渔业现代化2025，Vol.52Issue(2)：29-36,8.DOI:10.3969/j.issn.1007-9580.2025.02.004
养殖工船离心式吸鱼泵内部流场仿真与试验
Simulation and experiment of the internal flow field of the centrifugal fish suction pump on aquaculture ship
摘要
Abstract
Compared with the open space of the aquaculture cage,the space of the aquaculture ship is closed and narrow,which is difficult to accommodate the huge suction pump operation equipment.At present,the centrifugal suction pump has the advantages of compact structure,flexible installation and not out of water during the whole fishing process compared with the vacuum type and jet flow,which is especially suitable for the aquaculture ship.To address the challenge of minimizing fish damage and enhancing the efficiency of fish collection in aquaculture ship,a low-damage fish suction pump with import and outlet diameter of 200 mm has been developed.The computational fluid dynamics-discrete element method(CFD-DEM)is used to analyze the flow field characteristics of the impeller and optimize the performance of the suction pump.Flow line distribution is uniform,no fish body extrusion and blockage;at the same time,the pressure distribution in the pump channel is uniform,and it will not cause too much damage to the fish.The fish suction pump test,at the outlet end with a net bag to separate the fish water,the results show that only a small number of fish has slight scratches,suspected to be scratched by a mesh bag during the separation,and no trace of impeller scratches,meet the non-destructive live fish transport requirements.The results show demonstratesthat the fish suction pumps can be adapted to accommodate various fish species by adjusting the pump's import diameter and rotational speed.This customization minimizes fish injury,reduces the physical labor intensity required,and enhances both the efficiency of fish harvesting and the survival rate of the caught fish.关键词
养殖工船/离心式吸鱼泵/CFD数值模拟/流场特性/试验验证Key words
aquaculture ships/centrifugal fish suction pump/CFD numerical simulation/flow field characteristic/experimental verification分类
农业科技引用本文复制引用
陈卿,李德堂,谢永和,高炜鹏,王君,张佳奇,刘平,洪永强..养殖工船离心式吸鱼泵内部流场仿真与试验[J].渔业现代化,2025,52(2):29-36,8.基金项目
浙江省"尖兵""领雁"研发攻关计划海洋智能装备关键技术、装备及示范"深远海集约化养殖配套智能装备研发与示范应用(2022C03023)" （2022C03023）
