Qhov txawv ntawm gasket thiab mechanical seal yog dab tsi?

Ib lub gasket yog tsim los rau kev sib khi zoo li qub ntawm cov khoom tsis txav mus los, thaum ib qhoKev Sib Txuas Lusyog tsim los rau kev sib khi ua haujlwm dynamic. Lub lag luam gaskets thiab seals thoob ntiaj teb loj hlob mus txog USD 66.1 billion hauv xyoo 2024. Cov lag luam siv dav davtwj tso kua mis txhua yam foobkom tiv thaiv kev xau hauv cov khoom siv uas tig. Kev nkag siabyuav ua li cas cov twj tso kua mis ua haujlwmyog qhov tseem ceeb heev. ALub Twj Tso Kua Dej Mechanical Sealua kom muaj kev ua tau zoo, thiab paubyuav ua li cas xaiv cov twj tso kua mis cov khoom siv rau cov twj tso kua mis kev lag luamyog qhov tseem ceeb heev. Peb lub hom "victor" muaj ntau yam kev pabcuamCov Khoom Siv Kho Tshuab, suav nrog cov foob pob cartridge, cov foob roj hmab bellow, cov foob hlau bellow, thiab cov foob O-ring, siv tau rau ntau yam kev ua haujlwm. Peb kuj muab OEMtwj tso kua mis kho tshuab foobcov kev daws teeb meem rau cov kev xav tau tshwj xeeb.

Cov Ntsiab Lus Tseem Ceeb

• Cov gaskets tiv thaiv cov dej ntws ntawm cov khoom uas tsis txav. Lawv zoo rau kev kaw cov kav dej lossis cov khoom cav uas nyob twj ywm.
• Cov ntsaws ruaj ruajtiv thaiv cov dej xau hauv cov tshuab uas muaj cov khoom tig, xws li cov twj tso kua mis. Lawv ua haujlwm zoo thaum cov khoom txav mus tas li.
• Xaiv lub gasket rau cov khoom uas tseem nyob thiab lub mechanical seal rau cov khoom uas txav tau. Qhov no yuav pab koj cov tshuab ua haujlwm tau zoo thiab siv tau ntev dua.

Nkag Siab Txog Cov Gaskets

Gasket Txhais thiab Kev Ua Haujlwm Tseem Ceeb

Lub gasket yog lub foob pob uas puv qhov chaw ntawm ob lossis ntau qhov chaw sib koom ua ke, feem ntau yog kom tiv thaiv kev xau los ntawm lossis nkag mus rau hauv cov khoom sib koom ua ke thaum nyob hauv qab kev sib txuas. Gaskets ua ntau yam haujlwm tseem ceeb hauvkev siv rau kev lag luam. Lawv feem ntau tiv thaiv kev xau, tswj kev siab hauv cov kab ke thiab tiv thaiv lawv ntawm cov pa phem sab nraud. Tshaj li kev kaw, cov gaskets kuj muab kev rwb thaiv tsev, txo qhov hloov pauv cua sov, kev ua hluav taws xob, thiab kev sib kis suab nrov. Lawv ua kom cov kev co zoo, nqus thiab txo qhov cuam tshuam los ntawm cov khoom txav mus los lossis cov zog sab nraud, uas txhim kho kev ua haujlwm ntawm cov khoom siv los ntawm kev txo qhov sib txhuam thiab tiv thaiv kev hnav.

Cov Kev Siv Gaskets Feem Ntau

Cov lag luam siv cov gaskets dav dav thoob plaws ntau yam kev siv. Piv txwv li, lawv tseem ceeb heev rau kev siv rau kev lag luam hauv hiav txwv uas raug tshav ntuj, kev muab hluav taws xob, thiab kev siv tshuaj lom neeg rau kev kaw flange. Cov gaskets kuj tseem ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev co, siv rau hauv cov tshuab uas tsim zaus thiab kev co kom tsis txhob muaj suab nrov thiab txwv tsis pub siv zog ntau dhau. Hauv kev kaw ib puag ncig, cov gaskets tiv thaiv cov khoom siv tseem ceeb hauv kev lag luam los ntawm kev kaw tiv thaiv cov av qias neeg, hmoov av, lossis cov khoom me me. Cov ntawv thov tsheb siv cov gaskets ntawm qhov rooj thiab lub hau ntawm lub cev kom kaw cov dej noo thiab ntawm cov blocks cav thiab lub taub hau lub tog raj kheej kom tiv thaiv dej nkag. Ntxiv mus, cov gaskets yog qhov tseem ceeb hauv cov chaw ua zaub mov kom ntseeg tau tias muaj kev huv thiab kev nyab xeeb, tiv thaiv kev sib kis thiab tiv thaiv kev xau hauv cov dej haus.

Hom Khoom Siv Gasket

Kev xaiv cov khoom siv gasket nyob ntawm seb daim ntawv thov xav tau dab tsi, tshwj xeeb tshaj yog qhov kub thiab txias. Rau cov ntawv thov kub siab, cov ntaub ntawv xws li silicone muaj kev tiv taus cua sov zoo heev, kav ntev txog 500 ° F thiab txawm tias 600 ° F rau lub sijhawm luv luv. Graphite thiab ntau yam hlau alloys kuj muaj peev xwm tiv taus cov xwm txheej hnyav, muab cov foob txhim khu kev qha rau qhov kub thiab txias siab, siab siab, thiab cov kev pabcuam txaus ntshai. Lwm cov ntaub ntawv siv feem ntau suav nrog vermiculite, uas ua haujlwm tau zoo tshaj 750 ° F, thiab PTFE, nrog rau qhov txwv ntawm 600 ° F. Composite graphite thiab ntau txheej hlau (MLS) gaskets feem ntau siv rau hauv cov cav diesel hnyav thiab cov tshuab tso pa tawm vim lawv cov khoom muaj zog.

