Cov Khoom Siv Twj Tso Kua Mis Ua Haujlwm Li Cas?

Cov Khoom Siv Kho Tshuabyog qhov tseem ceeb rau kev ua kom muaj zogTwj Tso Kua Roj Sib Nqus, tiv thaiv kom cov kua dej xau ib ncig ntawm lub twj tso kua mis uas tig. Nkag siab txogTxoj Cai Ua Haujlwm ntawm Mechanical Sealsuav nrog kev lees paub qhovQhov tseem ceeb ntawm O-rings hauv cov foob twj tso kua misrau kev sib khi zoo li qub thiabLub luag haujlwm ntawm cov springs hauv cov khoom siv kho tshuabrau kev sib cuag ntsej muag. Txoj hauv kev no ua kom meej meejYuav ua li cas lub centrifugal twj mechanical seal ua haujlwmXyoo 2024, cov khoom tseem ceeb no tau tsim USD 2,004.26 lab nyiaj hauv kev lag luam.

Cov Ntsiab Lus Tseem Ceeb

• Cov ntsaws ruaj ruajtiv thaiv cov kua dej ntws ncig lub twj tso kua mis lub qhov tig. Lawv siv ob qhov tseem ceeb, ib qho ntsej muag tig thiab ib qho ntsej muag ruaj khov, uas nias ua ke los tsim kom muaj lub foob kaw ruaj khov.
• Muaj ib txheej kua nyias nyias, hu ua daim zaj duab xis hydrodynamic, tsim nyob nruab nrab ntawm cov ntsej muag no. Daim zaj duab xis no ua haujlwm zoo li cov roj nplua nyeem, txo qhov hnav thiab tiv thaiv kom tsis txhob xau, uas pab kom lub foob kav ntev dua.
• Xaiv lub foob pob hluav taws xob zoonyob ntawm seb muaj pes tsawg yam xws li hom kua, siab, thiab qhov ceev. Kev xaiv thiab kev saib xyuas kom zoo pab cov foob ua haujlwm tau zoo thiab txuag tau nyiaj ntawm kev saib xyuas.

Cov Cheebtsam Tseem Ceeb ntawm Cov Khoom Siv Twj Tso Kua Mis

Nkag siab txogib feem ntawm lub tshuab foob pobpab piav qhia txog nws txoj haujlwm tag nrho. Txhua yam khoom ua lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev xau thiab xyuas kom meej tias lub twj tso kua mis ua haujlwm tau zoo.

Lub ntsej muag foob tig tau

Lub ntsej muag foob uas tig tau txuas ncaj qha rau lub twj tso kua mis. Nws tig nrog lub qhov, ua ib nrab ntawm qhov sib txuas tseem ceeb. Cov chaw tsim khoom xaiv cov khoom siv rau cov khoom no raws li cov yam ntxwv ntawm cov kua thiab cov xwm txheej ua haujlwm.

Cov ntaub ntawv siv rau kev tig lub ntsej muag foob suav nrog:

• Cov roj carbon graphite sib xyaw, feem ntau siv los ua cov khoom siv hnav ntsej muag.
• Tungsten carbide, ib lub ntsej muag tawv uas khi nrog cobalt lossis nickel.
• Cov khoom siv ceramic, xws li txhuas oxide, tsim nyog rau cov ntawv thov qis dua.
• Tooj liab, yog ib yam khoom mos dua thiab ua raws li cov qauv uas muaj cov khoom siv lubricating tsawg.
• Ni-Resist, ib qho hlau austenitic uas muaj nickel.
• Stellite®, yog ib hom hlau sib xyaw cobalt-chromium.
• GFPTFE (Iav puv PTFE).

Ob qho tib si qhov tiav ntawm qhov chaw thiab qhov tiaj tiaj yog qhov tseem ceeb rau kev tig lub ntsej muag ntawm lub foob. Qhov tiav ntawm qhov chaw, uas piav qhia txog qhov roughness, yog ntsuas los ntawm 'rms' (root mean square) lossis CLA (center line average). Qhov tiaj tiaj, ntawm qhov tod tes, piav qhia txog qhov chaw tiaj tiaj uas tsis muaj qhov siab lossis qhov nyuaj. Cov kws ua vaj tse feem ntau xa mus rau qhov tiaj tiaj ua qhov nthwv dej hauv cov foob pob hluav taws xob. Lawv feem ntau ntsuas qhov tiaj tiaj siv lub teeb pom kev zoo thiab lub teeb monochromatic, xws li lub teeb helium roj. Lub teeb no tsim cov kab teeb. Txhua lub teeb helium sawv cev rau 0.3 microns (0.0000116 nti) ntawm kev hloov pauv ntawm qhov tiaj tiaj. Tus naj npawb ntawm cov kab teeb pom kev qhia txog qib ntawm qhov tiaj tiaj, nrog rau cov kab tsawg dua qhia txog qhov tiaj tiaj ntau dua.

