Centrifugal Pump Installation Guide: Yuav ua li cas rau nruab lub twj tso kua mis kom zoo kom tsis txhob muaj kev sib cais?

Kev txhim kho kom zoo yog ib qho tseem ceeb tshaj plaws cuam tshuam rau kev ua haujlwm, kev ntseeg siab, thiab kev pabcuam lub neej ntawm lub twj tso kua mis centrifugal.
Txawm tias lub qhov dej -tsim thiab siab- lub twj tso kua mis zoo tuaj yeem ua rau muaj kev vibration ntau dhau, cov khoom siv foob foob, kev puas tsuaj, kev sib txuas tsis ua haujlwm, lossis txo qhov kev ua haujlwm hydraulic yog tias lub twj tso kua mis raug teeb tsa tsis raug.

Kev sib cais ntawm kev vibration yog ib qho tseem ceeb, tab sis nws yuav tsum tsis txhob suav tias yog ib qho kev daws teeb meem ywj pheej. Kev txhim kho twj tso kua mis yog nyob ntawm tag nrho cov txheej txheem kev teeb tsa, suav nrog lub hauv paus, lub hauv paus, kev sib dhos, cov kav dej, kev txhawb nqa, li qub, kev sib txuas yooj yim, thiab kev ua haujlwm.

Phau ntawv qhia no piav qhia txog cov ntsiab cai tseem ceeb ntawm kev teeb tsa centrifugal twj tso kua mis thiab muab cov lus pom zoo rau kev npaj lub hauv paus, kev sib txuas ntawm cov ncej, kev sib cais ntawm kev vibration, piping installation, commissioning, thiab kev daws teeb meem.

 

 

1. Vim li cas kev txhim kho twj tso kua mis yog qhov tseem ceeb?

Lub twj tso kua mis centrifugal yog lub tshuab rotating uas tsim cov hydraulic thiab mechanical rog thaum ua haujlwm. Cov rog no yuav tsum raug xa mus rau lub hauv paus thiab ib puag ncig.

Kev teeb tsa tsis zoo tuaj yeem ua rau:

Kev vibration thiab suab nrov heev

Cov kabmob overheating lossis ua tsis tiav ntxov

Mechanical seal leakage

Coupling hnav

Ncej misalignment

Txo cov twj tso kua mis efficiency

Shortened khoom siv lub neej

Vim li no, lub twj tso kua mis installation yuav tsum raug suav hais tias yog ib qho kev sib koom ua ke nrog covtwj tso kua mis, lub cev muaj zog, baseplate, foundation, piping, kev txhawb nqa, thiab kev co cais qhov system.

 

2. Npaj lub twj tso kua mis

Lub hauv paus muaj zog thiab ruaj khov yog thawj kauj ruam mus rau kev lag luam twj tso kua mis txhim khu kev qha.

Lub hauv paus yuav tsum tau tsim los pab txhawb lub twj tso kua mis thiab lub cev muaj zog sib dhos thaum tiv thaiv kev khiav haujlwm thiab kev co.

Ua ntej installation, kos:

Foundation qhov ntev thiab lub zog

Anchor bolt qhov chaw

Mounting nto mob

Kev them nyiaj yug Baseplate

Levelness ntawm lub hauv paus

Qhov chaw yuav tsum tau ua haujlwm thiab kho

Lub hauv paus nto yuav tsum huv si, ruaj khov, thiab tsis muaj cov khoom xoob.

Rau kev lag luam loj centrifugal twj tso kua mis, ib tug kom zoo ntsia thiab grouted baseplate muab ntxiv rigidity thiab pab tswj kev sib raug zoo thaum lub sij hawm ua hauj lwm.

Cov grouting tsis zoo lossis lub hauv paus tsis sib xws tuaj yeem ua rau lub hauv paus deformation thiab ua rau muaj teeb meem kev co.

 

3. Kho Baseplate Installation thiab Grouting

Rau ntau cov kab rov tav centrifugal twj tso kua mis, lub twj tso kua mis thiab lub cev muaj zog yog mounted rau ntawm ib tug ntau baseplate.

