I-NINGBO BODI SEALS CO.,LTD isebenzisa amakhukhi ukuthuthukisa ulwazi lwakho.Ngokuqhubeka nokuphequlula leli sayithi, uyavumelana nokusebenzisa kwethu amakhukhi.Ulwazi olwengeziwe.
Ukuthola izimpawu ezisebenzayo zezindawo eziguquguqukayo kube yinselelo enkulu emashumini eminyaka ngisho namakhulu eminyaka, futhi kuye kwaba inselele kakhulu kusukela kwavela nokuthuthukiswa kwezimoto, izindiza, nemishini eyinkimbinkimbi.
Namuhla, thermoplastics ezifana polytetrafluoroethylene(PTFE) izindebe zomlomo(owaziwa nangokuthi ama-rotary shaft seal) aya ngokuya asetshenziswa.
Kulesi sihloko, sizobhekisisa impilo ye-PTFE rotary lip seal esebenza kahle kakhulu kanye nokuvela kwayo ngokuhamba kwesikhathi.
Lonke “iqhawe elinamandla” linendaba yomsuka.Okufanayo kusebenza kuma-PTFE lip seal.Amaphayona asendulo ayesebenzisa izintambo, isikhumba esiluhlaza, noma amabhande awugqinsi njengezinye zezimpawu zokuqala noma izakhi zokuvala kuma-ekseli amasondo.Nokho, lezi zimvu zamanzi zivame ukuvuza futhi zidinga ukunakekelwa njalo.Iningi lezinkampani zanamuhla ze-elastomeric seal kwake kwaba yizindawo zokushukwa kwesikhumba.
Ngasekupheleni kwawo-1920, izigxivizo zokuqala zomlomo we-radial zenziwe ngamabhokisi esikhumba nensimbi anezinsimbi.Ngasekupheleni kwawo-1940, isikhumba saqala ukushintshwa yirabha yokwenziwa.Ngemva kweminyaka engu-40, abakhiqizi abaningi baqala ukucabanga kabusha uhlelo lwabo lonke lokuvala, ngokuvamile bahlanganisa indawo yokuvala endaweni yokuhlanganisa uphawu futhi basebenzise izindebe eziningi ezinamaphoyinti okuxhumana aqondile futhi avundlile.
I-Fluorocarbon ingenye yabakhiqizi abanjalo.Ngo-1982, iFluorocarbon Company yathola i-SealComp, ngaleso sikhathi eyayiyinkampani encane yokukhiqiza izindebe zomlomo ezinze eMichigan.Ngemva kokutholwa, i-Fluorocarbon Company yathuthela i-SealComp embonini eseNingizimu Carolina ukuze ikhiqize izimpawu zensimbi zezimboni zenuzi ne-petrochemical.
Leli bhizinisi elisha le-lip seal ligxile kakhulu kumaphampu nezinjini ezinomfutho ophezulu we-hydraulic, ama-alternator ezempi kanye neminye imikhiqizo yezohwebo ehlanganisa amaloli e-diesel crankshaft seal kanye nama-thermostats.
Ngo-1995, i-elastomeric tape yengezwa ku-Lip seal yangaphandle.Lokhu kwenziwa ukuze kuqedwe ukucindezela kwensimbi-kuya-metal futhi kuqinisekiswe uphawu oluqinile phakathi kwesigxivizo kanye nesigxivizo somzimba wekhasimende.Izici ezengeziwe zengezwa kamuva ukuze zikhishwe uphawu nezitobhi ezisebenzayo ukuze kutholwe uphawu nokuvimbela ukufakwa okungalungile.
Kukhona ukufana okuningi, kodwa futhi umehluko omkhulu, phakathi kwe-elastomeric rubber lip seal kanye ne-BD seals PTFE lip seal.
Ngokwesakhiwo, womabili ama-seal afana kakhulu ngokuthi asebenzisa umzimba wensimbi ocindezelwe kuphawu lomzimba omile kanye nezinto ezindebe ezingagugi ezigudla umphini ojikelezayo.Asebenzisa nendawo efanayo lapho esetshenziswa.
