关键词: 1 000 MW发电机组, 润滑油流量分配, 函数模型, 渐进对比, 轴瓦温度

Abstract:

In order to save the time of bearing lube oil flow distribution in the actual commissioning process of 1 000 MW power unit， and reduce the complexities of commissioning process due to the restriction of lead bearing type， a function model that could fit different bearing oil flow distribution characteristics was proposed， based on the research of commissioning data of different units. The concept of progressive comparison method was presented through the comparative analysis on the lube oil amount of bearings with different sizes. The method that combined function model and progressive comparison was used in the commissioning process of elliptic bearing lube oil flow distribution in a power plant. The results show that the bearing temperature can reach excellent standard after 168 h operation at full load. Therefore， this commissioning method can not only ensure the commissioning effect， but also save the commissioning time.

Key words: 1 000 MW power unit, lube oil distribution, function model, progressive comparison, bearing temperature