Absorption tower device for producing high-concentration formaldehyde solution

An absorption tower device for producing a high-concentration formaldehyde solution relates to the field of formaldehyde production equipment and comprises a tower body, a steam outlet assembly, a filler area, a liquid outlet assembly, a three-way pipe, a liquid storage tank, a steam outlet pipe I, a steam outlet pipe II, a formaldehyde steam generator and a controller, the steam outlet assembly, the filler area and the liquid outlet assembly are arranged on the absorption chamber from bottom to top; the three-way pipe is communicated with the liquid outlet assembly, the liquid storage tank and the bottom of the absorption chamber; the steam inlet end of the formaldehyde steam generator communicates with the top of the absorption chamber through a first steam outlet pipe, and the steam outlet end communicates with the steam outlet assembly through a second steam outlet pipe. The steam outlet assembly is arranged, a plurality of steam outlet rings synchronously rotate along with rotation of the steam passing p