330505-03-02-00 Bently Nevada na'urar firikwensin injin turbin na ruwa 0.5Hz

Takaitaccen Bayanin Samfuri

Wannan 330505-03-02-00 na'urar auna saurin girgiza mai inganci sosai ce wadda kamfanin Bently Nevada ya ƙera don sa ido kan injuna masu juyawa a hankali daga matsayi da aka juya. Ba kamar na'urorin auna girgiza na tsaye na yau da kullum ba, an daidaita wannan maida-sigina musamman don shigarwa na 180°, abin da ya sa ya dace sosai don sa ido a ƙarƙashin gidajen ɗaukar nauyi na injinan niƙa na wutar lantarki ta ruwa ko manyan fankoki. Ta hanyar ɗaukar girgiza a mitoci ƙanana kamar 0.5 Hz, tana samar da bayanan saurin murfin jiki masu ƙuduri mai yawa, wanda ke bai wa ƙungiyoyin kiyayewa damar gano rawar tsari da rashin daidaiton inji kafin su haifar da gagarumin lalacewa.

Saitin Fasaha

Wannan 330505-03-02-00 yana da ƙirar inji mai daidai wadda aka ƙera musamman don haɗawa a yanayin da aka juya. Zaɓin kusurwar shigarwa "-03" yana fayyace daidaiton juyawa na 180° (±10°), yana tabbatar da cewa nauyin girgiza na ciki sun daidaita da ƙarfin nauyi yadda ya kamata a matsayi na juye. Wannan samfurin yana amfani da zaren shigarwa na ciki 3/8-24 UNF-2B kuma ana kawo shi ba tare da na’urar haɗa waje ba (zaɓin -00). Ana sanya shi a cikin ƙarfen bakin karfe jerin 300 tare da mahaɗin Mil-C-5015 mai fil biyu da aka rufe cikakke, wanda ke sa na’urar ta ci gaba da kiyaye ingancin sigina a mataki mai kyau a kan dogayen igiyoyi har zuwa mita 305 idan aka haɗa shi da na’urorin duba Bently Nevada 3500/46M.

Ƙayyadaddun Bayanai na Fasaha

Jagorar Shigarwa & Kula da Na'ura

Don samun daidaitattun bayanai a cikin aikace-aikacen da aka juya, na'urar nan 330505-03-02-00 dole ne a girka shi a ƙarfi (rigidly) tare da iyakar ƙarfin juyawa (maximum torque) na 46 kg·cm. Dole ne tushe na girkawa ya kasance mai tsabta kuma lebur domin kauce wa asarar siginar manyan mitoci (high-frequency signal loss). A matsayinsa na firikwensin da ake girkawa a juye (-03, inverted-mount sensor), dole ne a daidaita shi cikin iyakar ±10° daga aibirin tsaye na digiri 180°. Ya kamata masu fasaha su yi amfani da igiyoyin da aka keɓance (shielded cabling) don dogayen tazarar wayoyi domin kare bayanan ƙananan mitoci daga EMI, kuma su tabbatar cewa an haɗa mahaɗin hermetic 2-pin connector da ƙarfi domin kiyaye ƙimar sa ta 100% danshin dangi (relative humidity rating).

Fa'idodin Injiniya

Wannan 330505-03-02-00 yana bambanta da sauran su ta dalilin ƙarancin canjin zafi ƙwarai (ultra-low thermal drift, ±0.015% a kowane °C) da kuma kyakkyawar layadaddiyar girman sigina (exceptional amplitude linearity, ±3%). Gidansa na bakin ƙarfe da aka rufe gaba ɗaya (hermetically sealed stainless steel housing) yana ba da damar aiki ba tare da yankewa ba a muhallan da ke da danshi sosai (saturated humidity) da ake yawan samu a cibiyoyin samar da wutar ruwa (hydro-power facilities). Tare da ƙarfinsa na jure wutar lantarki har zuwa 500 V RMS (dielectric strength) da kuma juriya mai ƙarfi ga girgiza, wannan firikwensin yana samar da ƙarfi da karko da ake buƙata don saka idanu daga wuri guda kan muhimman kayan aiki masu nisa, ba tare da lalacewar sigina ba a kan dogon tazara.

Tambayoyin Fasaha (FAQs)

Q1: Me ya sa zaɓin girkawa na digiri 180° yake da muhimmanci?
A1: Na'urorin auna sauri (velocity sensors) suna ƙunshe da taro na seismic da aka dakatar; zaɓin -03 yana tabbatar da cewa wannan taron ya kasance a madaidaicin matsayinsa dangane da nauyi (gravity) idan an girka firikwensin a ƙasa-zuwa-sama (upside down), ta haka yana hana firikwensin ya ba da rahoton matsayin "Not OK".

Q2: Zan iya amfani da wannan firikwensin a mitoci da suka fi 1000 Hz yawa?
A2: Duk da yake firikwensin yana aiki a manyan mitoci (higher frequencies), an inganta daidaiton da aka daidaita da shi ne don zangon 0.5 zuwa 1000 Hz, wanda ke rufe manyan mitocin girgiza (fundamental vibration frequencies) na injinan da ke juyawa a hankali (slow-turning machinery).

Q3: Yaya wannan na'urar firikwensin ke mu'amala da danshi (humidity)?
A3: 330505-03-02-00 an rufe shi gaba ɗaya (hermetically sealed) kuma an ƙididdige shi don jure har zuwa 100% danshin dangi (relative humidity, ba a cikin ruwa ba), wanda ke sanya shi ya dace da muhallan danshi da ake samu a masana'antar samar da wutar lantarki ta ruwa (hydroelectric plants).