Hobaneng Kopano ea ho Bearing e le ea Bohlokoa ho Li-turbine tsa Moea
Turbine ea moea ea sejoale-joale e nang le lisebelisoa tse ngata e hahiloe ho potoloha li-bearings tse mamellang maemo ao boholo ba mechini ea indasteri e sa kopaneng le 'ona: mojaro o tsoelang pele oa potoloho o tsoang moeeng o feto-fetohang, matla a kopaneng a axial le a radial a fetisoang ka mahare a bolelele ba limithara tse 80 kapa ho feta, ho bola ha metsi a letsoai libakeng tse sebelisoang lebōpong la leoatle, le nako ea ts'ebetso e lebelletsoeng ho feta lilemo tse 20 ka thuso e fokolang. Bear ea shaft e kholo e le 'ngoe e ka ba le bophara ba kantle bo fetang limithara tse 3 le boima ba lithane tse 'maloa.
Boleng ba kopano ea pele bo khetholla ka ho toba hore na bearing e sebetsa hantle hakae bophelong bohle boo. Lesale la ho slewing le sa luloang hantle - le kentsoeng ka ho se lekane ha ho kopana, likhatello tsa ka hare, kapa ho se tsitse ho lekaneng - le tla hlahisa mapetso a mokhathala, mafome a feteletseng, le ho phatloha ha litsela tsa mabelo pele ho nako eo bophelo ba moralo oa lona bo neng bo tla e bolela. Turbineng ea lebōpong la leoatle, bearing e kholo e hlōlehileng e bolela crane, fensetere ea tokiso ea libeke tse ngata, le litšenyehelo tsa tlhokomelo tsa lipalo tse hlano ho isa ho tse tšeletseng. Leoatleng la leoatle, ho ka bolela likhoeli tsa tlhahiso e lahlehileng le litekanyetso tse phahameng haholo tsa tokiso.
Ho lekana ha tshitiso — moo lesale la ho jara le entsweng ka boomo le leholo hanyane ha le bapiswa le shaft ya lona ya ho nyalana kapa bore ya ntlo — ke mokgwa wa boenjiniere o tshwarang kopano mmoho mme o fetisetsa torque ntle le difasteners. Ho fihlella ho lekana ho nepahetseng ho hloka katoloso e laolwang ya mocheso, mme ke moo ho futhumatsang ha induction ho bang bohlokwa.
Fisiks ea ho Futhumatsa ka Induction bakeng sa Kopano e Chesang
Ho futhumatsa ka motlakase ha se mohopolo o mocha — ts'ebeliso ea ona ea indasteri e qalile mathoasong a lekholo la mashome a mabeli la lilemo — empa ts'ebeliso ea ona kopanong ea li-bearing e se e rarahane haholo, haholo-holo bakeng sa likarolo tse kholo tse sebelisoang matla a moea. Ho utloisisa fisiks ea motheo ho hlalosa hore na ke hobane'ng ha motlakase o sebetsa hantle ho feta mekhoa e meng e meng ea mocheso ka litekanyo tse kholo.
Ho kenngoa ha motlakase le maqhubu a eddy
Ha motlakase o fapanyetsanang o phalla ka har'a coil ea koporo ea induction, o hlahisa matla a makenete a sisinyehang ho potoloha le ka har'a coil. Ha thepa e tsamaisang motlakase - tšepe, tabeng ea lesale la ho jara - e beoa ka har'a tšimo eo, molao oa Faraday o laela hore phallo ea makenete e fetohang e bake motlakase ka har'a coil. Hobane lesale la ho jara motlakase ke selika-likoe se koetsoeng sa conductive, motlakase ona o khanna maqhubu a motlakase a potolohang ka har'a thepa ka boeona. Tsena ke maqhubu a eddy.
Metsi a metsi a kopana le khanyetso ea motlakase ea tšepe, 'me ho ea ka molao oa pele oa Joule, khanyetso ena e fetola matla a motlakase hore e be matla a mocheso. Ho futhumatsa ho etsahala ka hare ho thepa, eseng holim'a eona ho tsoa mohloling oa mocheso o kantle. Phapang ena ke ea bohlokoa boleng ba sephetho: mocheso o hlahisoa ka bongata le ka ho lekana ho fapana le ho tsamaisoa ka hare ho tsoa mohloling o kantle, o liehang ka tlhaho 'me o sekametse ho li-gradients tsa mocheso.
