2results about How to "Improve negative pressure effect" patented technology

The wind wheel structure comprises a cylinder, the flow guide cone, a main blade and a stabilizing ring, the flow guide cone is a thin-shell rotary body with the equal wall thickness, and the thin-shell rotary body is formed by rotating an outer contour line around the axis of the cylinder by a circle, and the outer contour line is formed by sequentially and smoothly connecting a first arc section, a second arc section, a straight line section and a third arc section; the outer contour line is gradually away from the axis of the cylinder from the starting end of the first arc section to the end point of the third arc section; the starting end of the first arc section intersects with the inner wall of the thin-shell rotary body forming the flow guide cone and the surface of the column body; a plurality of main blades are uniformly distributed on the circumference of the large end of the flow guide cone and extend towards the column body; the main blades are longitudinally parallel to the axis of the diversion cone; the first arc section is used for forming a gas inlet area with a flaring, and the second arc section forms a gas compression area for increasing the gas flow rate; the linear section and the third arc section form a gas flow guide area; the stabilizing ring is of an annular structure and is formed on the throwing-out side of the main blade in a sleeving mode, and the stabilizing ring is located at the end close to the column body in the axial direction.

The invention relates to the technical field of sewage treatment, and discloses a jet device for sewage treatment, the jet device comprises a jet device body, a water inlet pipe, a water outlet and an air inlet pipe, a suction chamber is arranged at the left end in the jet device body, and the right end of the suction chamber is connected with a throat pipe; the water outlet is connected to the right end of the throat pipe in a flaring mode, a water outlet flange plate is fixedly arranged at the outer end of the water outlet, and the air inlet pipe is fixedly arranged at the upper end of the side of the jet device body. The water inlet pipe is installed at the left end of the jet device body, a necking-down nozzle is arranged at the right end of the water inlet pipe and stretches into the position, opposite to the throat pipe, inside the suction chamber, and a liquid inlet flange plate is fixedly arranged at the outer end of the water inlet pipe. According to the jet device, sewage and gas are efficiently mixed in the jet device, the mixed sewage can be sprayed out at high pressure through the throat pipe and the flared water outlet, and higher treatment efficiency and effluent quality are shown in the sewage treatment process.