Puas yog lub twj tso kua mis centrifugal xav tau qhov zoo li qub thiab muaj zog sib npaug tom qab kho?

Kev saib xyuas lub twj tso kua mis centrifugal muaj ntau dua li hloov cov khoom hnav thiab kho cov khoom siv rau kev ua haujlwm. Qhov sib npaug ntawm kev sib dhos yog qhov tseem ceeb sib npaug rau kev ua haujlwm txhim khu kev qha, tshwj xeeb tshaj yog thaum lub impeller, twj tso kua mis, lossis lwm yam kev sib hloov tau kho lossis hloov.

Lub rotor tsis sib npaug tuaj yeem tsim cov centrifugal quab yuam thiab kev co thaum ua haujlwm. Nyob rau tib lub sijhawm, kev vibration ntau dhau tuaj yeem ua kom cov kabmob hnav, ua rau cov khoom siv puas tsuaj, loosen mounting Cheebtsam, thiab txo cov khoom siv.

Txawm li cas los xij, puas yog txhua lub twj tso kua mis centrifugal kho yuav tsum muaj qhov sib npaug zoo li qub thiab dynamic? Cov lus teb nyob ntawm lub twj tso kua mis tsim, hom kev kho, geometry ntawm cov khoom sib hloov, thiab cov chaw tsim khoom yuav tsum tau ua.

Kev nkag siab txog qhov sib txawv ntawm qhov sib txawv ntawm qhov zoo li qub thiab lub zog sib npaug pab pawg saib xyuas xaiv txoj kev tshuaj xyuas tsim nyog thiab zam kev kho tsis tsim nyog lossis cov cuab yeej ua tsis tiav ntxov.

 

 

1. Vim li cas Rotor Balancing tseem ceeb rau cov twj centrifugal?

Lub twj tso kua mis centrifugal hloov lub zog los ntawm lub zog hloov pauv uas tau tsav los ntawm lub cev muaj zog, lub cav, lossis lwm yam khoom siv hluav taws xob. Rau kev sib dhos ua ke kom ua haujlwm tau zoo, nws qhov kev faib khoom loj yuav tsum nyob twj ywm tsis pub dhau qhov sib npaug sib npaug.

Qhov zoo tshaj plaws, lub rotor qhov loj yuav tsum tau muab faib kom tsim nyog nyob ib ncig ntawm nws cov rotor axis. Yog tias qhov sib faib loj tsis sib npaug, qhov tshwm sim centrifugal rog tuaj yeem tsim kev co thaum lub rotor tig.

Feem ntau ua rau rotor imbalance muaj xws li:

Tsis sib xws impeller hnav, corrosion, los yog yaig.

Cov ntaub ntawv deposits accumulating rau rotating Cheebtsam.

Impeller kho, machining, lossis tshem tawm cov khoom.

Cov khoom siv tsis raug lossis kev sib dhos tsis raug.

Ncej deformation los yog puas qhov chaw nyob.

Hloov qhov chaw nrog qhov loj me lossis kev faib tawm loj.

Hauv multistage centrifugal twj tso kua mis, lub rooj sib dhos yuav muaj xws li lub tog raj kheej, ntau lub impellers, lub tes tsho, spacers, thiab cov khoom sib npaug. Lawv qhov sib xyaw ua ke thiab qhov tseeb ntawm kev sib dhos tuaj yeem cuam tshuam tag nrho rotor tshuav nyiaj li cas.

Kev sib npaug yog li ntawd yog ib qho tseem ceeb ntawm kev tsim cov twj tso kua mis thiab tej zaum kuj yuav tsum tau ua thaum lub sij hawm tu, nyob ntawm seb cov khoom cuam tshuam thiab qhov twg ntawm kev kho.

 

2. Qhov txawv ntawm Static thiab Dynamic Balancing yog dab tsi?

Static balancing thiab dynamic ntsuas qhov chaw nyob muaj feem xyuam tab sis txawv cov ntaub ntawv ntawm rotor imbalance.