Nws yuav tsum tau tiaj tiaj ntawm qhov kev txiav txim ntawm lab tus ntawm ib nti ib square inch kom kaw tau.

Rau feem ntau ntawm cov ntawv thov uas muaj kev sib hloov ntawm lub ntsej muag foob, qhov roughness zoo tagnrho ntawm qhov chaw feem ntau yog li ntawm 1 txog 3 microinches (0.025 txog 0.076 micrometers). Qhov kev kam rau siab ntawm qhov tiaj tiaj kuj nruj heev, feem ntau xav tau qhov tseeb hauv ob peb lab ntawm ib nti. Txawm tias qhov me me warping lossis tsis sib xws tuaj yeem ua rau xau. Lub rooj hauv qab no qhia txog qhov yuav tsum tau ua kom tiaj tiaj thiab qhov chaw tiav:

Lub ntsej muag foob ruaj khov

Lub ntsej muag foob ruaj khov tseem nyob ruaj khov rau ntawm lub tsev twj tso kua mis. Nws muab ib nrab ntawm qhov sib txuas tseem ceeb ntawm lub foob. Cov khoom no tsis tig. Nws cov ntaub ntawv yuav tsum muaj qhov tawv thiab tiv taus kev hnav kom tiv taus kev sib cuag tas li nrog lub ntsej muag tig.

Cov ntsej muag foob carbon siv dav dav thiab tuaj yeem ua los ntawm cov hlau sib xyaw rau ntau yam kev sib txhuam. Lawv feem ntau tsis muaj zog tshuaj lom neeg. Tungsten carbide muaj kev tiv thaiv tshuaj lom neeg, tribological, thiab thermal zoo dua li carbon. Silicon carbide tswj tau lub zog ntawm qhov kub siab, muaj kev tiv thaiv corrosion zoo heev, thiab kev nthuav dav thermal qis. Qhov no ua rau nws tsim nyog rau kev siv abrasive, corrosive, thiab kev siv siab. Aluminium oxide, vim nws qhov nyuaj, muab cov yam ntxwv zoo heev.

Nov yog qee cov ntaub ntawv siv ntau thiab lawv cov khoom:

• Tungsten CarbideCov khoom no muaj zog heev. Nws muaj cov khoom me me thiab kev cuam tshuam zoo heev, txawm hais tias nws muaj kev ua tau zoo tribological qis dua li Silicon Carbide. Nws qhov Mohs Hardness yog 9.
• Cov pa roj carbon: Zoo tshaj plaws thaum ua ke nrog cov khoom siv tawv dua, carbon yog qhov zoo rau kev lag luam. Txawm li cas los xij, nws mos thiab tawg yooj yim, ua rau nws tsis haum rau cov xov xwm nrog cov khoom khov kho. Triple Phenolic Resin Impregnated Carbon Graphite muab kev ua haujlwm hnav zoo dua rau cov ntawv thov uas xav tau kev sib txhuam nrog cov roj nplua nyeem lossis cov tshuaj lom neeg hnyav.
• Alumina Ceramic (99.5% purity)Qhov no yog ib qho kev xaiv pheej yig nrog cov tshuaj lom neeg zoo heev thiab kev tiv thaiv kev hnav vim muaj qhov nyuaj siab. Nws qhov Mohs Hardness yog 9-10. Txawm li cas los xij, nws yooj yim tawg lub cev thiab thermal shock. Qhov no ua rau nws tsis haum rau cov xov xwm nrog cov khoom khov, tsis muaj roj nplua nyeem, lossis hloov pauv kub sai.
• Silicon Carbide: Cov khoom siv no suav hais tias yog qhov zoo tshaj plaws thaum muab sib xyaw nrog cov pa roj carbon. Nws yog cov khoom siv foob uas tawv tshaj plaws thiab tiv taus kev hnav tshaj plaws, muab cov peev xwm tshuaj lom neeg zoo heev. Rau cov khoom siv lubricating nrog cov khoom me me, kev sib xyaw ob lub ntsej muag foob Silicon Carbide yog qhov pom zoo. Nws qhov Mohs Hardness yog 9-10.