Ib tug txheej txheem installation yog:

Kev tshuaj xyuas hauv paus → Baseplate positioning → Leveling → Initial alignment → Grouting → Final alignment → Piping connection → Final inspection

Lub hauv paus phaj yuav tsum tau muab faib kom zoo thiab ruaj ntseg txhawb nqa ua ntej grouting.

Grouting yuav tsum sau qhov chaw tsim hauv qab lub hauv paus thiab muab kev txhawb nqa tas mus li yam tsis muaj qhov tseem ceeb.

Tom qab lub grout tau kho lawm, thauj tog rau nkoj bolts yuav tsum tau nruj raws li cov chaw tsim tshuaj paus cov lus qhia, ua raws li los ntawm ib tug zaum kawg alignment check.

Rau cov twj loj, qhov raug grouting yog qhov tseem ceeb tshwj xeeb vim tias lub hauv paus tsis ruaj khov tuaj yeem cuam tshuam ncaj qha rau kev sib dhos thiab kev co.

 

4. Pump thiab Motor Alignment

Lub twj tso kua mis kom raug- kev sib dhos lub cev muaj zog yog ib qho tseem ceeb tshaj plaws rau kev txhim kho cov khoom siv tig.

Ob hom ntawm ncej misalignment yog:

Parallel los yog offset misalignment

Angular misalignment

Misalignment tuaj yeem tsim muaj zog ntxiv hauv kev sib txuas thiab sib dhos, ua rau:

Ua kom muaj kev vibration

Cov kabmob hnav

Mechanical foob tsis ua haujlwm

Coupling puas

Kev siv hluav taws xob ntau ntxiv

Ua ntej kev sib tw zaum kawg, tus installer yuav tsum tau kuaj xyuasmuag ko taw, uas tshwm sim thaum ib lossis ntau lub cev muaj zog taw tsis zaum kom raug ntawm lub hauv paus.

Cov cuab yeej laser alignment tuaj yeem siv rau qhov kev sib raug zoo, tshwj xeeb tshaj yog rau siab -ceev lossis tseem ceeb - daim ntawv thov.

Qhov kev tso cai sib haum xeeb yuav tsum ua raws li lub twj tso kua mis thiab cov chaw tsim khoom sib txuas ua ke es tsis siv ib qho txiaj ntsig thoob ntiaj teb rau txhua lub twj tso kua mis.

 

5. Xyuas Alignment dua tom qab Piping Installation

Lub twj tso kua mis tuaj yeem raug kho kom raug ua ntej cov kav dej raug teeb tsa thiab ua tsis zoo tom qab.

Qhov no feem ntau tshwm sim los ntawm sab nraud quab yuam los ntawm cov kav dej txuas nrog.

Piping tuaj yeem qhia:

Vertical loads

Kab rov tav rog

Thermal expansion rog

Twisting rog

Nozzle loads

Yog li ntawd, cov txheej txheem raug yog:

Initial alignment → Pipe installation → Pipe support → Final alignment check

Cov kav dej yuav tsum tau ua raws li lub twj tso kua mis es tsis txhob yuam lub twj tso kua mis kom phim cov kav dej tsis raug.

Tsis txhob siv lub twj tso kua mis flange los rub cov yeeb nkab rau hauv txoj haujlwm. Qhov no tuaj yeem ua rau muaj kev ntxhov siab ntau dhau ntawm cov casing thiab nozzles thiab tuaj yeem cuam tshuam rau kev sib dhos ntawm cov ncej.

 

6. Txhim kho cov kav dej kom zoo

Kev nqus sab ntawm lub twj tso kua mis centrifugal yuav tsum tau saib xyuas tshwj xeeb vim tias cov dej nqus tsis zoo tuaj yeem ua rau cavitation thiab tsis ruaj khov.

Cov kav dej nqus dej yuav tsum muab cov kua dej ntws zoo sib xws nrog qhov tsawg kawg nkaus poob.

Cov ntsiab lus tseem ceeb suav nrog:

Khaws cov kab suction ncaj qha raws li qhov ua tau zoo

Lub luj tshib tsis tsim nyog thiab fittings ze ntawm lub twj tso kua mis tuaj yeem ua rau muaj kev kub ntxhov thiab kev poob hydraulic.