2.1 Static Balancing

Static ntsuas ntsuas ntsuas qhov loj ntawm cov khoom siv lossis rotor nyob rau hauv ib qho xwm txheej uas lub ntiajteb txawj nqus tuaj yeem qhia qhov tsis sib xws. Nws yog feem ntau txuam nrog ib leeg-plane ntsuas txoj kev.

Yog tias ib qho khoom muaj qhov tsis sib xws, nws qhov hnyav dua yuav txav mus rau qhov qis tshaj plaws thaum cov khoom siv tau txais kev txhawb nqa ywj pheej ntawm qhov tsim nyog sib npaug.

Kev ntsuas qhov sib npaug tuaj yeem pab txheeb xyuas thiab kho qhov tsis sib xws.

Nws yog feem ntau cuam tshuam rau qhov nqaim, disc-shaped Cheebtsam thaum cov khoom siv geometry thiab cov kev xav tau sib npaug tso cai rau kev ntsuas ib leeg.

Rau cov twj tso kua mis tsim nyog, qhov ntsuas qhov zoo li qub yuav yog ib feem ntawm cov txheej txheem tshuaj xyuas tom qab tsim khoom lossis kho.

Txawm li cas los xij, qhov sib npaug zoo li qub tsis pom txhua yam tsis sib xws. Lub rotor tej zaum yuav tshwm sim statically sib npaug thaum tseem tsim kev co thaum tig.

2.2 Dynamic Ntsuas

Dynamic ntsuas ntsuas ntsuas qhov tsis sib npaug ntawm cov khoom sib hloov lossis sib dhos hauv qab kev sib hloov, siv cov khoom ntsuas tsim nyog.

Tsis zoo li qhov sib npaug zoo li qub, qhov ntsuas qhov sib npaug tuaj yeem txheeb xyuas ob qho tib si qhov tshwm sim tsis muaj zog thiab ob peb tsis sib npaug cuam tshuam nrog kev faib khoom loj raws lub rotor.

Nyob ntawm lub rotor thiab qhov yuav tsum tau ua kom sib npaug, kev kho yuav raug ua nyob rau hauv ib lossis ntau lub dav hlau. Kev ntsuas ob lub dav hlau feem ntau yog siv thaum lub rotor's geometry thiab cov yam ntxwv tsis sib xws xav tau nws.

Dynamic balancing yog tshwj xeeb tshaj yog muaj feem xyuam thaum lub rotating sib dhos muaj xws li ob peb yam khoom faib raws ib tug ncej, raws li feem ntau pom nyob rau hauv multistage centrifugal twj.

Nws pab xyuas seb qhov rotor qhov seem tsis txaus nyob rau hauv cov kev txwv tsis pub dhau ua ntej cov khoom siv rov qab los rau kev pabcuam.

Static vs. Dynamic Balancing

Kev sib piv	Static Balancing	Dynamic ntsuas
Lub hom phiaj tseem ceeb	Ntsuas qhov tsis sib xws ntawm ib lub dav hlau	Txheeb xyuas qhov tsis txaus ntseeg thaum sib hloov, suav nrog ob peb qhov tsis sib xws
Hom kev	Tsim nyog ntsuas fixture lossis static ntsuas tshuab	Dynamic ntsuas tshuab
Kev siv ntau	Tsim nyog nqaim los yog disc-puab Cheebtsam	Cheebtsam lossis cov rooj sibtham xav tau kev sib hloov ntsuas
Kev txwv loj	Tsis tuaj yeem kuaj xyuas txhua qhov kev tsis txaus siab tsis txaus ntseeg	Yuav tsum muaj cov cuab yeej tsim nyog, cov txheej txheem, thiab cov txheej txheem lees paub
Lub luag haujlwm tseem ceeb hauv kev kho lub twj tso kua mis	Component-level kev ntsuam xyuas qhov twg muaj	Cheebtsam lossis rotor-assembly pov thawj, nyob ntawm qhov yuav tsum tau ua

Tsis yog ob txoj kev yuav tsum raug xaiv raws li kev yooj yim ib leeg. Lub rotor's geometry, kev khiav hauj lwm ceev, tsim, thiab yuav tsum tau sib npaug zoo txiav txim seb tus txheej txheem tsim nyog.

