TQ902 babban aiki ne, firikwensin kusanci mara lamba dangane da ka'idar eddy-yanzu daga layin samfurin VM. Yana aiki azaman babban ɓangaren gaba-gaba na cikakkiyar Sarkar Ma'aunin kusanci, wanda yawanci ya ƙunshi firikwensin TQ902, kebul na tsawo na EA902 na zaɓi, da kwandishan siginar IQS900.
An tsara firikwensin TQ902 na musamman don kula da yanayin yanayi da tsarin kariya na injin juyawa. Babban aikinsa shine auna daidai matsugunin dangi (rabi) tsakanin binciken firikwensin da makasudin karfe (yawanci mashin injin jujjuya). Yin amfani da hanyar da ba ta sadarwa ba, tana canza canje-canje na mintina a cikin tazarar inji zuwa bambance-bambancen sigogin lantarki, samar da ɗanyen bayanai don daidaita sigina na gaba da yanke shawarar tsarin.
TQ902 nau'i ne, dacewa, da aiki daidai da maye gurbin na'urori masu auna firikwensin TQ4xx, tare da ingantawa a cikin kayan aiki da ƙira, daidaitawa ko ma wuce aikin su.
Ana amfani da wannan tsarin sosai a cikin kayan aiki masu mahimmanci irin su turbines, turbines gas, turbines na ruwa, turbo-compressors, manyan famfo, magoya baya, janareta, da kuma injiniyoyi don saka idanu da rawar jiki na radial, ƙaurawar axial (matsayin matsawa), da kuma saurin juyawa (Keyphasor). Na'ura ce mai mahimmanci don samun kariya ta injina, kulawar tsinkaya, da aminci na aiki (misali, Tsarukan Ganewa Matsala - ODS). Dukkanin sarkar aunawa ta cika da buƙatun API 670 5th Edition.
Siffofin Mahimmanci da Fa'idodi
Tsarin firikwensin TQ902 yana nufin samar da abin dogaro, kwanciyar hankali, da ma'auni daidai a cikin matsanancin yanayin masana'antu. Babban fasalinsa sun haɗa da:
Ƙa'idar Ma'auni na Eddy-Yanzu ba Abokin Tuntuba:
Yana amfani da babban tasirin eddy-na yanzu don aunawa, gaba ɗaya nisantar tuntuɓar maƙasudin juyawa mai sauri, kawar da lalacewa da tsagewa, da samar da rayuwar sabis mai tsayi sosai da babban abin dogaro.
Mai ikon auna maƙasudin da aka yi da kayan ƙarfe daban-daban, yana ba da aikace-aikace da yawa.
Maɗaukakin Zazzabi da Juriya na Muhalli:
Yanayin Zazzabi Mai Faɗi: Jikin firikwensin na iya aiki gabaɗaya a yanayin zafi daga -40 ° C zuwa + 180 ° C kuma yana jure yanayin rayuwa na ɗan gajeren lokaci har zuwa +220 ° C (na tsawon sa'o'i 2), wanda ya dace da yanayin masana'antu masu zafi daban-daban, kamar wurare kusa da gidaje masu ɗaukar injin injin.
Ƙididdiga na Musamman na Kariya: Shugaban firikwensin (bincike da kebul na haɗin kai) yana alfahari da ƙimar kariya ta IP68, yana ba da cikakkiyar kariya daga shigar ƙura da ci gaba da nutsewa, yana tabbatar da kwanciyar hankali a cikin yanayi mai tsauri, rigar, mai, da ƙura.
Ƙarfafan Injiniyan Gina:
Abun Bincike: Na'urar firikwensin firikwensin an lullube shi a cikin tip ɗin binciken da aka yi da PPS (Polyphenylene Sulfide), babban aiki, thermoplastic injiniya mai zafin jiki. Kayan PPS yana ba da kyakkyawan juriya ga yanayin zafi, sinadarai, da ƙarfin injina.
Kayan Jiki: Jikin firikwensin an kera shi daga bakin karfe AISI 316L kuma an ƙulla shi cikin aminci zuwa sashin bincike, yana tabbatar da ingantaccen tsarin gabaɗaya da juriya na lalata.
Tsare Tsare Tsare-tsare: Firikwensin na iya jure matsakaicin matsakaicin matsa lamba na mashaya 6 (100 psid) tsakanin tip na bincike da jiki, dacewa da yanayin shigarwa tare da matakan matsa lamba.
Kanfigareshan Mai Sauƙi da Shigarwa:
Nau'in Zaren Maɗaukaki: Yana ba da ma'auni guda biyu (M10 × 1, M14 × 1.5, M16 × 1.5) da na sarauta (3/8 '-24UNF, 5/8' -18UNF, 1/2' -20UNF) zaɓuɓɓukan zaren don saduwa da buƙatun shigarwa don yankuna daban-daban da kayan aiki a duniya.
