Iko kusagadzikana kushanda kwehydraulic turbine unit kunotungamira kukudengenyeka kwehydraulic turbine unit.Kana iyo vibration ye hydraulic turbine unit yakakomba, ichava nemhedzisiro yakakomba uye inotokanganisa kuchengetedzwa kwechirimwa chose.Naizvozvo, kudzikama optimization matanho ehydraulic turbine akakosha zvakanyanya.Ndeapi matanho ekugadzirisa aripo?
1) Ramba uchikwenenzvera dhizaini ye hydraulic ye turbine yemvura, gadzirisa dhizaini yayo mudhizaini yeturbine yemvura, uye ive nechokwadi chekushanda kwakagadzikana kweiyo turbine yemvura.Naizvozvo, mubasa chairo rekugadzira, vagadziri havangodi chete kuve neruzivo rwakasimba rwehunyanzvi, asi vanoedzawo kukwidziridza dhizaini yakasanganiswa neruzivo rwavo rwebasa.
Parizvino, computational fluid dynamics (CFD) uye modhi bvunzo zviri kushandiswa zvakanyanya.Muchikamu chekugadzira, mugadziri anofanira kusanganisa ruzivo rwebasa, shandisa CFD uye modhi bvunzo mubasa, gara uchinatsiridza gwara vane airfoil, mumhanyi blade airfoil uye discharge koni, uye edza kudzora zvine musoro kudzvanywa kuchinjika amplitude yedhizaini chubhu.Parizvino, hapana chiyero chakabatana cheiyo amplitude renji yekudhirowa chubhu kudzvanywa kushanduka munyika.Kazhinji, kumhanya kutenderera kweyepamusoro musoro chiteshi chemagetsi yakadzikira uye iyo vibration amplitude idiki, asi iyo chaiyo yekumhanya yeyakaderera musoro chiteshi chemagetsi yakakwira uye pressure fluctuation amplitude yakakura.
2) Simbisa hutongi hwemhando yezvigadzirwa zve turbine yemvura uye uvandudze mwero wekugadzirisa.Muchikamu chekugadzira che hydraulic turbine, kusimbisa chigadzirwa chekutonga kwe hydraulic turbine zvakare inzira yakakosha yekuvandudza kushanda kwayo kugadzikana.Naizvozvo, chekutanga, kuomarara kwekuyerera kwezvikamu zve hydraulic turbine kunofanirwa kuvandudzwa kuti kuderedze deformation yayo pasi pe hydraulic action.Pamusoro pezvo, mugadziri anofanirwawo kufunga zvizere mukana weiyo resonance yedhizaini chubhu yakasarudzika frequency uye frequency yekuyerera vortex bhendi uye mumhanyi wezvakasikwa frequency pamutoro wakaderera.
Mukuwedzera, chikamu chekushandura cheblade chinofanira kugadzirwa nesayenzi.Nekusimbisa kwenzvimbo kwemudzi weblade, iyo inogumira yekuongorora chinhu nzira inofanirwa kushandiswa kudzikisa kushushikana kwekushushikana.Muchikamu chekugadzira mumhanyi, hurongwa hwekugadzira hwakasimba hunofanirwa kutorwa, uye simbi isina tsvina inofanira kushandiswa muzvinyorwa.Chekupedzisira, matatu-dimensional software inofanirwa kushandiswa kugadzira mumhanyi modhi uye kudzora blade ukobvu.Mushure mekunge mumhanyi agadziriswa, chiyero chekuenzanisa chichaitwa kuti udzivise kutenderera kwehuremu uye kugadzirisa chiyero.Kuti uve nechokwadi chehutano hwe hydraulic turbine, kugadzirisa kwayo kwekupedzisira kunofanira kusimbiswa.
