流体机械

2006, (07) 15-18+23

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离心压缩机轴向力调控与平衡盘密封改进研究
Thrust Load Adjustment and Seal Improvement of Centrifugal Compressor

王维民;高金吉;李双喜;江志农;
WANG Wei-min,GAO Jin-ji,LI Shuang-xi,JIANG Zhi-nong(Beijing University of Chemical Technology,Beijing 100029,China)

摘要(Abstract):

综合利用干气密封的泄漏量低和迷宫密封可靠性高的特点,同时考虑在原有装备上改造的可行性,设计了迷宫-干气组合式平衡盘密封系统,并用计算流体动力学(CFD)的方法验证该设计思路的有效性。在此基础上,引入轴位移故障自愈调控系统,从而能够使得透平压缩机安全高效运行。
The low leakage feature of dry gas seal and high reliability of labyrinth is utilised and the feasibility of the improvements is taken on existing equipment into account at the same time to design a combined labyrinth——dry gas seal on balancing piston.Also,Computational Fluid Dynamics(CFD) was used to verify this strategy. On the base of this,axial displacement Fault Self-Recovering(FSR) system was introduced to assure the safety and reliability of turbocompressor.

关键词(KeyWords): 离心压缩机;效率;干气密封;轴向推力;故障自愈
centrifugal compressor;efficiency;dry gas seal;axial thrust load;fault Self-recovering

Abstract:

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基金项目(Foundation): 国家自然科学基金(50575016)

作者(Author): 王维民;高金吉;李双喜;江志农;
WANG Wei-min,GAO Jin-ji,LI Shuang-xi,JIANG Zhi-nong(Beijing University of Chemical Technology,Beijing 100029,China)

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