| 水利工程总溶解气体过饱和问题探讨 |
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| 引用本文： | 王皓冉,周卓灵,行亚楠,黄鑫,蔺港,吴佳阳.水利工程总溶解气体过饱和问题探讨[J].水利水电科技进展,2010,30(5):12-15. |
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| 作者姓名： | 王皓冉 周卓灵 行亚楠 黄鑫 蔺港 吴佳阳 |
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| 作者单位： | 四川大学水利水电学院,四川,成都,610065 |
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| 摘 要： | 从对总溶解气体(TDG)过饱和概念的分析入手,阐述TDG过饱和的危害。通过对不同典型水体TDG饱和度的测量,表明泄流可以导致水体TDG含量增加甚至过饱和。在此基础上,采用试验研究的方法,探讨了TDG过饱和产生原因及其释放过程,表明水利工程泄流引起的TDG过饱和与泄流掺气、压力、紊动强度、水温等要素相关,并由此提出减缓水利工程TDG过饱和影响的建议。
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| 关 键 词： | 总溶解气体 过饱和气体 水利工程 泄流 温度 紊动强度 |
| 修稿时间： | 2010/11/1 0:00:00 |
On supersaturation of total dissolved gas for hydraulic projects |
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| WANG Hao-ran,ZHOU Zhuo-ling,XING Ya-nan,HUANG Xin,LIN Gang,WU Jia-yang.On supersaturation of total dissolved gas for hydraulic projects[J].Advances in Science and Technology of Water Resources,2010,30(5):12-15. |
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| Authors: | WANG Hao-ran ZHOU Zhuo-ling XING Ya-nan HUANG Xin LIN Gang WU Jia-yang |
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| Abstract: | Based on the analysis of its concept,the hazards of the supersaturation of the total dissolved gas(TDG) were discussed.Through the measurements of saturation degrees of TDG by different models for typical water bodies,hydraulic sluicing may lead to the increase of TDG concentration and even to its supersaturation.On such a basis,the method of experimental study was employed to study the causes of the supersaturation of TDG and its release process.It indicated that the supersaturation of hydraulic projects due to hydraulic sluicing closely related to aeration,pressure,turbulence intensity,water temperature and so on.Some suggestions were proposed for reducing the supersaturation of TDG for hydraulic projects. |
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| Keywords: | total dissolved gas supersaturated gas hydraulic project discharge temperature turbulence intensity |
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