Tsim nyogKev Xaiv Lub Tshuab Sealyog qhov tseem ceeb tshaj plaws rau kev ua haujlwm hauv kev lag luam. Kev xaiv kom raug ncaj qha cuam tshuam rau kev ua haujlwm ntawm kev ntseeg tau thiab kev nyab xeeb. Cov ntaub ntawv kev lag luam qhia tias34% ntawm cov xwm txheej hauv kev lag luamkev siv cov tshuaj lom neeg txaus ntshai yog los ntawm cov foob tsis zoo lossis hnav, qhia txog qhov kev xav tau tseem ceeb no. Cov kev ua tsis tiav no tsim kev pheej hmoo rau cov neeg ua haujlwm, ua rau muaj kev puas tsuaj rau ib puag ncig, thiab ua rau lub sijhawm ua haujlwm kim heev. Yog li ntawd, ib txoj hauv kev los qhia txog Mechanical Seals yog qhov tseem ceeb. Txoj kev npaj no pab tiv thaiv cov teeb meem zoo li "Vim li cas kuv lub mechanical seal thiaj li xau?"thiab qhia cov kev txiav txim siab txog qhov tsim nyogHom Twj Tso Kua Mislos yog siab heevCov kev daws teeb meem kub siab rau kev foob pob hluav taws xobTom qab ua tiav ib qho kev qhia txogCov lus qhia txog kev teeb tsa lub foob pob hluav taws xobkuj ua kom muaj kev ua tau zoo tshaj plaws.
Cov Ntsiab Lus Tseem Ceeb
- Xaiv qhov yoglub tshuab foobtseem ceeb heev rau kev nyab xeeb ntawm lub Hoobkas thiab kom tsis txhob muaj teeb meem kim heev.
- Xav txog cov yam ntxwv ntawm cov kua, qhov kub, qhov siab, thiab qhov ceev ntawm lub qhov thaum xaiv lub foob.
- Qhov loj ntawm lub chamber foob thiab qhov txav ntawm lub qag kuj cuam tshuam rau lub foob twg ua haujlwm zoo tshaj plaws.
- Cov ntaub ntawv siv rau lub ntsej muag foob thiab lwm qhov yuav tsum phim cov tshuaj uas lawv kov.
- Ob lub foob muab kev nyab xeeb ntxiv rau cov kua dej txaus ntshai, thiab cov foob cartridge yooj yim dua rau kev teeb tsa thiab kho.
Cov Kev Cai Ua Haujlwm rau Cov Khoom Siv Mechanical
Xaiv qhov yoglub tshuab foobpib nrog kev nkag siab zoo txog qhov chaw ua haujlwm. Cov xwm txheej no cuam tshuam ncaj qha rau kev ua haujlwm ntawm lub foob thiab lub neej ntev.
Cov yam ntxwv ntawm cov kua dej ua haujlwm
Qhov xwm txheej ntawm cov kua txheej txheem cuam tshuam loj heev rau kev xaiv cov khoom siv foob. Cov kws ua haujlwm yuav tsum xav txog qhov xeb, kev sib txhuam, thiab viscosity ntawm cov kua. Cov kua xeb xav tau cov khoom siv tiv taus tshuaj lom neeg, thaum cov slurries abrasive xav tau cov ntsej muag foob tawv, tiv taus hnav. Qhov kub thiab siab ntawm cov kua kuj ua lub luag haujlwm tseem ceeb. Qhov kub siab ua rau cov khoom foob puas tsuaj, ua rau tsis ua haujlwm ua ntej. Qhov kub qis tuaj yeem ua rau cov khoom tawg, txo qhov yooj ywm thiab muaj peev xwm foob. Cov foob uas muaj kev kam rau qhov kub thiab txias dav yog qhov tseem ceeb rau cov ntawv thov nrog qhov kub thiab txias hloov pauv, xws li hauv cov nroj tsuag ua tshuaj lom neeg. Ntawm no, cov khoom siv siab heev tiv taus ntau yam los ntawm-40 ° C txog 200 ° C.
