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中国电机工程学报 2007, 27(5) 76-80 DOI:
ISSN: 0258-8013 CN: 11-2107/TM |
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| 发电 |
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套管式直流蒸汽发生器静态和动态特性的仿真研究 |
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张伟 边信黔 夏国清 |
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哈尔滨工程大学动力与核能工程学院 哈尔滨工程大学动力与核能工程学院 哈尔滨工程大学动力与核能工程学院 |
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摘要：
套管式直流蒸汽发生器是一种采用双面传热的新型蒸汽发生器。通过假设中心管、环形管外侧与环形通道流体间的热流密度相等，应用集中参数和可移动边界的处理方法，建立了套管式直流蒸汽发生器的数学模型。在建立的数学模型基础上对蒸汽发生器进行了稳态和动态仿真计算。稳态仿真结果与Babcock & Wilcox 的19管直流蒸汽发生器试验结果进行了比较验证，3段(过冷段、蒸发段、过热段)的长度随功率变化的特性符合理论分析，动态仿真结果与热工水力定性机理分析结果相一致。 |
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关键词：
直流蒸汽发生器
动态特性
仿真计算
数学模型
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Simulation Research of Static and Dynamic Characteristic of Once-through Steam Generator in Concentric Annuli Tube |
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Abstract:
The once-through steam generator(OTSG) in concentric annuli tube is a new type of steam generator which applies double sides to transfer heat. The heat flux between water of centric tube, outside annuli tube and that of annulus channel is assumed to be equal, and then the steam generator's model is built by lumped parameters with moving boundary. In the basis of the built model, static and dynamic characteristic is analyzed. The static characteristic is proved by experiment results in a 19-tube once-through steam generator of Babcock & Wilcox. The characteristic that lengths of three regions (subcooled region, nucleate boiling region, superheat region) change with power can be explained by theory analysis. The dynamic characteristic accords with the heat and hydraulics and the results of analysis accord with the mechanism. |
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Keywords:
once-through steam generator
dynamic characteristic
simulation calculation
mathematic model
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收稿日期 2006-03-16 修回日期 1900-01-01 网络版发布日期 |
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DOI: |
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基金项目:
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通讯作者: 张伟 |
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作者简介: |
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| Copyright by 中国电机工程学报 |
