Vim li cas cov kua dej sib xws thiaj li tseem ceeb rau cov khoom siv kho tshuab?

Cov kua dej tsis sib xws ua rau muaj kev phom sij tam sim ntawdlub tshuab foobkev ua tsis tiav, ua rau muaj kev cuam tshuam loj heevKev Tawm Ntawm Lub Tshuab Sealthiab lub sijhawm tsis ua haujlwm ntawm lub kaw lus kim heev. Kev sib haum xeeb ntawm cov kua dej ncaj qha qhia txog lub neej ua haujlwm thiab kev ntseeg tau ntawm lub foob pob hluav taws xob. Piv txwv li, xaiv qhov raugO-ringcov khoom siv yog qhov tseem ceeb. Kev xaiv cov khoom siv kom zoo rau Mechanical Seals, xws li sivSilicon Carbide Seal Facesthaum tsim nyog, tiv thaiv kev puas tsuaj ua ntej lub sijhawm thiab kev puas tsuaj loj heev. Qhov no tseem ceeb heev rauCov ntsaws ruaj ruaj uas tiv taus tshuaj lom neeg rau kev ua phemxov xwm.

Cov Ntsiab Lus Tseem Ceeb

• Kev sib haum xeeb ntawm cov kua dej yog qhov tseem ceeb heev raucov khoom siv kho tshuabNws tiv thaiv cov foob kom tsis txhob tawg thiab xau.
• Cov kua dej uas tsis sib haum yuav ua rau muaj ntau yam teeb meem. Cov no suav nrog kev puas tsuaj rau cov khoom siv, kev xeb, thiab kev ua tsis tiav ntawm lub foob thaum ntxov.
• Xaiv cov ntaub ntawv zoo rau cov foob yog qhov tseem ceeb. Qhov no ua kom lub foob ua haujlwm zoo thiab kav ntev.
• Kev kuaj cov kua thiab cov khoom siv pab tau ntau heev. Nws ua kom ntseeg tau tias cov foob tuaj yeem ua haujlwm uas lawv xav tau ua.
• Yog tsis quav ntsej txog qhov sib xws ntawm cov kua dej ces yuav raug nqi nyiaj. Nws kuj tseem tuaj yeem ua rau muaj teeb meem kev nyab xeeb thiab ua rau ib puag ncig puas tsuaj.

Nkag Siab Txog Kev Sib Piv ntawm Cov Kua Dej rau Cov Khoom Siv Mechanical Seals

Txhais Kev Sib Xws ntawm Cov Tshuaj

Kev sib raug zoo ntawm cov tshuaj lom neeg yog hais txog lub peev xwm ntawm cov khoom siv foob pob kom tiv taus kev puas tsuaj thaum nws kov cov kua dej tshwj xeeb. Qhov kev tiv thaiv no yog qhov tseem ceeb rau kev tiv thaiv kev ua tsis tiav ntawm lub foob. Muaj ntau yam khoom siv tshuaj lom neeg tseem ceeb uas txhais tau tias qhov kev sib raug zoo no. Cov khoom no suav nrog qhov kub thiab txias ntawm cov kua dej, nws qib pH, thiab lub zog ntawm lub kaw lus. Qhov kev sib xyaw ntawm cov tshuaj hauv cov kua dej kuj tseem ua lub luag haujlwm tseem ceeb. Piv txwv li, cov khoom siv foob pob yuav ua haujlwm tau zoo nrog cov tshuaj lom neeg diluted. Txawm li cas los xij, nws tuaj yeem ua tsis tiav sai thaum raug rau cov tshuaj lom neeg uas muaj zog heev. Cov kws ua haujlwm yuav tsum soj ntsuam cov yam no kom zoo. Qhov kev ntsuam xyuas no pab tiv thaiv cov khoom tawg, xeb, lossis lwm yam kev tawm tsam tshuaj lom neeg uas ua rau muaj kev puas tsuaj.kev ruaj khov ntawm lub foob.

Kev Xav Txog Khoom Siv Lub Cev

Dhau ntawm cov tshuaj lom neeg, cov khoom siv lub cev ntawm cov kua dej muaj feem cuam tshuam rau kev ua haujlwm ntawm lub foob. Cov kua viscosity thiab lub zog tshwj xeeb yog cov yam tseem ceeb rau kev ua haujlwm ntawm lub foob. Cov kua viscosity qis, xws li dej ntshiab, tuaj yeem ua rau muaj kev hnav ntau dua ntawm cov ntsej muag foob. Qhov no tshwm sim vim tias lawv muab cov kua dej tsis txaus, tshwj xeeb tshaj yog thaum qhov kub ntawm cov kua dej nce ntxiv. Qhov xwm txheej no feem ntau tsim kev cov nyom rau Plan 54 systems. Ntawm qhov tod tes, ntxiv glycols, xws li ethylene glycol lossis propylene glycol, rau hauv dej ua rau cov khoom sib xyaw viscosity ntau ntxiv. Qhov no muab kev nplua zoo dua rau cov ntsej muag foob, txuas ntxiv lawv lub neej ua haujlwm. Cov kua dej viscosity siab, txawm li cas los xij, yuav tsum tau siv cov kev sib xyaw ua ke ntawm cov ntsej muag tawv, xws li silicon carbide piv rau silicon carbide. Qhov no tiv thaiv kev tawg ntawm cov ntsej muag carbon, uas tuaj yeem tshwm sim nrog cov ntaub ntawv mos dua. Ntxiv mus, cov kua dej viscosity qis xws li cov cawv yooj yim (methanol, ethanol, propanol) feem ntau tsis haum rau kev tswj cov kua dej ruaj khov. Lawv muaj cov khoom siv lubricating tsis zoo thiab cov pa siab. Qhov no tseem muaj tseeb txawm tias lawv muaj peev xwm nyob twj ywm kua thiab tswj cov viscosity nruab nrab ntawm qhov kub qis heev. Kev txiav txim siab zoo ntawm cov khoom siv lub cev no ua kom muaj lub neej ntev thiab kev ua haujlwm txhim khu kev qha ntawmCov Khoom Siv Kho Tshuab.

Cov txheej txheem ntawm Mechanical Seal Failure los ntawm Incompatibility

Kev puas tsuaj ntawm cov khoom siv thiab kev xeb

Kev tsis sib haum xeeb ntawm cov tshuaj feem ntau ua rau cov khoom puas tsuaj thiab xeb in Cov Khoom Siv Kho TshuabQhov no tshwm sim thaum cov ntaub ntawv foob, suav nrog lub ntsej muag foob thiab elastomers, tsis tuaj yeem tiv taus cov tshuaj lom neeg sib xyaw, qhov kub thiab txias, thiab qhov siab ntawm cov kua dej ua haujlwm. Qhov tsis sib xws no ua rau muaj kev tawm tsam tshuaj lom neeg, uas ua rau cov khoom foob o, ntsws, tawg, lossis xeb. Kev puas tsuaj no ua rau lub foob puas tsuaj thiab cov khoom siv kho tshuab, thaum kawg ua rau xau thiab lub neej ua haujlwm luv dua.Coking yog lwm hom kev puas tsuaj ntawm cov khoomNws yog los ntawm kev oxidation lossis tshuaj lom neeg tawg ntawm cov khoom, tsim cov khoom seem hnyav rau ntawm cov khoom foob.

Muaj ntau txoj kev xeb tshwj xeeb uas tuaj yeem tshwm sim. Kev xeb ntawm kev ntxhov siab tshwm sim hauv cov khoom siv hlau nyob rau hauv kev ntxhov siab hauv ib puag ncig corrosive. Qhov no ua rau muaj cov qhov xeb xaiv, kev xeb hauv zos, thiab thaum kawg tawg. Austenitic stainless hlau thiab tooj liab alloys yog qhov yooj yim, piv txwv li, lub tes tsho tsav 1Cr18Ni9Ti hauv cov twj tso kua dej ammonia. Kev xeb cuam tshuam nrog kev puas tsuaj ntawm cov khoom los ntawm kev ua haujlwm hloov pauv ntawm kev hnav thiab xeb. Ib qho nruab nrab corrosive ua rau cov tshuaj tiv thaiv ntawm qhov chaw sib cuag ntawm lub foob, rhuav tshem cov txheej oxide tiv thaiv thiab ua rau muaj kev xeb ntxiv. Kev xeb qhov sib txawv tshwm sim hauv qhov sib txawv me me ntawm cov hlau lossis cov khoom tsis yog hlau. Cov xov xwm tsis ruaj khov hauv cov qhov sib txawv no ua rau cov hlau xeb sai dua. Qhov no pom tau ntawm cov rooj zaum caij nplooj ntoos hlav thiab cov ncej lossis cov nplhaib them nyiaj pabcuam thiab cov ncej, ua rau muaj cov qhov lossis cov ntsiab lus xeb.