Cov Khoom Siv Sealing Thib Ob

Cov khoom sib khi thib ob muab kev sib khi zoo li qub ntawm cov khoom sib khi thiab lub tsev twj tso kua mis lossis tus ncej. Lawv kuj tso cai rau kev txav mus los ntawm axial ntawm cov ntsej muag foob. Cov khoom no ua kom muaj kev sib khi zoo txawm tias thaum cov ntsej muag tseem ceeb txav me ntsis.

Ntau hom kev sib khi theem ob muaj xws li:

1. Cov O-rings: Cov no muaj ib lub voj voog ncig. Lawv yooj yim rau nruab, siv tau ntau yam, thiab yog hom feem ntau. O-rings muaj nyob rau hauv ntau yam elastomeric compounds thiab durometers rau ntau yam kub thiab tshuaj lom neeg sib xws.
2. Elastomer los yog thermoplastic bellows: Cov no yog siv rau qhov twg cov ntsaws ruaj ruaj uas txav tau tsis zoo tshaj plaws. Lawv tig mus rau qhov uas cia txav mus los yam tsis txav thiab muaj ntau yam khoom siv sib txawv. Tib neeg kuj paub lawv tias yog 'khau looj'.
3. Cov hlau nplaum (PTFE los yog carbon/graphite)Lub npe rau lawv cov duab txiav, cov wedges yog siv thaum O-rings tsis haum vim yog qhov kub thiab txias lossis tshuaj lom neeg raug. Lawv xav tau lub zog sab nraud tab sis tuaj yeem tsim nyog tus nqi. Cov kev txwv suav nrog qhov muaj peev xwm rau 'dai-up' hauv cov kev pabcuam qias neeg thiab kev ntxhov siab.
4. Cov hlau bellowsCov no siv rau hauv qhov kub siab, nqus tsev, lossis kev siv huv. Lawv yog tsim los ntawm ib daim hlau lossis vuam. Lawv muab ob qho tib si kev sib khi thib ob thiab lub caij nplooj ntoos hlav rau kev txav mus los axial.
5. Cov gasket tiaj tusCov no yog siv rau kev sib khi zoo li qub, xws li kev sib khi lub foob pob hluav taws xob rau lub flange mounting lossis lwm qhov sib txuas zoo li qub hauv kev sib dhos. Lawv tsis muaj peev xwm txav mus los thiab yog cov foob hom compression, feem ntau yog rau kev siv ib zaug xwb.
6. U-khob thiab V-ringsLub npe no yog vim lawv cov ntu hla, cov no yog ua los ntawm cov khoom siv elastomeric lossis thermoplastic. Lawv siv rau hauv qhov kub qis, kev siv siab dua, thiab qhov twg xav tau kev sib raug zoo ntawm cov tshuaj lom neeg.

Qhov sib xws ntawm cov khoom siv rau cov khoom sib khi thib ob yog qhov tseem ceeb heev. Cov kua dej ua rau muaj kev cuam tshuam nrog cov khoom siv foob, ua rau lawv cov qauv molecular tawg. Qhov no ua rau qaug zog, brittleness, lossis mos. Qhov no tuaj yeem ua rau nyias, pitting, lossis tag nrho cov khoom foob, suav nrog cov khoom sib khi thib ob. Rau cov kua dej corrosive heev xws li hydrofluoric (HF) acid, perfluoroelastomers raug pom zoo ua cov khoom sib khi thib ob. Qhov no yog vim qhov xav tau cov khoom siv tiv taus tshuaj lom neeg uas tuaj yeem tiv taus qhov volatility thiab siab ntawm cov tshuaj lom neeg no. Kev tsis sib xws ntawm cov tshuaj ua rau cov khoom puas tsuaj thiab xeb hauv Mechanical Seals, suav nrog cov khoom sib khi thib ob. Qhov no tuaj yeem ua rau cov khoom foob o, ntsws, tawg, lossis xeb. Kev puas tsuaj zoo li no ua rau lub foob puas tsuaj thiab cov khoom siv kho tshuab, ua rau muaj kev xau thiab lub neej ua haujlwm luv dua. Kub siab, lossis cov tshuaj tiv thaiv exothermic los ntawm cov kua dej tsis sib xws, kuj tuaj yeem ua rau cov khoom foob puas tsuaj los ntawm kev tshaj lawv cov kev txwv kub tseem ceeb. Qhov no ua rau poob lub zog thiab kev ncaj ncees. Cov khoom siv tshuaj lom neeg tseem ceeb uas txhais tau tias kev sib xws suav nrog cov kua dej kub ua haujlwm, pH theem, lub siab ntawm lub cev, thiab cov tshuaj lom neeg concentration. Cov yam no txiav txim siab qhov tsis kam ntawm cov khoom siv rau kev puas tsuaj.

