Large opening reinforcement calculation problem
Thread Content
There is a water storage tank, the design pressure is 1.6MPa, the design temperature is normal temperature, and the medium is clean water. When calculating the reinforcement of large openings, the calculation can be passed using the HG20582-2011 pressure area method, and the calculation can be passed using SW6-2011 The 3.0 version of the analysis method fails to pass the calculation. The cost of analytical calculation equipment is very high. I want to use the HG20582-2011 pressure area method for calculation. After all, the HG20582-2011 pressure area method is also universal. However, if the analysis method fails, I have no idea. I worry about safety issues when designing pressure vessels. Are my worries unnecessary?
I'm also waiting, I only know how to use Sw6, please give me some answers.
First of all, your calculation passed the pressure area method. Is your calculation correct? It cannot be calculated using the SW6-2011 version 3.0 analysis method, and no one has seen your results. It is best to send your design conditions and results for a look. Please upload the diameter, thickness, design pressure, design temperature, material and other parameters in detail.
The diameter is 2000, the cylinder thickness is 14, the design pressure is 1.6MPa, the design temperature is normal temperature, the medium is clean water, the outer diameter of the large opening pipe is 1040, the thickness of the large opening pipe is 20, the outer diameter of the reinforcing ring is 1425, and the thickness of the reinforcing ring is 20. Can any colleague help me calculate whether it is safe to reinforce the large opening?
Material Q345R, corrosion allowance 2
Barrel 20mm, nozzle 30mm
HG20582-2011 pressure area method calculation does not need to be so thick
It is recommended that you still follow the calculation results of the analytical method, which is recognized by GB150. The pressure area method should not be considered a legal basis for design
The GB150 opening reinforcement analysis method cannot be used to reinforce the ring reinforcement structure, it must be overall reinforcement!
In addition, the GB150 analysis method is not conservative;* * standards must be met