SOUNDPROOFING ENCLOSURE WITH VIBRATION ISOLATION SYSTEM Russian patent published in 2018 - IPC E04B1/82 G10K11/16 

FIELD: soundproofing.

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. Soundproof enclosure with a vibration isolation system is made in the form of a rectangular parallelepiped covering the process equipment, process equipment is installed on at least four vibration-proof supports, which are based on the building floor slab. Clearance between the base of the process equipment and the cutoff in the lower face of the rectangular parallelepiped is made. In the soundproof enclosure, ventilation ducts are made. Internal walls of the ventilation ducts are treated with a sound-absorbing material and an acoustically transparent material of the "poviden" type. On the inner surface of the soundproofing enclosure the sound-absorbing element in the form of the smooth and perforated surface is fixed, between which the multi-layer sound-absorbing structure is located, which is made of a complex shape is an alternation of solid sections and hollow sections. Solid sections are formed by smooth prismatic surfaces located perpendicular to the smooth and perforated surfaces and fixed to a smooth surface, as well as two associated with them and inclined, relatively smooth prismatic surfaces, surfaces of complex shape, having on the one hand a smooth surface, and on the other side dentate or wavy, and to the smooth surface are attached relief sound-absorbing elements. Vibration isolator on which the technological equipment is based, based on the building's overlapping, contains a body and an elastic element of elastomer, the housing is made in the form of a square base, to which is attached a fixing element with a cylindrical sleeve by means of hollow rivets, and the housing cover is made of coaxially connected by means of a circular partition of two cylindrical bushings, and the elastic element is made in the form of a cylindrical helical spring enclosing an elastic element of a cylindrical shape with its inner surface. Resilient element is located between the base and the housing cover coaxially with the cylindrical bushings.

EFFECT: technical result is to increase the efficiency of noise suppression.

1 cl, 5 dwg