To taub txog Mechanical Seals

Mechanical Seal Txhais thiab Primary Function

Lub foob pob hluav taws xob yog ib lub cuab yeej uas tiv thaiv cov kua dej ntws ntawm lub qhov tig thiab lub tsev nyob ruaj khov hauv cov khoom siv xws li cov twj tso kua mis, cov tshuab compressors, thiab cov khoom sib tov. Nws tsim ib lub foob kaw ntom ntom ntawm lub qhov tig thiab lub tsev twj tso kua mis ruaj khov. Lub luag haujlwm tseem ceeb ntawmCov Khoom Siv Kho Tshuabyog los tswj cov kua dej txav los ntawm kev tsim kom muaj lub foob nruj ntawm cov ntsej muag tig thiab cov ntsej muag ruaj khov. Qhov no tso cai rau lub qhov tig thaum tiv thaiv cov kua dej tawm. Lawv txo qhov kev sib txhuam thiab tiv thaiv kev xau los ntawm cov zaj duab xis roj nyias nyias, ua kom muaj kev xau tsawg kawg nkaus, ua kom cov khoom siv siv tau ntev dua, thiab ua haujlwm tau zoo dua.

Cov Ntawv Thov Siv Rau Cov Khoom Siv Mechanical Seals

Cov lag luam siv cov khoom siv sib txuas lus dav dav thoob plaws ntau yam kev siv.

• Roj thiab Roj AvLawv tswj cov kua dej siab, cov kua txaus ntshai, nrog cov foob tshwj xeeb uas tswj cov kua dej siab thiab tiv thaiv kev raug mob.
• Kev Ua Tshuaj Lom ZemCov ntsaws ruaj ruaj yog qhov tseem ceeb rau kev tswj cov tshuaj lom, cov khoom siv abrasive, lossis cov tshuaj lom. Lawv tiv taus kev tawm tsam tshuaj lom neeg thiab tiv thaiv kev xau, feem ntau siv cov ntsaws ruaj ruaj ob npaug lossis tsis thawb.
• Khoom Noj & Dej HausCov foob no ua kom huv si thiab ua raws li txoj cai, kom ntseeg tau tias tsis muaj kev ua qias tuaj rau cov khoom noj. Cov foob roj qhuav thiab cov foob pob hluav taws xob yog qhov nyiam dua vim lawv huv thiab yooj yim rau kev saib xyuas.
• Cov TshuajLawv ua tau raws li qhov yuav tsum tau ua kom huv hauv cov chaw tsim tshuaj, qhov twg txawm tias cov dej xau me me tuaj yeem ua rau cov khoom puas. Kev khiav qhuav thiab ob lub foob ua kom huv thiab muaj kev nyab xeeb.
• Kev Kho Dej thiab Dej Khib NyhiabSiv rau hauv cov tshuab nqus dej loj, cov foob no xav tau kev ruaj khov. Cov foob sib npaug txo qhov hnav thiab ua kom cov khoom siv siv tau ntev.
• Kev Tsim Hluav Taws Xob: Cov tshuab xws li cov cav turbines thiab cov tshuab cua txias siv cov foob no.

Hom Kev Sib Txuas Lus

Cov foob pob hluav taws xob muaj ntau yam kev teeb tsa, txhua tus tsim los rau cov kev xav tau ua haujlwm tshwj xeeb.

1. Ib Lub Tshuab SealCov no feem ntau yog cov uas muaj ib lub qhov ruaj khov thiab ib lub qhov sib khi uas tig tau. Lawv haum rau cov kua huv thiab cov siab nruab nrab, muab cov xau nruab nrab thiab tus nqi qis dua.
2. Ob Chav Mechanical SealsCov foob no muaj ob txheej ntawm lub ntsej muag sib khi nrog cov kua dej thaiv. Lawv txhim kho kev nyab xeeb thiab txo qhov xau, tshwj xeeb tshaj yog rau cov kua lom lossis cov kua dej uas yooj yim hlawv thiab cov kev pabcuam kub siab. Lawv muab cov xau tsawg heev tab sis tuaj yeem kim dua.
3. Cov Seal Sib Npaug vs. Tsis Sib NpaugCov foob sib npaug txo cov zog kaw ntawm cov ntsej muag foob, ua rau kev ua haujlwm zoo ntawm qhov siab dua thiab ua rau lub neej ntawm foob ntev dua. Cov foob tsis sib npaug yooj yim dua thiab pheej yig dua rau qhov siab qis dua.
4. Cov Khoom Siv Cartridge Mechanical SealsCov no yog cov chav ua haujlwm uas tau sib dhos ua ntej lawm uas muaj tag nrho cov khoom sib khi ua ke hauv ib lub tsev. Lawv txo qhov yuam kev ntawm kev teeb tsa, ua kom lub sijhawm tsis ua haujlwm luv dua, thiab txhim kho kev ntseeg tau.
5. Cov Hlau Bellows Seals: Cov no muaj kev tiv taus kub thiab tshuaj lom neeg zoo dua, zoo tagnrho rau cov xwm txheej hnyav.
6. Cov Roj Seals thiab Cov Roj Seals Qhuav: Cov roj foob siv tau rau cov pa roj. Cov roj foob qhuav tsis sib cuag nrog cov qauv hydrodynamic uas tsim cov roj cushion, txo qhov hnav thiab tiv thaiv kev ua qias tuaj.

