| 复杂工况下深海采矿混输泵有限元分析 |
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| 引用本文： | 王凯,陆钇霖,刘厚林,程智明,管禹,邹丽,王磊.复杂工况下深海采矿混输泵有限元分析[J].排灌机械工程学报,2023,41(4):331-337. |
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| 作者姓名： | 王凯 陆钇霖 刘厚林 程智明 管禹 邹丽 王磊 |
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| 作者单位： | 1. 江苏大学国家水泵及系统工程技术研究中心, 江苏 镇江 212013; 2. 大连理工大学船舶工程学院, 沈阳 大连 116024; 3. 中国船舶重工集团公司第七○二研究所, 江苏 无锡 214082 |
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| 摘 要： | 采用流固耦合及有限元方法对布放和混输等复杂工况下3级深海采矿混输泵进行强度计算,分析了泵内流场分布、转子部件应力应变及临界转速,并进行了500 m级深海采矿混输系统海上试验.结果表明:设计流量下,混输泵的计算扬程为124.30 m,相对误差为0.27%;布放工况时,混输泵最大变形仅为0.365 mm,最大应力为73.971 MPa;混输工况时,泵最大变形为0.315 mm,最大应力为58.86 MPa;转子部件前3阶模态仅沿泵轴方向变形,并未发生扭曲,而后3阶模态呈“S”形扭曲变形;转子部件1阶固有频率对应临界转速为2 476 r/min;海试布放过程中混输泵安全可靠,混输工况下泵稳定运行时长超过57 h,实现了2次24 h连续无故障运行,且矿石颗粒体积浓度达到11.7%.
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| 关 键 词： | 混输泵 深海采矿 布放 有限元分析 海上试验 |
| 收稿时间： | 2021-10-14 |
Finite element analysis of mixed transport pump in deep-sea mining under complicated conditions |
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| WANG Kai,LU Yilin,LIU Houlin,CHENG Zhiming,GUAN Yu,ZOU Li,WANG Lei.Finite element analysis of mixed transport pump in deep-sea mining under complicated conditions[J].Journal of Drainage and Irrigation Machinery Engineering,2023,41(4):331-337. |
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| Authors: | WANG Kai LU Yilin LIU Houlin CHENG Zhiming GUAN Yu ZOU Li WANG Lei |
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| Institution: | 1. Research Center of Pumps, Jiangsu University, Zhenjiang, Jiangsu 212013, China; 2. School of Naval National Engineering, Dalian University of Technology, Dalian, Shenyang 116024, China; 3. 702 Research Institute of China Shipbuilding Industry Corporation, Wuxi, Jiangsu 214082, China |
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| Abstract: | Fluid-solid coupling and finite element method were used to calculate the strength of the three-stage deep-sea mining mixed-transport pump under complex working conditions such as deployment and mixed transportation. An offshore test of a 500 m mixed transport system in deep-sea mining was carried out. The results show that the calculated head of the pump is 124.30 m under the design flow rate whereby the relative error is 0.27 %; under the launching condition, the maximum deformation of the pump is only 0.365 mm and the maximum stress is 73.971 MPa; under the mixed transport condition, the maximum deformation of the pump is 0.315 mm and the maximum stress is 58.860 MPa; the first three modes of the rotor component only deform along the direction of the pump shaft without distortion, while the latter three modes are S-shaped distortion; the critical speed corresponding to the first-order natural frequency of the rotor parts is 2 476 r/min; during the launching process of the offshore test, the pump was found to be safe and reliable, and mixed-transport time in the pump exceeded 57 hours, which was realized to double during 24 hours continuous trouble-free operations. Meanwhile, volume concentration of the ore particles in the offshore test reached 11.7%. |
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| Keywords: | mixed transport pump deep-sea mining launching finite element analysis offshore test |
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