中国水产科学2017，Vol.24Issue(1)：190-198,9.DOI:10.3724/SP.J.1118.2017.15459
工厂化对虾养殖池管式射流集污水力特性
Experimental study on the hydraulic characteristics of waste concentrated in an industrial aquaculture pond equipped with a pipe jet flow system
摘要
Abstract
Seawater factory farming is an important fisheries industry in China and a moderh,high-density,intensive farming model that is receiving increasing attention as it develops.Factory farming uses circulating water culture,in which water treatment technology is key.Timely removal of waste (bait,feces) from aquaculture tanks is an important means to improve water quality.In this study,the characteristics of the flow field and waste distribution in the pool were studied in a square circle cutaway model tank (mainly used for shrimp aquaculture),in which water flow was driven by a side-tube hydraulic jet to optimally conserve water and provide a reference for engineering factory farming pools.The flow field distribution is the main factor that directly affects the waste concentration in a recirculating aquaculture tank.We investigated the effects of jet flow velocity and angle on the flow field distribution and waste concentration characteristics in the tank.The flow field characteristics were measured with a point-type flow meter and were analyzed using MATLAB software.The waste distribution characteristics were obtained using self-developed image analyzing software.The original waste distribution images were captured with a high resolution camera.The results showed that flow velocity varied in a V type trend along the sections and through the center of the tank.Waste gathered more rapidly and at a higher concentration as jet velocity was increased at a fixed jet flow angle.The optimal jet angle was 40° when jet flow velocity was fixed at 24 cm/s.These results will be useful to optimize and design a hydraulic drive system for industrial fish or shrimp aquaculture tanks.The results suggest a jet angle of 40° with as high as possible jet flow velocity to ensure optimal animal growth.关键词
工厂化养殖/管式射流/水力特性/集污效果Key words
industrial aquaculture/pipe jetting system/hydraulic characteristics/waste concentration effect分类
农业科技引用本文复制引用
赵乐,张清靖,许静,韩录维,桂福坤..工厂化对虾养殖池管式射流集污水力特性[J].中国水产科学,2017,24(1):190-198,9.基金项目
浙江省自然科学重点基金项目(Z16E090006) （Z16E090006）
国家自然科学基金项目(51239002) （51239002）
舟山市海洋专项(2015C41001). （2015C41001）
