CN107489133B - Sound-absorbing wall - Google Patents

Sound-absorbing wall Download PDF

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Publication number
CN107489133B
CN107489133B CN201710754355.3A CN201710754355A CN107489133B CN 107489133 B CN107489133 B CN 107489133B CN 201710754355 A CN201710754355 A CN 201710754355A CN 107489133 B CN107489133 B CN 107489133B
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China
Prior art keywords
sound
power station
absorbing wall
air
wall
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CN201710754355.3A
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Chinese (zh)
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CN107489133A (en
Inventor
钱月珍
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Tianjin Intelligent Investment Technology Achievement Transformation Co ltd
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Jiangsu Feilong Decoration Engineering Co Ltd
Wuxi Jingteng Architectural Decoration Engineering Co Ltd
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Priority to CN201710754355.3A priority Critical patent/CN107489133B/en
Publication of CN107489133A publication Critical patent/CN107489133A/en
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    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B8/00—Details of barrages or weirs ; Energy dissipating devices carried by lock or dry-dock gates
    • E02B8/06—Spillways; Devices for dissipation of energy, e.g. for reducing eddies also for lock or dry-dock gates
    • E—FIXED CONSTRUCTIONS
    • E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
    • E02B—HYDRAULIC ENGINEERING
    • E02B9/00—Water-power plants; Layout, construction or equipment, methods of, or apparatus for, making same
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E10/00—Energy generation through renewable energy sources
    • Y02E10/20—Hydro energy

Abstract

The present invention provides a kind of sound-absorbing wall, is implemented in power station downstream, and the sound-absorbent wall is made of to the one side in power station poromerics；The top in the power station is equipped with the air-jet device towards the sound-absorbing wall, and when the air-jet device is to the sound-absorbing wall jet, high-speed flow layer is formed above the water surface between power station, sound-absorbing wall；The air-jet device provides pressure-air by high pressure gas bag, and the high pressure gas bag is by air-pump inflating.The power station noise reduction system can largely reduce the flood discharge noise in power station.

