Water–sediment separation efficiency prediction of gill-piece separation device
Hongfei Tao,
Yang Zhou,
Mahemujiang Aihemaiti,
Qiao Li,
Wenxin Yang,
Youwei Jiang,
Zijing Wu
Affiliations
Hongfei Tao
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Yang Zhou
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Mahemujiang Aihemaiti
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Qiao Li
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Wenxin Yang
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Youwei Jiang
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
Zijing Wu
College of Water Conservancy and Civil Engineering, Xinjiang Agricultural University, Urumqi 830052, China and Xinjiang Key Laboratory of Hydraulic Engineering Security and Water Disasters Prevention, Urumqi 830052, China
As the key piece of equipment of a micro-irrigation system, the filter can prevent clogging of the emitter and ensure normal operation of the micro-irrigation system. A gill-piece separation device is used for the removal of viscous sediment, which helps to reduce the sediment concentration and decrease the burden on the filter. In this study, using the water–sediment separation efficiency as an evaluation index, a uniform orthogonal experiment was conducted to study the flow rate, sediment concentration, and gill-piece spacing using a physical model. Based on the experimental results of the physical model, multiple linear regression and projection pursuit regression were used for analysis. The results showed that the order of the factors affecting the water–sediment separation efficiency was as follows: flow rate at muddy water inlet > gill-piece spacing > sediment concentration. The correlation coefficients of the water–sediment separation efficiency models established using multiple linear regression and projection pursuit regression were 0.93 and 0.98, respectively. Both models could predict the water–sediment separation efficiency and determine the optimal working conditions of the gill-piece separation device. HIGHLIGHTS A prediction model for water–sediment separation efficiency of the gill-piece separation device was established under the conditions of sediment concentration of 2–12 kg/m3, flow rate of 0.3–1.1 m3/h, and gill-piece spacing of 5–11 cm.; The order of influence of each factor on the water–sediment separation efficiency is as follows: flow rate at muddy water inlet > gill-piece spacing > sediment concentration.;