Kev Sib Nqus Zoo Li Qub vs. Dynamic Sealing: Qhov Sib Txawv Tseem Ceeb

Cov kev daws teeb meem sealing yog feem ntau faib ua pawg los ntawm qhov muaj lossis tsis muaj kev txav mus los ntawm cov nplaim kaw. Qhov kev sib txawv no txhais tau tias daim ntawv thov xav tau lub foob ruaj khov lossis lub foob dynamic. Cov foob ruaj khov ua haujlwm ntawm ob qhov chaw ruaj khov uas tsis muaj kev txav mus los. Qhov sib piv, cov foob dynamic ua haujlwm qhov twg cov nplaim nyob rau hauv kev txav mus los tas li. Qhov sib txawv tseem ceeb no qhia txog kev tsim qauv, kev xaiv cov khoom siv, thiab cov ntsiab cai ua haujlwm ntawm txhua qhov khoom sib khi.

Cov Gaskets rau Kev Sib Txuas Nruag

Cov gaskets yog qhov kev xaiv tseem ceeb rau kev sib txuas ruaj khov. Lawv tsim ib lub foob ntawm ob qho chaw uas tsis txav mus los. Cov kws ua haujlwm siv cov gaskets hauv cov ntawv thov xws li flange seals thiab housing seals. Lub tshuab foob yog nyob ntawm kev nias cov khoom siv gasket. Qhov kev nias no ua rau txhua qhov sib txawv thiab qhov tsis sib xws ntawm cov nplaim sib phim. Qhov elasticity ntawm cov khoom siv pab tswj lub foob thaum muaj kev nyuaj siab.

Cov gaskets ntsib teeb meem ntsig txog kev sib xws ntawm cov khoom siv, qhov kub, siab, thiab qhov tiav ntawm cov khoom siv zoo li qub. Kev xaiv cov khoom siv yog qhov tseem ceeb rau kev tiv taus tshuaj lom neeg thiab kev kam rau siab kub. Piv txwv li, cov ntaub ntawv gasket sib txawv muaj kev tiv taus kub sib txawv:

Feem ntau qhov xau hauv cov ntawv thov uas tsis hloov pauv zoo li qub tshwm sim vim yog kev nias tsis raug, cov khoom puas tsuaj raws sijhawm, lossis qhov tsis zoo ntawm qhov chaw. Cov gaskets feem ntau yuav tsum tau hloov tsawg zaus tshwj tsis yog tias cov khoom puas tsuaj lossis cov kws kho tshuab rhuav tshem qhov sib koom ua ke.

Cov Khoom Siv Kho Tshuab Rau Cov Khoom Siv Tig

Cov Seal Mechanical Seals yog tsim tshwj xeeb rau cov khoom siv tig. Lawv tswj cov kua dej xau ntawm lub qhov tig thiab lub tsev nyob ruaj khov. Qhov no suav nrog cov twj tso kua mis, cov compressors, thiab cov mixers. Cov seals no yuav tsum tswj hwm kev ncaj ncees thaum ua kom muaj kev txav mus los tas mus li. Lawv txoj kev tsim feem ntau cuam tshuam nrog daim di ncauj lossis lub ntsej muag sealing uas nyob sib cuag nrog qhov chaw txav mus los.

Cov foob pob hluav taws xob ntsib teeb meem tshwj xeeb. Cov no suav nrog kev sib txhuam, kev hnav, kev tsim cua sov, thiab qhov xav tau kev nplua roj kom zoo. Kev tswj hwm kev sib khi kom zoo thaum lub sijhawm txav mus los yog qhov tseem ceeb heev. Cov kws ua haujlwm tsom mus rau qhov nyuaj ntawm cov khoom siv, kev ywj pheej, cov yam ntxwv ntawm kev sib txhuam, kev ntsuas siab, kev txwv ceev, thiab kev xav tau kev nplua roj thaum tsim qauv.

Cov ntsaws ruaj ruaj tuaj yeem tswj tau ntau yam kev sib hloov ceev.

• Feem ntau cov foob mos ua haujlwm ntawm qhov ceev qis dua, txwv rau 250-300 rpm. Qhov ceev siab dua ua rau hnav sai.
• Cov foob sib npaug zoo rau kev siv ceev ceev. Lawv tuaj yeem tswj tau qhov ceev txog li 60,000 rpm. Qhov no yog ib txwm muaj nyob rau hauv cov tshuab hloov pauv dej txias los ntawm lub spindle hauv cov cuab yeej tshuab.
• Cov foob sib tov feem ntau ua haujlwm ntawm qhov ceev qis, xws li 5 txog 300 rpm.

Qhov xau hauv cov ntawv thov dynamic tuaj yeem tshwm sim vim yog hnav los ntawm kev txav mus los tas li, tsis txaus lubrication, kev ua haujlwm ceev ceev, kev hloov pauv siab, lossis kev puas tsuaj rau lub foob los ntawm kev ntxhov siab dynamic. Cov foob no feem ntau xav tau kev tshuaj xyuas thiab hloov pauv ntau zaus dua li cov foob static vim yog qhov hnav tas li uas lawv ntsib.

