Wake wazibuza yini umehluko phakathi carbon kanyei-silicon carbide mechanical seals? Kulokhu okuthunyelwe kwebhulogi, sizocwila ezintweni eziyingqayizivele kanye nokusetshenziswa kwento ngayinye. Ekugcineni, uzoba nokuqonda okucacile kokuthi ungayikhetha nini i-carbon noma i-silicon carbide ngezidingo zakho zokuvala, okukunika amandla okwenza izinqumo ezinolwazi kumaphrojekthi akho.
Izakhiwo ze-Carbon Seal Faces
Ikhabhoni iyinto esetshenziswa kakhuluubuso be-mechanical sealngenxa yezakhiwo zayo eziyingqayizivele. Inikeza izici ezinhle kakhulu zokugcoba, ezisiza ukunciphisa ukungqubuzana nokugqoka phakathi kobuso bophawu ngesikhathi sokusebenza. Ikhabhoni iphinde ikhombise ukusebenza kahle kwe-thermal, eyivumela ukuthi ikhiphe ukushisa kahle futhi ivimbele ukunqwabelana kwezinga lokushisa okudlulele endaweni esetshenziswayo yokuvala.
Enye inzuzo yobuso be-carbon seal ikhono lazo lokuhambisana nokungapheleli okuncane noma ukungahambi kahle endaweni yokukhwelana. Lokhu kuvumelana nezimo kuqinisekisa ukuvala okuqinile futhi kunciphisa ukuvuza. Ikhabhoni nayo imelana nezinhlobonhlobo zamakhemikhali, okuyenza ifaneleke ukusetshenziswa ezimbonini ezihlukahlukene.
Izakhiwo ze-Silicon Carbide Seal Faces
I-Silicon carbide (SiC) ingenye inketho ethandwayo yobuso be-mechanical seal ngenxa yokuqina kwayo okungavamile kanye nokumelana nokugqoka. Ubuso be-SiC seal bungamelana nezimo zokusebenza ezinzima, okuhlanganisa izingcindezi eziphezulu, amazinga okushisa, nemidiya elimazayo. I-thermal conductivity ephezulu yempahla isiza ukuqeda ukushisa, ivimbele ukuhlanekezela okushisayo nokugcina ubuqotho bophawu.
Ubuso be-SiC seal bubuye bunikeze ukumelana kwamakhemikhali okuhle kakhulu, okubenza bafanelekele ukusetshenziswa ezindaweni ezigqwalile. Ukuqedwa okubushelelezi kwe-SiC kunciphisa ukungqubuzana nokuguga, kunwebe impilo yophawu lwemishini. Ukwengeza, i-modulus ephezulu ye-SiC yokunwebeka inikeza ukuzinza kwe-dimensional, iqinisekisa ukuthi ubuso bophawu buhlala buyisicaba futhi buhambisana ngesikhathi sokusebenza.
Umehluko Phakathi Kwekhabhoni neSilicon Carbide
Ukuqanjwa Nesakhiwo
Izigxivizo ze-Carbon mechanical zenziwe nge-graphite, uhlobo lwekhabhoni eyaziwa ngezici zayo zokuzigcoba kanye nokumelana nokushisa nokuhlasela kwamakhemikhali. I-graphite ngokuvamile ifakwe inhlaka noma insimbi ukuze kuthuthukiswe izici zayo zokusebenza.
I-Silicon carbide (i-SiC) iyinsimbi yobumba eqinile, engagqoki eyenziwe nge-silicon ne-carbon. Inesakhiwo sekristalu esinomthelela ebukhuni bayo obuhle kakhulu, ukuqhutshwa kokushisa okushisayo, nokuzinza kwamakhemikhali.
Ukuqina Nokumelana Nokugqoka
I-silicon carbide inzima kakhulu kunekhabhoni, inobunzima be-Mohs obungu-9-9.5 uma kuqhathaniswa no-1-2 wegraphite. Lobu bunzima obuphakeme benza i-SiC imelane kakhulu nokuguga okuhugayo, ngisho nasezinhlelweni zokusebenza ezinzima ezinemidiya ehubhukayo.
Izigxivizo ze-Carbon, nakuba zithambekile, zisanikeza ukumelana okuhle nokugqokwa ezindaweni ezinganasi. Imvelo yokuzithambisa ye-graphite isiza ukunciphisa ukungqubuzana nokuguga phakathi kobuso bophawu.
Ukumelana Nokushisa
Kokubili i-carbon ne-silicon carbide inezakhiwo ezinhle kakhulu zokushisa okuphezulu. I-Carbon seal ingasebenza ngokujwayelekile emazingeni okushisa afika ku-350°C (662°F), kuyilapho ama-silicon carbide seal akwazi ukumelana namazinga okushisa aphakeme, ngokuvamile adlula ama-500°C (932°F).
I-thermal conductivity ye-silicon carbide iphakeme kunaleyo yekhabhoni, okuvumela ama-SiC seal ukuthi ahlakaze ukushisa ngempumelelo kakhulu futhi agcine izinga lokushisa eliphansi lokusebenza endaweni yokubeka uphawu.
