汾河水库为了下游灌溉需要,在隧洞出口处装设了一台直径2.2米的锥形阀。该阀是由北京勘测设计院负责设计的。阀门自1959年安装1960年投入运行以来,到目前已运行两年多,运行情况正常,未发现振动、汽蚀及磨损等异常现象。根据使用单位反映,锥形阀使用可靠,操作维护简单,可任意调节通过流 Fenhe Reservoir for downstream irrigation needs, installed at the tunnel exit of a diameter of 2.2 meters of the cone valve. The valve is designed by Beijing Survey and Design Institute. Valves have been in operation for more than two years since they were put into operation in 1959 and have been operating normally since 1959. No abnormalities such as vibration, cavitation and abrasion were found. According to the use of units reflect the use of conical valve reliable, easy operation and maintenance, can be adjusted through the flow