Cov Txheej Txheem Tiv Thaiv Kev Xaus Dej

Yuav ua li cas Gaskets Tiv Thaiv Kev Xaus

Cov gaskets tiv thaiv kev xau los ntawm kev tsim ib qho thaiv nruj ntawm ob qhov chaw tsis txav. Thaum cov kws kho tshuab nias lub gasket, nws cov khoom siv puv cov qhov tsis sib xws me me ntawm cov chaw sib koom ua ke. Qhov kev nias no tsim ib lub foob uas tiv thaiv cov kua lossis roj kom tsis txhob tawm. Lub gasket lub elasticity pab nws tswj lub foob no txawm tias nyob hauv qab ntau yam kev nyuaj siab. Txawm li cas los xij, gaskets tuaj yeem ua tsis tiav, ua rau xau. Piv txwv li, kev o ntawm cov tshuaj tshwm sim thaum cov khoom siv gasket cuam tshuam nrog cov kua, ua rau nws nthuav dav thiab poob nws cov khoom siv lub cev. Kev teeb tsa compression tshwm sim thaum lub gasket deforms tas mus li, tsis rov qab los sau qhov chaw. Extrusion thiab nibbling piav qhia txog cov khoom siv gasket raug yuam tawm ntawm nws qhov groove, feem ntau vim muaj kev nyuaj siab ntau dhau lossis lub qog overfilled. Kev puas tsuaj rau kev teeb tsa, xws li pock marking lossis notches loj, kuj ua rau lub foob tsis ruaj khov. Kev puas tsuaj thermal, uas yog cov kab nrib pleb radial lossis hardening, yog los ntawm kev ua haujlwm kub tshaj qhov txwv ntawm cov khoom siv.

Yuav Ua Li Cas Cov Seal Mechanical Tiv Thaiv Kev Xaus

Cov Khoom Siv Kho Tshuabtiv thaiv kom tsis txhob muaj qhov xau hauv cov ntawv thov dynamic los ntawm kev tswj kom muaj qhov sib txawv ntawm lub nplhaib tseem ceeb thiab lub rooj zaum ruaj khov. Ib daim nyias nyias ntawm cov kua dej ua rau cov ntsej muag no ntub, tiv thaiv kev sib cuag ncaj qha thiab txo qhov sib txhuam thaum tseem thaiv qhov xau. Tus qauv tsim no tso cai rau lub qag tig tau yooj yim yam tsis muaj kua dej tawm ntawm lub cev. Txawm li cas los xij, ntau yam tuaj yeem ua rau qhov sib npaug zoo no puas tsuaj, ua rau muaj qhov xau. Kev teeb tsa tsis raug, xws li kev nruj ntawm lub caij nplooj ntoos hlav tsis raug lossis cov ntsej muag tsis sib xws, tuaj yeem ua rau muaj qhov xau tam sim ntawd lossis hnav ua ntej lub sijhawm. Kev tsis sib xws thiab kev txav ntawm lub qag, feem ntau los ntawm kev co lossis kev nthuav dav thermal, muab kev nyuaj rau ntawm cov ntsej muag foob, ua rau hnav tsis sib xws. Kev hnav thiab kev sib txhuam ntau dhau, ua rau los ntawm kev tig ceev ceev lossis cov khoom siv abrasive, kuj ua rau lub foob tsis zoo. Kev ua qias tuaj ntawm cov khoom sab nraud xws li av lossis hmoov av tuaj yeem sib sau ua ke ntawm cov ntsej muag foob, ua rau muaj qhov txhab lossis hnav tsis sib xws. Kev hloov pauv kub thiab siab tuaj yeem ua rau muaj kev nthuav dav thermal, cuam tshuam rau lub foob qhov haum thiab kev ua haujlwm, ua rau tawg lossis tsis ua haujlwm kom lub foob nruj.

Kev Xav Txog Kev Teeb tsa thiab Kev Txij Nkawm

Kev Txhim Kho thiab Kev Hloov Gasket

Kev teeb tsa kom zoo yog qhov tseem ceeb rau cov gaskets kom ua tiav qhov kev ua haujlwm zoo tshaj plaws. Cov kws tshaj lij yuav tsum npaj cov nplaim kom zoo. Lawv ntxuav thiab tshuaj xyuas cov nplaim flange, cov fasteners, txiv ntoo, thiab cov washers. Txhua yam khoom txawv teb chaws thiab cov khib nyiab yuav tsum tau tshem tawm. Cov neeg ua haujlwm xyuas kom meej tias lub gasket yog qhov loj me thiab cov khoom siv raug. Lawv khaws cia kom zoo kom tsis txhob puas tsuaj. Thaum teeb tsa lub gasket, lawv ua tib zoo ntxig nws ntawm cov flanges qhuav. Lawv xyuas kom meej tias nws nyob hauv nruab nrab thiab tsis raug nias lossis puas tsuaj. Cov chaw tsim khoom qhia kom tsis txhob siv cov khoom sib koom ua ke lossis cov neeg sawv cev tso tawm tshwj tsis yog tias tau teev tseg. Kev siv cov roj nplua nyeem sib npaug rau cov xov bolt thiab txiv ntoo txo ​​qhov kev sib txhuam thaum lub sijhawm nruj. Cov neeg ua haujlwm zam kev ua rau lub gasket lossis flange nto paug nrog cov roj nplua nyeem. Lawv nruj tag nrho cov txiv ntoo ua ntej los ntawm tes. Siv lub wrench torque calibrated thiab tus qauv bolt crisscross, lawv ua peb zaug dhau kom ncav cuag qhov torque xav tau. Rau kev nyab xeeb, tsis txhob siv lub gasket dua. Cov laj thawj feem ntau ntawm kev xau suav nrog qhov hnyav bolt tsawg, kev sib zog ntau dhau, thiab kev teeb tsa yuam kev.