Tsis txhob muaj lub hnab ntim cua

Kev npaj cov kav dej yuav tsum tiv thaiv qhov chaw uas huab cua tuaj yeem sib sau.

Muab cov yeeb nkab ywj siab txhawb nqa

Lub tshuab nqus tsev yuav tsum tsis txhob hloov nws qhov hnyav mus rau lub twj tso kua mis nozzle.

Tsawg kawg nkaus suction poob

Kev nqus dej ntau dhau txo qhov muaj NPSH thiab tuaj yeem ua rau muaj kev pheej hmoo ntawm cavitation.

Rau cov ntawv thov tseem ceeb, kev sib txuas cov kav dej yuav tsum tau soj ntsuam ua ke nrog NPSH cov cai thiab cov twj tso kua mis nkhaus.

 

7. Txhim kho cov kav dej kom raug

Cov kav dej tso tawm kuj yuav tsum tau ua kom zoo thiab txhawb nws tus kheej.

Ib qho kev tso tawm ib txwm muaj xws li daim tshev valve, cais lub valve, ntsuas qhov siab, thiab lwm yam khoom siv nyob ntawm daim ntawv thov.

Piping yuav tsum:

Txhawb kev ywj pheej

Tsis txhob ntim ntau dhau ntawm lub twj tso kua mis

Cia qhov xav tau thermal txav

Khaws kev sib raug zoo

Txo qhov tsis tsim nyog hydraulic poob

Lub twj tso kua mis yuav tsum tsis txhob siv los ua kev txhawb nqa rau cov kav dej.

Cov kav dej tsis raug tuaj yeem ua rau cov yeeb nkab lim, casing deformation, nce kev vibration, thiab ua haujlwm tsis ua haujlwm ntxov.

 

8. Kev sib cais ntawm cov twj tso kua mis centrifugal

Kev sib cais ntawm kev vibration tuaj yeem pab txo qis kev sib kis ntawm lub twj tso kua mis kev co mus rau hauv pem teb, lub hauv paus, thiab cov qauv nyob ib puag ncig.

Cov kev daws teeb meem muaj xws li:

Rubber Pads

Roj hmab vibration pads feem ntau yog siv rau me me los yog sib zog twj tso kua mis. Lawv yog cov yooj yim thiab economical.

Caij nplooj ntoos hlav Isolators

Lub caij nplooj ntoos hlav cais tawm tuaj yeem muab kev sib cais ntau dua thiab feem ntau txiav txim siab rau cov cuab yeej loj lossis kev teeb tsa nrog cov kev txwv nruj dua.

Inertia Bases

Lub hauv paus inertia tuaj yeem siv ua ke nrog kev sib cais kev co los muab lub platform ruaj khov thiab txhim kho kev ua haujlwm zoo.

Qhov raug rho tawm yuav tsum raug xaiv raws li qhov tseeb cov khoom hnyav, thauj khoom faib, kev khiav hauj lwm ceev, thiab yuav tsum tau muaj kev sib cais.

Tsuas yog tso cov qauv roj hmab hauv qab lub twj tso kua mis tsis tuaj yeem lav qhov kev tswj kev vibration zoo.

 

9. Tsis txhob muaj kev sib tsoo ntawm kev sib tsoo

Ib qho kev sib cais ntawm kev vibration tsis tuaj yeem ua haujlwm raug yog tias kev sib txuas nruj dhau los ntawm cov kev sib cais.

Muaj peev xwm vibration choj muaj xws li:

Rigid yeeb nkab txuas

Kev txhawb nqa tsis raug cai

Cov qauv kev sib cuag nyob ib ncig ntawm lub hauv paus cais

Rigid txhawb txuas ncaj qha mus rau lub hauv paus khoom siv

Flexible connectors yuav siv tau qhov tsim nyog kom haum raws li kev txav txav thiab txo qis kev sib kis.

Txawm li cas los xij, cov connectors hloov tau yuav tsumtsis yogsiv los them nyiaj rau cov yeeb nkab tsis zoo lossis cov yeeb nkab tsis txaus.

