HuangGu Thermal Power Plant CC12-4.90/0.98/0.294 condensing turbine with two intermediate stage extractions appears excessive vibration in the operation.

某热电厂CC12-4.90/0.98/0.294型双抽冷凝式汽轮机在运行中出现了振动过大现象，停机揭缸后发现次末级有两片叶片从叶片约三分之一处断掉。

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Cooling tower is one of the most important equipments of condensing and cooling system in power plant, and its operational performance influences greatly the safety and economy of generating unit.

冷却塔是汽轮发电机组重要的冷端设备之一，其冷却性能对电站的经济和安全运行有重要的影响。

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