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Noise reducing system of hydropower station

A technology of noise reduction system and hydropower station, which is applied in the direction of hydropower station, hydropower generation, water conservancy project, etc., can solve the problems of easy passage of bass noise, no noise reduction structure, no obvious effect, etc., and achieves easy absorption and higher frequency. Effect

Active Publication Date: 2016-07-27
INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
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AI Technical Summary

Problems solved by technology

[0002] The current hydropower station produces huge noise during flood discharge, and there is no reasonable noise reduction structure; the reason is that the impact of the water body produces a large amount of low-frequency noise. Noise can easily pass through ordinary soundproof walls; therefore, the noise of the hydropower station has always affected the surrounding environment

Method used

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  • Noise reducing system of hydropower station
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Embodiment Construction

[0010] Below in conjunction with accompanying drawing and embodiment the present invention is further described:

[0011] exist figure 1 In the shown embodiment one, the noise reduction system of the hydropower station includes a sound-absorbing wall 2 built downstream of the hydropower station 1, and the side of the sound-absorbing wall 2 facing the hydropower station 1 is made of microporous materials; The air injection device 3 of the sound-absorbing wall 2, when the air injection device 3 sprays air on the sound-absorbing wall 2, a high-speed airflow layer 4 is formed above the water surface between the hydropower station 1 and the sound-absorbing wall 2; Until the sound-absorbing wall 2 gradually diffuses downwards, the entire area above the water surface at the sound-absorbing wall 2 has a relatively fast gas flow velocity.

[0012] In the above-mentioned noise reduction system of a hydropower station, the air injection device 3 is provided with high-pressure air by a h...

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Abstract

The invention provides a noise reducing system of a hydropower station. The noise reducing system comprises a noise absorbing wall constructed at the downstream of the hydropower station; one surface, facing the hydropower station, of the noise absorbing wall is formed by a microhole material; an air spraying device, facing the noise absorbing wall, is arranged at the upper part of the hydropower station; when the air spraying device sprays air to the noise absorbing wall, a high-speed airflow layer is formed above a water surface between the hydropower station and the noise absorbing wall; and a high-pressure air pocket supplies high-pressure air to the air spraying device, and is inflated by an air pump. The noise reducing system of the hydropower station can reduce the flood discharge noise of the hydropower station to a greater extent.

Description

technical field [0001] The invention relates to the field of water conservancy engineering facilities, in particular to a noise reduction system for a hydropower station. Background technique [0002] The current hydropower station produces huge noise during flood discharge, and there is no reasonable noise reduction structure; the reason is that the impact of the water body produces a large amount of low-frequency noise. Noise can easily pass through ordinary soundproof walls; therefore, the noise of the hydropower station has always affected the surrounding environment. Contents of the invention [0003] In view of the above problems, the object of the present invention is to provide a noise reduction system for a hydropower station, which can reduce the flood discharge noise of the hydropower station to a large extent. [0004] The technical solution adopted by the present invention to solve the technical problem is: the noise reduction system of the hydropower sta...

Claims

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Application Information

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IPC IPC(8): E02B8/06
CPCE02B8/06E02B9/00Y02E10/20
Inventor 钱月珍
Owner INST OF FLEXIBLE ELECTRONICS TECH OF THU ZHEJIANG
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