热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究

帅争峰; 葛殿辉; 雷咸道; 张俊峰; 沈亚军; 王跃社

doi:doi:10.19912/j.0254-0096.tynxb.2024-1870

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热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究

更新时间：2026-03-06

- 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究
- 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究
- 太阳能学报 2026年47卷第2期页码：205-212
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- DOI：doi:10.19912/j.0254-0096.tynxb.2024-1870
  中图分类号： TK513
- 网络首发：2026-03-05，
  
  纸质出版：2026-03-05
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帅争峰, 葛殿辉, 雷咸道, 等. 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究[J]. 太阳能学报, 2026,47(2):205-212.

帅争峰, 葛殿辉, 雷咸道, et al. 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究[J]. 2026, 47(2): 205-212.
帅争峰, 葛殿辉, 雷咸道, 等. 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究[J]. 太阳能学报, 2026,47(2):205-212. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1870.

帅争峰, 葛殿辉, 雷咸道, et al. 热力耦合变液位作用下支撑刚度对熔盐储罐力学性能影响研究[J]. 2026, 47(2): 205-212. DOI： doi:10.19912/j.0254-0096.tynxb.2024-1870.

摘要

通过建立熔盐储罐的热模型与应力模型

考虑热力耦合变液作用下

罐壁与底板支撑刚度对储罐力学性能的影响。结果表明

不同液位储罐的温度分布大体一致

底板外伸焊缝位置与拱顶连接位置存在最大温差

约为4 ℃。静水压力主要影响罐体的沉降

满载工况下最大沉降量约0.2 m。热应力主要影响罐体径向位移

最大径向位移约为0.28 m。增加罐底刚度

有助于减小罐体的沉降与应力

底部最优设计刚度为5 MPa/m。罐体形变对罐壁刚度的变化不敏感

而且罐壁刚度的增加导致应力急剧增加

因此

不可限制由于热应力引起罐体产生的径向位移。该文研究结果可为实际大型高温熔盐储罐的设计提供理论指导。

Abstract

This paper establishes thermal and stress models for molten salt storage tanks

and investigates the effects of the support stiffness of tank walls and bottom plates on the mechanical properties of storage tanks under the action of thermal-mechanical coupling and variable liquid levels. The results show that the temperature distribution of storage tanks with different liquid levels is roughly consistent

and the maximum temperature difference of approximately 4 ℃ exists at the position of the outward-extending weld of the bottom plate and the connection position of the dome roof. Hydrostatic pressure mainly affects the settlement of the tank body

with the maximum settlement amount being about 0.2 m under the full-load condition. Thermal stress mainly affects the radial displacement of the tank body

and the maximum radial displacement is approximately 0.28 m. Increasing the stiffness of the tank bottom is conducive to reducing the settlement and stress of the tank body

and the optimal design stiffness of the bottom is 5 MPa/m. The deformation of the tank body is insensitive to the change of tank wall stiffness

and the increase of tank wall stiffness leads to a sharp increase in stress. Therefore

it is not advisable to restrict the radial displacement of the tank body caused by thermal stress. The research results of this paper can provide theoretical guidance for the design of practical large-scale high-temperature molten salt storage tanks.

关键词

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references

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