Abubuwan da ke cikin Nacelle da Ayyukansu a cikin Tashoshin Wutar Lantarki na Iska.
A cikin tashar samar da wutar lantarki ta iska (PLTAngin), ɗaya daga cikin mafi mahimmanci—amma galibi ana watsi da ita—sassan shine nacelle. Nacelle shine "gidan injin" wanda yake a saman hasumiyar injin turbin iska, kai tsaye a bayan na'urar rotor (ruwaye). A cikin nacelle akwai manyan abubuwan da ke canza kuzarin motsi na iska zuwa makamashin lantarki wanda aka shirya don rarrabawa zuwa grid. Wannan labarin ya yi bayani a takaice amma cikakke game da sassan nacelle, tare da aikin kowane ɓangare na tabbatar da cewa injin turbin iska yana aiki yadda ya kamata, lafiya, kuma amintacce.
Menene Nacelle?
A taƙaice dai, nacelle wani abu ne mai rufin iska wanda ke kare tsarin injina da wutar lantarki na injinan injinan iska. Saboda yana da tsawon mita goma zuwa ɗaruruwan sama da matakin ƙasa kuma yana fuskantar yanayi mai tsanani, an ƙera nacelle don ya zama mai ƙarfi, mai jure tsatsa, kuma mai sauƙin isa gare shi don gyarawa. Haka kuma an ƙera shi don rage hayaniya da rage matsalolin iska.
A cikin nacelle, akwai jerin abubuwan da aka haɗa, waɗanda suka haɗa da shaft, gearbox, janareta, birki, da tsarin sarrafawa. Duk suna aiki tare don tabbatar da cewa injin turbin zai iya aiki a cikin saurin iska mai yawa, daga mafi ƙarancin iyaka zuwa mafi girman iyaka mai aminci.
1. Allon gado (Babban Tsarin Nacelle)
Faranti shine babban tsarin firam inda ake sanya kayan aiki masu nauyi kamar akwatin gear, janareta, da shaft. Faranti yana tallafawa lodin da ke tsayawa da ƙarfi wanda ke faruwa sakamakon juyawar rotor, iska mai ƙarfi, da girgizar injin.
Babban ayyuka:
– Yana aiki a matsayin tushen injiniya na abubuwan nacelle.
– Kula da daidaiton shafts da sassan watsawa.
– Yana rage haɗarin gajiyar kayan aiki saboda girgiza.
Idan babu wani abu mai ƙarfi a kan gado, kayan ciki suna iya yin kuskure, wanda zai iya haifar da gazawar bearing ko lalacewar gearbox.
2. Babban Shaft
Babban shaft yana haɗa na'urar juyawa (cibiya da ruwan wukake) zuwa tsarin watsawa a cikin nacelle. Lokacin da ruwan wukake ke juyawa a cikin iska, babban shaft ɗin shi ma yana juyawa, yana aika da babban ƙarfin juyi zuwa akwatin gear ko kai tsaye zuwa janareta (idan akwai injinan juyawa kai tsaye).
Babban ayyuka:
- Yana aika karfin juyi daga rotor.
– Ya zama wani abu na injiniya da ke haɗa tsarin iska da tsarin samar da wutar lantarki.
Babban sandar yawanci tana amfani da kayan ƙarfe masu ƙarfi kuma an sanya mata manyan bearings don jure ƙarfin radial da axial.
3. Babban Bearing
Babban bearing shine bearing ɗin da ke tallafawa babban shaft. Wannan bangaren yana da matuƙar muhimmanci domin yana tallafawa nauyi mai yawa kuma yana tabbatar da santsi da kwanciyar hankali na juyawar shaft.
Babban ayyuka:
– Yana rage gogayya da kuma sassauta juyawar shaft.
- Yana jure wa haɗakar kaya (radial da axial) saboda iska.
– Yana rage girgizar da ke yaɗuwa zuwa wasu sassan jiki.
Babban gazawar bearing sau da yawa yana haifar da babban lokacin aiki saboda maye gurbin yana da wahala kuma yana buƙatar babban crane.
