渔业现代化2025，Vol.52Issue(5)：75-87,13.DOI:10.26958/j.cnki.1007-9580.2025.05.008
池塘工程化循环水养殖单管多路风送式投饲控制系统优化试验
Optimization and experiment of single-pipe multi-channel pneumatic feeding control system for in-pond raceway system(IPRS)
摘要
Abstract
To address the issues of low intelligence,high energy consumption,high feed breakage rate,and low feeding efficiency in pneumatic feeding systems for In-pond Raceway System(IPRS),this study optimizes a single-pipe multi-channel pneumatic feeding control system using a Computational Fluid Dynamics-Engineering Discrete Element Method(CFD-EDEM)coupling simulation approach.First,the IPRS and the single-pipe multi-channel pneumatic feeding system were analyzed to identify performance optimization requirements.Second,experiments were conducted to measure the physical parameters of commonly used expanded feed,and a discrete element model of the feed was developed.Subsequently,a physical model of the feeding pipeline and a computational fluid dynamics model were constructed to simulate the motion characteristics and distribution patterns of feed particles under varying airflow velocities,enabling the selection of an optimal intelligent control strategy for airflow-feeding coordination.Results indicated that airflow velocity significantly influenced feeding efficiency and pipeline blockage risks.Under experimental conditions,an optimal airflow velocity range of 30-40 m/s was identified.By implementing frequency conversion control of the fan(36-48 Hz),airflow-feeding coordination was optimized,and pressure feedback was used to achieve residual material purging and anti-blockage control in pipelines.Compared to traditional systems,the optimized system achieved 18.6％energy savings,39.44％reduction in feed breakage rate,and 43.48％improvement in feeding uniformity,thereby enhancing overall feeding efficiency.The CFD-EDEM method effectively simulated the operational conditions of the feeding system and provided optimization strategies.The proposed intelligent control strategy proposed in this study provides a theoretical reference for precise long-distance multi-point feeding,effectively enhancing the system's intelligence level and operational stability,while offering valuable insights for the research and development of intensive aquaculture equipment.关键词
池塘工程化循环水养殖系统/单管多路投饲系统/风送式/离散单元法/耦合仿真Key words
In-Pond Raceway System(IPRS)/single-pipe multi-channel feeding system/pneumatic/EDEM/coupling simulation分类
水产学引用本文复制引用
马晓飞,沈楠楠,贺艳辉,段金荣..池塘工程化循环水养殖单管多路风送式投饲控制系统优化试验[J].渔业现代化,2025,52(5):75-87,13.基金项目
中国水产科学研究院淡水渔业研究中心所级基本科研业务费项目(2023JBFM08) （2023JBFM08）
国家重点研发计划(2023YFD2400900) （2023YFD2400900）
