1 Muchidimbu
Iyo yakatsemuka gasi compressor uye kutyaira chiutsi turbine ye100Kt/dhipatimendi rekugadzira ethylene reBora LyondellBasell Petrochemical Co., Ltd. zvese zvine michina kubva kuJapan Mitsubishi Heavy Industries.
Iyo pyrolysis gasi compressor itatu-cylinder shanu-nhanho 16-nhanho impeller centrifugal compressor ine 6 suction ports uye 5 discharge ports.Iwo makuru ekuita ma parameter ndeaya anotevera;iyo yakatemerwa kumhanya ndeye 4056r/min, iyo yakayerwa simba i53567KW, kuburitsa kumanikidza kwecompressor i3.908Mpa, tembiricha yekuburitsa i77.5 ° C, uye chiyero chekuyerera i474521kg/h.Iyo inotyaira turbine turbine thrust inotakura yeyuniti imhando yeKingsbury inotakura ine 6 pads.Aya mabhengi akashongedzerwa nemapoka matanhatu emafuta ekuzora ekuzora, uye rimwe nerimwe boka remafuta anopinza ane 4 3.0mm uye 5 A 1.5mm oiri gomba rekupinda, iyo axial clearance pakati peiyo thrust bearing uye thrust plate ndeye 0.46-0.56mm.Gamuchira iyo yekumanikidza yekuzora nzira yepakati pekupa mafuta pachiteshi chemafuta ekuzora.
Iyo axis diagram ndeiyi inotevera:
2, Dambudziko reyuniti
Kubva pakatanga compressor unit muna Nyamavhuvhu 5, 2020, tembiricha yekurovera inotakura TI31061B yemhepo turbine yakachinja kazhinji, uye zvishoma nezvishoma yakawedzera.Kubva 16:43 muna Zvita 14, 2020, tembiricha yeTI31061B yakasvika 118 ° C, inongori maminetsi maviri kubva pakukosha kwealarm.℃.
Mufananidzo 1: Maitiro emhepo turbine thrust inotakura tembiricha TI31061B
3. Chikonzero chekuongorora uye matanho ekurapa
3.1 Zvinokonzeresa kushanduka kwekushisa kwe steam turbine thrust ine TI31061B
Mushure mekutarisa uye nekuongorora tembiricha yekuchinja maitiro eiyo inosimudzira turbine TI31061B, uye kusasanganisa pane-saiti chiridzwa matambudziko, shanduko yekuchinja, turbine bhurashi kupfeka, kumhanyisa kwemidziyo kushanduka, uye zvikamu zvemhando, zvikonzero zvikuru zveshaft. tembiricha kuchinja ndiko:
3.1.1 Mafuta ekuzora anoshandiswa mucompressor iyi SHELL TURBO T32, inova mineral oil.Kana kutonhora kuchikwira, mafuta ekuzora anoshandiswa akaiswa oxidation, uye zvigadzirwa zveoxidation zvinoungana pamusoro pegwenzi rinotakura kuti riite varnish.Mineral lubricating oil inonyanya kuumbwa nema hydrocarbons, ayo anodzikama patembiricha yepakamuri uye tembiricha yakaderera.Nekudaro, kana mamwe (kunyangwe nhamba diki kwazvo) yema hydrocarbon mamorekuru akasangana neoxidation reactions pakupisa kwakanyanya, mamwe ma hydrocarbon mamorekuru anozosanganawo neketani reactions, inova hunhu hwehydrocarbon chain reaction.
3.1.2 Kana mafuta ekuzora awedzerwa kune midziyo, mamiriro ekushanda anova mamiriro ekupisa kwepamusoro uye kudzvinyirira kwakanyanya, saka iyi nzira inoperekedzwa nekuwedzera kwekuita oxidation.Panguva yekushanda kwemidziyo, nekuti turbine thrust bearing iri padyo ne-ultra-high pressure steam, kupisa kunogadzirwa nekupisa conduction kwakakura.Panguva imwecheteyo, axial displacement yecompressor yanga yakakurisa kubva payakatanga, inosvika 0.49mm panguva imwe chete, ukuwo kukosha kwearamu yaive ± 0.5mm.The axial thrust ye steam turbine rotor yakakurisa, saka mwero weoxidation weiyi chikamu chinotakura kutakura unogona kunge wakakwira zvakapetwa kaviri kupfuura mwero weoxidation yezvimwe zvikamu.Mukuita uku, chigadzirwa cheoxidation chichavapo mukunyungudika, uye chigadzirwa cheoxidation chinozoitwa mvura kana iyo saturated state yasvika.
3.1.3 Varnish inonyungudika inonaya kuita vanishi isinganyunguke.Mafuta ekuzora anoumba varnish inonyungudika munzvimbo yepamusoro-tembiricha uye yakakwirira-inomanikidza nzvimbo.Apo mafuta anoyerera kubva panzvimbo yepamusoro-soro kusvika kune yakadzika-kupisa, kutonhora kunoderera uye kunyunguduka kunoderera, uye zvimedu zvevarnish zvinoparadzaniswa nemafuta ekuzora uye zvinotanga kuisa.
