1 Txheej txheem cej luam
Cov pa roj compressor tawg thiab tsav chav turbine ntawm 100Kt / ib ethylene ntau lawm department ntawm Bora LyondellBasell Petrochemical Co., Ltd. yog tag nrho cov nruab nrog cov cuab yeej los ntawm Nyiv lub Mitsubishi Heavy Industries.
Lub pyrolysis roj compressor yog peb lub tog raj kheej tsib-theem 16-theem impeller centrifugal compressor nrog 6 qhov chaw nres nkoj thiab 5 qhov chaw nres nkoj tawm.Cov kev ua haujlwm tseem ceeb yog raws li hauv qab no;Qhov ntsuas ceev yog 4056r / min, lub zog ntsuas yog 53567KW, qhov tso tawm siab ntawm lub compressor yog 3.908Mpa, qhov tso tawm kub yog 77.5 ° C, thiab qhov ntws yog 474521kg / h.Kev tsav tsheb chav turbine thrust bearing ntawm chav tsev yog Kingsbury hom thrust bearing nrog 6 pads.Cov kabmob no tau nruab nrog 6 pawg ntawm lubricating roj inlets rau lubrication, thiab txhua pab pawg ntawm cov roj inlets muaj 4 3.0mm thiab 5 A 1.5mm roj inlet qhov, axial clearance ntawm lub thrust bearing thiab thrust phaj yog 0.46-0.56mm.Txais yuav txoj kev quab yuam lubrication ntawm centralized roj mov ntawm lub lubricating roj chaw nres tsheb.
Nws daim duab axis yog raws li nram no:
2, Unit teeb meem
Txij li thaum pib ntawm lub compressor chav tsev nyob rau lub yim hli ntuj 5, 2020, qhov kub ntawm lub thrust bearing TI31061B ntawm lub chav turbine tau fluctuated nquag, thiab tau maj mam nce.Raws li ntawm 16:43 Lub Kaum Ob Hlis 14, 2020, qhov kub ntawm TI31061B mus txog 118 ° C, uas tsuas yog 2 feeb ntawm lub tswb.℃.
Daim duab 1: Kev sib txawv ntawm chav turbine thrust bearing kub TI31061B
3. Ua rau kev soj ntsuam thiab ntsuas kev kho mob
3.1 Ua rau kub hloov pauv ntawm chav turbine thrust bearing TI31061B
Tom qab kuaj xyuas thiab tshuaj xyuas qhov ntsuas kub hloov pauv ntawm qhov kev sib tw ntawm lub zog turbine TI31061B, thiab tsis suav nrog cov teeb meem ntawm qhov chaw ntsuas pom, cov txheej txheem hloov pauv, chav turbine txhuam hnav, cov cuab yeej ceev hloov pauv, thiab qhov zoo, qhov laj thawj tseem ceeb ntawm lub tshuab ua haujlwm. Qhov kub thiab txias fluctuations yog:
3.1.1 Lub lubricating roj siv nyob rau hauv no compressor yog SHELL TURBO T32, uas yog ntxhia roj.Thaum qhov kub thiab txias, cov roj lubricating hauv kev siv yog oxidized, thiab cov khoom oxidation sib sau ua ke ntawm cov kabmob hav txwv yeem los ua cov kua roj vanish.Mineral lubricating roj feem ntau yog tsim los ntawm hydrocarbons, uas yog qhov ruaj khov ntawm chav tsev kub thiab tsis kub.Txawm li cas los xij, yog tias qee qhov (txawm tias tsawg heev) ntawm hydrocarbon molecules raug oxidation cov tshuaj tiv thaiv ntawm qhov kub thiab txias, lwm cov hydrocarbon molecules tseem yuav raug cov tshuaj tiv thaiv kab mob, uas yog tus yam ntxwv ntawm hydrocarbon chain reactions.
