Asking for advice on vacuum pump selection (completed)
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Hope to choose: Hydraulic vacuum system. , vacuum requirements: -0.09 pump out: 180~200m3/h. When selecting the model, it was always 160. If it exceeds 230~280, it becomes 230~280. Please tell me how to choose. . How to break the vacuum if you choose the big one. . If you use a pipe and a valve to break it manually. . It was too loud to get through. . That big brother has a better way. This post was finally edited by beileim1 on 2009-3-11 15:47 ]
You can set up a buffer tank between the equipment and the vacuum pump, and install a regulating valve in the pipeline between the buffer tank and the equipment to control the vacuum. Besides, the vacuum pump must have a margin. In actual production, many reasons prevent the vacuum from being achieved and the output cannot be increased.
There are many types of water ring vacuum pumps, 2BV 2BE SK SZ and so on. There are many that meet your requirements. In addition, you can control the speed of vacuum breaking to reduce the noise caused by vacuum breaking gas throttling.
Wouldn't it be enough to use a negative pressure safety valve to break the vacuum?
What this buddy said is good. I do the same thing here, but the regulating valve is relatively expensive. Generally, it is better to leave a 10%-20% margin when selecting a vacuum pump. Because the system is not tightly sealed, the margin will take effect.
The noise of vacuum breaking can slow down the speed of vacuum breaking, and it is best to install a silencer. The main purpose is to ensure the evacuation rate required by the process to achieve the required vacuum degree.