Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Bases and criteria for deciding whether or not to use an anchor block in a pipeline
(OP)
Develop the analysis of flexibility of a Pipeline however I am not clear with which criterion to use or not to use an anchor block, is there in any norm a backup to use or not anchor blocks ??
I appreciate your help
I appreciate your help





RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
With those set of guidelines, you can develop a few general set of rules for anchoring pipe.
1.) Don't do it unless you need to.
2.) You only need to do introduce restraints when stresses from already holding the pipe from moving are too high for the pipe itself, or for the attached equipment.
Where should you use anchors? You should use anchors only in places that will force the pipe to move towards other reqions of the pipe configuration that are flexible, areas where such movement will not be accompanied by increased stress, preferably at any point in the pipeline.
To do your job as a "pipe flexibility engineer" correctly, you should not be asking questions about how to add anchors and thereby seek to increase stresses. You should be reducing stresses. Therefore look to add FLEXIBILITY, not anchors. That is the question that you should be asking, "How do I increase flexibility the of this piping system?"
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RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
The norm - don't use them.
Reality is that unfortunately piping engineers like working away from fixed points and this horrible flexible unknown thing called a pipeline or flowline disrupts their nice neat way of thinking, so sometimes despite all arguments to the contrary, you end up with one.
It doesn't help that when modeling the buried sections, people often leave the connection end as a "free end" and hence report large amounts of displacements which the piping designers throw their arms up in horror at, but are normally quite unrealistic once you add on the weight and strength of the attached piping. The only way to properly design any system is to do it as a single pipe / system which just happens to be buried for some sections.
You don't say pipe size, pressure or range of temperature, which is usually the key issue, but design in flexibility, especially at the connection between pipeline / flowline and piping and the desire to pour large quantities of concrete into the ground tend to go away....
The only one you need to really worry about is where you have buried tees, especially small bore one close to the end where a pipe can move. The you might need to do something which avoids the shear and bending on the connection.
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RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
You say "PipeLine is API 5L x42 Long:2.48549 Mile Crude Service, Aerial and buried."
By "Aerial" do you mean in the air? If so then I do not think you can place Anchors on the Aerial sections unless the supports are "sky hooks".
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
The question is asked because the client requires me to maintain a standard because I do not need an anchor block, the pipe is designed with adequate flexibility, and having no rotating equipment connected to it then concludes that the displacement Of the pipe due to thermal expansion was not crucial to absorb the same with an anchor block the displacement is 10 mm, however the client does not accept the justification, due to this see if there are any paragraphs in the current legislation Which speaks of minimum limits or criteria for not using anchor blocks, the client does not have more knowledge of the subject however somebody I speak of blocks of anchor and he is blocked with the subject, the design in Caesar II realizes it because it is a Condition in the scope of the Project, however the calculations were made manually based on Criteria according to Peng.
Note: Sorry for my writing I'm not very good writing in English
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
"Aerila" Meaning of pipe supports
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Technology is stealing American jobs. Stop H1-Bs for robots.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Otherwise agree, each design is different but flexibility is the key.
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Technology is stealing American jobs. Stop H1-Bs for robots.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Technology is stealing American jobs. Stop visas for robots.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Do agree that some lines need it due to their type of construction, but I think it's pretty clear to me it's a welded line we're talking about here...
Remember - More details = better answers
Also: If you get a response it's polite to respond to it.
RE: Bases and criteria for deciding whether or not to use an anchor block in a pipeline
Technology is stealing American jobs. Stop visas for robots.