Monga tonse tikudziwa, mawu omwe anthu amamva ndi zizindikiro za mafunde a acoustic zomwe zimakhala ndi ma frequency kuyambira 20 Hz mpaka 20,000 Hz. Mafunde a acoustic omwe amakhala ndi ma frequency opitilira 20,000 Hz amatchedwa mafunde a ultrasonic. Mafunde a acoustic amafalikira motalikirapo mu mawonekedwe a sine wave, kusinthana pakati pa amphamvu ndi ofooka pamene akuyenda. Zizindikiro zofooka za mafunde a acoustic zikagwira ntchito pamadzi, zimapangitsa kuti pakhale kupanikizika kwina mkati mwa madzi, ndikupanga thovu laling'ono. Mosiyana ndi zimenezi, zizindikiro zamphamvu za mafunde a acoustic zimapangitsa kuti madziwo ayambe kugwedezeka, zomwe zimapangitsa kuti thovu laling'onoli ligwe. Kafukufuku wasonyeza kuti mafunde a ultrasonic akagwira ntchito pamadzi, kugwa kwa thovu lililonse kumapanga mafunde amphamvu kwambiri, omwe amatsatiridwa ndi kutentha kwakukulu nthawi yomweyo komanso kupsinjika kwa mpweya wofika masauzande ambiri. Chochitika ichi chimadziwika kuti "cavitation effect".Kuyeretsa kwa akupangaimagwiritsa ntchito mafunde ogwedezeka omwe amapangidwa ndi thovu lophulika lomwe lili mumadzimadzi kuti iyeretse ndikusaka malo amkati ndi akunja a zida zogwirira ntchito.
Mafunde a ultrasound angagawidwe m'magulu atatu: mafunde a infrasonic, mafunde a phokoso ndi mafunde a ultrasound. Mafunde a infrasonic ndi otsika kuposa 20 Hz, ndipo mafunde a ultrasound ndi opitilira 20 kHz. Nthawi zambiri, khutu la munthu silingathe kuzindikira mafunde a infrasonic ndi mafunde a ultrasound. Chifukwa cha mafunde awo okwera komanso kutalika kwa nthawi yochepa, mafunde a ultrasound ali ndi kufalikira kwabwino komanso mphamvu yolowera mkati.
Mfundo yogwirira ntchito ya chotsukira cha ultrasonic ndi iyi: chosinthira mawu chimasintha mphamvu ya mawu kuchokera ku gwero la ma frequency amphamvu kwambiri kukhala kugwedezeka kwa makina. Kugwedezeka kumeneku kumafalikira kudzera pakhoma la thanki yotsukira, ndikutulutsa mafunde a ultrasound kupita ku yankho lotsukira mkati mwa thanki. Pansi pa kuwala kwa mafunde a ultrasound, thovu laling'ono mumadzimadzi limapitirira kugwedezeka chifukwa cha mafunde a phokoso.
Pamene mphamvu ya mawu kapena mphamvu ya mawu ifika pamlingo winawake, thovulo limakula mofulumira kenako limagwa mwadzidzidzi. Panthawi ya kugwa kwa thovulo, mafunde ogwedezeka amapangidwa, zomwe zimapangitsa kuti mphamvu ya mawu ikhale yosiyana ndi madigiri 10.¹²Pa mpaka 10¹³Pa mozungulira thovu. Kupanikizika kwakukulu komwe kumachitika chifukwa cha ultrasound cavitation kumaphwanya zinthu zodetsa zomwe sizisungunuka ndikuzifalitsa mu yankho.
Kumbali imodzi, mafunde a ultrasound amaswa mgwirizano pakati pa zinthu zodetsa ndi pamwamba pa zinthu zoyeretsedwa. Kumbali ina, amachititsa kuti zigawo zodetsazo zilephereke kutopa, zomwe zimapangitsa kuti zichotsedwe. Kugwedezeka kwa thovu la mpweya kumatsuka malo olimba. Ming'alu ikaonekera m'zigawo zodetsa, thovu limalowa m'mipata ndikugwedezeka kuti lichotse dothi. Kutsegula kwa madzi kumathandizanso kufalikira mwachangu ndi kusakaniza kwa madzi awiri pamalo awo. Tinthu tating'onoting'ono tokhala ndi mafuta tikamamatira pamwamba pa zinthu zoyeretsedwa, mafutawo amakhalaemulsifiedndipo tinthu tolimba timagwa mwachibadwa. Pamene mafunde a ultrasound akuyenda mu yankho loyeretsera, amapanga mphamvu ya mawu yosinthasintha yabwino ndi yoipa, ndikupanga ma jet omwe amakhudza zinthu zoyeretsedwa. Pakadali pano, zotsatira zosalunjika zimapangitsa kuti mawu amveke bwino komanso kuti mawu amveke bwino, ndipo ma ultrasound cavitation amapanga ma micro-jet othamanga kwambiri pamalo olumikizirana ndi madzi olimba. Zotsatira zonsezi zimatha kuswa zodetsa, kuchotsa kapena kufooketsa zigawo za dothi pamwamba, kuwonjezera kusakaniza ndi kufalikira, kufulumizitsa kusungunuka kwa dothi losungunuka, ndikuwonjezera ntchito yoyeretsa ya sopo wa mankhwala.
Tinganene kuti kuyeretsa kumachitika kulikonse komwe madziwo angafike ndipo pali malo omveka. Ukadaulo uwu ndi woyenera kwambiri poyeretsa ziwalo zomwe zili ndi mawonekedwe ovuta kwambiri pamwamba. Kuphatikiza apo, kugwiritsa ntchito ukadaulo uwu kungachepetse kugwiritsa ntchito mankhwala osungunulira, motero kuchepetsa kwambiri kuipitsa chilengedwe.
Malangizo Ogwiritsira Ntchito Otsuka a Ultrasonic
Magetsi a chipangizo chotsukira cha ultrasonic ndi chotenthetsera chake chamagetsi ayenera kukhala ndi zipangizo zodalirika zokhazikitsira pansi.
Musagwiritse ntchito chotsukira cha ultrasonic popanda madzi oyeretsera. Musayatse switch ya ultrasound ngati thanki yoyeretsera sinadzazidwe ndi yankho lokwanira loyeretsera.
Pa zipangizo zoyeretsera zomwe zili ndi mawotchi otenthetsera, chotenthetsera sichiyenera kuyatsidwa ngati palibe madzi mkati.
Musamenye pansi pa thanki yoyeretsera ndi zinthu zolemera monga zitsulo, kuti mupewe kuwonongeka kwa ma transducer chips.
Jenereta ya ultrasonic iyenera kulumikizidwa ku dera lodziyimira pawokha la mphamvu la 220V/50Hz, lokhala ndi chokhazikika cha voltage chomwe chili ndi mphamvu yoposa 2000W.
Tsukani pansi pa thanki yoyeretsera nthawi zonse kuti mupewe zinyalala zambiri komanso dothi lochuluka.
Mukasintha madzi oyeretsera, yambani kaye makina opangira ma ultrasonic musanayike zinthu mu thanki kuti ziyeretsedwe.
Nthawi yotumizira: Juni-12-2026