How to eliminate vibrations in heat exchangers
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I have a question: when using HTRI to analyze heat exchangers, vibration warnings always appear. These vibrations can be caused by various factors such as excessive speeds, but no effective solution has been found to eliminate them. I work in the field of process engineering, and I would like to know whether this issue should be addressed through modifications to the equipment itself, or whether it needs to be resolved during the stage of optimizing the process conditions ? ? ? If you have any many methods for reducing vibration, I would appreciate it if you could share your suggestions
Of course, it’s the people in charge of equipment who handle it. Not to mention heat exchangers, even a chimney can experience wind-induced vibration.:lol All of these are issues that equipment is designed to handle. Just meet the process validation requirements, right? Even if you were to land on the moon, as long as all the requirements for maintaining life conditions are met, the actual implementation involves dealing with equipment. :lol
To eliminate vibration, a simple solution is to reduce the flow rate; however, this will require you to choose a larger device.
Agree with the second floor – let the equipment specialists handle it! But the process allows one to understand its principles. It’s better to be a “jack of all trades” in terms of craftsmanship: loveliness:
Examine the following aspects: 1. The flow rate of the feed. 2. Is there a phase transition? 3. It is also necessary to consider whether the stress distribution in the pipeline is reasonable. At present, state-owned refineries generally reinforce pipelines, heat exchangers, and their foundations under the condition that no phase change occurs; there is little opportunity to replace the equipment.
As a supplementary point: the presence of non-condensable gases in the heat exchanger can also cause severe vibration, which must be removed
Agree with the view from the fifth floor: 1. The flow rate of the feed material. Reducing the flow rate can help, as can using shock absorbers and increasing the pipe diameter. 2. Is there a phase change? Avoid phase transitions; if they occur, they must be eliminated. Purge or vent the system (depending on the medium phase). 3. It is also necessary to consider whether the stress distribution in the pipelines is reasonable. For example, there are too many bends, or they are even too close together. 4. Whether the support of the foundation brackets complies with the standards – large spans combined with insufficient support can also lead to vibrations. 5. Is the heat exchanger load large enough? It is advisable to have a certain margin.
Agree with the opinion from floor 7. This could be caused by the steam hammer effect; to reduce vibration, a vibration-damping metal hose can be installed at the outlet.