Water body micro-nano oxygenating system

The invention discloses a water body micro-nano oxygenating system, which comprises a water pump, an oxygenating pump and a venturi tube. An outlet of the water pump is connected with a water inlet of the venturi tube, an outlet of the oxygenating pump is connected with an air inlet of the venturi tube, a water outlet of the venturi tube is connected with a multilevel vane pump, and all vanes of the multilevel vane pump are provided with a plurality of concave notches which are distributed at intervals along the edges of the vanes. The water body micro-nano oxygenating system has the advantages of being small in size, low in constructing cost, high in oxygenating efficiency and favorable for reducing energy consumption. 本发明公开了种水体微纳米增氧系统，包括水泵、增氧泵和文丘里管，水泵的出口与文丘里管的进水口相连，增氧泵的出口与文丘里管的进气口相连，文丘里管的出水口连接有多级叶片泵，多级叶片泵的各叶片设有若干沿叶片边缘间隔布置的凹入缺口。该水体微纳米增氧系统具有体积小巧、造价低、增氧效率高、利于降低能耗等优点。