Kev Teeb tsa thiab Kev Txij Nkawm ntawm Cov Khoom Siv Mechanical Seals

Yog lawmkev teeb tsayog qhov tseem ceeb rau cov foob pob hluav taws xob kom ua haujlwm tau zoo thiab kav ntev. Cov lus qhia ntawm cov chaw tsim khoom yuav tsum tau ua raws li qhov tseeb, siv cov cuab yeej thiab cov lus qhia torque kom raug. Kev tswj kom huv si hauv cov chaw foob thaum lub sijhawm teeb tsa thiab ua haujlwm kuj tseem ceeb. Kev lim cov kua dej hauv cov txheej txheem pab tiv thaiv kev ua qias tuaj. Cov txheej txheem txij nkawm tsis tu ncua ua rau lub neej ua haujlwm ntawm cov foob pob hluav taws xob ntev tshaj plaws. Cov kws tshaj lij ua qhov kev tshuaj xyuas pom rau qhov xau, hnav, lossis qhab nia ntawm cov ntsej muag foob thiab cov tes tsho ncej. Lawv tshuaj xyuas qhov chaw foob rau kev huv si thiab kev ua haujlwm zoo ntawm cov tshuab txias lossis yaug. Lawv lees paub qhov sib dhos ntawm lub twj tso kua mis thiab lub cev muaj zog thiab tshuaj xyuas kev co lossis kev tsis sib npaug. Kev saib xyuas cov xwm txheej ua haujlwm, xws li siab, kub, thiab tus nqi ntws, ua kom muaj kev ua haujlwm hauv cov qauv tsim. Kev siv thiab tswj cov txheej txheem txhawb nqa foob zoo, xws li cov phiaj xwm yaug lossis cov txheej txheem thaiv, kuj ua rau lub neej foob ntev dua. Kev cob qhia cov neeg ua haujlwm txij nkawm txog kev tuav thiab saib xyuas foob pab tiv thaiv teeb meem.

Cov Nqi Cuam Tshuam thiab Lub Neej Siv Tau

Tus nqi ntawm Gasket thiab Lub Neej Xav Tau

Feem ntau cov gaskets muab cov kev daws teeb meem sealing uas pheej yig. Lawv tus nqi yuav thawj zaug feem ntau qis dua piv rau cov khoom siv sealing nyuaj dua. Lub neej ntev ntawm cov gaskets sib txawv ntau nyob ntawm cov khoom siv thiab cov xwm txheej ua haujlwm. Qee cov gaskets tau siv tau ntev, xws li 20 txog 40 xyoo. Cov gaskets roj hmab feem ntau kav ntev li 5 txog 10 xyoo. Cov gaskets silicone tuaj yeem kav ntev txog 15 xyoo lossis ntau dua hauv qee qhov kev siv. Lub neej ntev no los ntawm lawv qhov ruaj khov thiab tiv taus kev hnav thiab rhuav. Cov yam xws li hom roj hmab siv, kub heev, siab, lossis tshuaj lom neeg tuaj yeem ua rau kev puas tsuaj sai dua. Kev saib xyuas kom zoo, suav nrog kev tshuaj xyuas tsis tu ncua, kev ntxuav, thiab kev teeb tsa kom raug, ua rau lawv lub neej ntev dua. Piv txwv li, kev zam kev nruj dhau tiv thaiv kev ua tsis tiav ua ntej.

Cov Khoom Siv Seal Mechanical Tus Nqi thiab Lub Neej Ntev

Cov foob pob hluav taws xob sawv cev rau kev nqis peev tseem ceeb dua li cov gaskets. Lawv txoj kev tsim qauv siab heev thiab kev tsim khoom raug ua rau muaj nqi siab dua. Tus nqi nruab nrab rau cov foob pob hluav taws xob txheem kev lag luam sib txawv raws li hom thiab thaj chaw:

Cov foob pob zeb ceramic feem ntau kim dua vim lawv lub zog ruaj khov thiab tiv taus kev hnav. Kev hloov pauv ntawm tus nqi hauv cheeb tsam raug cuam tshuam los ntawm cov yam xws li tus nqi tsim khoom hauv zos, kev thov, thiab cov se xa khoom tuaj.

Lub neej ntev ntawm cov foob no kuj txawv ntawm hom:

Feem ntau cov foob pob hluav taws xob muaj lub neej ua haujlwm ntev dua. Lawv qhov xwm txheej ua ntej sib dhos txo qhov yuam kev teeb tsa.Cov foob sib xyaw, zoo li cov hom caij nplooj ntoos hlav ib leeg, muaj lub neej luv dua. Lawv lub zog nyob ntawm qhov kev teeb tsa kom raug. Cov foob sib npaug yog tsim los rau cov tshuab siab. Lawv muab lub neej ntev dua vim muaj kev faib tawm ntawm cov zog hydraulic sib npaug. Cov foob tsis sib npaug yog cov nqi tsim nyog dua tab sis muaj lub neej luv dua hauv cov xwm txheej nyuaj. Cov foob hlau bellows qhia txog kev ua kom muaj zog dua hauv qhov chaw kub siab. Cov foob sib tov muaj lub neej hloov pauv ntau heev. Qhov no nyob ntawm qhov sib tov sib xyaw thiab qhov abrasiveness ntawm cov ntaub ntawv.

