Firikwensin 330980 shine ainihin sashin sarrafa sigina na 3300 XL NSv Proximity Transducer System, wanda Benly Nevada ya ƙera, kasuwancin Baker Hughes. Wannan tsarin ingantaccen bayani ne, babban abin dogaro wanda aka tsara don kula da yanayin yanayi da kuma kariya ga injunan juyawa masu mahimmanci a cikin masana'antar zamani. Ya yi fice a aikace-aikace tare da ƙalubalen wuraren shigarwa da ƙananan maƙasudin aunawa, kamar a cikin kwampressors na iska na centrifugal, compressors na firiji, da kuma sarrafa gas compressors. A matsayin kwakwalwar tsarin, 330980 Proximitor Sensor ne ke da alhakin ba da ƙarfin bincike, sarrafa siginar ɗanyen, da kuma isar da daidaitaccen ma'aunin sigina mai girma-zuwa amo. Abu ne mai mahimmanci wanda ke ba da damar ainihin jujjuya rata ta jiki zuwa siginar lantarki mai karantawa.
Tsarin yana samar da cikakkiyar sarkar aunawa, wanda ya ƙunshi daidaitattun abubuwa guda uku:
3300 NSv Probe: Ayyukan aiki azaman 'ido' na tsarin, suna fuskantar manufa kai tsaye don samar da siginar shigar da wutar lantarki ta farko.
3300 NSv Extension Cable: Yana aiki azaman 'jijiya,' wanda aka yiwa ɗawainiya da isar da sigina mai tsayi tsakanin bincike da firikwensin tare da ƙarancin asara da murdiya.
3300 XL NSv Proximitor Sensor (misali, 330980): Ayyuka kamar 'kwakwalwa,' samar da wuta, sarrafa siginar, da fitar da siginar daidaitaccen.
An ƙera tsarin don magance ƙayyadaddun ƙuntatawa na shigarwa, tare da yanayin aikace-aikacen da suka haɗa da:
Wuraren da ke da ƙuntatawa na ƙirji, duba gefe, ko hanyar duba baya, suna hana amfani da daidaitaccen tsarin transducer 5 mm ko 8 mm.
Aikace-aikacen ƙananan-ƙananan manufa, kamar auna girgizawar radial akan raƙuman ƙasa da 51 mm (inci 2) a diamita ko auna ma'aunin axial (tuƙa) akan maƙasudin lebur ƙasa da 15 mm (0.6 inci).
Daidaitaccen ma'aunin girgiza radial, matsayi na radial, matsayi na axial, gudun, da sigina na Keyphasor akan na'urorin ɗaukar fim ɗin ruwa.
II. Cikakken Ayyukan Mahimmanci
Na'urar firikwensin 330980 ya fi ƙarar sigina mai sauƙi; naúrar watsawa ce mai hankali tana haɗa ayyuka maɓalli da yawa:
Ma'auni da Kariya na Radial Vibration
Wannan shine ɗayan mahimman mahimman ayyuka na tsarin. Yin amfani da tsarin firikwensin guda biyu tare da binciken da aka ɗora a kai a kai (yawanci a cikin hanyoyin X da Y) akan mahalli mai ɗaure, daidai da shaft, firikwensin 330980 yana ci gaba da sa ido kan motsin jujjuyawar igiyar da ke cikin ɗaukar hoto. Yana ɗaukar siginonin girgizar da ke haifar da laifuffuka na gama gari kamar rashin daidaituwa na rotor, rashin daidaituwa, lanƙwasa shaft, sako-sako, ko guguwar mai. Siginar wutar lantarki mai fitarwa ya yi daidai da ƙaƙƙarfan ƙaurawar girgiza zuwa kololuwa. Tsarin sa ido yana amfani da waɗannan sigina don tantance lafiyar injin a cikin ainihin lokaci, yana haifar da ƙararrawa ko rufewa lokacin da aka wuce iyakokin girgiza, don haka yana hana gazawar bala'i.
Axial (Trust) Kula da Matsayi
Don injuna masu ƙwanƙolin turawa (misali, compressors, injin tururi), sa ido kan motsin axial na rotor yana da mahimmanci. Na'urar firikwensin 330980, wanda aka haɗe tare da bincike da ke nufin abin wuya, daidai gwargwado na jujjuyawar motsi na axial na minti. Wannan yana lura da lalacewa mai ɗaukar nauyi kuma yana hana rotor tuntuɓar abubuwan da ke tsaye. Madaidaicin ma'aunin axial yana da mahimmanci don guje wa mummunan lalacewar injin da ya haifar da gazawar juzu'i.