 

3. Puas yog txhua qhov kho centrifugal twj xav tau kev sib npaug?

Tsis tas li. Qhov kev xav tau ntawm kev sib npaug yog nyob ntawm qhov tau kho thiab seb qhov haujlwm puas tuaj yeem hloov pauv lub rooj sibtham ntawm kev faib tawm, geometry, lossis kev sib dhos.

3.1 Kev tu txhua hnub yam tsis muaj qhov tseem ceeb rotor ua haujlwm

Kev saib xyuas niaj hnub yuav suav nrog lubrication, kev tshuaj xyuas sab nraud, kev hloov kho foob, lossis lwm yam haujlwm uas tsis cuam tshuam cov khoom sib hloov.

Yog tias lub rotor tseem sib sau ua ke thiab tsis muaj pov thawj ntawm qhov txawv txav los yog kev puas tsuaj, kev ntsuas ntsuas ntsuas tshiab yuav tsis tsim nyog tom qab txhua qhov haujlwm tu.

Pab neeg saib xyuas yuav tsum tseem tshuaj xyuas kev ua haujlwm, cov ntaub ntawv kev vibration uas twb muaj lawm, thiab cov chaw tsim khoom yuav tsum tau ua.

3.2 Impeller Kho lossis Hloov

Cov impellers ncaj qha cuam tshuam rau hydraulic thiab mechanical kev ua tau zoo ntawm lub twj tso kua mis centrifugal.

Kev tshem tawm cov khoom thaum lub sij hawm machining, kho hauv zos, corrosion, yaig, los yog hloov nrog ib tug txawv Cheebtsam yuav hloov lub impeller lub loj faib.

Tom qab kho lub impeller tseem ceeb lossis hloov pauv, ntsuas qhov ntsuas yuav tsum tau ntsuas raws li lub twj tso kua mis tsim cov txheej txheem thiab cov kev qhia tshwj xeeb.

Ib tug neeg impeller tej zaum yuav xav tau static los yog dynamic ntsuas, nyob ntawm nws cov geometry thiab cov kev xav tau. Qhov sib npaug ntawm qhov ua tiav rotor kuj yuav tsum tau kuaj xyuas tom qab sib dhos.

3.3 Pump Shaft Kho lossis Hloov

Lub taub hau taub hau, qhov chaw zaum puas, los yog kho qhov ntev ntawm qhov tsis raug tuaj yeem ua rau muaj teeb meem kev sib tw thiab kev sib tw.

Kev ntsuas ib leeg tsis tuaj yeem kho cov ncej deformation lossis cov khoom tsis haum haum. Cov xwm txheej no yuav tsum tau tshuaj xyuas thiab kho ua ntej.

Yog tias kev kho cov ncej, ncaj, machining, lossis hloov pauv hloov lub rooj sibtham lossis nws qhov kev faib khoom loj, kev ua haujlwm sib npaug yuav tsum tau txiav txim siab los ntawm cov txheej txheem kho thiab kev lees paub.

3.4 Kev Txhim Kho Loj ntawm Multistage Pump

Thaum lub sij hawm overhaul loj, lub rotor tej zaum yuav dismantled, ntxuav, kho, los yog rebuilt nrog hloov cov khoom.

Cov khoom siv tsis raug, kev hloov pauv, kev tso nyiaj, lossis qhov sib txawv ntawm tus kheej tuaj yeem cuam tshuam rau lub rotor sib dhos.

