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中南大学学报(自然科学版)

Journal of Central South University

第49卷    第5期    总第285期    2018年5月

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文章编号:1672-7207(2018)05-1110-08
深海采矿高扬程粗颗粒多级输送电泵研究
杨恒玲1, 2,刘少军1, 2,邹伟生3

(1. 中南大学 机电工程学院,湖南 长沙, 410083; 2. 中南大学 深圳研究院,广东 深圳, 518000; 3. 湖南大学 流体力学及其装备研究所,湖南 长沙,410082)

摘 要: 针对扬矿电泵高扬程、粗颗粒过流及轴向流等问题,以深海采矿多级输送电泵整体设计为研究对象,通过对比国内外优秀的深海采矿泵模型,提出高扬程粗颗粒多级输送电泵的设计方法,并进行四级扬矿电泵设计。分析并计算多级输送电泵所受的外载荷、轴向力和螺栓承受的拉力,利用有限元分析软件对泵体的强度和刚度进行计算,最后对两级扬矿电泵的工作特性进行实验研究。研究结果表明:当设计流量为432 m3/h时,两级电泵的扬程为82 m;当结核浆体体积分数为0~10%时,泵的功率-流量曲线变化平缓,泵的颗粒过流能力强,泵的各部件均满足强度和刚度的要求,验证了多级输送电泵设计方法的有效性。

 

关键字: 深海采矿;扬矿技术;扬矿电泵;渣浆泵

Research on multistage lifting motor pump of high lift and coarse particles in deep sea mining
YANG Hengling1, 2, LIU Shaojun1, 2, ZOU Weisheng3

1. School of Mechanical and Electrical Engineering, Central South University, Changsha 410083, China; 2. Shenzhen Research Institute of Central South University, Shenzhen 518000, China; 3. Institute of Fluid Mechanics and Equipage, Hunan University, Changsha 410082, China

Abstract:Aiming at the problem of high head, coarse particle over current and axial flow in lifting motor pump, the whole design of multistage pump for deep sea mining was selected as research object. By contrasting the excellent model of deep sea mining pump at home and abroad, a design method of multistage pump for high lift and coarse particle was proposed, and the design of four stage lifting motor pump in deep sea mining was completed. The external load, axial force and bolts bear tensile force of multistage pump were analyzed and calculated, and the strength and rigidity for multistage pump body were calculated by using the finite element analysis software. Finally, the operating characteristics for two stage lifting pump were tested. The result shows that when the designed flow rate is 432 m3/h, the head of the two stage pump is 82 m. When the concentration of the slurry is from 0 to 10%, the pump power-flow curve is mild. All parts of the pump meet the requirements for strength and rigidity, which verifies the validity of the design method of multistage pump.

 

Key words: deep sea mining; lifting technology; lifting motor pump; slurry pump

中南大学学报(自然科学版)
  ISSN 1672-7207
CN 43-1426/N
ZDXZAC
中南大学学报(英文版)
  ISSN 2095-2899
CN 43-1516/TB
JCSTFT
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