Kev xeb hluav taws xob muaj ntau yam khoom siv hauv cov kua electrolyte. Cov peev xwm sib txawv tsim cov nyhuv txuas hluav taws xob, txhawb kev xeb hauv ib yam khoom siv thaum tiv thaiv nws hauv lwm yam. Qhov no yog qhov tshwm sim hauv cov khub sib txhuam sib khi, xws li tooj liab thiab nickel-chromium hlau hauv oxidizing media. Kev xeb tag nrho muaj kev xeb sib npaug thoob plaws qhov chaw ntawm cov khoom sib cuag nrog cov media. Qhov no ua rau txo qhov hnyav, poob lub zog, thiab txo qhov nyuaj. Ib qho piv txwv yog 1Cr18Ni9Ti stainless hlau ntau lub caij nplooj ntoos hlav hauv dilute sulfuric acid. Kev xeb hauv zos qhia cov chaw lossis qhov etched. Cov txheej saum npoo av dhau los ua xoob thiab porous, yooj yim tev tawm thiab poob lub zog hnav. Qhov no yog kev xaiv yaj ntawm ib theem hauv ntau theem alloys lossis ib qho khoom hauv ib theem khoom khov. Cobalt-based cemented carbide hauv high-temperature strong alkali thiab reaction sintered silicon carbide, qhov twg dawb silicon corrodes, yog cov piv txwv.

Kev o thiab kev tawg ntawm cov elastomers

Cov kua dej tsis sib haum ua rau muaj teeb meem loj xws li o thiab tawg hauv cov elastomers, uas yog cov khoom tseem ceeb ntawm cov foob pob hluav taws xob. Piv txwv li,NBR elastomers raug rau cov chaw muaj hydrogen siabmuaj kev nkag mus rau hauv hydrogen ntau dhau. Qhov no ua rau o, ua pob, thiab ua rau lub cev puas tsuaj sai sai, feem ntau ua rau RGD (Rapid Gas Decompression) tsis ua haujlwm thiab tawg. Cov elastomers ib txwm muaj kuj raug kev o thiab ua pob vim yog hydrogen nkag mus thiab yaj hauv cov xwm txheej hydrogen siab zoo sib xws.

Lwm hom kua dej kuj ua rau muaj kev pheej hmoo rau cov elastomers tshwj xeebPiv txwv li, EPDM o thiab mos thaum nws kov cov khoom siv roj av xws li roj, roj nplaum/greases, thiab cov roj zaub lossis cov roj ntuj/rog. FKM/Viton elastomers ntsib kev puas tsuaj los ntawm cov tshuaj pH siab (alkaline), tshwj xeeb tshaj yog ammonia pom nyob rau hauv cov roj compressor tub yees. Qhov kev raug no ua rau muaj kev sib sau ua ke sai sai, tawg ntawm qhov chaw, thiab poob ntawm elasticity. Acetates, suav nrog acetic acid, peroxyacetic/peracetic acid, ethyl acetate, butyl acetate, thiab acetate ntsev, kuj ua rau muaj teeb meem loj rau FKM/Viton. Cov kua no ua rau o, mos, tawm tsam lossis tawg ntawm qhov chaw, poob ntawm elasticity thiab nco, thiab xau thaum ntxov. Ib yam li ntawd, acrylates zoo li acrylic acid, poly(vinyl acrylate), methyl/ethyl/butyl acrylate, thiab methacrylates (piv txwv li, methyl methacrylate) ua rau muaj kev puas tsuaj zoo sib xws hauv FKM/Viton, feem ntau yuav tsum tau siv cov khoom siv tiv taus ntau dua xws li PTFE lossis FFKM.

Kev Tawm Tsam thiab Kev Yaj Tawm ntawm Tshuaj Lom Zem

Kev tawm tsam thiab kev yaj ntawm cov tshuaj lom neeg yog cov qauv tsis sib xws loj heev. Cov kua dej uas tawm tsam tuaj yeem cuam tshuam ncaj qha rau cov khoom siv foob, rhuav tshem nws cov qauv molecular. Cov txheej txheem no ua rau cov khoom siv tsis muaj zog, ua rau nws tawg lossis mos. Piv txwv li, cov kua qaub lossis cov hauv paus muaj zog tuaj yeem yaj qee cov polymers lossis cov hlau siv hauv kev tsim cov foob. Cov tshuaj lom neeg no tshem tawm cov khoom siv ntawm cov khoom foob, ua rau nyias, pitting, lossis tag nrho disintegration. Kev ua tiav ntawm lub ntsej muag foob lossis cov khoom sib khi thib ob txo qis sai sai nyob rau hauv cov xwm txheej zoo li no. Qhov no ua rau muaj kev xau tam sim ntawd thiab kev ua tsis tiav ntawm lub foob. Qhov ntau npaum li cas ntawm kev tawm tsam tshuaj lom neeg nyob ntawm cov kua dej qhov concentration, kub, thiab lub sijhawm ntawm kev raug. Txawm tias cov tshuaj lom neeg zoo li me me tuaj yeem ua rau muaj kev puas tsuaj loj heev dhau sijhawm yog tias cov khoom foob tsis muaj kev tiv thaiv zoo.

Kev Hnav Thiab Kev Yaig ntawm Cov Hlau

Kev hnav tsis zoo yog ib qho kev ua tsis tiav rau Mechanical Seals. Cov khoom tawv hauv cov kua dej ua haujlwm sib txhuam rau ntawm lub ntsej muag ntawm lub foob. Cov khoom no ua haujlwm uacov khoom siv txhuam. Lawv ua rau cov ntsej muag foob hnav sai dua. Cov kua uas muaj cov khoom me me ntau ua rau cov ntsej muag foob hnav. Qhov no kuj tseemcuam ​​tshuam rau lawv txoj kev sib phimKev ua qias tuaj ntawm cov kua dej ua haujlwm nrog cov khoom siv abrasive ua rau lub foob hnav sai dua. Qhov no ua rauqhov xau los ntawm qhov sib txuas ntawm lub sealing thawj zaug. Dhau sijhawm, cov khoom me me hauv cov kua dejtxo qhov ua tau zoo ntawm kev kawCov txheej txheem hnav no ua rau muaj zog dua hauv cov ntawv thov uas muajcov kua uas muaj cov khoom khov kho los yog cov kua uas ua rau tawv tawv.

Kev puas tsuaj ntawm cov khoom foob los ntawm cua sov

Kev puas tsuaj ntawm cov cua sov tshwm sim thaum qhov kub siab ua rau cov khoom siv foob puas tsuaj. Cov kua dej tsis sib xws tuaj yeem ua haujlwm thaum kub heev. Lawv kuj tuaj yeem ua rau muaj kev tsis haum tshuaj. Cov xwm txheej no thawb cov khoom siv foob mus dhau lawv qhov txwv. Txhua yam khoom siv foob muaj qhov kub tseem ceeb. Tshaj qhov txwv no ua rau cov khoom siv poob nws lub zog thiab kev ua tiav.

Xav txog cov kev txwv kub no rau cov ntaub ntawv foob feem ntau:

Cov foob pob ua haujlwm siab feem ntau tuaj yeem tiv taus qhov kub thiab txias txog li316°C (600°F)lossis siab dua. Cov ntaub ntawv xws li graphite thiab silicon carbide raug lees paub rau lawv qhov kev ruaj khov thermal hauv kev siv kub siab. Thaum cov ntaub ntawv lwj, lawv yuav tawg, mos, lossis yaj. Qhov no ua rau lub foob tsis muaj peev xwm tiv thaiv kev xau.

