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Intersecting-spherical-shell pressure vessel with partition plates

A technology of pressure vessels and spherical shells, which is applied in the field of pressure vessels and can solve the problems of low structural efficiency of special-shaped vessels

Active Publication Date: 2021-06-25
光年探索(江苏)空间技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0003] Compared with the above two types of pressure vessel structures, other special-shaped vessel structures are less efficient and are only used in special scenarios

Method used

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  • Intersecting-spherical-shell pressure vessel with partition plates
  • Intersecting-spherical-shell pressure vessel with partition plates
  • Intersecting-spherical-shell pressure vessel with partition plates

Examples

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Embodiment 1

[0041] Embodiment 1: A kind of intersecting spherical shell pressure vessel with partition for road transportation, comprising:

[0042] 1) The design internal pressure of the pressure vessel is 4.1MPa, the material used is steel Q235, the yield stress is 235MPa, and the density is 7900kg / m 3 , it is required that the maximum stress under the design internal pressure is not higher than the yield stress of the material, the maximum diameter is 2.5m, and the volume is not less than 53m 3 ;

[0043] 2) The present embodiment is composed of 9 spherical shells with a diameter of 2.5 meters intersecting, and welding connections are adopted between the spherical shells and between the spherical shells and the partition, and the distance between the centers of the 9 spherical shells is 1.25m;

[0044] 3) According to the strength requirements of the pressure vessel, the thickness of the spherical shell is 10.9mm (this example is calculated according to the ideal thickness, without co...

Embodiment 2

[0050] Embodiment 2: attached Figure 4 It is an annular intersecting pressure vessel with partitions designed based on the present invention, which is suitable for setting pressure vessels in annular narrow height spaces (such as artificial satellites and space stations);

Embodiment 3

[0051] Embodiment 3: Attach Figure 5 It is a pressure vessel formed by intersecting spherical shells of different specifications based on the present invention, wherein 4 large-sized spherical shells intersect to form a nearly cylindrical shell shape, 10 small-diameter spherical shells intersect with the bottom large-diameter spherical shell, and 10 small-diameter spherical shells intersect The lower bottom of the shell is the same height as that of the large spherical shell at the bottom, and the small-diameter spherical shell and its partitions also serve as the supporting legs of the large spherical shell, which is convenient for the overall installation and fixing of the pressure vessel on the ground. The entire pressure vessel has a compact structure and high space utilization, and the structural efficiency equivalent to that of an ideal spherical shell pressure vessel can be obtained after reasonable design of the thickness of each spherical shell.

[0052] Embodiment 3...

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Abstract

The invention discloses an intersecting-spherical-shell pressure vessel with partition plates. The pressure vessel is formed by at least two intersecting spherical shells, one circular partition plate is arranged on each intersecting surface defined by intersecting lines, the spherical shells can be different in size and material, and the relative positions of the spherical shells can be adjusted. When the thickness of the partition plates is calculated according to a formula disclosed by the invention, the whole pressure vessel is an equal-stress structure under the action of uniform internal pressure, and the structural efficiency (the ratio of the theoretical volume of the pressure vessel to the theoretical structural weight under the same material, the same volume and the same internal pressure) of the pressure vessel is equivalent to that of an ideal-spherical-shell pressure vessel. Compared with a commonly used cylindrical-shell pressure vessel, the pressure vessel designed based on the concept has the advantages that the structural weight can be reduced by about 25% under the same strength requirement, and the pressure vessel can more flexibly adapt to the installation space of pressure vessels.

Description

technical field [0001] The invention relates to the field of pressure vessels, in particular to pressure vessels with high structural weight requirements and special installation space requirements. Background technique [0002] At present, there are mainly two types of pressure vessels: spherical shell and cylindrical shell. Among them, the ideal spherical shell has the highest structural efficiency. Under the theoretical internal pressure condition, the spherical shell is in a state of equal stress, and the material utilization rate is the highest. Scenes with relatively high requirements, such as large liquefied gas storage tanks, aerospace high-pressure gas cylinders\storage tanks, etc. The disadvantage of the spherical shell pressure vessel is that the manufacturing process is complicated, the space requirement is high, and the complete sphere must be accommodated, and the connection with other structures or the ground is also relatively difficult. A cylindrical shell ...

Claims

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Application Information

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IPC IPC(8): F16J12/00
CPCF16J12/00Y02E30/30
Inventor 王立朋
Owner 光年探索(江苏)空间技术有限公司
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