2results about How to "Increase speed difference" patented technology

The microstructural centrifugal pump blade comprises a blade body, a mushroom-shaped pit array is distributed on the front edge of the suction surface of the blade body, a sharkskin placoid scale-shaped protrusion array is distributed on the tail edge of the pressure surface of the blade body, and preferably, the mushroom-shaped pit array and the sharkskin placoid scale-shaped protrusion array are distributed on the front edge of the suction surface of the blade body. The sharkskin placoid scale-shaped bulge array is positioned at the 1 / 3 part of the tail part of the pressure surface; the sharkskin placoid scale-shaped protrusion array microstructures are arranged on the tail edges of the blades, so that the blades can effectively optimize the flow characteristic of the surface of the impeller, the mushroom-shaped pit array microstructures are arranged on the front edges of the blades, the speed difference at an inlet of the impeller can be increased, and the two microstructures are compounded to improve the overall performance of the centrifugal pump; and particularly, the performance is obviously improved under the working condition of medium and high flow.

The utility model provides a kind of high purity graphite cyclone separation device of conical aggregate port belongs to separation device technical field, the high purity graphite cyclone separation device of this conical aggregate port includes cyclone separation cylinder, the air inlet pipe of being set in cyclone separation cylinder top, the exhaust pipe of being set in cyclone separation cylinder side surface and the conical aggregate port at cyclone separation cylinder bottom;The inner wall of the conical aggregate port is corrugated structure, the corrugated structure extends from the top of conical aggregate port to bottom, the air inlet pipe is communicated with cyclone separation cylinder interior, exhaust pipe is communicated with cyclone separation cylinder interior and position higher than conical aggregate port, the conical aggregate port bottom is equipped with discharge gate, the cyclone separation cylinder is cylindrical, air inlet pipe is obliquely inserted cyclone separation cylinder top, the center line of air inlet pipe and the center line of cyclone separation cylinder are set with acute angle, solve the technical problem that graphite particle is easily bounced and not completely separated due to the smooth inner wall of traditional conical aggregate port.