陈有光¹，段登选¹，陈秀丽¹，巩俊霞¹，王  妹²
（1 山东省淡水水产研究所 济南 250117；2 上海海洋大学，上海 201306）

摘要：控制养殖水体溶氧是工厂化养鱼水处理主要技术之一。介绍一种工厂化养鱼氧气锥的结构、原理及增氧效果。为了掌握氧气锥增氧规律，对氧气锥进行了氧气流量单因素等差梯度试验。结果表明，在循环水流量为65 m3/h，水温24.5 ℃，氧气流量为0，1，2……10 L/min的条件下，溶氧与氧气流量回归方程为y =0.100 9x2＋0.059 4x＋5.958 8（r =0.992 7）；根据物料平衡原理，推算出氧气锥的最大氧气利用率为84.56%；在最大氧气利用率的条件下，依照尼罗罗非鱼的耗氧率计算模式，推算出工厂化养鱼系统需配置氧气锥的台数。

关键词：工厂化养鱼，氧气锥，氧气利用率，呼吸耗氧率

Study on the oxygen increasing law of oxygen cone
in industrialized fish farming system
Chen You-guang¹, Duan Deng-xuan¹, Chen xiu-li¹, Gong Jun-xia¹, Wang mei²
( 1 Fresh Water Fisheries Research Institute of Shandong Province, Jinan 250117, China;
2 Shanghai Ocean University2 Shanghai 201306, China )

Abstract: The control of dissolved oxygen is one of the main technologies in industrialized fish farming system. In this research, the structure of oxygen cone, principle and oxygen increasing effect was introduced. In order to grasp the oxygen increasing law of oxygen cone, the experiment of oxygen flow single factor arithmetic gradient oxygen-increasing effect was carried out in industrialized fish farming system. The test results showed that when the cycle water flow was 65m3/h and the oxygen flow was 1, 2 ……10L/min, the relationship between the dissolved oxygen and oxygen flow in the water was y = 0.100 9x2 +0.059 4 x +5.958 8 (r = 0.992 7). According to the mass balance principle, the maximum oxygen utilization rate of oxygen cone was calculated at 84.56%. Under the condition of the maximum oxygen utilization rate of oxygen cone, according to the rate of Nile tilapia oxygen consumption, the number of oxygen cone was projected in industrialized fish farming system. It provided the basis for oxygen supply system design in industrialized fish farming system.

Key words: industrialized fish farming system; oxygen cone; pure oxygen; dissolved oxygen; oxygen utilization efficiency; respiratory oxygen consumption rate

基金项目：山东省科技攻关计划项目（2004GG2209134）；山东省农业重大应用技术创新项目（20080001）

作者简介：陈有光（1961—），男，研究员，从事水产养殖与设施渔业专业研究。E-mail: chenyouguang2000@yahoo.com.cn

                                           （《渔业现代化》 2009，36（3），26-30）