THERMAL COMPRESSION COMPRESSOR Russian patent published in 2002 - IPC

FIELD: heat recovery loops of thermal plants. SUBSTANCE: during rotation of impeller, each inter-blade space containing precompressed air is communicated with high-pressure supply ports and high-pressure discharge ports where maximum pressure of cycle is maintained. Under action of centrifugal forces, compressed air is forced-out air preheated in heat exchanger. In the course of further rotation of rotor, pressure in said space is reduced due to removal of part of air to adjacent inter-blade spaces. When said space is connected to low-pressure discharge ports and low-pressure supply ports, blowing with fresh air is effected. During further motion of inter-blade space towards branch pipe, pressure rises in it stepwise due to supply of part of air from adjacent spaces. Then, space is communicated in succession with high-pressure supply port. Branch pipe and high-pressure discharge port; as a result, maximum pressure of cycle is set in space and part of cold compressed air is discharge to consumer and remaining part is expelled to heat exchanger where it is heated and expanded. Maximum pressure of cycle exceeds pressure of precompression at higher degree to lesser of air is discharge to consumer. EFFECT: enhanced efficiency due to use of cascade pressure exchange effect. 2 dwg