Tšusumetso ea letlalo le khetho ea makhetlo
Maqhubung a tlase, maqhubu a eddy a kenella ka botebo ho conductor. Maqhubung a phahameng, phello ea letlalo e a thibela lera le sa tebang haufi le bokaholimo. Bakeng sa kopano e chesang ea ho jara - moo sepheo e leng ho futhumatsa karolo e tšekaletseng ea selikalikoe ho fapana le ho tiisa bokaholimo - maqhubu a mahareng a pakeng tsa 1 kHz le 10 kHz hangata a khethoa. Sebaka sena se leka-lekanya botebo ba ho kenella le lebelo la ho futhumatsa, ho netefatsa hore selikalikoe se futhumatsa ka ho lekana ho tloha ka hare ho ea bokaholimong bo ka ntle ntle le ho nts'etsapele li-gradients tsa mocheso tse ka bakang katoloso e fapaneng kapa khatello e setseng.
Katoloso ea mocheso le ho lekana ha tšitiso
Tšepe e na le coefficient ea katoloso ea mocheso ea hoo e ka bang 11–12 × 10⁻⁶ /°CBakeng sa lesale la ho jara le nang le bophara ba ka hare ba 2,000 mm, ho futhumatsa lesale ho tloha ho 20°C ho isa ho 120°C — ho phahama ha 100°C — ho hlahisa katoloso ea radial ea hoo e ka bang:
ΔD = D × α × ΔT = 2000 mm × 12×10⁻⁶ × 100 = 2.4 mm
Sena se lekane ho feta ho thellisa lesale holim'a shaft e nang le ho lekana ha tšitiso ea 0.3 mm, ka moeli o phutholohileng oa kopano. Mocheso o reriloeng oa 80–120°C o bolokoa ka boomo ka tlase ho 150°C - moeli oo botsitso ba boholo le ho thatafala ha tšepe ea ho jara li qalang ho senyeha ho oona ka lebaka la liphetoho tsa sebopeho sebopehong se senyenyane sa martensitic. Sefuthumatsi sa induction se leka-lekaneng hantle se tšoara lesale hantle ka har'a fensetere ena ea mocheso.
Se Etsang Hore Mekhoa ea ho Induction e Pholisitsoeng ke Moea e Fapane
Lisebelisoa tse kholo tsa ho futhumatsa tse sebelisang induction hangata li sebelisa lipotoloho tsa ho pholisa metsi ho laola mojaro oa mocheso ho lisebelisoa tsa motlakase le coil ka boeona. Ho pholisa metsi hoa sebetsa empa ho eketsa meralo ea motheo - mela ea phepelo ea coolant, lipompo, matamo a metsi, mehato ea thibelo ea ho lutla, le kalafo ea lik'hemik'hale - e leng se thatafatsang ho kenngoa ha lisebelisoa litsing tsa tlhahiso le ho etsa hore tšebeliso ea masimo e se sebetse.
Mekhoa ea ho futhumatsa ea induction e pholileng ka moea, joalo ka ha e sebelisoa ke KETCHAN Bakeng sa lits'ebetso tsa ho bea turbine ea moea, tlosa potoloho ea metsi ka botlalo. Kopano ea coil le likarolo tsa motlakase li entsoe ka ho pholisa moea o qobelloang ka botlalo, ho sebelisoa lifene tse sebetsang hantle ho boloka mocheso oa likarolo ka har'a meeli e sireletsehileng ea ts'ebetso. Tsoelo-pele theknolojing ea module ea motlakase ea IGBT le taolo ea mocheso oa coil li entse hore litsamaiso tse pholisitsoeng ke moea li sebetse hantle ha motlakase o tsoa ho lekana bakeng sa mehele ea ho bea e fihlang ho limithara tse 4 ka bophara.
Melemo e sebetsang bakeng sa tlhahiso ea liturbine tsa moea e bohlokoa haholo. Litsamaiso tse pholisitsoeng ke moea li ka tsamaisoa lipakeng tsa liteishene tsa kopano ntle le ho khaola liphaephe tsa coolant. Li hloka nako e nyane ea ho qala tšebetso. Li felisa kotsi ea ho kena ha metsi kapa tšilafalo ea coolant haufi le likarolo tse entsoeng ka mochini o nepahetseng. 'Me kaha ha li hlahise metsi a litšila, li na le tšusumetso e nyane tikolohong ho feta mekhoa e meng ea ho hlapa ka oli.
Moralo oa likhoele bakeng sa masale a bophara bo boholo
Bakeng sa di-bearing tsa ho slewing tse nang le bophara ba kantle ho dimithara tse 2-4, khoele ya induction e entswe jwalo ka khoele ya lesale e arohaneng - sebopeho se arohaneng, se potolohang se potolohang sedikadikwe sa ho bea. Khoele e entswe hore e dule haufi le bokahodimo ba kantle kapa ba kahare ba lesale la ho bea, e leng se eketsang bokgoni ba ho kopanya makenete. Maikutlo a mocheso ho tswa ho di-sensor tse ngata tsa thermocouple tse behilweng ho potoloha lesale a netefatsa hore sistimi ya taolo e ka lefella phapang efe kapa efe e potolohang ya sekgahla sa ho futhumatsa, e netefatsa hore lesale le fihlella mocheso o tshwanang pele kopano e tswela pele.