Kev Xaiv Khoom Siv Rau Cov Cheebtsam Sealing

Kev Xaiv Khoom Siv Gasket

Kev xaiv cov khoom siv gasket kom raug yog qhov tseem ceeb rau kev kaw kom zoo. Cov kws ua vaj tse yuav tsum xav txog cov kev cai tshwj xeeb ntawm daim ntawv thov.Kev sib raug zoo ntawm tshuaj lom neegyog qhov tseem ceeb ntawm kev ua tau zoo ntawm lub gasket. Cov khoom siv gasket yuav tsum sib xws nrog cov kua lossis roj uas nws yuav kov. Rau kev ua tau zoo mus sij hawm ntev, cov khoom siv yuav tsum tiv taus cov tshuaj lom neeg. Nws kuj tseem yuav tsum tiv taus kev nqus dej, o, lossis kev puas tsuaj raws sijhawm. Cov xov xwm uas lub gasket yuav raug rau yog qhov tseem ceeb uas yuav tsum xav txog. Kev tiv taus tshuaj lom neeg ntawm cov khoom siv gasket yog qhov tseem ceeb heev. Cov tshuaj lom neeg tuaj yeem cuam tshuam rau cov khoom ua haujlwm thiab kev ua haujlwm ntawm cov khoom siv. Nws tseem ceeb heev uas yuav tsum xav txog qhov kub thiab txias yuav muaj rau kev tiv taus tshuaj lom neeg. Ntau cov kua dej tuaj yeem ua rau muaj kev kub ntxhov ntau dua ntawm qhov kub siab dua.

Cov Khoom Siv Seal Mechanical Seals

Kev xaiv cov khoom siv rau cov khoom siv kho tshuabtseem ceeb ib yam nkaus, tshwj xeeb tshaj yog nyob rau hauv qhov chaw nyuaj. Rau cov xov xwm abrasive, qhov nyuaj ntawm cov ntaub ntawv foob ntsej muag yog qhov tseem ceeb rau kev tiv thaiv kev hnav. Tungsten carbide thiab silicon carbide yog qhov nyiam vim lawv qhov nyuaj tshwj xeeb thiab kev hnav tsis kam. Silicon Carbide yog qhov nyuaj heev thiab hnav-resistant, ua rau nws haum rau cov ntawv thov abrasive. Cov khoom sau tuaj yeem txhim kho lubricity thiab cua sov dissipation. Tungsten Carbide yog cov khoom siv tawv thiab robust, kuj haum rau cov chaw xav tau. Nws tsis yog brittle dua li Silicon Carbide. Txawm li cas los xij, lawv qhov brittle xwm yuav tsum tau xav txog qhov loj me ntawm cov khoom abrasive thiab concentration. Qhov no tiv thaiv chipping lossis tawg. Thaum tshuaj lom neeg tawm tsam kuj muaj, cov ntaub ntawv yuav tsum muaj ob qho tib si tshuaj lom neeg thiab hnav tsis kam. Qhov no qee zaum xav tau cov txheej txheem tshwj xeeb lossis kev kho saum npoo.

Thaum Twg Yuav Tsum Xaiv Lub Gasket

Cov Xwm Txheej Zoo Tshaj Plaws rau Kev Siv Gasket

Cov gaskets yog cov khoom siv sib khi zoo tshaj plaws hauv ntau daim ntawv thov. Lawv zoo heev rau cov kab ke uas muaj qhov xav tau siab thiab kub tshwj xeeb. Piv txwv li, cov gaskets hlau ruaj khov haum rau cov kab ke siab. Cov foob silicone lossis fluorosilicone ua haujlwm tau zoo hauv qhov chaw kub siab. Kev sib raug zoo ntawm cov tshuaj kuj yog qhov tseem ceeb. Cov khoom siv gasket yuav tsum tiv taus cov tshuaj tshwj xeeb. Fluorosilicone zoo rau cov kab ke roj. FDA-pom zoo silicone zoo tagnrho rau kev siv khoom noj thiab tshuaj. Kev xav tau kev hloov kho feem ntau xav tau cov gaskets tshwj xeeb. Qhov no ua kom ntseeg tau tias muaj qhov haum thiab kev ua haujlwm zoo tshaj plaws.

Cov lag luam siv cov gaskets dav dav. Kev lag luam tsheb siv lawv hauv cov cav, cov roj, thiab cov kis. Lawv tiv thaiv kev xau roj, roj, thiab cov dej txias. Hauv kev tsav dav hlau, cov foob tseem ceeb tswj kev ua haujlwm ntawm lub cev. Lawv ua haujlwm hauv qhov kub siab thiab kub heev. Qhov no ua kom lub cav dav hlau thiab lub tshuab hydraulic ua haujlwm tau zoo. Kev lag luam roj thiab roj av siv cov gaskets hauv cov kav dej thiab cov tshuab. Lawv tiv thaiv kev xau phom sij thaum thauj roj, roj, thiab kua. Kev tsim khoom siv cov gaskets los txo kev co thiab xyuas kom meej qhov sib dhos. Qhov no txhim kho kev ua haujlwm ntawm lub cev thiab txo kev txij nkawm. Cov gaskets NBR yog cov khoom siv hauv cov khoom siv cav tsheb thiab cov tshuab roj. Lawv tiv taus roj thiab roj. Lawv kuj tshwm sim hauv cov khoom siv roj thiab roj av thiab cov tshuab kev lag luam.