Kub thiab txias
Qhov kub thiab txias heev ua rau cov khoom siv foob puas tsuaj sai heev. Qhov kub thiab txias ua raukev hloov pauv tas mus li hauv elastomers, ua rau poob ntawm elasticity thiab sealing zog. Lawv kuj ua kom cov tshuaj tiv thaiv hauv cov yas engineering sai dua thiab txo qhov muaj zog ntawm cov hlau. Cov ntaub ntawv foob yuav tsum tiv taus qhov kub thiab txias ib puag ncig. Kev txias tsis txaus lossis kev xaiv cov khoom tsis raug ua rau muaj cua sov hauv zos, kev puas tsuaj ntawm cov khoom, thiab kev ua tsis tiav ntawm cov zaj duab xis lubricating. Kev hloov pauv kub sai ua rau muaj kev poob siab thermal, ua rau tawg hauv cov ntaub ntawv tawg xws li ceramics lossis Silicon Carbide.Kev hloov pauv ntawm qhov kub thiab txias ua rau cov foob pob nthuav dav thiab cog lusKev ua kom sov dua ua rau muaj kev ntxhov siab, ua rau tawg, hloov pauv, lossis poob peev xwm kaw.
Kev Ua Haujlwm Siab
Lub zog ntawm lub system qhia txog qhov xav tauhom kev foob kho tshuabCov ntawv thov siab yuav tsum muaj cov foob uas muaj peev xwm tiv taus lub zog loj. Cov foob uas tsim los rau qhov siab qis yuav tsis ua haujlwm zoo, ua rau xau. Piv txwv li, cov twj tso kua mis hauv cov chaw roj xav tau cov foob uas tsim tshwj xeeb rau qhov siab txog li ntau txhiab phaus ib square inch.Cov hom foob sib txawv tswj tau ntau yam kev txwv siab.
| Hom foob | Sib npaug | Tsis sib npaug | Siab Tshaj Plaws (psig) |
|---|---|---|---|
| Cov roj hmab elastomeric | x | 300 | |
| Cov roj hmab elastomeric | x | 1000 | |
| Cov hlau bellows | x | 300 | |
| O-ring thib ob foob | x | 200 | |
| O-ring thib ob foob | x | 1000 | |
| Polymer thib ob foob | x | 200 | |
| Polymer thib ob foob | x | 500 | |
| Cov dej khov ruaj khov | x | 400 | |
| Kev sib cais foob | x | 200 | |
| Ob lub foob roj | x | 300 | |
| Ob lub foob roj | x | 250 |
Cov ntsaws ruaj ruaj siab siab ua haujlwm txog li3,500 psi (240 bar)feem ntau. Cov qauv tsim tshwj xeeb ncav cuag txog li 10,000 psi (700 bar) ntawm qhov ceev qis ntawm qhov chaw. Rau qhov siab tshaj 3,000 psi (210 bar), kev sab laj tshwj xeeb txog kev tsim kho yuav tsum tau ua.
Kev Ceev thiab Kev Txav Mus Los ntawm Ncej
Qhov ceev ntawm lub qag muaj feem cuam tshuam rau kev ua haujlwm ntawm lub foob thiab lub neej ntev ntawm lub foob. Qhov kev sib hloov ceev dua ua rau muaj kev sib txhuam ntau dua ntawm cov ntsej muag ntawm lub foob. Qhov kev sib txhuam ntau ntxiv no ua rau muaj qhov kub siab dua thiab hnav sai dua. Piv txwv li, thaum qhov ceev ntawm lub qag tshaj qhov ceev ntawm lub qag.500 ko taw ib feeb (FPM), cov kws ua haujlwm yuav tsum txo qhov kev sib txhuam. Qhov kev nqis tes ua no pab tswj qhov kub siab uas tshwm sim hauv qab daim di ncauj foob, uas ua rau kev tiv thaiv kev ua qias tuaj nyuaj.