Cov Txheej Txheem Caij Nplooj Ntoos Hlav

Cov txheej txheem caij nplooj ntoos hlav siv lub zog tas li thiab sib npaug los ua kom cov ntsej muag foob uas tig thiab ruaj khov sib txuas. Qhov no ua kom lub foob ruaj khov txawm tias cov ntsej muag puas lawm lossis thaum lub siab hloov pauv.

Ntau hom kev siv lub caij nplooj ntoos hlav muaj xws li:

• Lub Caij Nplooj Ntoos Hlav ConicalLub caij nplooj ntoos hlav no zoo li lub khob hliav qab. Nws feem ntau siv rau hauv cov dej ntws los yog cov khoom siv qias neeg vim nws txoj kev tsim qhib, uas tiv thaiv cov khoom me me kom tsis txhob sib sau ua ke. Nws muab kev sib zog sib npaug thiab kev txav mus los du.
• Ib Lub Caij Nplooj Ntoos HlavQhov no yog lub caij nplooj ntoos hlav helical yooj yim. Nws feem ntau yog siv rau hauv cov foob hom pusher rau cov kua huv xws li dej lossis roj. Nws yooj yim rau sib sau ua ke, pheej yig, thiab muab lub zog sib khi tas li.
• Caij Nplooj Ntoos Hlav: Lub caij nplooj ntoos hlav no yog tiaj tus thiab nthwv dej. Nws yog qhov zoo tagnrho rau cov foob me me uas qhov chaw axial tsawg. Nws ua kom muaj kev sib npaug ntawm qhov siab hauv qhov chaw me me, txo qhov ntev ntawm lub foob, thiab txhawb kom muaj kev sib cuag ntawm lub ntsej muag ruaj khov. Qhov no ua rau muaj kev sib txhuam tsawg thiab lub neej foob ntev dua.
• Ntau lub Coil SpringsCov no muaj ntau lub caij nplooj ntoos hlav me me uas teeb tsa ib puag ncig lub ntsej muag ntawm lub foob. Lawv feem ntau pom muaj nyob rau hauvcov khoom siv sib npaugthiab cov twj tso kua dej ceev ceev. Lawv siv lub zog sib npaug los ntawm txhua sab, txo qhov hnav ntawm lub ntsej muag, thiab ua haujlwm tau zoo ntawm lub zog siab lossis RPMs. Lawv muab kev ntseeg siab txawm tias ib lub caij nplooj ntoos hlav tsis ua haujlwm.

Kuj muaj lwm hom tshuab caij nplooj ntoos hlav, xws li cov nplooj ntoos hlav, cov hlau bellows, thiab cov elastomeric bellows.

Gland Phaj Sib Dhos

Lub phaj sib dhos ua haujlwm ua qhov chaw txuas rau lub foob pob hluav taws xob rau lub tsev twj tso kua mis. Nws tuav lub ntsej muag foob ruaj khov rau hauv qhov chaw. Lub rooj sib dhos no ua kom ntseeg tau tias cov khoom foob hauv lub twj tso kua mis sib dhos zoo.