Kev Cuam Tshuam ntawm Cov Kua Tsis Sib Xws rau Kev Ua Haujlwm Zoo

Kev Xaim Ntau Ntxiv thiab Kev Poob Khoom

Cov kua dej uas tsis sib haum ua rau muaj kev xau ntau ntxiv los ntawm cov foob pob. Thaum cov khoom siv foob tsis tuaj yeem tiv taus cov kua dej uas nws muaj, nws poob nws qhov kev ua haujlwm. Qhov no ua rau cov kua dej tawm hauv lub cev. Cov kev xau no ua rau cov khoom poob ntau heev, tshwj xeeb tshaj yog nrog cov tshuaj muaj nqis lossis cov tshuaj lom neeg. Qhov no tsis yog tsuas yog ua rau cov peev txheej pov tseg xwb tab sis kuj tseem yuav tsum tau rov ua dua lossis hloov cov kua dej uas ploj lawm. Kev poob cov khoom tas li cuam tshuam ncaj qha rau cov nyiaj tau los ntawm lub tuam txhab.

Txo Lub Sijhawm Siv Khoom Thiab Kev Ua Haujlwm

Kev ua tsis tiav ntawm lub foob pob hluav taws xob, feem ntau yog vim cov kua dej tsis sib xws, cuam tshuam loj heev rau lub sijhawm ua haujlwm ntawm cov khoom siv thiab cov zis ntau lawm. Kev siv cov khoom siv foob tsis raug uas tsis haum rau cov xwm txheej ua haujlwm, xws li kub, siab, lossis kev raug tshuaj lom neeg, tuaj yeem ua rau puas tsuaj sai. Ib yam li ntawd, kev hloov cov kua dej yam tsis xav txog lawv qhov sib xws nrog cov khoom siv foob tuaj yeem ua rau muaj kev cuam tshuam tshuaj lom neeg. Cov kev cuam tshuam no ua rauua kom mos, o, tawg, lossis lwm yam kev puas tsuajCov teeb meem no ua rau lub foob tsis muaj peev xwm tuav cov kua dej tau zoo. Qhov no ua rau lub kaw lus tsis ua haujlwm zoo, cov nqi kho ntxiv, thiab lub sijhawm tsis ua haujlwm. Piv txwv li, lub chaw ua roj av tuaj yeem raug kev poob ntawm$50,000 ib teev vim yog lub sijhawm tsis ua haujlwmyog vim muaj qhov xau ntawm lub foob pob hluav taws xob. Muaj ib qho teeb meem tshwj xeeb, ib lub Hoobkas tau poob $ 100,000 hauv kev kho thiab poob cov khoom tsim tawm vim muaj qhov xau. Qhov no qhia txog cov teeb meem kev lag luam tseem ceeb ntawm kev ua tsis tiav zoo li no.

Cov Nqi Kho Mob Siab Rau Cov Khoom Siv Mechanical Seals

Cov kua dej tsis sib xws ua rau cov nqi kho dua siab duaCov Khoom Siv Kho Tshuab. Thaum cov foob tsis ua haujlwm ua ntej lub sijhawm vim yog kev tawm tsam tshuaj lom neeg lossis kev puas tsuaj, lawv xav tau kev hloov pauv ntau zaus. Qhov no ua rau muaj kev xav tau cov khoom seem thiab cov neeg ua haujlwm ntau dua. Cov kws kho tshuab yuav tsum siv sijhawm ntau dua los kuaj mob thiab kho cov teeb meem. Kev ua tsis tiav rov qab kuj txhais tau tias muaj kev kho thaum muaj xwm txheej ceev ntau dua, uas feem ntau kim dua li kev saib xyuas uas tau npaj tseg. Cov nqi siab no ncaj qha txo qhov txiaj ntsig thiab ua rau cov peev nyiaj saib xyuas nyuaj.

Kev Pheej Hmoo Kev Nyab Xeeb thiab Kev Pheej Hmoo Ib puag ncig

Cov kua dej tsis sib haum ua rau muaj kev phom sij rau kev nyab xeeb thiab kev pheej hmoo rau ib puag ncig. Cov xau los ntawm cov Mechanical Seals uas tsis ua haujlwm ua rau cov neeg ua haujlwm raug cov tshuaj lom lossis cov pa phem. Qhov kev raug no tuaj yeem ua rau muaj teeb meem kev noj qab haus huv loj heev, suav nrog kev khaus ntawm daim tawv nqaij thiab lub ntsws, kev ua pa tsis zoo, thiab txawm tias ua rau mob qog nqaij hlav. Cov xwm txheej loj, xws li hluav taws, kev tawg, kev mus pw hauv tsev kho mob, thiab kev poob lub neej, tau tshwm sim vim yog cov tshuaj lom neeg tso tawm. Tsis tas li ntawm kev noj qab haus huv ntawm tib neeg, cov xau hauv kev lag luam ua rau muaj cov tshuaj lom neeg lossis cov tshuaj lom hauv huab cua. Cov xwm txheej no ua rau muaj kev puas tsuaj rau ib puag ncig mus sij hawm ntev, ua rau cov chaw nyob thiab ntau haiv neeg muaj kuab paug. Piv txwv liKev nchuav roj ntawm Deepwater Horizon thiab qhov kev puas tsuaj ntawm roj hauv Bhopalqhia txog qhov muaj peev xwm ua rau muaj kev puas tsuaj rau ib puag ncig. Piv txwv li, cov khoom siv roj av uas xau, ua rau cov av thiab cov dej qias neeg, ua rau cov tsiaj qus thiab tib neeg muaj kev noj qab haus huv. Cov kua dej uas yooj yim hlawv ua rau muaj kev pheej hmoo ntawm hluav taws thiab tawg tam sim ntawd. Txawm tias cov dej xau, txawm tias zoo li tsis hnyav heev, ua rau muaj kev nyuaj siab rau cov peev txheej dej tsawg thiab tuaj yeem ua rau raug mob lub cev, puas tsuaj rau cov qauv, thiab xeb.Kev teeb tsa lub foob kom raugpab cov lag luam txo lawv cov teeb meem ib puag ncig thiab ua raws li cov cai kev nyab xeeb nruj.

Kev Ua Haujlwm thiab Kev Ntseeg Siab ntawm Lub System Uas Tsis Zoo

Cov kua dej tsis sib haum ncaj qha ua rau kev ua haujlwm thiab kev ntseeg siab ntawm lub kaw lus tag nrho puas tsuaj. Cov khoom siv tsis sib haum ua rau cov khoom foob o, xeb, lossis tawg. Cov kua dej ua rau cov tshuaj lom neeg tawm tsam thiab xeb cov khoom foob thaum cov kws ua haujlwm tsis xaiv lawv kom raug rau daim ntawv thov. Kev xaiv lub foob tsis raug ua rau kev puas tsuaj ua ntej lub sijhawm, nce nqi, thiab ua rau muaj kev pheej hmoo kev nyab xeeb. Cov xwm txheej ua haujlwm tsis zoo lossis kev hloov pauv hauv cov txheej txheem tuaj yeem cuam tshuam qhov tsim thiab cov peev xwm ntawm cov khoom foob, yog li txo nws qhov kev ntseeg siab. Kev siv, cov kua dej ua haujlwm, thiab kev hloov pauv ib puag ncig txhua yam pab txhawb rau kev sib xyaw ua ke ntawm cov yam tseem ceeb uas cuam tshuam rau kev ntseeg siab ntawm lub foob. Kev siv cov ntaub ntawv tsim kho tsis raug yog qhov yuam kev ntau zaus uas ua rau lub foob tsis ua haujlwm sai sai. Piv txwv li, cov kua dej ua haujlwm nplaum xws li kua nplaum lossis molasses tuaj yeem khi cov ntsej muag foob ua ke, ua rau kev ua haujlwm tsis zoo. Qhov no txo ​​​​​​qhov ua tau zoo ntawm lub kaw lus thiab ua rau muaj kev cuam tshuam tsis tau npaj tseg, thaum kawg cuam tshuam rau tag nrho kev ua haujlwm.