Thaum lub zog ntawm lub qhov (shaft) nce ntxiv mus, mus txog 3000 FPM, qhov kev ua haujlwm ntawm lub qhov (seal) thawj zaug yuav txo qis. Thaum lub zog ceev heev no, cov khoom siv hydrodynamic tseem ceeb heev. Cov khoom siv no ua rau lubrication zoo, txo qhov kub ntawm lub qhov (underlip), thiab ua rau lub qhov (seal) siv tau ntev dua. Yog tsis muaj cov kev ntsuas no, cov khoom siv tuaj yeem kub dhau thiab ua tsis tau haujlwm sai sai.
Tsis tas li ntawm qhov ceev ntawm kev tig, hom kev txav ntawm lub ncej kuj tseem cuam tshuam rau kev xaiv lub foob. Kev txav axial, lossis kev txav mus raws lub ncej txoj kab, xav tau cov foob uas tuaj yeem ua raws li qhov kev hloov pauv no yam tsis poob lawv qhov kev sib khi zoo. Kev txav radial, lossis kev txav perpendicular rau lub ncej txoj kab, xav tau cov foob uas muaj peev xwm tswj tau qhov me me ntawm lub ncej lossis kev khiav tawm. Kev txav ntau dhau hauv ob qho kev taw qhia tuaj yeem ua rau hnav ua ntej lossis lub foob tsis ua haujlwm. Yog li ntawd, cov kws ua haujlwm yuav tsum xaiv Cov Nkaus Mechanical Seals tshwj xeeb tsim los ua kom tau raws li qhov xav tau ntawm lub ncej ntawm daim ntawv thov. Qhov no ua kom ntseeg tau tias kev ua haujlwm txhim khu kev qha thiab tiv thaiv lub sijhawm tsis xav txog.
Kev Tsim Khoom Siv Uas Cuam Tshuam Rau Cov Khoom Siv Mechanical Seals
Kev tsim cov khoom siv muaj feem cuam tshuam loj heev rau kev xaiv cov Mechanical Seals uas tsim nyog. Cov kws ua haujlwm yuav tsum xav txog cov kev txwv ntawm lub cev thiab cov yam ntxwv ua haujlwm ntawm cov tshuab. Cov yam no cuam tshuam ncaj qha rau qhov haum ntawm lub foob, kev ua haujlwm, thiab lub neej ntev.
Qhov Loj ntawm Lub Rooj Sib Tsoo
Qhov loj ntawm lub chamber foob yog qhov tseem ceeb rau kev teeb tsa thiab ua haujlwm ntawm lub foob kom raug. Lub chamber yuav tsum muaj qhov chaw txaus rau hom foob xaiv, suav nrog nws cov khoom foob thawj thiab thib ob. Qhov chaw tsis txaus tuaj yeem ua rau lub rooj zaum tsis raug, hnav ua ntej lub sijhawm, lossis lub foob tsis ua haujlwm tag nrho. Ntawm qhov tod tes, lub chamber loj dhau yuav ua rau muaj kev txav mus los ntau dhau, ua rau lub foob tsis ruaj khov. Cov chaw tsim khoom tsim cov chamber foob kom haum rau cov hom foob tshwj xeeb, ua kom muaj kev ua haujlwm zoo tshaj plaws. Yog li ntawd, kev ntsuas qhov tseeb ntawm lub chamber bore, qhov tob, thiab txoj kab uas hla ntawm lub qhov yog qhov tseem ceeb ua ntej xaiv lub foob.
