mayelana nomthamo weyunithi eyodwa kanye nekhanda lamanzi.
3. Ukungalungi kwe-axial flow turbine
Kodwa-ke, i-axial-flow turbine nayo inokungalungi futhi ikhawulela ububanzi bokusebenza kwayo.Ukungalungi kwayo okuyinhloko yizi:
1. Inombolo yama-blades incane futhi i-cantilever, ngakho-ke amandla ampofu futhi awakwazi ukusetshenziswa eziteshini zamanzi aphakathi nendawo aphezulu.
2. Ngenxa yokugeleza kweyunithi enkulu kanye nesivinini seyunithi ephezulu, inobude obuncane bokudonsa kune-Francis turbine ngaphansi kwekhanda lamanzi elifanayo, okuholela ekujuleni kokumba okukhulu kanye nokutshalwa kwezimali okuphezulu uma kuqhathaniswa kwesisekelo sesiteshi sikagesi.
Ngokusho kwamaphutha angenhla we-axial-flow turbine, inhloko yesicelo se-axial-flow turbine ithuthukiswa ngokuqhubekayo ngokwamukela izinto ezintsha ezinamandla amakhulu kanye nokumelana ne-cavitation ekukhiqizeni i-turbine kanye nokuthuthukisa isimo sokucindezeleka kwama-blade ekuklanyeni.Njengamanje, uhla lwekhanda lohlelo lokusebenza lwe-axial flow propeller turbine luyi-3-90 m, olungene endaweni ye-Francis turbine.Isibonelo, ukuphuma * * * komshini owodwa we-axial flow propeller turbine yangaphandle ngu-181700 kW, * * * ikhanda lingu-88m, kanti ububanzi bomgijimi bungu-10.3M.Ukukhipha okukodwa kwe-axial flow propeller turbine ekhiqizwe eShayina ingu-175000 kW, * * * ikhanda lingu-78m, kanti ububanzi be-* * * umgijimi ngu-11.3m.I-Axial flow fixed propeller turbine inama-blade angashintshi kanye nesakhiwo esilula, kodwa ayikwazi ukuzivumelanisa neziteshi zokuphehla amandla ngamanzi anezinguquko ezinkulu ekhanda lamanzi nomthwalo.Eziteshini ezinkulu eziphehla ugesi ngamanzi ezinekhanda lamanzi elizinzile futhi elisebenza njengomthwalo oyisisekelo noma amayunithi amaningi, kungabuye kucatshangelwe ngemva kokuqhathanisa kwezomnotho lapho amandla kagesi esizini eningi.Ibanga layo lekhanda lamanzi elisebenzayo liyi-3-50m.I-Axial flow propeller turbine ngokuvamile isebenzisa idivayisi eqondile, futhi inqubo yayo yokusebenza ngokuyisisekelo ifana neye-Francis turbine. i-runner blade ukugcina ukusebenza kahle okuphezulu.
Sethule ne-Francis turbine ngaphambilini.Phakathi kwamajeneretha e-hydro, i-Francis turbine yehluke kakhulu kune-axial-flow turbine.Isibonelo, izinhlobo zesakhiwo somgijimi wazo zihlukile.Ama-blades e-Francis turbine acishe ahambisane ne-shaft eyinhloko, kuyilapho lawo e-axial flow turbine acishe aqonde ku-shaft eyinhloko.
Isikhathi sokuthumela: Apr-19-2022