Cov Yam Tseem Ceeb rau Kev Ua Kom Lub Mechanical Seal Sib Xws

Kev Tshawb Fawb Txog Cov Kua Dej

Kev tshuaj xyuas cov kua dej kom zoo yog lub hauv paus rau kev ua haujlwm ntawm lub foob pob hluav taws xob kom zoo. Cov kws ua haujlwm yuav tsum nkag siab txog cov yam ntxwv ntawm cov kua dej kom xaiv tau cov ntaub ntawv foob sib xws. Qhov kev tshuaj xyuas no suav nrog ntau yam tseem ceeb. Lawv tshuaj xyuas qhovcov kua dej teb rau qhov kev hloov pauv ntawm qhov kubQhov kub siab tuaj yeem ua rau cov kua dej ua cov roj nplua nyeem tsis zoo. Cov hydrocarbons me me yuav ua pa tau. Cov ntsev thiab cov caustics tuaj yeem ua rau muaj nag. Cov roj yuav tawg. Ntawm qhov tod tes, qhov kub txias dhau ua rau tawv thiab muaj viscosities siab. Qhov no ua rau lub zog shear nce ntxiv thiab ua rau lub ntsej muag puas tsuaj.

Cov kws tshuaj ntsuam xyuas suav txhua yam khoom ntawm cov kua dej. Lawv soj ntsuam qhov xwm txheej ntawm cov kua dej nws tus kheej. Qhov muaj cov khoom khov hauv cov dej ntws yog qhov tseem ceeb. Cov khoom ua qias tuaj, xws li H2S lossis chlorides, yuav tsum tau soj ntsuam zoo. Yog tias cov khoom yog cov kua, nws qhov kev sib xyaw ua ke tseem ceeb. Cov kws ua haujlwm kuj txiav txim siab seb cov khoom puas khov nyob rau hauv txhua qhov xwm txheej uas ntsib.

Cov kua viscosity yog qhov tseem ceeb uas yuav tsum xav txog, tshwj xeeb tshaj yog thaum kub ua haujlwm. Nws qhia txog hom kev lubrication. Cov kev pabcuam viscosity qis feem ntau xav tau kev sib xyaw ua ke ntawm lub ntsej muag mos thiab tawv. Cov kua viscosity siab dua tso cai rau kev ua kom cov kua zaj duab xis puv nkaus. Qhov no yuav siv cov kev sib xyaw ua ke ntawm cov tawv thiab tawv kom tsis txhob muaj teeb meem xws li blistering hauv cov ntaub ntawv mos. Cov khoom thiab cov concentration ntawm cov khoom dai lossis cov khoom siv crystallization kuj tseem ceeb heev. Hauv cov ntawv thov qias neeg lossis muaj kuab paug, cov khoom tawv dua li cov khoom siv ntsej muag tuaj yeem ua rau puas tsuaj. Qhov no xav tau cov ntaub ntawv ntsej muag tawv dua. Cov kua uas crystallize lossis ntsev kuj tuaj yeem ua rau puas tsuaj rau cov ntsej muag mos. Kev sib raug zoo ntawm cov khoom siv tshuaj lom neeg yog qhov tseem ceeb. Cov ntsej muag foob raug rau ntau yam kua txheej txheem. Qee qhov yog qhov ua phem thiab tuaj yeem tshuaj lom neeg nrog cov khoom siv. Cov no suav nrog cov khoom siv hauv paus, binder, lossis filler. Kev xav txog thermal kuj tseem ceeb. Cov yam ntxwv sab nraud (cov kua pumped, cov tsho cua sov / txias, cov phiaj xwm piping) thiab cov yam ntxwv sab hauv (kev sib txhuam, kev ntxhov siab) cuam tshuam rau qhov kub ntawm lub ntsej muag foob. Cov no tuaj yeem ua rau kev loj hlob thermal lossis retraction. Lawv kuj tuaj yeem rhuav tshem cov khoom impregnation lossis cov khoom khi. Thermal coning vim yog axial thermal gradients yog lwm qhov kev txhawj xeeb.

Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Xaiv Cov Khoom Siv Rau Cov Khoom Siv Mechanical Seals

Kev xaiv cov ntaub ntawv zoo yog qhov tseem ceeb rau kev ua kom zoo nkaujlub neej ntev thiab kev ua tau zoontawm Cov Khoom Siv Mechanical Seals. Cov kws ua haujlwm yuav tsum xaiv cov ntaub ntawv uas tiv taus cov kua dej tshwj xeeb cov tshuaj lom neeg thiab lub cev. Rau cov ntawv thov corrosive heev, xws li cov uas muaj cov kua qaub lossis cov hauv paus muaj zog, kev xaiv cov ntaub ntawv tshwj xeeb yog qhov tsim nyog. Cov ntsej muag carbon graphite qib acid muaj. Cov no tsis muaj cov khoom sau resin, ua rau lawv tsim nyog txawm tias muaj zog qis dua piv rau lwm cov qib carbon graphite. Txawm li cas los xij,direct sintered silicon carbidetau hloov lawv feem ntau. Silicon carbide yog ib qho kev xaiv rau cov ntsej muag tawv. Nws muaj kev ua tau zoo thermal conductivity, abrasion, thiab tshuaj lom neeg.

Txawm hais tias cov tshuaj silicon carbide uas tau sib txuas ua ke muaj cov yam ntxwv zoo hnav, nws cov ntsiab lus hlau silicon dawb 8-12% txwv tsis pub muaj kev tiv thaiv tshuaj lom neeg. Qhov no ua rau nws tsis haum rau cov kua qaub thiab cov hauv paus muaj zog (pH tsawg dua 4 lossis ntau dua 11). Cov silicon carbide sintered ncaj qha, tseem hu ua cov silicon carbide tus kheej sintered, muaj kev tiv thaiv tshuaj lom neeg zoo dua. Nws yuav luag tag nrho yog silicon carbide, tsis muaj cov hlau silicon dawb. Qhov no ua rau nws tiv taus feem ntau cov tshuaj lom neeg thiab haum rau yuav luag txhua daim ntawv thov foob tshuab, suav nrog cov uas muaj corrosive heev. Tsis tas li ntawd, rau cov kev pabcuam corrosive heev uas tsis muaj hlau muaj kev sib raug zoo tshuaj lom neeg txaus lossis kom tsis txhob muaj tus nqi siab ntawm cov hlau zoo, cov qauv foob uas tsis muaj cov khoom siv hlau ntub dej muaj.

Rau cov kua dej tshwj xeeb uas muaj zog heev xws li hydrofluoric (HF) acid, cov engineers pom zoo kom siv cov khoom sib xyaw ua ke. Cov ntsej muag foob xav tau cov qib carbon uas tiv taus tshuaj lom neeg thiab alpha-sintered silicon carbide. Cov qib carbon tshwj xeeb yuav tsum tau soj ntsuam rau kev sib xws thiab kev ruaj khov vim yog qhov volatility thiab siab ntawm hydrofluoric acid. Perfluoroelastomers yog cov khoom sib khi thib ob uas pom zoo. Cov khoom siv hlau, xws li cov qog thiab cov caj dab, feem ntau siv cov hlau alloy siab nrog kev tiv taus corrosion zoo dua.Monel® Alloy 400tau siv yav dhau los hauv ntau daim ntawv thov HF acid.

Kev Sab Laj Txog Cov Chaw Tsim Khoom Siv Mechanical Seal

Kev sab laj nrog cov chaw tsim khoom siv foob thaum ntxov hauv theem tsim muaj cov txiaj ntsig zoo rau kev ntsuam xyuas kev sib raug zoo ntawm cov kua dej. Txoj hauv kev ua ntej noua rau muaj kev ntseeg siab ntxivKev sab laj thaum ntxov pab kwv yees cov teeb meem ua tsis tiav xws li cov khoom tsis sib xws. Qhov no ua rau muaj cov qauv tsim zoo dua. Nws kuj tseem txhawb kev siv nyiaj kom zoo. Kev daws cov kev pheej hmoo ntsig txog kev sib xws ntawm cov kua dej thaum ntxov txo cov nqi siv tas mus li. Qhov no txo ​​cov nqi siv sijhawm tsis ua haujlwm thiab cov nqi kho.

