Concrete steam curing device for measuring and controlling temperature according to internal and external temperature difference of test piece

The utility model discloses a concrete steam curing device for measuring and controlling temperature through temperature difference inside and outside a test piece, which is characterized in that temperature sensors are arranged inside the test piece and in a curing chamber, the temperature sensors are connected with a temperature inspecting instrument, the temperature inspecting instrument is connected with a display, the display is connected with a PLC (programmable logic controller), and the PLC is connected with an electromagnetic valve controller. The electromagnetic valve controller is connected with the heating electromagnetic valve and the cooling electromagnetic valve, the heating electromagnetic valve is arranged on the steam pipeline, and the cooling electromagnetic valve is arranged on an exhaust pipe communicated with the exhaust device; the display receives internal and external temperature data of the test piece, the display calculates the internal and external temperature difference of the tes