Description

Sound-absorbing wall
The application is that application No. is the divisional applications of 201610178844.4 entitled power station noise reduction systems.
Technical field
The present invention relates to water engineering facility fields, particularly, are related to a kind of power station noise reduction system.
Background technique
Current power station generates huge noise in flood discharge, and there is no reasonable denoising structures；The reason is that, The impact of water body generates a large amount of low frequency noise, this kind of low frequency noise is constrained even with sound insulation band, also obviously do not imitated Fruit, thump are easy to across common soundproof wall；Therefore, the noise in power station always affects surrounding enviroment.
Summary of the invention
In view of the above-mentioned problems, the purpose of the present invention is to provide a kind of power station noise reduction system, the power station noise reduction system The flood discharge noise in power station can largely be reduced.
The technical solution adopted by the present invention to solve the technical problems is: the power station noise reduction system includes being implemented in water power It stands the sound-absorbing wall in downstream, the sound-absorbent wall is made of to the one side in power station poromerics；The top in the power station is equipped with Air-jet device towards the sound-absorbing wall, when the air-jet device is to the sound-absorbing wall jet, between power station, sound-absorbing wall High-speed flow layer is formed above the water surface；The air-jet device provides pressure-air by high pressure gas bag, and the high pressure gas bag is by air pump Inflation.
Preferably, sound insulation band has been built in the two sides of the section between the power station and sound-absorbing wall respectively.
Preferably, the sound-absorbing wall is in penetrating before and after water surface part below, water flow is not constituted and stopped；Further Ground, the sound-absorbing wall include knee wall and sound absorbing layer；The knee wall is made of concrete or steel construction grid, and front and back is penetrating； The sound absorbing layer is made of the light microporous material that density is less than water, in the width rectangle equal with the knee wall, and with The knee wall is mutually constrained by sliding slot, can freely up and down be slided along the knee wall；To make sound absorbing layer follow the downstream water surface Fluctuation and slide up and down, the noise above the water surface is absorbed always, while the water flow of lower section do not constituted and being stopped again.
The beneficial effects of the present invention are: when power station flood discharge, due to the impact direction of water body, make most of noise to Downstream transmitting, i.e., transmit to the sound-absorbing wall；And since the air-jet device is rectangular on the water surface between power station, sound-absorbing wall At high-speed flow layer；Transmit low frequency noise to sound-absorbing wall by the high-speed flow layer, to make low frequency noise in high-speed flow Frequency offset phenomena occurs in layer, frequency obviously increases, to be easy to be absorbed by the sound-absorbing wall.
Detailed description of the invention
Fig. 1 is the schematic diagram of this power station noise reduction system embodiment one.
Fig. 2 is the structural schematic diagram of sound-absorbing wall in this power station noise reduction system embodiment two.
Specific embodiment
Present invention will be further explained below with reference to the attached drawings and examples:
In embodiment one shown in Fig. 1, which includes the sound-absorbing wall 2 for being implemented in 1 downstream of power station, The sound-absorbing wall 2 is made of towards the one side in power station 1 poromerics；The top in the power station 1 is equipped with towards the sound-absorbing The air-jet device 3 of wall 2, when the air-jet device 3 is to 2 jet of sound-absorbing wall, on the water surface between power station 1, sound-absorbing wall 2 It is rectangular at high-speed flow layer 4；The high-speed flow layer 4 is spread gradually downward from air-jet device 3 to sound-absorbing wall 2, is made at sound-absorbing wall 2 Faster gas flow rate is all had in whole region above the water surface.
Above-mentioned power station noise reduction system, the air-jet device 3 provide pressure-air, the high pressure gas bag by high pressure gas bag By air-pump inflating.
In addition, sound insulation has been built in the two sides of the section between the power station 1 and sound-absorbing wall 2 respectively in the present embodiment one Band 5.
For above-mentioned power station noise reduction system, when 1 flood discharge of power station, due to the impact direction of water body, make most of make an uproar Sound downstream transmits, i.e., transmits to the sound-absorbing wall 2；And the water due to the air-jet device 3 between power station 1, sound-absorbing wall 2 High-speed flow layer 4 is formed above face；Transmit low frequency noise to sound-absorbing wall 2 by the high-speed flow layer, to make low frequency noise Frequency offset phenomena occurs in high-speed flow layer 4, frequency obviously increases, to be easy to be absorbed by the sound-absorbing wall 2.In addition, Since the air pressure in high-speed flow layer 4 is significantly lower than the air pressure in other regions, a part of noise transmitted obliquely is in height The downside of fast airflow layer 4 is easy to reflect, and finally transmits to sound-absorbing wall 2；Therefore, the high-speed flow layer 4 also there is constraint to make an uproar The effect of sound direction of transfer.
For the embodiment two of this power station noise reduction system, with embodiment one the difference is that: as shown in Fig. 2, The sound-absorbing wall 2 is in penetrating before and after water surface part below, does not constitute and stops to water flow；Specifically, the sound-absorbing wall 2 includes Knee wall 21 and sound absorbing layer 22；The knee wall 21 is made of concrete or steel construction grid, and front and back is penetrating；The sound absorbing layer 22 By density be less than water light microporous material constitute, in the width rectangle equal with the knee wall 21, and with the support Wall 21 is constrained by 23 phase of sliding slot, can freely up and down be slided along the knee wall 21；To make sound absorbing layer 22 follow the downstream water surface Fluctuation and slide up and down, the noise above the water surface is absorbed always, while the water flow of lower section do not constituted and being stopped again.
The foregoing is merely presently preferred embodiments of the present invention, is not intended to limit the invention, it is all in spirit of the invention and Within principle, made any modification, equivalent replacement be should all be included in the protection scope of the present invention.

Claims (1)

1. a kind of sound-absorbing wall is used for power station noise reduction system, is implemented in power station (1) downstream, the sound-absorbing wall (2) is towards water power The one side of (1) of standing is made of poromerics；The top of the power station (1) is equipped with the air-jet device towards the sound-absorbing wall (2) (3), when air-jet device (3) Xiang Suoshu sound-absorbing wall (2) jet, above the water surface between power station (1), sound-absorbing wall (2) It is formed high-speed flow layer (4)；The air-jet device (3) provides pressure-air by high pressure gas bag, and the high pressure gas bag is filled by air pump Gas；
Sound insulation band (5) have been built in the two sides of section between the power station (1) and sound-absorbing wall (2) respectively；
The sound-absorbing wall (2) is in penetrating before and after water surface part below, does not constitute and stops to water flow.
CN201710754355.3A 2016-03-28 2016-03-28 Sound-absorbing wall Active CN107489133B (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201710754355.3A CN107489133B (en) 2016-03-28 2016-03-28 Sound-absorbing wall