Cov chaw tsim khoom tuaj yeem muab cov kev daws teeb meem raws li qhov xav tau. Cov qauv tsim tshwj xeeb ua tau raws li cov kev xav tau tshwj xeeb ntawm kev lag luam thiab cov kev xav tau sib xws ntawm cov kua dej. Qhov no txo ​​cov kev pheej hmoo cuam tshuam. Lub tswv yim "thawj zaug-yog" yog ua tau. Kev ua haujlwm tsis tu ncua ua kom ntseeg tau tias thawj qhov kev tsim qauv ua tau raws li cov qauv kev ua tau zoo. Qhov no txo ​​qhov xav tau rau kev rov ua dua kim vim muaj teeb meem sib xws ntawm cov kua dej.

Kev xaiv cov khoom siv cuam tshuam ncaj qha rau kev ua haujlwm ntawm lub foob, kev ntseeg siab, thiab lub neej ntev. Kev sab laj thaum ntxov ua kom cov khoom siv xaiv tau sib xws nrog cov kua dej ua haujlwm. Lawv tiv taus kev xeb, kev yaig, thiab kev tawm tsam tshuaj lom neeg. Qhov kev ntsuam xyuas thaum ntxov no yog qhov tseem ceeb rau cov chaw muaj cov kua dej abrasive, corrosive, lossis kub siab. Nws kuj pab xav txog seb kev hloov pauv ntawm cov khoom siv kua dej vim yog qhov siab thiab kub yuav cuam tshuam li cas rau kev ua tiav ntawm cov khoom siv. Txoj hauv kev ua ntej no, suav nrog kev siv Failure Mode and Effects Analysis (FMEA), tso cai rau kev txheeb xyuas thaum ntxov thiab kev txo qis ntawm qhov ua tsis tiav uas cuam tshuam nrog kev sib raug zoo ntawm cov khoom siv. Qhov no ua rau muaj kev ntseeg siab thiab kev siv nyiaj tsawg dua.

Cov Txheej Txheem Kev Ntsuas Hauv Chaw Kuaj Mob thiab Hauv Tebchaws

Cov txheej txheem kuaj mob hauv chav kuaj thiab hauv daim teb yog qhov tseem ceeb rau kev lees paub qhov sib xws ntawm cov khoom siv foob nrog cov kua dej ua haujlwm. Cov kev xeem no ua kom cov ntaub ntawv xaiv tau tiv taus qhov chaw ua haujlwm. ASTM D471 Txoj Kev Xeem Txheem muab txoj hauv kev teeb tsa. Ua ntej, cov kws tshaj lij npaj cov qauv xeem txheem. Lawv ntsuas qhov loj me, qhov hnyav, thiab qhov nyuaj, sau cov no ua cov khoom pib. Tom ntej no, lawv muab cov qauv tso rau hauv roj kuaj ntawm qhov kub siab tshaj plaws. Qhov kev tso rau hauv no kav ntev rau lub sijhawm tus qauv, feem ntauYam tsawg kawg yog 70 teev, thiab nyiam dua yog 168 teev. Lawv tswj qhov kub kom tsis pub dhau ±2°C. Tom qab muab tso rau hauv dej, cov kws kho tshuab yuav tshem cov qauv kuaj, muab cov roj ntawm qhov chaw kuaj, thiab ntsuas lawv hauv 30 feeb. Lawv sau cov kev hloov pauv ntawm qhov ntim, qhov hnyav hloov pauv, thiab qhov nyuaj hloov pauv. Kev sim xaiv tau suav nrog lub zog tensile thiab elongation. Thaum kawg, lawv txhais cov txiaj ntsig. Qhov no suav nrog kev xam qhov feem pua ​​​​​​ntawm qhov ntim swell, kev ntsuas qhov kev hloov pauv ntawm qhov nyuaj siv Shore A durometer, thiab kev ntsuas qhov xwm txheej ntawm lub cev rau kev tawg, mos, lossis tackiness.

Muaj ib txoj kev sim ua teb yooj yim dua. Txoj kev no xav tau 3-5 lub foob seem ntawm txhua yam khoom, tsawg kawg 500ml ntawm cov roj compressor tiag tiag, qhov chaw cua sov nrog kev tswj qhov kub (qhov cub lossis lub phaj kub), cov thawv iav nrog lub hau, calipers lossis micrometer, thiab Shore A hardness tester. Cov txheej txheem suav nrog kev ntsuas thiab sau cov qhov loj me thiab qhov nyuaj ntawm lub foob pib. Tom qab ntawd, cov kws kho tshuab muab cov foob tso rau hauv cov roj kub rau 168 teev (ib lub lim tiam). Tom qab tshem tawm, lawv so cov foob kom qhuav thiab tam sim ntawd ntsuas qhov loj me thiab qhov nyuaj. Lawv xam qhov feem pua ​​​​​​ntawm kev hloov pauv. Cov qauv lees txais suav nrog qhov ntim o tsawg dua 10%, qhov poob qhov nyuaj tsawg dua 10 Shore A, thiab tsis pom kev tawg, tackiness, lossis mos muag heev.

System Seals tau tsim cov txheej txheem tshiab rau kev sim cov khoom siv thiab kua dej sib xws. Cov txheej txheem no suav nrog ntau yam qauv thiab kev paub dav dav ntawm daim ntawv thov. Lawv qhov kev sim sib xws suav nrog peb lub ntsiab lus tseem ceeb: kev hloov pauv ntawm cov khoom siv kho tshuab yooj yim, kev hloov pauv ntawm cov yam ntxwv thermal, thiab kev ua haujlwm raws li daim ntawv thov. Txhawm rau kom ntseeg tau tias cov kua dej puv thiab ua kom nrawm dua, siv lub sijhawm thiab qhov kub tshwj xeeb. Cov kua dej sib xyaw, xws li glycols lossis emulsions, raug rau qhov kub hauv qab 100 ° C. Cov kua roj feem ntau pom qhov kub siab dua 100 ° C. Kev sim khiav rau2,016 teev (12 lub lim tiam)kom ntseeg tau tias muaj kev puv nkaus. Cov kev ntsuas pib suav nrog qhov ntim swell, qhov hnyav thiab qhov ceev hloov pauv, qhov nyuaj, lub zog tensile, elongation, 100 feem pua ​​​​modulus, kev ua haujlwm ua haujlwm (cheeb tsam hauv qab tensile nkhaus txog li 20 feem pua), teeb tsa compression, thiab kev tiv thaiv kev puas tsuaj. Qhov ntim swell qhia txog kev nqus dej; kev cog lus yog qhov teeb meem ntau dua, txo qhov kev sib khi lub zog. Lwm yam yam ntxwv xws li ntim, tuab, thiab qhov ceev raug saib xyuas los ntsuas qhov kev hloov pauv ntawm cov tshuaj lom neeg laus. Kev hloov pauv khoom siv kho tshuab saib xyuas suav nrog qhov nyuaj, tensile modulus, 100-feem pua ​​​​modulus, lub zog tensile, thiab elongation ntawm tawg. Lub hom phiaj kawg yog los ntsuas qhov muaj peev xwm ntawm elastomer los ua haujlwm ua lub foob hauv nws daim ntawv thov thaum raug rau cov kua ua haujlwm. Kev sim daim ntawv thov yuav tsum tau ua tom qab kev sib raug zoo ntawm lub hauv paus tau tsim. Qhov no suav nrog cov kev ntsuas los ua kom nrawm cov teebmeem ntawm siab, kub, qhov tiav ntawm qhov chaw, thiab kev txav mus los (reciprocating, rotary, swivel).

Cov qauv kev xeem uas twb muaj lawm qhia txog qhov tsis sib xws ntau heev. ASTM D2000 feem ntau siv lub sijhawm raug siab tshaj plaws ntawm 70 teev, txwv tsis pub muaj peev xwm kwv yees mus sij hawm ntev. ASTM D4289, rau cov roj tsheb, pom zoo kom muaj kev hloov pauv tsawg rau kev ntsuam xyuas. ASTM D6546 suav nrog kev ntsuam xyuas cov khoom ntxiv, xws li kev ua haujlwm thiab kev teeb tsa compression, tab sis txwv lub sijhawm xeem rau 1,000 teev. Kev kuaj mob hauv chaw kuaj mob ntawm System Seals tau qhia tias qee qhov kev sib xyaw ua ke ntawm cov kua dej thiab cov khoom siv sib xws ntawm 1,000 teev tau dhau los ua tsis sib xws tom qab 2,000 teev. Ntau cov lus qhia xeem tsis muaj cov lus qhia tsim rau cov ntawv thov static lossis dynamic. Feem ntau cov qauv xeem tsis suav nrog kev hloov pauv ntawm qhov kub thiab txias hloov pauv, uas yog qhov tseem ceeb rau cov ntawv thov kub qis. Qhov no sawv cev rau qhov sib txawv tseem ceeb hauv cov txheej txheem xeem keeb kwm.

