Efficient energy-saving heat exchange water tank

The efficient energy-saving heat exchange water tank comprises a tank body and a top cover, the top end of the tank body is of an opening structure, and an inner partition plate is installed in the tank body; the top cover is mounted at the top end of the box body and is provided with an inner partition plate, the inner partition plate divides the interior of the box body into two areas, and the two areas are communicated through a gap between the top end of the inner partition plate and the top cover, so that heat exchange between raw water on one side of the inner partition plate and the coil pipe is facilitated; the heated raw water and the cooled condensate water are mixed on the other side of the inner partition plate, so that the temperature of the raw water is increased, meanwhile, the temperature of the condensate water is reduced, the mixed raw water and condensate water can be conveyed to the steam generator again for use, the problem that water mist is generated due to the fact that the temperature