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610178844.4A CN105804025B (en) 2016-03-28 2016-03-28 Power station noise reduction system
CN201710754355.3A CN107489133B (en) 2016-03-28 2016-03-28 Sound-absorbing wall

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CN201610178844.4A Division CN105804025B (en) 2016-03-28 2016-03-28 Power station noise reduction system

Publications (2)

Publication Number Publication Date
CN107489133A CN107489133A (en) 2017-12-19
CN107489133B true CN107489133B (en) 2019-07-05

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CN201610178844.4A Active CN105804025B (en) 2016-03-28 2016-03-28 Power station noise reduction system
CN201710754355.3A Active CN107489133B (en) 2016-03-28 2016-03-28 Sound-absorbing wall

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CN201610178844.4A Active CN105804025B (en) 2016-03-28 2016-03-28 Power station noise reduction system

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Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105804025B (en) * 2016-03-28 2017-11-03 姜媅怡 Power station noise reduction system
CN108978603B (en) * 2018-05-31 2020-03-10 国网新源控股有限公司回龙分公司 Noise reduction system for hydropower station
CN108958099A (en) * 2018-05-31 2018-12-07 国网新源控股有限公司回龙分公司 A kind of power station automatic running monitoring system and method
CN108951573B (en) * 2018-06-27 2020-08-21 国网河南省电力公司平顶山供电公司 Noise reduction system for small and medium hydropower station
CN108914894B (en) * 2018-06-29 2020-07-14 裴春峰 Noise reduction device for hydropower station
CN110984686B (en) * 2019-11-13 2023-04-07 招商局生态环保科技有限公司 Boundary noise processing system for transformer noise reduction barrier
CN110939037B (en) * 2019-12-10 2021-11-30 聊城市瀚格智能科技有限公司 Biological spanning corridor based on ecological corridor construction

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DE102012107367A1 (en) * 2012-08-10 2014-02-13 AHA Management AG Protection device for protecting person against sound i.e. impact sound, in building, has honeycomb structure attached to sound generator or sound transmitter and comprising foil strips, which are arranged one above other
CN103807561A (en) * 2012-11-14 2014-05-21 中国石油天然气股份有限公司 Customized built-in anti-blockage denoising device for natural gas pipeline
CN204551524U (en) * 2014-12-18 2015-08-12 洛阳双瑞橡塑科技有限公司 A kind of anechoic tank, packaged type absorbs sound partition wall
CN104895024A (en) * 2015-06-12 2015-09-09 国家电网公司 Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall
CN204664000U (en) * 2015-03-21 2015-09-23 重庆东宏鑫科技有限公司 A kind of twayblade denoising draught fan
CN105804025A (en) * 2016-03-28 2016-07-27 钱月珍 Noise reducing system of hydropower station

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JPS5729722A (en) * 1980-07-24 1982-02-17 Mitsubishi Heavy Ind Ltd Preventing method for fall shock noise of water flowing over overflow type sluice gate
JP3356746B2 (en) * 1999-12-15 2002-12-16 征義 伊藤 Flow demagnetization silencer
CN100533033C (en) * 2005-05-10 2009-08-26 金坛市塑料厂 Float-type drop energy-eliminating noise-reducing device
CN202793069U (en) * 2012-07-20 2013-03-13 浙江东发环保工程有限公司 Noise elimination and reduction device for large natural ventilation cooling tower of thermal power plant

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102012107367A1 (en) * 2012-08-10 2014-02-13 AHA Management AG Protection device for protecting person against sound i.e. impact sound, in building, has honeycomb structure attached to sound generator or sound transmitter and comprising foil strips, which are arranged one above other
CN103807561A (en) * 2012-11-14 2014-05-21 中国石油天然气股份有限公司 Customized built-in anti-blockage denoising device for natural gas pipeline
CN204551524U (en) * 2014-12-18 2015-08-12 洛阳双瑞橡塑科技有限公司 A kind of anechoic tank, packaged type absorbs sound partition wall
CN204664000U (en) * 2015-03-21 2015-09-23 重庆东宏鑫科技有限公司 A kind of twayblade denoising draught fan
CN104895024A (en) * 2015-06-12 2015-09-09 国家电网公司 Combined protective sound lock device of pumped storage power station and manufacturing method of sound insulation wall
CN105804025A (en) * 2016-03-28 2016-07-27 钱月珍 Noise reducing system of hydropower station

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Publication number Publication date
CN105804025B (en) 2017-11-03
CN107489133A (en) 2017-12-19
CN105804025A (en) 2016-07-27

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