Multi-stage magnetic-fluid seals for operating in water – life test procedure, test stand and research results
Multi-stage magnetic-fluid seals for operating in water – life test procedure, test stand and research results
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DOI：
10.2478/v10012-012-0041-3
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发表时间：
2012-12
期刊：
影响因子：
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通讯作者：
L. Matuszewski
中科院分区：
文献类型：
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作者：
L. Matuszewski
磁流体密封耐久性研究的边缘准则对密封的技术实用性至关重要。水中磁流体密封技术相对于气体或真空环境是一个非常困难的技术问题。磁性液体与环境中未经检测的液体直接接触时，经常会出现问题。本文介绍了多级旋转磁流体密封与自来水永久接触运行的实验方法和定义。阐述了磁流体密封的特殊试验方法，并进行了实际应用，以确定磁流体密封的主要特性。这些特性是：临界压力、临界运动速度和密封的工作寿命。对几种具有疏水性能的商品化硅基磁流体进行了密封性能试验。文中以表格、剖面图和图表的形式介绍了试验台及其特点和试验结果。可以看出，多级磁流体密封可以在有限的运动速度和工作持续时间范围内有效地用于水中旋转轴密封。
ABSTRACT The edge criteria for magnetic-fluid seals durability research are critical for the seal’s technological usefulness. The magnetic fluid seal technology in water is much more difficult technological problem in comparison to gas or vacuum environment. There is always problem with immediate contact between magnetic fluid and the environmental uninspected liquids. In the paper are presented ways of experiments definitions carried out with multi-stage rotating magnetic fluid seal operating in permanent contact with utility water. The special test procedures have been elaborated and practically used, with the aim to define main characteristics of magnetic fluid seals. These characteristics were: critical pressure, critical motion velocity and working life of the seal. Some grades of commercial, silicon based magnetic fluids of hydrophobic properties were tested in sealing system. The test stand and its features as well as results of tests are presented in the form of tables, cross section draws and diagrams. In conclusion one can see that multi-stage magnetic-fluid seals could be efficiently used in water for rotating shaft seals in a limited range of motion velocity and work lasting.