Babban Abubuwan da ke cikin Nacelle a cikin Injin Turbin Iska
A tsarin injinan iska na zamani, nacelle shine "babban gida" wanda ke ɗauke da mafi yawan mahimman kayan aikin injiniya da na lantarki. Yana nan a saman hasumiyar, kai tsaye a bayan na'urar juyawa da cibiya (gidan ruwan wukake). A cikin nacelle, makamashin iska da ke juya ruwan wukake ana watsa shi, ana sarrafa shi, ana mayar da shi makamashin lantarki, sannan a rarraba shi zuwa ga grid. Saboda matsayi mai girma da kuma fuskantar yanayi mai tsanani, nacelle kuma an tsara shi don ya zama tsari mai ƙarfi, mai rufewa tare da cikakken tsarin tsaro da sa ido.
Ga manyan abubuwan da ke cikin injin turbin iska, tare da ayyukansa da rawar da yake takawa wajen tabbatar da cewa injin turbin yana aiki yadda ya kamata, lafiya da kuma inganci.
1. Tsarin Nacelle (Allon gado/Firam)
Babban ɓangaren nacelle shine babban firam ko farantin gado. Wannan shine tsarin tallafi wanda ke aiki a matsayin "tushe" don ɗora akwatin gearbox, janareta, tsarin birki, manyan bearings, da sauran kayan tallafi daban-daban. Dole ne farantin gado ya iya jure nauyin da ba ya canzawa (nauyin sashi) da nauyin da ke canzawa (girgiza, bambancin karfin juyi, da kuma girgizar iska).
Kayan galibi ƙarfe ne mai ƙarfi ko ƙarfe mai siminti, tare da ƙira wanda ke la'akari da tauri don abubuwan da aka sanya su kasance daidai kuma kada su fuskanci rashin daidaito wanda zai iya ƙara lalacewa.
2. Babban Shaft da Babban Bearing
Ana canja wutar lantarki daga na'urar juyawa zuwa babban shaft. Wannan shaft tana juyawa da ƙarancin gudu amma tana ɗauke da ƙarfin juyi mai yawa. Don tallafawa juyawar shaft, ana amfani da babban bearing. Wasu ƙira suna da babban bearing guda ɗaya, yayin da wasu ke amfani da manyan bearing guda biyu don ƙara kwanciyar hankali.
Matsayin bearings yana da matuƙar muhimmanci domin gazawar bearings na iya haifar da dogon lokacin aiki da tsadar gyara. Saboda haka, tsarin shafawa da kuma sa ido kan zafin jiki/girgiza a wannan yanki yawanci suna da tsauri sosai.
3. Akwatin Gear (Akan injinan turbines tare da Tsarin Geared)
Yawancin injinan injinan iska suna amfani da akwatin gear don ƙara saurin juyawa daga shaft mai jinkirin juyawa (misali, 10-20 rpm) zuwa babban gudun da janareta ke buƙata (wanda zai iya kaiwa daga ɗaruruwa zuwa dubban rpm, ya danganta da nau'in janareta). Akwatin gear yana ɗaya daga cikin abubuwan da suka fi rikitarwa a cikin nacelle, wanda ya ƙunshi jerin giya (shafts na duniya da/ko masu layi ɗaya), bearings, da tsarin shafawa.
Duk da haka, ya kamata a lura cewa akwai kuma injinan turbines masu tuƙi kai tsaye waɗanda ba sa amfani da akwatin gear. A cikin wannan ƙira, na'urar rotor ta fi haɗa kai tsaye da janareta mai girman diamita wanda ke juyawa da ƙarancin gudu. Fa'idar tuƙi kai tsaye ita ce yana rage adadin abubuwan juyawa da yuwuwar lalacewar akwatin gear, amma tsarin janareta da tsarin juyawa galibi suna da girma da tsada.
4. Generator
Janareta wani abu ne da ke canza makamashin injiniya zuwa makamashin lantarki. Nau'in janareta ya bambanta, ciki har da:
– DFIG (Janareta Mai Sanya Ido Biyu) wanda aka saba amfani da shi a cikin injinan gearbox, yana ba da damar yin aiki mai canzawa tare da masu sauya sikeli kaɗan.
