| 透气性测试装置密封结构的优化 |
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| 引用本文： | 刘孝锋,汪仁煌.透气性测试装置密封结构的优化[J].机械工程学报,2011,47(23). |
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| 作者姓名： | 刘孝锋 汪仁煌 |
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| 作者单位： | 1. 广东工业大学自动化学院 广州510090;泉州师范学院物理与信息工程学院 泉州362000
2. 广东工业大学自动化学院 广州510090 |
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| 摘 要： | 基于压差法的薄膜透气性测试装置,其测试结果受测试装置的密封性能、测试的环境温度及压力和温度检测器检测性能的影响.在压力和温度检测器的检测性能给定和环境温度相对稳定的情况下,影响测试结果的主要因素是测试装置的密封性能,以目前现有的密封材料和密封技术,测试装置的密封性能主要与其密封结构和相应的结构比有关.基于此,给出测试装置双密封结构的系统临界时间求解表达式；分析测试装置双密封结构压力变化特性和时间流阻容量常数特性；得出在总密封体积限定的条件下双密封结构的优化结构比;给出相应的仿真结果和试验结果.结果表明:该双密封结构的优化是正确和合理的.为透气性测试装置双密封结构优化设计的实际应用提供了理论依据.
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| 关 键 词： | 双密封结构 系统临界时间 时间流阻容量常数 优化 结构比 |
Optimization of Gas Permeability Test Device Seal Structure |
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| LIU Xiaofeng
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WANG Renhuang.Optimization of Gas Permeability Test Device Seal Structure[J].Chinese Journal of Mechanical Engineering,2011,47(23). |
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| Authors: | LIU Xiaofeng WANG Renhuang |
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| Affiliation: | LIU Xiaofeng1,2 WANG Renhuang1(1.Faculty of Automation,Guangdong University of Technology,Guangzhou 510090,2.Physics and Information Communication Academy,Quanzhou Normal University,Quanzhou 362000) |
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| Abstract: | The test result of the film gas permeability test device basing on differential pressure is affected by the seal performance of test device,the environmental temperature and the performance of pressure and temperature detector.When the performance of pressure and temperature detector is given and the test temperature is relatively stable,the test result is decided by seal performance of test device,when currently available seal material and seal technology are used,the seal performance is decided by seal st... |
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| Keywords: | Double seal structure System critical time Time flow resistance capacity constant Optimization Structure ratio |
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