现有的小型泵—蓄势器传动水压机管路系统中的闸阀都是采用手动,它有两个缺点:一是开关费力,二是在紧急情况下难以迅速切断高压水源。采用液压闸阀虽可克服上述缺点,但系统比较复杂。实际上,水压机系统中的最低液面阀也是一个液压闸阀,只是在现有系统中它只受水位信号控制。我们 The existing small pump - accumulator drive hydraulic pipe system in the valve are used manually, it has two drawbacks: First, the switch laborious and the second is difficult to quickly cut off the high-pressure water in an emergency situation. Although the use of hydraulic gate valve to overcome the above shortcomings, but the system is more complicated. In fact, the lowest level valve in a hydraulic press system is also a hydraulic gate valve, which is only controlled by the water level signal in existing systems. we