IS200VTCCH1C Thermocouple Input Board babban madaidaicin siginar siginar zafin jiki ne da sarrafa ainihin abin da ke tsakanin tsarin General Electric (GE) Mark VI da Mark Vle gas na sarrafa injin turbine. A cikin injin turbin iskar gas, injin tururi, da sarrafawar tsarin masana'antu daban-daban, kula da yanayin zafi na wurare masu mahimmanci (kamar yanayin shigar turbine, zazzabi mai ɗaukar nauyi, zazzabi mai shayewa, da sauransu) yana da mahimmanci, yana tasiri kai tsaye amincin kayan aiki, inganci, da tsawon rayuwa. An tsara hukumar IS200VTCCH1C daidai don irin waɗannan aikace-aikacen da ake buƙata. Yana da alhakin samun madaidaicin madaidaici, haɓakawa, layi-layi, ramuwa junction sanyi, da juzu'i na ƙarshe na siginar ƙarancin ƙarfin millivolt (mV) -matakin siginar wutar lantarki da aka samar ta hanyar firikwensin thermocouple a cikin madaidaitan ƙimar zazzabi na dijital, waɗanda aka ba da su ga tsarin sarrafawa don saka idanu, tsari, da kariya.
Wannan kwamiti yana ɗaukar daidaitaccen tsarin gine-gine na VME 6U, wanda aka shigar a cikin tasoshin sarrafawa kuma an haɗa shi zuwa filayen tashar TBTC ko DTTC da ke filin ta hanyar keɓaɓɓun igiyoyi. Guda IS200VTCCH1C guda ɗaya na iya aiwatar da abubuwan shigar da thermocouple har zuwa 24, yana ba da babban adadin tashoshi. Musamman ma, an inganta VTCC zuwa manyan nau'ikan guda biyu dangane da yanayin aikace-aikacen: IS200VTCCH1C an inganta shi don aikace-aikacen sarrafa injin turbin gas, yana tallafawa E, J, K, S, da nau'in thermocouples na T; IS200VTCCH2C yana aiki azaman sigar manufa ta gabaɗaya, haka kuma tana tallafawa nau'ikan thermocouples na B, N, da R kuma yana nuna kewayon sigina mai faɗi don dacewa da mafi girman yanayin yanayin auna zafin masana'antu. Dukansu nau'ikan biyu suna amfani da allunan tasha iri ɗaya, suna ba masu amfani da zaɓi masu sassauƙa da haɓaka hanyoyin haɓakawa.
Babban Ayyuka da Features
VTCC Thermocouple Board Input Board yana haɗa fasahar sanyaya siginar ci gaba, mai sarrafawa mai ƙarfi, da algorithms bincike na hankali, yana da manyan ayyuka da fasali masu zuwa:
1. Nau'i da yawa, Tallafin Thermocouple Faɗi:
Sigar VTCCH1: An inganta ta musamman don jeri na yanayin turbin gas na yau da kullun, yana goyan bayan E, J, K, S, nau'in thermocouples na T da siginar millivolt (mV) kai tsaye (-8mV zuwa +45mV). Kewayon sa ya ƙunshi nau'ikan bakan daga matsanancin yanayin zafi (misali, -60°F/-51°C) zuwa matsanancin zafi mai zafi (misali, nau'in S-har zuwa 3200°F/1760°C), saduwa da buƙatun wuraren lura da zafin jiki daban-daban daga farawa zuwa cikakken kaya a cikin injin turbin gas.
Sigar VTCCH2: A matsayin sigar da ta fi dacewa, tana ƙara tallafi don nau'in thermocouples B, N, da R zuwa nau'in H1 kuma yana faɗaɗa kewayon shigar da siginar millivolt zuwa -20mV zuwa +95mV. Wannan yana ba shi damar ɗaukar ƙarin ma'aunin zafin jiki na masana'antu (misali, nau'in B har zuwa 3272°F/1800°C) da faɗuwar aikace-aikacen aiwatar da masana'antu.
