Flue gas desulfurization absorption tower with energy-saving and efficiency-improving functions

The utility model belongs to the technical field of energy conservation and efficiency improvement of flue gas desulfurization of a thermal power plant, and particularly relates to a flue gas desulfurization absorption tower with energy conservation and efficiency improvement functions, which comprises a sawtooth hole type disc, a support beam, an absorption tower spraying layer and an absorption tower oxidation pond, an absorption tower spraying layer is arranged at the upper part of the absorption tower oxidation pond, an absorption tower inlet flue is arranged on the side wall of the absorption tower oxidation pond, an absorption tower demister is arranged in the absorption tower spraying layer, and an absorption tower outlet flue is arranged at the top of the absorption tower spraying layer; the sawtooth-hole-shaped disc is arranged between the absorption tower oxidation pond and the absorption tower spraying layer, the sawtooth-hole-shaped disc covers the whole absorption tower flue gas circulation cross