Stepless control system for compressor air volume
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Our company has installed a stepless volume control system for the compressor. After its installation, vibration occurred in the compressor’s intake pipeline; however, the most noticeable vibration was seen in another section of the pipeline, namely at the starting point of the entire compressor supply pipeline, with the vibration propagating along the length of the pipeline. We previously strengthened the pipeline, which helped reduce the vibration, but it caused increased vibration in the frames and platforms connected to the pipeline. We are now planning to further strengthen the pipeline. Please share your opinions – are there any good solutions?
This post was last edited by looking83 on 2016-12-7 00:24. The stepless adjustment system for the compressor’s air volume is actually achieved by controlling and adjusting the piston intake valve. Therefore, during the adjustment process, the compression volume of the piston compressor actually changes as the gas volume is adjusted, which in turn causes the frequency of vibrations generated during the piston compression process to change. When the vibration frequency of the compressor changes, resonance occurs if this new frequency is close to or identical to the vibration frequencies of the piping system and other devices connected to it. The amplitudes of the vibrations combine during resonance, which leads to an increase in pipe vibrations; in severe cases, this can result in serious damage. Therefore, eliminating this resonance by strengthening the pipes is a temporary solution that does not address the root cause, and it may even lead to greater damage. The solution still lies in trying to change the vibration frequency of the compressor. If this system is to be continued to be used, it’s basically impossible to address the issue through control methods. The problem can be solved by altering the structure of the piping network and adding devices that help change the system’s vibration frequency; for example, buffer tanks can be used. There are also other devices that can be installed on the pipes, which work on a principle similar to that of buffer tanks but are much smaller in size. These devices calculate the vibration frequency and then generate something that changes it, and when installed in specific locations within the piping network, they can disrupt system resonance. I forget exactly what they’re called; it seems to be something like vibration dampeners, and they are very effective.
Send it to the equipment and process pipeline areas to take a look; change the title to \"Pipeline vibration: Are there any solutions?\"