2. Ma'aunin Madaidaicin Mahimmanci da Ci Gaban Gudanar da Sigina:
16-Bit High Resolution A / D Canjin: Yana amfani da nau'in samfurin 16-bit analog-to-digital Converter tare da ingantaccen ƙuduri mafi kyau fiye da raƙuman 14, yana iya magance canje-canjen matakin microvolt a cikin wutar lantarki na thermocouple, yana shimfiɗa harsashin hardware don ma'aunin madaidaicin zafin jiki.
Ƙarfin Ƙarfin Ƙarfafa Tsangwama:
Matsakaicin Ƙimar Na'ura ta gama-gari (CMRR): Ya kai 110 dB @ 50/60 Hz (tare da daidaitaccen abin shigar da bayanai), yadda ya kamata yana murkushe tsangwama-yanayin gama-gari a mitoci na wutar lantarki gama gari a cikin filin.
Kin amincewa da Yanayin Al'ada: Ƙimar kin amincewa 80 dB akan 250mV RMS na al'ada-tsangwama a 50/60 Hz.
Ƙunƙarar Hayaniyar Kan Jirgin: Kowane rukuni na abubuwan shigar da thermocouple a kan tashar tashar TBTC an sanye su tare da da'irar kashe amo mai tsayi, yana tabbatar da babban sigina-zuwa amo don siginar watsawa mai nisa.
Lissafin Layi ta atomatik: Ga kowane nau'in thermocouple (E, J, K, da sauransu), TMS320C32 Digital Signal Processor (DSP) na VTCC yana gudanar da algorithm ɗin layi na musamman (yawanci dangane da ma'aunin NIST), daidai yake canza ma'aunin millivolt ɗin da ba a auna shi ba zuwa ƙimar injinin zafin jiki na madaidaiciya (°F ko °C).
3. Haɓaka Haɗin Ciwon Sanyi Mai Haɓakawa (CJC):
Matsakaicin ramuwa na sanyi yana da mahimmanci don daidaiton ma'aunin thermocouple. Tsarin VTCC yana amfani da tsarin CJC mai sauƙi, mai daidaitawa, kuma ingantaccen abin dogaro:
Dual Redundant References: Kowane kwamiti na VTCC ya dace da maki biyu masu sanyi (yawanci suna cikin yankunan JA1 da JB1 na tashar tashar TBTC), kowanne yana ɗauke da firikwensin zafin jiki mai zaman kansa (misali, zazzabi na semiconductor IC).
Zaɓin Tushen Raɗaɗi Mai Sauƙi (Sabuwar Fayil na Firmware): Don allon allo tare da sigar firmware VTCC-100100C da sama, masu amfani za su iya zaɓar tushen ramuwa don kowane ma'anar CJ:
Na gida: Yana amfani da karantawa daga firikwensin zafin jiki akan allon tasha.
Nesa: Yana amfani da ƙimar zafin jiki da aka samu ta hanyar bas ɗin VME daga wani wuri a cikin tsarin (misali, wani ƙirar da ke da tsayayyen zafin jiki). Za'a iya haɗa wuraren nunin CJ guda biyu a cikin tsari (na gida ɗaya, nesa ɗaya).
Dabarun Hukunci na Hankali:
Idan duka karatun CJ duka suna cikin iyakoki masu daidaitawa, ana amfani da matsakaicin su don ramuwa, suna ba da daidaito mafi girma.
Idan karatun CJ guda ɗaya kawai yake aiki, ana amfani da ƙimar.
Idan duka CJs biyu sun kasa (misali, buɗe da'irar, gajeriyar da'ira, ko ƙetare kewayon aminci na 32-158°F na hardware), ana kunna ƙimar madadin. Ƙimar ajiyar kuɗi na iya samo asali daga karatun CJ akan sauran allunan tasha ko amfani da ƙimar da aka saita, tabbatar da tsarin na iya samar da ingantaccen (ko da yake mai yuwuwa ƙasa da daidaito) karatun zafin jiki a ƙarƙashin matsanancin yanayi.