Kev Soj Ntsuam Cov Xwm Txheej Ua Haujlwm (Kub, Siab, Ceev)

Qhov kub thiab txias ua haujlwm hnyav heev thiab muaj kev nyuaj siab cuam tshuam rau kev xaiv cov khoom siv Mechanical Seals rau kev sib haum xeeb ntawm cov kua dej. Qhov kub thiab txias siab tuaj yeem ua rau cov khoom elastomeric puas tsuaj. Piv txwv li, cov khoom ethylene propylene puas tsuaj thiab xau dhau300° Fahrenheit (150° C). Qhov kub siab kuj ua rau qee cov hydrocarbons coke. Qhov no cuam tshuam kev txav mus los ntawm cov khoom siv foob. Cov kua dej ua haujlwm tuaj yeem ua pa hla cov ntsej muag foob, ua rau muaj kev tso pa tawm. Txhawm rau daws cov teeb meem no, kev xaiv cov khoom siv suav nrog elastomerics tsim rau cov hydrocarbons tshwj xeeb, qhov kub, thiab cov kua dej ntws. Cov ntsej muag foob tau tsim los rau kev ua kom muaj zog thiab sib xws nrog cov kua dej ua haujlwm. Piv txwv li suav nrog carbon, stainless, ceramic, tungsten, silicon, graphite, thiab nickel variants. Cov hlau tsis tshua muaj zog siv rau cov khoom foob hlau kom txo qis kev nthuav dav thermal uas ua rau muaj kev phom sij rau kev ua haujlwm foob. Inconel thiab Hastelloy yog qhov nyiam rau lawv cov khoom siv thermal tshwj xeeb. Lawv tiv taus qhov kub thiab txias yam tsis muaj kev cuam tshuam rau kev ua haujlwm ntawm cov qauv. Inconel zoo dua hauv kev ruaj khov, tiv taus qhov kub thiab txias.tshaj 1,000°CQhov no ua rau nws tsis tseem ceeb hauv kev lag luam aerospace thiab kev lag luam tshuaj lom neeg. Qhov kub thiab txias heev ua rau cov khoom siv foob puas tsuaj, ua rau puas tsuaj lossis tawg. Qhov no txo ​​cov khoom siv kho tshuab thiab ua rau lub foob tsis ua haujlwm. Kev hloov pauv kub ua rau qhov no hnyav dua los ntawm kev ua rau cov khoom siv qaug zog.

Kev hloov pauv ntawm lub zog ua rau cov foob pob muaj zog dua. Qhov no tiv thaiv kev xau hauv qhov chaw muaj zog siab. Cov foob pob ntsej muag feem ntau siv rau cov tshuab muaj zog siab. Cov foob pob hluav taws xob kuj pab tiv thaiv kev xau. Kev sib haum xeeb ntawm cov tshuaj lom neeg tseem ceeb heev los tiv thaiv kev puas tsuaj ntawm cov khoom siv thiab kev phom sij rau ib puag ncig. Qhov no ua kom lub foob pob tsis raug kev hnav lossis tawg los ntawm kev raug tshuaj lom neeg. Cov elastomers xws li Viton, EPDM, thiab Nitrile raug xaiv raws li lawv qhov kev tiv thaiv rau cov tshuaj lom neeg thiab cov kua dej tshwj xeeb. Viton tiv taus cov roj thiab roj, zoo tagnrho rau kev siv hauv tsheb, thiab feem ntau muaj lub neej ntev tshaj plaws hauv kev raug hydrocarbon. EPDM tiv taus dej thiab pa dej, haum rau HVAC systems. Nitrile muab kev tiv thaiv kev sib txhuam zoo heev tab sis tuaj yeem puas tsuaj thaum raug rau ozone. Kev ua haujlwm ceev kuj tsim cua sov, uas ntxiv rau kev txiav txim siab thermal rau kev xaiv cov khoom siv.

Cov Kev Xyaum Zoo Tshaj Plaws rau Kev Siv Lub Tshuab Seal Ntev

Kev Saib Xyuas thiab Kev Tshuaj Xyuas Tsis Tu Ncua

Kev saib xyuas thiab kev tshuaj xyuas tas li yog qhov tseem ceeb rauua kom lub neej ntev duantawm Cov Khoom Siv Mechanical Seals. Rau cov ntawv thov tseem ceeb, xws li cov khoom siv foob pob, kev coj ua ntawm cov neeg ua haujlwmkev kuaj xyuas txhua hli. Lawv kuj ua qhov kev ntsuam xyuas kev ua tau zoo txhua peb lub hlis. Kev kuaj xyuas txhua xyoo yuav suav nrog kev rhuav tshem ib feem los ntsuam xyuas cov khoom sab hauv. Cov neeg ua haujlwm tau kawm los saib xyuas cov nplaim ntawm lub bellows rau kev xeb, kev tawg qaug zog, kev cuam tshuam ntawm qhov ntev, lossis kev sib sau ua ke ntawm cov khoom txawv teb chaws. Cov chaw soj ntsuam thiab cov kaus mom tshem tau tso cai rau qhov no yam tsis muaj kev rhuav tshem tag nrho lub kaw lus. Kev saib xyuas kev ua tau zoo taug qab cov kev ntsuas xws li tus nqi xau, qhov kub ua haujlwm, cov cim qhia kev co, thiab lub sijhawm teb ntawm actuator. Qhov no tsim cov hauv paus thiab txheeb xyuas cov qauv kev puas tsuaj. Cov txheej txheem kuaj mob siab heev suav nrog borescopes rau kev kuaj xyuas sab hauv thiab cov khoom siv thermal imaging los ntes cov kev hloov pauv ntawm qhov kub thiab txias. Cov cuab yeej ntsuas kev co, cov txheej txheem kuaj xyuas qhov xau, kev ntsuas tuab ultrasonic, thiab kev sim tam sim no eddy kuj tseem ntsuas qhov xwm txheej ntawm lub foob.Kev saib xyuas ua ntejcuam ​​tshuam txog kev saib xyuas qhov xwm txheej tiag tiag thiab kev tshuaj xyuas cov ntaub ntawv. Qhov no kwv yees qhov xav tau kev saib xyuas thiab tiv thaiv lub sijhawm tsis ua haujlwm uas tsis tau xav txog. Cov thev naus laus zis ntsuas thiab saib xyuas, xws li qhov kub thiab txias, siab, kev co, thiab cov sensors xau, taug qab cov xwm txheej ua haujlwm tsis zoo. Cov sensors wireless thiab cov tshuab saib xyuas chaw taws teeb ua rau muaj kev sau cov ntaub ntawv tiag tiag thiab ceeb toom. Cov txheej txheem suav lej, kev saib xyuas qhov sib txawv, thiab cov algorithms kwv yees tshuaj xyuas cov ntaub ntawv no. Cov Tshuab Tswj Xyuas Kev Txij Nkawm Hauv Computer (CMMS) sib xyaw cov ntaub ntawv sau thiab kev tshuaj xyuas rau kev tswj cov sijhawm saib xyuas thiab cov ntaub ntawv keeb kwm.

