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How should the position of the fixing brackets in the pipeline be chosen, and are there any requirements? How is the position of the sliding parts determined?
This can’t be explained in just a couple of sentences; you’ll get an idea by looking at the design drawings created by those who came before. Basically, one needs to consider the stability of the pipeline system, the design of compensation methods, on-site conditions, and so on – there are too many factors to take into account
Now, the supports and hangers for pressure pipelines are designed using software, such as the domestically developed Youyi and similar tools.
I thought there must be some method, but it turns out that experience accumulation is what’s needed.
Well, I’m aware of this; it’s just that calculating it falls under other specialties, which makes it rather complicated.
First of all, this topic is really vast and constitutes a profound field of study. I can only explain it briefly to you: Fixed supports are mainly used in places where linear and angular displacement of the pipes is not allowed. The installation of fixed supports should meet the following requirements: 1. For complex pipelines, fixed supports can be used to divide them into several sections with simpler shapes, such as L-shaped or U-shaped sections ; 2. When using a π-shaped compensation element, it should be placed between the two fixed points; note that the π-bend is not necessarily located right at a fixed point ; 3. Place the fixing points as close as possible to the area where movement of the pipeline branch needs to be restricted ; Some of the branch pipes leading off from the main pipeline in the ductwork do need to be installed ; 4. Used in areas subject to pipeline vibration and pulses ; 5. Pipes entering and leaving the plant area should be equipped with fixed supports at the boundary of the plant area ; Anyway, it still falls under the category of stress analysis; having a basic understanding is sufficient, while the actual settings and calculations should be handled by professionals. It’s very difficult to design brackets in a way that is truly optimal. Please point out any mistakes
In short, do not misuse the fixing frames, as this can lead to excessive local stress; pay more attention to the designs of those who are more experienced, as well as to stress calculations
Thanks, I’m a beginner and I still don’t understand some things completely.
If there is anything you don’t understand, feel free to ask; I’ll tell you everything I know. But to be honest, when dealing with demanding operating conditions (high temperature, high pressure, toxicity, etc.), you can’t just design these brackets casually. It’s not just a matter of providing fixation or guidance or limiting movement; otherwise, there would be no need for a specialized field such as stress analysis. It is recommended to take a look at the materials on stress analysis. There’s no need for more; just reading Tang Yongjin’s book \"Stress Analysis of Pressure Pipes\" is sufficient. Besides, I think it should be moved to the stress subsection; P