Babban Ma'aunin CJ: Daidaitaccen ma'aunin sanyi na junction shine ± 1.1°C (2°F). Haɗe tare da kuskuren daidaita layin software (max 0.25°F), yana tabbatar da daidaiton ma'aunin zafin jiki gabaɗaya. Kuskuren 1°F a cikin diyya na CJ kai tsaye yana haifar da kuskuren 1°F a cikin karatun thermocouple, yana nuna mahimmancinsa.
4. Cikakken Bincike akan Layi da Kariyar Tsaro:
Dubawa Iyakar Hardware: Kowane nau'in thermocouple yana da saiti (marasa iya daidaitawa) na'ura mai ƙarfi/ƙananan iyakoki da aka saita kusa da ƙarshen kewayon aiki. Da zarar siginar shigarwa ta wuce waɗannan iyakoki, nan da nan za a cire tashar daga jerin binciken don hana sigina mara kyau (misali, babban ƙarfin lantarki saboda gajeriyar kewayawa) daga yin tasiri na al'ada na sauran tashoshi a kan allo ko ma'anar mai canza A/D.
Tsari (Software) Ƙayyadaddun Dubawa: Masu amfani za su iya saita iyakokin ƙararrawar ƙararrawa mai ƙarfi/ƙananan zafin jiki ( SysLimit ) ga kowane tashoshi kuma zaɓi ko don ɗaukar ƙararrawa. Ana amfani da wannan don lura da tsari da faɗakarwa da wuri.
Kwatanta Bambancin Tsarin Tsarin TMR: A cikin tsarin Sau uku Modular Redundant (TMR), VTCC ta ci gaba da kwatanta karatu daga ma'aunin zafin jiki iri ɗaya a cikin tashoshin R, S, T. Idan kowane karatun ya bambanta da ƙimar matsakaicin 2-out-3 da aka zaɓa ta fiye da saiti TMR_DiffLimit , tsarin yana nuna takamaiman tashar kamar yadda ba daidai ba, yana ba da ma'aikatan kulawa tare da gargaɗin farko na abubuwan da za su iya yiwuwa, yana ba da damar kiyaye tsinkaya.
Cikakken Binciken Kai: Tsarin yana ci gaba da sa ido da tantance mahimmin sigogi masu zuwa:
Raw A/D ƙididdiga ƙididdiga ga kowane shigarwar thermocouple (gano wuce gona da iri, buɗe/gajerun da'irori).
Karatu daga nassoshi biyu masu sanyi.
Wutar magana ta kan jirgi da sifiri.
Duk wani abin da ba a sani ba yana haifar da ƙararrawar bincike daidai kuma an haɗa su zuwa siginar gwajin gwajin matakin matakin allo, L3DIAG_VTCC.
Tabbatar da Ƙimar Hardware: Dukkan allunan tasha da allunan I/O suna sanye da guntun ID masu karantawa kawai. Mai sarrafa VTCC yana karantawa kuma yana tabbatar da lambar serial, nau'in allo, bita, da bayanin wurin mahaɗi da aka adana a cikin kwakwalwan kwamfuta akan kunnawa. Rashin daidaituwa tare da tsarin tsarin yana haifar da kuskuren rashin daidaituwa na hardware, yana hana shigarwar allon kuskure.
5. Ƙarfafawar Tsari da Sassautu:
Yana goyan bayan Waya Mai Nisa: Ana iya shigar da na'urori masu auna firikwensin thermocouple har zuwa mita 300 (ƙafa 984) daga majalisar kulawa, tare da iyakar juriya na madauki na waya biyu na 450 Ω, wanda ya dace da shimfidar buƙatun manyan shuke-shuke.
Mai dacewa da ƙasa/Mai iyo: Yana goyan bayan ƙasa ko keɓewa (mai iyo) thermocouples, yana ba da sassaucin wayoyi ga masu amfani.
