Ukusetshenziswa okusha kobuchwepheshe bokuhlunga kwe-varnish ku-syngas compressor

I-Abstract: Hlaziya izimbangela zokuguquguquka okukhulu kwezinga lokushisa kwegobolondo leyunithi ye-compressor eyi-centrifugal, ubeke phambili izixazululo eziqondile, futhi ulawule amaphuzu engozi yokusebenza kanye nezinyathelo zokuvimbela.

Amagama angukhiye: i-centrifugal compressor group varnish ephethe izinga lokushisa lehlathi

1isifinyezo

Iyunithi yokucindezela i-Syngas K04401 ye-CNOOC Huahui Coal Chemical Co., LTD idizayinelwe futhi yakhiqizwa ngabakwaMitsubishi, e-Japan.Isakhiwo somumo sifakwe kanje:

I-Syngas compressor unit K04401 high 3V-7S (Hp), igobolondo le-low pressure cylinder 3V-7 (Lp) iyisakhiwo somphongolo, umzimba wombhobho ongezansi ubheke kumshayeli, uhlangothi olukhululekile luvulekile, ukufakwa kalula kusilinda sangaphakathi.

Ithebula 1: Amapharamitha wokusebenza we-K04401 isilinda esiphansi nesiphezulu sokucindezela 3V-7 (Lp) / 3V-7S (Hp) okokusebenza

2. Iyunithi 2 inezinkinga

NgoMeyi 2020, izinga lokushisa le-axle yeyunithi lashintshashintsha, futhi izinga lokushisa lamanye amaphuzu okushisa alikwazanga ukubuyela kunani lokuqala lokusebenza.Phakathi kwazo, izinga lokushisa elithwala igobolondo eliyiradial main of the steam turbine exhaust end TI-04457B lifinyelele ku-82℃ futhi linomkhuba okhuphukayo.

Umfanekiso 1: Ithrendi yeyunithi enephuzu lokushisa lasehlathini TI04457B

3. Ukuhlaziywa kwembangela kanye nezinyathelo zokwelapha

3.1 Ukwenyuka kwezinga lokushisa

Ngokuhlola inkomba yamafutha weyunithi yokusebenza kwamafutha, kutholakala ukuthi inkomba yokuthambekela kwe-varnish 22.4 iphezulu, futhi izinga lokungcola liphezulu (bheka Ithebula 2).Futhi inkomba yokuthambekela kwe-varnish ephezulu, i-varnish ingase ibangele ukwakheka kwe-varnish ekuqoqweni kwe-shaft adhesion, ngaleyo ndlela kunciphise igebe lefilimu kawoyela, kukhuphule ukungqubuzana, ukuholela okungathi sína ku-shaft yokushabalaliswa kokushisa okubi, ukukhuphuka kwezinga lokushisa kwe-shaft, ukusheshisa kwe-oxidation kawoyela.Ngesikhathi esifanayo, ngenxa yokungcola okuphezulu emafutheni, i-varnish izonamathela kwezinye izinhlayiya ezingcolile, zenze umphumela wokugaya ukuze kuthuthukiswe ukugqoka kwemishini.

Ukuhlaziya ukuguquguquka kwesihlahla esithwalayo, kungase kube i-varnish ekhiqizwa ku-lubricant yeyunithi, i-varnish ekugcineni igxile esihlahleni esithwalayo,

Ibangela izinga lokushisa eliyinhloko legobolondo elithwalayo ukuthi liguquguquke futhi likhuphuke.

