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汽轮机透平油质含水量

2025-01-16

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王卫 中天钢铁热电厂

汽轮机透平油质水分控制标准是什么?透平油中进水的主要原因是什么?

一般电厂规定汽轮机透平油质控制标准是控制油中水分≤100mg/L。

汽机透平油中进水的原因主要有:

(1) 轴封间隙大或轴封汽压力过高,漏出的水汽通过相近的轴承油挡吸入润滑油回油中;

(2)冷油器冷却水压力高于油压且冷油器泄漏;

(3)油系统停运后冷油器泄漏,造成冷却水泄漏至油侧;

(4)油箱排烟风机故障,未能及时将油箱中水汽排出。

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