Lub Hauv Paus Ua Haujlwm ntawm Cov Khoom Siv Mechanical

Tsim Cov Khoom Siv Sealing

Cov ntsaws ruaj ruajtiv thaiv cov kua dej xau los ntawm kev tsim kom muaj lub foob sib txuas ntawm lub qhov tig thiab lub tsev ruaj khov. Ob lub ntsej muag uas tau tsim tshwj xeeb, ib qho tig nrog lub qhov thiab lwm qhov txuas rau lub plhaub twj tso kua mis, tsim cov khoom thaiv kev sib khi thawj zaug. Cov ntsej muag no nias rau ib leeg, tsim kom muaj qhov sib txawv nqaim heev. Rau cov foob roj, qhov sib txawv no feem ntau ntsuas 2 txog 4 micrometers (µm). Qhov deb no tuaj yeem hloov pauv raws li qhov siab, kev siv ceev, thiab hom roj kaw. Hauv cov foob tshuab ua haujlwm nrog cov kua dej, qhov sib txawv ntawm cov ntsej muag foob tuaj yeem me me li 0.3 micrometers (µm). Qhov kev sib cais me me no yog qhov tseem ceeb rau kev sib khi zoo. Lub thickness ntawm cov kua dej ntawm cov ntsej muag foob tuaj yeem ntau ntawm ob peb micrometers mus rau ntau pua micrometers, cuam tshuam los ntawm ntau yam kev ua haujlwm. Ib micrometer yog ib lab ntawm ib 'meter' lossis 0.001 hli.

Zaj duab xis Hydrodynamic

Ib txheej kua nyias nyias, hu ua zaj duab xis hydrodynamic, tsim ntawm cov ntsej muag foob uas tig thiab ruaj khov. Zaj duab xis no yog qhov tseem ceeb rau kev ua haujlwm ntawm lub foob thiab lub neej ntev. Nws ua haujlwm ua lub roj nplua nyeem, txo qhov sib txhuam thiab kev hnav ntawm cov ntsej muag foob. Zaj duab xis kuj ua haujlwm ua lub thaiv, tiv thaiv cov kua xau. Zaj duab xis hydrodynamic no ua tiav qhov kev txhawb nqa hydrodynamic siab tshaj plaws, uas ua rau lub neej foob ntawm lub ntsej muag tshuab ntev dua los ntawm kev txo qhov hnav. Qhov sib txawv ntawm ib sab ntawm ib sab tuaj yeem ua rau hydrodynamic lubrication.

Cov zaj duab xis hydrodynamic muaj cov zaj duab xis tawv dua thiab ua rau muaj qhov xau qis dua piv rau ntau cov qauv hydrostatic. Nws kuj qhia txog qhov ceev qis dua (lossis tig mus). Cov grooves nquag twj cov kua dej rau hauv qhov interface, tsim kom muaj lub siab hydrodynamic. Lub siab no txhawb nqa lub nra thiab txo qhov kev sib cuag ncaj qha. Cov grooves diffuser tuaj yeem ua tiav lub zog qhib siab dua rau tib qhov xau piv rau cov grooves sib npaug tiaj tiaj.

Cov txheej txheem lubrication sib txawv piav qhia txog tus cwj pwm ntawm zaj duab xis:

Qhov viscosity ntawm cov kua dej ua lub luag haujlwm tseem ceeb hauv kev tsim thiab kev ruaj khov ntawm cov zaj duab xis no. Ib txoj kev tshawb fawb txog cov zaj duab xis kua nyias, viscous, Newtonian tau qhia tias qhov viscosity khib qhia cov lus tshiab rau hauv qhov siab gradient ntawm qhov ntws. Qhov no hloov pauv qhov sib npaug ntawm kev hloov pauv tsis linear rau qhov tuab ntawm zaj duab xis. Kev tshuaj xyuas linear qhia tau hais tias qhov viscosity khib ib txwm ua rau muaj kev ruaj khov ntawm qhov chaw ntws. Kev txav ntawm lub phaj ntsug kuj cuam tshuam rau kev ruaj khov; kev txav mus rau hauv qab ua rau muaj kev ruaj khov, thaum kev txav mus rau saum toj txo nws. Cov kev daws teeb meem lej ntxiv qhia txog lub luag haujlwm ntawm qhov viscosity khib hauv cov zaj duab xis nyias nyob rau hauv ntau yam kev txav ntawm lub phaj hauv cov chaw ib puag ncig isothermal, qhia meej meej nws qhov cuam tshuam rau kev ruaj khov ntawm kev ntws.

