超聲波引入溶液中時，會產生交替壓力，用于空化閾的聲波在液體中傳播時能夠產生空化氣泡并且能顯著提高氣體從溶液中到氣泡的傳質速率?？栈瘹馀萦扇芤褐形⑿〉臍夂水a生，在聲波的稀疏相內由于張應力（負壓力）的作用會產生這些空泡。如果張應力在空泡形成后繼續(xù)存在，此時空化泡就會擴張到初始尺寸的許多倍。在這種情況下，空化泡保持球形結構，之后不斷地增長、振動、崩潰。超聲波作用時，溶液中氣體成分可通過氣-液界面“定向擴散”進入空化氣泡，空化氣泡進人生長階段，當空化氣泡在溶液表面崩潰時，氣體會從氣泡中逸出，這就造成了脫氣作用。when the ultrasonic wave is introduced into the solution, the alternating pressure will be generated. when the acoustic wave for cavitation threshold propagates in the liquid, cavitation bubbles can be generated and the mass transfer rate of gas from the solution to the bubbles can be significantly improved. cavitation bubbles are generated by tiny gas nuclei in the solution, and these bubbles will be generated due to the action of tensile stress (negative pressure) in the sparse phase of the acoustic wave. if the tensile stress continues to exist after the formation of the cavitation bubble, the cavitation bubble will expａnd to many times the initial size. in this case, the cavitation bubble maintains a spherical structure, and then continuously grows, vibrates and collapses. under the action of ultrasound, the gas components in the solution can enter the cavitation bubble through the gas-liquid interface directional diffusion, and the cavitation bubble enters the growth stage. when the cavitation bubble collapses on the surface of the solution, the gas will escape from the bubble, which causes degassing.
脫氣超聲波清洗機
degassing ultrasonic cleaning machine
超聲波脫氣設備優(yōu)點，泡沫為氣泡的大量聚集，超聲波脫氣氣設備是在泡沫生成前期、氣泡未大量聚集前對液體進行消泡、脫氣，或是對溶解、混合在液體內的氣體進行消泡、脫氣。整個過程不使用任何消泡劑，是的物理消泡方式，也可稱作機械消泡方式。對于已經生成的表面泡沫，該設備作用不明顯，需要配合消泡膜方式共同加以解決。
advantages of ultrasonic degassing equipment: foam is a large number of bubbles. ultrasonic degassing equipment is used to defoaming and degassing the liquid at the early stage of foam generation and before the bubbles are accumulated in large numbers, or to defoaming and degassing the gas dissolved and mixed in the liquid. the whole process does not use any defoamer. it is a complete physical defoamer, also known as mechanical defoamer. for the surface foam that has been generated, the effect of this equipment is not obvious, and it needs to be solved together with defoaming film.
脫氣主要運用的是超聲的“定向擴散”，一旦產生空化，內部還是有空氣，在一些熔融液脫氣純化應用中以不產生空化更佳。液體的空氣排掉，減少超聲波空化反應產生的氣泡的阻力，增強超聲波清洗機的清洗效率。還有一種作用就是超聲波清洗機工作時間久了會產生一種超聲波疲勞，減低清洗效果和效率，排氧脫氣功能還可以消除這種超聲波疲勞。
ultrasonic directional diffusion is mainly used for degassing. once cavitation occurs, there is still air inside. in some degassing and purification applications of molten liquid, it is better not to generate cavitation. the air of the liquid is discharged to reduce the resistance of the bubbles generated by the ultrasonic cavitation reaction and enhance the cleaning efficiency of the ultrasonic cleaner. another function is that the ultrasonic cleaning machine will produce ultrasonic fatigue after working for a long time, reducing the cleaning effect and efficiency. the oxygen exhaust and degassing function can also eliminate this ultrasonic fatigue.
綜上，可以看出超聲波清洗設備的脫氣功能是非常強大的，能更好的達到清洗目的，提高清洗效果。
in conclusion, it can be seen that the degassing function of the ultrasonic cleaning equipment is very powerful, which can better achieve the cleaning purpose and improve the cleaning effect.
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關鍵詞：超聲波清洗機 清洗設備