Lub hauv paus twj tso kua mis tsim ib lub tshuab nqus tsev siv ob lub counter-rotating, lobed rotors. Cov rotors ntxiab roj ntawm qhov nkag thiab thauj nws hla lub twj tso kua mis lub tsev yam tsis muaj compression sab hauv. Qhov no txuas mus ntxiv, kev kub ceev ntawm cov roj molecules txo qhov siab, ua tiav lub tshuab nqus tsev qis li 10⁻⁵ mbar nrog kev txhawb nqa kom zoo. Kev lag luam thoob ntiaj teb lub tshuab nqus tsev twj tso kua mis txoj kev loj hlob tsis tu ncua qhia nws qhov tseem ceeb.
Muaj ntau qhov tseem ceeb sectors cia siab rau covRoots nqus tsev vacuum, suav nrog:
• Kev lag luam semiconductor: Rau cov txheej txheem xws li nyias-zaj duab xis deposition thiab etching.
• Kev Lag Luam Tshuaj: Hauv kev siv xws li distillation thiab ziab.
• Pharmaceutical Industry: Rau lub tshuab nqus tsev pom thiab khov-drying.
Sab hauv kev ua haujlwm ntawm lub hauv paus nqus tsev vacuum
Lub hauv paus nqus tsev twj tso kua mis ua haujlwm ntawm lub hauv paus ntsiab lus yooj yim tab sis muaj txiaj ntsig zoo. Nws cov txheej txheem sab hauv txav cov roj los ntawm qhov nkag mus rau qhov hluav taws xob yam tsis muaj compressing hauv lub twj tso kua mis chamber. Cov txheej txheem no tso siab rau synchronized txav ntawm ntau qhov tseem ceeb ua haujlwm hauv kev sib raug zoo zoo.
Plaub-kauj ruam ua haujlwm
Qhov kev tso dej tawm tshwm sim nyob rau hauv ib ntus, plaub-kauj ruam voj voog uas rov ua ntau txhiab zaus hauv ib feeb. Cov rotors niaj hnub tuaj yeem tig ntawm qhov nrawm ntawm 3,000 txog 6,000 RPM. Qhov kev kub ceev no tso cai rau lub twj tso kua mis txav cov pa roj ntau sai heev.
Kev Noj Qab Haus Huv: Raws li ob lub lobed rotors tig mus rau qhov sib txawv, ib lub hnab ntim ntawm qhov chaw qhib ntawm lub twj tso kua mis inlet. Gas los ntawm lub tshuab nqus tsev vacuum ntws mus rau hauv no expanding ntim.
Kev rho tawm: Lub hau ntawm lub rotor lobe hla qhov chaw nres nkoj inlet. Qhov kev ua no ntxiab ib lub ntim ntawm cov pa nruab nrab ntawm lub rotor thiab lub twj tso kua mis lub tsev.
Hloov pauv: Lub hnab ntim cov pa roj yog tom qab ntawd hla mus rau sab hauv ntawm lub tsev mus rau qhov hluav taws xob. Ib qho tseem ceeb feature ntawm lub hauv paus nqus tsev twj tso kua mis yog hais tias nws tsis compress cov pa thaum lub sij hawm hloov. Qhov kev tsis sib cuag, tsis muaj roj ua haujlwm ua rau nws tsis hnov tsw rau me me ntawm cov plua plav lossis dej vapor.
Cov pa tawm: Lub rotor txuas ntxiv tig, nthuav tawm lub hnab ntim roj rau qhov chaw nres nkoj qhov hluav taws xob. Cov roj tom qab ntawd nthuav dav mus rau hauv txoj kab tso pa, qhov twg lub twj tso kua mis rov qab tshem tawm ntawm qhov system. Lub voj voog no rov ua dua, tsis tu ncua txav roj los ntawm lub qhov hluav taws xob mus rau qhov hluav taws xob thiab txo qis qhov system siab.
Lus Cim: Thaum muaj txiaj ntsig zoo rau ntau cov pa roj, lub peev xwm nqus ntawm lub hauv paus twj tso kua mis qis dua rau cov roj teeb zoo li hydrogen thaum piv rau lwm hom twj tso kua mis.
Cov Cheebtsam tseem ceeb thiab lawv cov haujlwm
Qhov kev txhim khu kev qha ntawm Roots twj tso kua mis nyob ntawm ob peb yam tseem ceeb uas tau tsim los nrog kev ua haujlwm siab.
