Ukusetshenziswa kwe-electrostatic oil purifier ohlelweni lukawoyela we-turbine

Abstract: ikhwalithi yamafutha okugcoba e-turbine namafutha we-hydraulic ukumelana nomlilo kuthinta ngokuqondile ukusebenza okuphephile nokuthembekile kweyunithi ye-turbine.Ngokuthambekela kuma-turbines anamandla amakhulu namapharamitha aphezulu, izimfuneko zokuhlanzeka kukawoyela wokugcoba we-turbine namafutha abamba ukushisa angangeni emlilweni ziya ngokuya ziba phezulu.Leli phepha lethula umgomo kanye nokusebenza kwesihlanzi sikawoyela we-electrostatic futhi lethula ukusetshenziswa kwaso kuwoyela wokugcoba we-turbine namafutha wehydraulic angashi.

Amagama angukhiye:i-electrostatic oil purifier, ifilimu, uwoyela wokugcoba, uwoyela we-hydraulic ongashi, i-turbine.

Isingeniso
I-steam turbine lubrication system esetshenziswa i-steam turbine lubricating oil kanye ne-hydraulic control system resistant hydraulic oil, inezidingo eziqinile ekusebenzeni kweyunithi, njenge-viscosity, ukungcoliswa kwezinhlayiyana, umswakama, inani le-asidi, ukumelana ne-oxidation, ukumelana ne-emulsification [1-2], ukungcoliswa kwezinhlayiyana. kubaluleke kakhulu, okuhlobene ne-turbine rotor shaft kanye ne-bearing wear, isistimu yokulawula, ukuguquguquka kwe-valve kanye ne-valve ye-servo, kuthinta ngokuqondile ukuphepha kokusebenza kwemishini ye-steam turbine.

Ngokuthuthukiswa kwemishini ye-turbine ye-steam ekuqondeni komthamo omkhulu kanye nemingcele ephezulu, ukuze kuncishiswe usayizi wesakhiwo semoto kawoyela, uwoyela we-hydraulic anti-cobustible uthuthuka ubheke ekucindezelweni okuphezulu [3-4].Ngokuthuthukiswa kwezidingo zokuthembeka zokusebenza kweyunithi, izidingo zokuhlanzeka zikawoyela wokugcoba we-steam turbine kanye namafutha adonsela amanzi angashi ziya ngokuya ziba phezulu.Ukuze uqinisekise ukuthi inkomba yekhwalithi kawoyela ekusebenzeni kweyunithi ihlala ilawulwa ngaphakathi kwebanga elijwayelekile, uwoyela wokugcoba kanye nowoyela we-hydraulic anti-rubustible hydraulic osebenza ku-inthanethi wokuhlanza uwoyela kuyadingeka, ngakho-ke ukukhethwa kwesihlanza uwoyela kanye nomphumela waso wokwelashwa kuzoqondana. kuthinte ukuphepha nokuthembeka kokusebenza kwe-steam turbine.

Uhlobo lokuhlanza
Uhlobo lokuhlanza uwoyela luhlukile ngokwesimiso sokuhlunga.Isihlanzi sikawoyela singahlukaniswa sibe ukuhlungwa komshini, ukuhlunga kwe-centrifugal kanye nokuhlunga kwe-electrostatic adsorption (njengoba kukhonjisiwe kuThebula 1).Kubunjiniyela obusebenzayo, izindlela zokwelapha eziningana ezahlukene zivame ukusetshenziswa ngokuhlanganiswa.

1.1 Imishini yokuhlanza uwoyela
Isihlanzi sikawoyela esisebenza ngomshini siwukunqamula ukungcola okuyimbudumbudu emafutheni ngesici sesihlungi esisebenza ngomshini, umphumela waso wokuhlanza uhlobene ngokuqondile nokunemba kwesihlungi esisebenza ngomshini ukunemba kwesihlungi kufika ku-1 um, lolu hlobo lokuhlanza uwoyela lusetshenziswa kabanzi uhlelo lwamandla.Ngokuvamile, isihlanzi sikawoyela esiphindwe kabili, isikrini sokubuyisa uwoyela kanye nesikrini sokuhlanza uwoyela esiku-inthanethi esilungiselelwe ohlelweni lukawoyela wokugcoba konke okomshini womshini wokuhlanza uwoyela.Ukungcola kwezinhlayiyana ezinkulu ohlelweni lukawoyela wokugcoba kungasuswa ngomshini wokuhlanza uwoyela, futhi ukungcola kwezinhlayiyana ezincane kungasuswa ngesici esinembayo somshini wokuhlanza.
Ububi bemishini yokuhlanza uwoyela: uma kukhuphuka ukunemba kokuhlunga, amandla amakhulu ahambisanayo okumelana, ukulahlekelwa kwengcindezi yokunikezwa kukawoyela kukhulu;isilinganiso sempilo yesevisi yesici sokuhlunga sifushane, umsebenzi udinga ukufaka esikhundleni sesici sokuhlunga njalo emsebenzini, ukusebenza akunakwenzeka kubangela ukungcoliswa kokwenziwa;ayikwazi ukuhlanza kahle amanzi kanye ne-glue emafutheni Into nemfucumfucu encane kunosayizi wesihlanzi.Ukuze unqobe ububi obuPhezulu, ezinhlelweni zobunjiniyela, isicoci sikawoyela esiyimishini ngokuvamile sikanye nezinye izindlela ze-Chemical inetha (njengokuphelelwa amanzi kwe-vacuum, njll.), ezisetshenziswa ndawonye ukuze kuzuzwe umphumela ophusile wendawo.

