Calculation of elliptical heads
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For an elliptical head with a central opening that is flanged, what formula should be used to calculate it?
This post was last edited by wanlirn on 2019-7-24 at 14:20. Normal flange cutting is sufficient; however, the bend in the middle should not be too long – 100 to 150 degrees, depending on the thickness, diameter, and manufacturing process. You can ask the flange manufacturer
Reference can be made to the calculation of the boiler shell
If it is a boiler drum, calculations should be carried out using the methods applicable to boiler flanged heads; for containers, the design calculations for boilers can serve as a reference. In pressure vessels, structural forms that are not specified in the standards should be avoided as much as possible, and instead conical shells and sections with varying diameters can be used in the design.
This process is generally used only on glass-lined containers.
GB21598 has calculation formulas
This can be calculated with professional head manufacturers.