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水电站虹吸进水口运行情况的好坏,基本上取决于虹吸管真空形成与破坏的功能。对于真空的形成,目前国内多采用真空泵抽气或水流夹气来实现;真空破坏则利用真空坏破阀开启来达到,但需配备一套投资较高的能源装置。二者均有改进的必要。为此,青海省水利厅勘测设计院等单位研究试装了具有真空形成和破坏双重功能的水力装置。其结构简单,无转动部件,动作时间短,手动、电动均可操作,投资节省。
Hydropower siphon inlet and outlet operation is good or bad, basically depends on the siphon vacuum formation and destruction functions. For the formation of vacuum, the current domestic use of vacuum pump suction or flow of Qi to achieve; vacuum damage is the use of vacuum broken broken valve to open to achieve, but with a high investment required to install energy devices. Both have the need for improvement. To this end, Qinghai Provincial Department of Water Resources Survey and Design Institute and other units to test the installation of a vacuum with the formation and destruction of dual functions of hydraulic devices. Its structure is simple, no rotating parts, short action time, manual, electric can be operated, investment savings.