Anti-scaling energy-saving heat exchanger

The utility model belongs to the technical field of heat exchangers, and particularly relates to an anti-scaling energy-saving heat exchanger which comprises a barrel, and a filtering mechanism is arranged on one side of the barrel. The filtering mechanism comprises a filtering outer pipe arranged on one side of the barrel, an ion generator installed on the inner wall of the filtering outer pipe, a main machine connected to one side of the ion generator through a wire, and an anion filtering net installed on the outer wall of the top of the ion generator. The main machine controls the ion generator to work, the anion filter screen can adsorb positively charged calcium and magnesium ions in water, incrustation is separated out on the anion filter screen, a good anti-scaling effect is achieved, and when the incrustation is adsorbed on the inner wall of the heat exchange pipe, the electromagnetic valve and the sealing cover are opened, and the heat exchange pipe is sealed. Water in the water inlet pipe can be co