Kunezinhlobo eziningi zamajeneretha kagesi asebenza ngamanzi. Namuhla, ngizokwethula ngokuningiliziwe amajeneretha kagesi asebenza ngamanzi asebenza ngamanzi asebenza ngamanzi asebenzayo. Ukusetshenziswa kwamajeneretha e-axial flow turbine eminyakeni yamuva nje ikakhulukazi ukuthuthukiswa kwekhanda eliphakeme kanye nosayizi omkhulu. Ama-turbine asekhaya asebenza ngamanzi ...
Izinzuzo ze-axial flow turbine
Uma kuqhathaniswa nama-turbine kaFrancis, ama-turbine okugeleza kwe-axial anezinzuzo ezilandelayo eziyinhloko:
1. Isivinini esiphezulu kanye nezici ezinhle zamandla. Ngakho-ke, isivinini sayo seyunithi kanye nokugeleza kweyunithi kuphakeme kunese-turbine kaFrancis. Ngaphansi kwezimo ezifanayo zekhanda lamanzi kanye nokukhishwa, inganciphisa kakhulu usayizi weyunithi yokukhiqiza i-turbine, inciphise isisindo seyunithi, futhi yonge ukusetshenziswa kwezinto, ngakho-ke iyonga. iphezulu.
2. Ukuma kobuso kanye nobukhali bobuso be-runner blade ye-axial flow turbine kungahlangabezana kalula nezidingo zokukhiqiza. Ngenxa yokuthi ama-blade e-axial-flow rotary-paddle turbine angajikeleza, ukusebenza kahle okumaphakathi kuphakeme kunokwe-mixed-flow turbine. Lapho umthwalo kanye nekhanda lamanzi kushintsha, ukusebenza kahle akushintshi kakhulu.
3. Ama-runner blades e-axial-flow paddle turbine angahlukaniswa, okuyinto elula ukukhiqizwa nokuthuthwa.
Ngakho-ke, i-axial flow turbine ingagcina ukuzinza ebangeni elikhulu lokusebenza, ngokudlidliza okuncane, kanye nokusebenza kahle kanye nokukhipha okuphezulu. Ebangeni eliphansi, cishe selithathe indawo ye-Francis turbine. Emashumini eminyaka amuva nje, kokubili ngokomthamo weyunithi eyodwa kanye nokusetshenziswa kwekhanda lamanzi, kube nentuthuko enkulu, futhi ukusetshenziswa kwayo kubanzi kakhulu.
Izinkinga ze-axial flow turbine
Kodwa-ke, i-axial flow turbine nayo inezinkinga futhi ikhawulela ububanzi bokusetshenziswa kwayo. Izinkinga eziyinhloko yilezi:
1. Inani lama-blade lincane, futhi linamandla okusebenzisa ugesi, ngakho-ke amandla aphansi, futhi alikwazi ukusetshenziswa eziteshini zamandla kagesi aphakathi nendawo naphezulu.
2. Ngenxa yesilinganiso esikhulu sokugeleza kweyunithi kanye nesivinini esikhulu seyunithi, inokuphakama okuncane kokumunca kune-turbine kaFrancis ngaphansi kwesimo esifanayo sekhanda, okuholela ekujuleni okukhulu kokumba kwesisekelo sesiteshi samandla kanye nokutshalwa kwezimali okuphezulu.
Ngokusho kokushiyeka okukhulunywe ngakho ngenhla kwama-turbine okugeleza kwe-axial, kusetshenziswa izinto ezintsha ezinamandla aphezulu zokulwa nokuqhuma kwe-cavitation ekukhiqizweni kwe-turbine futhi amandla ama-blades ayathuthukiswa ekwakhiweni, ukuze ikhanda lokusetshenziswa kwama-turbine okugeleza kwe-axial lithuthuke njalo. Njengamanje, ikhanda lokusetshenziswa le-turbine yokugeleza kwe-axial lingama-3 kuya ku-90 m, futhi selingene endaweni ye-turbine kaFrancis. Isibonelo, umphumela omkhulu weyunithi eyodwa wama-turbine okugeleza kwe-axial angaphandle angama-181,700 kW, ikhanda lamanzi eliphakeme lingu-88 m, kanti ububanzi bomgijimi bungu-10.3 m. Umphumela omkhulu womshini owodwa we-turbine yokugeleza kwe-axial okhiqizwa ezweni lakithi ungu-175,000 kW, ikhanda lamanzi eliphakeme lingu-78 m, kanti ububanzi bomgijimi obukhulu bungu-11.3 m. I-turbine ye-propeller eqondile yokugeleza kwe-axial ine-blades eziqinile kanye nesakhiwo esilula, kodwa ayikwazi ukuzivumelanisa neziteshi zamandla kagesi ngezinguquko ezinkulu ekhanda lamanzi kanye nomthwalo. Inekhanda lamanzi elizinzile futhi isebenza njengomthwalo oyisisekelo noma isiteshi sikagesi esikhulu samayunithi amaningi. Uma amandla esizini eningi, ukuqhathanisa ngokwezomnotho nakho kungenzeka. Kungacatshangelwa. Ububanzi bekhanda layo elisebenzayo bungu-3-50m. Ama-turbine e-Axial-flow paddle ngokuvamile asebenzisa amadivayisi aqondile. Inqubo yayo yokusebenza ifana kakhulu neye-Francis turbines. Umehluko uwukuthi lapho umthwalo ushintsha, awugcini nje ngokulawula ukuzungeza kwama-guide vanes. , Ngesikhathi esifanayo ulungisa ukuzungeza kwama-runner blades ukuze kugcinwe ukusebenza kahle okuphezulu.
Ngaphambilini, sethule nama-turbine kaFrancis. Phakathi kwama-turbine generator, kusenomehluko omkhulu phakathi kwama-turbine kaFrancis nama-turbine okugeleza kwe-axial. Isibonelo, isakhiwo sama-runners awo sihlukile. Ama-blade ama-turbine kaFrancis acishe afane nomgodi oyinhloko, kuyilapho ama-turbine okugeleza kwe-axial cishe eqonde ngqo kumgodi oyinhloko.
Isikhathi sokuthunyelwe: Novemba-11-2021
