Enhanced geothermal system development test device

The invention discloses an enhanced geothermal system development test device. The enhanced geothermal system development test device comprises a carbon dioxide steel cylinder, a carbon dioxide supercritical transportation device, a simulation hot dry rock reactor, a carbon dioxide turbine, a high-pressure frequency conversion type plunger pump, and a PLC data acquisition system. Carbon dioxide in the carbon dioxide steel cylinder passes through a carbon dioxide flow regulating valve and a pressure regulating valve, enters the carbon dioxide supercritical transportation device for being pressurized to a high pressure, and then enters the simulation hot dry rock reactor for temperature rise. The high-temperature high-pressure carbon dioxide CO2 after temperature rise enters the carbon dioxide turbine. The carbon dioxide turbine is used to drive a generator or a power machine for energy conversion. The low-grade carbon dioxide coming out from the carbon dioxide turbine enters the heat exchanger. The carbon dioxide after heat exchange is sent back to the simulation hot dry rock reactor through the high-pressure frequency conversion type plunger pump for cyclic utilization.