Koj paub ntau npaum li cas txog lub twj tso kua mis sealing
1. Tshuaj lom neeg lub twj tso kua mis packing foob yog cov txheej txheem ntawm muab cov compressible thiab resilient packing rau hauv lub thawv ntim, uas tso siab rau lub axial compression quab yuam ntawm lub caj pas los hloov nws mus rau hauv radial sealing quab yuam, yog li ua tiav cov nyhuv sealing. Txoj kev sealing no yog hu ua packing sealing, thiab lub ntim no hu ua sealing packing. Vim nws cov qauv yooj yim, hloov tau yooj yim, tsis tshua muaj nqi, yoog raws rau kev ceev, siab, thiab ntau yam kev tshaj tawm, ntim sealing yog siv dav hauv kev tsim cov twj siv tshuaj.
2. Dab tsi yog qhov ntim ntim rau cov twj siv tshuaj?
Tshuaj twj tso kua mis packing foob yog cov txheej txheem ntawm muab compressible heev thiab resilient packing rau hauv lub thawv ntim, uas tso siab rau lub axial compression quab yuam ntawm lub caj pas los hloov nws mus rau hauv radial sealing quab yuam, yog li ua tiav cov nyhuv sealing. Txoj kev sealing no yog hu ua packing sealing, thiab lub ntim no hu ua sealing packing. Vim nws cov qauv yooj yim, hloov tau yooj yim, tsis tshua muaj nqi, yoog raws rau kev ceev, siab, thiab ntau yam kev tshaj tawm, ntim sealing yog siv dav hauv kev tsim cov twj siv tshuaj.
Hais txog lub sealing ntawm lub twj tso kua mis
1. Cov dej, roj, roj, thiab lwm yam kua nruab nrab siv rau lub hom phiaj no yog hu ua "cov kua sealing". Lub hauv paus ntsiab lus ntawm sealing kua tuaj yeem piav qhia los ntawm cov ntsiab lus tseem ceeb ntawm cov tshuab ua kua. Lub tswv yim ntawm kev siv cov kua sealing kuj qhia tau hais tias cov kua sealing yuav tsum xau tawm mus rau qhov ntau dua lossis tsawg dua los ntawm cov kev taw qhia ntawm lub sealing ntev, vim tias lub zog ntawm cov kua sealing nws tus kheej siab tshaj qhov nruab nrab ntawm ob qhov kawg ntawm lub sealing. ntev, tiv thaiv cov xov xwm sib txawv ntawm ob qho kawg los ntawm sab nraud tag nrho qhov ntev sealing. Ntawm no, sealing yog rau qhov nruab nrab ua haujlwm, thiab cov dej xau yog rau cov kua sealing. Cov kua sealing tsis tuaj yeem muaj kev phom sij rau qhov nruab nrab ua haujlwm. Obviously, cov kua sealing tseem ua raws li cov roj nplua nyeem thoob plaws tag nrho qhov ntev sealing. Hauv cov cuab yeej no, txoj haujlwm ntawm lub nplhaib lubrication muaj qhov tseem ceeb heev. Yog hais tias lub nplhaib lubrication yog teem ze rau hauv qab ntawm lub thawv ntim, qhov kev tiv thaiv ntws mus rau lub sealing ntaus ntawv yog ntau dua li qhov kev tiv thaiv nyob rau hauv qhov kev taw qhia, yog li cov sealing kua ntws nyob rau hauv lub opposite direction ntawm lub ntaus ntawv.
Dab tsi yog qhov sealing ua haujlwm ntawm lub twj tso kua mis? Muaj pes tsawg hom?
1. Cov twj centrifugal raug kaw nrog cov ntsaws ruaj ruaj sab nraud. Cov xau ntawm ntsug centrifugal twj tso kua mis tshwm sim ntawm qhov chaw sib khi. Mechanical seals thiab packing seals yog cov ntsaws ruaj ruaj rau shielded pipeline centrifugal twj. Kev ua haujlwm ntawm fluoroplastic lined centrifugal twj tso kua mis ncej foob ntaus ntawv: yuav tsum muaj qhov sib txawv ntawm lub rotor thiab lub twj tso kua mis, thiab cov khoom sib khi yog ntsia ntawm qhov chaw uas lub twj tso kua mis txuas tawm ntawm lub twj tso kua mis.
