Magnetic bearing applications & economics
Magnetic bearing applications & economics
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DOI：
10.1109/pcic.2010.5666819
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发表时间：
2010-12
期刊：
影响因子：
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通讯作者：
D. Eaton;J. Rama;S. Singhal
中科院分区：
文献类型：
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作者：
D. Eaton;J. Rama;S. Singhal
磁轴承提供了无数的操作优势和效率提高传统的油润滑轴承。它们在过去的30年里一直在使用，但由于包括成本在内的几个原因，它们仅限于需要其独特功能的利基应用（如高速涡轮机）。该技术的最新进展使这些轴承在更广泛的应用中更加实用。它们变得更小、更简单、更经济。作为回应，API标准617[1]（离心式压缩机）和684[2]（转子动力学）正在进行修订，并将包括有关磁轴承的章节。其他API标准肯定会效仿。因此，现在是时候回顾磁轴承的实际运行历史和性能，同时重新审视经济性。除了对这些轴承的工作原理进行非常基本（和一般）的解释外，本文还将研究一个用户在炼油应用中的实际操作经验，以及石油和天然气行业的整体经验（包括气体输送方面的丰富经验）。该文件还将提供一个详细的经济分析的成本/效益与油润滑轴承在各种应用是重要的石油和化学工业。
Magnetic bearings offer a myriad of operational advantages and efficiency improvement over traditional oil lubricated bearings. They have been in use for the past thirty years, but for several reasons, including cost, have been limited to niche applications (such as high-speed turbomachines) that required their unique capabilities. Recent advances in the technology are making it more practical to apply these bearings in a broader range of applications. They have become much smaller, simpler and economical. In response, API Standards 617[1] (centrifugal compressors) and 684[2] (rotor dynamics) are being revised and will include sections on magnetic bearings. Other API Standards will surely follow suit. Hence, it is timely to review the actual operating history and performance of magnetic bearings, while taking a fresh look at the economics. In addition to a very basic (and generic) explanation of how these bearings work, this paper will examine the actual operating experience of one user in refining applications, as well as the overall experience within the oil & gas industry (including substantial experience in gas transmission). The paper will also offer a detailed economic analysis of the cost/benefit vs. oil lubricated bearings in a variety of applications that are important to the petroleum and chemical industry.