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常见问题 当前位置:首页-行业咨询-常见问题-减少回转式风机气蚀现象的方法

减少回转式风机气蚀现象的方法

发布时间:2022-07-28 来源:http://www.sddyfd.com/

气蚀,又称穴蚀。是指流体在高速流动和压力变化条件下,与流体接触的金属表面上发生洞穴状腐蚀破坏的现象。回转式风机在气蚀状态下长时间工作,会造成噪声、振动变大等不良状况,因此应尽量避免在气蚀状态下工作,可通过以下方法:
Cavitation, also known as cavitation. It refers to the phenomenon of cavernous corrosion damage on the metal surface in contact with the fluid under the conditions of high-speed flow and pressure change. If the rotary fan works for a long time in the cavitation state, it will cause bad conditions such as noise and vibration. Therefore, it should be avoided to work in the cavitation state as far as possible. The following methods can be used:
1、降低工作液的温度
1. Reduce the temperature of working fluid
在回转式风机工作点为固定值的前提下,降低工作液的温度可以达到防止气蚀的效果。采用具有更低的饱和蒸汽压的液体作为工作液。
On the premise that the working point of the rotary fan is a fixed value, reducing the temperature of the working fluid can achieve the effect of preventing cavitation. Use the liquid with lower saturated vapor pressure as the working fluid.
2、运行在区域,提高选型的准确性
2. Operate in the area to improve the accuracy of model selection
这要求在选型阶段,选择吸入压力及工作液温度时尽量避开容易发生气蚀的压力范围。
This requires that in the selection stage, the suction pressure and working fluid temperature should be selected to avoid the pressure range prone to cavitation.
3、安装汽蚀保护管路或单向阀
3. Install cavitation protection pipeline or check valve
气蚀过程中产生的气泡在压缩过程中破裂时,从外部引入压力较高的不凝气体能够及时补充因气泡破裂而出现的空间,这样可以大大减轻气蚀对泵的损害及降低气蚀引起的噪声和振动。泵的叶轮、圆盘采用防气蚀能力较强的材质。
When the bubbles produced in the process of cavitation burst in the compression process, the introduction of non condensable gas with high pressure from the outside can timely supplement the space caused by bubble rupture, which can greatly reduce the damage of cavitation to the pump and reduce the noise and vibration caused by cavitation. The impeller and disc of the pump are made of materials with strong anti cavitation ability.
4、配大气喷射器
4. Equipped with air ejector
如果回转式风机的吸气口配有大气喷射器,则不易发生气蚀现象。
If the suction port of the rotary fan is equipped with an atmospheric ejector, cavitation is not easy to occur.
以上就是为大家介绍的有山东回转风机的详细的介绍,希望对您有所帮助.如果您有什么疑问的话,欢迎联系我们.我们将以专业的态度,为您提供服务http://www.sddyfd.com/
The above is a detailed introduction of Shandong rotary fan. I hope it can help you. If you have any questions, please contact us. We will provide services for you with a professional attitude http://www.sddyfd.com/