Izindebe zomlomo ze-elastomeric ziyi-shaft seal ezivame kakhulu emakethe futhi zibunjwa ngqo endlini yensimbi ukuze zinikeze ukuqina okudingekayo.Iningi le-elastomeric rubber lip seal lisebenzisa i-extension spring njengendlela yokulayisha ukuqinisekisa ukuvala okuqinile.Ngokuvamile intwasahlobo itholakala ngenhla nje kwendawo yokuxhumana phakathi kwe-seal kanye ne-shaft, inikeza amandla adingekayo ukuze aphule ifilimu yamafutha.
Ezimweni eziningi, i-BD SEALS PTFE lip seals ayisebenzisi isandiso sentwasahlobo ukuvala.Esikhundleni salokho, lezi zimpawu ziphendula kunoma yimuphi umthwalo osetshenziswa ekunwetshweni kodebe oluvalayo kanye ne-radius egobayo eyenziwe umzimba wensimbi.I-PTFE lip seal isebenzisa iphethini yokuxhumana ebanzi phakathi kodebe ne-shaft kune-elastomeric lip seal.I-PTFE lip seal nayo inomthwalo othize ophansi, kodwa ibe nendawo yokuxhumana ebanzi.Umklamo wabo wawuhloselwe ukunciphisa amazinga okugqoka futhi kwenziwa izinguquko ukuze kuncishiswe umthwalo weyunithi, owaziwa nangokuthi i-PV.
Uhlelo lokusebenza olukhethekile lwe-PTFE lip seal ukuvala ama-shafts ajikelezayo, ikakhulukazi ama-shaft ajikeleza ngesivinini esikhulu.Uma izimo ziyinselele futhi zingaphezu kwamandla azo, ziyindlela enhle kakhulu ye-elastomeric rubber lip seal.
Empeleni, izigxivizo zomlomo ze-PTFE zenzelwe ukuvala igebe phakathi kwezigxivizo zezindebe ze-elastomeric zendabuko kanye ne-mechanical carbon face seal.Zingasebenza ngengcindezi ephakeme nesivinini kunezindebe zomlomo eziningi ze-elastomeric, okuzenza zibe enye indlela enhle kakhulu.
Ukusebenza kwawo akuthintwa kabi izindawo ezinokhahlo ezinamazinga okushisa aphezulu, imidiya egqwalayo, isivinini esiphezulu, ukucindezela okukhulu noma ukuntuleka kokugcotshwa.Isibonelo esihle kakhulu samakhono aphezulu e-PTFE ama-compressor komoya ezimboni, alinganiselwe ukusebenza ngaphezu kwamahora angu-40,000 ngaphandle kokunakekelwa.
Kunemibono eyiphutha mayelana nokukhiqizwa kwe-PTFE lip seal.I-elastomeric rubber lip seals icindezela irabha ngokuqondile emzimbeni wensimbi.Umzimba wensimbi unikeza ukuqina okudingekayo, futhi i-elastomer ithatha ingxenye yokusebenza yophawu.
Ngokuphambene, izindebe ze-PTFE azikwazi ukuphonswa ngqo endlini yensimbi.Impahla ye-PTFE ayingeni esimweni esiwuketshezi noma esimweni esivumela okokusebenza ukuthi kugeleze;Ngakho-ke, i-PTFE lip seal yenziwa ngomshini wokufaka uphawu, bese ihlanganiswa ibe yindlu yensimbi, bese iyayibopha ngomshini.
Uma ukhetha isixazululo sophawu olunembile lwezinhlelo zokusebenza ezijikelezayo, izici ezibalulekile ezihlanganisa isivinini se-shaft, isivinini esiphezulu, izinga lokushisa lokusebenza, i-sealing medium, kanye nokucindezela kwesistimu kufanele kucatshangelwe ngokucophelela.Ziningi ezinye izimo zokusebenza okufanele uzicabangele lapho wenza isinqumo, kodwa lezi ezibalwe ngenhla yiyona eyinhloko.
