Space guide blade with guide surface separation plate

The invention discloses a space guide blade with a guide surface separation plate. The space guide blade comprises a guide surface separation plate, a guide blade, an outer shell, an inner shell, a mounting flange and a hub; the outer shell and the inner shell are connected through the guide blade; the guide surface separation plate is arranged on a revolving surface of a flowing line between theouter shell and the inner shell, and is connected with the guide blade; an inlet end of the guide surface separation plate extends forwards to the outlet intersection of an impeller; the mounting flange is arranged on the outer shell; and the hub is arranged in the inner shell. The guide surface separation plate is arranged in a guide blade runner; through coaction of the guide blade and the guidesurface separation plate, the internal flowing state of the guide blade is improved, the conditions of turbulent flow and secondary flow are reduced, the hydraulic loss of a water inlet runner is effectively reduced, the prob