Gano Gudun Sifili da Sifili
Ta hanyar bincike na musamman da aka sani da Keyphasor, firikwensin 330980 yana haifar da siginar bugun jini ga kowane juyi na shaft. Wannan bugun bugun jini yana ba da madaidaicin bayanin saurin juyawa kuma yana aiki azaman bayanin lokaci don nazarin jijjiga. A halin yanzu, ana amfani da wannan siginar don gano saurin sifili, yana mai tabbatar da ko rotor ɗin ya tsaya gaba ɗaya, wanda ke da mahimmanci ga jerin abubuwan sarrafa kansa kamar jujjuyawar haɗa kayan aiki da jerin farawa.
Samar da Siginar Tunani na
Matakin bugun bugun Maɓalli ba siginar gudun kawai ba ne; shi ne ma'anar lokaci don nazarin jijjiga. Ta hanyar daidaita yanayin motsin jijjiga tare da bugun bugun Maɓalli a cikin lokaci, ana iya tantance babban tabo na girgizar. Ana amfani da wannan don daidaita filin da gano kuskure (misali, gano fashewar rotor, mitar wucewar ruwa). Fitowar siginar Keyphasor mai tsafta, tsayayye ta firikwensin 330980 shine ginshiƙi don ci-gaba da nazarin girgizawa da bincike.
Dacewar tsarin da Hanyar Haɓakawa
An ƙirƙira firikwensin 330980 tare da dacewa da baya mai ƙarfi. Yana iya maye gurbin tsarin Proximitor kai tsaye a cikin 3300 RAM Transducer Systems a baya, yana amfani da abubuwan bincike da kebul na tsawo, yana ba masu amfani hanyar haɓaka mai ƙarancin farashi. Don haɓakawa daga tsofaffin 3000-jerin ko 7000-jerin I90 tsarin, canzawa zuwa tsarin 3300 XL NSv yana buƙatar maye gurbin bincike, kebul, da firikwensin tare da abubuwan NSv, don haka samun ingantaccen aiki da haɓaka juriya na sinadarai.
III. Ƙa'idar Aiki Mai Zurfafa: Eddy Fasahar Ji na Yanzu
Na'urar firikwensin 330980 da tsarinta suna aiki akan ingantaccen ka'idar jiki na tasirin eddy na yanzu don cimma nasarar da ba a tuntuɓar ba, ƙayyadaddun ƙayyadaddun ƙaura da ma'aunin girgiza. Cikakken tsarin aiki shine kamar haka:
Babban Mitar Oscillator da Ƙarfafa Filin Magnetic
A cikin firikwensin 330980 daidaitaccen da'irar oscillator mai tsayi mai tsayi. Wannan da'irar tana haifar da tsayayye, babban juzu'i mai jujjuyawa, yawanci a cikin kewayon 1 MHz zuwa 2 MHz, wanda ake isar da shi zuwa ga coil ɗin binciken ta hanyar kebul na tsawo. Lokacin da wannan halin yanzu ke gudana ta cikin na'ura ta gaban-karshen bincike, yana haifar da babban filin mu'amala da maganadisu a kusa da shi. Wannan filin yana aiwatar da gaba daga titin bincike, tare da ƙarfinsa yana lalacewa da sauri tare da haɓaka nesa.
Eddy Current Generation in the Target Conductor
Lokacin da wannan babban filin mu'amala na maganadisu ya kusanci kowane wuri mai sarrafa wutar lantarki (yawanci mashin ƙarfe na injin ko abin wuya), bisa ga Faraday's Law of Electromagnetic Induction, canjin yanayin maganadisu yana haifar da rufaffiyar madauki mai kewaya igiyoyin ruwa, da ake kira eddy currents, akan madubin gudanarwa. Rarrabawa da ƙarfin waɗannan magudanar ruwa sun dogara ne akan abubuwa da yawa, amma mafi mahimmanci akan rata tsakanin tip ɗin bincike da saman madugu.
Change in Probe Coil Impedance
The induced eddy currents themselves generate a secondary magnetic field, opposite in direction to the original field. A cewar Lenz's Law, wannan filin na biyu yana adawa da canji a fagen farko. Wannan hulɗar tana haifar da canji a cikin ingantacciyar ƙarancin wutar lantarki na na'urar bincike. Musamman, yayin da ratar ta ragu, tasirin eddy na yanzu yana ƙarfafawa, yana haifar da babban canji a cikin rashin ƙarfi na nada. Yayin da rata ya karu, tasirin yana raunana, kuma canjin impedance ya fi karami. Don haka, bayanin tazarar injinan daidai yake ' an ɗora su' azaman canji a cikin ƙarancin wutar lantarki na na'urar bincike.
