In what situations is a reinforcement ring needed for the welding of the takeover and the cylinder?
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The equipment is a pressure vessel; under what circumstances is it necessary to use a reinforcement ring when welding the nozzles to the cylinder body? Where can I find the relevant standards? Please, experts, give me some advice! I would be grateful for your advice! ! Thank you
Let’s take a look at GB/T 150.3 first.
Is reinforcement required for everything other than what is specified in GB150.3/6.1.3?
After looking at these two pictures, you should have an idea now.
This issue relates to the calculation of reinforcement for openings in pressure vessels; for details, refer to Chapter 6 of GB150.3-2011, which provides detailed information on various methods for calculating reinforcement for vessel openings, the approaches used for such reinforcement, and the relevant constraints. Whether reinforcement is required for the welding of the takeover and the cylinder is determined through calculations. Of course, there are also pressure vessels whose openings do not require reinforcement; see the screenshot for details.
First of all, thank you for your guidance. According to what you said, apart from the provisions in 6.1.3, both the takeover and the welding to the cylinder need to be calculated. As shown in the diagram, the diameter of this takeover is φ536*68; why isn’t any reinforcement added since this exceeds the requirements specified in 6.1.3? Is it a mistake in the drawings, or what?
As can be seen from the diagram, the designer has reinforced opening M. The designer employed overall forging reinforcement (that is, by increasing the wall thickness of the fittings)
It is necessary to calculate whether the remaining reinforcement area is sufficient