3.1.4 Kuiswa kwevarnish kunoitika.Mushure mekunge mavarnish particles aumbwa, anotanga kuungana uye kugadzira madhipoziti anonyanya kuisa panzvimbo inopisa simbi.Panguva imwecheteyo, sezvo tembiricha yekurovera yakakwira kubva pakatanga kushanda, tembiricha yebearing pad pano yakakwira nekukurumidza apo tembiricha yemamwe mabearings achinja zvishoma nezvishoma.
3.2 Gadzirisa dambudziko rekukwira kwetembiricha yemhepo inopinza turbine inotakura TI31061B
3.2.1 Mushure mekuona kuti tembiricha yekusimudza inotakura TI31061B yakakwira zvishoma nezvishoma, tembiricha yemafuta ekuzora yakaderedzwa kubva ku40.5 ° C kusvika 38 ° C, uye kudzvanywa kwemafuta ekuzora kwakasimudzwa kubva ku0.15Mpa kusvika 0.176Mpa kuti ireruke. kunonoka kukwira kwekushisa kwegwenzi rinotakura.
3.2.2 The steam turbine rotor ine nhanho gumi neshanu dzemapombi, nhanho gumi nembiri dzemapombi dzine maburi ekuenzanisa, uye nhanho dzekupedzisira nhatu hadzina kugadzirwa nemaburi ekuenzanisa.Iyo axial thrust margin yakagadzirwa neMitsubishi idiki zvakanyanya, saka gadzirisa iyo steam turbine yekubvisa kugadzirisa iyo axial thrust.Sezvinoratidzwa muMufananidzo 2 1279ZI31001C, kubviswa kwe shaft ye turbine yemhepo i 0.44mm.Mushure mekubvunzurudza mugadziri we compressor, shaft displacement yakanaka, zvinoreva kuti rotor iri kutamira kune compressor side kune yekutanga dhizaini rotor, saka zvinosarudzwa kudzikisa yepakati mhepo inotorwa kubva 300T / h Kuderedza kusvika 210T / h, wedzera mutoro padivi repasi-kudzvanywa kweiyo turbine yemhepo, wedzera kusunda padivi rekudzvanya, uye kuderedza axial svutugadzike pane yekukanda kutakura, nekudaro uchidzikisa kusimuka kwekukwira kwekushisa kunotakura tembiricha.
Mufananidzo 2 Hukama pakati pekuchinjisa shaft yeturbine yemhepo uye thrust bearing
3.2.3 Musi wa23 Mbudzi, 2020, sampu yemafuta ekuzora yeyuniti yakatumirwa kunzvimbo inoedza yeGuangzhou Institute of Mechanical Science Co., Ltd. kuti iongororwe uye iongororwe.Zvigumisiro zvinoratidzwa muMufananidzo 3. Mhedzisiro yekuongorora yakawana kuti kukosha kweMPC kwaive kwakakwirira, iyo inogona kutarisa kuitika kwemafuta oxidation.Iyo varnish ndicho chimwe chezvikonzero zvekupisa kwakanyanya kweiyo steam turbine thrust ine TI31061B.Kana paine varnish muoiri yekuzora system, kunyungudika nekunaya kwevarnish particles mumafuta i dynamic equilibrium system nekuda kwekusakwanisa kwemafuta ekuzora kunyungudutsa mavarnish particles.Kana ichinge yasvika pakuguta, varnish inorembera pabearing or bearing pad, zvichiita kuti tembiricha yebearing pad ichinje.Ingozi huru yakavanzika kune kushanda kwakachengeteka.
Kuburikidza netsvagiridzo, takasarudza Kunshan Winsonda, ine mhedzisiro yekushandisa zvirinani uye mukurumbira wemusika, kugadzira WVD electrostatic adsorption + resin adsorption, inova inoumba varnish yekubvisa midziyo yekubvisa varnish.
varnish chigadzirwa chakaumbwa nekuora kwemafuta, aripo mumafuta mumhepo yakanyungudutswa kana yakamiswa pasi pemamwe mamiriro emakemikari uye tembiricha.Kana iyo sludge ichipfuura kunyungudika kwemafuta ekuzora, iyo sludge ichadonha uye inogadzira varnish pamusoro pechikamu.
WVD-II yakatevedzana oiri yekuchenesa inonyatso kusanganisa tekinoroji yekuchenesa tekinoroji uye tekinoroji yekutsinhana ion, iyo inogona kunyatsobvisa uye kudzivirira sludge inonyungudika uye isinganyungudika inogadzirwa panguva yenguva dzose kushanda kweiyo turbine yemhepo, kuitira kuti varnish isagadzirwa.
Chinangwa cheWVD-II chinoteedzera mafuta ekuchenesa ndechekubvisa chikonzero chekuumbwa kwevarnish.Iyi tekinoroji inogona kuderedza zvirimo mumatope munguva pfupi, uye kudzoreredza iyo yekutanga lubricating system ine sludge yakawanda / varnish kusvika kune yakanyanya kushanda mamiriro mukati memazuva mashoma, nekudaro kugadzirisa zvachose dambudziko rekunonoka kukwira kwekushisa kwekusimudzira. mabhengi anokonzerwa nevarnish .
