PRESSURE VESSEL CONCEPTS: EXPLORATORY EVALUATION OF STACKED-RING AND SEGMENTED-WALL DESIGNS WITH TIE-ROD END-CLOSURE RESTRAINTS.

摘要

An exploratory experimental study was conducted to evaluate the stacked-ring and segmented-wall pressure vessel concepts. The evaluation consisted of testing to destruction stacked-ring and segmented-wall pressure vessel models with tie-rod end-closure restraints and evaluating a series of seal designs utilized in the sealing of the joints between the pressure vessel end closures and the cylindrical pressure vessel body. The test results indicate that the stacked-ring pressure vessel design is approximately 50% heavier than a multilayered pressure vessel of same internal diameter length,material,and pressure capability. The segmented-wall pressure vessel design is approximately 8to 9times heavier than a multilayered pressure vessel of same diameter,length,material,and pressure capability. The free-floating,self-energizing radial seal system provided the most reliable and extrusion-proof sealing for vessels with considerable radial dilation and axial end-closure movement. (Author)