4. Akwatin gear
A cikin injinan iska da yawa na zamani, na'urar juyawa tana juyawa a hankali (misali, 10-20 rpm). A halin yanzu, janareto gabaɗaya suna aiki mafi kyau a lokacin rpm mafi girma. Nan ne akwatin gear ya fara aiki: yana ƙara saurin juyawa na babban shaft zuwa shaft mai sauri.
Babban ayyuka:
– Ƙara ƙarfin rpm don dacewa da buƙatun janareta.
- Yana isar da wutar lantarki ta injina daga na'urar juyawa zuwa janareta yadda ya kamata.
Duk da haka, akwatin gear ɗin shima wani ɓangare ne da ke buƙatar kulawa mai yawa saboda yana aiki ƙarƙashin nauyin da ke canzawa kuma yana buƙatar man shafawa mai kyau.
5. Shaft mai sauri
Bayan akwatin gear ya ƙara ƙarfin rpm, ana canja wutar zuwa shaft mai saurin gudu. Wannan shaft yana juyawa da sauri kuma yawanci yana ɗaukar birkunan injina (birkunan diski) kafin janareta.
Babban ayyuka:
- Yana aika juyawa mai sauri daga akwatin gear zuwa janareta.
– Ya zama wurin haɗa firikwensin birki da juyawa.
Saboda suna juyawa da sauri, haɗarin zafi da lalacewa yana ƙaruwa don haka ingancin bearings da man shafawa yana da matuƙar muhimmanci.
6. Generator
Janareta wani bangare ne da ke canza makamashin injiniya zuwa makamashin lantarki ta hanyar amfani da na'urar lantarki. Akwai nau'ikan janareta da dama a cikin injinan iska, kamar janareta mai amfani da wutar lantarki sau biyu (DFIG) ko janareta mai aiki da wutar lantarki na dindindin (a cikin injin kai tsaye).
Babban ayyuka:
– Samar da wutar lantarki daga juyawar injina.
- Yana samar da fitarwa ta lantarki wanda sannan ake sarrafa shi ta hanyar na'urar lantarki mai canzawa/iko.
Aikin janareta yana da matuƙar tasiri ta hanyar kwanciyar hankali na juyawa, sanyaya, da kuma ingancin tsarin sarrafa wutar lantarki.
7. Tsarin Birki
Injinan iska suna buƙatar tsarin birki don gaggawa, gyarawa, ko lokacin da saurin iska ya yi yawa. Yawanci, wannan ya haɗa da haɗakar birki na iska (ta hanyar sarrafa bugun ruwa akan ruwan wukake) da kuma birki na inji (birkin diski akan shaft mai saurin gudu).
Babban ayyuka:
– A dakatar da injin turbin lafiya idan akwai gaggawa.
– Yana tsayar da injin turbin yayin da ake gyara shi.
– Yana rage haɗarin yin gudu fiye da kima wanda ke lalata tsarin.
Birki na inji yawanci ba shine babban birki ba yayin aiki na yau da kullun, amma a maimakon haka shine tallafi bayan an yi amfani da shi don rage karfin juyi.
8. Tsarin Yaw
Dole ne injinan iska su fuskanci iska domin ta yi aiki yadda ya kamata. Tsarin yaw wani tsari ne da ke juya nacelle a saman hasumiyar ta yadda na'urar juyawa za ta fuskanci iska koyaushe.
Abubuwan da aka saba amfani da su na yaw:
– Yaw bearing (babban juyi bearing).
– Injinan Yaw da ƙananan akwatin gearbox don juya nacelle.
– Birki na Yaw don kullewa.
Babban ayyuka:
– Inganta alkiblar injin turbin zuwa ga iska.
- Yana rage nauyin da ba shi da daidaito a kan ruwan wukake da hasumiya.
– Ƙara samar da makamashi.
9. Tsarin Fitilar (Tsarin Fitilar)
Duk da cewa tsarin bugun yana nan a cibiyar (kusa da na'urar juyawa), yana da alaƙa da nacelle sosai saboda tsarin sarrafawa ne ke sarrafa shi a cikin nacelle. Tsarin bugun yana sarrafa kusurwar ruwan wukake dangane da iska.
