Thermophotovoltaic and thermoelectric co-generation device for secondary power generation

The utility model discloses a thermophotovoltaic and thermoelectric co-generation device for secondary power generation. The device comprises a combustor, a selective filter, a photovoltaic cell, a cell cooling channel, a waste-heat recovery heat exchanger, a compressor, a gas turbine and a generator set. The cell cooling channel is arranged on the back of the photovoltaic cell, and is used for lowering the temperature during a power generation process of the photovoltaic cell trough the flowing of cooling water, and warm water is generated for household use. The waste-heat recovery heat exchanger and the compressor are disposed at a smoke discharge port of the combustor. The refrigerant of the heat exchanger is also cooling water. High-temperature hot water is generated by heat exchange, and the temperature of high-temperature smoke is reduced to the maximum, so that the requirements on working temperature of the compressor are satisfied. High-pressure smoke generated by the compressor enters the gas turbine to explode and work, thereby enabling the secondary power generation of the generator. According to the utility model, heat released by combustion of fuel is utilized to the maximum, so that the energy conversion efficiency of the device is further increased.