Rapid liquid heating device based on electromagnetic induction principle

The invention discloses a rapid liquid heating device based on an electromagnetic induction principle, which comprises a liquid storage tank, a plurality of cuboid grooves, a winding, a bracket, a spherical crown-shaped metal sheet, a liquid level sensor, a temperature sensor, a liquid inlet valve, a liquid discharge valve, a controllable switch, a frequency converter and a controller, the windings are covered and fixed by a hard insulating high-permeability magnetic material and are vertically mounted in the middle of the cuboid groove in groups, the plurality of brackets are fixedly mounted outside the cuboid groove, and the spherical-crown-shaped metal sheets are fixedly mounted on the brackets; according to data measured by a sensor, the device is controlled by a controller, the winding below the liquid level is electrified, and a plurality of spherical crown-shaped metal sheets are arranged in the liquid storage tank, so that heat loss is effectively reduced and the energy utilization rate is improved on