Gano sigina, Rushewa, da Lantarki
Wannan shine ainihin matakin sarrafawa a cikin firikwensin 330980. Na'urar firikwensin ciki na firikwensin yana ci gaba da lura da waɗannan canje-canjen rashin ƙarfi a cikin na'urar bincike. Da'irar da'ira tana fitar da bayanan da aka daidaita tata daga siginar mai ɗaukar nauyi mai tsayi. Daga baya, ta hanyar haɓakawa da matakan daidaitawa, wannan siginar yana jujjuya shi zuwa siginar wutar lantarki na DC wanda ke da alaƙa mai tsayi sosai tare da rata. Matsakaicin Matsakaicin Matsakaicin Sikelin Factor don tsarin 3300 XL NSv shine 7.87 V/mm (200 mV/mil), ma'ana ƙarfin ƙarfin fitarwa yana canzawa da kusan 7.87 volts na kowane 1 mm na motsin manufa.
Matsakaicin Yanayin zafi da Tabbacin Tabbaci
Bambance-bambance a cikin yanayin zafi na iya shafar juriyar binciken coil da halayen kayan lantarki na firikwensin. Firikwensin 330980 ya haɗa da da'irori na ramuwa na ciki wanda ke magance ɗimbin fitarwa ta atomatik ta hanyar bambance-bambancen zafin jiki tsakanin kewayon yanayi (0 ° C zuwa + 45 ° C), yana tabbatar da kwanciyar hankali da daidaito na dogon lokaci.
Kariyar tsoma baki da Ƙarfin muhallin
masana'antu suna da wadatar tsangwama na lantarki. Na'urar firikwensin 330980 tana amfani da ingantacciyar tsangwama ta Mitar Rediyo/tsarar datsawar wutar lantarki. Gidan sa na ƙarfe yana ba da kyakkyawan garkuwa, kuma an inganta tsarin kewayawa na ciki da dabarun tacewa, yana ba shi damar ƙetare ƙaƙƙarfan buƙatun alamar CE da kuma tsayayya da tsangwama daga tushen gama gari kamar rediyon hanyoyi biyu da injina, yana tabbatar da ingantaccen siginar fitarwa mai inganci.
IV. Mabuɗin Ayyuka da Halayen Fasaha
Ƙwararren Injini da Ƙirƙirar Ƙirƙirar Ƙirƙirar
firikwensin yana fasalta bayanin martaba na bakin ciki, yana ba da izinin shigar da DIN-dogo mai girma a cikin bangarori masu sarrafawa, adana sarari mai mahimmanci. Har ila yau, yana goyan bayan daidaitawar panel-Mount na gargajiya, daidaitawa zuwa ayyuka daban-daban na shigarwa da shimfidu na majalisar.
Ayyukan Wutar Lantarki Na Musamman
Layi Mai Layi: 1.5 mm, farawa daga kusan 0.25 mm, yana tabbatar da isasshiyar tazarar aiki a kusa da saitin rata na mm 1.0 da aka ba da shawarar.
Babban Daidaito: Ragewa daga Mafi kyawun Layin Daidaitaccen Fit bai wuce ± 0.06 mm ba, yana ba da tabbacin amincin auna.
Martanin Mitar: 0 zuwa 10 kHz, ya isa ya kama mafi yawan abubuwan haɓaka girgizar da aka samu a cikin injinan jujjuyawar masana'antu.
Ƙarfin Fitarwa: 50-ohm impedance yana ba da damar yin wayoyi a filin tuki har zuwa mita 305 zuwa tsarin kulawa.
Daidaitawar Muhalli mai ƙarfi
Faɗin Zazzabi: Firikwensin yana aiki da dogaro daga -52°C zuwa +100°C.
Babban Juriya na Humidity: Tare da masu haɗin kai masu kariya, zai iya jure zafi 100%.
Resistance Chemical: Binciken NSv yana ba da ingantaccen juriya ga lalata sinadarai idan aka kwatanta da magabatansa, wanda ya dace da masana'antun sarrafawa tare da mai mai mai, refrigerants, da sauran sinadarai.
Tsaro da Takaddun shaida
Yana goyan bayan matakan aminci na SIL 2 da SIL 3 don amfani a cikin tsarin kayan aikin aminci.
Yana riƙe takaddun shaida na yanki masu haɗari da yawa ciki har da ATEX, IECEx, da cNRTLus, yana ba da izinin amfani a cikin yuwuwar fashewar yanayi (lokacin shigar da shingen tsaro na ciki da suka dace ko masu keɓewa).