Rotors: Lub twj tso kua mis nta ob qhov sib txuas, lobed rotors (feem ntau zoo li tus duab-yim). Cov duab, lossis profile, ntawm cov lobes ncaj qha cuam tshuam kev ua haujlwm. Cov qauv tsim sib txawv muab kev sib pauv ntawm kev siv ceev thiab kev ua haujlwm. Helical rotors, piv txwv li, pab txo lub siab lub ntsws thiab lub suab nrov ua haujlwm.
| Rotor Profile Hom | Pumping Speed Advantage | Volume siv tus nqi |
|---|---|---|
| Novel elliptical | 1.5 npaug siab dua sab saum toj elliptical | Siab |
| Sab saum toj elliptical | Txuj kev ua tau zoo | Mus txog 55% |
Housing (Casing): Qhov no yog lub cev sab nraud uas kaw cov rotors. Nws yog tsim los tiv thaiv lub siab sib txawv ntawm lub tshuab nqus tsev thiab cov cua. Cov khoom siv rau lub tsev thiab rotors nyob ntawm daim ntawv thov kev thov rau corrosion kuj, lub zog, thiab tus nqi.
| Khoom siv | Qhov Zoo Tshaj Plaws | Cov ntawv thov siv |
|---|---|---|
| Cast Iron | Siab zog, zoo hnav tsis kam, raug nqi zoo. | General industrial, tshuaj, thiab zaub mov ua. |
| Stainless hlau | Zoo heev corrosion kuj, kev tu cev. | Pharmaceutical, semiconductor, thiab cov khoom siv kho mob. |
| Aluminium Alloy | Lub teeb, zoo thermal conductivity. | Aerospace, automotive, thiab portable twj tso kua mis. |
Lub Sijhawm Gears: Nyob sab nraum lub twj tso kua mis, lub sijhawm ua haujlwm yog qhov tseem ceeb. Lawv synchronize ob lub rotors, kom ntseeg tau tias lawv tig nyob rau hauv cov lus qhia sib txawv yam tsis tau kov ib leeg lossis lub tsev. Qhov no synchronization yog qhov tseem ceeb rau lub twj tso kua mis tsis yog kev sib cuag.
Shaft Seals: Cov ntsaws ruaj ruaj tiv thaiv huab cua los ntawm kev nkag mus rau hauv lub tshuab nqus tsev chamber thiab txwv tsis pub cov roj nplua nyeem los ntawm cov txheej txheem. Kev xaiv ntawm lub foob yog nyob ntawm qhov xav tau ntawm lub tshuab nqus tsev thiab daim ntawv thov.
| Hom foob | Mechanism | Zoo tshaj rau |
|---|---|---|
| Labyrinth Foob | Siv txoj kev nyuaj kom nres ntws; tsis muaj kev sib cuag. | High-speed daim ntaub ntawv qhov twg xoom hnav yog xav tau. |
| Mechanical Foob | Siv ob lub ntsej muag zoo nkauj heev, lub caij nplooj ntoos hlav-loaded. | High-pressure, high-temperature, thiab low-kawg xav tau. |
| Magnetic Fluid Foob | Siv cov kua nplaum sib nqus los tsim ib qho kev thaiv zoo meej. | Kev siv lub tshuab nqus tsev siab xav tau xoom xoom. |
Qhov tseem ceeb ntawm Precise Clearances
Lo lus "clearance" yog hais txog qhov me me, xam qhov sib txawv ntawm cov rotors thiab nruab nrab ntawm cov rotors thiab cov vaj tsev. Cov khoob no yog qhov zais cia rau lub twj tso kua mis ua tiav. Lawv tso cai rau cov rotors tig ntawm kev kub ceev yam tsis muaj kev sib txhuam, uas muab ntau yam zoo:
Fast start-up
Kev siv hluav taws xob tsawg
Siab twj tso kua mis ceev
Tsawg khiav lag luam thiab cov nqi tu
Txawm li cas los xij, cov kev tshem tawm no yuav tsum tau tswj kom zoo. Thaum lub sijhawm ua haujlwm, lub twj tso kua mis ua kom sov. Qhov cua sov no ua rau cov khoom siv hlau nthuav dav, cov txheej txheem hu ua thermal expansion. Raws li cov rotors thiab vaj tse nthuav dav, cov clearances ntawm lawv shrinks.
