| 磁流体密封液下泵结构设计与试验 |
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| 引用本文： | 关红艳,杨逢瑜,王其磊. 磁流体密封液下泵结构设计与试验[J]. 排灌机械, 2011, 29(1): 21-25. DOI: 10.3969.j.issn.1674-8530.2011.01.005 |
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| 作者姓名： | 关红艳 杨逢瑜 王其磊 |
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| 作者单位： | 1. 兰州理工大学能源与动力工程学院,甘肃,兰州,730050
2. 兰州理工大学磁性物理与磁技术研究所,甘肃兰州,730050 |
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| 基金项目： | 甘肃省自然科学基金资助项目(ZS981-A22-022) |
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| 摘 要： | 为了解决输送核原料的液下泵工作过程中存在无色剧毒氟化氢气体溢出的问题，在此类液下泵的主轴上选取磁流体为密封材料，应用磁流体密封技术，设计了一套采用螺旋齿的磁流体密封结构，并推导出了密封压差设计公式．通过理论分析和试验研究，讨论了液下泵在液体工作环境下的转速、温度、磁流体体积、密封间隙和磁场强度对磁流体密封承压能力的影响．结果表明，设置在液下泵上的磁流体密封结构的承压能力随着转速、温度和密封间隙的增大而下降；随着磁场强度的升高而增大，且密封承压能力试验值最大可达8×10^5Pa；随着磁流体体积的增大而增大，但是当磁流体体积超过一定的临界值后，磁流体密封的承压能力将不再随着磁流体体积的改变而改变，仅仅保持在某一恒定值．该磁流体密封结构的密封方法将会有效地解决输送核原料的液下泵中害氟化氢气体泄漏的问题．
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| 关 键 词： | 液下泵 磁流体 密封 氟化氢 承压能力 |
Structural design and experiment of submerged pump with magnetic fluid seal |
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| Guan Hongyan,Yang Fengyu,Wang Qilei. Structural design and experiment of submerged pump with magnetic fluid seal[J]. Drainage and Irrigation Machinery, 2011, 29(1): 21-25. DOI: 10.3969.j.issn.1674-8530.2011.01.005 |
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| Authors: | Guan Hongyan Yang Fengyu Wang Qilei |
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| Affiliation: | Guan Hongyan1,Yang Fengyu2,Wang Qilei1(1.College of Energy and Power Engineering,Lanzhou University of Technology,Lanzhou,Gansu 730050,China,2.Magnetism and Magnetic Technology Research Institute,China) |
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| Abstract: | In order to solve the leakage problem of colorless and virulent hydrogen fluoride in the transportation process of nuclear raw materials of submerged pump,magnetic fluid sealing technology was introduced.A set of sealing structure adopting screw tooth was designed,and design formulas of seal pressure differential were deduced.Through theoretical analysis and experimental investigations,the impact of rotation speed,temperature,magnetic fluid volume,sealing clearance and magnetic field intensity on sealing lo... |
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| Keywords: | submerged pump magnetic fluid seal hydrogen fluoride loading capacity |
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