Cov Kev Txwv ntawm Gaskets

Cov gaskets muaj cov kev txwv tshwj xeeb. Qhov kub thiab txias yog ib qho tseem ceeb. Cov ntaub ntawv zoo li PTFE hauv cov modular seals muaj cov kev txwv kub. Cov kev txwv no tuaj yeem txo qis thaum lub siab nce siab. Rau cov ntawv thov saum toj no 500 ° F, cov diaphragm seals tag nrho-welded zoo dua li cov modular seals nrog PTFE gaskets. Qhov kub siab kuj txo qhov siab tshaj plaws ntawm cov flanged installations. Cov engineers yuav tsum xav txog qhov siab thiab qhov kub thiab txias ntawm ntau yam khoom. Qhov no suav nrog cov yas, elastomers, thiab kho vajtse.

Kev siab kuj txwv cov gaskets. Cov gaskets mos dua, zoo li BISCO silicone ua npuas ncauj, ua haujlwm zoo rau ntawm cov chaw tsis sib xws. Txawm li cas los xij, cov ntaub ntawv denser, xws li roj hmab khov kho (70–90 Shore A), yog qhov tsim nyog rau kev siv siab. Kev txav mus los qhia txog lwm qhov kev txwv. Qhov no cuam tshuam nrog lub gasket 'compression set.' Compression set yog lub gasket lub peev xwm rov qab mus rau nws cov duab qub tom qab compression. Gaskets nrog lub siab compression set tuaj yeem tsim cov qhov sib txawv thiab xau dhau sijhawm. Qhov no yog qhov tseeb tshwj xeeb hauv cov ntawv thov dynamic. Cov ntaub ntawv zoo li PORON® polyurethane, paub txog lawv cov compression set qis, zoo tagnrho rau cov xwm txheej zoo li no.

Thaum Twg Yuav Tsum Xaiv Lub Mechanical Seal

Cov Xwm Txheej Zoo Tshaj Plaws rau Kev Siv Cov Khoom Siv Mechanical Seals

Cov kws ua haujlwm xaiv cov foob rau cov ntawv thov uas xav tau kev tswj hwm qhov xau thiab kev ntseeg siab zoo tshaj plaws. Cov foob no muab cov kev daws teeb meem niaj hnub, daws cov teeb meem nrog cov txheej txheem ntim khoom ib txwm muaj. Lawv tsim cov foob txhim khu kev qha dua los ntawm kev siv cov khoom sib xyaw ua ke uas tig thiab ruaj khov uas sib cuag hauv qab cov xwm txheej tswj tau. Tus qauv tsim no txo ​​qhov hnav thiab tsim kua muag, txo qhov kev sib txhuam thiab kev tsim cua sov. Thaum kawg, qhov no ua rau lub neej ntev dua rau cov khoom siv.

Cov foob no siv rau ntau yam lag luam. Qhov no suav nrog roj thiab roj av, kev ua tshuaj lom neeg, kev tswj dej thiab dej khib nyiab, kev tsim hluav taws xob, khoom noj thiab dej haus, thiab tshuaj. Hauv kev lag luam roj thiab roj av, cov foob yuav tsum tiv taus qhov kub thiab txias heev, nrog rau cov kua dej uas muaj zog thiab cov kua dej uas ua rau tawv. Hauv kev lag luam khoom noj thiab dej haus, cov foob yuav tsum ua raws li cov qauv kev huv huv thiab ua haujlwm tau zoo hauv qhov chaw huv thiab kub tsawg.

Xav txog cov yam ntxwv ntawm cov kua dej thaumxaiv cov foobCov kua dej uas xeb yuav tsum tau cov khoom siv uas tiv taus tshuaj lom neeg. Cov slurries uas ua rau xeb yuav tsum tau cov ntsej muag foob tawv, tiv taus hnav. Qhov kub thiab txias ntawm cov kua dej kuj ua lub luag haujlwm tseem ceeb. Cov foob yuav tsum tau tiv taus qhov kub ntawm -40 ° C txog 200 ° C hauv cov ntawv thov xws li cov chaw ua tshuaj lom neeg. Lawv zoo tagnrho rau cov ntawv thov uas muaj qhov kub thiab txias heev lossis hloov pauv kub sai. Lawv tiv thaiv kev puas tsuaj, kev hloov pauv, thiab kev poob ntawm elasticity hauv elastomers. Lawv kuj tswj lub zog kho tshuab hauv cov hlau. Kev xaiv cov khoom siv thiab kev txias kom raug yog qhov tseem ceeb kom tsis txhob muaj cua sov hauv zos, kev puas tsuaj ntawm cov khoom siv, thiab kev poob siab thermal.

