Vibration in the secondary inlet pipeline of the new hydrogen turbine
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Abnormal vibration in the secondary inlet pipeline of the new hydrogen compressor; load is normal, pressure is normal, and both suction and exhaust temperatures are also normal. Seeking expert advice!
Check whether the pipe supports, hangers, and pipe clamps are securely fastened； Check the pipeline for any debris. .
First, check whether the fastening parts of the pipeline are in good condition and functional
What happened to us before was that the vibration levels in the secondary outlet pipeline were too high, and no measures taken to reinforce it seemed to work. Later, someone suggested that we install a flow-limiting orifice plate at the flange at the outlet of the buffer tank, and this solution proved effective right away – the vibration issues were immediately resolved. This is a secondary export; the approach from behind is a bit different from yours. I’m not sure if it can serve as a reference for you?
It seems like the secondary inlet pipeline is blocked, but it can still operate at full capacity
If the on-site inspection shows no issues, it can be compared with the design drawings. The compressor manufacturer will conduct a pulsation analysis based on the piping layout; if construction is carried out in accordance with the design and there are no problems during operation, it is still necessary to consider whether there have been any changes in the operating conditions. During the initial design phase, if the pulsation analysis did not pass, the option of installing orifice plates was also considered.
It could be resonance; adding orifices also changes the vibration frequency. Considering adding additional pipe clamps for fixation should have an effect.
Our vibrations have increased significantly, which reduces the effectiveness of the orifice plate; the support function provided by the clamping mechanism is also limited. Now, pipe dampers have been added as well