Test system for simulating different shielding plant environment temperatures of nuclear power plant

The invention relates to the technical field of nuclear power plant shielding plants, and discloses a test system for simulating different shielding plant environment temperatures of a nuclear power plant, which comprises a circulating pipeline, a constant-temperature water interlayer, a water inlet, a water outlet, a centrifugal pump and a water supply tank, a cooling system is arranged between the centrifugal pump and a water inlet of the constant-temperature water interlayer, a heater is arranged in the water supply tank, a temperature sensor is arranged at the water inlet of the constant-temperature water interlayer, heated water in the water supply tank enters the constant-temperature water interlayer through the centrifugal pump and then returns to the water supply tank, and the cooling system is matched with the heater to realize water temperature regulation and control so as to simulate different environment temperatures; under the feedback of the temperature sensor, the water temperature in the water