摘要
提出了一种新型结构的轴封———带有侧齿的曲径轴封。该型轴封可以在不增加轴封段长度的前提下,增加轴封齿数,减少轴封漏汽(气)量。同时,根据该型轴封的工作原理,给出了这种新型轴封漏汽 (气 )量的计算方法。并以某国产 300MW汽轮机为例,对采用该型轴封的漏汽(气)量进行了对比计算。计算结果表明,采用该轴封能有效的减少漏汽(气)量,从而提高机组的经济性。
In this paper, a new kind of labyrinth packing with lateral teeth is put forward. On the premise that the length of labyrinth packing is not increased, the new labyrinth packing may make the teeth added and the leakage decreased. At the same time, the method of calculating steam leakage is given in terms of the working principle of this new kind of labyrinth packing. By taking a nation-made 300MW steam turbine as example, the calculation of leakage of new and common labyrinth packing is done. The results indicate that by using the labyrinth packing with lateral teeth the leakage is decreased, so that the economy of steam turbine is improved.
出处
《汽轮机技术》
北大核心
2005年第1期49-51,共3页
Turbine Technology
关键词
轴封
曲径轴封
漏汽量
packing
labyrinth packing
leakage