Mabaka a Supileng a Bahlahisi ba Khethang Tlhahiso ho Feta Mekhoa e Meng
Turbine ea moea ea sejoale-joale e nang le lisebelisoa tse ngata e hahiloe ho potoloha li-bearings tse mamellang maemo ao boholo ba mechini ea indasteri e sa kopaneng le 'ona: mojaro o tsoelang pele oa potoloho o tsoang moeeng o feto-fetohang, matla a kopaneng a axial le a radial a fetisoang ka mahare a bolelele ba limithara tse 80 kapa ho feta, ho bola ha metsi a letsoai libakeng tse sebelisoang lebōpong la leoatle, le nako ea ts'ebetso e lebelletsoeng ho feta lilemo tse 20 ka thuso e fokolang. Bear ea shaft e kholo e le 'ngoe e ka ba le bophara ba kantle bo fetang limithara tse 3 le boima ba lithane tse 'maloa.
Boleng ba kopano ea pele bo khetholla ka ho toba hore na bearing e sebetsa hantle hakae bophelong bohle boo. Lesale la ho slewing le sa luloang hantle - le kentsoeng ka ho se lekane ha ho kopana, likhatello tsa ka hare, kapa ho se tsitse ho lekaneng - le tla hlahisa mapetso a mokhathala, mafome a feteletseng, le ho phatloha ha litsela tsa mabelo pele ho nako eo bophelo ba moralo oa lona bo neng bo tla e bolela. Turbineng ea lebōpong la leoatle, bearing e kholo e hlōlehileng e bolela crane, fensetere ea tokiso ea libeke tse ngata, le litšenyehelo tsa tlhokomelo tsa lipalo tse hlano ho isa ho tse tšeletseng. Leoatleng la leoatle, ho ka bolela likhoeli tsa tlhahiso e lahlehileng le litekanyetso tse phahameng haholo tsa tokiso.
Ho lekana ha tshitiso — moo lesale la ho jara le entsweng ka boomo le leholo hanyane ha le bapiswa le shaft ya lona ya ho nyalana kapa bore ya ntlo — ke mokgwa wa boenjiniere o tshwarang kopano mmoho mme o fetisetsa torque ntle le difasteners. Ho fihlella ho lekana ho nepahetseng ho hloka katoloso e laolwang ya mocheso, mme ke moo ho futhumatsang ha induction ho bang bohlokwa.
Ho hlahisa tlhahiso khahlanong le ontong khahlanong le oli ea ho hlapela: Papiso
| Criterion | Induction e Pholisitsoeng ke Moea | Onto ea Liindasteri | Bath Bath | Lelakabe le Bulehileng |
|---|---|---|---|---|
| Ho nepahala ha taolo ea mocheso | ±5°C (sekotjana se koetsoeng) | ±15–30°C | ±10–20°C | E sa laoleheng |
| Ho tšoana ha ho futhumatsa | E ntle haholo (bophahamo ba modumo) | E itekanetseng (ka hare ho bokaholimo) | E ntle (haeba e ajoa) | futsanehileng |
| Nako ea ho fihlela mochesong (lesale le leholo) | 15-40 mets | Lihora tsa 2-6 | Lihora tsa 1-3 | E feto-fetohang, e kotsi |
| Boholo bo boholo ba ho jara bo sebetsang | 4 m+ OD | E lekanyelitsoe ke boholo ba onto | E lekanyelitsoe ke boholo ba bate | Ha ho na moedi o sebetsang |
| Tšireletseho ea opereishene | ✔ Holimo | e leka-lekaneng | ✘ E tlase | ✘ E tlase haholo |
| Mothati oa tikoloho | ✔ E nyenyane | E itekanetseng (matla) | ✘ Ho na le oli e ngata (e silafetseng) | ✘ Ho chesa haholo (ho chesa) |
| Ho tlosoa ha makenete kamora kopano | ✔ E kopantsoe | ✘ Ha e fumanehe | ✘ Ha e fumanehe | ✘ Ha e fumanehe |
| Ho pheta-pheta / ho khoneha ho etsa lenaneo | ✔ E felletseng | Khethollo | ✘ E tlase | ✘ Ha ho letho |
| Tšebeliso ea selefouno / tšimong | ✔ Ee | ✘ Che | thata | Ho ka etsahala empa ho kotsi |
Likopo tse Atolositsoeng
Kopano e kholo ea ho jara theko
Ho kenya lesale la ho slewing ka pitch le yaw
Kopano ea Gearbox bearing le gear
Kopano ea rotor ea jenereithara le kopano ea ho kopanya
Ho tlosoa ha libere nakong ea ho lokisa
Ho tiisa pele ho tension ea flange ea tora
