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Building ventilation silencing device

A noise reduction device, building technology, applied in the direction of ventilation system, space heating and ventilation, space heating and ventilation details, etc., can solve the problem of low ventilation efficiency, achieve the effect of improving noise reduction performance and reducing resistance

Inactive Publication Date: 2015-12-30
SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] To sum up, the sound insulation performance of the current ventilation and sound insulation window technology can mostly meet the requirements, but the ventilation efficiency is low and needs to be improved.

Method used

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  • Building ventilation silencing device

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Embodiment Construction

[0026] see figure 1 , figure 2 , with reference to image 3 , Figure 4 , the building ventilation noise elimination device of the present invention is installed on the outer wall 1 of the building, comprises the air vent that offers on the outer wall, is provided with the rolling shutter door 2 that is used to seal the air vent outside the air vent, is provided with in the air vent There is a noise reduction mechanism. The silencing mechanism includes a silencing layer 3 arranged around the inside of the vent, and a plurality of silencing units 4 arranged horizontally between the silencing layers, and horizontal ventilation channels 5 are arranged between adjacent silencing units. . figure 1 , figure 2 Shown in, 21 is a rolling shutter, 22 is a rolling shutter reel box, 23 is a rolling shutter control rod, and 24 is a rolling shutter guide rail.

[0027] see image 3 , Figure 4 , the muffler unit 4 among the present invention comprises the rectangular frame that is...

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Abstract

The invention relates to a building ventilation silencing device, which is installed on a building external wall and comprises a ventilation opening arranged in the external wall, wherein the outer side of the ventilation opening is provided with a rolling shutter door for sealing the ventilation opening, and a silencing mechanism is arranged in the ventilation opening. The silencing mechanism comprises silencing layers arranged on the periphery of the inner side of the ventilation opening, and a plurality of horizontal silencing units arranged between the silencing layers, wherein a horizontal ventilation duct is arranged between every two adjacent silencing units. The independently designed building external wall ventilation silencing device can not influence the appearance and the functions of lighting, sound insulation and the like of the window. The sound insulation property during opening is equivalent to the common single window closing condition, thereby ensuring the indoor ventilation requirements.

Description

technical field [0001] The invention relates to a noise elimination device, in particular to a building ventilation noise elimination device. Background technique [0002] In densely populated urban areas, in order to avoid the impact of road traffic and other noise and protect the indoor environment, buildings need to solve the contradiction between opening windows for ventilation and closing windows for noise reduction. [0003] The prior art to solve this type of problem generally adopts natural ventilation sound insulation windows, mechanical ventilation sound insulation windows or active ventilation sound insulation windows, all of which basically make a fuss about windows. Through the structural design of window frames, window sills, and some windows, air ducts can be made, and sound-absorbing materials, structures, or active control units can be used to play a certain role in noise reduction. They open for ventilation when the windows are closed, and some are equippe...

Claims

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Application Information

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IPC IPC(8): F24F13/24F24F7/00E06B9/08
CPCF24F13/24E06B9/08F24F7/00F24F2013/242
Inventor 祝文英周裕德应乐惇张玮晨孙晓明夏丹储益萍王晓楠刘长卿
Owner SHANGHAI ACADEMY OF ENVIRONMENTAL SCIENCES
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