Cov Zog Uas Cuam Tshuam Rau Cov Khoom Siv Mechanical Seals

Muaj ntau lub zog ua rau ntawm lub ntsej muag foob thaum lub twj tso kua mis ua haujlwm, kom ntseeg tau tias lawv tseem sib txuas thiab tswj tau qhov thaiv kev sib khi. Cov zog no suav nrog lub zog tshuab thiab lub zog hydraulic. Lub zog tshuab siv los ntawm cov springs, bellows, lossis lwm yam khoom siv tshuab. Nws tswj kev sib txuas ntawm cov ntsej muag foob. Lub zog hydraulic tsim los ntawm cov kua dej siab. Lub zog no thawb lub ntsej muag foob ua ke, ua kom cov nyhuv sealing zoo dua. Kev sib xyaw ua ke ntawm cov zog no tsim kom muaj lub cev sib npaug uas tso cai rau lub foob ua haujlwm tau zoo.

Kev Siv Lubrication thiab Kev Tswj Kub rau Cov Seal Mechanical

Kev siv roj kom raugthiab kev tswj cua sov zoo yog qhov tseem ceeb rau kev ua haujlwm txhim khu kev qha thiab lub neej ntev ntawm cov foob pob hluav taws xob. Cov zaj duab xis hydrodynamic muab lubrication, txo qhov kev sib txhuam thiab kev hnav. Txawm li cas los xij, kev sib txhuam tseem tsim cua sov ntawm qhov sib txuas sealing. Rau cov foob pob hluav taws xob, cov nqi cua sov flux feem ntau yog txij li 10-100 kW / m². Rau cov ntawv thov kev ua haujlwm siab, cov nqi cua sov flux tuaj yeem siab txog 1000 kW / m².

Kev tsim cua sov raws li kev sib txhuam yog qhov chaw tseem ceeb. Nws tshwm sim ntawm qhov chaw sib khi. Tus nqi tsim cua sov (Q) xam raws li μ × N × V × A (qhov twg μ yog tus coefficient sib txhuam, N yog lub zog ib txwm, V yog qhov ceev, thiab A yog thaj chaw sib cuag). Cov cua sov tsim tawm faib ntawm cov ntsej muag tig thiab ruaj khov raws li lawv cov khoom thermal. Viscous shear cua sov kuj tsim cua sov. Lub tshuab no cuam tshuam nrog kev ntxhov siab shear hauv cov kua nyias nyias. Nws xam raws li Q = τ × γ × V (kev ntxhov siab shear × tus nqi shear × ntim) thiab dhau los ua qhov tseem ceeb hauv cov kua viscosity siab lossis cov ntawv thov ceev ceev.

Kev sib npaug zoo tshaj plaws yog qhov tseem ceeb rau kev tsim qauv kom txo qis kev tsim cua sov thaum qhov ceev ntawm lub qhov nce ntxiv. Ib txoj kev tshawb fawb txog cov foob pob hluav taws xob tau qhia tias kev sib xyaw ua ke ntawm qhov sib npaug thiab lub zog ntawm cov pa dej cuam tshuam rau qhov hnav thiab kev poob ntawm kev sib txhuam. Tshwj xeeb, nyob rau hauv cov xwm txheej ntawm qhov sib npaug siab dua, qhov sib txhuam ntawm lub ntsej muag foob yog sib npaug ncaj qha rau qhov siab ntawm cov pa dej. Kev tshawb fawb kuj pom tias kev txo qis ntawm qhov sib txhuam thiab qhov hnav tuaj yeem ua tiav nrog qhov sib npaug qis.

Hom thiab Kev Xaiv Cov Khoom Siv Mechanical Seals

Cov Hom Phiaj Xwm Mechanical Seals

Cov foob pob hluav taws xob muaj ntau yam qauv tsim, txhua tus haum rau cov ntawv thov tshwj xeeb.Cov ntsaws ruaj ruajsiv elastomer O-rings uas txav mus raws tus ncej kom tswj tau kev sib cuag. Qhov sib txawv,cov foob tsis thawbsiv cov elastomer lossis cov hlau bellows, uas deform es tsis txav. Qhov kev tsim no ua rau cov foob tsis thawb zoo tagnrho rau cov kua dej kub lossis cov kua dej kub, nrog rau cov chaw corrosive lossis kub siab, feem ntau qhia txog kev hnav qis dua.