1.2 Isihlanzi sikawoyela se-Centrifugal

Ubuchwepheshe bokuhlunga be-centrifugal bokuhlanza uwoyela ukusebenzisa i-centrifuge ukuhlanza uwoyela ethangini.Ngokuzungezisa amafutha aqukethe izinhlayiya nezinye izinto ezingcolisayo ngesivinini esikhulu, ukuminyana kukhulu kunokungcola kwamafutha okuyi-centrifugal out, ukufeza inhloso yokuhlukanisa uwoyela ohlanzekile.Izinzuzo zayo ukuthi ukususwa kwamanzi amahhala kanye nezinhlayiya ezinkulu zokungcola kunomphumela omuhle, umthamo omkhulu wokwelapha, ukonakala ukuthi ukususwa kwezinhlayiya ezincane kumpofu, futhi akukwazi ukususa amanzi angenawo mahhala.I-Centrifugal oil purifier isetshenziswa kakhulu ekwelapheni uphethiloli embonini ye-turbine yegesi, futhi ivamise ukusetshenziswa ngokuhlanganiswa nokwelashwa kokuhlunga ngomshini ohlelweni lukawoyela wokugcoba i-turbine ye-steam.Ngenxa yokuthi ukujikeleza kwe-centrifuge ngesivinini esikhulu nakho kukhulu, okokusebenza kunomsindo, indawo yokusebenza empofu, umthamo futhi uyasinda.

1.3 Isihlanzi sikawoyela we-Electrostatic

Isihlanzi sikawoyela we-electrostatic sisebenzisa ikakhulukazi inkambu yamandla kagesi aphezulu ekhiqizwa ijeneretha ye-electrostatic ukuze yenze izinhlayiya ezingcolisayo kuwoyela ezilayishwe ama-ion kagesi futhi anamathiselwe ku-fiber ngaphansi kwesenzo senkambu kagesi.Isimiso siboniswa kuMfanekiso 1. Ngenxa yesimiso se-adsorption esikhundleni sokuhluzwa, isihlanzi sikawoyela we-electrostatic singathwebula zonke izinhlobo zokungcola okungu-0. 02 μ m, okuhlanganisa izinto zensimbi eqinile, izinhlayiya ezithambile zingasuswa.

Izici ze-electrostatic oil purifier:

(1)Ukunemba okuphezulu kokuhlanza, ukunemba kwesihlungi kufika ku-0. 1 μ m, Ingakwazi ukususa ukungcola kwe-sub-micron;
(2)ingakwazi ukuhlanganisa ngempumelelo uhlelo lwe-vacuum kanye nesistimu ye-coalescent, Ingakwazi ukususa ngokushesha amanzi negesi;
(3) isivinini sokuhlanza esisheshayo, Ingakwazi ukucubungula izinhlayiya ngokushesha, ihlanzeke ngokushesha;Izinga lokugeleza elikhulu, Ingakwazi ukuhlangabezana nezidingo zokugeza nokuhlanza;
4 inkomba yomkhiqizo;
(5)ukusetshenziswa okubanzi, noma ngabe umswakama kuwoyela weqa izinga, kodwa futhi ungasebenza ngokujwayelekile.

2 I-varnish
2.1 Ingozi yokuvanisha
"i-varnish" yaziwa nangokuthi i-carbon accumulation, i-glue, i-lacquer material, i-oksijeni enwebekayo Ikhemikhali, isikhumba se-patent, njll., kungenzeka ukuthi i-orange, insundu noma emnyama engancibiliki Isixazululo se-membrane sediment, iwumkhiqizo wokuwohloka kwamafutha.Ngemuva kokuthi i-varnish ibonakala ohlelweni lwe-oyili yokugcoba i-steam turbine, slide ngaphakathi kwe-bearing I-varnish eyakhiwe ixhunywe kalula endaweni yensimbi, ikakhulukazi kuma-bearings amaningi Igebe elincane liphumela kubukhulu obuncane befilimu yamafutha kanye nokucindezela okukhulu kwefilimu yamafutha Okukhulu, umthamo wokuthwala uyancipha, izinga lokushisa likawoyela wokugcoba liyakhuphuka, ukuphepha kwesihlahla esithwalayo kuzothinta kabi [4,10-11].
isenzakalo se-varnish kanye nokulimala kwayo eYurophu naseMelika, eJapane iye yaziswa, i-United States Izwe liye lakha izinga lokutholwa kwe-varnish (ASTM D7843-18), futhi Inkomba yokuthambekela kwe-varnish ifakiwe kunkomba yokuhlola yokuguqulwa kwamafutha.Izwe lethu liphinde labala i-varnish njengento yokuhlola ku-GB / T 34580-2017.

