METHOD FOR ACOUSTIC ISOLATION OF EQUIPMENT Russian patent published in 2018 - IPC E04B1/84 G10K11/16 

FIELD: acoustics.

SUBSTANCE: invention relates to acoustic isolation of equipment with means of broadband acoustic suppression and can be used in all sectors of the national economy as a means of protection against noise. Technical result is achieved by the fact that the method of sound insulation of equipment, consisting in the fact that the sound-insulating enclosure is installed on the floor of the building by means of at least four vibration-proof supports, made of the elastic material, for example, soft rubber, polyurethane, and it is lined from the inside with the sound-absorbing element, differs in that the sound-insulating enclosure is made in the form of a rectangular parallelepiped with the cutout in its lower face under the base of the process equipment, at the same time the base of the process equipment is installed on at least four vibration-proof supports that are based on the floor of the building, the clearance between the base of the process equipment and the cutout in the lower face of the rectangular parallelepiped is designed in order to prevent the transmission of vibrations from the process equipment to the sound-insulating enclosure, in which the ventilation channels are performed in order to eliminate 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, wherein the sound-absorbing element is fixed to the inner surface of the sound-insulating enclosure and it is made in the form of a smooth and perforated surface, between which the multi-layered sound-absorbing structure is placed, the sound-absorbing element, which is fixed to the inner surface of the sound-insulating enclosure, is made in the form of a rigid and perforated wall, between which a multi-layered sound-absorbing element is provided, which is made in the form of two layers: one of which, adjacent to the rigid wall, is sound-absorbing, and the other one, which is adjacent to the perforated wall, is made with the perforation from the sound-reflecting material of a complex profile, which consists of uniformly distributed hollow tetrahedra, while the material based on aluminum-containing alloys is used as a sound-reflecting material, followed by filling with titanium hydride or air with the density within 0.5…0.9 kg/m³ with the following strength properties: compressive strength within 5…10 MPa, bending strength within 10…20 MPa, for example foam aluminum, or soundproofing plates based on the glass staple fiber of the "Shumostop" type with the material density of 60÷80 kg/m³, or the material based on the magnesia binder with reinforcing fiberglass or glass wool.

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

1 cl, 4 dwg