Modal Analysis of the Unanchored High-temperature Molten SaltStorage Tank for a 50 MW Concentrated Solar Power Plant

DING Xiaoli; DU Baocun; XU Chao; LEI Yonggang

doi:10.19805/j.cnki.jcspe.2026.240717

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Modal Analysis of the Unanchored High-temperature Molten SaltStorage Tank for a 50 MW Concentrated Solar Power Plant

更新时间：2026-10-10

- Modal Analysis of the Unanchored High-temperature Molten SaltStorage Tank for a 50 MW Concentrated Solar Power Plant
- Chinese Journal of Power Engineering Vol. 46, Issue 2, Pages: 133-138(2026)
- 作者机构：
  
  1. 太原理工大学土木工程学院,山西,太原,030024
  2. 华北电力大学能源动力与机械工程学院,北京,102206
- 作者简介：
- 基金信息：
- DOI：10.19805/j.cnki.jcspe.2026.240717
  CLC：
- Online First：10 February 2026，
  
  Published：10 February 2026
- 稿件说明：
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丁霄莉,杜保存,徐超,雷勇刚. 50 MW光热电站非锚固式高温熔盐储罐的模态分析动力工程学报, 2026, 46(2): 133-138 https://doi.

org/10.19805/j.cnki.jcspe.2026.240717
丁霄莉,杜保存,徐超,雷勇刚. 50 MW光热电站非锚固式高温熔盐储罐的模态分析动力工程学报, 2026, 46(2): 133-138 https://doi. DOI： 10.19805/j.cnki.jcspe.2026.240717.

org/10.19805/j.cnki.jcspe.2026.240717 DOI：

摘要

基于声-固耦合方法模拟分析了某商用50 MW塔式光热电站熔盐储罐的模态特性

研究了锚固方式对满液位熔盐储罐液晃特性的影响

并探讨了不同液位高度和运行温度等参数对非锚固熔盐储罐模态频率的影响。结果表明:满液位下非锚固熔盐储罐前3阶易出现刚体位移振型

且3~20阶的液晃频率与锚固罐相比差异显著

因此宜选用非锚固方式对熔盐储罐进行模态分析;不同液位下储罐的液晃频率随液位高度的升高而增大

且各阶液晃频率均低于空罐的固有频率

空罐自振周期在0.06~0.1 s

而液晃周期长达2~15 s

表明充盐状态下的储罐液晃频率在长周期地震波激励作用下极易发生共振现象;运行温度对熔盐的液晃频率影响不大

但预热温度对空罐的固有频率影响显著

运行温度升高100 K时空罐的最高阶固有频率仅降低2.5%

为避免预热状态下大容量熔盐罐体在高频地震波作用下产生失稳现象

实际工程中对熔盐储罐结构进行抗震设计时应考虑预热温度对空罐体频率的影响。

Abstract

Based on the acoustic-structural coupling method

the modal characteristics of a molten salt storage tank in a commercial 50 MW tower-type concentrated solar power (CSP) plant were simulated. The influence of anchoring methods on the sloshing characteristics of molten salt storage tanks under full liquid level conditions was investigated

and the effects of parameters such as different liquid levels and operating temperatures on the modal frequencies of unanchored molten salt storage tanks were explored. Results show that the first three orders of unanchored molten salt storage tanks under full liquid level are prone to rigid-body displacement modes

and the sloshing frequency values of the 3rd to 20th orders differ significantly from those of anchored tanks. Therefore

the unanchored configuration is more suitable for modal analysis of molten salt storage tanks. The sloshing frequency of the tank increases with the rise of liquid level under different liquid level conditions

and the sloshing frequency of each order is lower than the natural frequency of the empty tank. The natural vibration period of the empty tank ranges from 0.06-0.1 s

while the sloshing period is as long as 2-15 s

indicating that the sloshing frequency of the tank in the salt-filled state is highly susceptible to resonance under the excitation of long-period seismic waves. Operating temperature has little effect on the sloshing frequency of molten salt

but preheating temperature has a significant impact on the natural frequency of the empty tank. When the operating temperature increases by 100 K

the highest-order natural frequency of the empty tank only decreases by 2.5%. To avoid instability of large-capacity molten salt tanks under the action of high-frequency seismic waves in the preheated state

the influence of preheating temperature on the frequency of empty tanks should be taken into account in the seismic design of molten salt tank structures in practical engineering.

