Ngesikhathi sokulungiswa kweyunithi yejeneretha ye-turbine yamanzi, into eyodwa yokulungisa i-turbine yamanzi uphawu lokulungisa.Isigxivizo sokugcinwa kwe-hydraulic turbine sisho uphawu oluthwele oludingekayo ngesikhathi sokuvala shaqa noma ukugcinwa kwe-hydraulic turbine working seal kanye ne-hydraulic guide bear, evimbela ukugeleza kubuyele emuva kumgodi ophehlwayo lapho izinga lamanzi lomsila liphezulu.Namuhla, sizoxoxa ngezigaba ezimbalwa ze-turbine seal kusuka esakhiweni se-turbine shaft seal enkulu.
Uphawu olusebenzayo lwe-hydraulic turbine lungahlukaniswa lube
(1) Isigxivizo esiyisicaba.I-flat plate seal ihlanganisa ungqimba olulodwa lwepuleti seal kanye ne-double-layer flat plate seal.Ipuleti eliyisicaba elinesendlalelo esisodwa ngokuyinhloko lisebenzisa ipuleti lerabha lesendlalelo esisodwa ukuze kwakheke isivalo esinobuso besiphetho sensimbi engagqwali ezungezisayo indandatho egxiliswe ku-shaft eyinhloko.Ivalwe ngomfutho wamanzi.Isakhiwo sayo silula, kodwa umphumela wokuvala awumuhle njengalowo we-double flat plate seal, futhi impilo yayo yesevisi ayinde njengaleyo ye-double flat plate seal.I-double-layer flat plate inomphumela omuhle wokuvala, kodwa ukwakheka kwayo kuyinkimbinkimbi futhi amanzi avuzayo lapho ephakamisa.Njengamanje, isetshenziswa futhi kumayunithi amancane naphakathi nendawo ye-axial-flow.
(2) I-Radial seal.I-Radial seal iqukethe amabhulokhi ekhabhoni amaningana amise okwefeni acindezelwe ku-shaft eyinhloko iziphethu ezikumabhulokhi ensimbi amise okwefeni ukuze akhe ungqimba lophawu.Imbobo encane yokukhipha amanzi iyavulwa eringini yokuvala ukuze kukhishwe amanzi avuzayo.Ivalwe kakhulu emanzini ahlanzekile, futhi ukumelana kwayo nokugqokwa kubi emazingeni aqukethe amanzi.Isakhiwo se-seal siyinkimbinkimbi, ukufakwa nokugcinwa kunzima, ukusebenza kwentwasahlobo akulula ukuqinisekisa, futhi ukuzilawula kwe-radial ngemva kokungqubuzana kuncane, ngakho-ke kuye kwaqedwa ngokuyisisekelo futhi kwathathelwa indawo uphawu lobuso bokuphela.
(3) Ukupakisha uphawu.Ukupakisha uphawu lwakhiwe ngendandatho engezansi yophawu, ukupakisha, iringi yophawu lwamanzi, ipayipi lophawu lwamanzi kanye nendlala.Idlala ikakhulukazi indima yokuvala ngokupakisha maphakathi nendandatho engezansi yophawu kanye nomkhono wokucindezela izindlala.Uphawu lusetshenziswa kabanzi kumayunithi amancane avundlile.
(4) Isigxivizo sobuso.I-Face seal * * * uhlobo lwemishini kanye nohlobo lwe-hydraulic.Umakhenikha egcina uphawu lobuso luncike entwasahlobo ukudonsa idiski efakwe ibhulokhi yerabha eyindilinga, ukuze ibhulokhi yenjoloba eyindilinga ibe seduze nendandatho yensimbi engagqwali emiswe ku-shaft eyinhloko ukuze idlale indima yokuvala.Indandatho yokuvala irabha igxilile kukhava engaphezulu (noma ikhava yokusekela) ye-hydraulic turbine.Lolu hlobo lwesakhiwo sokubeka uphawu lulula futhi kulula ukululungisa, kodwa amandla entwasahlobo awalingani, athambekele ekubambeni kwe-eccentric, ukugqoka nokusebenza kokuvala okungazinzile.
(5) Labyrinth ring seal.I-Labyrinth ring seal iwuhlobo olusha lwe-seal eminyakeni yamuva nje.Umgomo wayo wokusebenza ukuthi idivayisi yepuleti lephampu isethwe phezulu komgijimi we-turbine.Ngenxa yomphumela wokumunca wepuleti lepompo, i-shaft flange eyinhloko ihlala isemkhathini.Akukho ukuxhumana phakathi kwe-shaft ne-shaft seal, futhi kukhona ungqimba lomoya kuphela.Uphawu lunokuphila okude kakhulu kwenkonzo.I-shaft seal eyinhloko iwuhlobo lwe-labyrinth olungathinteki, olwakhiwe ngomkhono ojikelezayo eduze kwe-shaft, ibhokisi lokuvala, ipayipi eliyinhloko le-shaft seal drainage kanye nezinye izingxenye.Ngaphansi kokusebenza okuvamile kwe-turbine, ayikho ingcindezi yamanzi ebhokisini lokuvala phakathi kwawo wonke ububanzi bomthwalo.Ipuleti lephampu kumgijimi lizungeza nomgijimi ukuvimbela amanzi kanye nezinto eziqinile ekungeneni ku-shaft seal eyinhloko.Ngesikhathi esifanayo, ipayipi lokudonsa amanzi lepuleti lepompo livimbela isihlabathi noma izinto eziqinile ukuthi zinganqwabelani ngaphansi kwesembozo esiphezulu se-turbine yamanzi, futhi likhipha ukuvuza okuncane kwamanzi ngendandatho yokumisa ukuvuza ephezulu ukuya emanzini omsila ngepayipi lokudonsa amanzi. wepuleti lepompo.
Lezi yizigaba ezine eziyinhloko zama-turbine seal.Kulezi zigaba ezine, i-labyrinth ring seal, njengobuchwepheshe obusha bokuvala uphawu, ingavimbela ngokuphumelelayo ukuvuza kwamanzi ebhokisini lokuvala, elamukelwe futhi lisetshenziswe iziteshi eziningi zamanzi, futhi umphumela wokusebenza muhle.
Isikhathi sokuthumela: Jan-24-2022
