| SF_6压气式断路器中热回流现象的数值研究 |
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| 引用本文： | 林莘,连建华. SF_6压气式断路器中热回流现象的数值研究[J]. 高压电器, 2000, 36(1): 19-21 |
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| 作者姓名： | 林莘 连建华 |
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| 作者单位： | 沈阳工业大学,110023 |
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| 基金项目： | 教育部霍英东教育基金，， |
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| 摘 要： | 建立了一种描述ＳＦ_６压气式断路器在短路开断过程中灭弧室内发生的热阻塞和热回流现象的数学模型，利用改进型流体网格法对该模型进行了数值模拟，计算了在开断的不同时刻灭弧室中的气流特性，根据数值计算的结果对热阻塞及热回流现象时断路器的开断性能的影响进行了分析。
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| 关 键 词： | ]六氟化硫断路器 压气式灭弧室 换热 数值计算 |
| 修稿时间： | 1999-06-29 |
Numerical Study of Thermal Back-flow in SF_6 Puffer Circuit Breaker |
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| Lin Xin,Lian Jianhua. Numerical Study of Thermal Back-flow in SF_6 Puffer Circuit Breaker[J]. High Voltage Apparatus, 2000, 36(1): 19-21 |
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| Authors: | Lin Xin Lian Jianhua |
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| Abstract: | A mathematical model is built to analyze the thermal block and thermal back-flow happening in the are-extinguishing chamber of SF6 puffer circuit breaker during the short circuit current interruption. The numerical simulation for such model is performed by applying the modified fluid-in-cell method, and the SF6 gas flow property during the interrupting process is calculated. Then the effects of thermal back-flow and thermal block on interrupting characteristics of the circuit breaker are analyzed on the basis of the calculated results. |
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| Keywords: | SF6 circuit breaker puffer type are chamber thermal exchange numerical simulation |
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