Kev khiav tawm ntawm lub ncej thiab kev hloov pauv
Qhov khiav tawm thiab qhov deflection ntawm lub shaft ncaj qha cuam tshuam rau alub tshuab fooblub peev xwm los tswj lub ntsej muag foob sib xws. Runout hais txog qhov kev hloov pauv ntawm qhov chaw ntawm lub qhov (shaft) los ntawm nws qhov axis tig tiag tiag. Deflection piav qhia txog kev khoov ntawm lub qhov (shaft) thaum muaj kev thauj khoom. Ob qho tib si ua rau muaj kev ntxhov siab ntawm lub ntsej muag foob thiab cov khoom sib khi thib ob. Kev khiav tawm lossis kev hloov pauv ntau dhau ua rau hnav tsis sib xws, xau ntau ntxiv, thiab txo lub neej foob. Rau feem ntau cov twj tso kua mis thiab cov txheej txheem sib khi, qhov kev khiav tawm ntawm lub qhov (radial shaft) uas txais tau yuav tsum poob ntawm0.002 txog 0.005 nti (0.05 - 0.13 hli)Ua dhau cov kev txwv no yuav tsum tau tsim lub foob uas muaj peev xwm ua kom txav tau ntau dua lossis xav tau kev kho khoom siv.
Qhov Chaw Teeb Tsa Muaj
Qhov chaw muaj rau kev teeb tsa lub foob feem ntau qhia txog hom foob uas tus kws ua haujlwm tuaj yeem xaiv. Qee daim ntawv thov muaj qhov txwv axial lossis radial clearance. Qhov kev txwv no yuav tiv thaiv kev siv cov khoom loj dua, nyuaj duacov foob pob hluav taws. Cov foob sib xyaw, uas xav tau kev sib dhos ua ke, feem ntau haum rau hauv qhov chaw nqaim dua. Txawm li cas los xij, cov foob cartridge muab kev teeb tsa yooj yim dua thiab txo qhov ua yuam kev ntawm tib neeg. Cov kws ua haujlwm yuav tsum sib npaug cov txiaj ntsig ntawm ntau hom foob sib txawv tawm tsam cov kev txwv ntawm cov khoom siv tsim. Lawv kuj yuav tsum xav txog qhov chaw rau cov txheej txheem pabcuam xws li cov kab dej ntws lossis kev sib txuas txias.
Kev Xaiv Khoom Siv Rau Cov Khoom Siv Mechanical Seals
Kev xaiv cov khoom sivyog ib kauj ruam tseem ceeb hauv kev xaiv cov Mechanical Seals zoo. Cov ntaub ntawv cuam tshuam ncaj qha rau qhov kev tiv thaiv ntawm lub foob rau kev hnav, xeb, thiab qhov kub thiab txias heev. Kev xaiv cov ntaub ntawv kom zoo ua kom ntseeg tau ntev thiab tiv thaiv kev ua tsis tiav ua ntej lub sijhawm.
Cov Khoom Siv Lub Ntsej Muag Tseem Ceeb
Cov ntaub ntawv tseem ceeb ntawm lub ntsej muag foob yuav tsum tiv taus cov xwm txheej ua haujlwm hnyav. Lawv ntsib kev sib cuag ncaj qha thiab kev sib txhuam. Rau cov kua dej ua haujlwm corrosive, cov engineers feem ntau xaiv cov ntaub ntawv tshwj xeeb.Cov sib xyaw ua ke ntawm cov pa roj carbon graphiteFeem ntau cov tshuaj lom neeg tsis muaj zog thiab nws tus kheej lubricating. Acid-grade carbon graphite ntsej muag, tsis muaj resin filler, ua haujlwm zoo hauv cov ntawv thov corrosive heev. Silicon carbide yog cov khoom siv tawv ntsej muag feem ntau. Nws muaj kev tiv thaiv tshuaj lom neeg siab. Cov qib tshwj xeeb muaj:
- Cov silicon carbide uas sib txuas ua ke muaj cov hlau silicon dawb. Qhov no txwv tsis pub muaj kev tiv thaiv tshuaj lom neeg. Tsis txhob siv nws hauv cov kua qaub muaj zog (pH < 4) thiab cov hauv paus muaj zog (pH > 11).
