Ammonia water MVR steam stripping system and steam stripping method thereof

The invention relates to the technical field of chemical equipment, in particular to an ammonia water MVR steam stripping system and a steam stripping method.The ammonia water MVR steam stripping system comprises a rectifying tower, a first steam compressor and a falling film evaporator, a feeding port of the rectifying tower is communicated with external material conveying equipment, and a gas inlet of the rectifying tower is communicated with external steam conveying equipment; the falling-film evaporator comprises a falling-film heat exchanger and a falling-film evaporation chamber, a tube pass of the falling-film heat exchanger is communicated with the falling-film evaporation chamber, and a liquid outlet of the rectifying tower is communicated with the tube pass of the falling-film heat exchanger; the two ends of an upper tube pass of the falling film heat exchanger are communicated through a pipeline and provided with a circulating conveying pump used for circularly conveying liquid in the tube pass, an