330505-02-02-00 Bently Nevada na'urar sauya siginar girgizar ƙasa mai ƙarancin mita

Takaitaccen Bayanin Samfuri

Wannan 330505-02-02-00 na’urar firikwensin saurin seismic ce mai inganci wadda kamfanin Bently Nevada ya ƙera don saka idon injina masu juyawa a hankali a fuskar kwance. Sabanin na’urorin firikwensin tsaye kaɗai, wannan transducer ɗin an inganta shi musamman don aikace-aikacen kwance kamar injinan ruwa (hydro turbines) da manyan busar masana’antu, inda dole ne a bi diddigin girgiza a mitoci ƙanana kamar 0.5 Hz don tsaro. Ta hanyar amfani da ci-gaban fasahar seismic, yana samar da bayanan saurin murfi na injin (casing velocity data) masu ƙuduri mai yawa, wanda ke ba ƙungiyoyin gyara damar gano rashin daidaituwa da amsawar gini (structural resonances) kafin su haifar da tsayawar aiki ba-zata.

Saitin Fasaha

Wannan 330505-02-02-00 yana da daidaitaccen ƙira na injiniya da aka sadaukar don haɗin kwance. Zaɓin kusurwar hawa "-02" yana fayyace daidaiton digiri 90° a kwance (±10°), wanda ke tabbatar da mafi girman hankali wajen lura da motsin gefe-zuwa-gefe na injina. Wannan samfurin yana amfani da igiyar dunƙulewar cikin gida ta 3/8-24 UNF-2B kuma ana ba da shi ba tare da madaidaicin haɗa waje ba (zaɓin -00). An rufe shi da bakin karfen jerin 300 tare da mahaɗin Mil-C-5015 mai fil 2 da aka rufe hermetically, wanda ke kiyaye ingancin sigina sosai a kan dogayen igiyoyi har zuwa mita 305 idan aka yi amfani da shi tare da na’urorin saka idon Bently Nevada 3500/46M.

Ƙayyadaddun Bayanai na Fasaha

Jagorar Shigarwa & Kula da Na'ura

Domin samun auna na kwance daidai, 330505-02-02-00 dole ne a daure ta da ƙarfi tare da iyakar ƙarfin murɗawa na 46 kg·cm. Dole ne tushen da za a daura ta ya kasance mai tsabta kuma lebur domin tabbatar da watsawar sigina na manyan mitoci (high-frequency). A matsayinta na na’urar firikwensin da ake ɗaura a kwance (-02), dole ne a daidaita ta cikin ±10° na layin kwance. Masana fasaha ya kamata su yi amfani da igiyoyin lantarki masu kariya (shielded cabling) don gudu na nisan mita 305 mafi yawa domin kare bayanan ƙaramin mita (low-frequency data) daga tsangwamar lantarki (electromagnetic interference), tare da tabbatar da cewa mahaɗin hermetic mai fil 2 an matse shi sosai domin kiyaye ƙimar danshi na 100%.

Fa'idodin Injiniya

Wannan 330505-02-02-00 yana bambance kansa da MTBF na sa’o’i 50,000 da kuma kyakkyawan daidaiton girman sigina (amplitude linearity) na (±3%). Gidansa na bakin karfe da aka rufe hermetically yana ba da damar aiki ba tare da yankewa ba a yanayin ɗimbin danshi da ake yawan samu a cibiyoyin ƙarfin ruwa (hydro-power). Tare da ƙaramin fitar juriya (output impedance) na 100 Ω, wannan na’urar firikwensin tana sauƙaƙa watsawar sigina mai tsafta a nisan da ya yi tsawo, wanda ya sanya ta ta zama ka’idar masana’antu (industry standard) don hangen nesa na gyare-gyare (predictive maintenance) a manyan injinan juyawa na kwance.

Tambayoyin Fasaha (FAQs)

Q1: Me ya sa daidaita kusurwar hawa ta digiri 90° yake da muhimmanci?
A1: Ana daidaita na’urorin firikwensin na kwance (horizontal sensors) a ciki don su daidaita tasirin nauyi a daidaiton digiri 90°; amfani da na’urar tsaye (vertical sensor) a kwance zai sa nauyin seismic ya bugi ƙasa, wanda zai haifar da matsayin "Not OK".

Q2: Shin wannan na’urar firikwensin tana buƙatar wutar lantarki daga waje?
A2: Ana samun masa wutar aiki ne daga wutar -24 VDC da na’urar saka idon Bently Nevada ke bayarwa, wadda ke haifar da halayyar foltage na bias -12 VDC don saka idon lafiyar kewaye (circuit health monitoring).

Q3: Yaya yake magance matakan girgiza masu tsanani?
A3: 330505-02-02-00 na da ƙarfi wajen jure girgiza har zuwa 100g peak, wanda ke kare ƙananan abubuwan piezo-seismic na ciki daga lalacewa lokacin farawar inji ko yanayin tashin wutar lokaci-kaɗan.