- Cov silicon carbide uas raug sintered ncaj qha (self-sintered) muaj kev tiv taus tshuaj lom neeg zoo dua. Nws tsis muaj cov hlau silicon dawb. Cov khoom no tiv taus feem ntau cov tshuaj lom neeg. Nws haum rau yuav luag txhua daim ntawv thov foob pob.
Tungsten carbide yog lwm yam khoom siv tawv uas siv ntau. Tam sim no muaj ntau dua tungsten carbide uas siv nickel. Nws tiv taus tshuaj lom neeg ntau dua.
Cov Khoom Siv Sealing Thib Ob
Cov khoom sib khi thib ob, xws li O-rings thiab gaskets, muab kev sib khi zoo li qub. Lawv cov tshuaj sib xws yog qhov tseem ceeb. Cov chaw tsim khoom muab cov ntaub ntawv sib xws tshuaj rau O-rings ua cov lus qhia dav dav. Cov lus qhia no feem ntau siv rau ntawm70°FCov neeg siv khoom yuav tsum sim thiab xyuas kom meej cov khoom siv foob rau txhua daim ntawv thov tshwj xeeb. Tsis muaj ob qhov xwm txheej lossis kev teeb tsa zoo ib yam. Kev txheeb xyuas tus kheej yog qhov pom zoo ua ntej siv ntau lawm.
| Hom Khoom Siv | Cov Khoom Siv Tshwj Xeeb | Cov yam ntxwv sib xws ntawm tshuaj lom neeg |
|---|---|---|
| Elastomeric | Nitrile/Buna-N (NBR) | Pheej yig, siv dav dav rau dej, roj/roj qis dua qhov kub |
| Elastomeric | Fluoroelastomer (FKM) | Kev sib raug zoo ntawm cov tshuaj lom neeg, kev ua haujlwm kub dua |
| Elastomeric | EPDM | Kev sib raug zoo hauv dej thiab pa; tsis sib xws nrog cov hydrocarbons |
| Cov yas thermoset | PTFE | Chemically inert |
| Cov Hlau Sib Xyaws | Hlau tsis xeb (316, 316L) | Tiv taus xeb |
Kev Sib Xws ntawm Cov Cheebtsam Hlau
Cov khoom siv hlau hauv lub foob pob hluav taws xob, xws li cov caij nplooj ntoos hlav thiab cov qog, kuj xav tau kev xaiv cov khoom siv zoo. Lawv yuav tsum tiv taus xeb los ntawm cov kua dej thiab ib puag ncig. Cov hlau tsis xeb, Hastelloy, thiab lwm yam khoom sib xyaw ua ke muaj ntau qib ntawm kev tiv taus xeb. Cov kws ua haujlwm sib phim cov ntaub ntawv no rau qhov chaw ib puag ncig tshuaj lom neeg. Qhov no tiv thaiv kev tawg, tawg, thiab lwm yam kev puas tsuaj.
Kev Teeb tsa thiab Hom ntawm Cov Khoom Siv Mechanical Seals
Qhov kev teeb tsa thiab hom ntawm lub foob pob hluav taws xob muaj feem cuam tshuam rau nws qhov kev siv rau cov ntawv thov tshwj xeeb. Cov kws ua haujlwm yuav tsum xav txog cov kev xaiv tsim no kom ntseeg tau tias muaj kev ua haujlwm zoo tshaj plaws thiab kev nyab xeeb.
