Mamita Oyendera a Ultrasonic

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Chiyambi cha Radar ya Mafunde Otsogozedwa

Guided Wave Radar (GWR) ndi chida choyezera mulingo wa microwave chomwe chimadziwika ndi kugwiritsa ntchito probe yachitsulo (waveguide) kuwongolera kufalikira kwa chizindikiro cha microwave. Chimalola kuyeza molondola mulingo wamadzimadzi, malo olumikizirana, kapena kuchuluka kwa zinthu monga zakumwa, tinthu tolimba, kapena slurries. Mosiyana ndi mita ya radar yosakhudzana ndi kukhudzana, zizindikiro za microwave za GWR sizimafalikira momasuka mumlengalenga koma zimayenda molunjika motsatira probe, zomwe zimapatsa ubwino wapadera m'mikhalidwe yovuta yogwirira ntchito. Pansipa pali mawu oyamba ofotokoza mfundo yake yogwirira ntchito, zigawo zazikulu, mawonekedwe ofunikira, zochitika zogwiritsidwa ntchito, ndi zoletsa.

I. Mfundo Yogwirira Ntchito

Radar ya Guided Wave imapanga zizindikiro za microwave zomwe zimakhala ndi ma frequency apamwamba (nthawi zambiri 6GHz kapena 26GHz) kudzera mu module yotumizira. Zizindikirozi zimatsogozedwa kudzera mu ma probe apadera achitsulo (monga zingwe zachitsulo, ndodo zolimba, zingwe za coaxial) kupita pamwamba pa medium. Zizindikiro za microwave zikakumana ndi kulumikizana pakati pa medium ndi mpweya, gawo la chizindikirocho limawonetsedwa ndikubwerera m'mbuyo motsatira probe kupita ku module yolandirira. Chidacho chimawerengera kutalika kwa mulingo poyesa kusiyana kwa nthawi (kapena kusiyana kwa ma frequency) pakati pa kutumiza chizindikiro ndi kuwunikira, kuphatikiza ndi liwiro lofalitsa ma microwave mu medium.

 

  • Fomula Yaikulu: Kutalika kwa mulingo H=2v×t​, pomwe v ndi liwiro lofalikira la ma microwave mu probe, ndipo t ndi nthawi yobwerera ndi kubwerera ya chizindikiro.
  • Kuyang'ana Zizindikiro: Chofufuzirachi chimaletsa mphamvu ya microwave kukhala pamalo ochepa, kupewa vuto la kusiyana kwa zizindikiro za radar zosakhudzana ndi kufalikira mumlengalenga, zomwe zimapangitsa kuti zizindikiro zowunikira zikhale zolimba komanso zokhazikika.

II. Zigawo Zapakati

Radar ya Guided Wave ili ndi kapangidwe kakang'ono, komwe kali ndi zigawo zotsatirazi:

 

  1. Chida Chamagetsi: Chimayang'anira kupanga, kutumiza, kulandira, ndi kukonza zizindikiro za microwave. Chimaphatikizapo microprocessor yomangidwa mkati yowerengera deta ndi kutulutsa (monga, zizindikiro za 4-20mA, HART, RS485).
  2. Probe (Waveguide): "Njira yotumizira mauthenga" ya zizindikiro za microwave, ndi mitundu yodziwika bwino kuphatikizapo:
    • Ma Rigid Rod Probes: Oyenera zakumwa zokhuthala pang'ono komanso zinthu zosagwedezeka, zomwe zimapangitsa kuti pakhale kugwedezeka kwamphamvu.
    • Ma Probes a Chingwe cha Chitsulo: Abwino kwambiri pa matanki akuya, media yokhuthala kwambiri, kapena omwe ali ndi zinthu zolimba zopachikidwa, zomwe zimapangitsa kuti zikhale zosavuta kugwiritsa ntchito.
    • Ma Coaxial Probes: Zizindikiro zimayenda pakati pa ma conductor amkati ndi akunja, zoyenera kugwiritsa ntchito ma dielectric constant media ochepa (monga mafuta opepuka, mpweya wosungunuka) wokhala ndi mphamvu yowonjezereka yoletsa kusokoneza.
  3. Flange/Interface Yoyikira: Imateteza chidacho pamwamba pa thanki, ndi zinthu zomwe zasankhidwa kutengera kuwononga kwapakati (monga chitsulo chosapanga dzimbiri cha 316L, Hastelloy).

