首页 | 本学科首页   官方微博 | 高级检索  
     检索      

移动式太阳能增氧机的增氧性能评价
引用本文:吴宗凡,程果锋,王贤瑞,刘兴国,张拥军,邹海生,唐荣.移动式太阳能增氧机的增氧性能评价[J].农业工程学报,2014,30(23):246-252.
作者姓名:吴宗凡  程果锋  王贤瑞  刘兴国  张拥军  邹海生  唐荣
作者单位:1. 中国水产科学研究院渔业机械仪器研究所,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 2000922. 农业部渔业装备与工程重点试验室,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 200092,1. 中国水产科学研究院渔业机械仪器研究所,上海 200092
基金项目:十二五国家科技支撑项目"淡水养殖池塘生态工程化调控技术研究"(2012BAD25B01);公益性行业(农业)科研专项"淡水池塘工程化改造与环境修复技术研究与示范"(201203083)
摘    要:为改善池塘养殖环境,设计了一种移动式太阳能增氧机,由光伏供电装置和水面行走装置搭载涌浪机而成,能在水面沿钢丝绳移动并利用涌浪机的波浪增氧和水层交换作用,大范围扰动水体并为池塘增氧。该研究的目的是通过机械增氧效率检测、提水能力测定和池塘增氧能力测定3个试验,评估太阳能增氧机的机械增氧性能、水层交换性能和实际应用效果,以期全面了解移动增氧机增氧能力。结果表明,该移动式太阳能增氧机最大机械增氧能力为1.24 kg/h,动力效率2.59 kg/(k W·h);最大提水能力1 254.4 m3/h,提水动力效率2 613.3 m3/(k W·h);并在晴好天气白天(09:00—19:00),在对照组底层溶氧为3.1~3.8 mg/L时,大幅度提升池塘底层溶氧水平,最高时达7.8 mg/L,维持池塘上下溶氧均匀度72%~84%,极大改善了底层溶氧环境。数据表明移动式太阳能增氧机具有良好的机械增氧和水层交换性能,因而能有效改善池塘底层溶氧环境,提高上下水体溶氧均匀度。该研究结果可为太阳能增氧机的进一步推广应用提供数据支撑。

关 键 词:太阳能  溶解氧  水产养殖  机械增氧  池塘  水面行走装置  涌浪机
收稿时间:2014/5/26 0:00:00
修稿时间:2014/11/15 0:00:00

Evaluation on aeration performance of movable solar aerator
Wu Zongfan,Cheng Guofeng,Wang Xianrui,Liu Xingguo,Zhang Yongjun,Zou Haisheng and Tang Rong.Evaluation on aeration performance of movable solar aerator[J].Transactions of the Chinese Society of Agricultural Engineering,2014,30(23):246-252.
Authors:Wu Zongfan  Cheng Guofeng  Wang Xianrui  Liu Xingguo  Zhang Yongjun  Zou Haisheng and Tang Rong
Institution:1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China,1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China,1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China,1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China2. Key Laboratory of Fishery Equipment and Engineering, Ministry of Agriculture, Shanghai 200092, China,1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China,1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China and 1. Fishery Machinery and Instrument Research Institute, Chinese Academy of Fishery Sciences, Shanghai 200092, China
Abstract:Abstract: In pond aquaculture, it is usually necessary in sunny noon that running aerator stirs pond water, so that the supersaturated dissolved oxygen (DO) from phytoplankton's photosynthesis in upper water can be transferred into the relatively anoxic bottom, reducing the "oxygen debt" of bottom water and preventing fish hypoxia at the next early morning. However, this approach consumes a lot of electric energy and has low efficiency. To improve the ecological state of aquaculture ponds and save electric energy, a movable solar aerator was designed and developed. This machine is solar-powered and can move upon the water, and mainly consists of a photovoltaic power system, a water walking device, and a wave aerator. The photovoltaic power system provides power for the entire machine, while the water walking device drives the whole equipment, moving back and forth along a steel rope. The wave aerator can rotate itself and around the main part of the equipment (the photovoltaic power system and water walking device), affecting large areas of the pond. The rotation of the wave aerator makes the formation of water waves and promotes pond water convection between the surface and the bottom. The purpose of this study was to evaluate the performance of the movable solar aerator on mechanical aeration and water exchange between the surface and the bottom, and also on its practical effect in ponds, by 3 tests of aeration efficiency, water pumping capacity, and aeration effect in ponds, respectively. For standardizing the test, a battery providing the same voltage (24 V) was used instead of the photovoltaic power system in the tests of mechanical aeration efficiency and water pumping capacity. The values of performance obtained from this method of using a battery are the maximum values for the equipment. The obtained results showed that the machine increased the DO in the water of a pool (54.8 m3) from 0.84 to 7.88 mg/L within 36 minutes. The maximum mechanical aeration capacity was 1.24 kg/h, with a power efficiency of 2.59 kg/(kW·h), maximum pumping water capacity of 1 254.4 m3/h, and pumping dynamic efficiency of 2613.3 m3/(kW·h). The test of practical application effect in ponds was conducted from 07:00 a.m. on September 12, 2013 to 05:00 a.m. on September 13, 2013 at the pond ecological engineering research center of Chinese academy of fishery sciences (Shanghai), with the maximum sunlight intensity of 57 200 lx. The pond selected was 70 m in length and 25 m in width, with a depth of 1.6 m. The aerator ran automatically from 07:00 to 16:00, with a total running time of 9 hours. The DO concentrations of 0.2, 0.5, 1.0 and 1.5 m pond water were recorded with an interval of 2 hours. The results showed that the DO values of the bottom water (1.5 m) in control were maintained at 3.1-3.8 mg/L, whereas the values in the test pond were substantially increased with the maximum of 7.8 mg/L, due to the good performance of the movable solar aerator on mechanical aeration and water exchange. The DO uniformity of the test pond was maintained at 72%-84%. The DO environment in the bottom pond was improved greatly. These results revealed that the movable solar aerator has good performance on mechanical aeration and water exchange, thus, effectively improving the DO level in the bottom water of ponds and increasing DO uniformity. The present study provides a data basis for further popularization and application of the movable solar aerator developed newly.
Keywords:solar energy  dissolved oxygen  aquaculture  mechanical aeration  pond  water walking device  wave aerator
本文献已被 CNKI 等数据库收录!
点击此处可从《农业工程学报》浏览原始摘要信息
点击此处可从《农业工程学报》下载免费的PDF全文
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号