有色金属科学与工程
有色金屬科學與工程
유색금속과학여공정
Nonferrous Metals Science and Engineering
2015年
5期
80-84
,共5页
超声空化%超声波功率%气含率%发泡
超聲空化%超聲波功率%氣含率%髮泡
초성공화%초성파공솔%기함솔%발포
ultrasonic cavitation%ultrasonic power%gas hold-up%foaming
通过使用设计装配的实验设备,研究不同条件下超声波空化作用所能产生气泡的能力,以及超声波对充气体系下的溶液气含率的影响.结果表明:超声波空化作用产生气泡的能力与溶液中气体的溶解量直接相关; 超声波的功率对超声波空化作用产生气体的体积影响比较大,28 kHz的变幅杆超声空化作用产生的气泡体积要高于20 kHz 的变幅杆;超声波作用于不同浓度的MIBC的水溶液,空化作用产生的气泡体积没有太大变化;在外充气条件下,发现超声波作用可以有效地增大溶液的气含率.
通過使用設計裝配的實驗設備,研究不同條件下超聲波空化作用所能產生氣泡的能力,以及超聲波對充氣體繫下的溶液氣含率的影響.結果錶明:超聲波空化作用產生氣泡的能力與溶液中氣體的溶解量直接相關; 超聲波的功率對超聲波空化作用產生氣體的體積影響比較大,28 kHz的變幅桿超聲空化作用產生的氣泡體積要高于20 kHz 的變幅桿;超聲波作用于不同濃度的MIBC的水溶液,空化作用產生的氣泡體積沒有太大變化;在外充氣條件下,髮現超聲波作用可以有效地增大溶液的氣含率.
통과사용설계장배적실험설비,연구불동조건하초성파공화작용소능산생기포적능력,이급초성파대충기체계하적용액기함솔적영향.결과표명:초성파공화작용산생기포적능력여용액중기체적용해량직접상관; 초성파적공솔대초성파공화작용산생기체적체적영향비교대,28 kHz적변폭간초성공화작용산생적기포체적요고우20 kHz 적변폭간;초성파작용우불동농도적MIBC적수용액,공화작용산생적기포체적몰유태대변화;재외충기조건하,발현초성파작용가이유효지증대용액적기함솔.
Through using the equipment designed, the ability of ultrasonic to generate bubbles in different conditions was investigated. The effect of ultrasonic on the gas hold-up of solution in the state of inflation was investigated. The result showes the ability of ultrasonic to generate bubbles is directly related to the amount of gas dissolved in the solution. The power of ultrasonic has a considerable effect on the quantity of the gas produced by ultrasonic cavitation. The volume of bubbles generated by ultrasonic cavitation under the booster of 28 kHz is bigger than the booster of 20 kHz. When the ultrasonic acts on the solution of MIBC, the volume of gas produced by cavitation varies little. Under the condition of aeration, the ultrasonic can enhance the gas hold-up of solution effectively.
