Water-saving and energy-saving pure water preparation device for chlor-alkali workshop

The utility model discloses a water-saving and energy-saving pure water preparation device for a chlor-alkali workshop. The water-saving and energy-saving pure water preparation device comprises a rawwater tank, a booster pump, a heat exchanger, a multi-medium filter, an ultrafilter, an ultrafiltration water production tank, a reverse osmosis filter, a pure water tank, a concentrated water recovery tank, an adsorption filter, a circulating water tank and pipelines, the booster pumps comprise a raw water booster pump, an ultrafiltration produced water booster pump and a concentrated water booster pump; the heat exchanger comprises a steam heat exchanger and a circulating water heat exchanger; the pipelines comprise a raw water supply pipeline, a flowing water conveying pipeline, a concentrated water recovery pipeline, a steam pipeline and a circulating water pipeline. According to the utility model, ultrafiltration concentrated water and reverse osmosis concentrated water are collectedand treated and then are