Nghiên cứu hệ thống đóng mở tự động đối với cửa van bản lật trục đáy

Abstract

Claple valve gates have many advantages in regulating water level but it is difficult to avoid impact and vibration when operating; not able to work automatically. In this paper, an automatic on-off support system has been proposed basing on the principle of force balance and indoor experiment.The installed automatic on-off system has been changed the claple valve gate to a hydraulic automatic valve gate (the flipped claple valve gate) which works stably under different conditions and meets requirements of water level regulation, flood discharge and saline prevention. The research results showed that the automatic on-off system operates flexibly and smoothly with its simple structure. It is easy to install and maintain; convenient for upgrading and renovating because it is built-in. The automatic flipped valve gates are applied to the work of Phai Vong dam, Bac Kan province, Vietnam.