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船用低温蒸发器并联流激振动应力分析

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针对船用LNG气化流程中丙烷换热所需的低温板式蒸发器内部双相流介质的稳态流场进行仿真分析.研究并联丙烷蒸发器最大流速工况下预应力模态分析,计算丙烷蒸发器固有频率及阵型.在并联丙烷蒸发器内部稳态流场计算结果基础上,利用软件计算得到压力脉动时域谱和频域谱,进行谐响应振动应力耦合分析计算,完成蒸发器最大流速工况下振动应力分析.
Stress Analysis of Parallel Flow-induced Vibration in Low-temperature Evaporators for Ships
The steady flow field of dual-phase flow medium in low-temperature plate evaporator for propane heat transfer in marine LNG gasification process was simulated and analyzed,including analyzing the par-allel propane evaporator's pre-stress mode at the maximum flow rate,calculating its natural frequency and type thereof.Basing on calculating the parallel propane evaporator's internal steady flowfield,making use of the software calculate both time domain spectrum and frequency domain spectrum of the pressure pulsa-tions were implemented,including coupling analysis and calculating harmonic response vibration stress so as to analyze vibration stress of the evaporator at the maximum flow rate.

low-temperature evaporatorplate heat exchangerexcitation vibration stresssimulation anal-ysis

张元吉、杨树、冯子栋、韦聪、邓国龙、李树勋

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兰州兰石换热设备有限责任公司

海洋石油工程股份有限公司

兰州理工大学石油化工学院

低温蒸发器 板式换热器 激振动应力 模拟分析

2024

化工机械
天华化工机械及自动化研究设计院有限公司

化工机械

CSTPCD
影响因子:0.325
ISSN:0254-6094
年,卷(期):2024.51(6)