How to reduce excessive vibration in the piping of screw compressors
Thread Content
Due to excessive vibration in the piping of screw compressors, cracks have appeared in the welds of the connection pipes of the compressor unit as well as in the outlet pipes. How can vibration in the piping be reduced?
First, it is necessary to identify the source of vibration. If the vibration originates from the unit itself, then it is important to check whether there are any issues with the rigidity of the unit’s foundation, whether there are any manufacturing defects in the unit, what vibration damping measures have been implemented, and whether vibration filtering measures have been applied to the connecting pipelines
For this issue, it is necessary to distinguish whether it is present from birth or develops later in life. If it is present from birth, the cause must be sought in the design and installation. If it occurs the day after, it is necessary to check whether the fastening bolts of various support brackets, equipment, and pipe fittings are loose, and whether the gaskets have come loose. As long as the source of vibration is identified, the problem can be resolved by gradually returning things to their original state; this is for reference only.
Are expansion joints installed on the inlet and outlet pipes?
Is it motor-driven? Normally, the vibration of screw compressors is very low; it’s necessary to rule out various possibilities one by one. Too little information has been provided – it’s important to check whether the pipeline design is reasonable, especially regarding the expansion joints, supports, and elbows in the outlet pipelines