What does it mean that a steam turbine cannot maintain no-load operation? [Video]
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https://www.bilibili.com/video/BV1SxLQznE4M 【Douyin】: Hua Hai Chuan Liu hcbbs 【WeChat subscription account】: hcbbs2004 Hai Chuan Chemical Forum: bbs.hcbbs.com Company brand promotion: 18840911640 Submit posts; use internal messaging to get in touch; Cleaner
The inability of a turbine to maintain no-load operation refers to the phenomenon where, after the external load is removed and the steam supply is at its minimum, the turbine continues to accelerate gradually, losing control and failing to maintain a steady rated speed. This is because even when the valves are closed to their minimum opening, a small amount of steam still enters the turbine, resulting in energy accumulation. This leads to a continuous increase in speed, compromising the stability of the unit and posing a risk of overspeed. Therefore, during operation, turbines are generally not allowed to operate at no load for extended periods; a certain load must be applied to ensure stable and safe operation. .