TOWER-TYPE CONCENTRATION SOLAR POWER PLANT WITH PNEUMATIC ACCUMULATION CIRCUIT Russian patent published in 2025 - IPC F03G6/06 

FIELD: electric power generation.

SUBSTANCE: invention relates to power generation system, namely to renewable energy sources, specifically to tower-type concentration solar power plants (CSPP), realizing a thermodynamic cycle, for example, Rankine, Brayton and others, combined with an energy accumulation system. CSPP comprises heliostats, a solar radiation concentrator arranged on the top of the tower, a high-temperature heat accumulation circuit, a thermodynamic cycle circuit, a pneumatic accumulation circuit. High-temperature heat accumulation circuit contains storage of hot and cold high-potential heat carriers, and between the storages there is at least one heat exchanger for heat transfer to the thermodynamic cycle circuit and at least one heat exchanger for the high-potential heat transfer to the pneumatic accumulation circuit. Circuit of thermodynamic cycle includes blade turbomachine, heat exchanger, which removes energy from working medium, at least one flow-through machine to increase pressure of working medium, at least one regenerative heater of working medium. At least one heat exchanger for heat transfer to the circuit of the thermodynamic cycle is interconnected with the blade turbomachine and the last regenerative heater of the working medium in the direction of movement of the working medium. Pneumatic accumulation circuit contains series-connected compressors and low-temperature heat exchangers for air cooling, a device for removing water from the air, an air storage, an air flow control device, at least one air bladed turbomachine. At least one heat exchanger for transfer of high-potential heat to pneumatic accumulation circuit is interconnected with at least one air bladed turbomachine. Blade turbomachine is connected to electric generator of bladed turbomachine and at least one air bladed turbomachine is connected to electric generator of air bladed turbomachine. CSPP contains low-temperature heat accumulation circuit, including storage of hot and cold low-potential heat carriers, wherein the storages are communicated with at least one low-temperature heat exchanger for air cooling of the pneumatic accumulation circuit, and between storages there is at least one heat exchanger for transfer of low-potential heat to pneumatic accumulation circuit, which is interconnected with at least one heat exchanger for transfer of high-potential heat to pneumatic accumulation circuit. High-temperature heat accumulation circuit contains a high-temperature heat exchanger for air cooling, which is interconnected with the first compressor and the low-temperature heat exchanger for air cooling of the pneumatic accumulation circuit.

EFFECT: increasing the efficiency of tower-type CSPP.

4 cl, 2 dwg