3.1.2 Thaum cov roj lubricating ntxiv rau cov khoom siv, kev ua haujlwm yuav dhau los ua lub xeev ntawm qhov kub thiab txias, yog li cov txheej txheem no tau ua nrog kev nrawm ntawm cov tshuaj tiv thaiv oxidation.Thaum lub sijhawm ua haujlwm ntawm cov cuab yeej siv, vim tias cov turbine thrust bearing yog nyob ze rau ntawm lub zog siab ultra-siab, cov cua sov uas tsim los ntawm cov cua sov conduction kuj loj heev.Nyob rau tib lub sijhawm, axial txav ntawm lub compressor tau loj dhau txij li nws tau pib, ncav cuag 0.49mm ntawm ib zaug, thaum lub tswb ntsuas yog ± 0.5mm.Lub axial thrust ntawm chav turbine rotor yog loj heev, yog li oxidation tus nqi ntawm no thrust bearing ib feem yuav yog ob zaug siab li oxidation tus nqi ntawm lwm qhov chaw.Hauv cov txheej txheem no, cov khoom oxidation yuav muaj nyob rau hauv lub xeev soluble, thiab cov khoom oxidation yuav precipitated thaum lub saturated lub xeev mus txog.
3.1.3 Soluble kua roj vanish precipitates rau cov kua roj vanish insoluble.Lubricating roj tsim cov kua roj vanish soluble nyob rau hauv high-temperature thiab high-pressure cheeb tsam.Thaum cov roj ntws los ntawm qhov kub thiab txias mus rau qhov chaw qis, qhov kub thiab txias yuav txo qis, thiab cov kua roj vanish yog cais los ntawm cov roj lubricating thiab pib tso nyiaj.
3.1.4 Deposition ntawm cov kua roj vanish tshwm sim.Tom qab cov kua roj vanish tau tsim, lawv pib agglomerate thiab tsim cov deposits uas nyiam tso rau ntawm cov hlau kub.Nyob rau tib lub sijhawm, txij li qhov kub ntawm cov kabmob thrust tau siab txij li thaum pib ua haujlwm, qhov kub ntawm cov kabmob ntawm no tau nce sai heev thaum qhov kub ntawm lwm cov kabmob tau hloov maj mam.
3.2 daws qhov kub nce qhov teeb meem ntawm chav turbine thrust bearing TI31061B
3.2.1 Tom qab pom tias qhov kub thiab txias ntawm cov thrust bearing TI31061B tau maj mam nce, qhov kub ntawm cov roj lubricating tau qis los ntawm 40.5 ° C mus rau 38 ° C, thiab lub siab ntawm cov roj lubricating tau nce los ntawm 0.15Mpa rau 0.176Mpa kom yooj yim. qhov qeeb nce ntawm cov kabmob bush kub.
3.2.2 Chav turbine rotor muaj 15 theem ntawm impellers, thawj 12 theem ntawm impellers muaj qhov sib npaug, thiab 3 theem kawg tsis tsim nrog qhov sib npaug.Lub axial thrust margin tsim los ntawm Mitsubishi yog qhov me me dhau, yog li kho cov chav turbine extraction los kho cov axial thrust.Raws li pom nyob rau hauv daim duab 2 1279ZI31001C, lub zog txav ntawm lub turbine yog 0.44 hli.Tom qab sab laj nrog lub chaw tsim khoom compressor, qhov kev hloov pauv ntawm cov ncej yog qhov zoo, uas txhais tau hais tias lub rotor hloov mus rau sab compressor txheeb ze rau tus qauv tsim rotor, yog li nws tau txiav txim siab txo qhov nruab nrab cua rho tawm los ntawm 300T / h Txo rau 210T / h, nce lub load nyob rau hauv qis-pressure sab ntawm lub chav turbine, ua rau kom lub thrust nyob rau hauv high-pressure sab, thiab txo lub axial thrust ntawm lub thrust bearing, yog li ntawd slows down lub rising trend ntawm thrust bearing kub.
