UN PROCEDIMIENTO DE FABRICACION DE DEPOSITOS O ANALOGOS.

摘要

1,194,865. Compressed gas storage containers. CHANTIERS NAVALS DE LA CIOTAT and E. G. D. RODRIGUES. 11 Aug., 1967 [26 Aug., 1966], No. 36950/67. Heading F4P. [Also in Division B3] A pressure vessel, e.g. a compressed gas storage container comprises a plurality of metal shells of circular horizontal cross-section, e.g. spheres or domed-ended vertical cylinders located in spaced relation one within the other; each shell comprising two identical halves welded together internally and externally, and the space between adjacent shells being filled with load transmitting heat insulating material, e.g. polyurethane foam. Construction of a multiwalled spherical container is effected by cutting a semicircular recess O 1 , O1 1 , Fig. 3, in the machined rim of each of two hemispherical halves C1, C1 1 of a first shell, abutting the two half-shells with their rims in a horizontal plane and with their recesses O 1 , O1 1 in register to form a manhole, welding the two half shells C1, C1 1 together from both inside and outside the shell, at S 1 , S1 1 , surrounding the welded shell by two similar but larger diameter half-shells C 2 , C1 2 , Fig. 5, spaced from said first shell and with abutting rims provided with recesses O2, O1 2 in register with the manhole of the first shell, rotating said first shell one revolution about a vertical axis X, X1, Fig. 6, whilst welding the line of abutment of the second shell from a position inside the first shell adjacent the manhole therein, welding the outside of the second shell, and bolting the two shells together with their manholes in register and finally welding coverplates. The composite container so formed has an effective wall thickness of 200 mm. which is greater than can conveniently be welded.