| 高压加热器管束振动机理简析 |
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| 引用本文： | 牛忠华,沈丽莲.高压加热器管束振动机理简析[J].电站辅机,2011,32(1):1-5. |
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| 作者姓名： | 牛忠华 沈丽莲 |
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| 作者单位： | 上海电气电站设备有限公司电站辅机厂,上海,200090 |
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| 摘 要： | 高压加热器是电站机组中重要的辅机设备之一.为了确保高压加热器在高参数下的安全可靠地运行,对高压加热器的关键部件管束进行流体振动分析是十分必要的.在管壳式换热器内,因流体的流动而诱发管束振动的四个机理是:漩涡脱落,紊流抖振,流体弹性不稳定性和声共振.现从分析高压加热器内部结构着手,根据高压加热器的工作原理和实际工况,分别...
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| 关 键 词： | 电站 高压 加热器 管束 振动 共振 稳定性 机理 |
Analysis on the Vibration Mechanism of the Tube Bundles in the High Pressure Feedwater Heater |
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| NIU Zhong-hua,SHEN Li-lian.Analysis on the Vibration Mechanism of the Tube Bundles in the High Pressure Feedwater Heater[J].Power Station Auxiliary Equipment,2011,32(1):1-5. |
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| Authors: | NIU Zhong-hua SHEN Li-lian |
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| Affiliation: | NIU Zhong-hua,SHEN Li-lian(The Power Station Auxiliary Equip.Plant,Shanghai Electric Power Generation Equipment Co.,Ltd.,Shanghai,200090,China) |
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| Abstract: | High pressure feedwater heater is one of the important equipment in a power plant.It is quite necessary to analyze the fluid vibration for the tube-bundle the key component in the high pressure feedwater heater so as to ensure HP heater in a safe & reliable operation with higher parameters.There are four mechanism of tube-bundle vibration caused by fluid flowing inside the tubular heat exchanger,i.e.vortex shedding,turbulent buffeting,fluid elastic instability and acoustic vibration.Based on the working pri... |
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| Keywords: | power plant high pressure feedwater heater tube bundle vibration resonance stability mechanism |
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