Large-rigidity anti-shaking structure provided with annular deformation compensation and suitable for low-temperature storage tank

A technology of deformation compensation and low-temperature storage tank, which is applied in the field of structure, can solve problems such as uncoordinated deformation distribution, failure of solder joints and connection structures, and inability to suppress liquid sloshing, so as to eliminate pulling deformation, reduce desoldering and solder joint bending The risk of scarring, the effect of reducing the energy of liquid sloshing

Active Publication Date: 2019-04-16
BEIJING INST OF ASTRONAUTICAL SYST ENG +1
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  • Abstract
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  • Application Information

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Problems solved by technology

At present, it is mostly used in the interior of the tank structure with a diameter of 3.35 meters. The connection method is welded to the tank wall by the brace plate. The above structure has achieved remarkable results in anti-shake measures. During filling, the thermal environment in the tank drops by more than 200°C, and the tank structure shrinks and deforms. The axial deformation of the tank can reach 90mm, and the radial unilateral shrinkage can reach 15mm. After charging, due to the different rigidity of the tank, the deformation distribution Inhomogeneity Deformation incongruity will occur at the connection between the anti-sway structure and the storage tank and the overlapping part of the anti-sway structure, and there will be instability and wrinkles on the anti-sway board surface, or failure of solder joints and connection structures
If the anti-sway structure fails, not only the liquid slosh cannot be suppressed, but the fallen solder joints, bolts, etc. will form redundant objects in the tank, resulting in flight failure. Therefore, we propose a method suitable for low-temperature storage tanks with circumferential deformation compensation. The high-rigidity anti-sway structure was put into use to solve the above problems

Method used

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  • Large-rigidity anti-shaking structure provided with annular deformation compensation and suitable for low-temperature storage tank
  • Large-rigidity anti-shaking structure provided with annular deformation compensation and suitable for low-temperature storage tank
  • Large-rigidity anti-shaking structure provided with annular deformation compensation and suitable for low-temperature storage tank

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Embodiment Construction

[0021] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0022] Please refer to Figure 1-Figure 5 As shown, the present invention provides a technical solution: a large-rigidity anti-sway structure suitable for the compensation of the circumferential deformation of the low-temperature storage tank, comprising a tube section wall plate 1 on which a welding angle is fixedly connected The gusset 3 is fixedly connected to the welding angle piece 2, and an anti-shake board 4 is fixedly connected t...

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Abstract

The invention discloses a large-rigidity anti-shaking structure provided with annular deformation compensation and suitable for a low-temperature storage tank, and belongs to the technical field of structures. The large-rigidity anti-shaking structure provided with the annular deformation compensation and suitable for the low-temperature storage tank comprises a barrel segment wallboard, a weldingangle piece is fixedly connected to the barrel segment wallboard, an angle brace is fixedly connected to the welding angle piece, and an anti-shaking board is fixedly connected to the angle brace. The large-rigidity anti-shaking structure provided with the annular deformation compensation and suitable for the low-temperature storage tank is novel in design, reasonable in structure, block design is carried out on the whole ring anti-shaking board, pulling deformation can be removed, and risks of welding loosing and welding point crease are reduced; meanwhile, an optimized groove is formed in the side, close to a box body shell, of the anti-shaking board in the direction of the radius, after the storage tank is pressurized and expanded, a fine groove in the anti-shaking board can open or close following the box body, annular deformation of the anti-shaking board can be compensated, deformation stress is removed, and preinstallation of ear piece and the angle brace is adopted; and the installation mode of the anti-shaking board is carried out, the deformation compatibility problem in the installation process does not exist, so that the assembly process and difficulty are greatly simplified, and the design of the large-rigidity anti-shaking structure can more effectively reduce liquid shaking energy.

Description

Technical field [0001] The present invention relates to the technical field of structures, in particular to a large rigidity anti-sway structure suitable for compensation of circumferential deformation of a low-temperature storage tank belt. Background technique [0002] The anti-sloshing structure is installed inside the liquid storage tank. It is a mechanical device used to inhibit the sloshing movement of the liquid and change the sloshing frequency to prevent the coupling of the sloshing frequency and the control frequency. The new generation of launch vehicle adopts cryogenic propellant. The diameter of the storage tank spans from 3.5m to 5m. Compared with the traditional anti-sway plate structure, it also undergoes greater internal pressure deformation and low-temperature deformation during propellant filling in addition to sloshing loads. It is a test for the strength of the anti-shake board panel and the solder joint node. At present, there are mainly two types of anti-s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D90/52
CPCB65D90/52
Inventor 张健郭彦明胡正根刘德博潘桢田建东王非凡吴会强鄢东洋
Owner BEIJING INST OF ASTRONAUTICAL SYST ENG
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