摘要
为提高绞吸挖泥船的施工效率,在原船动力系统不变的前提下,基于计算流体动力学对泥泵进行优化设计,预测泥泵的水力性能。通过比例为0.25的模型试验验证泥泵的水力性能。结合耐磨试验,研制出高效高耐磨水下泥泵和舱内泥泵,并成功应用于3500m^3/h绞吸挖泥船输送系统的改造。泥泵改造后进行实船清水测试,泥泵性能得到再次验证。实船泥泵改造后的施工分析数据显示:施工排距适应性更广,生产效率明显提高,经济效益显著,同时降低油耗,达到节能增效的目的。
In order to increase construction efficiency of cutter suction dredger, the dredger pump is optimized and designed with the computational fluid dynamics, and the hydraulic performance of dredger pump are estimated. The hydraulic performance of the dredger pump is verified by the model test （ratio is 0.25）. The high efficient and high wear-resisting underwater pump and board pump are manufactured with the wear test, and the pumps are applied in the delivery system transformation of 3 500 m3/h cutter suction dredger. The performance of the pumps is verified again by comparing with the result of numerical simulation. The construction data after dredging reconstruction reveals that the construction efficiency and the discharge distance of cutter suction dredger are increased greatly, and the obvious economic performance and social performance are brought, which showes that the goals of energy saving and efficiency improvement are achieved.
出处
《港口科技》
2018年第2期15-22,共8页
Port Science & Technology
关键词
绞吸挖泥船
泥泵
计算流体动力学
模型试验
耐磨试验
cutter suction dredger
dredge pump
computational fluid dynamics
modeltest
wear test
