近年来人们对水产品的需求越来越高,如河蟹、青虾、南美白对虾等高附加值水产品的养殖面积不断扩大,这些水产品一般生活在水体底层,对水体底层溶氧要求较高;同时普通水产品的养殖密度也在不断增加,对水体质量、池塘溶氧量特别是池塘底部的溶氧量都有更高的要求。传统表层增氧技术(如叶轮式、水车式增氧机具)虽然对表层增氧效 In recent years, people’s demand for aquatic products is getting higher and higher, such as crab, freshwater shrimp, white shrimp and other high value-added aquaculture aquaculture area continues to grow, these aquatic products generally live in the bottom of the water, High; at the same time ordinary aquaculture breeding density is also increasing, the water quality, pond dissolved oxygen, especially the pond bottom of the dissolved oxygen have higher requirements. Traditional surface aeration technology (such as impeller, waterwheel aerator) Although the surface aeration