The study of automatic control sluice-gate innovation

• Main Authors: Chung-Mu Wu, 吳仲穆
• Other Authors: Jerry Chih-Tsong Su
• Format: Others
• Language: zh-TW
• Published: 2010
• Online Access: http://ndltd.ncl.edu.tw/handle/15593560748743765183

碩士 === 國立高雄第一科技大學 === 機械與自動化工程所 === 98 === Sluice-gate is a critical apparatus for draining and irrigating in agriculture. The study is particularly aimed at those areas where are remote and difficult to reach. The automatic-control sluice-gate must be designed robust and reliable to achieve the purpose of self-adjusting the water level of the irrigation canals. The Farm Irrigation Association can utilize the benefit of self-adjusting the flow rate of the sluice-gate by the balance relationship among waterpower, and counterweight, and the gate weight to well manage the water canals. In this study, the inclination angle of gate is defined as θ, and the pivot shaft length P is greater than the supported shaft length y. Since the counterweight mechanism is designed to be movable, the gravity center G(XG,YG) of the entire gate varies while it moves. Therefore, when YG is constant, XG varies as the counterweight is self-adjusted. As a result, it makes the operation a lot more flexible. The angle of the center ψ, referring to X-Y axis, will be changed when the counterweight is adjusted so that the sluice-gate open at the appropriate timing to well control the level of the water canal. Through the experiments, the results show that the relationship between the constant h0, upstream water-head level, and the counterweight W must be multiplied by the correction coefficient C0 to cope with the field test results. Based on the experiments of adjustment of the gate and the ability of flooding, a good relationship between the flow rate, Q, and the counterweight, W, is obtained and is helpful for the researchers and users.