| 朱烨森,陈思,于世杰,徐云泽,窦宝捷,胡葆文.巨型水电站深孔门槽金属损伤特性[J].装备环境工程,2025,22(1):170-177. ZHU Yesen,CHEN Si,YU Shijie,XU Yunze,DOU Baojie,HU Baowen.Damage Characteristics of Deep Hole Gate Slot of Giant Hydropower Station[J].Equipment Environmental Engineering,2025,22(1):170-177. |
| 巨型水电站深孔门槽金属损伤特性 |
| Damage Characteristics of Deep Hole Gate Slot of Giant Hydropower Station |
| 投稿时间：2024-03-13 修订日期：2024-11-22 |
| DOI：10.7643/issn.1672-9242.2025.01.017 |
| 中文关键词: 巨型水电站 门槽 超高水头 冲刷 空化 腐蚀中图分类号:TG172 文献标志码:A 文章编号:1672-9242(2025)01-0170-08 |
| 英文关键词:giant hydropower station gate slot ultra-high water head erosion cavitation corrosion |
| 基金项目:工业装备结构分析国家重点实验室基金(GZ22118)；材料腐蚀与防护四川省重点实验室开放基金(2023CL12) |
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| Author | Institution |
| ZHU Yesen | Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China;State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Liaoning Dalian 116024, China;Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Sichuan Zigong 643000, China |
| CHEN Si | Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China |
| YU Shijie | Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China |
| XU Yunze | State Key Laboratory of Structural Analysis for Industrial Equipment, Dalian University of Technology, Liaoning Dalian 116024, China |
| DOU Baojie | Material Corrosion and Protection Key Laboratory of Sichuan Province, Sichuan University of Science & Engineering, Sichuan Zigong 643000, China |
| HU Baowen | Power China Huadong Engineering Corporation Limited, Hangzhou 311122, China |
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| 中文摘要: |
| 目的 研究巨型水电站深孔门槽处的水动力特性，并探究门槽金属在恶劣流态下的损伤行为。方法 采用k-ε双方程紊流模型和有限体积离散方法，对电站深孔水流进行数值模拟，研究深孔局部体型的变化对水流的影响，并通过冲刷腐蚀喷嘴实验，探究流速对门槽钢衬的腐蚀影响。结果 深孔局部体型的变化对水流压强和流速分布的影响很大，100 m量级水头可使深孔出口最大流速达45 m/s，且流速越大，门槽钢衬的点蚀电流增大。结论 304不锈钢的点蚀趋势随着流速的增大而增加，并且随着流速继续提升至真实运行工况，冲刷腐蚀和空蚀问题会愈加突出，需采取一定防护措施。 |
| 英文摘要: |
| The work aims to study the hydraulic characteristics of the deep hole slot in the giant hydropower station, and explore the damage behavior of the metal in the slot under adverse flow conditions. In this paper, k-ε turbulent flow model and finite volume discrete method were used to numerically simulate the deep hole flow in the hydropower station, and study the influence of the local shape of the deep hole on the flow. The influence of flow velocity on the corrosion of the slot steel lining was investigated through an erosion corrosion nozzle experiment. The results showed that the change of the local shape of the deep hole had a great influence on the distribution of water pressure and velocity. The maximum flow velocity at the outlet of the deep hole could reach 45 m/s with a water head of 100 m. The pitting current of slot steel lining increased with the increase of flow velocity. In conclusion,the pitting tendency of 304 stainless steel increases with the increase of flow velocity, and as the flow velocity continues to increase to the actual operating conditions, problems such as erosion corrosion and cavitation will become more prominent, and certain protective measures need to be taken. |
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