METHOD OF SOUND INSULATION Russian patent published in 2018 - IPC E04B1/74 E04B1/82 G10K11/16 

FIELD: acoustics.

SUBSTANCE: invention relates to the equipment soundproofing. equipment sound insulation method is IN that soundproof enclosure is installed on the building roof slab by means of, at least four vibration-proof supports, made of elastic material and lining it on the inside with the sound-absorbing element, sound-insulating enclosure is made in the form of rectangular parallelepiped with cut-out in its lower face for the process equipment base, at that, installing the process equipment base on at least four vibration-proof supports, at that, making a gap between the process equipment base and the cutout in the rectangular parallelepiped lower face, at that, the sound-absorbing element is fixed to the sound-insulating enclosure inner surface, and it is made in the form of smooth and perforated surfaces, between which placing the multi-layered sound-absorbing structure, at that, the sound-absorbing member multi-layer sound-absorbing structure, which is fixed to the sound-insulating enclosure inner surface, is made in the form of four layers: first layer, the sound-reflecting one, is made solid and profiled, of complex polyhedral shape, consisting of inclined edges in the lower part connected by the horizontal edges, and between the edges and the rigid wall a second layer of sound-absorbing material is arranged, wherein between the perforated wall and the sound-reflecting layer, with an air gap relative to the sound-reflecting layer, third intermittent layer of soft sound-absorbing material is arranged, which is secured to the perforated wall and is made in the form of polyhedrons, with equidistant and congruent surfaces located under the sound-reflecting layer corresponding sides, at that, the soundproofing enclosure vibration isolating system vibration isolator comprises body and elastomeric elastic member, the body is made in the form of two opposed flanges having square or rectangular shape, rigidly connected to the elastomer, wherein on the flange fasteners in the form of located at the flange corners holes are made, and elastomer side surface profile is made cylindrical or conical or hyperbolic in the form of a rod of equal resistance, having constant rigidity in the axial and transverse directions, elastomer side surface profile is made corrugated, the vibration isolator height h to the elastomer support surface diameter D ratio is in the optimum ratio of values: h/D=0.45…1.55.

EFFECT: technical result is the increased efficiency of noise suppression.

1 cl, 4 dwg