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为了防止水泵在停机时叶轮产生高速逆转现象,通过技改使液压启闭机的闭门速度加快,更改原来的控制系统,现场整定动作时间,满足机组停运时的要求,使机组达到安全可靠的运行。
In order to prevent the impeller from generating high-speed reversing phenomenon when the pump is shut down, the closing speed of the hydraulic hoist is accelerated through technological transformation. The original control system and the on-site setting operation time are modified to meet the requirements of the unit when it is out of service so as to ensure the safety and reliability of the unit Run