Matsakaicin Mahimmanci: Tsawon jiki (C) da tsayin da ba a bayyana ba (D) ana iya keɓance su a cikin haɓakar mm 1 a cikin kewayon ƙayyadaddun (misali, 20mm zuwa 250mm) don dacewa da zurfin rami mai hawa daban-daban da tsarin injina.
Matsakaicin Tsawon Tsawon Kebul: Yana ba da tsayin igiyoyi daban-daban (E) (misali, 0.5m, 1.0m, 1.5m, 2.0m, 5.0m, 10.0m), wanda za'a iya haɗa shi tare da igiyoyin tsawaitawa na EA902 don cimma jimlar Tsawon Tsawon Tsawon Tsayi (TSL) na 1m, 1.0m, buƙatun buƙatun wiring.
Cikakken Takaddun Takaddun Kariyar Fashewa:
Akwai a cikin ƙwararrun nau'ikan tabbatar da fashewar abubuwa (Ordering Option Code A5) don amfani a wurare masu haɗari (mai yuwuwar fashewar yanayi).
A cikin 'Ex ec' yanayin kariya, TQ902 kanta tana aiki azaman 'Sauƙaƙan Na'ura' kuma, lokacin da aka yi amfani da shi tare da kwandishan siginar IQS900 da aka tabbatar da 'Ex ec', ana iya amfani da shi a cikin mahallin gas na Zone 2.
A cikin 'Ex ia' yanayin kariya na ciki, TQ902 kuma yana aiki azaman 'Sauƙaƙan Na'ura' kuma, lokacin amfani da IQS900 da aka tabbatar don 'Ex ia', ana iya amfani da shi a Yanki 0, 1, 2 gas da muhallin yanki na Zone 20, 21, 22.
Rike takaddun shaida daga yankuna na duniya da yawa, gami da ATEX na Turai, International IECEx, Arewacin Amurka cCSAus, Koriya ta KGS, UK UKEX, da Kazakhstani EAEU.
Kayayyakin Kariya na Zabin:
Bakin Karfe Mai Sauƙi tare da FEP Sheath: Zaɓuɓɓuka mai sassauƙa na bakin karfe tare da kwas ɗin FEP (Fluorinated Ethylene Propylene) yana ba da hatimi (mai tsauri), kariya ta injina, da rufin lantarki don kebul na firikwensin. Kushin FEP kuma yana ba da juriya ga kusan dukkanin sinadarai, ƙarancin ƙarfi (da ruwa, iskar gas, danshi), sassauci, ƙarancin juzu'i, da ƙaƙƙarfan inji mai ƙarfi, yadda ya kamata yana kare kebul daga lalacewa a cikin buƙatar yanayin aiki.
Kyakkyawan Vibration da Juriya na Shock:
Mai ikon jurewa girgizar 5 g kololuwa tsakanin 10 Hz da 500 Hz, da saurin girgiza 15 g kololuwa (rabin-sine bugun jini, 11 ms duration), yana tabbatar da samar da siginar kwanciyar hankali har ma da injunan girgizar ƙarfi.
Canja-canjen bangaren:
Yana samar da sarkar ma'auni mai ƙima tare da kebul na tsawo na EA902 da kwandishan siginar IQS900, inda duk abubuwan haɗin ke canzawa. Wannan yana nufin za'a iya maye gurbin kowane bangare ba tare da sake daidaita tsarin gabaɗayan ba, yana rage ƙimar kulawa da mahimmancin ƙira.
Bayanin Ƙa'idar Aiki Mai Zurfi
Mai firikwensin TQ902 shine mai ƙaddamar da siginar gabaɗayan sarkar aunawa. Ka'idar aikinsa ta dogara ne akan shigar da wutar lantarki da tasirin eddy-yanzu. Wannan tsari ne na zahiri wanda ke juyar da canje-canjen tazarar injiniya zuwa canje-canjen inductance, dalla-dalla a cikin matakai masu zuwa:
Ƙirƙirar Filin Lantarki Mai Girma:
Na'urar firikwensin yana buƙatar tuƙi daga na'urar kwandishan siginar IQS900 na ƙasa. Matsakaicin oscillator a cikin IQS900 yana haifar da tsayayye, babban mitoci (yawanci kewayon MHz) AC sinusoidal halin yanzu.
Ana watsa wannan babban mitar halin yanzu ta hanyar kebul na coaxial zuwa madaidaicin nada a cikin firikwensin TQ902. An yi wannan murɗa da waya mai rauni kuma an lulluɓe shi a cikin tip ɗin binciken kayan PPS.
Ƙarfafawar Eddy na Yanzu da Rashin Makamashi:
Lokacin da maɗaukakiyar halin yanzu ke gudana ta cikin nada, yana haifar da madaidaicin filin lantarki mai ƙarfi a cikin sararin da ke kewaye. Wannan filin yana ratsa kayan PPS a saman binciken firikwensin kuma ya shimfiɗa zuwa sararin da ke gaba.
Lokacin da binciken firikwensin ya kusanci maƙasudin ƙarfe (misali, shaft), madadin filin lantarki yana haifar da rufaffiyar madauki, da ake kira eddy currents, akan saman da ake niyya.