III. Makhalidwe Ofunika

1. Mphamvu Yolimba Yoletsa Kusokoneza Zinthu Zovuta

  • Zizindikiro za microwave zimayenda motsatira probe, zomwe zimachepetsa mphamvu ya zinthu zachilengedwe monga nthunzi, fumbi, thovu, kapena nkhungu. Zimakhalabe zokhazikika ngakhale m'malo okhala ndi thovu lambiri (monga matanki ophikira mowa) kapena pamene zinthuzo zikugwedezeka kwambiri.
  • Chitetezo ku kusokonezedwa ndi nyumba zamkati mwa thanki (monga zoyambitsa, ma baffle), pamene zizindikiro zikufalikira motsatira probe, kupewa mawu abodza omwe amapezeka mu radar yosakhudzana ndi kukhudzana.

2. Kulondola Kwambiri ndi Kukhazikika

  • Kulondola kwa muyeso nthawi zambiri kumayambira pa ±0.05%FS mpaka ±0.1%FS, ndipo zolakwika zobwerezabwereza zimakhala zochepa ngati ±0.02%FS, zomwe zimapangitsa kuti zikhale bwino kuposa mitundu ina ya radar yomwe siikhudzana ndi kukhudzana.
  • Mphamvu ya chizindikiro chowunikira imadalira makamaka kukhudzana kwa probe ndi sing'anga, zomwe zimapangitsa kuti ikhale yoyenera kugwiritsa ntchito magetsi osasinthasintha (monga mafuta, mpweya wosungunuka).

3. Kusinthasintha ku Zofalitsa Zosiyanasiyana ndi Malo Ovuta Kwambiri

  • Kugwirizana kwapakati: Kutha kuyeza zakumwa (kuphatikizapo kukhuthala kwakukulu, zinthu zopanga ma crystallizing monga madzi a syrup ndi soda), tinthu tolimba (monga ma pellets apulasitiki, ufa wa malasha), slurry (monga matope, madzi a zipatso), ndi zolumikizira (monga, zolumikizira mafuta ndi madzi).
  • Kulekerera Zachilengedwe: Imapirira kutentha kwambiri (-50℃ mpaka 400℃), kupsinjika kwakukulu (mpaka 40MPa), komanso malo owononga kwambiri, yoyenera ma reactor a mankhwala, matanki osungiramo zinthu zopanikizika kwambiri, ndi zina zotero.

4. Kukhazikitsa Kosinthasintha kwa Malo Otsekedwa

  • Ma probe amatha kuyikidwa m'mathanki ang'onoang'ono, ziwiya zosaoneka bwino, kapena m'ziwiya zokhala ndi zopinga zamkati, zosafuna malo otseguka pamwamba. Ndi oyenera makamaka ntchito zokonzanso kapena malo opapatiza.

IV. Zochitika Zogwiritsira Ntchito

Radar ya Guided Wave imagwiritsidwa ntchito kwambiri m'magawo otsatirawa chifukwa cha magwiridwe ake oletsa kusokonezedwa komanso kulondola kwake kwakukulu:

 

  • Makampani Opanga Mankhwala: Kuyeza mulingo mu ma reactor, matanki osungiramo zinthu okhala ndi mphamvu yotsika/yotsika, komanso kuzindikira mawonekedwe a mafuta ndi madzi.
  • Mafuta ndi Petrochemical: Kuyeza mulingo m'matanki amafuta osakonzedwa, matanki amafuta opepuka (mafuta a petulo, dizilo), ndi matanki osungiramo gasi wosungunuka.
  • Chakudya ndi Zakumwa: Kuyeza mulingo m'matanki okhala ndi thovu lochuluka (monga mowa, yogurt), matanki a madzi a manyuchi, ndi madzi a zipatso (okhala ndi zipangizo zoyezera chakudya).
  • Kuyeretsa Madzi: Kuyeza mulingo m'matanki oyeretsera zinyalala ndi m'madziwe osungira madzi, kupewa kusokoneza thovu.
  • Makampani Opanga Mphamvu: Kuyeza mulingo m'malo osungiramo ufa wa malasha ndi zitini za phulusa, ndi kuyang'anira mulingo wa boiler wotentha kwambiri.