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周凡宇, 曾晋珏, 王学斌. 碳中和目标下电化学储能技术进展及展望[J]. 动力工程学报, 2024, 44(3):396-405.ZHOU Fanyu, ZENG Jinyu, WANG Xuebin. Progress and prospect of electrochemical energy storage for carbon neutralization[J]. Journal of Chinese Society of Power Engineering, 2024, 44(3):396-405.

徐二树, 黄钰琛, 孔艳强, 等. 塔式太阳能光热发电系统蒸发器动态特性研究[J]. 动力工程学报, 2023, 43(6):710-716.XU Ershu, HUANG Yuchen, KONG Yanqiang, et al. Study on dynamic characteristics of steam generator in solar tower power generation system[J]. Journal of Chinese Society of Power Engineering, 2023, 43(6):710-716.

杜保存, 黄丽娟, 雷勇刚, 等. 填充床熔盐蓄热器的动态温度与应力特性[J]. 储能科学与技术, 2022, 11(7):2141-2150.DU Baocun, HUANG Lijuan, LEI Yonggang, et al. Dynamic study on the thermal and stress performances of the molten salt packed-bed thermal storage tank[J]. Energy Storage Science and Technology, 2022, 11(7):2141-2150.

赵鹤锦. 大型储液罐在地震作用下的响应分析[D]. 大连:大连理工大学, 2021.

TURSUNKULULY T, ZHANGABAYN, SULEIMENOV U, et al. Analysis of strength and eigenfrequencies of a steel vertical cylindrical tank without liquid, reinforced by a plain composite thread[J]. Case Studies in Construction Materials, 2023, 18:e02019.

樊海龙. 大型立式储油罐地震响应及隔震研究[D]. 天津:河北工业大学, 2020.

张美玲. 大型非锚固储油罐抗震性能研究[D]. 成都:西南交通大学, 2018.

吴济航. 基础不均匀沉降下储液罐地震动力响应分析[D]. 杭州:浙江大学, 2021.

崔双双, 何青, 李京浩, 等. 太阳能热发电系统熔盐储罐模态特性分析[J]. 太阳能学报, 2021, 42(10):124-128.CUI Shuangshuang, HE Qing, LI Jinghao, et al. Modal analysis of molten salt storage tank in solar thermal power system[J]. Acta Energiae Solaris Sinica, 2021, 42(10):124-128.

尹家聪. 模态分析的自动多重子结构法与动力重分析研究[D]. 北京:北京大学, 2012.

PETROVI AC'G K, DOBRI AC'G D, GOTI AC'G I, et al. Comparison of empty and oil-filled transformer tank mode shapes using experimental and FEM modal analysis[J]. Energies, 2024, 17(3):589.

潘传禹. 双金属LNG储罐的地震响应分析[D]. 北京:中国石油大学, 2022.

DU Baocun, GUO Yifan, XU Chao, et al. Dynamic creep and stress performances of the packed-bed thermal energy storage tank with molten salt EPCM particles[J]. Applied Thermal Engineering, 2023, 225:120247.

LUBBERS J, GRAAFF R. A simple and accurate formula for the sound velocity in water[J]. Ultrasound in Medicine & Biology, 1998, 24(7):1065-1068.

ASME Boiler and Pressure Vessel Committee on Materials. ASME boiler and pressure vessel code, section II-materials part D properties (metric)[S]. New York:American Society of Mechanical Engineers, 2013.

中华人民共和国住房和城乡建设部, 中华人民共和国国家质量监督检验检疫总局. 立式圆筒形钢制焊接油罐设计规范:GB 50341-2014[S]. 北京:北京计划出版社, 2015:110-117.

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