动水关闭的平面事故闸门体型优化试验研究
TV32+1; 在已建水利水电工程中,利用自重、配重与水柱压力动水关闭的平面事故闸门,时常会出现无法完全闭门的现象,严重威胁水电站的正常运行及上下游安全.为探究其产生原因并找到有效的解决措施,该文针对进水口平面事故闸门出现的类似问题,采取水力学模型试验的方法,通过门体水柱压力试验以及不同体型闸门的闭门持住力对比,并结合闸门水动力荷载特性进行分析,明确事故闸门在动水中无法完全关闭是由工程摩擦系数(0.209)过大所致;基于伯努利原理,从增加水柱压力的角度出发,采取在平面闸门迎流面底部增设前缘板块,并对其下表面端部进行加厚处理的优化方案,在模型试验中,达到了增大闸门闭门持住力、促进闸门顺利关闭的效...
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| Published in | 农业工程学报 Vol. 35; no. 12; pp. 142 - 149 |
|---|---|
| Main Authors | , , , , |
| Format | Journal Article |
| Language | Chinese |
| Published |
天津大学水利工程仿真与安全国家重点实验室,天津,300350
15.06.2019
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| Subjects | |
| Online Access | Get full text |
| ISSN | 1002-6819 |
| DOI | 10.11975/j.issn.1002-6819.2019.12.017 |
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| Abstract | TV32+1; 在已建水利水电工程中,利用自重、配重与水柱压力动水关闭的平面事故闸门,时常会出现无法完全闭门的现象,严重威胁水电站的正常运行及上下游安全.为探究其产生原因并找到有效的解决措施,该文针对进水口平面事故闸门出现的类似问题,采取水力学模型试验的方法,通过门体水柱压力试验以及不同体型闸门的闭门持住力对比,并结合闸门水动力荷载特性进行分析,明确事故闸门在动水中无法完全关闭是由工程摩擦系数(0.209)过大所致;基于伯努利原理,从增加水柱压力的角度出发,采取在平面闸门迎流面底部增设前缘板块,并对其下表面端部进行加厚处理的优化方案,在模型试验中,达到了增大闸门闭门持住力、促进闸门顺利关闭的效果,表明了该方案对解决已建工程平面事故闸门在动水关闭过程中无法下落问题的有效性. |
|---|---|
| AbstractList | TV32+1; 在已建水利水电工程中,利用自重、配重与水柱压力动水关闭的平面事故闸门,时常会出现无法完全闭门的现象,严重威胁水电站的正常运行及上下游安全.为探究其产生原因并找到有效的解决措施,该文针对进水口平面事故闸门出现的类似问题,采取水力学模型试验的方法,通过门体水柱压力试验以及不同体型闸门的闭门持住力对比,并结合闸门水动力荷载特性进行分析,明确事故闸门在动水中无法完全关闭是由工程摩擦系数(0.209)过大所致;基于伯努利原理,从增加水柱压力的角度出发,采取在平面闸门迎流面底部增设前缘板块,并对其下表面端部进行加厚处理的优化方案,在模型试验中,达到了增大闸门闭门持住力、促进闸门顺利关闭的效果,表明了该方案对解决已建工程平面事故闸门在动水关闭过程中无法下落问题的有效性. |
| Author | 徐国宾 盛传明 李文胜 刘昉 谷欣玉 |
| AuthorAffiliation | 天津大学水利工程仿真与安全国家重点实验室,天津,300350 |
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| Author_FL | Sheng Chuanming Xu Guobin Li Wensheng Gu Xinyu Liu Fang |
| Author_FL_xml | – sequence: 1 fullname: Liu Fang – sequence: 2 fullname: Gu Xinyu – sequence: 3 fullname: Li Wensheng – sequence: 4 fullname: Sheng Chuanming – sequence: 5 fullname: Xu Guobin |
| Author_xml | – sequence: 1 fullname: 刘昉 – sequence: 2 fullname: 谷欣玉 – sequence: 3 fullname: 李文胜 – sequence: 4 fullname: 盛传明 – sequence: 5 fullname: 徐国宾 |
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| Keywords | 水中 平面闸门 优化 事故闸门 压力 动水闭门 闸门体型优化 闭门持住力 |
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| Title | 动水关闭的平面事故闸门体型优化试验研究 |
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