本文重点介绍了针对进人门螺栓松动和疲劳断裂,造成水淹厂房事故发生而设计的一种反锁装置,该装置成功解决了大中型水轮发电机组蜗壳、尾水锥管进人门因把合螺栓断裂而水淹厂房的问题,进一步提高机组的安全与经济运行可靠性,社会经济价值明显,具有推广前景。 This article focuses on the introduction of a door bolt loosening and fatigue fracture, resulting in flooding plant accident designed and a kind of anti-lock device, the device successfully solved the large and medium-sized hydro genset volute, The problem of breaking the joint bolt and flooding the factory floor further improves the reliability of the unit in terms of safety and economy, has obvious social and economic value and has the promotion prospect.