Daim duab 2 Kev sib raug zoo ntawm cov ncej hloov chaw ntawm chav turbine thiab thrust bearing
3.2.3 Lub Kaum Ib Hlis 23, 2020, cov qauv roj lubricating ntawm chav tsev tau raug xa mus rau lub koom haum kuaj ntawm Guangzhou Institute of Mechanical Science Co., Ltd. rau kev sim thiab tshuaj xyuas.Cov txiaj ntsig tau pom hauv daim duab 3. Cov txiaj ntsig kev soj ntsuam pom tias MPC tus nqi siab, uas tuaj yeem txiav txim siab qhov tshwm sim ntawm cov roj oxidation.Cov kua roj vanish yog ib qho ntawm cov laj thawj rau qhov kub siab ntawm chav turbine thrust bearing TI31061B.Thaum muaj cov kua roj vanish nyob rau hauv lub lubricating roj system, lub dissolution thiab nag lossis daus ntawm cov kua roj vanish hais nyob rau hauv cov roj yog ib tug dynamic equilibrium system vim tsis muaj peev xwm ntawm cov roj lubricating rau yaj cov kua roj vanish hais.Thaum nws mus txog lub xeev saturated, cov kua roj vanish yuav dai rau ntawm cov kabmob lossis cov kabmob, ua rau cov kabmob pad kub hloov pauv.Nws yog qhov tseem ceeb zais kev phom sij rau kev ua haujlwm nyab xeeb.
Los ntawm kev tshawb fawb, peb xaiv Kunshan Winsonda, uas muaj kev siv zoo dua thiab kev lag luam lub koob npe nrov, los tsim WVD electrostatic adsorption + resin adsorption, uas yog cov khoom siv sib xyaw ua kua roj vanish tshem tawm cov kua roj vanish.
kua roj vanish yog ib yam khoom tsim los ntawm degradation ntawm cov roj, uas muaj nyob rau hauv cov roj nyob rau hauv ib tug yaj los yog tshem tawm lub xeev nyob rau hauv tej yam tshuaj tej yam kev mob thiab kub.Thaum cov sludge tshaj qhov solubility ntawm cov roj lubricating, cov sludge yuav precipitate thiab tsim cov kua roj vanish rau saum npoo ntawm cov khoom.
WVD-II series roj purifier zoo sib xyaw ua ke electrostatic adsorption purification technology thiab ion exchange technology, uas muaj peev xwm tshem tawm thiab tiv thaiv cov soluble thiab insoluble sludge generated thaum lub sij hawm ib txwm ua hauj lwm ntawm lub chav turbine, thiaj li hais tias cov kua roj vanish tsis tau tsim.
Lub hom phiaj ntawm WVD-II series roj purifiers yog kom tshem tawm qhov ua rau ntawm cov kua roj vanish.Cov thev naus laus zis no tuaj yeem txo cov ntsiab lus ntawm cov sludge nyob rau lub sijhawm luv luv, thiab rov qab kho cov txheej txheem lubricating qub nrog cov kua roj vanish ntau ntau rau hauv lub xeev kev ua haujlwm zoo nyob rau ob peb hnub, yog li daws tau qhov teeb meem ntawm qhov kub thiab txias ntawm thrust. bearings tshwm sim los ntawm cov kua roj vanish.
Daim duab 3 Qhov kev sim thiab kev tshuaj ntsuam xyuas ua ntej txhim kho cov kua roj vanish tshem tawm
Ib zaug huv cov roj: electrostatic adsorption kom tshem tawm cov tsis-soluble sludge / kua roj vanish Txoj Cai: electrostatic adsorption technology tshem tawm cov pa phem, cov roj yog nyob rau hauv qhov kev txiav txim ntawm ib ncig high-voltage electrostatic teb, thiaj li hais tias cov khoom qias neeg pom zoo thiab tsis zoo tsub raws. , thiab nyob rau hauv qhov kev txiav txim ntawm lub trapezoidal hluav taws xob teb Push qhov zoo thiab tsis zoo nqi hais mus ua luam dej ntawm qhov tsis zoo thiab zoo electrodes feem, thiab cov nruab nrab hais yog squeezed thiab tsiv los ntawm cov ntws ntawm them hais, thiab thaum kawg tag nrho cov particles yog adsorbed rau. tus collector kom tshem tawm cov pa phem nyob rau hauv cov roj.
