| 摘要 |
920,189. Storing liquefied gases. BRITISH OXYGEN CO. Ltd. Nov. 1, 1961 [Nov. 2, 1960], No. 37635/60. Class 8(2). A storage vessel for liquefied gases, comprises an inner shell enclosed by heat insulation, at least one element which crosses the insulation and which provides a heat inleak path connected with the shell at a regional area thereof in the proximity of its base, and an upstanding convection chimney within the shell and extending from the regional area. As described the vesseel comprises inner and outer shells 10, 11 with a space 12 therebetween which is evacuated; the space 12 may contain heat insulating material, e.g. in powder form. The inner shell 10 is supported from the outer shell 12 by members 13 connected to the base 14 of the shell 10, and by bracing members 15 disposed at the upper end of the vessel. A liquid gas draw-off conduit 16 and a vaporized gas draw-off conduit 18 are provided. A convection chimney 19 having holes 20 therein is upstanding from the base 14 of the shell 10. Alternatively, the inner shell may be supported by a tripod structure with three convection chimneys disposed above the points of support. |
