Efficient combined cooling heating and power Brayton system with wide heat source application and total heat recovery

The invention relates to an efficient combined cooling heating and power Brayton system with wide heat source application and full heat recovery, the output of a heat source system is connected with the input of a high-temperature heater and a high-temperature reheater of an SCO2 Brayton cycle, the output of the high-temperature heater and the output of the high-temperature reheater are connected with a low-temperature heater, and the output of the low-temperature heater is connected with the input of the heat source system; a carbon dioxide storage tank of the SCO2 Brayton cycle is connected with the input of a generator of the ammonia water absorption refrigeration cycle and the input of a second evaporator of the regenerative SCO2 heat pump cycle; and the output of the generator of the ammonia water absorption refrigeration cycle and the output of the second evaporator of the regenerative SCO2 heat pump cycle are connected with the output of the precooler of the SCO2 Brayton cycle. The efficient combined c