Ukumelana Kwamakhemikhali
I-Silicon carbide ayisebenzi ngamakhemikhali futhi imelana nokuhlaselwa kuma-acids amaningi, izisekelo, nezincibilikisi. Kuyinketho enhle kakhulu yokuvala imidiya eyonaka kakhulu noma enolaka.
Ikhabhoni iphinde inikeze ukumelana kwamakhemikhali okuhle, ikakhulukazi kuma-organic compounds nama-asidi anga-oxidizing nezisekelo. Kodwa-ke, ingase ingafaneleki kancane ezindaweni ezine-oxidizing enamandla noma izinhlelo zokusebenza ezinemidiya ephezulu ye-pH.
Izindleko Nokutholakala
Izigxivizo ze-Carbon mechanical ngokuvamile zibiza kancane kune-silicon carbide seals ngenxa yezindleko eziphansi zezinto zokusetshenziswa kanye nezinqubo zokukhiqiza ezilula. I-Carbon seal itholakala kabanzi futhi ingakhiqizwa ngamamaki ahlukahlukene kanye nokucushwa.
I-Silicon carbide seals ikhethekile kakhulu futhi imvamisa iza ngentengo ephezulu. Ukukhiqizwa kwezingxenye ze-SiC zekhwalithi ephezulu kudinga amasu okukhiqiza athuthukile kanye nokulawulwa kwekhwalithi okuqinile, okunomthelela ekwenyukeni kwezindleko.
Isikhathi Sokusebenzisa I-Carbon Seal
Ubuso be-Carbon seal bulungele ukusetshenziswa okubandakanya ukucindezela okuphansi kuya kokumaphakathi kanye namazinga okushisa. Avame ukusetshenziswa kumaphampu amanzi, izixube, nama-agitators lapho imidiya yokuvala ingalibi kakhulu noma igceme. Izigxivizo ze-Carbon nazo zifanelekile ukuvala uketshezi olunezinto ezingezinhle zokugcoba, njengoba i-carbon material ngokwayo inikeza ukuthambisa.
Kuzinhlelo zokusebenza ezinemijikelezo yokuqala yokumisa noma lapho i-shaft izwa khona ukunyakaza kwe-axial, ubuso be-carbon seal bungavumela lezi zimo ngenxa yezindawo zabo zokuzigcoba kanye nekhono lokuhambisana nokungahambi kahle okuncane endaweni yokukhwelana.
Lapho Usebenzisa I-Silicon Carbide Seal
Ubuso be-silicon carbide seal bukhethwa ezinhlelweni ezibandakanya ukucindezela okuphezulu, amazinga okushisa, kanye nemidiya elimazayo noma ebolayo. Avame ukusetshenziswa ezinqubweni ezifunwa yizimboni, njengokukhiqizwa kukawoyela negesi, ukucutshungulwa kwamakhemikhali, nokukhiqizwa kwamandla.
Izigxivizo ze-SiC nazo zifanelekile ukuvala uketshezi oluhlanzekile kakhulu, njengoba lungangcolisi imidiya evalwayo. Kuzinhlelo zokusebenza lapho imidiya yokuvala inezinto zokugcoba ezingezinhle, i-coefficient ephansi ye-SiC yokungqubuzana nokumelana nokugqoka kuyenza ibe ukukhetha okuhle kakhulu.
Lapho uphawu lomshini lungaphansi kokushintshashintsha kwezinga lokushisa okuvamile noma ukushaqeka kwe-thermal, i-thermal conductivity ephezulu ye-SiC nokuzinza kwe-dimensional kusiza ukugcina ukusebenza kwe-seal nokuphila isikhathi eside. Ukwengeza, izimpawu ze-SiC zilungele izinhlelo zokusebenza ezidinga impilo ende yesevisi nokunakekelwa okuncane ngenxa yokuqina kwazo okukhethekile kanye nokumelana nokugqokwa.
Imibuzo Evame Ukubuzwa
Iyiphi impahla yophawu lukamshini evame ukusetshenziswa kakhulu?
Ikhabhoni isetshenziswa kakhulu ezimpawu zemishini ngenxa yezindleko zayo eziphansi kanye nokusebenza okwanele ezinhlelweni eziningi.
Ingabe i-carbon ne-silicon carbide seal ingasetshenziswa ngokushintshana?
Kwezinye izimo, yebo, kodwa kuya ngezidingo ezithile zohlelo lokusebenza, njengezinga lokushisa, ingcindezi, nokuhambisana koketshezi.
Ekuphetheni
Lapho ukhetha phakathi kwe-carbon ne-silicon carbide mechanical seals, cabangela izidingo ezithile zohlelo lokusebenza. I-Silicon carbide inikeza ubulukhuni obuphakeme nokumelana namakhemikhali, kuyilapho i-carbon inikeza amandla angcono omile omile.
Isikhathi sokuthumela: Jul-15-2024