文丘里曝气器布置对循环水体增氧效率的影响

doi:10.3969/j.issn.1000-565X.2015.03.018

华南理工大学学报（自然科学版） ›› 2015, Vol. 43 ›› Issue (3): 121-129.doi: 10.3969/j.issn.1000-565X.2015.03.018

文丘里曝气器布置对循环水体增氧效率的影响

程香菊¹ 邝韵琪¹ 林雯昕¹ 谢骏² 许挺达¹

1．华南理工大学土木与交通学院，广东广州 510640; 2．中国水产科学研究院珠江水产研究所，广东广州 510380

收稿日期:2014-05-06 修回日期:2014-10-30 出版日期:2015-03-25 发布日期:2015-02-10
通信作者: 程香菊(1974-)，女，博士，教授，主要从事湖泊、水库、河流、河口、水产养殖池塘等的水力与水环境相关研究． E-mail:chengxiangju@scut.edu.cn
作者简介:程香菊(1974-)，女，博士，教授，主要从事湖泊、水库、河流、河口、水产养殖池塘等的水力与水环境相关研究．
基金资助:
现代农业产业技术体系建设专项(nycytx-49-13);清华大学水沙科学与水利水电工程国家重点实验室开放研究基金资助项目(sklhse-2013-B-02);国家自然科学基金资助项目(50979118);华南理工大学中央高校基本科研业务费专项资金资助项目(2013ZZ0027)

Effects of Arrangement of Venturi Aerators on Aeration in Re-Circulating Water

Cheng Xiang-ju¹ Kuang Yun-qi¹ Lin Wen-xin¹ Xie Jun² Xu Ting-da¹

1． School of Civil Engineering and Transportation，South China University of Technology，Guangzhou 510640,Guangdong，China;2． Pearl Ｒiver Fisheries Ｒesearch Institute，Chinese Academy of Fishery Sciences，Guangzhou 510380,Guangdong，China

Received:2014-05-06 Revised:2014-10-30 Online:2015-03-25 Published:2015-02-10
Contact: 程香菊(1974-)，女，博士，教授，主要从事湖泊、水库、河流、河口、水产养殖池塘等的水力与水环境相关研究． E-mail:chengxiangju@scut.edu.cn
About author:程香菊(1974-)，女，博士，教授，主要从事湖泊、水库、河流、河口、水产养殖池塘等的水力与水环境相关研究．
Supported by:
Supported by the Earmarked Fund for Modern Agro-Industry Technology Ｒesearch System(nycytx-49-13)，the Open Research Fund Program of State Key Laboratory of Hydroscience and Engineering(sklhse-2013-B-02)and the National Natural
Science Foundation of China(NSFC)(50979118)

摘要/Abstract

摘要： 为实现封闭循环水养殖系统中溶解氧的动态平衡，运用“对冲流动”理念与文丘里曝气器的自吸气增氧原理，设定 15 种工况，探究文丘里曝气器的对冲方式对水体增氧的影响．结果表明:氧体积传质系数与循环水体流量成正比;在同一流量条件下，氧体积传质系数与文丘里曝气器淹没深度成反比．结合增氧效果与对冲循环流场特性，建议在养殖初期与后期将文丘里曝气器安装为 A—B 层错层对冲，而在养殖中期调整为 A—C 层错层对冲．

关键词: 文丘里曝气器, 循环水养殖系统, 增氧, 对冲流动

Abstract: In order to achieve dynamic balance in a re-circulating aquaculture system (ＲAS)，the idea of“oppo-sing flow”and the principle of Venturi air entrainment were adopted，and 15 experimental conditions were deter-mined to investigate the effect of opposing flow on the aeration in water with different Venturi settings． The results show that the volumetric mass transfer coefficient of oxygen is proportional to water flow rate，but is inversely pro-portional to Venturi setting depth at the same flow rate． By comprehensively considering the aeration effect and the re-circulating opposing flow characteristics，it is suggested that Venturi aerator should be set as A—B stagger layer at the beginning and the end of cultivation，while it should be switched to A—C stagger layer in the mid-term culti-vation．

Key words: Venturi aerator, re-circulating aquaculture system, aeration, opposing flow

程香菊邝韵琪林雯昕谢骏许挺达. 文丘里曝气器布置对循环水体增氧效率的影响[J]. 华南理工大学学报（自然科学版）, 2015, 43(3): 121-129.

Cheng Xiang-ju Kuang Yun-qi Lin Wen-xin Xie Jun Xu Ting-da. Effects of Arrangement of Venturi Aerators on Aeration in Re-Circulating Water[J]. Journal of South China University of Technology (Natural Science Edition), 2015, 43(3): 121-129.

文丘里曝气器布置对循环水体增氧效率的影响

Effects of Arrangement of Venturi Aerators on Aeration in Re-Circulating Water

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