– PMSG (Permanent Magnet Synchronous Generator) wanda ake amfani da shi a cikin injin kai tsaye da wasu ƙira na zamani, tare da ingantaccen aiki da kyakkyawan sarrafawa.
Janareta yana samar da wutar lantarki mai wasu halaye (ƙarfin lantarki, mita) wanda sannan tsarin lantarki na wutar lantarki ke tsara shi kafin a rarraba shi.
5. Tsarin Fitilar (Tsarin Fitilar)
Tsarin siffa yana daidaita kusurwar ruwan wukake dangane da alkiblar iska. Yana ɗaya daga cikin mahimman tsarin sarrafawa don:
- Yana inganta kama makamashi a saurin iska mai ƙarancin ƙarfi zuwa matsakaici.
– Yana iyakance wutar lantarki da kaya a saurin iska mai yawa.
– Dakatar da injin turbine (kashewa) ta hanyar juya ruwan wukake zuwa matsayin gashin fuka-fuki (rage ɗagawa).
Tsarin bugun zai iya zama na hydraulic ko na lantarki (ƙaramin mota da akwatin gear a cikin cibiyar). Duk da cewa mai kunna bugun yana cikin cibiyar, ikon sarrafawa, samar da wutar lantarki, da haɗin kai gabaɗaya suna da alaƙa da tsarin da ke cikin nacelle, gami da tsarin sarrafawa da tushen wutar lantarki na madadin.
6. Tsarin Yaw
Domin tabbatar da cewa na'urar juyawa tana fuskantar iska koyaushe, nacelle yana da tsarin yaw wanda ke ba da damar nacelle ya juya sama da hasumiyar. Wannan tsarin yawanci ya ƙunshi:
– Bearing na Yaw: babban bearing mai siffar zobe wanda ke aiki a matsayin "turntable" tsakanin hasumiya da nacelle.
– Yaw drive/motor: injinan tuƙi waɗanda ke juya nacelle bisa ga umarnin sarrafawa.
– Birki Mai Yaw: birki don kiyaye nacelle a cikin kwanciyar hankali.
Tsarin sarrafa yaw yana amfani da bayanai daga na'urar auna iska da kuma na'urar auna anemometer. Manufar yaw ita ce rage daidaiton daidaito don haɓaka samar da makamashi da kuma sarrafa nauyin tsarin.
7. Tsarin Birki (Tsarin Birki)
Injinan injinan iska suna da hanyoyi daban-daban na birki don aminci. Gabaɗaya, waɗannan sun haɗa da:
– Birki mai aiki da iska: galibi ta hanyar tsarin bugun, ana juya ruwan wukake don rage matsin lamba da kuma dakatar da na'urar juyawa.
– Birki na inji (birki na diski): galibi suna kan shaft mai sauri kusa da akwatin gear/janerata. Waɗannan birki galibi ana amfani da su azaman birkin ajiye motoci ko don yanayi na gaggawa, maimakon don ci gaba da birki.
Tsarin birki yana da mahimmanci don fuskantar yanayi mai tsanani, gyarawa, ko gazawar sarrafawa.
8. Tsarin Man Shafawa da Na'urar Haɗa Jiki
A cikin nacelle akwai tsarin tallafi don haka abubuwan da ke juyawa suna aiki a cikin yanayi mafi kyau, gami da:
- Tsarin shafawa mai don akwatin gearbox: famfo, matattara, mai sanyaya, da firikwensin ingancin mai.
– Tsarin mai don wasu bearings da yaw bearings.
– Tsarin hydraulic (idan an yi amfani da shi), misali don hydraulic pitch ko takamaiman actuators.
Man shafawa mai kyau yana rage gogayya, zafin jiki, da lalacewa, ta haka yana tsawaita rayuwar sassan.
9. Tsarin Sanyaya
Abubuwa kamar janareta, na'urar canza wutar lantarki, da akwatin gear na iya samar da zafi mai yawa. Saboda haka, nacelle yana da tsarin sanyaya wanda zai iya haɗawa da:
- Sanyaya iska (iska-zuwa-iska).
– Sanyaya ruwa, misali a wasu na'urori masu canzawa ko janareta.
- Mai musayar zafi da fanka don kiyaye zafin aiki a cikin iyaka mai aminci.
