CN111074860A - Double-layer vibration absorption and noise elimination pond wall surface structure - Google Patents
Double-layer vibration absorption and noise elimination pond wall surface structure Download PDFInfo
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- CN111074860A CN111074860A CN202010017706.4A CN202010017706A CN111074860A CN 111074860 A CN111074860 A CN 111074860A CN 202010017706 A CN202010017706 A CN 202010017706A CN 111074860 A CN111074860 A CN 111074860A
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- wall surface
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- 238000010521 absorption reaction Methods 0.000 title claims abstract description 33
- 238000003379 elimination reaction Methods 0.000 title claims abstract description 12
- 230000008030 elimination Effects 0.000 title claims abstract description 10
- 239000004576 sand Substances 0.000 claims abstract description 33
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 24
- 239000002184 metal Substances 0.000 claims description 29
- 239000000463 material Substances 0.000 claims description 5
- 230000030279 gene silencing Effects 0.000 abstract description 8
- 238000005516 engineering process Methods 0.000 abstract description 2
- 230000009102 absorption Effects 0.000 description 18
- 230000021715 photosynthesis, light harvesting Effects 0.000 description 17
- 238000000034 method Methods 0.000 description 7
- 239000008187 granular material Substances 0.000 description 4
- 230000008569 process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 230000007613 environmental effect Effects 0.000 description 3
- 230000001939 inductive effect Effects 0.000 description 3
- 230000004044 response Effects 0.000 description 3
- 239000000243 solution Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 238000013329 compounding Methods 0.000 description 1
- 239000004020 conductor Substances 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000011065 in-situ storage Methods 0.000 description 1
- 238000001746 injection moulding Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 229920003023 plastic Polymers 0.000 description 1
- 230000009103 reabsorption Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 238000011144 upstream manufacturing Methods 0.000 description 1
Images
Classifications
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- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B15/00—Layered products comprising a layer of metal
- B32B15/04—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material
- B32B15/06—Layered products comprising a layer of metal comprising metal as the main or only constituent of a layer, which is next to another layer of the same or of a different material of natural rubber or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B25/00—Layered products comprising a layer of natural or synthetic rubber
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B3/00—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form
- B32B3/26—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer
- B32B3/30—Layered products comprising a layer with external or internal discontinuities or unevennesses, or a layer of non-planar shape; Layered products comprising a layer having particular features of form characterised by a particular shape of the outline of the cross-section of a continuous layer; characterised by a layer with cavities or internal voids ; characterised by an apertured layer characterised by a layer formed with recesses or projections, e.g. hollows, grooves, protuberances, ribs
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
- B32B7/04—Interconnection of layers
- B32B7/12—Interconnection of layers using interposed adhesives or interposed materials with bonding properties
-
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2307/00—Properties of the layers or laminate
- B32B2307/10—Properties of the layers or laminate having particular acoustical properties
- B32B2307/102—Insulating
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2419/00—Buildings or parts thereof
-
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Building Environments (AREA)
Abstract
The invention discloses a double-vibration-absorption silencing pond wall surface structure, and relates to a silencing technology of a silencing pond. The absorption pond comprises an absorption pond, wherein the side wall of the absorption pond is of a hollow structure, a side wall panel is fixedly arranged on one side in the water-approaching direction, graded sand and gravel are filled in the hollow side wall to form a granular structure, an elastic rubber layer is fixed on one side, in contact with water, of the side wall panel, and holes are formed in the elastic rubber layer. The granular structure in the hollow side wall and the side wall panel with the elastic rubber layer with holes form a double vibration absorption and noise elimination structure. The double-layer vibration absorption, noise elimination and dissipation wall surface structure provided by the invention weakens the noise generated when the dissipation pool eliminates flood discharge and dissipation.
Description
Technical Field
The invention relates to a noise reduction technology of a stilling pool, in particular to a double-layer vibration absorption noise reduction stilling pool wall surface structure.
