养殖水体增氧技术及方法探讨

Study on a Method of Increasing Oxygen for Aquaculture Waters

水体是鱼类生活的环境,水中的溶解氧是鱼类赖以生存的最基本的必要条件之一。在鱼、虾高密度养殖中,水中溶解氧的多少决定着水体容纳生物的密度,因此增氧显得尤为重要。对现有各类增氧机的初步分析得出,现有的增氧机装置存在某种缺点:增氧的速度和效率不高,生产中需要配置庞大的设备,消耗大量的能源;而且由于增氧速度慢,导致诸如水产养殖业中鱼类缺氧需要快速救治时无法及时反应而影响生产,甚至鱼类窒息死亡的事故。通过对超声波及超声发生装置的研究,利用其空化效应能达到增氧的效果,结合所设计的简易超声波发生装置,从理论和实验上得出该装置能产生预期的超声波。

Fish lives in water,but the dissolved oxygen in the water is one of the most basic essential conditions where fish could live,increasing the oxyg en is deemed to be particularly important in high density aquacultures.After ana lyzing lots of aerators,the flaws of the aerators was indicated:such as low the increasing speed and low efficiency,and if installing a big equipment,consuming large energy to attain the results.The slow speed of increasing oxygen caused tr oubles such as deficient oxygen when the fish needed to be quickly cured and res ponded. The ultrasonic and its generator be researched,it can increase the quant ity of oxygen by using the cavitations of ultrasonic.The device can make the nee ded ultrasonic by theories and experiments.