特高压变压器潜油泵的冲蚀磨损仿真  

Erosion Simulation of Submersible Pump in an Ultra-High Voltage Transformer

作　　者：刘子恩 范明豪 赵跃 陈海鹏 苏文 马凤翔 LIU Zien;FAN Minghao;ZHAO Yue;CHEN Haipeng;SU Wen;MA Fengxiang(State Grid Anhui Electric Power Research Institute,Hefei 230601,China;College of Energy Engineering,Zhejiang University,Hangzhou 310027,China)

机构地区：[1]国网安徽省电力有限公司电力科学研究院,合肥230601 [2]浙江大学能源工程学院,杭州310027

出　　处：《腐蚀与防护》2024年第4期69-74,共6页Corrosion & Protection

基　　金：国网安徽省电力有限公司科技项目(521205220006)。

摘　　要：对潜油泵在工作时的冲蚀和磨损现象开展了数值模拟,计算了不同颗粒粒径、颗粒含量和潜油泵转速下的冲蚀速率。结果表明:主要冲蚀区域集中在叶片上缘,随着金属颗粒尺寸和含量的增加,潜油泵各部件的平均冲蚀率也会增加。此外,在相同冲蚀条件下,整个叶轮表面的冲蚀分布呈现出不对称性,每个叶片的冲蚀形态和冲蚀速率都具有差异;蜗壳受到冲蚀的区域在周向上的分布角度一般不超过180°。当叶轮转速由900 r/min提高到1500 r/min时,叶轮的平均冲蚀速率会增大6倍。所得结论可为潜油泵的杂质监测设计和故障预警方案提供参考。Numerical simulations were conducted on the erosion and wear phenomena of submersible pumps during operation,and the erosion rates were calculated under different particle sizes,particle concentrations,and submersible pump speeds condition.The results show that the main erosion area was concentrated on the upper edge of the blade,and with the increase of metal particle size and concentration,the average erosion rate of each component of the submersible pump would also increase.In addition,under the same erosion conditions,the erosion distribution on the entire impeller surface exhibited asymmetry,with differences in the erosion morphology and rate of each blade.The distribution angle of the eroded area of the snail shell in the circumferential direction generally did not exceed 180°.When the impeller speed was increased from 900 r/m to 1500 r/m,the average erosion rate of the impeller increased by 6 times.The obtained conclusions could provide reference for the impurity monitoring design and fault warning scheme of submersible oil pumps.

关 键 词：潜油泵 冲蚀磨损 仿真分析 金属颗粒 

分 类 号：TE98[石油与天然气工程—石油机械设备]