Vim li no, qhov loj rotor overhauls feem ntau yuav tsum tau ua tib zoo xyuas qhov ntsuas thiab yuav xav tau qhov kawg rotor-assembly ntsuas ua ntej kev teeb tsa.

Qhov ntsuas qhov tseeb nyob ntawm qhov tsim lub twj tso kua mis. Lub twj tso kua mis multistage nrog lub rooj sib dhos ntev yuav tsum tsis txhob raug kho tib yam li nqaim, ib-theem impeller.

3.5 Kev Kho Kev Siv Vuam los yog tshem tawm cov khoom tseem ceeb

Vuam, hlau buildup, txhoj puab heev machining, thiab lwm yam kev kho ntau yam yuav hloov lub loj faib los yog qhia geometrical hloov.

Ua ntej ua qhov kev kho zoo li no, pab pawg saib xyuas yuav tsum paub meej tias txoj kev npaj tau pom zoo rau cov khoom siv thiab kev ua haujlwm.

Tom qab kho, cov khoom yuav tsum tau ua raws li qhov tsim nyog qhov ntev, cov qauv, thiab ntsuas ntsuas. Kev tshuaj xyuas ntxiv tuaj yeem xav tau qhov kev kho lossis kev pabcuam xav tau.

 

4. Yuav ua li cas thiaj txiav txim siab txog qhov yuav tsum tau muaj kev sib npaug

Cov lus qhia hauv qab no tuaj yeem pab tsim cov phiaj xwm tshuaj xyuas thawj zaug.

Kho mob	Kev ntsuam xyuas pom zoo
Kev tu niaj hnub tsis muaj rotor disassembly	Tshawb xyuas keeb kwm kev vibration thiab kev saib xyuas; kev sib npaug yuav tsis tsim nyog
Kev tu me me uas tsis muaj cov khoom tseem ceeb poob	Tshawb xyuas qhov xwm txheej thiab txheeb xyuas qhov ntev ntawm qhov muaj feem cuam tshuam
Impeller kho lossis hloov	Ntsuas cov khoom sib npaug thiab seb puas yuav tsum tau sib dhos rotor ntsuas
Hloov ncej los yog kho ncej tseem ceeb	Txheeb xyuas qhov ncaj ncaj, qhov khiav tawm, cov khoom haum, thiab qhov xav tau rotor ntsuas
Ua kom tiav rotor disassembly thiab overhaul	Tshawb xyuas tag nrho cov khoom sib hloov thiab ua raws li cov txheej txheem kawg rotor-balancing
Kev vibration tsis tu ncua tom qab kho	Txheeb xyuas qhov tsis sib xws, kev sib tw, kev sib tw, cov kabmob, xoob, cov teeb meem hydraulic, thiab lwm yam ua ntej txiav txim siab txog kev kho cov haujlwm.

Cov lus no yog cov lus qhia txog kev saib xyuas dav dav, tsis yog hloov pauv rau cov khoom siv tshuaj xyuas thiab kho cov cai.

 

5. Cov txheej txheem ntsuas ntsuas thiab soj ntsuam pom zoo

Txhim khu kev sib npaug yog nyob ntawm kev npaj kom zoo thiab kev txheeb xyuas tsis yog tsuas yog tso cov khoom ntawm lub tshuab ntsuas.

Kauj Ruam 1: Tshawb xyuas cov khoom ua ntej sib npaug

Ntxuav lub rotor thiab tshuaj xyuas cov ncej, impellers, lub tes tsho, thiab lwm yam cuam tshuam rau cov kab nrib pleb, corrosion, yaig, deformation, thiab hnav tsis zoo.

Txheeb xyuas qhov loj me, qhov chaw zaum, thiab cov ncej sib tw tiv thaiv cov duab kos lossis cov kev pabcuam tshwj xeeb.

Kev sib npaug yuav tsum tsis txhob siv los them nyiaj rau qhov puas tsuaj, cov khoom xoob xoob, lossis qhov tsis txaus ntseeg geometrical tsis raug.