Lwm qhov sib txawv yog nyob nruab nrab ntawmcov foob pob hluav tawsthiabcov khoom sib xyaw ua ke. Lub foob pob hluav taws xob yog ib chav tsev uas tau sib sau ua ke ua ntej, muaj txhua yam khoom foob hauv ib lub tsev. Qhov kev tsim no ua rau kev teeb tsa yooj yim dua thiab txo qhov kev pheej hmoo ntawm qhov yuam kev. Txawm li cas los xij, cov foob pob hluav taws xob muaj cov khoom sib sau ua ke hauv thaj teb, uas tuaj yeem ua rau kev teeb tsa nyuaj dua thiab muaj kev pheej hmoo ntawm qhov yuam kev ntau dua. Txawm hais tias cov foob pob hluav taws xob muaj tus nqi siab dua, lawv feem ntau ua rau kev saib xyuas qis dua thiab txo lub sijhawm tsis ua haujlwm.

Cov ntsaws ruaj ruaj kuj raug faib ua qhov sib npaug lossis tsis sib npaug. Cov ntsaws ruaj ruaj sib npaug tswj hwm qhov sib txawv siab dua thiab tswj hwm qhov chaw ruaj khov ntawm lub ntsej muag ntsaws ruaj khov, ua rau lawv haum rau cov ntawv thov tseem ceeb thiab cov khoom siv ceev ceev. Lawv muab kev siv hluav taws xob zoo dua thiab lub neej ntev ntawm cov khoom siv. Cov ntsaws ruaj ruaj tsis sib npaug muaj tus qauv yooj yim dua thiab pheej yig dua. Lawv yog qhov kev xaiv zoo rau cov ntawv thov uas tsis tas yuav siv ntau xws li cov twj tso kua dej thiab HVAC systems, qhov twg kev ntseeg tau yog qhov tseem ceeb tab sis qhov siab siab tsis yog qhov txhawj xeeb.

Cov Yam Tseem Ceeb Rau Kev Xaiv Cov Khoom Siv Mechanical Seals

Kev xaiv lub foob pob kom raug yuav tsum tau xav txog ntau yam tseem ceeb.daim ntawv thovnws tus kheej hais kom muaj ntau txoj kev xaiv, suav nrog kev teeb tsa khoom siv thiab cov txheej txheem ua haujlwm. Piv txwv li, kev ua haujlwm tas mus li ANSI cov twj tso kua mis txawv ntawm cov twj tso kua mis pabcuam tsis tu ncua, txawm tias muaj tib cov kua.

Xov xwmhais txog cov kua dej uas sib cuag nrog lub foob. Cov kws ua haujlwm yuav tsum soj ntsuam cov khoom xyaw thiab qhov xwm txheej ntawm cov kua dej. Lawv nug seb cov dej ntws puas muaj cov khoom khov lossis cov khoom ua qias tuaj xws li H2S lossis chlorides. Lawv kuj xav txog qhov concentration ntawm cov khoom yog tias nws yog cov kua, thiab yog tias nws khov rau hauv txhua qhov xwm txheej uas ntsib. Rau cov khoom phom sij lossis cov uas tsis muaj lubrication tsim nyog, flushes sab nraud lossis ob lub foob siab feem ntau yog qhov tsim nyog.

Siabthiabqhov ceevyog ob qho kev ua haujlwm tseem ceeb. Lub siab hauv lub chamber kaw yuav tsum tsis pub tshaj qhov txwv siab static ntawm lub foob. Nws kuj tseem cuam tshuam rau qhov txwv dynamic (PV) raws li cov ntaub ntawv foob thiab cov khoom kua. Qhov ceev cuam tshuam rau kev ua haujlwm ntawm lub foob, tshwj xeeb tshaj yog thaum kub heev. Qhov ceev siab ua rau muaj zog centrifugal ntawm cov caij nplooj ntoos hlav, nyiam cov qauv tsim caij nplooj ntoos hlav ruaj khov.

Cov yam ntxwv ntawm cov kua, qhov kub ua haujlwm, thiab qhov siab cuam tshuam ncaj qha rau kev xaiv lub foob. Cov kua ua rau lub ntsej muag foob hnav, thaum cov kua ua rau cov khoom siv foob puas tsuaj. Qhov kub siab ua rau cov khoom siv nthuav dav, uas ua rau xau. Qhov kub qis ua rau cov khoom siv tawg yooj yim. Qhov siab siab ua rau muaj kev ntxhov siab ntxiv rau ntawm lub ntsej muag foob, ua rau yuav tsum tsim lub foob ruaj khov.

Cov ntawv thov ntawm cov khoom siv sib nqus

Cov foob pob hluav taws xob pom muaj kev siv dav dav thoob plaws ntau yam lag luam vim lawv lub luag haujlwm tseem ceeb hauv kev tiv thaiv kev xau thiab ua kom muaj kev ua haujlwm zoo.