Ngamalungelo kuza umthwalo omkhulu.Ngokuhamba kwesikhathi, ukugxila kwefekthri yethu kushintshele ezinhlelweni zokusebenza ezidinga izigxivizo zomlomo ze-PTFE ezidingeka kakhulu.Enye yezinzuzo ezibalulekile zalolu phawu amandla ayo okusebenza ezindaweni eziyinselele ezimbonini, ezezimoto kanye nezinhlelo ze-aerospace.
Angasebenza ngengcindezi ephakeme kanye nesivinini kumashafu ajikelezayo kune-elastomeric lip seal, futhi izinzuzo azigcini lapho.Ezinye izinzuzo ze-PTFE lip seal zihlanganisa:
BD SEALS wo ezivamile izindebe seal kukhona BD SEALS PTFE umzimba metal ezungezisayo izindebe seals kanye polymer seals, kokubili okungashintshana.Umehluko omkhulu phakathi kwabo ukuklama kwabo.Izigxivizo zezindlu zensimbi zisebenzisa insimbi yeshidi ukwakha indlu evalekile bese zifaka udebe oluvalayo ukuze ziqinise uphawu.
Eqanjwe ekuqaleni kuka-2003, i-BD SEALS lip seal yakhelwe ukusebenza ezindaweni ezinokhahlo kusukela ku-53°C kuya ku-232°C, izindawo zamakhemikhali ezinokhahlo, kanye nezindawo ezomile neziqhumayo.I-Dynamic PTFE rotary seals isetshenziswa kulezi zicelo ezilandelayo:
I-BD ivala ama-rotary seal cishe iminyaka eyishumi.Ukudalwa kwabo kwadingeka lapho i-BD SEALS iqala ukusebenza ekuxubeni nasekuhlanganiseni iziqhumane zokusetshenziswa kwezempi.Izindebe zomlomo we-Metal-cased zibhekwa njengezingafaneleki ngokuphelele le njongo ngenxa yokuthi kungenzeka ukuthi zihlangane ne-shaft ejikelezayo ye-explosive exutshwe.Kungakho onjiniyela be-BD SEALS abaklami bakha i-lip seal engenansimbi ngenkathi besagcina izinzuzo zayo ezibalulekile.
Uma usebenzisa izimpawu zamafutha, isidingo sezingxenye zensimbi siqedwa ngokuphelele ngoba uphawu lonke lwenziwa ngento efanayo ye-polymer.Ezimweni eziningi, i-elastomeric O-ring isetshenziswa phakathi kobubanzi bangaphandle bophawu kanye nebhore yezindlu zokukhwelana.Izindandatho ze-O zinikeza uphawu oluqinile oluqinile futhi zivimbela ukujikeleza.Ngokuphambene, izimpawu zomlomo zingenziwa ngezinto ezingaphezu kwezintathu ezihlukene futhi zifakwe endlini yensimbi.
Namuhla, uphawu lwangempela luye lwaveza izinguqulo eziningi ezihlukene ezilungele ukufakwa ensimini njengoba zingadingi amathuluzi akhethekile okufakwa futhi zifanele izinhlelo zokusebenza ezidinga ukuthi uphawu lususwe ukuze luhlanzwe.Ngenxa yokuklama kwazo okulula, lezi zimpawu zivame ukonga kakhulu.
I-BD SEALS PTFE lip seal, polymer seal nezinye izindebe ezivela ku-BD SEALS zishintsha kanjani izimpilo zethu zansuku zonke?
I-PTFE lip seal ihlinzeka ngezakhiwo zokuvala ezisezingeni eliphezulu kanye nokungqubuzana okuphansi ezindaweni ezomile noma ezilumayo.Zivame ukusetshenziselwa izinhlelo zokusebenza eziyinkimbinkimbi lapho isivinini sidingeka khona.
