Problems with containers having folded flange ends
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What is the difference between elliptical flanged conical headed containers and elliptico-conical headed containers, and what are the advantages of conical headed containers? Operating pressure: negative 0.1 MPa
GB150 specifies whether folds are allowed; you can check that. The advantage of conical heads is that they facilitate the discharge of materials
In accordance with GB 150-1998, Steel Pressure Vessels – Amendment No. 2: The manufacturing and inspection of pressure vessel heads must meet the requirements of the following standard: JB/T 4746-2002 Steel Pressure Vessel Heads
“I’ve never heard of “elliptical folded conical head” or “elliptico-conical head”.
Reference can be made to the provisions in GB-150.
Tapered heads are generally designed as needed, and in terms of structure, stress distribution, and manufacturing, they do not have any advantages over elliptical heads. The welding joint between the large end of the conical head and the cylinder must withstand high bending stresses, so reinforcement is necessary.
Generally, elliptical end caps are recommended. The standards for elliptical end caps can be found in JB/T 4737-95. A fold thickness of 25 is generally preferred. Conical end caps are used when settlement control is required; they are not generally recommended
The selection of a conical head takes into account the properties of the medium and the characteristics of the process, as it facilitates smooth discharge of the material.