Babban ayyuka:
- Yana daidaita ƙarfin fitarwa kuma yana kiyaye rpm cikin iyakokin aminci.
– Yana kare injin turbine daga iska mai ƙarfi ta hanyar juya ruwan wukake zuwa matsayin "fuka-fukan".
- Yana taimakawa tsarin farawa/tsayawa da injin turbine.
Tsarin siginar zai iya zama injin lantarki ko tsarin hydraulic, ya danganta da ƙirar injin turbine.
10. Mai Kulawa da SCADA (Tsarin Kulawa)
Injinan iska na zamani suna da na'urori masu sarrafawa waɗanda ke sarrafa bayanai daga na'urori masu auna sigina (gudun iska, girgiza, zafin jiki, rpm, halin yanzu/ƙarfin lantarki) kuma suna daidaita yaw, pitch, janareto, da tsarin aminci. Waɗannan tsarin galibi suna da alaƙa da tsarin SCADA don sa ido daga nesa.
Babban ayyuka:
- Yana sarrafa aikin injin turbine ta atomatik.
– Yana kare injin turbin da dabaru na aminci (kashewa a ƙarƙashin yanayi mara kyau).
– Yana sauƙaƙa gano lalacewar da kuma tsara kulawa.
11. Tsarin Sanyaya
Abubuwa kamar janareta, akwatin gearbox, da na'urorin lantarki masu amfani da wutar lantarki suna samar da zafi. Saboda haka, nacelle yana da tsarin sanyaya wanda ya ƙunshi fanka, na'urar musayar zafi, ko na'urar sanyaya ruwa.
Babban ayyuka:
- Yana kula da yanayin aiki mafi kyau na ɓangaren.
– Yana hana lalacewar man shafawa da kuma rufin lantarki.
– Tsawaita rayuwar sassan da kuma rage lokacin aiki.
12. Tsarin Man Shafawa
Akwatunan gear da bearings suna buƙatar man shafawa akai-akai. Tsarin man shafawa ya haɗa da famfon mai, matattara, na'urar firikwensin matsin lamba, da tsarin zagayawar jini.
Babban ayyuka:
– Yana rage gogayya da lalacewa.
– Yana jigilar zafi daga yankin da ke fuskantar gobara.
– A kiyaye mai a tsaftace domin kada abubuwan da ke ciki su lalace da sauri.
13. Murfin Nacelle
Murfin nacelle ba wai kawai yana da kyau ba ne. An ƙera shi ne don ya zama mai sauƙin shaƙatawa, mai hana yanayi, kuma yana ba da damar shiga allon don dubawa.
Babban ayyuka:
– Yana kare sassan jiki daga ruwan sama, ƙura, gishiri (yankunan bakin teku), da kankara.
– Rage hayaniya.
– Kula da iskar da ke kwarara domin sanyaya ta yadda ya kamata.
Kammalawa
Nacelle shine "kwakwalwa da ƙarfin" injin turbin iska. Yana ɗauke da kayan aikin injiniya kamar shafts, bearings, gearboxes, da birki; kayan aikin lantarki kamar janareto da masu juyawa; da tsarin sarrafawa kamar yaw, pitch, da SCADA. Kowane sashi yana da takamaiman aiki, amma duk suna aiki tare don mayar da iska zuwa wutar lantarki cikin aminci da inganci.
Fahimtar abubuwan da ke cikin nacelle da ayyukansu yana da mahimmanci ba kawai ga injiniyoyi da ɗalibai na makamashin da ake sabuntawa ba, har ma ga duk wanda ke sha'awar yadda injinan iska ke samar da wutar lantarki cikin aminci duk da canjin yanayin muhalli. Tare da ingantaccen ƙira na nacelle da kuma tsare-tsare na kulawa, injinan iska na iya aiki tsawon shekaru da yawa kuma su zama ginshiƙin sauyawa zuwa makamashi mai tsabta.
Idan kana so, zan iya yin sigar fasaha ta wannan labarin, tare da zane mai nuna kwararar makamashi (iska → rotor → watsawa → janareta → grid) ko jerin takamaiman abubuwan da ke cikin injin turbin kai tsaye idan aka kwatanta da akwatin gear.