Cov Tswv Yim Txij Nkawm Ua Ntej

Kev siv cov tswv yim txij nkawm ua ntej nthuav dav heevlub neej ntawm lub foob pob hluav taws xob. Kev tshuaj xyuas tsis tu ncuacuam ​​tshuam nrog kev kuaj xyuas qhov muag kom paub seb puas muaj kev hnav, xau, lossis puas tsuaj. Cov neeg ua haujlwm kuj tseem tshuaj xyuas qhov xwm txheej ntawm lub ntsej muag foob rau kev ntsuas lossis qhov pitting. Kev teeb tsa kom raug ua raws li cov lus qhia ntawm cov chaw tsim khoom. Nws siv cov cuab yeej tsim nyog rau kev teeb tsa kom raug. Kev siv roj nplua nyeem txaus rau lub ntsej muag foob txo qhov kev sib txhuam thiab kev hnav. Cov txheej txheem txias kom raug tiv thaiv kev kub dhau. Kev xaiv foob phim lub foob rau cov xwm txheej ua haujlwm ntawm daim ntawv thov. Nws ua kom cov khoom sib xws nrog cov kua thiab cov yam ntxwv ib puag ncig. Kev saib xyuas kev ua haujlwm taug qab cov cim qhia kev ua haujlwm ntawm lub foob xws li tus nqi xau thiab qhov kub. Qhov no kho cov kev teeb tsa ua haujlwm kom tiv thaiv kev hnav ntau dhau. Kev tswj hwm kev ua qias tuaj tswj hwm ib puag ncig huv si nyob ib puag ncig lub foob. Nws siv cov txheej txheem lim dej los tshem tawm cov khoom me me ntawm cov kua.Tsis txhob khiav qhuavtiv thaiv cov foob kom tsis txhob ua haujlwm yam tsis muaj kua dej txuas ntxiv ntawm cov ntsej muag foob kom txias. Cov neeg saib xyuas qhuav tuaj yeem pab nrog qhov no. Kev zam kev co ntau dhau ua rau cov twj tso kua mis nyob hauv lawv qhov Chaw Ua Haujlwm Zoo Tshaj Plaws (BEP). Qhov no tiv thaiv kev rov ua dua thiab cavitation. Kev daws teeb meem kev puas tsuaj lossis kev tsis sib npaug ntawm lub kaw lus kuj tseem ceeb heev. Kev siv roj nplua nyeem kom raug siv hom roj nplua nyeem kom zoo los tswj cov kua dej txias. Qhov no txo ​​qhov hnav thiab kev sib txhuam. Nws kuj tiv thaiv kev nce kub hauv cov chav foob. Kev teeb tsa kom raug ua kom ntseeg tau tias muaj kev sib phim raug thiab meej thiab qhov tseeb ntawm geometric. Qhov no tiv thaiv kev hnav thiab ua tsis tiav ua ntej.

Kev Kawm Txuas Ntxiv Rau Cov Neeg Ua Haujlwm

Kev cob qhia tas mus li rau cov neeg ua haujlwm yog qhov tseem ceeb rau kev tswj hwm kev ruaj khov ntawm lub foob thiab tiv thaiv cov teeb meem sib xws. Cov kev kawm, xws li "Cov Khoom Siv Kho Tshuab - Kev Tsim Kho thiab Tsim Qauv Webinar, ” suav nrog kev siv cov lus qhia txog kev sib raug zoo ua lub ntsiab lus tseem ceeb. Ib tug kws tshaj lij, Gomez, tau hais txog qhov tseem ceeb ntawm kev cob qhia hauv “kev sib raug zoo ntawm elastomers.” Nws piav qhia txog qhov nws tau pab daws qhov teeb meem ntawm lub foob tsis ua haujlwm ntev ntawm lub chaw ua roj. Nws hais tias, "Ob peb xyoos dhau los, kuv tau ua qee qhov kev cob qhia ntawm lub chaw ua roj, thiab tsuas yog qhia txog kev sib raug zoo ntawm elastomers kuv tau pab daws qee qhov teeb meem ntawm lub foob tsis ua haujlwm ntev. Kuv ntseeg tias kev cob qhia yog lub npe ntawm qhov kev ua si." Lub "Cov Ntiv Tes Lag Luam"" (VS62XX) qhia cov tub ntxhais kawm txog cov hauv paus ntawm ntau hom gaskets, packing, thiab seals. Nws npog "Hom, Cov Khoom Siv thiab Cov Khoom" ntawm seals. Qhov no suav nrog cov yam ntxwv ntawm kev sib raug zoo ntawm cov kua dej uas cuam tshuam rau lawv daim ntawv thov thiab kev ua tau zoo.

Kev Sau Ntawv Txog Kev Ua Haujlwm ntawm Mechanical Seal

Kev sau cov ntaub ntawv txog kev ua haujlwm ntawm lub foob pob hluav taws xob muab kev nkag siab tseem ceeb. Kev coj ua no pab txheeb xyuas thiab daws cov teeb meem sib xws kom zoo. Cov ntaub ntawv sau tiav tso cai rau cov pab pawg kom nkag siab txog cov cwj pwm yav dhau los thiab kwv yees cov teeb meem yav tom ntej. Txoj hauv kev ua ntej no tiv thaiv kev ua tsis tiav uas tsis tau xav txog thiab txo cov sijhawm tsis ua haujlwm kim.

Cov pab pawg yuav tsum tau sau tseg kom zoontau yam ntaub ntawv tseem ceebLawv sau cov ntaub ntawv ua haujlwm tiag tiag. Cov no suav nrog cov nqi ntws, siab, kub, thiab kev siv hluav taws xob. Cov lus sau txog kev hloov pauv ntawm cov lus qhia tsim yog qhov tseem ceeb. Cov ntaub ntawv no qhia txog seb lub foob ua haujlwm li cas hauv qab lub ntiaj teb tiag tiag. Lawv kuj sau cov khoom ua kua. Qhov no suav nrog qhov kub, viscosity, lub ntiajteb txawj nqus tshwj xeeb, thiab cov tshuaj lom neeg. Txhua qhov kev hloov pauv ntawm tus qauv tsim thawj lossis kev hloov kho tsis ntev los no tau sau tseg. Qhov no pab taw qhia qhov kev ntxhov siab ntsig txog kua ntawm lub foob.

Ntxiv mus, cov neeg ua haujlwm sau cov ntaub ntawv txog qhov xwm txheej ntawm lub kaw lus. Qhov no suav nrog cov kav dej, cov kabmob, thiab cov txheej txheem txhawb nqa. Lawv suav nrog txhua yam cim ntawm kev hnav lossis kev puas tsuaj. Qhov no ua kom ntseeg tau tias ib puag ncig txhawb nqa kev ua haujlwm zoo tshaj plaws ntawm lub foob. Kev sau cov qib kev co kuj tseem ceeb. Qhov no suav nrog cov ntaub ntawv keeb kwm thiab tam sim no kev co, qhov chaw ntsuas, thiab ntau zaus. Kev txheeb xyuas cov peev xwm ua rau muaj kev co pab tiv thaiv kev ntxhov siab ntawm lub foob. Kev sau cov ntaub ntawv txog cov xwm txheej sib dhos ntawm cov khoom siv yog lwm kauj ruam tseem ceeb. Kev sib dhos kom raug txo qis kev ntxhov siab ntau dhau ntawm cov ntsej muag foob.

Keeb kwm kev saib xyuas muab cov ntsiab lus tseem ceeb. Cov pab pawg sau thiab tshuaj xyuas cov ntaub ntawv saib xyuas, cov lus txib ua haujlwm, thiab cov ntawv qhia txog kev ua tsis tiav yav dhau los. Qhov no txheeb xyuas cov teeb meem rov tshwm sim lossis cov qauv hloov khoom. Lawv tshuaj xyuas cov txheej txheem txhawb nqa foob. Qhov no suav nrog cov txheej txheem ntxuav, cov txheej txheem dej thaiv, thiab cov voj voog txias. Kev teeb tsa, kev ua haujlwm, thiab kev ntsuas cov cuab yeej kom raug tau txheeb xyuas. Kev ntsuam xyuas ib puag ncig sau cov kub ua haujlwm ib puag ncig, kev ntxhov siab, thiab cov yam ntxwv ntawm cov kua. Kev hloov pauv ntawm cov ntau yam ib txwm tau sau tseg. Thaum kawg, cov pab pawg sau cov txheej txheem pabcuam. Qhov no suav nrog cov txheej txheem txias thiab lubrication, nrog rau cov txheej txheem ntxuav thiab cov txheej txheem dej thaiv. Lawv ua kom muaj kev ntxhov siab, ntws, thiab zoo ntawm cov kua.

