Energy-saving device in front of propeller and ship comprising same

The invention discloses an energy-saving device in front of a propeller and a ship comprising the energy-saving device in front of the propeller, the energy-saving device in front of the propeller is arranged between the tail of a ship body and a propeller, the energy-saving device in front of the propeller comprises a flow guide blade and a flying wing, the flow guide blade comprises a guide pipe and a flow guide wing which are connected, and the flow guide blade is connected with the tail of the ship body; the guide pipe extends in the length direction of the ship body, the axial section of the guide pipe is in an arc shape, and the central axis of the guide pipe is between the guide pipe and the central axis of the propeller. The flow guide wings and the flying wings extend in the radial direction of the propeller and are arranged at intervals; the flying wings are arranged on the two sides of the flow guide blades and connected with the tail of the ship body. And the projections of the flying wings and th