Secondary huv cov roj: Ion pauv resin adsorption kom tshem tawm cov yaj colloids Txoj Cai: Tus nqi adsorption tshuab ib leeg tsis tuaj yeem daws cov kua roj vanish yaj, thaum cov ion resin muaj ntau lab tus polar qhov chaw, uas tuaj yeem nqus cov kua roj vanish thiab cov kua roj vanish, kom ntseeg tau tias cov khoom degradation ua. tsis sib sau ua ke hauv cov roj lubricating, thiab tuaj yeem txhim kho cov kuab tshuaj ntawm cov roj lubricating, kom lub kaw lus nyob rau hauv ib qho kev ua haujlwm zoo.
Daim duab 5. Schematic daim duab ntawm cov roj huv theem nrab
3.3 Cov nyhuv ntawm kev tshem tawm cov kua roj vanish
Cov kua roj vanish tau teeb tsa thiab ua haujlwm thaum Lub Kaum Ob Hlis 14, 2020, thiab qhov kub thiab txias ntawm chav turbine thrust bearing TI31061B poob mus txog 92 ° C thaum Lub Kaum Ob Hlis 19, 2020 (raws li pom hauv daim duab 6).
Fig.6 Kub sib txawv ntawm thrust bearing TI31061B ntawm chav turbine
Tom qab ntau tshaj li ib lub hlis ntawm kev ua haujlwm ntawm cov kua roj vanish tshem tawm, qhov zoo ntawm cov roj lubricating ntawm chav tsev tau zoo tuaj.Los ntawm kev tshawb nrhiav thiab kev tshuaj xyuas ntawm lub koom haum tshawb fawb Guangyan, cov kua roj vanish ntawm cov khoom siv roj tau raug txo los ntawm 10.2 mus rau 6.2, thiab cov pa phem tau txo qis los ntawm> 12 mus rau 7 Qib, tsis muaj kev poob ntawm cov khoom ntxiv hauv lub lubricating. roj (saib daim duab 7 rau kev tshawb nrhiav thiab kev soj ntsuam cov txiaj ntsig tom qab lub tshuab tshem tawm cov kua roj vanish raug teeb tsa).
FIG.7 Kev ntsuam xyuas thiab kev txheeb xyuas cov txiaj ntsig tom qab kev teeb tsa
4 Cov txiaj ntsig nyiaj txiag tsim tawm
Los ntawm kev teeb tsa thiab kev ua haujlwm ntawm chav tsev tshem tawm cov kua roj vanish, qhov teeb meem ntawm qhov ntsuas kub qeeb qeeb ntawm cov thrust bearing TI31061B ntawm chav turbine uas tshwm sim los ntawm cov kua roj vanish yog daws tau, thiab qhov poob loj heev los ntawm kev kaw ntawm pyrolysis gas compressor chav tsev yog zam (tsawg kawg 3 hnub, qhov poob yog tsawg kawg yog 4 lab RMB; kev hloov pauv ntawm cov kabmob thrust ntawm lub tshuab nqus tsev vacuum siv sijhawm 1 hnub, qhov poob yog 1 lab), thiab qhov poob ntawm cov khoom seem rau kev sib hloov thiab sealing qhov chaw tom qab. qhov kub ntawm cov kabmob thrust nce maj mam (qhov poob ntawm 500,000 thiab 8 lab yuan ntawm).
Chav tsev tau ntim nrog tag nrho ntawm 160 lub thoob ntawm cov khoom siv roj, thiab cov khoom siv roj ua tiav tau mus txog qhov tsim nyog Performance index tom qab high-precision pom ntawm cov kua roj vanish tshem tawm chav tsev, txuag 500,000 RMB hauv cov khoom siv roj hloov cov nqi.
5 Kev xaus
Vim lub sij hawm ntev ntawm kev kub siab, kev kub siab, thiab kev ua haujlwm siab ceev hauv lub tshuab lubrication ntawm cov chav loj, cov roj oxidation ceev nrawm thiab cov kua roj vanish nce ntxiv.Qhov kev phom sij zais ntawm hav txwv yeem kub hnyiab hauv lub laub bearing ua kom lub sijhawm ntev ruaj khov ntawm chav tsev, uas ua pov thawj tias cov kev ntsuas saum toj no muaj txiaj ntsig.
Post lub sij hawm: Dec-28-2022