Pipe stress analysis for spring support selection

In summary, it is possible to do an analysis for the main piping loop and additional small piping loops. However, it is recommended to do the analysis for the main piping loop as well as the additional small piping loops.
  • #1
rakeshri28
1
0
Dear all,

Welcome to this post.

I have a question. I have a main piping loop around a cylindrical vessel for which stress analsysis is don't and supported properly. Additonal six loops are to be installed in that main loop. This additional weight is coming on the main piping loop. The additional small size pipe loops are connected to the vessel nozzles. We need to support this additional load of pipe and valves. mY QUESTION is: Is it required to do the analysis for the main as welll as sub loop pipes? Or only additional piping loops can be modeled and analysed? Kindly suggest.
 
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  • #2
If someone did an analysis for a system and you add stuff to that original system, is that original analysis still valid? The answer is maybe. It depends on the original system, the original analysis, the modifications, and the experience of the person making the justification. If you don't know the answer to that, you need to find an expert that can provide that consulting service.

FYI, throwing around relative terms like "small" is not recommended for piping systems.
 
  • #3
Dear Sir,
I agree with Jehake.
Would be interesting to have more details and to have a look at the routing. As rule of thumb you can consider that branches can modify stress results if their diameter are at least 40% of the main pipe. There are many schools about this value. Which code are you using (Asme, EN,...)?. By the way one of the weakest point of the small branch could be the branch connection with the main pipe. So you could insert in your model a small part of the main pipe (i.e. till the first stop, but there are other good approches).
If you need more help fell free to contact me at tech@vannella.com.
Best regards.

Corrado Vannella
www.vannella.com
 

Related to Pipe stress analysis for spring support selection

1. What is pipe stress analysis and why is it important?

Pipe stress analysis is a method used to determine the stress and strain on a piping system in order to ensure its structural integrity and safety. It takes into account factors such as pressure, temperature, and gravity to determine the maximum stress that the pipe can withstand. This analysis is important because it helps prevent failures, leaks, and costly repairs.

2. What is a spring support and why is it used in pipe stress analysis?

A spring support is a mechanical device that is used to support and restrain a piping system. It is designed to counteract the effects of thermal expansion, vibration, and other external forces that can cause stress on the pipe. In pipe stress analysis, spring supports are used to reduce the amount of stress and strain on the pipe and ensure its proper functioning.

3. How do you select the appropriate spring support for a piping system?

The selection of a spring support for a piping system involves considering factors such as the type of pipe, the operating conditions, and the expected movement and loads on the pipe. The support must be able to accommodate the expected displacement and provide sufficient load-bearing capacity to prevent excessive stress on the pipe. Detailed calculations and analysis are typically performed to determine the most suitable spring support for a specific piping system.

4. What are some common types of spring supports used in pipe stress analysis?

Some common types of spring supports used in pipe stress analysis include variable spring hangers, constant spring hangers, and pipe clamps. Variable spring hangers are used to support pipes with large vertical movements, while constant spring hangers are used for smaller vertical movements. Pipe clamps are used to restrain pipes from lateral or axial movement.

5. How does pipe stress analysis for spring support selection contribute to the overall design process?

Pipe stress analysis for spring support selection is an essential part of the overall design process for a piping system. It ensures that the system is able to withstand the expected stresses and loads, preventing failures and ensuring the safety and functionality of the system. By selecting the appropriate spring support, the design process can also be optimized to reduce costs and improve efficiency.

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