Ventilation and air change sound insulation window

Abstract

A ventilation and air change sound insulation window is composed of an inner sound insulation window, an outer sound insulation window, a sound absorption structure, air outtake mufflers and air intake mufflers. A window frame of the inner sound insulation window is flush with an internal wall face, a window frame of the outer sound insulation window is arranged on an external wall face, the sound absorption structure is arranged between an upper window frame of the inner sound insulation window and an upper window frame of the outer sound insulation window, the air outtake mufflers are arranged between the upper border of a window hole and the upper window frames, and air intake mufflers are arranged between the lower border of a window hole and lower window frames. Having a wider sound insulation frequency band and greater amount of sound insulation capacity, the mufflers have the advantages of being large in cross-sectional areas of effective sound insulation channels, low in air speed and low in air pressure loss, so that indoor air circulation can be sustained in normal circumstances, and fresh air volume requirements per capita can be met in case of normal population living indoors. The ventilation and air change sound insulation window is compact in structure and convenient to mount.

Description

Technical field [0001] The present invention relates to the technical field of noise control, in particular to a ventilation and sound insulation window which can effectively block the outdoor noise of a building from being transmitted indoors and at the same time can ventilate. Background technique [0002] At present, noise has become a major environmental pollution, and the acoustic environment of residents indoors, especially those facing the street, has attracted more and more attention and attention. Therefore, how to solve the traffic noise disturbance has become a hot spot of people's attention. Although the use of sound insulation windows is a relatively passive means to solve traffic noise, the effect is more obvious. Practice has proved that when sound insulation windows are installed in areas with severe road noise, indoor noise can be reduced to below 30dB, which meets the requirements of "Sound Environment Quality". Standard" GB3096-2008 requirements. [0003] Howev...

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Problems solved by technology

[0017] In order to overcome the influence of the existing sound insulation windows on blocking air circulation and the additional noise and energy consumption caused by setting the fan, the present invention provides a sound insulation window for ventilation and ventilation. Acoustic windows not only have high sound insulation, but also can ventilate and exchange air to ensure indoor air quality

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