Ngexesha lokugcinwa kweyunithi yejenereyitha yeijini yamanzi, enye into yogcino lweinjini yeijini yamanzi lutywino lolondolozo. Isitywina sokugcinwa kweiturbine ye-hydraulic ibhekisa kwitywina elifunekayo ngexesha lokuvalwa okanye ukugcinwa kwe-hydraulic turbine working seal kunye ne-hydraulic guide bearing, ethintela ukuphuma ngasemva ukuya kumngxuma weinjini yomoya xa umphakamo wamanzi omsila uphezulu. Namhlanje, siza kuxoxa ngohlelo oluninzi lwe-iturbine yokutywinwa kwisakhiwo se-injini ye-shaft engundoqo yetywina.
Isitywina esisebenzayo se-hydraulic turbine inokohlulwa ibe
(1) Isitywina esisicaba. Isitywina sepleyiti esisicaba sibandakanya umaleko omnye wepleyiti etywiniweyo kunye nomgangatho ophindwe kabini wepleyiti etywiniweyo. Isitywina sepleyiti esisicaba esinomgangatho omnye sisebenzisa ipleyiti yerabha enomgangatho omnye ukwenza itywina elinobuso besiphelo sentsimbi ejikelezayo iringi emiswe kwishafti engundoqo. Ivalwe ngoxinzelelo lwamanzi. Ulwakhiwo lwayo lulula, kodwa isiphumo sokutywinwa asilunganga njengeso sitywina sepleyiti ephindwe kabini, kwaye ubomi bayo benkonzo abukho bude njengobo botywino lwepleyiti ephindwe kabini. I-flat-layer flat plate inesiphumo esihle sokutywinwa, kodwa isakhiwo sayo sinzima kwaye amanzi avuza xa uphakamisa. Okwangoku, isetyenziselwa kwiiyunithi ezincinci kunye nobukhulu obuphakathi kwe-axial-flow flow.
(2) Ukutywinwa kweRadial. I-Radial seal iqulathe iibhloko zekhabhoni ezininzi ezimile okwefeni ezicinezelwe ngokuqinileyo kwishafti engundoqo ngemithombo kwiibhloko zentsimbi ezimilise okwefeni ukwenza umaleko wetywina. Umngxuma omncinci wokukhupha amanzi uvulwa kwiringi yokutywina ukukhupha amanzi avuzayo. Ivalwa kakhulu kumanzi acocekileyo, kwaye ukuxhathisa kwayo kubuthathaka kwintlenga enamanzi. Isakhiwo setywina sinzima, ukufakela kunye nokugcinwa kunzima, ukusebenza kwentwasahlobo akulula ukuqinisekisa, kwaye ukuzilawula kwe-radial emva kokungqubuzana kuncinci, ngoko kuye kwapheliswa ngokusisiseko kwaye kwathatyathelwa indawo yesitywina sobuso bokugqibela.
(3) Ukupakisha isitywina. Ukupakishwa kwetywina kwenziwa ngeringi esezantsi, ukupakisha, iringi yokutywina yamanzi, umbhobho wokutywina wamanzi kunye nedlala. Ubukhulu becala idlala indima yokutywina ngokupakisha embindini weringi yetywina esezantsi kunye nomkhono wocinezelo lwamadlala. Isitywina sisetyenziswa ngokubanzi kwiiyunithi ezincinci ezithe tye.
(4) Isitywina sobuso. Isitywina sobuso * * * uhlobo lomatshini kunye nodidi lolwelo lwamanzi. Mechanical ekupheleni ubuso itywina ixhomekeke entwasahlobo ukutsala idiskhi exhotyiswe block irabha setyhula, ukuze ibloko yerabha setyhula kufutshane umsesane steel stainless emiliselwe kwi shaft engundoqo ukudlala indima yokutywina. Iringi yokutywina yerabha igxininiswe kwisigqubuthelo esingaphezulu (okanye isikhuselo senkxaso) se-hydraulic turbine. Olu hlobo lwesakhiwo sokutywina silula kwaye kulula ukuhlengahlengisa, kodwa amandla entwasahlobo ayilingani, ethandwa kakhulu kwi-eccentric clamping, ukunxiba kunye nokusebenza kokutywinwa okungazinzanga.
(5) Labyrinth ring itywina. I-Labyrinth ring seal luhlobo olutsha lwetywina kwiminyaka yakutshanje. Umgaqo wayo wokusebenza kukuba isixhobo sepuleti yepompo sibekwe phezulu kumgijimi we-turbine. Ngenxa yomphumo wokufunxa wepuleti yempompo, i-shaft flange ephambili ihlala isemoyeni. Akukho nxibelelwano phakathi kwe-shaft kunye ne-shaft seal, kwaye kukho kuphela umaleko womoya. Itywina linobomi benkonzo obude kakhulu. Isitywina esiphambili se-shaft luhlobo lwe-labyrinth olungadibanisiyo, oluqulunqwe ngumkhono ojikelezayo kufuphi ne-shaft, ibhokisi lokutywina, umbhobho wokukhupha i-shaft engundoqo kunye nezinye izinto. Ngaphantsi kokusebenza okuqhelekileyo kweinjini yomoya, akukho xinzelelo lwamanzi kwibhokisi yokutywina ngaphakathi koluhlu lomthwalo wonke. I-pum plate kumgijimi ijikeleza kunye nembaleki ukukhusela amanzi kunye nezinto eziqinileyo ekungeneni kwi-shaft seal engundoqo. Kwangaxeshanye, umbhobho wokuhambisa amanzi wepleyiti yempompo uthintela isanti okanye izinto eziqinileyo ukuba zingaqokeleli phantsi kwesigqubuthelo esingaphezulu seinjini yamanzi, kwaye ikhuphe ukuvuza okuncinci kwamanzi ngeringi yokumisa ukuvuza ephezulu ukuya kumanzi omsila ngombhobho wokuhambisa amanzi wepleyiti yempompo.
Ezi zezona ndidi ziphambili zotywino lwe turbine. Kwiindidi ezine, i-labyrinth ring seal, njengeteknoloji entsha yokutywinwa, inokuthintela ngokufanelekileyo ukuvuza kwamanzi kwibhokisi yokutywina, eyamkelwe kwaye isetyenziswe ngamaziko amaninzi ombane, kwaye umphumo wokusebenza ulungile.
Ixesha lokuposa: Jan-24-2022