Txoj kev kom raug yog:

Kev txhawb nqa cov yeeb nkab kom raug + kho kom raug + kev sib txuas haum haum + kev xaiv kev sib cais kom raug

 

10. Xav txog Thermal Expansion

Thermal expansion yog ib qho tseem ceeb tshwj xeeb tshaj yog rau cov twj siv dej kub, boiler feedwater, thermal roj, los yog cov txheej txheem dej.

Raws li qhov kub hloov pauv, cov kav dej txuas txuas txuas ntxiv thiab cog lus.

Yog tias qhov kev txav no tsis raug cai, lub zog ntau dhau tuaj yeem hloov mus rau lub twj tso kua mis.

Tej yam tshwm sim muaj xws li:

Nozzle overload

Casing deformation

Ncej misalignment

Mechanical foob tsis ua haujlwm

Ua kom muaj kev vibration

Rau cov dej kub- cov ntawv thov dej, cov kav dej yuav tsum tau tsim nrog cov kev txhawb nqa tsim nyog, cov lus qhia, thauj tog rau nkoj, cov voj voog nthuav dav, lossis kev sib txuas yooj yim raws li txoj haujlwm xav tau.

 

11. Pump Commissioning Tom qab kev teeb tsa

Cov txheej txheem ua haujlwm ceev faj pab txheeb xyuas cov teeb meem kev teeb tsa ua ntej lub twj tso kua mis nkag mus rau kev pabcuam txuas ntxiv.

Kauj Ruam 1: Txheeb xyuas cov khoom siv kho tshuab

Tshawb xyuas:

Foundation

Baseplate

Anchor bolts

Kev sib txuas

Ncej alignment

Lubrication

Mechanical foob

Coupling tiv thaiv

Kauj Ruam 2: Txheeb xyuas cov kav dej

Xyuas kom tseeb tias cov kav dej nqus thiab tso tawm tau txais kev txhawb nqa zoo thiab tsis pub dhau kev ntxhov siab sab nraud.

Kauj Ruam 3: Paub meej tias lub twj tso kua mis filling lossis priming

Lub twj tso kua mis centrifugal yuav tsum tsis txhob khiav qhuav tshwj tsis yog tsim tshwj xeeb rau kev ua haujlwm qhuav.

Kauj Ruam 4: Paub meej tias kev sib hloov

Xyuas kom tseeb tias lub cev muaj zog rotates nyob rau hauv qhov tseeb.

Kauj Ruam 5: Pib lub twj tso kua mis

Ua raws li cov chaw tsim khoom tau pom zoo pib txheej txheem.

Kauj Ruam 6: Saib xyuas kev ua haujlwm

Tshawb xyuas:

Tus nqi ntws

Suction siab

Tshem tawm siab

Lub cev muaj zog tam sim no

Cov kabmob kub

Kev vibration

Mechanical seal leakage

Suab nrov nrov

Txhua yam mob txawv txav yuav tsum tau tshawb xyuas ua ntej ua haujlwm tas mus li.

 

12. Feem ntau ua rau lub twj tso kua mis ntau dhau

Yog tias lub twj tso kua mis centrifugal tshiab tau vibrates ntau dhau, tsis txhob xav tias lub twj tso kua mis nws tus kheej yog qhov tsis zoo.

Xyuas lub installation systematically.

Kev tsis ncaj ncees

Lub twj tso kua mis tsis raug thiab lub cev sib dhos tsis raug yog ib qho ua rau muaj kev vibration thiab bearing los yog coupling teeb meem.

Yeeb Nkab

Cov kav dej uas tsis raug raws nraim lossis tsis muaj kev txhawb nqa tuaj yeem ua rau muaj zog ntau dhau ntawm lub twj tso kua mis.

Teeb meem Foundation

Loose anchor bolts, tsis txaus grouting, lossis lub hauv paus tsis muaj zog tuaj yeem tso cai rau kev txav tsis tau.

Cavitation

NPSH tsis txaus, kev nqus dej ntau dhau, lossis kub ua kua tuaj yeem ua rau cavitation.