Kauj Ruam 2: Txheeb xyuas cov khoom ntawm tus kheej

Yog xav tau, sib npaug cov impellers los yog lwm yam rotating Cheebtsam ntawm tus kheej.

Qhov no yog qhov tseem ceeb tshwj xeeb tshaj yog thaum cov khoom tau hloov pauv, kho, lossis ua haujlwm hauv txoj hauv kev uas tuaj yeem cuam tshuam rau kev faib khoom loj.

Cov txheej txheem ntsuas ntsuas yuav tsum suav nrog cov duab geometry ntawm cov khoom siv thiab txhua qhov cuam tshuam los ntawm kev sib tw lossis mandrel siv thaum kuaj.

Kauj Ruam 3: Sib dhos lub Rotor kom raug

Nruab cov khoom nyob rau hauv qhov tseeb ib ntus thiab kev taw qhia.

Txheeb xyuas qhov haum, axial positioning, clearances, thiab nrhiav qhov chaw. Txheeb xyuas qhov sib sau ua ke thiab concentricity yog tias xav tau.

Rau lub twj tso kua mis multistage, cov txheej txheem sib dhos yuav tsum khaws cov kev sib raug zoo ntawm tus ncej, tus kheej impellers, thiab lwm yam rotor Cheebtsam.

Kauj Ruam 4: Ua qhov kawg ntsuas qhov xav tau

Yog tias qhov kev kho kom zoo hu rau kev sib dhos rotor sib npaug, ua qhov kev sim siv cov khoom siv thiab cov txheej txheem tsim nyog rau lub rotor.

Qhov ntsuas qhov nrawm, kho txoj hauv kev, tus lej ntawm cov dav hlau kho, thiab qhov tso cai tsis txaus ntseeg yuav tsum raug tsim los ntawm cov kev qhia tshwj xeeb.

Tsis txhob siv ib qib sib npaug rau txhua lub twj tso kua mis. Qhov yuav tsum tau muaj kev sib npaug zoo nyob ntawm lub twj tso kua mis tsim, kev ua haujlwm, cov qauv tsim nyog, thiab cov ntawv cog lus lossis cov chaw tsim khoom yuav tsum tau ua.

TS EN ISO 21940-11 Cov txheej txheem thiab kev zam rau rotors nrog tus cwj pwm nruj. Rotors nrog tus cwj pwm hloov pauv tau hais cais los ntawm ISO 21940-12. Tus qauv tsim nyog thiab nws qhov kev siv tau yuav tsum tau lees paub rau cov khoom siv kho.

Kauj Ruam 5: Sau cov txiaj ntsig

Daim ntawv qhia txog kev ntsuas yuav tsum txheeb xyuas cov khoom siv lossis cov khoom sib dhos uas tau sim, cov txheej txheem ua raws, cov qauv kev lees paub, thiab qhov tshwm sim.

Yog xav tau, nws yuav tsum tau sau cov qhab-nees zoo sib npaug, hnub xeem, cov ntsiab lus kho, thiab cov ntaub ntawv tshuaj xyuas cuam tshuam.

Cov ntaub ntawv tso cai rau pab pawg saib xyuas los sib piv cov txiaj ntsig ntawm lub sijhawm thiab muab pov thawj tias cov kev sib hloov rotating ua tau raws li qhov yuav tsum tau ua.

Kauj Ruam 6: Txheeb xyuas lub twj tso kua mis tom qab rov ua dua

Dhau qhov ntsuas ntsuas ntsuas tsis tau lees tias lub twj tso kua mis ntsia yuav ua haujlwm yam tsis muaj kev vibration.

Tom qab kev teeb tsa, xyuas cov kev sib txuas sib txuas, lub hauv paus thiab kev teeb tsa, kev teeb tsa cov kabmob, lubrication, piping loads, thiab qhov chaw ua haujlwm.