Dab tsi yog cov qauv ntawm lub twj tso kua mis sealing
1. Lub ntsiab sealing cov ntaub ntawv ntawm centrifugal twj tso kua mis ncej kawg muaj xws li packing seal, mechanical seal, floating nplhaib foob, thiab labyrinth foob. Cov foob pob yog tsim los ntawm cov qog, ntim, dej foob nplhaib, ntim lub thawv, thiab lwm yam. Nws yog tam sim no feem ntau siv ncej foob rau cov twj centrifugal zoo tib yam. Thaum lub twj tso kua mis centrifugal ua haujlwm, lub caj pas compresses lub ntim kom nruj, txo cov xau thiab ua tiav lub hom phiaj ntawm kev sib khi.
Dab tsi yog qhov ua haujlwm ntawm cov kua sealing hauv lub twj tso kua mis
Lub luag haujlwm ntawm lub twj tso kua mis sealing dej yog:
Cov dej siab siab hauv cov twj tso kua mis pub, txawm tias dhau los ntawm cov khoom sib khi, tseem muaj qee qhov siab. Txhawm rau tiv thaiv cov dej hauv lub twj tso kua mis los ntawm kev tawm ntawm qhov sib txawv ntawm cov ncej thiab cov khoom sib khi, ib qho dej yog qhia los ntawm qhov hluav taws xob ntawm lub twj tso kua mis condensate los yog cov dej desalinated lub ntsiab yeeb nkab li sealing dej!
Qhov twg yog lub kaw chamber ntawm lub twj tso kua mis
Sealing chamber siab: Tsawg dua los yog sib npaug rau 5Mpa thaum cov yeeb nkab corrugated raug rau sab nraud, Tsawg dua los yog sib npaug rau 5Mpa thaum cov yeeb nkab corrugated raug rau sab hauv. Sealing chamber kub: 20 degree ~ 400 degree. Linear tshaj tawm: Tsawg dua lossis sib npaug li 15m / s. HBM5 hom tshuab foob yog ib qho kawg, sib npaug, tig hlau corrugated yeeb nkab tshuab foob. Lub nplhaib dynamic yog txuas nrog lub tes tsho ncej tag nrho, thiab tag nrho cov txheej txheem ntawm cov tshuab foob tau ntim, ua kom yooj yim rau kev teeb tsa. Lub twj tso kua mis yog hloov kho sab nraud, ua rau kev teeb tsa ntawm cov tshuab ntsaws ruaj ruaj yooj yim dua.
Lub hauv paus ntsiab lus ntawm lub twj tso kua mis sealing
1. Lub hauv paus ntsiab lus tseem ceeb ntawm cov tshuab foob yog siv qhov tsim nyog ua ke ntawm dynamic thiab zoo li qub rings kom ua tiav cov nyhuv sealing ntawm lub twj tso kua mis. Cov twj tso kua mis puas tuaj yeem tshem tawm cov dej xau?
Qhov teeb meem ntawm kev sib khi hauv cov twj siv dav dav yog tsom rau qhov sib txawv ntawm qhov sib txawv hauv lub cev thiab sab nraud, uas tsis tuaj yeem tshem tawm.
Txawm li cas los xij, sealing tsis tas tshem tawm cov xau, tab sis theej tswj lawv nyob rau hauv qhov kev lees paub rau txhua tus. Lub teb chaws tus qauv rau kev xau ntawm cov cuab yeej zoo tib yam yog 35ml / h, uas yog qhov yooj yim rau kev ua tiav.
2. Lub tshuab sealing zoo li qub yog qhov yooj yim. Lub sealing interface ntawm cov roj foob yog lub nplhaib nqaim nrog qhov dav ntawm 0102mm. Nyob rau hauv qhov kev txiav txim ntawm preloading (feem ntau yog lub caij nplooj ntoos hlav), feem ntau yog qhov nruab nrab radial tiv tauj siab li ntawm 1N / mm2 ntawm cov roj foob thiab cov ncej; Thaum cov roj lubricating siab qis dua qhov ntsuas siab, cov roj foob tiv thaiv nws los ntawm kev xau mus rau sab nraud.
Txawm li cas los xij, static non to leaking oil seals tseem tuaj yeem xau thaum ua haujlwm. Thaum lub sijhawm ua haujlwm ib txwm muaj, cov roj ua ntej nkag mus rau qhov nqaim ntawm kev sib cuag ntawm cov roj foob thiab cov ncej los ntawm kev ua haujlwm capillary thiab cov twj tso kua mis ntawm cov ntaub so ntswg (qhov roughness ntawm nqaim band ntawm cov roj foob thiab cov ncej).
Thaum nkag mus rau qhov chaw tiv tauj no, cov nyhuv twj tso kua mis pib siv.
