Improvement in Connecting the Structure of Spherical Crown Middle Head

Abstract In a pressure vessel, spherical crown head can be used as an end or middle head. Without common tangent to connect the surfaces of shell and cylindrical shell, connection between produces stresses deformation at edge connection, so in use need stiffened stiffening section needs arranged. With section, stainless steel equipment includes more welding beads looks less aesthetically attractive. If is whole, thickness increased which closely related radius curvature R i Therefore, design, optimization ratio internal diameter D must considered, obtain with minimum thickness. However, most cases, obtained may not economical, because non-standard, usually formed by stamping, requiring costly die. Furthermore, it permissible for all thicknesses entire instead pieced-together such design cause too great allowance strength, merely increasing costs manufacturing. The dual-cavity-tank irrigation company requires challenge confronted authors ensure attractive appearance, well economical reasonable cost. volume was slightly reduced, way connecting changed, optimal selected, section. Thus, actual difficulties encountered have been resolved.