Thaum lub sij hawm commissioning, saib xyuas kev vibration, bearing kub, to, thiab cov txheej txheem tsis. Sib piv cov txiaj ntsig nrog cov cuab yeej tsim kev txwv thiab cov ntaub ntawv hauv paus.

Yog tias qhov kev vibration txawv txav tseem nyob, tshawb xyuas qhov laj thawj es tsis xav tias lwm qhov kev ntsuas ntsuas yuav daws tau qhov teeb meem.

 

6. Tej yam yuam kev uas yuav tsum zam

Sib npaug tsuas yog lub impeller thaum lub rotor sib sau ua ke kuj yuav tsum tau ua pov thawj.Ib tug neeg tivthaiv tuaj yeem nyob rau hauv nws tus kheej qhov nyiaj tshuav nyiaj li cas thaum lub rooj sib txoos ua yuam kev lossis kev cuam tshuam ntawm cov khoom cuam tshuam rau lub rotor tiav.

Siv qhov sib npaug los them nyiaj rau lub ntsej muag khoov.Ncej straightness, runout, thiab haum yuav tsum tau kuaj thiab kho raws li qhov tsim nyog ua ntej ntsuas.

Siv tib qhov kev xav tau sib npaug rau txhua lub twj tso kua mis.Cheebtsam geometry, rotor tus cwj pwm, kev khiav hauj lwm ceev, twj tso kua mis tsim, thiab cov specifications muaj feem xyuam rau txoj kev xav tau thiab kam rau ua.

Tshem tawm cov khoom tsis ua raws li kev pom zoo kho.Kev siv tsis raug drilling, sib tsoo, lossis lwm yam khoom siv tshem tawm tuaj yeem ua rau lub cev tsis muaj zog lossis ua kom puas lub hydraulic nto.

Tsis quav ntsej lwm qhov chaw ntawm kev co.Misalignment, bearing defects, looseness, hydraulic instability, cavitation, thiab structural resonance kuj yuav ua rau kev co. Rotor ntsuas qhov chaw nyob tsuas yog qhov cuam tshuam txog qhov tsis sib xws.

 

Xaus

Txawm hais tias lub twj tso kua mis centrifugal yuav tsum muaj qhov ntsuas zoo li qub, ntsuas qhov ntsuas qhov ntsuas, lossis ob qho tib si nyob ntawm cov khoom siv geometry, kho qhov ntsuas, lub twj tso kua mis tsim, thiab cov kev cai siv tau.

Qhov sib npaug zoo li qub yog qhov tseem ceeb rau cov khoom tsim nyog thaum lub dav hlau tsis sib npaug yog qhov cuam tshuam. Dynamic balancing muab kev ntsuam xyuas ua tiav ntau dua thaum tig lub zog thiab ob peb qhov tsis sib xws yuav tsum tau txiav txim siab.

Tom qab kev txhim kho impeller tseem ceeb, hloov ncej, lossis kev kho lub rotor loj, yuav tsum tau tsim cov kev kuaj xyuas nyiaj tshuav yuav tsum tau tsim ua ntej cov khoom siv rov qab los rau kev pabcuam. Rau cov twj tso kua mis multistage, kev tshuaj xyuas qhov ntev, kev sib dhos kom raug, thiab kev txheeb xyuas qhov kawg rotor yog qhov tseem ceeb tshwj xeeb tshaj yog thaum cov chaw tsim khoom tau teev tseg.

Cov txheej txheem kho kom zoo sib xyaw ua ke kev tshuaj xyuas cov khoom, ntsuas qhov tsim nyog, sib dhos kom raug, cov ntaub ntawv xeem tau, thiab kev ua haujlwm pov thawj. Txoj hauv kev no yuav pab txo qis kev vibration ntau dhau, tiv thaiv cov kabmob thiab cov tshuab ntsaws ruaj ruaj, thiab txhim kho kev ntseeg tau ntev ntawm cov twj centrifugal.