Research on the three-body kelp harvesting ship based on floating raft aquaculture mode

IF 3.6 2区农林科学 Q2 AGRICULTURAL ENGINEERING

Aquacultural Engineering Pub Date : 2025-04-17 DOI:10.1016/j.aquaeng.2025.102545

Xian Wang , Yanan Wang , Zhengzhong Li , Hailong Che , Lanlan Zhu , Tongfei Sheng , Hua Zhou , Duanyang Geng

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引用次数: 0

Abstract

Floating raft is the most widely promoted kelp aquaculture mode in China. Under this mode, kelp production is high, but the ropes are complex and intertwined. The main method of kelp harvesting is manual. To reduce the labor intensity and improve the harvesting efficiency of kelp, this study designs a three-body kelp harvesting ship based on the floating raft aquaculture mode. This ship can lift, transport, collect, and transfer kelp in a single operation. Apart from the manual assistance required for the release and hanging the seedling rope, all other processes are mechanically automated. The diameter and lead of the rotary-screw propulsor blade were determined through Fluent simulation tests. To verify the actual harvesting effect of the three-body kelp harvesting ship, kelp harvesting performance tests were conducted. The results showed that the working speed and efficiency of mechanized harvesting were significantly higher than manual. The mechanical harvesting efficiency was 18.75 times that of manual, and the per capita harvesting efficiency was 9.33 times that of manual. The kelp loss rate of the harvesting ship was 3.25 %, slightly higher than that of manual. This study can provide a certain reference for the mechanized harvesting of kelp in large-scale aquaculture.

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基于浮筏养殖模式的三体海带收获船研究

浮筏养殖是目前国内推广最广泛的海带养殖方式。在这种模式下，海带产量很高，但绳索复杂且缠绕在一起。海带收获的主要方法是人工。为了降低海带的劳动强度，提高海带的收获效率，本研究设计了一种基于浮筏养殖模式的三体海带收获船。这艘船可以一次吊起、运输、收集和转移海带。除了释放和挂苗绳需要人工辅助外，其他所有过程都是机械自动化的。通过Fluent仿真试验，确定了螺杆螺旋桨叶片的直径和导程。为验证三体海带捕捞船的实际捕捞效果，进行了海带捕捞性能试验。结果表明，机械化采收的工作速度和效率显著高于人工采收。机械采收效率是人工的18.75倍，人均采收效率是人工的9.33倍。采收船的海带损失率为3.25 %，略高于人工。本研究可为大规模养殖中海带的机械化收获提供一定的参考。

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来源期刊

Aquacultural Engineering 农林科学-农业工程

CiteScore

8.60

自引率

10.00%

发文量

审稿时长

>24 weeks

期刊介绍： Aquacultural Engineering is concerned with the design and development of effective aquacultural systems for marine and freshwater facilities. The journal aims to apply the knowledge gained from basic research which potentially can be translated into commercial operations. Problems of scale-up and application of research data involve many parameters, both physical and biological, making it difficult to anticipate the interaction between the unit processes and the cultured animals. Aquacultural Engineering aims to develop this bioengineering interface for aquaculture and welcomes contributions in the following areas: – Engineering and design of aquaculture facilities – Engineering-based research studies – Construction experience and techniques – In-service experience, commissioning, operation – Materials selection and their uses – Quantification of biological data and constraints