Three-dimensional shell structure, pressure vessel having same, and manufacturing method therefor

Abstract

The present invention relates to a pressure vessel for containing and storing a fluid, and a three-dimensional shell structure used therefor. The three-dimensional shell structure is a three-dimensional shell structure for a pressure vessel, the interior of which is separated / delimited by an interface into two sub-volumes including a first sub-volume and a second sub-volume that are twisted with regard to each other, and is characterized in that at least one of the two sub-volumes is provided as a storage volume for containing a fluid, and a part of the sub-volume provided as the storage volume, which is exposed to the outside, is sealed by a shield plate, except for a part thereof used to introduce / discharge the fluid. The pressure vessel according to the present invention has a shell structure configured as the body of the pressure vessel, the interior of the shell structure being separated / delimited by an interface into two sub-volumes that are twisted with regard to each other, each sub-volume having a continuous shape. The two sub-volumes are utilized independently as volumes for storing a high-pressure fluid or volumes for containing or moving a heat exchange medium. Accordingly, the pressure vessel has excellent pressure-resistant characteristics while having a small wall thickness and a large storage volume per weight, and also has excellent specific surface area, fluidtransmittance, and heat transfer characteristics.

Description

technical field [0001] The present invention relates to a pressure vessel (Pressure Vessel) for storing and keeping fluids and a three-dimensional shell structure used in the pressure vessel. Background technique [0002] Generally, a pressure vessel (Pressure Vessel) is used to store and preserve a high-pressure fluid inside. For example, for fluids such as liquid oxygen and nitrogen, an industrial gas tank is a pressure vessel that withstands a pressure of 120atm; Produces the steam that turns the turbines used to generate electricity. Conventional pressure vessels are usually made into cylinders or spheres to withstand high pressure while having low weight. figure 1 The relationship between the cylindrical (cylinder) or spherical (sphere) shell (shell) shape of a conventional general pressure vessel and the maximum principal stress generated on the shell wall when the internal pressure P in the pressure vessel acts is shown. [0003] However, the conventional cylindric...

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Problems solved by technology

Therefore, the thin film existing at the boundary of the two subspaces is highly likely to be used as a heat and mass transfer interface between the two subspaces

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