Radial flow type turbo expander structure
A turboexpander and radial flow technology, applied in the field of turbines, can solve the problems of sharp changes in blade height, high rotation speed, and long blade, and achieve the effects of low rotation speed, small blade height changes, and high reliability.
Active Publication Date: 2020-12-18
NO 711 RES INST CHINA SHIPPING HEAVY IND GRP
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A radial flow type turbo expander structure comprises an air intake pipe, a static wheel disc, a flow guide cone, an impeller, a rotating shaft, a movable impeller cover and an exhaust flow guide ring. The air intake pipe is connected with the back face of the static wheel disc, a plurality of static blades arranged at intervals in the circumferential direction are arranged on the front face of the static wheel disc and surround a center through hole of the static wheel disc, and a nozzle is formed by a gap between every two adjacent static blades. The bottom of the flow guide cone is connected with the tops of the multiple static blades; the impeller sleeves outside the rotating shaft and is connected with the rotating shaft; a plurality of moving blades arranged at intervals in the circumferential direction are arranged on the front surface of the impeller; and the movable impeller cover is annular, and the bottom face of the movable impeller cover is connected with the tops of the multiple movable blades. The multiple moving blades surround the multiple nozzles; and the exhaust flow guide ring is arranged around the impeller and is opposite to the static wheel disc, and an annular gap between the exhaust flow guide ring and the static wheel disc forms an exhaust channel. When the radial flow type turbo expander structure works, the flow direction of internal working medium gas is centrifugal runoff, and the radial flow type turbo expander structure is efficient, reliable and compact in structure.
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