High-salinity wastewater multi-effect evaporation and concentration equipment utilizing waste heat of power plant

The utility model belongs to the field of industrial wastewater treatment, and particularly relates to high-salinity wastewater multi-effect evaporation and concentration equipment utilizing waste heat of a power plant. The system comprises a flue gas heat source heat exchanger, a steam heat source heat exchanger, a gas-liquid separator, a steam compressor, a wastewater preheater, multiple-effect evaporation equipment, an induced draft fan, a demister, water tanks, matched pump pipe valves and the like. According to the equipment disclosed by the utility model, the selectivity of a heat source used by the equipment is increased while the waste heat of flue gas is utilized, the concentration equipment can be ensured to continuously and stably output and operate under the working conditions of low load and deep peak regulation of a unit, the reduced and recycled fresh water fully meets the water quality requirement of process water in a plant, and the concentrated solution treatment water quantity of a curing s