Background
The hydropower station is a large hydropower station located on the Jinsha river, and after the hydropower station is close to the county, the huge flood discharge power causes flood discharge noise after the hydropower station operates, and the flood discharge noise further induces vibration of the county and city residential buildings, so that the problem of environmental noise is brought, and the life of surrounding residents is influenced. China is rich in hydropower in southwest, and hydropower stations built later are mainly in southwest. Hydropower stations built in the southwest high mountain canyon area are near the station site or may be villages, towns and residential sites; or may have a mountain of great snow; or a mountain in a critical stable state is present in the vicinity (since there are not a few mountains in a critical stable state in nature, there is a collapse). If the noise intensity is large, the environmental noise may cause the following problems: (1) can induce the vibration of the surrounding hydraulic structure; (2) inducing vibration in industrial and residential buildings; (3) noise pollution is caused to residential areas, and life is influenced; (4) inducing mountain avalanche; (5) inducing the collapse of rocks and mountain bodies in a critical stable state to form geological disasters.
Previous hydroelectric power plants have not been able to present, or have not been concerned with, the above problems and thus have never had a similar solution to noise cancellation. However, the requirement of people on the environment is higher and higher, so how to reduce noise and harm brought by the noise becomes an important problem.
Disclosure of Invention
The invention aims to provide a double-layer vibration-absorption noise-elimination pond wall surface structure, which aims to solve the problems in the prior art and weaken the noise generated when the absorption pond eliminates flood discharge and energy dissipation.
In order to achieve the purpose, the invention provides the following scheme:
the invention provides a double-layer vibration-absorption silencing pond wall surface structure which is used for building a pond side wall. The side wall of the absorption pond is hollow, a side wall panel is fixedly arranged on the side wall of the absorption pond in the water-approaching direction, a granular material structure is filled between the side wall panel and the fixed side wall of the absorption pond, the granular material structure filled in the hollow wall surface is graded sand and gravel, and the granular material structure forms a first reabsorption vibration noise elimination structure; the elastic rubber layer is fixedly connected to one side of the panel in the water-facing direction and fixed on the metal sheet, and holes are formed in the elastic rubber layer and are of a secondary vibration absorption and noise elimination structure.
Optionally, the granular structure is graded sand and gravel, and the graded sand and gravel comprise fine sand, medium sand, coarse sand and gravel.
Optionally, the panel comprises a plurality of metal sheets; the metal sheets are horizontally and sequentially stacked, and are fixed on the fixing piles on the side walls of the stilling pond through bolts.
Optionally, the elastic rubber layer is a prefabricated rubber panel, and a plurality of holes are arranged on the prefabricated rubber panel; the holes are located on the side, close to water, of the prefabricated rubber panel, namely the side in contact with the water.
Optionally, symmetrical flanges are arranged at the upper end and the lower end of the metal sheet, and the flanges and the metal sheet are arranged at an angle of 90 degrees; and a water stopping material is arranged between the flanges between the two adjacent metal sheets.
Compared with the prior art, the invention has the following technical effects:
the double-layer vibration absorption, noise elimination and dissipation pond wall surface designed by the invention adopts a double-layer structure to absorb noise generated by flood discharge and energy dissipation so as to increase the effect of noise absorption: an elastic rubber layer, namely elastic rubber or an elastic cushion layer is attached to one side of the absorption pond in the direction close to the water surface (the wall surface in contact with the water), namely the surface of the elastic metal panel, and small holes with certain depth are densely distributed on the elastic rubber or the elastic cushion layer, so that the echo of noise can be reduced, and the metal panel can be prevented from being rusted; thirdly, the rear side of the panel is provided with a granular structure of graded sand and gravel, and granular materials with different grain diameters have different natural frequencies, so that the acoustic response is facilitated, and the efficiency is increased.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without inventive exercise.
FIG. 1 is a schematic view of the wall surface structure of a double-layer vibration-absorbing, noise-eliminating and force-reducing pond of the present invention;
FIG. 2 is a schematic structural diagram of a panel of the double-layer vibration-absorbing, noise-eliminating and force-reducing wall surface structure of the present invention;
FIG. 3 is a schematic view of the panel A-A of the double-layer vibration-absorbing, noise-eliminating and force-reducing wall structure of the present invention;
FIG. 4 is a schematic view of the invention in use in underflow energy dissipation;
FIG. 5 is a schematic diagram of the present invention applied to trajectory or drop energy dissipation;
wherein, 1 is a stilling pool, 2 is a side wall panel, 3 is a granular body structure, 4 is a metal sheet, 5 is a flange, 6 is an elastic rubber layer, and 7 is a hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The invention aims to provide a double-layer vibration-absorption noise-elimination pond wall surface structure, which aims to solve the problems in the prior art and weaken the noise generated when the absorption pond eliminates flood discharge and energy dissipation.
