| 超大型自然通风冷却塔进风口区域阻力特性研究 |
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| 引用本文： | 张东文,张宇阳. 超大型自然通风冷却塔进风口区域阻力特性研究[J]. 中国水利水电科学研究院学报, 2016, 0(5): 328-333 |
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| 作者姓名： | 张东文 张宇阳 |
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| 作者单位： | 国核电力规划设计研究院, 北京 100095,冀北电力有限公司检修分公司, 北京 102400 |
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| 摘 要： | 随着淋水面积的逐渐增大，现行的阻力计算公式已不再适用于超大型冷却塔的计算。本文通过对应建立超大型冷却塔冷态气流阻力试验模型，对不同规模冷却塔的支撑结构（包括人字柱及塔内支撑柱）、不同淋水填料阻力、不同进风口高度等进行组合试验，对其相应阻力特性进行了分析，在此基础上提出了适用于超大型常规逆流式自然通风冷却塔进风口区域阻力系数计算公式，并经过了工程验证。
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| 关 键 词： | 超大型自然通风冷却塔 进风口 阻力特性 |
| 收稿时间： | 2016-05-04 |
Research on inlet resistant of super large natural draft cooling tower |
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| ZHANG Dongwen and ZHANG Yuyang. Research on inlet resistant of super large natural draft cooling tower[J]. Journal of China Institute of Water Resources and Hydropower Research, 2016, 0(5): 328-333 |
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| Authors: | ZHANG Dongwen and ZHANG Yuyang |
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| Affiliation: | State Nuclear Power Design and Research Institute, Beijing 100095, China and Jibei Electric Power Maintenance Company, Beijing 102400, China |
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| Abstract: | Cooling tower is becoming larger and larger,so the present calculation formula can''t be used to calculate the resistance of super large natural draft cooling tower. In this paper, we try to establish the test model of super large natural draft cooling tower (without hot water), then test it under different condi-tions,including different support structures,different fills and different inlet heights,and analyze the resis-tance of each part, and propose a calculation formula which could be used to calculate the inlet resistance of super large natural draft cooling tower,and at the end,verify the new formula through engineering prac-tice. |
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| Keywords: | super large natural draft cooling tower inlet resistance |
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