Cov kev paub ntawm cov khoom siv ultrasonic rho tawm
Cov khoom siv ultrasonic rho tawm yog cov khoom ntim tsis tseem ceeb hauv cov khoom ntawm cov tshuaj suav tshuaj. Nws yog qhov tsim nyog rau kev rho tawm ntawm cov khoom xyaw zoo ntawm cov tshuaj hauv Suav. Nws yog cov txheej txheem tshiab thiab cov txheej txheem tshiab rau cov tshuaj suav tshuaj ib txwm ua kom hloov cov tsoos dej-ua kom dej cawv ntuj los nag txoj kev rho tawm, thiab siv cov khoom siv rho tawm no zoo heev nws txo cov teeb meem ntawm cov tsoos tawm tuaj yav dhau los, thiab ua rau cov ua haujlwm sai dua thiab purer.
Nws tuaj yeem muab sib zog los ntawm ultrasonic yoj ntawm 40 ℃ -50 ℃ dej kub F, rhaub ntawm qhov kub tsis muaj dej, thiab yuav tsis rhuav tshem qee yam tshuaj ntsuab ntawm cov khoom siv hauv Suav uas ua rau kub tsis ruaj, yooj yim rau hydrolyze lossis oxidize. Ultrasound tuaj yeem txhawb nqa qhov tawg ntawm cov nroj tsuag hlwb thiab txhim kho kev ua tau zoo ntawm cov tshuaj suav ib txwm muaj. Ultra-acoustics yog ib qho tseem ceeb ceg lossis ib feem ntawm acoustics. Nws cov ntsiab lus tseem ceeb yog kawm txog tiam, kev xa, txais tos thiab cuam tshuam ntawm ultrasound hauv ntau yam tshuaj, ntau cov teebmeem thiab cov ntawv tsim tawm. Lub suab nthwv dej yog cov khoom siv vuam tshuab, uas yog kev tshaj tawm ntawm cov neeg kho tshuab kev co hauv kev tshaj tawm xov xwm.
Ua haujlwm cov cai ntawm cov khoom siv ultrasonic rho tawm
1. Ua kom ceev txav ntawm txav nruab nrab. Thaum ultrasonic nthwv dej nrog lub suab nrawm ntau dua 20 KHz yog tshaj tawm hauv dej lossis nruab nrab, raws li Huygens yoj lub ntsiab lus, cov khoom nruab nrab nrog cov tseem ceeb zoo ntawm cov khoom siv tshuaj yuav txav mus rau ntawm lub nthwv dej ntawm nruab nrab, ua rau nruab nrab txav. Lub zog ntawm lub particle tau txais loj loj acceleration thiab kev tig tau lub zog. Qhov nrawm nrawm ntawm qhov khoom tawg yog feem ntau suav tias muaj ntau tshaj li ob txhiab npaug ntawm kev ua kom nrawm ntawm lub ntiajteb txawj nqus. Vim tias cov kua nruab nrab ntawm cov nruab nrab ua rau cov xaj ntawm cov khoom siv tshuaj hauv cov khoom siv tshuaj uas muaj lub zog ultrasonic, lawv tau txais lub zog loj thiab lub zog kev ua kom muaj zog, thiab khiav tawm ntawm cov tshuaj muaj txiaj ntsig sai thiab pub dawb hauv dej.
2. Cavitation. Kev nthuav tawm ntawm ultrasonic tsis nyob hauv nruab nrab ua kua tsim tawm tshwj xeeb" cavitation nyhuv" ;." cavitation nyhuv" tsis tu ncua tsim ntau qhov suav tsis tau microcavities nrog lub siab sab hauv ntawm ntau txhiab ntawm cov huab cua thiab tsis tu ncua" cov khoom tawg GG; txhawm rau tsim lub zog tsom me me uas ua rau Suav cov tshuaj ntsuab tshuaj ntsuab. , Yog li ntawd cov tshuaj siv tshuaj yog" bombarded" kom dim ntawm, thiab daim ntawv cog tshuaj muaj lub ntsej muag tsis tu ncua, thiab cov khoom siv tshuaj uas tsis yog ib feem ntawm cov qauv ntoo tau sib cais tsis tu ncua. Ua kom lub siab sai thiab rho tawm ntawm cov khoom xyaw cog.
3. Homogenization ntawm ultrasonic kev co. Ua qhov txiav txim ntawm txhua kis hauv tus qauv nruab nrab zoo ib yam, thiab ua rau tag nrho cov qauv rho tawm kom ntau. Txheeb suav, nyob rau hauv qhov kev txiav txim ntawm ultrasonic teb, cov tshuaj muaj tshuaj nyob hauv Suav cov ntaub ntawv tshuaj tsis tsuas tau lawv tus kheej lub zog loj thiab lub zog kev ua zog raws li cov khoom nruab nrab, tab sis kuj tseem muaj zog sab nraud quab yuam cuam tshuam los ntawm" cavitation effect" ;, yog li lawv tuaj yeem ua tau zoo thiab muaj kev sib cais.
