水力浮动式升船机充泄水阀门启闭方式研究

Study on mode of on-off operation of water filling-emptying valve for hydraulic floating ship lift

根据水力浮动式升船机的工作原理,研究建立了输水系统、平衡重浮筒——承船厢系统的概化模型,并采用数值计算方法研究了充泄水阀门合理的启闭方式。结果表明,充泄水阀门的水力控制是保证水力浮动式升船机运行稳定和准确停位的关键。通过采用阀门间歇开启方式,在承船厢入、出水前通过设定合适的阀门开度,控制系统输水流量,降低承船厢入、出水的速度,可以有效地控制承船厢运行满足要求。

Based on the operation principle of the hydraulic floating ship lift, a conceptual model for its water conveyance sys- tem, floating balancing weight-ship lift chamber system is established, and then the on-off operation mode of the water fillingemptying is studied with the numerical computations. The resuhs show that the hydraulic control of the water filling and emptying valve is the key-link to ensure the stable operation and accurate positioning of the hydraulic floating ship lift. Through an intermit tent on-off operation mode of the valve, the operation of ship lift chamber can be effectively controlled to meet the requirement concerned by means of setting an appropriate opening of the valve before the chamber being in and out of water, controlling water conveyance flow rate of the system and lowering the speeds of the chamber being in and out of water.