摘要
为评价池塘养殖中主要机械增氧方式的性能优劣,该文通过增氧清水试验和水产养殖池塘中实地试验,研究了几种机械增氧方式在清水试验中的增氧能力,动力效率和实际池塘中的溶解氧变化。结果表明,在清水中,叶轮增氧机增氧能力分别高出水车和螺旋桨增氧机4%和264%,动力效率分别高出12.7%和259%;在池塘中,叶轮增氧机对池塘水层的混合均匀时间要比水车和螺旋桨增氧机快40%,对溶解氧的增加值分别高115%和293%。叶轮增氧机综合增氧性能要高于水车和螺旋桨增氧机,螺旋桨增氧机综合增氧性能最差。该研究为在池塘养殖中合理运用机械增氧方式提供了有益的借鉴。
In order to compare the performance indexes of the main mechanical aeration methods in pond culture,the aeration capacity in clean water test,the changes of dissolved oxygen in actual pond and the power efficiency for some kinds of mechanical aeration methods were studied through historical and current data of clean water oxygenation test and field experiments in ponds. The results indicated that the aeration capacity of impeller aerator was 4% and 264% higher than those of paddlewheel aerator and propeller aerator respectively; the power efficiency of impeller aerator was 12.7% and 259% higher than those of paddlewheel aerator and propeller aerator respectively in clean water; the time to achieve the water layer mixing uniformity for impeller aerator was 40% less than those for paddlewheel aerator and propeller aerator,and the increasing values of dissolved oxygen for impeller aerator was 115% and 293% higher than those for paddlewheel aerator and propeller aerator respectively in pond. The comprehensive aeration performance of impeller aerator is higher than that of paddlewheel aerator and propeller aerator,and the propeller aerator has the worst comprehensive aeration performance. The study can provide useful references for the rational application of mechanical aeration methods in pond culture.
出处
《农业工程学报》
EI
CAS
CSCD
北大核心
2011年第1期148-152,共5页
Transactions of the Chinese Society of Agricultural Engineering
基金
国家科技支撑计划项目(2006BAD03B06)
现代农业产业技术体系建设专项资金资助(nycytx-49)
农业部"引进国际先进农业科学技术"项目(2008-Z9)
关键词
池塘
供氧
机械性能
增氧性能
叶轮增氧机
水车增氧机
螺旋桨增氧机
pond
oxygen supply
mechanical properties
aeration performance
paddle aerator
waterwheel aerator
propeller aerator