Isizathu se-varnish: eyokuqala yi-oxidation yemvelo yemikhiqizo yamafutha.I-oxidation kawoyela we-Hydrocarbon ilandela indlela yamahhala yokusabela kwe-radical chain reaction, i-oxidation ye-carboxylic acid, i-esters, i-alcohol peroxide, lawa ma-peroxides aqhubeka nokusabela kwe-condensation ye-polymer enesisindo samangqamuzana aphezulu, ancibilikisiwe esimweni sikawoyela, lapho edlula izinga lokuqedwa kwamafutha okugcoba, amafutha okugcoba. egcwele, imikhiqizo ewohlokayo ngokweqile izokwakha i-varnish.Okwesibili, amafutha "micro-combustion" nawo azosheshisa ukwakheka kwe-varnish.Ngaphansi kwezimo ezijwayelekile, inani elithile lomoya (<8%) lichithwa emafutheni okugcoba.Uma umkhawulo wokuhlakazeka weqiwe, umoya ongena kuwoyela usuke usemafutheni ngokumiswa.Lapho uwoyela wokugcoba uphonswa endaweni yokucindezela okukhulu ukusuka endaweni enengcindezi ephansi, lawa mabhamuza amancane amiswe kuwoyela acindezelwa kakhulu, okuholela ekwenyukeni okusheshayo kwezinga lokushisa ku-microarea kawoyela, kwesinye isikhathi kuze kufike ku-1100 ℃, okuholela ku-adiabatic " microcombustion” endaweni encane kawoyela, ekhiqiza into encane kakhulu engancibiliki.Lezi zinto ezingancibiliki ziyi-polar, azinzile ngokwedlulele, futhi kulula ukunamathela endaweni yensimbi ukuze zenze i-varnish.Futhi "inhlansi kagesi" emafutheni nayo iyisizathu esibalulekile sokwakheka kwe-varnish, endaweni enkulu yokushisa ephezulu, ukucindezela okukhulu, isivinini esikhulu, imvelo, lapho amafutha ngemuva kwegebe elincane kakhulu njenge-valve core, isihlungi sokunemba, ukungqubuzana kwamangqamuzana. phakathi kukagesi omile, ukukhishwa ngokuzumayo, okuqoqwe ngemva kwezinkulungwane zamadigri okushisa aphezulu, kulula futhi ukukhiqiza i-varnish.Ngokuvamile, i-oxidation yomkhiqizo kawoyela iyinqubo ehamba kancane, futhi umkhiqizo wamafutha we-adiabatic "micro-combustion" isizukulwane sejubane lokuvanisha uyashesha kakhulu.Okokugcina, njengenani elinganele lamafutha okugcoba, imvume yokufakwa kweyunithi incane kakhulu, ukusatshalaliswa komthwalo wegobolondo le-axle elingalingani nakho kuzosheshisa ukukhiqizwa kwevarnish.Lapho ukugcwala kwe-polar oxide kulawa okothambisa kufinyelela ekugcwaleni ngomfutho othile wokushisa othize, imvula endaweni engaphakathi yensimbi, ngezinga elithile, kuzothinta ukushabalaliswa kokushisa kwesihlahla esithwalayo futhi kuholele ekuguquguqukeni noma ekukhuphukeni kwezinga lokushisa lesihlahla esithwalayo. .

 3.2 Rarulula inkinga yokwenyuka kwezinga lokushisa ku-shaft

Ngokuguquguquka kwezinga lokushisa legobolondo, gwema ukuvalwa okungahleliwe, ngaphakathi kweqembu kanye namabhizinisi embonini yamakhemikhali amalahle aphenya i-adsorption ye-electrostatic, ukushaja okulinganiselwe, i-resin adsorption, imvula ephansi yokushisa, ukuhlunga ngomshini kanye nomphumela wokuhlunga kwe-varnish kanye nesithunzi semakethe, ekugcineni bakhethe i-W VD electrostatic adsorption. + i-resin adsorption le mishini ye-varnish eyinhlanganisela.Ngokusebenzisa i-electrostatic adsorption ukuxazulula i-varnish ene-precipitated, ngokusebenzisa i-resin adsorption ukuxazulula i-varnish encibilikile, ukuze kuxazululwe ngokuphelele inkinga yokukhuphuka kokushisa kwesihlahla esithwalayo okubangelwa ukuvanisha, ngaphezu kwalokho, ekukhishweni kwe-varnish okungavamile, kodwa futhi ukuxazulula inkinga inkinga yokungcoliswa kwamafutha.