Kev khiav hauj lwm sab nraum qhov kev pom zoo

Kev khiav hauj lwm deb dhau ntawm lub twj tso kua mis nyiam ua haujlwm tuaj yeem ua rau hydraulic tsis ruaj khov thiab kev co.

Rotor lossis Bearing teeb meem

Kev tsis sib haum xeeb, kev puas tsuaj, lossis teeb meem ntawm ncej yuav tsum tau txiav txim siab thaum kev teeb tsa zoo txaus.

 

13. Centrifugal Pump Installation Checklist

Ua ntej pib ua haujlwm, cov ntsiab lus hauv qab no yuav tsum tau txheeb xyuas:

Yam khoom	Tshawb xyuas
Foundation	Stable, theem thiab haum
Baseplate	Txhawb kom zoo thiab grouted
Anchor Bolts	Txhim kho thiab nruj
Kev sib tw	Nyob rau hauv cov kev xav tau ntawm manufacturers
Mos Ko Taw	Tshawb xyuas thiab kho
Kev sib txuas	Txhim kho kom raug
Suction Piping	Kho kom raug thiab txhawb nqa
Tso Piping	Kho kom raug thiab txhawb nqa
Yeeb Nkab Stress	Tsis muaj kev thauj khoom ntau dhau
Lubrication	Kho hom thiab qib
foob	Txhim kho kom raug
Kev sib hloov	Kev taw qhia kom raug
Kev vibration	Tsis pub dhau qhov tau txais
Siab	Ua raws li kev xav tau

 

14. HNYB PUMPS: Txhim khu kev qha centrifugal twj tso kua mis

HNYB PUMPS yog cov kws tshaj lij kev lag luam twj tso kua mis chaw tsim tshuaj paus muab centrifugal twj tso kua mis rau cov dej, fais fab nroj tsuag, mining, boiler systems, petrochemical daim ntaub ntawv, tej yaam num hauv nroog, thiab lwm yam kev pab cuam.

Peb cov khoom muaj xws li:

Kab rov tav Split Case Centrifugal Pumps

Kab rov tav Multistage Centrifugal Pumps

Tus kheej -Sib npaug Multistage Pumps

Xaus Suction Centrifugal Pumps

Tshuaj Centrifugal Pumps

Siab -Cov twj tso kua mis centrifugal

Vertical centrifugal twj tso kua mis

Rau cov haujlwm tshwj xeeb, kev xaiv twj tso kua mis tuaj yeem ua raws li:

Flow Rate + Head + Fluid + Temperature + Pressure + NPSH + Installation Conditions

Peb pom zoo kom ntsuas lub twj tso kua mis, lub cev muaj zog, lub hauv paus, cov kav dej, thiab kev ua haujlwm raws li kev ua tiav kom ua tiav cov kev ua haujlwm ntev ntev -.

 

Kev txhim kho centrifugal twj tso kua mis yog qhov tseem ceeb rau kev ua haujlwm ruaj khov, tsis tshua muaj kev vibration, thiab lub neej ua haujlwm ntev.

Cov ntsiab cai tseem ceeb tshaj plaws yog:

Lub hauv paus ruaj khov + Kev sib raug zoo + Kev txhawb nqa Piping kom zoo + Tswj yeeb nkab kev ntxhov siab + Kev sib cais tsim nyog vibration + Ua haujlwm zoo

Kev sib cais ntawm kev vibration ib leeg tsis tuaj yeem daws teeb meem kev teeb tsa tseem ceeb. Lub twj tso kua mis txhim khu kev qha yuav tsum tau ua kom tag nrho lub cev ua haujlwm ua ke, los ntawm lub hauv paus thiab lub hauv paus phaj mus rau cov kav dej thiab kev ua haujlwm.

Los ntawm kev ua raws li kev teeb tsa thiab kev ua haujlwm kom zoo, cov neeg siv tuaj yeem txo qis kev vibration, tiv thaiv bearings thiab mechanical seals, txhim kho lub twj tso kua mis kev ntseeg siab, thiab txuas ntxiv cov khoom siv lub neej.