System and method for separating triethylamine and water azeotrope

The invention discloses a system and a method for separating a triethylamine and water azeotrope. The system comprises: a split-phase reflux tank for receiving a water-containing triethylamine solution and an azeotrope formed by condensed triethylamine and water and dividing the azeotrope into a water phase and an oil phase; the dehydrating tower is communicated with the split-phase return tank and is used for receiving the oil phase and rectifying and separating the oil phase to obtain a triethylamine product at a tower kettle and a first gas phase at the tower top, and the first gas phase comprises an azeotrope formed by triethylamine and water; the recovery tower is communicated with the split-phase return tank and is used for receiving the water phase and carrying out rectification separation to obtain water of a tower kettle and a second gas phase at the tower top; and the condensing device is used for receiving and condensing the first gas phase and the second gas phase to obtain first gas phase condens