Kev Npaj Ib Leeg Piv Rau Ob Lub Rooj Sib Tham
Cov kev teeb tsa foob sib txawv raws li qhov xav tau ntawm kev siv. Cov foob ib leeg yog ib qho uas siv tau rau cov kua dej uas tsis muaj kev phom sij. Txawm li cas los xij,kev npaj ob lub foob, tshwj xeeb yog ob chav sib khi ua ke, muab kev tiv thaiv zoo dua. Lawv yognyiam rau kev nyab xeeb ntawm cov txheej txheemthaum cuam tshuam nrog cov kua tshuaj lom lossis cov kua phom sij. Txhua qhov xau ntawm cov kua no ua rau muaj kev pheej hmoo loj vim yog cov cai ib puag ncig nruj. Ob lub foob muabkev tiv thaiv zoo dua tiv thaiv kev xauQhov kev npaj sib xyaw ua ke, nrog ob lub foob pob ntsia rau tib qho kev taw qhia, yog qhov pom zoo tshwj xeeb rau cov kev siv tshuaj lom lossis kev phom sij. Lub foob sab nraud ua haujlwm ua lub zog thaub qab tag nrho, muab kev nyab xeeb yog tias lub foob sab hauv tsis ua haujlwm.Ob lub thawv cartridge mechanical seals yog qhov nyiamrau cov ntawv thov uas qhov kev ntseeg siab thiab kev nyab xeeb yog qhov tseem ceeb. Lawv cov qauv tsim tandem muab ib qho kev thaiv thib ob, txhim kho kev tiv thaiv kev xau thiab kev ua qias tuaj ib puag ncig. Qhov no yog qhov tseem ceeb rau kev tswj hwm cov khoom kom huv si thiab kev nyab xeeb hauv cov ntawv thov tseem ceeb.
Cov Seal Sib Npaug thiab Tsis Sib Npaug
Qhov sib npaug ntawm lub foob yog hais txog qhov kev ua haujlwm ntawm lub zog ntawm lub foob. Cov foob tsis sib npaug yooj yim dua thiab pheej yig dua. Lawv ua haujlwm zoo hauv cov ntawv thov uas muaj kev kub siab tsawg. Cov foob sib npaug raug pom zoo rau cov kab ke uas muaj cov twj tso kua siab ua haujlwm ntawm10 barg los yog ntau dua. Lawv muaj kev kam rau siab dua thiab muaj kev sib npaug ruaj khov dua. Kev siv cov foob sib npaug hauv cov ntawv thov siab tiv thaiv kev pheej hmoo xws li kev xau, kev phom sij cuam tshuam, thiab lub sijhawm tsis ua haujlwm ntawm lub kaw lus. Lawv muab kev ntseeg siab dua thiab kev txuag nyiaj mus sij hawm ntev. Cov foob sib npaugfaib qhov siab kom sib npaug zos, txo qhov kev sib txhuam thiab kev tsim cua sovQhov no tiv thaiv kev puas tsuaj rau cov ntsej muag foob thiab cov khoom siv. Qhov kub qis dua thiab kev sib txhuam tsawg dua ua rau kev hnav thiab tsim kua muag tsawg dua, ua rau lub foob siv tau ntev dua. Lawv kuj tiv taus kev tawg los ntawm cua sov.
Cartridge Versus Component Seals
Qhov kev xaiv ntawm cov foob pob cartridge thiab cov foob pob khoom cuam tshuam rau kev teeb tsa thiab kev saib xyuas. Cov foob pob khoom xav tau kev sib dhos ua ke. Qhov no xav tau cov kws tshaj lij rau kev teeb tsa thiab kev ntsuas kom raug kom tiv thaiv kev ua tsis tiav ntawm cov foob pob. Qhov no ua rau lub sijhawm ua haujlwm thiab tus nqi teeb tsa ntev dua.Cov ntsaws ruaj ruajkev muabyooj yim thiab yooj yim installation. Lawv feem ntau tsis xav tau cov kws tshwj xeeb. Qhov no ua rau txo cov nqi teeb tsa thiab lub sijhawm tsis ua haujlwm. Cov foob pob cartridge yogyooj yim dua los hloovvim tias txhua yam khoom muaj nws tus kheej. Qhov no tso cai rau kev sib pauv yooj yim yam tsis tau rhuav lub twj tso kua mis, txuag lub sijhawm thiab nyiaj txiag tseem ceeb. Cov foob pob hluav taws xob yogyooj yim dua rau kev haum vim lawv tau sib sau ua ntejLawv tso cai rau kev ntxig ncaj qha yam tsis muaj kev hloov kho nyuaj, yog li txo qhov kev pheej hmoo ntawm kev ua yuam kev.
