冶金动力
冶金動力
야금동력
METALLURGICAL POWER
2014年
3期
43-46
,共4页
透平机械%密封%能量耗散%密封失效
透平機械%密封%能量耗散%密封失效
투평궤계%밀봉%능량모산%밀봉실효
turbine machinery%sealing%energy dissipation%sealing failure
以湘钢2#TRT轴端密封功能失效的问题展开研究。运用目前国际上通行的透平机械内部流场研究的数值模拟办法，建立三维迷宫密封与蜂窝密封结构并划分网格，使用商业CFD计算软件FLUENT对迷宫密封和蜂窝密封的内部流场进行数值模拟，深入分析工作介质在蜂窝密封中的流动本质。通过数值模拟并结合改造工程实践，从理论和实践两方面验证了TRT轴端密封结构改造后的良好效果。
以湘鋼2#TRT軸耑密封功能失效的問題展開研究。運用目前國際上通行的透平機械內部流場研究的數值模擬辦法，建立三維迷宮密封與蜂窩密封結構併劃分網格，使用商業CFD計算軟件FLUENT對迷宮密封和蜂窩密封的內部流場進行數值模擬，深入分析工作介質在蜂窩密封中的流動本質。通過數值模擬併結閤改造工程實踐，從理論和實踐兩方麵驗證瞭TRT軸耑密封結構改造後的良好效果。
이상강2#TRT축단밀봉공능실효적문제전개연구。운용목전국제상통행적투평궤계내부류장연구적수치모의판법，건립삼유미궁밀봉여봉와밀봉결구병화분망격，사용상업CFD계산연건FLUENT대미궁밀봉화봉와밀봉적내부류장진행수치모의，심입분석공작개질재봉와밀봉중적류동본질。통과수치모의병결합개조공정실천，종이론화실천량방면험증료TRT축단밀봉결구개조후적량호효과。
The sealing failure of the No.2 TRT shaft end was investigated. The flow na-ture of operation media in the honeycomb seal was analyzed in depth by using numerical simulation method worldly popular in studying internal flow field of turbine to establish 3D labyrinth seal and honeycomb seal and divide grid. CFD calculation software FLUENT was used to numerically simulate the internal flow field of labyrinth seal and honeycomb seal. The good result of the structural transformation of the TRT shaft end seal is demonstrated theoretically and practically through numerical simulation as well as the practical result of the transformation project.