Imakethe ye-compressor yomoya iyisibonelo esihle sokuthi i-PTFE lip seal ithatha kanjani indawo ye-elastomeric kanye ne-carbon mechanical seal.Saqala ukusebenza nezinkampani eziningi ezinkulu ze-compressor air maphakathi nawo-1980, sishintsha izindebe zezindebe zenjoloba ezivuzayo kanye ne-carbon face seal.
Idizayini yasekuqaleni yayisekelwe esicinisweni somlomo esinengcindezi ephezulu, kodwa ngokuhamba kwesikhathi, njengoba isidingo sikhula futhi kudingeka ukusebenza okuphezulu, uphawu lwaklanyelwe ukuba lube neqanda elivuzayo nempilo yesevisi eyandisiwe.
Ubuchwepheshe obusha buthuthukisiwe ukuze bube nokuphila okungaphezu kokuphindwe kabili ngenkathi kugcinwa ukulawula ukuvuza okuqinile ngaso sonke isikhathi.Njengomphumela, i-BD SEALS PTFE lip seal ibhekwa njengezinga lemboni, ihlinzeka ngamahora angaphezu kuka-40,000 wesevisi yamahhala.
I-PTFE lip seal ihlinzeka ngokulawula ukuvuza okuphakeme futhi iyakwazi ukusebenza ukusuka ku-1000 kuya ku-6000 rpm ngezithako ezihlukahlukene kanye nesikhathi eside (amahora angu-15,000), ukunciphisa izimangalo zewaranti.I-Omniseal Solutions™ inikeza ama-shaft seals embonini yokuminyanisa ngezikulufo ezinobubanzi obusuka ku-0.500 kuya ku-6000 amayintshi (13 kuya ku-150 mm).
Izixube zingenye indawo yezimboni lapho ukwenziwa ngokwezifiso kwezimpawu kusakazeke kabanzi.Amakhasimende e-BD SEALS ' kulo mkhakha adinga ama-seal akwazi ukuphatha ukuchezuka kwe-shaft futhi aphume aze afike ku-0.300 in. (7.62 mm), okuyinani elibalulekile lokuphuma kweshaft enamandla.Ukuze uxazulule le nkinga futhi uthuthukise isivinini sokusebenza, i-Omniseal Solutions™ inikezela ngomklamo onelungelo lobunikazi elintantayo lokuvalwa kwezindebe.
I-BD SEALS LIP seal kulula ukuyifaka, ihlangabezana nezidingo eziqinile zokuvuza ze-EPA, futhi iwuwoyela nokupholisa okuhambisanayo ukuze kusetshenziswe ezindaweni ezivalekile kuyo yonke impilo yephampu.
Ngaphezu kwalokho, izindebe zethu zomlomo zenzelwe izimo zokuvala eziguquguqukayo, isivinini esidlulele, izinkinga zengcindezi nezinga lokushisa, nezinye izinhlelo zokusebenza eziningi.
Izigxivizo zabo zibuye zisetshenziswe emishinini edinga izinto ezigunyazwe yi-FDA ukuze zisetshenziswe emishini efana nale:
Zonke lezi zinhlelo zokusebenza zidinga ukumelana ne-seal ephansi kakhulu ukuze kuncishiswe izinga lokushisa.Ngokungeziwe ekuhlangabezaneni nezindinganiso ze-FDA, izimpawu kufanele zingabi nazimbotshana ezingase zibangele ukuminyana kwezinto ukuthi zivalwe, futhi kufanele zihambisane nama-asidi, ama-alkali nama-ejenti okuhlanza.Kufanele futhi zimelane nokuwashwa komfutho ophezulu futhi ziphumelele ukuhlolwa kwe-IP69K.
I-BD SEALS lip seal isetshenziswa kumayunithi wamandla asizayo (APU), izinjini ze-turbine yegesi, iziqalisi, ama-alternator namajeneretha, amaphampu kaphethiloli, izinjini zokucindezela (RAT) kanye nama-flap actuators, enye yezimakethe ezinkulu.
