300MW汽轮机轴端汽封改造后节能效果分析

Analysis on Energy-saving Modification of Shaft Seal of 300MW Steam Turbine

某发电有限公司1#机组汽轮机和给水泵汽轮机都存在轴封漏汽较严重、热耗与设计值相比偏高的问题,对原有的梳齿式汽封改为接触式铁素体蜂窝汽封,有效地提高了汽轮机和给水泵汽轮机热效率,减少了轴封漏汽量,达到了节能改造的预期目标,有利于机组经济运行。

There exit serious problems as shaft seal leakage, therma loss higher than design. But ferrite alvelate seal instead of the comb seal, the leakage can be reduced, the thermal efficiency up, and the unit operates economically. using the contact can be highly put