什么是汽轮机保安部套

2024-12-18 05:55:32
推荐回答(1个)
回答1:

保安系统的作用是对主要运行参数、转速、轴向位移、真空、油压、振动等进行监视,当这些参数超过一定的范围时,保护系统动作使汽轮机减少负荷或停止运行,以确保汽轮机的运行安全,防止设备损坏事故的发生。此外,保安系统对某些被监视量还有指示作用,对维护汽轮机的正常运行有着重要意义。
保安系统的作用如下:
(1)当主蒸汽门全开状态时,能维持汽轮机空负荷运行;
(2)当汽轮机由满负荷突然甩到空负荷时,能维持汽轮机的转速在危急保安器动作转速以下;
(3)主蒸汽门和调汽门门杆、错油门、油动机及调速系统的各活动、连接部件,没有卡涩和松动现象。当负荷变化时,调汽门应平稳地开、关;负荷不变化时,负荷不应有摆动;
(4)在设计允许范围内的各种运行方式下,调速系统必须能保证使机组顺利并入电网,加负荷到额定、减负荷到零、与电网解列;
(5)调速系统的全部零件要安全、可靠;
(6)当危急保安器动作后,应保证主汽门关闭严密。

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