Lub cascade micro twj tso kua mis nyob rau sab atmospheric muaj peev xwm siv tau siab, uas ua rau cov kua dej dynamic siab sib npaug ntawm lub hauv paus no. Tam sim no, lub foob ua haujlwm ntawm cov yeeb yaj kiab roj kom tswj tau lub xeev kaw, thiab lub sijhawm ua haujlwm ntawm lub sijhawm no yog lub xeev lubrication. Qhov no yog tus qauv microscopic ntawm cov roj sealing mechanism.
3. Mechanical foob
4. Cov twj tso kua dej twj tso kua mis feem ntau siv cov khoom siv foob. Lub hauv paus ntsiab lus yog tias cov tshuab foob yog cov cuab yeej uas tiv thaiv cov kua dej los ntawm kev ua kom tsawg kawg ib khub ntawm qhov kawg ntawm lub ntsej muag perpendicular mus rau lub axis ntawm kev sib hloov hauv kev sib cuag thiab zawv zawg txheeb ze rau ib leeg nyob rau hauv qhov kev txiav txim ntawm cov kua siab thiab cov nyiaj them poob haujlwm elasticity (los yog sib nqus quab yuam) , nrog rau kev koom tes ntawm kev pabcuam cov ntsaws ruaj ruaj. Mechanical seal belongs rau ib hom kev foob, feem ntau yog siv rau kev sib khi ntawm cov khoom sib hloov. Los ntawm kev koom tes nrog cov tswv yim tsim nyog, nws tuaj yeem ua tiav cov kab los yog xoom xoom ntawm qhov nruab nrab (kev sib khi roj / kua yuav nkag mus rau hauv nruab nrab).
Cov txheej txheem sealing zoo rau cov twj tso kua mis
1. Cov ntsaws ruaj ruaj tuaj yeem muab faib ua cov ntim khoom muag, cov khoom ntim nyuaj, thiab cov khoom ntim molded raws li lawv cov yam ntxwv. Cov ntim khoom feem ntau yog woven los ntawm cov ntaub ntawv uas muaj cov kab muag muag, tau ntim rau hauv lub thawv ntim nrog cov square zoo li lub strips, thiab nias los ntawm lub hau los tsim lub zog compressive, yuam cov ntim rau nias tawm tsam lub sealing nto (sab nrauv ntawm ncej thiab sealing chamber), ua lub zog radial rau sealing nyhuv, yog li ua lub luag haujlwm sealing. Cov khoom tsim tau xaiv rau kev ntim ntawm cov khoom txiav txim siab qhov kev sib khi ntawm cov packing. Feem ntau hais lus, kev tsim khoom ntawm cov khoom ntim yog txwv los ntawm qhov kub, siab, thiab acidity ntawm qhov nruab nrab ua haujlwm. Tsis tas li ntawd, qhov roughness ntawm qhov chaw, eccentricity, thiab linear tshaj tawm ntawm cov khoom siv kho tshuab uas cov khoom ntim ua haujlwm kuj tseem muaj cov cai rau kev xaiv cov khoom ntim. Graphite packing muaj peev xwm tiv taus qhov kub thiab txias, thiab yog ib qho ntawm cov khoom siv tau zoo tshaj plaws rau kev daws teeb meem kev sib khi hauv qhov kub thiab txias.
2. Roj foob yog tus kheej nruj di ncauj foob nrog cov qauv yooj yim, me me, tus nqi qis, kev saib xyuas yooj yim, thiab me me torque. Nws tuaj yeem tiv thaiv cov pa nruab nrab, cov plua plav sab nraud thiab lwm yam khoom tsis zoo los ntawm kev nkag mus, thiab muaj peev xwm them nyiaj rau hnav. Txawm li cas los xij, nws tsis yog resistant rau kev kub siab thiab feem ntau yog siv nyob rau hauv tshuaj twj tso kua mis nyob rau hauv tsawg-siab daim ntaub ntawv. Thaum lub sij hawm ua hauj lwm ntawm cov tshuaj twj tso kua mis, lub siab lub taub hau generated los ntawm lub thib ob impeller sib npaug rau cov high-pressure kua ntawm lub qhov hluav taws xob ntawm lub ntsiab impeller, yog li ua tiav sealing.
3. Dry gas foob, raws li kev txij nkawm pub dawb sealing system uas tsis tas yuav tsum muaj lub sealing kawg lub ntsej muag txias los yog lubricating roj, yog hloov lub nplhaib nplhaib foob thiab labyrinth foob raws li lub ntsiab foob rau kev kub ceev centrifugal compressor ncej seals hauv kev lag luam petrochemical.