3.2.1 Umgomo wokusebenza kanye nomdwebo wohlelo lwe-electrostatic adsorption technology-Susa ivarnish yesimo sokuwa

Isimiso se-electrostatic adsorption sisebenzisa i-electrophoresis kanye namandla e-dielectrophoresis akhiqizwa inkambu ye-electrostatic ephezulu, Yenza i-Polarize izinhlayiya ezingcolile emafutheni futhi ibonise ugesi omuhle noma ongemuhle, ngokulandelana, izinhlayiya zikagesi ezinhle nezingezinhle zibhukuda ziye ngakubo ama-electrode ngaphansi kwesenzo se-ultra-high voltage electric field, Izinhlayiya ezingathathi hlangothi zinyakaziswa ukugeleza kwezinhlayiya ezikhokhisiwe, Ekugcineni, zonke izinhlayiya zakhangiswa kumqoqi oxhunywe ku-electrode, Susa ngokuphelele ukungcola emikhiqizweni kawoyela, Umgomo wokukhanyiswa kwe-electrostatic. ubuchwepheshe busetshenziselwa ukwenza i-polarity ebuthakathaka yomkhiqizo kawoyela ngemuva kokuhlanzwa, Ukukhumula njalo ukungcola okunamathiselwe ezindongeni zethangi, amapayipi, izingxenye ze-valve, Kuhlelo lwamapayipi ahlanzekile, Ukwenza ngcono ukuhlanzeka kwalo lonke uhlelo lukawoyela, Nikeza isiqinisekiso esithembekile. ukusebenza okuzinzile kweyunithi.

3.2.2 Umgomo wokusebenza kanye nomdwebo wohlelo lwe-ion resin adsorption technology-ukususwa kwevarnish encibilikile

Ubuchwepheshe be-Ionic resin bungasusa i-varnish encibilikayo.Uma iyunithi isebenza, ngenxa yokuthi izinga lokushisa likawoyela liphezulu, ivanishi encibilikisiwe (ebizwa nangokuthi i-varnish embryo) ibekezeleleka kakhulu, akulula ukuyisusa ngobuchwepheshe be-electrostatic adsorption, futhi ubuchwepheshe be-ion resin adsorption bungasusa ukungcola okuncibilikayo emafutheni.I-ion exchange resin yakhiwa ikakhulukazi izingxenye ezimbili: i-polymer skeleton kanye neqembu lokushintshisana nge-ion.Umgomo we-adsorption uboniswa esithombeni esingezansi.Iqembu lokushintshana lihlukaniswe laba ingxenye engaguquki kanye nengxenye esebenzayo, eboshwe ku-matrix ye-polymer futhi ayikwazi ukuhamba ngokukhululekile ukuze ibe ama-ion amisiwe;ingxenye esebenzayo kanye nengxenye engaguquki kuhlanganiswe ibhondi ye-ion ukuze kube ama-ion ashintshanayo.Ama-ion angaguquki nama-ion asebenzayo anezindleko eziphambene, ngokulandelana.Esixazululweni, ingxenye esebenzayo ihlukanisa ibe ama-ion ahambayo amahhala, ishintshana neminye imikhiqizo ewohlokayo enenkokhiso efanayo esixazululweni, ehlanganiswa nama-ion angaguquki futhi ikhangiswe ngokuqinile eqenjini lokushintshana, ukuze kukhishwe i-varnish encibilikayo endaweni. isixazululo futhi wehlise inani le-MPC.

3.3 Susa i-ukuvenishaumphumela

Isihlungi se-varnish sifakiwe futhi sasetshenziswa.Njengamanje, izinga lombala wamafutha liye lathuthukiswa kakhulu ngemva kwenyanga eyodwa yokuhlunga.Ngokuhlaziywa nokuhlaziywa kwedatha yokutholwa kwangaphandle, inkomba yokuthambekela kwe-varnish yamafutha iyancishiswa isuka ku-22.4 iye ku-2.5, izinga lokungcola liyancishiswa lisuka ku-NAS9 liye ku-7, futhi inkomba yenani le-asidi iyancipha isuka ku-0.064 iye ku-0.048.