Yana goyan bayan shigar da siginar Millivolt: Bayan ma'aunin zafi da sanyio, ana iya saita tashoshi don karanta siginar millivolt kai tsaye (kewaya ya bambanta da sigar), sauƙaƙe haɗi zuwa wasu nau'ikan masu watsawa ko don gyara gyarawa.
Mai jituwa tare da Tsarin Gine-gine da yawa: Daidai yana goyan bayan tsarin Simplex da Triple Modular Redundancy (TMR). A cikin aikace-aikacen TMR, ana amfani da allon tashar tashar TBTCH1B, yana ba da sigina zuwa na'urori masu sarrafa VTCC masu zaman kansu ta hanyar igiyoyi shida, samun nasarar sake shigar da siginar jiki.
Ƙa'idar Aiki
Ƙa'idar aiki na tsarin shigar da thermocouple VTCC daidaitaccen, tafiya mai sarrafa siginar matakai da yawa daga tasirin jiki zuwa ƙimar dijital:
1. Samun Sigina da Sharadi na Farko:
Ma'aunin thermocouple na filin yana haifar da ƙaramin ƙarfin wutar lantarki na DC (µV zuwa mV) daidai da bambancin zafin jiki tsakanin mahaɗarsa mai zafi (madaidaicin ma'auni) da haɗin sanyi (madaidaicin ƙarshen) dangane da tasirin Seebeck.
Ana isar da wannan siginar ta hanyar kebul mai karewa mai karkata zuwa ga tashar tashar TBTC. Da'irar kashe amo a kan tasha ta fara tace tsangwama mai girma.
Don gano buɗaɗɗen kewayawa na thermocouple, tsarin yana amfani da ƙaramin ƙarfin wutan lantarki (± 0.25V) ta hanyar tsayayyar 10 kΩ. Idan thermocouple ya buɗe, za a gano wannan ƙarfin lantarki na son zuciya, yana haifar da ƙararrawar bincike 'raw ƙidayawa'.
2. Rayyayar Junction Cold da Multiplexing Sigina:
Ana aika siginonin analog na thermocouple 24 masu sharadi zuwa allon VTCC ta hanyar haɗin nau'in nau'in 37-pin 'D' (J3, J4) tare da latching fasteners.
A lokaci guda, ana aika sigina daga biyu (shida a cikin tsarin TMR) na'urori masu auna zafin jiki na sanyi a kan tashar tashar TBTC zuwa VTCC. Waɗannan na'urori masu auna firikwensin daidai gwargwado suna auna zafin jiki a wurin haɗin tasha (watau ma'aunin sanyi na thermocouple).
Da'irar gaban-ƙarshen analog akan allon VTCC yana yin madaidaicin daidaitawa da haɓaka waɗannan sigina masu yawa a cikin shirye-shiryen juyawa A/D.
3. Babban Madaidaicin Analog-zuwa-Digital Juyawa da Gudanar da Dijital:
Canjin A/D: Ƙimar 16-bit na gaba-gaba (SAR) ko nau'in Δ-Σ nau'in A/D mai canzawa da kuma ƙididdige kowane sigina mai yawa a babban gudun (sau 120 a sakan daya @ 60Hz tsarin), yana mai da ƙarancin ƙarfin analog mai rauni zuwa babban ƙimar dijital 'raw kirga dabi'u.'
Daidaitawar atomatik da Kuskuren Gyara: Kowane zagayowar dubawa ko lokaci-lokaci, firmware na VTCC yana sarrafa maɓalli na ciki don karanta madaidaicin madaidaicin madaidaicin tushen wutar lantarki da sifiri. Amfani da waɗannan sanannun ƙididdige ƙididdigewa, tsarin yana ƙididdigewa da gyara ribar mai sauya A/D da kashe kurakurai a cikin ainihin lokaci, yana tabbatar da kwanciyar hankali da daidaito na dogon lokaci. Wannan muhimmin mataki ne na cikin gida don cimma daidaito mai girma.
