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以小河道清淤为主要目的,应用SolidWorks软件平台设计了疏浚离析器,采用流体机械试验方法验证了离析器的功效。室内试验研究了三种不同孔径的喷嘴在离析器1/4小开度阀位工况下的管道出口含沙量与密度,现场清淤试验在河道中检验了疏浚器的泥浆输送特性与机械特性,研究分析了235 m长距离或45 m短距离泥浆输送情况下的扬程高度与排淤量的运行参数,发现理想的喷嘴孔径为9.0 mm,在6 m扬程时短距离泥浆输送末端流量为105.81 m3/h。结果表明基于伯努利效应的离析器具有体积小、出流量大、泥浆浓度高等优点,能较好适应河道宽度、水深、土质等要素变化。
The main purpose of dredging small rivers, the application of SolidWorks software platform designed dredging centrifuge, using fluid mechanical test method to verify the effectiveness of the separator. The indoor experiment has studied the sediment concentration and the density of the pipe outlet of the three kinds of nozzles with different apertures in the condition of 1/4 small opening valve position of the separator. The dredging test on the site has tested the mud conveying characteristics of the dredger and the mechanical Characteristics and studied the operating parameters of the head height and the amount of desilting in the case of 235 m long distance or 45 m short-distance slurry transportation, the ideal nozzle aperture was found to be 9.0 mm. At the 6 m head, the short- 105.81 m3 / h. The results show that the Bernoulli effect-based separator has the advantages of small volume, large outflow, high mud concentration, and can better adapt to changes in river width, water depth, soil quality and other factors.