safety gate
5.Abstract: This article gives some opinions on development idea fo r automatic acquiring and controlling MIS for reservoirs(including safety superv isory and measurement,gate control,water supply management,hydrological data acq u isition and forecasting),involving the structure and function of system,hardwar e and software design,selection of development tools,etc.
8.The spillway tunnel at Xiluodu Hydropower Station has the characteristics of large discharge and high flow velocity, for which the hydraulic characteristics of the emergency gate and the dynamic properties of gate structure during shutting down under hydrodynamic condition are directly related to the technical feasibility and the safety reliability of the spillway tunnel operation.
9.This paper introduce that application of the metal bellows for valves,how to design and chose type of the bellows for stop valve、gate valve、regulating valve,safety valve,ball valve and so on,and several problems which should be paid attention to in choosing type and application in practice for the bellow.
