刘兴国，王鹏祥，苗 雷
（十大网投正规信誉官网，农业部渔业装备与工程重点开放实验室，上海 200092）
摘要：为解决池塘高密度养殖存在的缺氧风险问题，设计了池塘溶氧调控系统。根据池塘夜间需氧模型，确定鲤科混养鱼类池塘溶氧安全浓度在3 mg/L以上，增氧时间高于6.2 h/（m2?W?d），增氧时滞为0.2~1 h。池塘溶氧调控系统由水质在线监测系统、数据信息处理系统、电路控制系统和增氧设备组成，系统对水体溶氧的分辨率为±0.2%，可以有效调控池塘溶氧设备。试验运行发现，池塘溶氧调控系统比传统增氧方式约可节省运行时间33.4%，试验池塘的饲料系数降低了21.6%。系统具有良好的节能、增效效果。
关键词：池塘溶氧；实时监测；反馈调控
A sort of DO control system design and application in pond culture
LIU Xing-guo, WANG Peng-xiang, MIAO Lei
( Fishery machinary and instrument research institute, Chinese academy of fishery sciences,
Key Laboratory of Fishery Equipment and Engineering, the Ministry of Agriculture, Shanghai 200092, China )
Abstracts: In order to reduce the ponds culture oxygen lack risk, This paper introduce a dissolve oxygen (DO) control system design. By studies the nights pond aquaculture water DO variety, definite the carps mix pond culture water DO must above 3mg/l, aeration times above 6.2h/m2?w?d, The aeration times lag is 0.5～1h. The ponds culture dissolve oxygen control system compose by water quality measure system, datum disposal system, electro-circuit system and aeration machines. The system dissolve oxygen distinguish ratio is ±0.2% it can availability control the aeration machines. Compare the traditional aeration manner the dissolve oxygen control system could save about 33.4% operation times, and the experiment culture FCR was reduced 21.6%. The system can save culture energy used and increase ponds aquaculture effection.
Key words: Pond water dissolve oxygen; Real time measure; Feed back control
基金项目：“十一五”国家支撑计划“池塘优质高效养殖技术研究与示范”（2006BAD03B0101）；中国水产科学研究院渔业水体净化与系统装置重点实验室基金“循环水健康养殖系统中鱼（虾）、贝、水植的营养转化和水质调节研究”（2006-01）；上海市科技兴农推广项目“池塘健康养殖水处理（湿地）技术研究与推广”（2007-3-2）
作者简介：刘兴国（1965—），男，研究员，主要从事养殖生态工程研究。E-mail: liuxg4890@sohu.com
（来源：《渔业现代化》 2008，35（5），18-20）
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