I-APU yenziwe yasebenza ku-US Airways Flight 1549 (“Miracle on the Hudson”) ukuze inikeze amandla endizeni ukuze ihlale ngokuphephile.I-Omniseal Solutions™ izindebe zomlomo kanye ne-spring seal zifakiwe kusistimu eyinhloko yale ndiza, ebhekwa njengebalulekile ekundiza futhi kufanele isebenze ngo-100% lapho ithunyelwa.
Kunezizathu eziningi zokuthi kungani abakhiqizi be-aerospace bathembele kulezi zimpawu zomlomo.Izindebe zomlomo eziklanywe ngokukhethekile ze-BD SEALS zinikeza uphawu oluqinile nokusebenza okuthuthukisiwe kunezimpawu ze-elastomeric eziqhathaniswayo.Futhi zidinga isikhala esincane kune-mechanical carbon mechanical seals kuma-turbine shafts nama-gearbox angaphandle.
Angakwazi ukumelana namazinga okushisa asuka ku -65°F kuya ku-350°F (-53°C kuya ku-177°C) kanye nezingcindezi ezifika ku-25 psi (0 kuya ku-1.7 bar), anesivinini esivamile sobuso esingamamitha angu-2000 kuya kwangu-4000 ngomzuzu (10 kuya ku-1. 20 m/s).Ezinye izixazululo ze-BD SEALS kule ndawo zingasebenza ngesivinini esingaphezu kwamafithi angu-20,000 ngomzuzu, okulingana namamitha angu-102 ngomzuzwana.
Enye imakethe enkulu izigxivizo zenjini yezindiza, lapho kusetshenziswa khona ama-lip seal abakhiqizi abakhulu benjini yezindiza.I-BD SEALS lip seal nayo isetshenziswa ezinjinini zejethi ze-turbofan.Lolu hlobo lwenjini lufakwe isistimu yegiya ehlukanisa ifeni yenjini ne-compressor ene-low pressure kanye ne-turbine, okuvumela imojula ngayinye ukuthi isebenze ngesivinini esiphezulu.
Ngakho, banganikeza ukusebenza kahle okwandisiwe.Indiza evamile ishisa cishe ingxenye yelitha likaphethiloli ngemayela, futhi izinjini ezisebenza kahle kakhudlwana kulindeleke ukuthi zonge isilinganiso samaRandi ayizigidi ezingu-1,7 ezindlekweni zokusebenza zendiza ngayinye ngonyaka.
Ngaphezu kokusekela izimboni zezentengiselwano, i-PTFE lip seal nayo isetshenziswa kwezempi, ikakhulukazi uMnyango Wezokuvikela.Lokhu kuhlanganisa ukusetshenziswa ezindizeni zokulwa, ezithwala izindiza kanye nezindiza ezinophephela emhlane.
PTFE izindebe seals kabanzi ezindizeni zempi;Isibonelo, kubalandeli bokuphakamisa okuqondile, ama-gearbox motor seal kanye nezimpawu zabo ezilayishwe entwasahlobo nazo zisetshenziselwa izingxenye ze-rotor head seal, ama-flap nama-slats, kanye nemishini ebalulekile ohlelweni lokubhuleka olusetshenziselwa ukubamba indiza.Yahlala phezu kompheme.Kubalulekile ukuqinisekisa ukuthi okokusebenza okusetshenziselwa lezi zinhloso akusebenzi kabi.
I-BD SEALS ip seal ifanele ezinye zezinhlelo zokusebenza eziyinselele kakhulu njengama-crankshafts, abasabalalisi, amaphampu kaphethiloli kanye nama-cam seal atholakala embonini yokugijima, lapho ngokwemvelo izinjini zivame ukuphushwa emikhawulweni yazo.
Isikhathi sokuthumela: Dec-24-2023