期刊文献+

基于FLUENT的某型燃气轮机迷宫密封机理研究 被引量:2

Study on the Characteristics of Gas Turbine Labyrinth Seal Based on the FLUENT
下载PDF
导出
摘要 针对影响透平机械中旋转迷宫密封泄漏特性的3个因素:密封间隙、压比、转速,以某型燃气轮机的隔板迷宫密封为研究对象,数值研究了各个因素对迷宫密封泄漏特性的影响规律,计算分析了该迷宫密封在不同工况下的泄漏特性。研究结果表明:随着转子转速的增加,迷宫密封泄漏量减小;相同密封间隙下,泄漏系数随着压比的提高而近似线性增加;相同转速下,泄漏量随着密封间隙的减小而减小,且泄漏量减小的速度越来越慢。 The effects of sealing clearance, pressure ratio and rotational speed on the discharge behavior of turbomachine rotational labyrinth seal are numerically investigated, A diaphragm labyrinth seal of gas turbine is adopted to obtained the leakage flow characteristics of the labyrinth seal under different operating conditions. Numerical simulation results show that the leakage of labyrinth seal decreases with the increase of the rotational speed; The leakage coefficients increases linearly with pressure ratio at the fixed sealing clearance; In addition, the leakage decreases with the decrease of gap width at the same rotational speed.
出处 《汽轮机技术》 北大核心 2012年第2期115-116,157,共3页 Turbine Technology
基金 国家863计划重型燃气轮机重大项目资助(项目编号:2008AA05A302)
关键词 迷宫密封 密封间隙 泄漏特性 数值模拟 labyrinth seal seal clearance leakage behavior numerical simulation
  • 相关文献

参考文献10

  • 1R E Chupp,R C Hendricks,SBLattime. Sealing in Turbomachinery[J].Journal of Propulsion and Power,2006,(02):313-.doi:10.2514/1.17778.
  • 2李军,晏鑫,宋立明,邓清华,丰镇平,江生科,孔祥林,孙奇,王建录,王为民.透平机械密封技术研究进展[J].热力透平,2008,37(3):141-148. 被引量:32
  • 3S B Lattime,B M Steinetz. Turbine Engine Clearance Control systems:Current Practices and Future Directions[J].Journal of Propulsion and Power,2004,(02):302-311.
  • 4林公舒;杨道刚.现代大功率发电用燃气轮机[M]北京:机械工业出版社,2007.
  • 5D L Rhode,S R Sobolik. Simulation of Subsonic Flow Through a Labyrinth Seal[J].Journal of Engineering for Gas Turbines and Power,Transactions of the ASME,1986,(04):674-680.
  • 6K 塔鲁达纳夫斯基;李均卿;刁元康.非接触密封[M]北京:机械工业出版社,1986.
  • 7G Vermes. A Fluid Mechanics Approach to the Labyrinth Seal Leakage Type[J].ASME Journal of Engineering for Power,1961,(04):161-169.
  • 8H Martin. LabyrinthPackings[J].Engineering,1908,(01):35-.
  • 9A Egli. The leakage of Steam Through Labyrinth Seals[J].Transactions of the ASME,1935.115-122.
  • 10W J Kearton. Leakage of Air through Labyrinth Glands of Staggered Type[J].Proceedings of the Institution of Mechanical Engineers,1952.180-195.

二级参考文献26

  • 1荆建平,孟光,赵玫,赵三星,刘言.超超临界汽轮机汽流激振研究现状与展望[J].汽轮机技术,2004,46(6):405-407. 被引量:43
  • 2李军,晏鑫,丰镇平.刷式密封泄漏流动特性影响因素的研究[J].热能动力工程,2007,22(3):250-254. 被引量:8
  • 3[15]Li J.YanX,Li G J,Feng Z P.Effects of Pressure Ratio and Sealing Clearance on Leakage Flow Characteristics in the Rotating Honeycomb Labyrinth Seal[C],Proceedings of ASME Turbo Expo 2007.Power for LaIld,Sea,and Air,2007,Montreal,CANADA,GT2007-27740.
  • 4[16]Denecke J,Dullenkopf K,Wittig S,et al.Experimental Investigation of the Total Temperature Increase and Swirl Development in Rotating Labyrinth Seals[C].ASME-Paper GT2005-68677,2005.
  • 5[17]Deneeke J,faerber J,Dullenkopf K,Bauer H J.Dimensional Analysis and Scaling of Rotating Seals[C].ASME paper GT2005-68676,2005.
  • 6[18]Yah X,Li J,Song L,Feag Z.Investigations on the Discharge and Total Temperature Increase Characteristics of the Labyrinth Seals With Honeycomband Smooth Lands[A].Proceedings of ASME Turbo Expo 2008 Power for Land,Sea,and Air GT2008-50399,June,2008,Berlin,Germany.
  • 7[19]Dogu Y.Investigation of Brush Seal Flow Characteristics Using Bulk Porous Medium Approach[J].Journal of Engineering for Gas Turbines and Power,2005,127:136~144.
  • 8[20]Chew J W,Guardino C.Simulation of Flow and Heat Transfer in the Tip of a Brush Seal[J].International Journal of Heat and Fluid Flow,2004,25:649~658.
  • 9[23]Childs D W.Turbomachinery Rotordynamics:Phenomena,Modeling and Analysis[M].led,john wiley & Sons,Inc:New York,1993.
  • 10[24]Sodas T,Andres L S.A Bulk Flow Model for Off-Centered Honeycomb Gas Seals[J].ASME Journal of Engineering for Gas Turbines and Power,2007,129(1):185~194.

共引文献31

同被引文献5

引证文献2

相关作者

内容加载中请稍等...

相关机构

内容加载中请稍等...

相关主题

内容加载中请稍等...

浏览历史

内容加载中请稍等...
;
使用帮助 返回顶部