Ithebula 2: I-M PC kanye nenkomba yokuhlanzeka ngaphambi kokuhlunga

Ithebula 3: I-M PC ehlungiwe kanye nenkomba yenhlanzeko

Ithebula 4: Inkomba yenani le-asidi ngaphambi kokuhlunga

Ithebula 5: Inkomba yenani le-asidi ehlungiwe

Umfanekiso 2: Ukugqama kombala ngaphambi nangemuva kokuhlunga

Umfanekiso 3: Izinga lokushisa ngemuva kokuhlunga uwoyela weyunithi (izinga lokushisa lehla laya ku-67.1℃)

4. Izinzuzo zezomnotho ezikhiqizwayo

Ngokusebenzisa i-electrostatic adsorption precipitation ye-varnish yombuso, ngokusebenzisa i-resin adsorption i-varnish encibilikisiwe, ukuze kuxazululwe ngokuphelele ukushisa kwesihlahla esithwalayo nokuguquguquka kokudlidliza okubangelwa ukuvenisha, ukugwema ukulahlekelwa okukhulu kokuphumayo (ukulahlekelwa kwansuku zonke kokuphuma kwe-urea okungamathani angu-1700, ama-yuan ayizigidi ezingu-3; uma iyi-rotor yokushintsha isilinda evulekile, isikhathi okungenani izinsuku ezi-3, izigidi ezingu-9), futhi ukudlidliza kwezinga lokushisa kwegobolondo kukhuphule ukujikeleza nokuvala izingxenye okubangelwa ukulahleka kwezingxenye eziyisipele (ukulahlekelwa phakathi kwezigidi ezingu-10-5 zamayuan).

Iyunithi yokususa i-varnish ye-WSD ifakiwe futhi yasetshenziswa.Njengamanje, izinga lombala wamafutha liye lathuthukiswa kakhulu ngemva kwenyanga eyodwa yokuhlunga.Ngokuhlaziywa nokuhlaziywa kwedatha yokutholwa kwangaphandle, inkomba yokuthambekela kwe-varnish yamafutha iyancishiswa isuka ku-22.4 iye ku-2.5, izinga lokungcola liyancishiswa lisuka ku-NAS9 liye ku-7, futhi inkomba yenani le-asidi iyancipha isuka ku-0.064 iye ku-0.048.Ngaphezu kwalokho, iyunithi iqukethe imiphongolo yemikhiqizo kawoyela engaba ngu-150, ngokukhishwa kwe-varnish ukuhlunga okuphezulu okuphezulu uwoyela wafinyelela ngokugcwele inkomba efanelekile, ukonga izindleko zokushintsha uwoyela kanye nezindleko zokulahla uwoyela, isamba esingu-400,000 RMB.

5 Isiphetho

Ngenxa yokushisa okuphakeme kwesikhathi eside, ukucindezela okukhulu kanye nezimo zokusebenza zejubane eliphezulu zesistimu yokugcoba yeyunithi enkulu, isivinini se-oxidation samafutha siyashesha, inkomba ye-varnish iyanda, futhi okuqukethwe kwe-gelatin kuyanda.Ukungcola okuthambile kunqwabelana ohlelweni lweyunithi enkulu, okuthinta ukunemba kwesistimu yokulawula isivinini kanye nokusebenza okuvamile kweyunithi.Kulula ukuholela ekushintshashintsheni kweyunithi noma ngisho nokuvala shaqa okungahleliwe.I-varnish glue efakwe endaweni ye-bearing bush izophinde ikhulise izinga lokushisa le-bearing bush, futhi ukunamathela kwe-varnish nezinhlayiya eziqinile kuzophinde kwandise ukugqokwa kwemishini.Iyunithi yokususa i-varnish ingaqhubeka nokuthuthukisa ikhwalithi kawoyela wokugcoba weyunithi, iqinisekise ukusebenza okuzinzile kwesikhathi eside kwamayunithi amakhulu, yandise umjikelezo wesevisi kawoyela wokugcoba, ithuthukise indawo yokusebenza yesistimu, futhi yehlise izindleko zokuthenga zokugcoba. amafutha.