In kev rho tawm roj thiab roj av, cov foob tseem ceeb heev rau cov twj tso kua dej uas ua haujlwm hauv qab qhov xwm txheej hnyav. Lawv tiv thaiv kev xau hydrocarbon, ua kom muaj kev nyab xeeb thiab kev ua raws li ib puag ncig. Cov foob tshwj xeeb hauv cov twj tso kua dej hauv qab dej hiav txwv tiv taus qhov siab siab thiab dej hiav txwv corrosive, txo qhov kev pheej hmoo ib puag ncig thiab lub sijhawm tsis ua haujlwm.

Kev ua tshuaj lom neeg thiab kev khaws ciavam khom cov foob kom tiv thaiv kev xau ntawm cov tshuaj lom neeg thiab cov khoom xeb. Cov kev xau no tuaj yeem ua rau muaj kev phom sij rau kev nyab xeeb lossis kev poob khoom. Cov foob siab heev uas ua los ntawm cov khoom siv tiv taus xeb xws li ceramic lossis carbon yog qhov tshwm sim ntau hauv cov reactors thiab cov tank cia khoom. Lawv ua rau lub neej ntawm cov khoom siv ntev dua thiab tswj cov khoom kom huv.

Kev kho dej thiab dej khib nyiabCov chaw siv cov foob hauv cov twj tso kua mis thiab cov khoom sib tov kom muaj dej thiab tshuaj lom neeg. Cov foob no yog tsim los rau kev ua haujlwm tas mus li thiab tiv taus biofouling. Hauv cov chaw lim dej ntsev, cov foob yuav tsum tiv taus qhov siab siab thiab cov xwm txheej ntsev, qhov tseem ceeb tshaj plaws yog qhov ruaj khov rau kev ua haujlwm ntseeg tau thiab kev ua raws li ib puag ncig.

Cov kua nplaum uas muaj zog thiab cov kua uas muaj zog ua rau muaj teeb meem tshwj xeeb. Cov khoom me me uas muaj zog ua rau cov nplaim sealing hnav sai dua. Cov tshuaj lom neeg ntawm qee cov kua ua rau cov khoom siv foob puas tsuaj. Cov kev daws teeb meem suav nrog cov elastomers siab heev thiab cov thermoplastics uas tiv taus tshuaj lom neeg zoo dua. Lawv kuj suav nrog cov yam ntxwv tiv thaiv xws li cov kab ke tiv thaiv kua lossis kev tswj hwm ib puag ncig.

Cov Seal Mechanical tiv thaiv kev xau los ntawm kev tsim ib qho kev thaiv dynamic ntawm cov ntsej muag tig thiab cov ntsej muag ruaj khov. Lawv muab kev txuag nyiaj ntau rau kev txij nkawm thiab ua kom cov khoom siv siv tau ntev. Kev xaiv thiab kev txij nkawm kom zoo ua kom lawv siv tau ntev, feem ntau tshaj peb xyoos, ua rau lub twj tso kua mis ua haujlwm tau zoo.

Cov Lus Nug Feem Ntau

Lub luag haujlwm tseem ceeb ntawm lub tshuab foob pob yog dab tsi?

Cov ntsaws ruaj ruajtiv thaiv kom cov kua dej ntws ncig lub twj tso kua mis lub qhov tig. Lawv tsim ib qho kev thaiv dynamic, kom ntseeg tau tias lub twj tso kua mis ua haujlwm tau zoo thiab muaj kev nyab xeeb.

Cov khoom tseem ceeb ntawm lub tshuab foob pob yog dab tsi?

Cov khoom tseem ceeb suav nrog lub ntsej muag foob tig thiab ruaj khov, cov khoom sib khi thib ob,cov txheej txheem caij nplooj ntoos hlav, thiab lub rooj sib dhos ntawm lub phaj gland. Txhua lub Cheebtsam ua haujlwm tseem ceeb heev.

Vim li cas zaj duab xis hydrodynamic thiaj tseem ceeb hauv cov khoom siv kho tshuab?

Cov zaj duab xis hydrodynamic ua rau lub ntsej muag ntawm lub foob ntub, uas txo qhov kev sib txhuam thiab kev hnav. Nws kuj ua haujlwm ua ib qho thaiv, tiv thaiv cov kua dej xau thiab ua kom lub foob ntev dua.