Rau cov ntawv thov uas muaj ntau yam kev xav tau siab, txij qis mus rau siab, cov foob yog qhov zoo dua. Cov ntawv thov siab, xws li cov twj tso kua mis hauv cov chaw roj, xav tau cov foob uas muaj peev xwm tiv taus lub zog loj. Cov qauv tsim tshwj xeeb ncav cuag txog 10,000 psi (700 bar) rau cov foob rotary siab. Cov kev npaj foob ob npaug yog qhov zoo dua rau kev nyab xeeb ntawm cov txheej txheem thaum cuam tshuam nrog cov kua lom lossis txaus ntshai. Lawv muab kev tiv thaiv zoo dua los ntawm kev xau thiab kev ua qias tuaj ib puag ncig. Cov kev npaj tandem raug pom zoo rau cov ntawv thov lom lossis txaus ntshai, nrog rau lub foob sab nraud ua haujlwm ua lub zog thaub qab tag nrho. Cov foob ob lub thawv yog qhov zoo dua rau cov ntawv thov tseem ceeb uas kev ntseeg tau thiab kev nyab xeeb yog qhov tseem ceeb. Cov foob sib npaug raug pom zoo rau cov kab ke nrog cov twj tso kua mis siab ua haujlwm ntawm 10 barg lossis ntau dua. Lawv muab kev ntseeg tau zoo dua thiab kev txuag nyiaj mus sij hawm ntev los ntawm kev faib lub siab kom sib npaug. Qhov no txo ​​qis kev sib txhuam thiab kev tsim cua sov, tiv thaiv kev puas tsuaj rau cov ntsej muag foob thiab cov ntaub ntawv. Qhov no ua rau txo qis kev hnav thiab tsim kua muag thiab lub neej ua haujlwm ntev dua.

Cov Kev Txwv ntawm Cov Khoom Siv Mechanical

Txawm hais tias lawv muaj qhov zoo, cov foob muaj qhov txwv. Kev sib haum xeeb ntawm cov kua dej ua rau muaj teeb meem loj heev. Qhov no suav nrog cov khoom siv abrasive slurries, cov tshuaj corrosive, thiab cov roj viscous. Cov khoom me me abrasive tuaj yeem ua rau kev hnav sai dua. Cov tshuaj reactivity tuaj yeem ua rau cov ntaub ntawv foob puas tsuaj. Qhov no yuav tsum tau xaiv cov khoom siv zoo thiab cov kev teeb tsa tshwj xeeb.

Qhov nyuaj ntawm kev tsim qauv yog lwm yam. Qhov xwm txheej nyuaj ntawm cov foob, uas muaj ntau lub qhov sib txuas ntawm kev sib khi thiab cov txheej txheem txhawb nqa, ua rau lawv txoj kev tsim qauv thiab kev sib dhos nyuaj. Qhov nyuaj no cuam tshuam rau qhov yooj yim ntawm kev teeb tsa thiab kev ntseeg siab ntawm kev ua haujlwm. Cov kws ua haujlwm yuav tsum sib npaug kev ua tau zoo nrog kev xav txog kev siv tau zoo xws li qhov chaw txwv.

Tus nqi kuj yog qhov yuav tsum xav txog. Ib qho kev npaj ib zaug feem ntau pheej yig dua rau kev teeb tsa thiab kev saib xyuas. Txawm li cas los xij, ib qhoob chav foob kev npaj, uas kim dua, yog qhov tsim nyog thaum xav tau lub tshuab roj sib cais kom ntseeg tau tias muaj kev ntseeg siab. Qhov nyuaj ntawm kev teeb tsa yog ib qho tseem ceeb. Cov foob sib xyaw xav tau cov kws tshaj lij rau kev teeb tsa. Txawm hais tias cov foob cartridge yooj yim dua rau kev teeb tsa, lawv tseem muaj qhov yuam kev. Qhov no qhia txog qhov xav tau ua raws li cov lus qhia ntawm cov chaw tsim khoom.

Cov gaskets yog qhov tseem ceeb rau kev siv sealing static. Lawv tiv thaiv kev xau ntawm cov khoom tsis txav. Cov seals mechanical yog qhov tseem ceeb rau kev sealing dynamic. Lawv tswj cov kua dej xau hauv cov khoom siv tig. Kev xaiv cov khoom sealing tsim nyog yog qhov tseem ceeb. Qhov no ua kom lub kaw lus ruaj khov, ua haujlwm tau zoo, thiab muaj kev nyab xeeb. Nws kuj tseem ua kom zoo dua kev ua haujlwm.

Cov Lus Nug Feem Ntau

Qhov txawv tseem ceeb ntawm lub gasket thiab lub mechanical seal yog dab tsi?

Cov gaskets muab kev sib khi zoo li qub ntawm cov khoom tsis txav mus los. Cov seals mechanical muab kev sib khi dynamic rau cov khoom siv tig. Lawv tiv thaiv cov kua dej xau thaum lub sijhawm txav mus los tas li.

Thaum twg cov engineers yuav tsum xaiv lub gasket es tsis yog lub mechanical seal?

Cov kws ua vaj tse xaiv cov gaskets rau kev sib txuas ruaj khov. Lawv pheej yig rau cov flange seals lossis cov housing seals. Gaskets ua haujlwm tau zoo thaum tsis muaj kev txav mus los ntawm cov khoom sib xyaw.

Muaj tej yam dab tsi cuam tshuam rau lub neej ntawm lub mechanical seal?

Kev teeb tsa kom zoo, kev xaiv cov khoom siv, thiab cov xwm txheej ua haujlwm cuam tshuam rau lub neej ntev. Cov khoom siv abrasive, qhov kub siab, thiab kev hloov pauv ntawm lub siab ua rau lub foob tsis siv tau ntev.