Cov Yam Ntxim Saib thiab Kev Lag Luam rau Cov Khoom Siv Mechanical
Cov kws ua haujlwm xav txog cov yam ntxwv ua tau zoo thiab kev lag luam thaum xaiv cov Mechanical Seals. Cov ntsiab lus no cuam tshuam rau kev ua haujlwm mus sij hawm ntev thiab kev siv nyiaj tsawg.
Kev Txij Nkawm thiab Kev Pabcuam
Cov kev cai saib xyuas muaj feem cuam tshuam rau kev xaiv cov foob. Cov hom foob sib txawv muaj kev pabcuam sib txawv. Piv txwv li,Feem ntau cov foob pob cartridge muab lub neej ua haujlwm ntev duaLawv qhov xwm txheej ua ntej sib sau ua ke txo qhov yuam kev ntawm kev teeb tsa. Qhov no txo qhov xav taukev saib xyuas tas li. Ntawm qhov tod tes, cov foob sib xyaw xav tau kev sib dhos ua ke. Qhov no ua rau lub sijhawm teeb tsa ntev dua thiab muaj peev xwm ua yuam kev. Lub neej ntev uas xav tau kuj txawv ntawm hom foob:
| Hom Kev Sib Tsoo Mechanical | Lub Neej Xav Tau Ntev |
|---|---|
| Ib Lub Caij Nplooj Ntoos Hlav | 1 – 2 xyoos |
| Lub thawv | 2 - 4 xyoos |
| Cov Bellows | 3 - 5 xyoos |
Cov foob sib npaug ua tiav lub neej ntev hauv cov tshuab siab. Lawv faib cov zog hydraulic sib npaug. Cov foob hlau bellows muaj zog hauv cov ntawv thov kub siab. Lawv tswj tau qhov nthuav dav thermal zoo. Cov foob sib tov ntsib cov teeb meem tshwj xeeb los ntawm cov khoom sib xyaw. Lawv lub neej nyob ntawm qhov sib tov muaj zog thiab cov khoom sib xyaw.
Kev Siv Nyiaj Zoo thiab Cov Nqi Siv Tau Ntev
Tus nqi pib ntawm lub tshuab foob tsuas yog ib feem ntawm nws cov nqi tag nrho. Tus nqi siv tas mus li (LCC) muab kev pom dav dua. LCC suav nrog kev yuav khoom, kev teeb tsa, kev ua haujlwm, kev saib xyuas, ib puag ncig, kev tshem tawm, thiab cov nqi pov tseg. Lub foob nrog tus nqi tau txais thawj zaug siab dua tuaj yeem muaj LCC qis dua tag nrho. Qhov no tshwm sim vim yog txo cov nqi khiav lag luam thiab kev saib xyuas. Cov yam xws li kev siv hluav taws xob thiab lub sijhawm nruab nrab ntawm kev kho (MTBR) ua lub luag haujlwm. Piv txwv li, lub foob ib leeg uas tau tsim yuav raug nqi ntau dua thaum pib. Txawm li cas los xij, nws tuaj yeem muab kev txuag nyiaj ntau dua 15 xyoo piv rau lwm lub tshuab foob. Qhov no yog vim muaj cov nqi khiav lag luam thiab kev saib xyuas qis dua.
Cov Qauv thiab Cov Cai ntawm Kev Lag Luam
Kev ua raws li cov qauv kev lag luam ua kom muaj kev nyab xeeb thiab kev ntseeg siab. API Standard 682, "Twj Tso Kua Roj - Cov Tshuab Kaw Ncej rau Cov Twj Tso Kua Roj Centrifugal thiab Rotary, ”yog tus qauv kev lag luam ua ntej. Nws piav qhia txog cov kev cai rau Mechanical Seals thiab cov txheej txheem sealing. Tus qauv no yogfeem ntau siv rau hauv roj av, roj av, thiab kev lag luam tshuaj lom neegAPI 682 muab ib lub moj khaum sib xws rau kev tsim cov foob, kev sim, thiab kev xaiv.Nws lub hom phiaj tseem ceeb suav nrog:
- Xyuas kom muaj kev ntseeg siab thiab kev nyab xeeb hauv qhov chaw txaus ntshai thiab muaj kev kub ntxhov.