Bisa ga Dokar Lenz, waɗannan igiyoyin ruwa suna haifar da sabon filin maganadisu wanda ya bambanta da ainihin filin, koyaushe yana ƙoƙarin adawa da canjin filin da ya halicce su.
Modulation Sensor Impedance Modulation:
Yayin da igiyoyin ruwa ke gudana a cikin abin da ake nufi, suna haifar da zafi saboda abubuwan juriya na kayan, suna watsar da kuzari. Wannan makamashin ya fito ne daga tushen (IQS900) yana tuƙin nada.
Wannan ɓarkewar makamashi yana bayyana azaman canji a cikin tasiri mai tasiri na na'urar firikwensin. Musamman, duka inductance na coil (L) da juriya mai inganci (R) suna raguwa.
Mabuɗin Maɓalli: Rata (nisa) tsakanin binciken firikwensin firikwensin da maƙasudin ƙarfe kai tsaye yana ƙayyade ƙarfin tasirin eddy-yanzu, ta haka yana sarrafa matakin canjin naɗaɗɗen naɗa. Karamin tazara yana haifar da ƙarfafa haɗin haɗin filin lantarki, fiɗaɗɗen raƙuman ruwa mai ƙarfi, mafi girman asarar kuzari, da ƙarin mahimmin canji na rashin ƙarfi na nada. Sabanin haka, babban gibi yana haifar da ƙarancin canji na impedance.
Isar da sigina:
Canji a cikin abin da ke rikidewa na coil yana daidaitawa (mai canza) girman siginar babban mitoci da aka nuna baya daga IQS900. Mahimmanci, bayanin ratar yana ƙunshe a cikin girman girman wannan sigina mai girma.
Ana mayar da wannan sigina mai girma da aka daidaita ta hanyar kebul na coaxial zuwa kwandishan siginar IQS900 don aiki na gaba.
Gudun aiki: IQS900 yana ba da babban mitar halin yanzu → TQ902 coil yana haifar da madaidaicin filin maganadisu → Yana haifar da igiyoyin ruwa a cikin maƙasudin ƙarfe → Eddy igiyoyin ruwa suna haifar da ɓarna makamashi
TQ902 kanta ba ta fitar da wutar lantarki kai tsaye ko siginar halin yanzu daidai da ratar. Yana cim ma matakin farko na juyawar injiniyan lantarki, '' yana canza canje-canje a gibin injina zuwa canje-canjen sigogin lantarki (impedance/inductance). Ayyukan sarrafa siginar hadaddun na gaba-demodulation (cire bambance-bambancen girman girman sigina mai girma), haɓakawa, layin layi, ramuwa zazzabi, da daidaitaccen fitarwa (canzawa zuwa siginar 4-20mA ko -1 ~ -17V DC) - duk ana yin su ta hanyar kwandishan siginar IQS900 na ƙasa. Ayyukan aiki da daidaito na TQ902 sune tushe da garanti don ma'auni mai mahimmanci na dukan tsarin.
Aikace-aikace da Muhimmanci a cikin Cikakkun Sarkar Auna
A Matsayin naúrar ji, TQ902 tana taka muhimmiyar rawa a cikin cikakkiyar sarkar auna wacce ta ƙunshi 'Sensor - Cable - Signal Conditioner':
Ƙarshen Gaba don Tsarukan Kariya na Kayan Aiki: Yana ci gaba da lura da girgizawar shaft da matsayi kuma lokacin da girman girgizar ko ƙaura ya wuce iyakokin aminci, tsarin yana haifar da ƙararrawa ko rufewa don hana lalacewar kayan aiki mai bala'i.
Gidauniyar Kula da Yanayi da Bincike: Danyen siginar da yake bayarwa ya ƙunshi wadatattun bayanan jihar na inji. Yin nazarin yanayin jijjiga da abubuwan da ke faruwa na iya gano kuskuren farko kamar rashin daidaituwa na rotor, rashin daidaituwa, da lalacewa, ba da damar kiyaye tsinkaya.
Maɓalli Maɓalli a cikin Aikace-aikacen Tsaro na Aiki: Lokacin da aka haɗa su tare da IQS900 wanda ke nuna alamun bincike (Shafin SIL 2), ana iya amfani da duk sarkar ma'auni a cikin Tsarin Kayan Aiki na Tsaro (SIS), kamar Tsarin Kariyar Tsare-tsare (ODS), yana ba da kariya ga ayyukan amincin shuka wanda ya dace da ka'idodin aminci na duniya (IEC 61308, ISO 61508).
Wurin farawa don isar da nisa: Lokacin da aka canza siginar sa zuwa sigina na yanzu (2-waya) ta IQS900 kuma ana watsa shi ta hanyar keɓance raka'a kamar GSI127, ana iya samun isar da sigina akan nisa har zuwa kilomita 1, dacewa don rarraba kulawa a cikin manyan tsire-tsire.
