节能型拖网渔具作业性能研究
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- 英文论文题名：Study on Working Performance of Energy-saving Trawl Fishing Gear
- 论文作者：吴勇 ; 臧迎亮 ; 乐国义 ; 朱识科
- 英文论文作者：WU Yong ; ZANG Ying-liang ; LE Guo-yi ; Zhoushan Leda Special Fishing Tackle Co Ltd ; Fishery School of Zhejiang Ocean University ; Key Laboratory of Marine Fishery Equipment and Technology of Zhejiang
- 年：2016
- 作者机构：舟山市乐达特种渔具有限公司;浙江海洋学院水产学院;浙江省海洋渔业装备技术研究重点实验室;
- 论文关键词：节能型拖网 ; 水动力 ; 渔具性能
- 英文论文关键词：Energy-saving trawl ; Hydrodynamic force ; Performance of fishing gear
- 会议召开时间：2016-11-02
- 会议录名称：2016年中国水产学会学术年会论文摘要集
- 语种：中文
- 分类号：S972.13
- 学会代码：OGSB
- 会议名称：2016年中国水产学会学术年会
- 会议地点：中国四川成都
- 主办单位：中国水产学会、四川省水产学会
- 学会名称：中国水产学会
- 页数：1
- 文件大小：504k
- 原文格式：D
- 会议级别：全国
摘要
拖网渔业作为东海区主要的捕捞作业方式,对浙江目前大多数拖网渔船正在使用的大网目单船底拖网进行网具优化试验,设计了调整长周比、上下纲长度比、网身全长比的三因子正交试验,选出较好的配合型式(验证网)进行水槽对比试验。结果表明,在其它条件不变的前提下,在2.5~3.5 kn拖速下,验证网的能耗系数相对最小、扫海面积最大、网口垂直扩张高度优势明显。采用高强度聚乙烯网线的拖网和普通聚乙烯网线的拖网相比较,网线材料方面可以节约34%左右,产值方面提高35%左右,从投入产出来看,节能效果明显。
Trawl fisheries as the main way of fishing in the East China Sea, An optimization analysis test was carried out, based on a trawl currently in use for the large single mesh bottom trawling, The length/perimeter ratio, and headline length/leadline length ratio and net body/overall length ratio were chosen as factors in an orthogonal array test. Select a good cooperate type(verification net) to carry out a comparative test in the flume. With the dimensions and shapes of the trawls un-changed, the experimental results show that verification net's energy consumption coefficient is relatively the smallest, sweep the sea area is the largest, vertical expansion of the net mouth height advantage is obvious. Comparison of the high strength polyethylene net and the common polyethylene net, material aspects of the network cable can save about 34%, Output increase by about 35%, from the point of input and output, energy saving effect is obvious.
Trawl fisheries as the main way of fishing in the East China Sea, An optimization analysis test was carried out, based on a trawl currently in use for the large single mesh bottom trawling, The length/perimeter ratio, and headline length/leadline length ratio and net body/overall length ratio were chosen as factors in an orthogonal array test. Select a good cooperate type(verification net) to carry out a comparative test in the flume. With the dimensions and shapes of the trawls un-changed, the experimental results show that verification net's energy consumption coefficient is relatively the smallest, sweep the sea area is the largest, vertical expansion of the net mouth height advantage is obvious. Comparison of the high strength polyethylene net and the common polyethylene net, material aspects of the network cable can save about 34%, Output increase by about 35%, from the point of input and output, energy saving effect is obvious.
引文