- Kev teeb tsa cov hom foob, kev npaj, thiab kev sim thoob plaws hauv kev lag luam.
- Pab txhawb kev sib pauv ntawm cov khoom siv kho tshuab ntawm cov chaw tsim khoom.
Kev ua raws li API 682 pab cov lag luam txo qhov kev pheej hmoo ntawm kev ua tsis tiav ntawm lub foob, kev xau, thiab lub sijhawm tsis ua haujlwm. Qhov no ua kom ntseeg tau tias kev ua haujlwm zoo.
Kev xaiv cov Mechanical Seals yog qhov tseem ceeb rau kev ua haujlwm kom zoo. Kev txiav txim siab paub zoo yuav ua rau muaj txiaj ntsig zoo rau lub sijhawm ntev, suav nrog kev ntseeg siab dua, kev nyab xeeb zoo dua, thiab txo cov nqi ua haujlwm. Kev koom tes nrog cov tuam txhab tsim Mechanical Seals ua kom muaj kev daws teeb meem zoo tshaj plaws. Kev koom tes no muab cov seals uas ua raws li cov kev xav tau tshwj xeeb, lav qhov ua tau zoo tshaj plaws thiab kev nyab xeeb.
Cov Lus Nug Feem Ntau
Thaum xaiv lub tshuab foob pob hluav taws xob, qhov tseem ceeb tshaj plaws yog dab tsi?
Cov yam ntxwv ntawm cov kua dej ua haujlwm yog qhov tseem ceeb heev. Cov kws ua haujlwm yuav tsum xav txog nws qhov corrosion, abrasiveness, thiab viscosity. Cov yam ntxwv no ncaj qha qhia txog cov ntaub ntawv foob tsim nyog rau kev ua haujlwm zoo tshaj plaws thiab lub neej ntev.
Vim li cas cov engineers nyiam ob lub foob rau cov kua dej txaus ntshai?
Ob lub foobmuab kev nyab xeeb thiab kev tiv thaiv ib puag ncig zoo dua. Lawv muab ib qho kev thaiv thib ob tiv thaiv kev xau, uas yog qhov tseem ceeb rau kev siv tshuaj lom lossis kev phom sij. Tus qauv tsim no txo qis kev pheej hmoo thiab ua kom ntseeg tau tias ua raws li cov cai nruj.
Qhov txawv tseem ceeb ntawm cov khoom siv sib npaug thiab tsis sib npaug yog dab tsi?
Cov ntsaws ruaj ruaj sib npaugfaib qhov siab kom sib npaug ntau dua thoob plaws ntawm lub ntsej muag ntawm lub foob. Qhov kev tsim no txo qhov kev sib txhuam thiab cua sov, ua rau lub foob ntev dua hauv kev siv siab. Cov foob tsis sib npaug yooj yim dua thiab tsim nyog rau cov kab ke siab qis.
Qhov kub thiab txias hloov pauv li cas cuam tshuam rau kev ua haujlwm ntawm lub foob pob hluav taws xob?
Qhov kub thiab txias hloov pauv ua rau cov khoom siv nthuav dav thiab sib zog. Qhov kev hloov pauv kub no tsim kev ntxhov siab, ua rau tawg, deformation, lossis poob ntawm lub peev xwm sealing. Cov kws ua haujlwm yuav tsum xaiv cov foob uas muaj kev kam rau qhov kub thiab txias dav rau cov xwm txheej zoo li no.
Lub sijhawm tshaj tawm: Lub Kaum Ob Hlis-25-2025