超聲波引入溶液中時，會產生交替壓力，用（yòng）於（yú）空化閾的聲波在液體中傳播時能夠（gòu）產生空化氣（qì）泡並且能（néng）顯著提高氣體從溶液中到氣泡的傳質速率。空化氣泡（pào）由溶（róng）液中微小的氣核產生，在聲波的稀（xī）疏（shū）相內由於張應力（負壓力）的作用會產生這些空泡。

When the ultrasonic wave is introduced into the solution, it will generate alternating pressure. When the sound wave used for cavitation threshold propagates in the liquid, it can generate cavitation bubbles and significantly improve the mass transfer rate of gas from the solution to the bubbles. Cavitation bubbles are generated by tiny gas nuclei in the solution. These bubbles will be generated in the sparse phase of sound wave due to the effect of tensile stress (negative pressure).

如（rú）果張應力在空（kōng）泡形（xíng）成後繼續存在，此時空（kōng）化泡就會擴張到（dào）初始尺寸的許多倍。在這種情況下（xià），空化（huà）泡保持（chí）球形結（jié）構（gòu），之後不斷（duàn）地增長、振（zhèn）動、崩（bēng）潰。超聲波作用時，溶液中（zhōng）氣（qì）體成分可通過（guò）氣-液（yè）界麵“定（dìng）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麵崩潰時，氣體會從氣泡中逸出，這就造成了脫氣作用。

If the tensile stress continues to exist after the cavitation is formed, the cavitation bubble will expand to many times its initial size. In this case, the cavitation bubble maintains a spherical structure, and then grows, vibrates and collapses continuously. Under the action of ultrasonic, the gas components in the solution can enter the cavitation bubble through the "directional diffusion" of the gas-liquid interface, 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, resulting in degassing.

超聲（shēng）波脫氣設備優點，泡沫為氣泡的大量聚集，超聲波脫氣氣（qì）設備是在（zài）泡沫生成前期、氣泡（pào）未大量聚集前對液體進行消泡、脫氣（qì），或是對溶解、混合在液體內的氣體進行消泡、脫（tuō）氣。

Advantages of ultrasonic degassing equipment: foam is a large number of bubbles gathered. Ultrasonic degassing equipment is used to defoaming and degassing the liquid in the early stage of foam generation and before a large number of bubbles gather, or to defoaming and degassing the gas dissolved and mixed in the liquid.

整個過（guò）程不使用任何消泡劑，是完全的（de）物理消泡方式，也可稱作（zuò）機械消泡方式。對於（yú）已經生成的表麵泡沫，該設備作用不明顯，需要配合消泡膜方式共（gòng）同加以解決。

The whole process does not use any defoaming agent, which is a complete physical defoaming method, also known as mechanical defoaming method. For the generated surface foam, the equipment has no obvious effect, which needs to be solved together with the defoaming film method.

脫氣主要運用的是超聲的“定向擴散”，一（yī）旦產（chǎn）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（shēng）空化佳。

Degassing mainly uses ultrasonic "directional diffusion". Once cavitation occurs, there is still air inside. In some applications of degassing and purification of molten liquid, it is best not to produce cavitation.

液（yè）體的（de）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（hái）有一種作用就是（shì）超聲波清洗機工（gōng）作時間久了會（huì）產生一（yī）種超（chāo）聲波疲勞，減（jiǎn）低清洗效果和（hé）效率，排氧脫氣功能還可以消除這種超聲波疲（pí）勞。

The liquid air is discharged, which reduces the resistance of bubbles generated by ultrasonic cavitation reaction and enhances the cleaning efficiency of ultrasonic cleaning machine. Another function is that the ultrasonic cleaning machine will produce a kind of ultrasonic fatigue after working for a long time, which will reduce the cleaning effect and efficiency. The oxygen and degassing function can also eliminate this kind of ultrasonic fatigue.

綜（zōng）上，可以看出超聲波清洗設（shè）備的脫氣功能是非常強（qiáng）大（dà）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 ultrasonic cleaning equipment is very powerful, which can better achieve the purpose of cleaning and improve the cleaning effect.

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