ACOUSTIC CONSTRUCTION FOR INDUSTRIAL FACILITIES Russian patent published in 2017 - IPC E04B1/84 G10K11/16 

FIELD: construction.

SUBSTANCE: acoustic construction for industrial facilities contains the frame of the workshop, window and door openings, walls with acoustic fences, ceiling with acoustic lining, floor covered with vibration cushioning material, piece sound absorbers comprising the frame where sound absorbing material is located, and mounted above the noisy equipment, which is mounted on the antivibration bearings. The window openings comprise vacuum sound-proofing glass units. The acoustic fence of each wall contains a smooth and perforated surface, between which a multi-layered sound-absorbing structure of complex shape is located, which is an alternation of solid sections and hollow sections. The solid portions are formed by smooth prismatic surfaces arranged perpendicular to the smooth and the perforated surfaces and fixed to the smooth surface, as well as by two surfaces of a complex shape, connected therewith and inclined with respect to the smooth prismatic surfaces, on one side the surfaces of a complex shape have smooth surface, on the other side sound-absorbing construction has scalloped or undulating surface shape, or surface shape formed by spherical sections. Wherein, the tops of the teeth or protrusions face inside these surfaces, and the surfaces themselves are fixed on the perforated surface, texturized sound-absorbing elements are fixed on the smooth surface, for example, in the form of tetrahedra.

EFFECT: improved efficiency of noise suppression.

3 dwg