Centrifugal compressors thiab lwm lub tshuab ua kua dej ceev yog tsim nyog rau kev ua haujlwm ntawm qhov chaw me me ntawm cov txheej txheem roj nkag mus rau hauv qhov chaw yam tsis muaj kev puas tsuaj, xws li cua compressors, nitrogen compressors, thiab lwm yam. Maze foob yog ib qho kev sib khi ntawm cov hniav sib txuas ua ke. nyob ib ncig ntawm lub rotating ncej, tsim ib tug series ntawm interception kis thiab expansion kab noj hniav ntawm cov hniav. Lub kaw lus nruab nrab ua rau cov nyhuv throttling thaum hla dhau qhov khoob ntawm txoj kab tortuous maze kom ua tiav lub hom phiaj ntawm kev tiv thaiv kev tawm. Maze foob yog qhov yooj yim tshaj plaws sealing daim ntawv ntawm theem thiab ncej kawg ntawm centrifugal compressors. Raws li cov yam ntxwv sib txawv, nws tuaj yeem muab faib ua plaub hom: du, tortuous, stepped, thiab honeycomb.
4. Dab tsi yog cov yam ntxwv ntawm kev ntim cov ntsaws ruaj ruaj?
Cov ntsaws ruaj ruaj tuaj yeem muab faib ua cov ntim khoom muag, cov ntim ntim nyuaj, thiab molded ntim cov ntsaws ruaj ruaj raws li lawv cov yam ntxwv. Cov ntim khoom feem ntau yog woven los ntawm cov ntaub ntawv uas muaj cov kab muag muag, tau ntim rau hauv lub thawv ntim nrog cov square zoo li lub strips, thiab nias los ntawm lub hau los tsim lub zog compressive, yuam cov ntim rau nias tawm tsam lub sealing nto (sab nrauv ntawm ncej thiab sealing chamber), ua lub zog radial rau sealing nyhuv, yog li ua lub luag haujlwm sealing. Cov khoom tsim tau xaiv rau kev ntim ntawm cov khoom txiav txim siab qhov kev sib khi ntawm cov packing. Feem ntau hais lus, kev tsim khoom ntawm cov khoom ntim yog txwv los ntawm qhov kub, siab, thiab acidity ntawm qhov nruab nrab ua haujlwm. Tsis tas li ntawd, qhov roughness ntawm qhov chaw, eccentricity, thiab linear tshaj tawm ntawm cov khoom siv kho tshuab uas cov khoom ntim ua haujlwm kuj tseem muaj cov cai rau kev xaiv cov khoom ntim. Graphite packing muaj peev xwm tiv taus qhov kub thiab txias, thiab yog ib qho ntawm cov khoom siv tau zoo tshaj plaws rau kev daws teeb meem kev sib khi hauv qhov kub thiab txias.
5. Cov kua sealing yog dab tsi?
Cov dej, roj, roj, thiab lwm yam dej nruab nrab uas siv rau lub hom phiaj no yog hu ua "cov kua sealing". Lub hauv paus ntsiab lus ntawm sealing kua tuaj yeem piav qhia los ntawm cov ntsiab lus tseem ceeb ntawm cov tshuab ua kua. Lub tswv yim ntawm kev siv cov kua sealing kuj qhia tau hais tias cov kua sealing yuav tsum xau tawm mus rau qhov ntau dua lossis tsawg dua los ntawm cov kev taw qhia ntawm lub sealing ntev, vim tias lub zog ntawm cov kua sealing nws tus kheej siab tshaj qhov nruab nrab ntawm ob qhov kawg ntawm lub sealing. ntev, tiv thaiv cov xov xwm sib txawv ntawm ob qho kawg los ntawm sab nraud tag nrho qhov ntev sealing. Ntawm no, sealing yog rau qhov nruab nrab ua haujlwm, thiab cov dej xau yog rau cov kua sealing. Cov kua sealing tsis tuaj yeem muaj kev phom sij rau qhov nruab nrab ua haujlwm.
Obviously, cov kua sealing tseem ua raws li cov roj nplua nyeem thoob plaws tag nrho qhov ntev sealing. Hauv cov cuab yeej no, txoj haujlwm ntawm lub nplhaib lubrication muaj qhov tseem ceeb heev. Yog hais tias lub nplhaib lubrication yog teem ze rau hauv qab ntawm lub thawv ntim, qhov kev tiv thaiv ntws mus rau lub sealing ntaus ntawv yog ntau dua li qhov kev tiv thaiv nyob rau hauv qhov kev taw qhia, yog li cov sealing kua ntws nyob rau hauv lub opposite direction ntawm lub ntaus ntawv.
