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Vibration problems in air compressor pipelines

2021-07-14View Original

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The unit has newly installed 9 oil-free and water-lubricated air compressors with a capacity of 38 cubic feet each. During the installation process, the senior management believed that there were issues with the piping design provided by Party B; accordingly, the on-site workers carried out the installation following their oral instructions. Now, the equipment is experiencing abnormal vibration in the pipes, and one pipe burst due to this vibration problem. The original design was prepared by a design institute commissioned by Party B; each air compressor is connected in parallel to a collector to absorb shocks and reduce pulse forces, before flowing into four air storage tanks, with minimal pipe diameter changes or elbows. Following the leader’s instructions for installation, every two air compressors were connected in parallel to a single pipe that led directly to the air storage tank. The exhaust outlet of the air compressors used a DN100 pipe, which widened to DN150 before reaching the air storage tank, where it narrowed back to DN100. Elbows were installed, and the four pipes leading to the air storage tank were connected together. . . Now, there are more variable diameters and elbows. I would like to ask the teachers and experts here: are there any methods that can be used to reinforce the structure and reduce vibrations?
Reply #22021-07-14
For now, construction will be carried out according to the design provided by the design institute, and the results will be evaluated after it is put into operation. If that doesn’t work, consult a design firm for suggestions.
Reply #32021-07-14
This problem can be solved by connecting the air compressor pipes at an angle
Reply #42021-07-14
First, identify the cause of the pipeline vibration; it is likely that the vibration from the air compressor is causing resonance in the pipelines. My suggestion is to install vibration-damping measures at the base of the air compressor, as well as at the supports of the air storage tank. Additionally, soft contacts should be installed at the locations where the pipelines are supported. I hope this helps you
Reply #52021-07-14
Firstly, the pipe supports at the site are too thin and weak; they are installed haphazardly everywhere, and the pipes are arranged in a random manner. It is difficult to eliminate vibrations without addressing these issues at their root. A configuration like this is also utterly incredible; why not use one or two centrifugal air compressors? It performs better in terms of energy consumption, spare parts, and service life. Since Party A has raised objections, why was it implemented orally? Without the involvement of any design institute, the unit’s own technical staff? ? ? For reference.
Reply #62021-07-14
It seems he has completed the construction, as the supervisor verbally changed the design provided by the design institute
Reply #72021-07-14
For large and small ends, those with a flat bottom and a concentric design are easier to accumulate fluid in
Reply #82021-07-19
Brackets and pipe clamps should be used to secure the position of each elbow and tee; at least I don’t see any of these in your drawings
Reply #92021-07-20
What kind of pipes are there on site? Do they look wrinkled? Come to learn*
Reply #102021-07-20
It seems the people upstairs make sense – fluid accumulation tends to occur in areas with larger or smaller diameters. Additionally, the joints where bends and tees are present should be secured. For now, we can only make some adjustments and see how it works

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