Stress problems in pipes connected to equipment
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The pipes connected to the equipment will produce stress on the equipment. I would like to ask why torque rather than force is used in stress calculations? It seems that the direction of the torque is not the same? It's very confusing, I hope someone can give me some advice
As a result of the pipe stress calculation, there are three forces and three moments on the vessel nozzle.
It should be said: There is also a force and a moment. It depends on the magnitude of the force. You can ignore the moment. When providing conditions for equipment and civil engineering, be sure to specify the point of action of the force and let them consider the moment. The direction of the force is very important. X, Y, Z depends on which direction you choose for modeling. What they want is not just gravity, but the horizontal thrust sometimes also has a great impact on equipment and civil engineering professionals. In order to eliminate the stress problem in the pipelines connected to the equipment, the pipeline direction must be changed or expansion joints must be added. If the force and moment are still large, please change the original bracket position and calculate again.
If you are doing pipeline stress calculations, you must not be vague. Learn online * On the one hand, we must learn from the seniors in the unit * . You can't just work hard on your own. Sometimes something you do for yourself will cause big problems. Someone must check it for you.
I would like to ask why there are forces in three directions? Could you please explain it a little bit, I'd be very grateful.
The three methods are in the three directions of XYZ
GB/T 20801.3-2020 Pressure piping specification industrial piping Part 3: Design and calculations, Appendix I Allowable stresses at static equipment nozzles