RU2011119938A

RU2011119938A - METHOD OF SOUND INSULATION OF EQUIPMENT AND SOUND INSULATION FENCE

Info

Publication number: RU2011119938A
Application number: RU2011119938/13A
Authority: RU
Inventors: Олег Савельевич Кочетов; Мария Олеговна Стареева
Original assignee: Олег Савельевич Кочетов; Мария Олеговна Стареева
Priority date: 2011-05-19
Filing date: 2011-05-19
Publication date: 2012-11-27

Abstract

1. Способ звукоизоляции оборудования, который осуществляют путем укрытия виброакустически активного технологического оборудования с помощью ограждения, отличающийся тем, что кожух ограждения выполняют в форме прямоугольного параллелепипеда, устанавливают его на виброизолирующие опоры и выполняют состоящим из связанных между собой отдельных шумопоглощающих элементов, внутренние стенки которых покрывают звукопоглощающим и акустически прозрачным материалами, при этом в кожухе выполняют вентиляционные каналы для устранения перегрева оборудования, внутренние стенки которых, в свою очередь, также обрабатывают звукопоглощающим и акустически прозрачным материалами, а платформу оборудования устанавливают на виброизолирующие опоры, которые базируют на перекрытии производственного здания, при этом расчет требуемой звукоизоляции кожуха как негерметичного ограждения дБ, проводят по следующей зависимости:где R- требуемая звукоизоляция кожуха, дБ, R- средняя звукоизоляция сплошной части ограждении i-го кожуха, дБ,- реверберационный коэффициент звукопоглощения внутри i-го кожуха, где α- реверберационный коэффициент звукопоглощения для ограждений без звукопоглощающего материала, α- реверберационный коэффициент звукопоглощения звукопоглощающего материала, ΣS- площадь нанесения звукопоглощающего материала, м, τ- энергетический коэффициент прохождения звука через глушитель технологического отверстия (для простого отверстия τ=1, причем простым отверстием считается отверстие без глушителя шума, как в нашем случае), ΣS- суммарная площадь технологических отверстий для i-го кожуха машины, м, ΣS- суммарная площадь с1. The method of sound insulation of equipment, which is carried out by sheltering vibroacoustic active technological equipment with the help of a fence, characterized in that the casing of the fence is made in the form of a rectangular parallelepiped, is mounted on vibration-absorbing supports and is made up of interconnected separate sound-absorbing elements, the inner walls of which are covered sound-absorbing and acoustically transparent materials, while in the casing perform ventilation ducts to eliminate overheating and equipment, the inner walls of which, in turn, are also treated with sound-absorbing and acoustically transparent materials, and the equipment platform is installed on vibration-absorbing supports that are based on the overlap of the production building, while the calculation of the required sound insulation of the casing as an unsealed dB enclosure is carried out according to the following dependence: where R is the required sound insulation of the casing, dB, R is the average sound insulation of the solid part of the fence of the i-th casing, dB, is the reverberation sound absorption coefficient inside the i-th a fire, where α is the reverberation sound absorption coefficient for fences without sound-absorbing material, α is the reverberation sound absorption coefficient of sound-absorbing material, ΣS is the area of application of sound-absorbing material, m, τ is the energy coefficient of sound transmission through the silencer of the technological hole (for a simple hole, τ = 1, and a simple hole is a hole without a noise suppressor, as in our case), ΣS is the total area of technological holes for the i-th machine casing, m, ΣS is the total area with

Claims

1. The method of sound insulation of equipment, which is carried out by sheltering vibroacoustic active technological equipment with the help of a fence, characterized in that the casing of the fence is made in the form of a rectangular parallelepiped, is mounted on vibration-absorbing supports and is made up of interconnected separate sound-absorbing elements, the inner walls of which are covered sound-absorbing and acoustically transparent materials, while in the casing perform ventilation ducts to eliminate overheating and equipment, the inner walls of which, in turn, are also treated with sound-absorbing and acoustically transparent materials, and the equipment platform is installed on vibration-absorbing supports that are based on the overlap of the production building, while the calculation of the required sound insulation of the casing as an unsealed dB enclosure is carried out according to the following dependence:

where R _leather.tr is the required sound insulation of the casing, dB, R _si is the average sound insulation of the solid part of the guard of the i-th casing, dB,

is the reverberation coefficient of sound absorption inside the i-th casing, where α _о is the reverberation coefficient of sound absorption for fences without sound-absorbing material, α _m is the reverberation coefficient of sound absorption of sound-absorbing material, ΣS _m is the area of application of sound-absorbing material, m ² , τ _i is the energy transmission coefficient of sound through the silencer of the technological hole (for a simple hole, τ _i = 1, and a simple hole is considered to be a hole without a silencer, as in our case), ΣS _oi is the total area technological holes for the i-th casing of the machine, m ² , ΣS _i - total area of the solid part of the fence, m ² .

2. Sound insulating fence containing a casing covering technological equipment, characterized in that the casing is made in the form of a rectangular parallelepiped and contains vibration-insulating supports made of elastic material, by means of which it is installed on the floor of the building and is made up of interconnected separate sound-absorbing elements, internal the walls of which are lined with sound-absorbing and acoustically transparent materials, while ventilation ducts are made in the casing to eliminate regreva equipment, the inner walls of which, in turn, also processed sound absorbing and acoustically transparent materials, equipment and the base is mounted on shock absorbers which are based on overlap of the industrial building.