V. Zolepheretsa

  1. Zofunikira pa Kukonza Kuti Muyeze Kukhudzana ndi Zinthu: Ma probe amakhudzana mwachindunji ndi chinthucho, amatha kuipitsidwa kapena kutsekeka chifukwa cha kukhuthala, zomwe zimafuna kutsukidwa nthawi zonse. Zinthu zowononga kwambiri zingayambitse kuwonongeka kwa probe, zomwe zimafuna zipangizo zapadera (kuwonjezera ndalama).
  2. Kuchuluka kwa Muyeso: Kuchuluka kwa malo ofunikira kumatsimikiziridwa ndi kutalika kwa probe, ndi mitundu yachikhalidwe kuyambira 0.3m mpaka 30m, yosayenera matanki akuluakulu kwambiri (radar yosakhudzana ndi makina imatha kuphimba mpaka 100m).
  3. Zoletsa pa Ntchito Zaukhondo: Pazakudya, mankhwala, ndi zina zokhudzana ndi ukhondo wapamwamba, njira zotsimikizira kuyeretsa kwa kafukufuku zimakhala zovuta, zomwe zitha kuonjezera ndalama zotsatirira malamulo (radar yosakhudzana ndi ku ...
  4. Kuopsa kwa Kuwonongeka kwa Probe: Pazochitika zomwe zimakhala ndi kugwedezeka kapena kuyenda kwa media komwe kumagwedezeka, manja oteteza probe ayenera kuyikidwa kuti asasweke chifukwa cha kugundana.

VI. Kusiyana Kwakukulu ndi Radar Yosakhudzana ndi Kulumikizana

Kuyerekeza Kukula Rada ya Mafunde Otsogozedwa Rada Yosalumikizana ndi Anthu
Kufalitsa Zizindikiro Njira yolowera motsatira chofufuzira Kufalikira kwaulere mumlengalenga
Luso Loletsa Kusokoneza Wamphamvu (wosakhudzidwa ndi thovu, nthunzi, fumbi) Zofooka (zimafuna kapangidwe ka ma frequency apamwamba kapena kukonza ma antenna)
Kuzindikira kwa Dielectric Constant Yotsika (yoyenera kugwiritsa ntchito dielectric media yotsika) Zizindikiro zapamwamba (zofooka za dielectric media zochepa)
Kusinthasintha Zofunikira Zaukhondo Zochepa (kutsimikizira kuyeretsa pafupipafupi) Zabwino kwambiri (zosakhudzana ndi munthu, zogwirizana ndi miyezo ya FDA/3-A)
Ndalama Zokonzera Pakati (kuyeretsa koyezera, kupewa dzimbiri) Zochepa (zosakhudzana, zosavala)
Magawo Oyezera Kwambiri Kawirikawiri ≤30m Mpaka 100m

Mapeto

Radar Yoyendetsedwa ndi Mafunde ndi njira yabwino kwambiri yoyezera mulingo m'malo ovuta kugwira ntchito, makamaka yopambana kwambiri m'malo okhala ndi thovu lambiri, dielectric yochepa, malo otsekedwa, kapena malo ovuta kwambiri. Komabe, momwe imayezera kukhudzana imayambitsa zosowa zosamalira komanso zoletsa kugwiritsa ntchito. Posankha zinthu zenizeni, zinthu monga mawonekedwe apakati (kukhuthala, kuwonongeka, dielectric yosasinthika), mikhalidwe yachilengedwe (kutentha, kupanikizika, malo), ndi zofunikira zaukhondo ziyenera kuyesedwa mokwanira. Ngati pakufunika, ingagwiritsidwe ntchito limodzi ndi radar yosakhudzana kuti ikwaniritse zochitika zambiri.

Nthawi yotumizira: Julayi-22-2025

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