鱼缸自动增氧系统 超声波增氧系统研究进展 论文综述.doc

超声波增氧系统研究进展 摘要：氧是鱼类赖以生存和生长发育的必备条件之一，水中含氧量主要与自然温度、湿度以及鱼体的密度有关。如今家用鱼缸在日常生活中越来越普及，但由于鱼缸体积小，水内溶氧量较小，特别是在炎热的夏天，溶氧量的减少会使鱼上浮水面吸氧，鱼体能消耗大，长期后还可能导致鱼的生病及死亡。超声波增氧系统对鱼类养殖有着积极意义，但目前仅发现少数国家将超声波用于渔业上。超声波增氧原理是利用超声波的空化现象，将雾状的气泡喷入水中，使其有更长的时间与水充分混和,从而达到增氧目的。该系统是由超声波传感器构成的鱼缸自动增氧控制系统，该系统可根据鱼儿的活动情况，自动检测鱼缸水中是否缺氧，从而开启/停止增氧装置，以使鱼缸水中的氧浓度保持在最佳状态。 关键词：超声波；自动增氧；鱼类养殖；溶氧量 The fish bowl increases the oxygen system design automatically Abstract：Oxygen is one of the necessary conditions for fish survival and growth.The oxygen content in water is main of natural temperature, humidity and the density of the larvae concerned.Now household aquarium in daily life increasingly popular, but because of the small volume of the aquarium and the small dissolved oxygen in water, especially in hot summer,oxygen reduction will make fish up-floating surface oxygen,then fish can increase the consumption of oxygen and food,it will lead to fish death at last.The ultrasonic add oxygen system for fish breeding has positive significance,but currently only found a few countries on ultrasound for fishery.Ultrasonic add oxygen principle is to use ultrasonic cavitation phenomenon,make fog shape bubbles spray into the water,then make it a longer time for water fully mixing,so as to achieve the goal that add oxygen.This is composed of by ultrasonic sensors increasing oxygen tank automatic control system,The system can according to the activities of fish to automatic detection the oxygen content in water,thus open/stop increasing oxygen device and make the concentration of oxygen tank water remain in the best state all the time. Keywords： ultrasonic, automatic increasing oxygen,fish breeding,dissolved oxygen 引言 随着生活质量的不断提高，家养观赏鱼类已经逐渐进入我们的生活。观赏鱼形态美观灵动，但对外界环境适应能力差，生命力脆弱，因此护养较为困难。在养殖过程中，溶解氧是养殖中最重要的水质指标。鱼类的呼吸依赖于水中的溶解氧，如果溶氧量过低鱼将无法适应。据调查，主要养殖鱼类正常生长发育所需要的溶氧量一般在4～5毫克/升以上，此时鱼类摄食好，生长快，饵料利用率高；当溶氧低于此值时，鱼类的摄食与生长将受到一定影响；当溶氧低于2毫克/升左右时，鱼类基本停止摄食；当溶氧降至1毫克/升左右时就会浮头；当溶氧进一步降至0.5毫克/升时即可窒息死亡；如果溶氧偏高一般对鱼类没有什么危害，但深度过饱和氧有时会引起气泡病。 由上文可知，水中溶氧量是保证鱼类生存和繁殖的重要