4. Software Linearization da Zazzabi Lissafi (An kammala a cikin DSP):
5. Iyakance Dubawa, Zaɓe, da Fitarwa:
Ƙimar zafin jiki da aka ƙididdige nan da nan an ƙaddamar da shi ga iyakar kayan aiki da ƙayyadaddun ƙayyadaddun tsarin bincike. Alamomin da ba su da iyaka suna da tuta kuma suna iya jawo ƙararrawa ko a cire su daga dubawa.
A cikin Tsarin TMR: Karatun zafin jiki guda uku don thermocouple iri ɗaya daga
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Ana aika allunan VTCC zuwa babban mai kulawa (misali, VCMI) don jefa ƙuri'a na matsakaici. An zaɓi ƙima ta tsakiya azaman ƙimar ' daidai ' don waccan thermocouple da fitarwa zuwa dabaru na sarrafawa. A lokaci guda, tsarin yana ci gaba da kwatanta bambance-bambance tsakanin karatun uku, yana ba da damar gano kuskuren matakin tashar.
A ƙarshe, duk ingantattun ƙimar zafin jiki na tashoshi 24, ƙimar junction zafin sanyi, ƙimar bincike, da sauransu, ana watsa su a cikin ainihin lokaci ta hanyar bas ɗin VME zuwa allon sadarwa na VCMI, wanda ke rarraba su zuwa ga masu sarrafawa daban-daban da software na aikace-aikacen a cikin tsarin sarrafawa.
6. Ci gaba da Kulawa da Bincike:
Gabaɗayan tafiyar aiki ana lura da shi ta hanyar layi ɗaya, injin bincike mai ƙarfi. Yana ci gaba da kwatanta ƙimar A/D mai ɗanɗano, karatun CJ, da ƙarfin tunani na ciki akan kewayon amincin da aka saita. Ana kama duk wani karkacewa nan da nan kuma ana nuna shi ta hanyar LEDs na gaba (RUN green flashing, FAIL ja tsayayye, STATUS orange steady yana nuna ƙararrawa na ganowa) kuma an ba da rahoton sauye-sauyen bincike, tabbatar da masu aiki da ma'aikatan kulawa koyaushe suna sane da matsayin lafiyar hukumar.
Aikace-aikace da Takaitawa
VTCC Thermocouple Input Board shine cikakken madaidaicin madaidaicin madaurin zafin jiki a cikin tsarin sarrafa GE Mark VI/Vle. Ana amfani dashi ko'ina don auna ma'aunin ɗaruruwan mahimman maki a cikin injin turbin gas da turbi, kamar Zazzabi na Inlet ɗin Turbine, Zazzabi Mai Haɗawa, Zazzabi na Wuta, da Zazzabi. Waɗannan bayanan zafin jiki sune tushen tushe don tsarin sarrafawa don aiwatar da ayyuka masu ci gaba kamar Kariyar Wutar Lantarki, Kula da Matsala ta thermal, Inganta Ayyuka, da Farawa Tsari.
Kimarta tana nunawa a:
Na Musamman Daidaituwa da Dogara: Yana ba da tsayayye, amintaccen bayanan zafin jiki a cikin matsanancin yanayin lantarki na masana'antu ta hanyar babban ƙuduri A/D, daidaitawa ta atomatik, ramuwar haɗin sanyi mai hankali, da algorithms na layi.
Babban Aminci da Kasancewa: Binciken matakan matakai da yawa (iyakan hardware, iyakokin tsarin, bambance-bambancen TMR), keɓewar tashar kuskure, da ƙira mai ƙima don CJC suna tabbatar da cewa gazawar ma'aunin ma'auni ɗaya ko ma na'ura mai ban sha'awa ba ya haifar da lalacewar tsarin ko asarar ikon sa ido.
Ƙaƙwalwar Ƙaƙwalwar Ƙarfafawa da Ƙarfafa Ƙarfafawa: Yana goyan bayan nau'ikan thermocouple da yawa, wayoyi mai tsawo / gajere, da kuma tsarin gine-gine na Simplex/TMR, yana ba da damar haɗin kai maras kyau a cikin tsarin da ya fito daga sauƙi zuwa mafi rikitarwa.