Mufananidzo 3 Muedzo uye kuongororwa kunoguma usati waisa iyo varnish yekubvisa unit
Oiri yenguva imwe yakachena: electrostatic adsorption yekubvisa non-soluble sludge / varnish Nheyo: electrostatic adsorption tekinoroji inobvisa zvinosvibisa, mafuta ari mukuita kwedenderedzwa repamusoro-voltage electrostatic field, kuitira kuti zvidimbu zvakasvibiswa zviratidze zvakanaka uye zvakaipa mhosva zvichiteerana. , uye pasi pekuita kwemunda wemagetsi we trapezoidal Sunda zvimedu zvakanaka uye zvisina kunaka kuti ushambire uchienda kune electrode yakaipa uye yakanaka maererano, uye zvikamu zvisina kwazvakarerekera zvinosvinwa uye zvinofambiswa nekuyerera kwezvimedu zvinopomerwa, uye pakupedzisira zvikamu zvose zvinoshambadzirwa pa. muunganidzi kuti abvise zvachose zvinosvibisa mumafuta.
Sekondari yakachena mafuta: Ion inotsinhanisa resin adsorption kubvisa yakanyungudika colloids Nheyo: Iyo yekuchaja adsorption tekinoroji chete haigone kugadzirisa yakanyungudika varnish, nepo ion resin ine mabhiriyoni enzvimbo dzepolar, dzinogona kutora varnish inonyungudika uye inogona kuva varnish, kuve nechokwadi chekuti zvigadzirwa zvinoshatisa zvinoita. kwete kuunganidza mumafuta ekuzora, uye inogona kuvandudza solvency yemafuta ekuzora, kuitira kuti sisitimu ive mune yakakwana inoshanda mamiriro.
Mufananidzo 5. Schematic diagram yechipiri yakachena mafuta
3.3 Mhedzisiro yekubvisa varnish
Varnish unit yakaiswa ikashanda muna Zvita 14, 2020, uye tembiricha yeturbine turbine inotakura TI31061B yakadzikira kusvika 92°C musi wa19 Zvita 2020 (sezvinoratidzwa mumufananidzo 6).
Fig.6 Tembiricha ye thrust inotakura TI31061B ye steam turbine
Mushure meanopfuura mwedzi wekushanda kwevarnish kubvisa unit, kunaka kwemafuta ekuzora kweyuniti kwakagadziridzwa zvakanyanya.Kuburikidza nekuona uye kuongororwa kweGuangyan Research Institute, iyo varnish tendency index yezvigadzirwa zvemafuta yakaderedzwa kubva pa10.2 kusvika 6.2, uye mwero wekusvibiswa wakaderedzwa kubva> 12 kusvika 7 Giredhi, hapana kurasikirwa kwezvimwe zvinowedzera mukuzora. mafuta (ona Mufananidzo 7 wekutsvaga uye kuongororwa kwemigumisiro mushure mokunge chikwata chekubvisa varnish chaiswa).
FIG.7 Muedzo uye ongororo mhinduro mushure mekunge unit yaiswa
4 Mabhenefiti ehupfumi anogadzirwa
Kuburikidza nekumisikidzwa uye kushanda kweiyo varnish yekubvisa unit, dambudziko rekunonoka kwekushisa kusimuka kweiyo TI31061B yemhepo turbine yakakonzerwa nevarnish inogadziriswa zvachose, uye kurasikirwa kukuru kwakakonzerwa nekuvharika kwepyrolysis gasi compressor unit. kudziviswa (anenge mazuva matatu, kurasikirwa kunosvika mamirioni mana eRMB; kutsiviwa kweiyo trust inotakura turbine yemhepo inotora zuva 1, kurasikirwa i1 miriyoni), uye kurasikirwa kwezvimedu kune zvinotenderera nekuisa chisimbiso zvikamu mushure. tembiricha yekurovera kunowedzera zvishoma nezvishoma (kurasikirwa kuri pakati pe500,000 uye 8 miriyoni yuan pakati).
Chikwata chacho chakazadzwa nehuwandu hwemadhiramu e160 ezvigadzirwa zvemafuta, uye zvigadzirwa zvemafuta zvakasvika zvakakwana kune indekisi yakakodzera mushure mekusefa kwepamusoro-soro kweiyo varnish yekubvisa unit, kuchengetedza 500,000 RMB mumutengo wekutsiva chigadzirwa chemafuta.
5 Mhedziso
Nekuda kwekureba kwepamusoro-tembiricha, kudzvanya, uye kukurumidza-kumhanya kwemamiriro ekushanda mune lubrication system yezvikamu zvakakura, iyo oiri oxidation inokurumidza kukurumidza uye iyo varnish index inowedzera.Njodzi yakavanzika yekutsva kwegwenzi mukusundidzira inovimbisa kushanda kwakasimba kwenguva refu kwechikwata, izvo zvinoratidza kuti matanho ari pamusoro anoshanda.
Nguva yekutumira: Zvita-28-2022