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超声波清洗机中的脱气功能的作用有哪些?

来源:/ 时间: 2022-04-14 浏览次数: 2

超声波脱气设备优点,泡沫为气泡的大量聚集,超声波脱气气设备是在泡沫生成前期、气泡未大量聚集前对液体进行消泡、脱气,或是对溶解、混合在液体内的气体进行消泡、脱气。整个过程不使用任何消泡剂,是完全的物理消泡方式,也可称作机械消泡方式。对于已经生成的表面泡沫,该设备作用不明显,需要配合消泡膜方式共同加以解决。
The advantage of ultrasonic degassing equipment is that the foam is a large number of bubbles. The ultrasonic degassing equipment is used to defoaming and degassing liquid before the beginning of the bubble formation, before the bubbles are gathered in large quantities, or to deactivate and deactivate the gas dissolved and mixed in the liquid. The whole process does not use any defoamer. It is a complete physical defoaming method, which can also be called mechanical defoaming method. For the surface foam that has been generated, the device has no obvious effect and needs to be solved in conjunction with the defoaming film.
脱气主要运用的是超声的“定向扩散”,一旦产生空化,内部还是有空气,在一些熔融液脱气纯化应用中以不产生空化最佳。液体的空气排掉,减少超声波空化反应产生的汽泡的阻力,增强超声波清洗机的清洗效率。还有一种作用就是超声波清洗机工作时间久了会产生一种超声波疲劳,减低清洗效果和效率,排氧脱气功能还可以消除这种超声波疲劳。
Degassing mainly uses ultrasonic "directional diffusion". Once cavitation occurs, there is still air inside. In some melt degassing and purification applications, it is best not to produce cavitation. The liquid air is discharged to reduce the resistance of bubbles generated by ultrasonic cavitation reaction and enhance the cleaning efficiency of ultrasonic cleaning machine. Another function is that the ultrasonic cleaning machine will produce ultrasonic fatigue after working for a long time, which can reduce the cleaning effect and efficiency. The oxygen exhaust and degassing function can also eliminate this ultrasonic fatigue.
综上,可以看出超声波清洗设备的脱气功能是非常强大的,而纳博科超声生产的超声波清洗机都标配集成有脱气功能,能更好的达到清洗目的,提高清洗效果。
In conclusion, it can be seen that the degassing function of ultrasonic cleaning equipment is very powerful, and the ultrasonic cleaning machines produced by naboko ultrasonic are equipped with degassing function as standard, which can better achieve the purpose of cleaning and improve the cleaning effect.
超声波引入溶液中时,会产生交替压力,用于空化阈的声波在液体中传播时能够产生空化气泡并且能显著提高气体从溶液中到气泡的传质速率。空化气泡由溶液中微小的气核产生,在声波的稀疏相内由于张应力(负压力)的作用会产生这些空泡。
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When the ultrasonic wave is introduced into the solution, it will produce alternating pressure. When the acoustic wave used for cavitation threshold propagates in the liquid, it can produce cavitation bubbles and significantly improve the mass transfer rate of gas from the solution to bubbles. Cavitation bubbles are produced by tiny gas nuclei in solution. These bubbles will be produced due to the action of tensile stress (negative pressure) in the sparse phase of sound wave.
如果张应力在空泡形成后继续存在,此时空化泡就会扩张到初始尺寸的许多倍。在这种情况下,空化泡保持球形结构,之后不断地增长、振动、崩溃。超声波作用时,溶液中气体成分可通过气-液界面“定向扩散”进入空化气泡,空化气泡进人生长阶段,当空化气泡在溶液表面崩溃时,气体会从气泡中逸出,这就造成了脱气作用。
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 continues to grow, vibrate and collapse. 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.
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