Kev sau cov ntaub ntawv kom meej meej ua rau muaj kev paub zoo. Cov ntaub ntawv no txhawb nqa kev txiav txim siab zoo. Nws txhim kho kev ntseeg tau thiab lub neej ntev ntawm cov khoom tseem ceeb no. Qhov kev coj ua no thaum kawg pab txhawb rau kev ua haujlwm zoo thiab kev nyab xeeb.

Tus nqi ntawm kev tsis quav ntsej txog kev sib raug zoo ntawm lub foob pob hluav taws xob

Kev Cuam Tshuam Nyiaj Txiag ntawm Kev Ua Tsis Tau Zoo

Kev tsis quav ntsej txog kev sib raug zoo ntawm cov kua dej rau Mechanical Seals ua rau muaj kev nyuaj siab nyiaj txiag rau cov tuam txhab. Kev ua tsis tiav ntawm lub foob ua rau muaj kev siv nyiaj ntau ntxiv raucov khoom hloov pauvthiab kev ua haujlwm. Cov koom haum ntsib cov nqi kho dua tshiab ntau dua vim yog kev kho ntau zaus thiab kev cuam tshuam thaum muaj xwm txheej ceev. Lub sijhawm tsim khoom poob thaum lub sijhawm kaw tsis tau xav txog kuj ua rau poob nyiaj tau los ntau heev. Cov nqi ncaj qha thiab tsis ncaj qha no cuam tshuam loj heev rau lub tuam txhab txoj kev khwv tau nyiaj thiab cov peev nyiaj ua haujlwm.

Kev puas tsuaj rau lub koob npe nrov thiab kev cuam tshuam rau hom lag luam

Kev tsis sib haum xeeb ntawm cov kua dej tuaj yeem ua rau lub tuam txhab lub koob npe nrov thiab lub koob npe nrov puas tsuaj loj heev. Kev rov qab hu cov khoom, kev tshuaj xyuas tsis zoo, thiab kev poob ntawm kev ntseeg siab ntawm cov neeg siv khoom feem ntau ua raws li cov xwm txheej ntawm kev puas tsuaj ntawm cov khoom lag luam. Cov neeg siv khoom xav tau cov khoom muaj kev nyab xeeb thiab zoo. Txhua qhov kev hloov pauv ntawm qhov kev cia siab no ua rau kev poob qis ntawm kev ntseeg siab rau hom. Piv txwv li, kev tshawb fawb tau qhia tias71% ntawm cov tswv tsiajyuav poob kev ntseeg siab rau lawv lub npe khoom noj tsiaj uas lawv nyiam yog tias lawv tshaj tawm qhov kev hu rov qab. Qhov no qhia txog qhov tseem ceeb ntawm kev tswj hwm kev ncaj ncees ntawm cov khoom kom khaws cia kev ntseeg siab ntawm cov neeg siv khoom.Kev tshuaj xyuas kev pheej hmoo thiab kev ua tsis tiav zoo hauv cov khoom siv kho tshuabyog qhov tseem ceeb rau kev ua haujlwm zoo tshaj plaws. Kev coj ua no ua rau cov khoom muaj kev ntseeg siab, ua tau raws li cov neeg siv khoom xav tau, thiab txo cov nqi, yog li ntawd txhawb nqa lub koob npe nrov los ntawm kev ua kom cov khoom zoo.

Cov Teeb Meem Kev Ua Raws Cai thiab Kev Nplua

Kev tsis quav ntsej txog kev sib raug zoo ntawm cov kua dej kuj ua rau muaj teeb meem loj heev rau kev ua raws li txoj cai thiab kev nplua nyiaj ntau.Cov lag luam raug kev cai lij choj ib puag ncig nruj heevtxog kev tso pa tawm ntawm cov pa phem, cov organic sib xyaw ua ke (VOCs), thiab cov khoom phom sij. Kev ua tsis tau raws li cov cai no tuaj yeem ua rau muaj kev nplua nyiaj ntau thiab raug cai.Cov cai tswjfwm ib puag ncig nruj ntawm CaliforniaPiv txwv li, txwv tsis pub cov kua tshuaj lom lossis cov kua phom sij xau. Txawm tias cov kua dej xau me me hauv California tuaj yeem ua teeb meem vim yog cov cai no. Cov pa phem uas khiav tawm tuaj yeem ua rau muaj kev rau txim los ntawm cov koom haum tswj hwm xws li Cal/OSHA lossis BAAQMD. Cov koom haum ib puag ncig feem ntau yuam kom muaj cov qauv thiab kev coj ua tshwj xeeb los txo qhov kev puas tsuaj rau ib puag ncig.

Kev sib haum xeeb ntawm cov kua dej yog lub hauv paus tseem ceeb ntawm kev ua haujlwm ntawm lub foob pob hluav taws xob thiab kev ua haujlwm ntawm lub kaw lus. Kev muab qhov tseem ceeb rau qhov kev sib haum xeeb no tiv thaiv kev ua tsis tiav uas kim heev, ua kom muaj kev ua haujlwm zoo, thiab txhim kho kev nyab xeeb. Kev xaiv cov khoom siv ua ntej, kev sim ua tib zoo, thiab kev saib xyuas tas mus li yog qhov tseem ceeb rau kev ua tiav mus sij hawm ntev nrog Lub foob pob hluav taws xob. Cov kev coj ua no tiv thaiv kev ua haujlwm thiab ua kom lub kaw lus ntseeg tau zoo dua.

Cov Lus Nug Feem Ntau

Txhais tau li cas rau kev sib raug zoo ntawm cov kua dej rau cov khoom siv kho tshuab?

Kev sib raug zoo ntawm cov kua dej piav qhia txog lub peev xwm ntawm cov khoom siv foob pob hluav taws xob los tiv thaiv kev puas tsuaj thaum nws kov cov kua dej tshwj xeeb. Qhov kev tiv thaiv no tiv thaiv cov khoom tawg, xeb, lossis lwm yam kev tawm tsam tshuaj lom neeg. Nws ua kom lub foob pob hluav taws xob ruaj khov thiab ua haujlwm tau zoo.

Cov kua dej tsis sib xws ua rau lub foob tsis ua haujlwm li cas?

Cov kua dej tsis sib haum ua rau lub foob tsis ua haujlwm los ntawm ntau txoj hauv kev. Lawv tuaj yeem ua rau cov khoom siv puas tsuaj, ua rau o lossis tawg ntawm cov elastomers. Kev tawm tsam tshuaj lom neeg thiab kev yaj ntawm cov khoom ua rau lub cev tsis muaj zog. Kev hnav thiab kev yaig kuj tshwm sim. Kev puas tsuaj ntawm cov khoom foob los ntawm cua sov ua rau lub foob tsis ua haujlwm.

Vim li cas kev xaiv cov khoom siv kom zoo thiaj li tseem ceeb rau kev sib haum xeeb ntawm cov khoom siv foob?

Kev xaiv cov khoom siv kom raug yog qhov tseem ceeb heev vim nws cuam tshuam ncaj qha rau lub neej ua haujlwm ntawm lub foob. Kev xaiv cov khoom siv kom raug ua kom ntseeg tau tias muaj kev tiv thaiv rau cov tshuaj lom neeg thiab lub cev ntawm cov kua dej. Qhov no tiv thaiv kev hnav ua ntej lub sijhawm, kev xeb, thiab kev puas tsuaj loj heev. Nws kuj tseem tswj tau qhov ruaj khov ntawm lub foob.

Cov teeb meem tseem ceeb ntawm kev tsis quav ntsej txog kev sib raug zoo ntawm cov kua dej yog dab tsi?

Yog tias tsis quav ntsej txog kev sib haum xeeb ntawm cov kua dej ua rau muaj kev xau thiab kev poob ntawm cov khoom. Nws txo cov sijhawm ua haujlwm thiab kev tsim khoom ntawm cov khoom siv. Cov tuam txhab ntsib cov nqi kho kom zoo dua. Nws kuj tsim kev phom sij rau kev nyab xeeb thiab kev pheej hmoo ntawm ib puag ncig. Kev ua haujlwm ntawm lub kaw lus thiab kev ntseeg siab tag nrho raug cuam tshuam.