某台汽轮发电机组轴承瓦温高原因分析
发布时间：2019-07-18 09:00
【摘要】：某汽轮机组轴承瓦温偏高,左右两侧温度偏差较大,对机组安全、稳定运行产生了一定影响。测试了机组停机过程中各轴承相对标高以及顶轴油压变化情况。分析结果指出,真空对#4轴承和#5轴承之间相对标高的影响较大。顶轴油压和标高监测数据都表明,抽真空后#4轴承载荷过重。轴承与轴颈之间的扬度偏差进一步导致轴承两侧瓦温不均。
[Abstract]:The bearing pad temperature of a steam turbine unit is on the high side, and the temperature deviation on the left and right sides is large, which has a certain influence on the safe and stable operation of the unit. The relative elevation of each bearing and the change of oil pressure of the top shaft during the shutdown of the unit are tested. The analysis results show that vacuum has a great influence on the relative elevation between # 4 bearing and # 5 bearing. The monitoring data of top shaft oil pressure and elevation show that # 4 bearing is overloaded after vacuum pumping. The lift deviation between the bearing and the journal further leads to the uneven tile temperature on both sides of the bearing.
【作者单位】： 东南大学火电机组振动国家工程研究中心;
【分类号】：TM311
[Abstract]:The bearing pad temperature of a steam turbine unit is on the high side, and the temperature deviation on the left and right sides is large, which has a certain influence on the safe and stable operation of the unit. The relative elevation of each bearing and the change of oil pressure of the top shaft during the shutdown of the unit are tested. The analysis results show that vacuum has a great influence on the relative elevation between # 4 bearing and # 5 bearing. The monitoring data of top shaft oil pressure and elevation show that # 4 bearing is overloaded after vacuum pumping. The lift deviation between the bearing and the journal further leads to the uneven tile temperature on both sides of the bearing.
【作者单位】： 东南大学火电机组振动国家工程研究中心;
【分类号】：TM311
【参考文献】
相关期刊论文 前5条
1 刁立新;汽机低压缸轴承温度高的分析与治理[J];电力安全技术;2003年03期
2 周德元;;300MW汽轮发电机组轴承瓦温异常原因分析及处理[J];电力安全技术;2007年12期
3 田新启;高N，
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