LOW-NOISE TECHNICAL ROOM Russian patent published in 2019 - IPC G10K11/16 E04H5/00 

FIELD: acoustics.

SUBSTANCE: invention relates to technical means for providing acoustic environmental safety by suppressing noise emissions, produced by industrial-technological and engineering equipment, represented, in particular, by pumping, compressor stations, power plants, ventilation and air conditioning systems, electric machines, mounted inside noise generating technical rooms. Low-noise technical room is equipped with air gaps between the opposite end faces and relatively opposed mounting surfaces of wall and ceiling fencing structures of the technical room, detached, single-molded combined sound-absorbing panels made up of a porous air-driven crushed sound-absorbing structure of a substance and integrated in it cavity frequency-tuned noise-suppressing structural elements, presented in the form of quarter-wave acoustic resonators. Quarter-wave acoustic resonators are formed by a carrier inner air-blowing film elastic shell made in the form of a dead-end tubular cavity sound-transparent element of a certain overall dimensions of its tubular part with an open neck part and a bottom part covered with a hard sound-reflecting bottom. Low-noise technical room is endowed with a broadband in terms of frequency composition sound absorption effect with an expressed low-frequency effect of reducing sound pressure at discrete values of the working dominant functional frequencies of sound radiation f_ms, noise-generating technical objects mounted in it.

EFFECT: invention can be used to improve acoustic comfort in adjacent residential, industrial, and public premises of buildings and constructions integrated adjacent to specified noise-generating technical rooms.

16 cl, 25 dwg