Rashin ingantaccen tsarin kula da zafi na iya rage inganci da kuma hanzarta lalacewar rufin lantarki da man shafawa.
10. Tsarin Lantarki da Kula da Wutar Lantarki (Kabad ɗin Canjawa da Kulawa)
Injinan iska na zamani galibi suna aiki a saurin da ba ya canzawa, suna buƙatar na'urar canza wutar lantarki don daidaita fitowar wutar lantarki don dacewa da grid ɗin. Wannan na'urar tana daidaita ƙarfin lantarki, mita, da ƙarfin lantarki, wanda ke taimakawa wajen biyan buƙatun lambar grid.
A gefe guda kuma, kabad ɗin sarrafawa yana ɗauke da kwamfutar PLC/control, na'urorin kariya, relay, da hanyoyin sadarwa. Tsarin sarrafawa yana sarrafa sautin murya, yaw, farawa/tsayawa, kariya mai yawa, da kuma dabarun aminci. Hakanan yawanci yana da kayan aikin SCADA don sa ido daga nesa, yin rikodin bayanai, da kuma gano cututtuka.
11. Na'urori masu auna sigina: Anemometer, Wind Vane, Vibration, Zafin jiki, da sauransu
Domin injin turbine ya mayar da martani ga yanayin aiki a ainihin lokaci, nacelle yana da na'urori masu auna firikwensin da yawa, kamar:
- Anemometer (gudun iska) da kuma na'urar auna iska (alkiblar iska).
- Na'urori masu auna girgiza a kan akwatin gearbox, janareta da bearings.
- Na'urori masu auna zafin jiki a kan bearings, mai, injinan janareta, da kabad na lantarki.
- Na'urori masu auna matsin lamba da kwarara a cikin tsarin man shafawa/hydraulic.
Ana amfani da bayanan firikwensin don sarrafawa, kuma ƙarin injinan turbines suna amfani da nazarin hasashen don gano yiwuwar gazawa da wuri.
12. Na'urar Canzawa (Tsararraki ya dogara)
A wasu injinan turbines, na'urar transformer tana cikin nacelle; a wasu ƙira, tana cikin hasumiya ko a waje. Na'urar transformer tana ƙara ƙarfin lantarki daga janareta/mai juyawa zuwa matakin da ya fi dacewa da watsa wutar lantarki ta cikin iska, wanda ke haifar da ƙarancin kwararar ruwa da raguwar asarar wutar lantarki.
13. Murfin Nacelle da Tsarin Kare Muhalli
An rufe nacelle da wani murfi wanda ke kare abubuwan da ke cikinsa daga ruwan sama, ƙura, danshi, hazo mai gishiri (na bakin teku), da kuma canjin yanayin zafi mai tsanani. Ya kuma ƙunshi:
– Tsarin sarrafa iska da danshi don rage cunkoso.
- Kariyar walƙiya da aka haɗa tare da layukan ƙasa.
– Tsarin gano gobara da kuma kashe gobara a kan injinan turbine da dama, musamman ga wurare masu haɗari.
Kammalawa
Nacelle shine "kwakwalwa da tsokoki" na injin turbin iska. A ciki, firam ɗin, shaft, bearings, gearbox (idan ya dace), janareta, birki, da tsarin yaw da sarrafawa suna aiki tare a cikin yanayi masu ƙalubale. Bugu da ƙari, man shafawa, sanyaya, firikwensin, masu juyawa, da tsarin kariya suna tabbatar da cewa injin turbin ba wai kawai yana samar da wutar lantarki ba har ma yana kasancewa lafiya, inganci, kuma cikin sauƙi a sa ido.
Fahimtar muhimman abubuwan da ke cikin nacelle yana taimaka mana mu fahimci dalilin da yasa fasahar injinan iska ke ci gaba da bunƙasa: manufar ba wai kawai ita ce ƙara ƙarfi ba, har ma da inganta aminci, sauƙaƙe kulawa, da rage farashin wutar lantarki da iska ke samarwa. Idan kuna so, zan iya ƙara wani sashe na musamman kan bambance-bambancen da ke tsakanin injinan turbine na teku da na teku, ko kuma tattauna zane-zanen kwararar makamashi daga na'urar juyawa zuwa grid.
