Impeller cavity of blockage prevention multi-steam heat energy meter

The utility model relates to an impeller cavity of a blockage prevention multi-steam heat energy meter. The main structure of the impeller cavity is that: (1) the upper surface of the interior of the upper cover of the impeller cavity is designed into a flat cylinder formed by connecting a plurality of reinforcing ribs, wherein the reinforcing robs are higher than the flat cylinder, and an impeller spindle sleeve is arranged in the center of the cylinder; (2) the base of the impeller cavity is integrally designed into a circular tray supported by a ring, wherein an impeller spindle is arranged in the center of the tray, water outlets of the impeller cavity are arranged around the spindle, and the top end at the outer edge of the tray and the water outlet ends of the impeller cavity at the bottom of the tray are designed into smooth curved surfaces that do not block the outflow of impurity; the upper cover and the base of the impeller cavity are jointed with each other into a cavity, and an impeller is arrange