Ceeb Toom: Yog tias qhov kev tshem tawm me me dhau los ntawm kev nthuav dav thermal lossis kev sib dhos tsis raug, cov rotors tuaj yeem sib cuag nrog ib leeg lossis lub tsev. Qhov no ua rau muaj kev sib txhuam, cov khoom puas tsuaj, nce lub cev muaj zog, thiab muaj peev xwm twj tso kua mis. Hloov pauv, kev tshem tawm uas loj dhau tso cai rau cov pa tawm rov qab los ntawm qhov hluav taws xob mus rau qhov nkag, uas ua rau lub twj tso kua mis ua tau zoo heev.
Tsim nyog engineering thiab cov khoom xaiv kom ntseeg tau tias lub hauv paus nqus tsev twj tso kua mis tswj kev pom kev pom zoo thoob plaws nws qhov kev ua haujlwm kub, xa cov kev ua tau zoo thiab ua haujlwm tau zoo.
Txheej Txheem Txheej Txheem: Thaub qab vs. Multi-Stage Pumps
Lub twj tso kua mis hauv paus yog lub zog muaj zog, tab sis nws tsis tuaj yeem ua haujlwm ib leeg. Nws xav tau ib qho kev teeb tsa tshwj xeeb kom ncav cuag nws lub peev xwm. Lub twj tso kua mis txav roj tau zoo tab sis tsis compress nws txaus kom tso tawm ncaj qha rau hauv qhov chaw. Qhov kev txwv no yuav tsum tau siv lub twj tso kua mis rov qab los yog kev npaj ntau theem.
Yog vim li cas lub Backing Pump yog tsim nyog
Lub twj tso kua mis hauv paus xav tau lub twj tso kua mis rov qab los tswj nws cov pa. Lub twj tso kua mis rov qab txuas mus rau qhov hluav taws xob ntawm lub hauv paus twj tso kua mis. Nws yuav siv cov pa xa mus thiab compresses rau atmospheric siab, ua kom tiav cov txheej txheem khiav tawm. Qhov kev koom tes no tso cai rau lub kaw lus kom ua tiav qhov nqus nqus nqus tau zoo. Qhov kev xaiv ntawm lub twj tso kua mis rov qab yog nyob ntawm daim ntawv thov tshwj xeeb thiab qib nqus tsev xav tau.
Koj puas paub? Lub twj tso kua mis rov qab tseem hu ua lub twj tso kua mis thawj zaug vim tias nws ua haujlwm kawg ntawm kev tshem cov pa tawm ntawm qhov system.
Feem ntau hom rov qab twj tso kua mis muaj xws li:
Ob-theem rotary vane twj tso kua mis
Roj-sealed mechanical twj tso kua mis
Ob-theem swb valve mechanical twj
Lub tshuab nqus tsev twj tso kua mis
Multi-Stage Pumps ua haujlwm li cas
Rau cov ntawv thov uas tsis tshua muaj siab, engineers txuas ntau lub twj tso kua mis hauv series. Qhov no tsim ntau theem hauv paus hauv paus Nqus Pump system. Hauv qhov teeb tsa no, qhov hluav taws xob ntawm thawj lub twj tso kua mis pub rau hauv qhov nkag ntawm qhov thib ob, thiab lwm yam. Txhua theem ua tiav txo qis lub siab ntxiv. Lub twj tso kua mis zaum kawg tseem xav tau nyob rau qhov kawg ntawm cov saw hlau kom tso cov pa tawm mus rau qhov chaw.
Cov tshuab muaj zog no tseem ceeb heev rau kev lag luam high-tech thiab xav tau kev lag luam. Cov ntawv thov tseem ceeb suav nrog:
Semiconductor Manufacturing: Rau cov txheej txheem xws li Chemical Vapor Deposition (CVD), Lub cev Vapor Deposition (PVD), thiab etching.
Aerospace: Nyob rau hauv qhov chaw simulation chambers thiab cov khoom kuaj.
Tshiab Zog: Rau kev tsim cov hnub ci vaj huam sib luag thiab roj teeb.
Lub hauv paus nqus tsev twj tso kua mis ua tau zoo nyob rau hauv high-speed gas hloov es tsis nyob rau hauv compression. Nws qhov yooj yim, tsis sib cuag tsim tsim ib qho kev txhawb zog rau kev huv, kev ua haujlwm siab. Tam sim no cov twj tso kua mis tam sim no ua ke nrog lub zog-npaum lub cev muaj zog thiab cov ntse sensors, thawb kev ua haujlwm ntxiv rau kev xav tau kev lag luam uas yuav tsum tau siv lub tshuab nqus tsev ruaj khov thiab ua haujlwm tau zoo.
Post lub sij hawm: Oct-28-2025