Izingozi ze-varnish zimi kanje

(1) ngenxa yokushisa okuphezulu kokusebenza kwendawo yokuthwala, i-varnish kulula ukunamathisela endaweni yokusebenza ye-shuttle, ngokuhamba kwesikhathi, ubuso buyoba yisimo esincibilikisiwe (bheka umfanekiso 2);

:(2) ukuphuma kwebhulokhi futhi kwandise ukungqubuzana;
(3) vimba isihlanzi futhi ubangele ukulimala kwemishini;
(4) ivanishi efakwe endaweni epholile iholela ekulahlekeni kokushisa okungekuhle, ukukhuphuka kwezinga lokushisa likawoyela kanye ne-oxidation kawoyela;
(5) i-varnish iyi-polar, kulula ukuyinamathisela ezinhlayiyeni zensimbi noma eziqinile, okubangela ukuguga kwemishini.

2.2 ukususwa kwe-varnish

Amafutha okugcoba "izinhlayiya ezithambile" ze-varnish nodaka zibalwe ngaphezu kuka-80% wengqikithi yokungcola [12-13], ngenxa yokuthi "izinhlayiya ezithambile" zincane, uma ukusetshenziswa kwendlela yokuhlunga ngomshini kulula ukubangela isihlanzi. , ukuvinjwa kwesihlanzi esiyinhloko kanye nomphumela wokuhlunga akulungile, futhi izinhlayiya zezinhlayiya ze-electrostatic purifier field adsorption kumqoqi, ngakho-ke, zingasusa ngempumelelo izinhlayiya ezincane ezinto ezingcolisa uwoyela, futhi umthamo wesikali mkhulu, ngakho-ke usetshenziswa kabanzi phesheya ukuze kususwe ukuvenisha nodaka. emafutheni.I-electrostatic oil purifier ayikwazi nje ukususa ngempumelelo i-varnish emafutheni okugcoba, kodwa futhi igeze i-varnish efakwe endaweni yensimbi ukuze kuqinisekiswe ukusebenza okuphephile kwemishini nokwandisa impilo yesevisi yamafutha.

1.Ukusetshenziswa kwe-electrostatic oil purifier ohlelweni lukawoyela wokugcoba

Ngenkathi imboni yamandla eFangchenggang ilungisa kabusha umshini ongu-3 # ngoJuni 2019, kwatholakala into esobala yokuvanisha kuthayela we-axial (njengoba kukhonjisiwe kuMfanekiso 3), kanye namamaki asobala wokuklwebheka.I-varnish itholakala ngemva kokuhlolwa kwesampula yamafutha I-membrane propensity index idlule izinga, yafinyelela ku-18.2.Isistimu kawoyela ye-lube yeyunithi Ifakwe isihlanzi sikawoyela esiphindwe kabili, isihlanzi samafutha esibuyayo, isihlanzi esiku-inthanethi, kodwa konke kungokwezihlanzi zemishini, kunzima ukususa ukuvanisha.Ngaphezu kwalokho, isitshalo samandla sathengwa I-brand centrifugal purifier purifier purifier, futhi ayikwazi ukukhipha i-varnish.
Ithangi likawoyela wokugcoba walo mshini ongu-3 # lingu-43 m³, kusetshenziswa uwoyela we-Great Wall TSA 46 Steam turbine (Ikilasi A).Ukuze uqinise lawa mafutha okugcoba Ku-varnish isuswe ngokuphelele, futhi uvimbele i-varnish futhi, dweba i-VOC-E-5000 ngesilinganiso sokugeleza kwe-3000 L / h, uhlobo lwe-electrostatic purifier lwakhiqizwa Umshini wamafutha (njengoba kuboniswe kuMfanekiso 4), futhi isetshenziswe kuwoyela wokugcoba we-Fangchenggang power plant Ukuvuselelwa kabusha.Amafutha ahlanzekile athathwa njengesampula ku-1000 mL njalo, ngokulandelana Ezikhungweni zokuhlola zenkampani yangaphandle i-Shanghai Runkai ne-Guangzhou Research Institute laboratory ihlaziya.