Aya ndiwo mamwe matanho ekudzikamisa optimization yehydraulic turbine unit.Nekugadzikana kwe optimization ye hydraulic turbine, isu tinofanirwa kutanga kubva padanho rekugadzira, kusanganisa iyo chaiyo mamiriro uye ruzivo rwebasa, uye gara uchinatsiridza nekunatsiridza muyedzo yemuenzaniso.Pamusoro pezvo, ndeapi matanho atinawo ekugonesa kugadzikana mukushandisa?Ngatienderei munyaya inotevera.
Maitiro ekuvandudza uye nekugonesa kugadzikana kwema hydro jenareta zvikamu zviri kushandiswa.
Munguva yekushandiswa kwe turbine yemvura, mashizha ayo, mumhanyi uye zvimwe zvikamu zvishoma nezvishoma zvinotambura cavitation uye abrasion.Nokudaro, zvakakosha kuona uye kugadzirisa turbine yemvura nguva dzose.Parizvino, nzira yakajairika yekugadzirisa mukuchengetedza hydraulic turbine ndeyekugadzirisa welding.Mune chaiyo yekugadzirisa welding basa, isu tinofanira kugara tichiteerera kune deformation yezvakaremara zvikamu.Mushure mekunge basa rekugadzirisa welding rapera, isu tinofanirawo kuita kuyedza kusinga konzerese uye kupuruzira nzvimbo yakatsetseka.
Kusimbaradza manejimendi ezuva nezuva echiteshi chemagetsi kunobatsira kuve nechokwadi chekushanda kwakajairwa kwehydraulic turbine unit, uye kugadzirisa kugadzikana kwekushanda kwayo uye kushanda zvakanaka.
① Kushanda kwemajini eturbine emvura kunozobatwa zvinoenderana nemitemo yenyika.Zviteshi zveHydropower kazhinji zvine basa re frequency modulation uye peak shaving musystem.Munguva pfupi, maawa ekushanda ari kunze kwenzvimbo yakavimbiswa yekushanda haadzivisiki.Mubasa rinoshanda, maawa ekushanda ari kunze kwenzvimbo yekushanda anofanirwa kudzorwa panenge pa5% zvakanyanya sezvinobvira.
② Pasi pemamiriro ekushanda kweiyo turbine yemvura unit, nzvimbo yekudengenyeka inofanira kudzivirirwa sezvinobvira.Francis turbine kazhinji ine imwe vibration zone kana nzvimbo mbiri dzekuzunguza, saka mukutanga nekuvhara nhanho yeturbine, nzira yekuyambuka inogona kutorwa kudzivirira iyo vibration zone kusvika pazvinobvira.Mukuwedzera, mubasa rezuva nezuva remvura turbine unit, nhamba yekutanga nekuvhara inofanira kuderedzwa zvakanyanya sezvinobvira.Nekuti mukuita kwekutanga kutanga uye kuvharika, iyo turbine kumhanya uye kudzvanywa kwemvura kuchachinja nguva dzose, uye chiitiko ichi hachina kunaka zvakanyanya kune kugadzikana kweyuniti.
③ Munguva itsva, sainzi uye tekinoroji zviri kukura nekukurumidza.Mukushanda kwemazuva ese kwezviteshi zvemagetsi emvura, nzira dzekuona dzepamusoro dzinofanirawo kushandiswa kutarisa mamiriro ekushanda kwemayuniti emvura turbine munguva chaiyo kuti ive nechokwadi chekugadzikana kwekushanda kweturbine yemvura.
Aya ndiwo matanho ekugadzirisa kugadzikana kwehydro generator unit.Mukuita chaiko kwematanho ekugadzirisa, isu tinofanirwa kugadzira nesainzi uye zvine musoro chirongwa chekugadzirisa zvinoenderana nemamiriro edu chaiwo.Uye zvakare, panguva yenguva yekudzokorora uye kugadzirisa, teerera kana paine matambudziko mune stator, rotor uye gwara rinotakura remvura turbine unit, kuitira kuti udzivise kudengenyeka kweiyo mvura turbine unit.
Nguva yekutumira: Sep-24-2021
