船闸闸室的充泄水过程一般都通过开启输水廊道的控制阀门来完成,常用的阀门开启方式有均速及变速开启两种。一般均采用均速开启方式,有时为了能在阀门相同开度下获得较高的闸室水深,以减轻或消除廊道内的负压和阀门底缘的空穴流时,需要限制阀门初期的开启速度,待闸室水位上升后,再允许加快开启速度。这种变速开启方式可以是连续变速、一 The process of filling and discharging the ship lock chamber is usually accomplished by turning on the control valve of the water delivery corridor. There are two commonly used valve opening methods: uniform speed and variable speed opening. Generally are used to open at a uniform speed, and sometimes in order to be able to get the same valve opening under the same chamber depth to reduce or eliminate negative pressure within the gallery and the valve bottom edge of the hole flow, you need to limit the initial opening of the valve Speed, to be raised after the water level in the lock chamber, and then allow to speed up the opening speed. This variable speed open mode can be continuous speed, one