SOUND-INSULATING CASING WITH AERODYNAMIC MUFFLERS Russian patent published in 2018 - IPC G10K11/00 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustic isolation of equipment with means of broadband sound-attenuation and can be used in all sectors of the national economy as a means of protection against noise. In a sound-proof casing with an aerodynamic soundproofing system, made in the form of a rectangular parallelepiped covering technological equipment, technological equipment is installed on at least four vibration-proof supports, which are based on the building's ceiling, where the clearance between the base of the technological equipment and the cutoff in the lower face of the rectangular parallelepiped is designed in order to prevent the transmission of vibrations from the technological equipment to the soundproof enclosure of the casing, and to provide the required microclimate during the process, a fan is installed inside the casing, and ventilating channels are made in the soundproof enclosure to prevent equipment overheating, while the internal walls of the ventilation ducts are treated with the sound-absorbing material and with the acoustically transparent material of the "Poviden" type, while in order to reduce the aerodynamic noise of the ventilation system, the muffler is provided with noise silencers installed respectively on the inlet and outlet ventilation ducts, while on the inner surface of the soundproofing enclosure the soundproofing element in the form of the smooth and perforated surface is fixed, between which the multi-layer soundproofing structure is located.

EFFECT: increased efficiency of noise suppression.

1 cl, 5 dwg