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in further detail below.
The stilling pond is an energy dissipation building of a hydropower station, and a water body energy dissipation area is formed by excavating or utilizing a building structure, so that most of redundant water body kinetic energy is dissipated in the stilling pond during flood discharge. The stilling pool comprises a stilling pool.
The flood discharge noise refers to the noise generated in the stilling pond during flood discharge and energy dissipation, and is an environmental noise generated in the energy dissipation process. This noise is always present, regardless of the energy dissipation method used. Thus, noise cancellation is beneficial to both the project itself and the environment. The stilling pool is an open space, noise generated during flood discharge and energy dissipation can be transmitted to the periphery, particularly long wave, the wavelength of the long wave is equivalent to the scale of a residential building structure, diffraction is easy to occur and the long wave can be transmitted continuously, and therefore, the energy consumption is an effective method for reducing the noise. Based on the above, the invention provides a double vibration-absorbing silencing pond wall surface structure, as shown in fig. 1-3, comprising a silencing pond 1, wherein a side wall panel 2 is fixedly arranged on the side wall of the water surface of the silencing pond 1, a granular body structure 3 is filled between the side wall panel 2 and the fixed side wall of the silencing pond 1, an elastic rubber layer 6 is fixedly connected to one side (outer side) of the side wall panel 2 far away from the granular body structure 3, a hole 7 is arranged on the elastic rubber layer 6, and the hole 7 is arranged on the water surface. The granular structure 3 is graded sand and gravel, and comprises fine sand, medium sand, coarse sand and gravel. The reason for adding the gravel is that the flow noise contains low frequency noise waves, and the natural frequency of vibration of the gravel is lower than that of the sand, which is advantageous for absorbing the low frequency noise.
The side wall panel 2 comprises a plurality of metal sheets 4; the plurality of metal sheets 4 are horizontally and sequentially stacked, and the metal sheets 4 are fixed on the fixing piles on the side walls of the stilling pool 1 through bolts. The elastic rubber layer 6 is a prefabricated rubber panel, and a plurality of holes 7 are arranged on the prefabricated rubber panel; the holes 7 are positioned on one side of the prefabricated rubber panel far away from the metal sheet 4, namely the holes are contacted with the water body of the stilling pool.
The granular structure 3 can consume the energy of the transmitted vibration and sound wave, the vibration and the sound wave generated in the absorption pond 1 have different frequencies, and the sand grains with different grain diameters have different natural frequencies, so the input response to different frequencies is different, the frequency is close to facilitate the resonance, the generated resonance is beneficial to generating friction and consuming noise energy. In order to dissipate the vibration and sound energy as quickly as possible, multiple configurations of fine sand are required. The fine sand consumes energy at a higher rate than the coarse sand because the fine sand is susceptible to micro-vibration, and energy is converted into heat energy to be consumed in the process of micro-vibration. The side wall panel 2 comprises a plurality of metal sheets 4; the metal sheet 4 saves materials, and simultaneously ensures that micro-vibration can occur under the action of strong turbulent flow of water flow, so that sound waves of the water flow are transmitted to the rear granular structure 3; the plurality of metal sheets 4 are horizontally and sequentially stacked, and the metal sheets 4 are fixed on the fixing piles on the side walls of the stilling pool 1 through bolts. The upper end and the lower end of the metal sheet 4 are both provided with symmetrical flanges 5, and the flanges 5 and the metal sheet 4 are arranged at an angle of 90 degrees.
The propagation of acoustic waves can cause vibrations in structures, and objects with similar frequencies can even resonate, consuming energy, whether vibrating or resonating. Therefore, in the energy dissipation process, the energy of the strongly turbulent and billowing water body is transmitted to the wall surface of the stilling pool 1, and in the invention, the elastic wall surface is designed and the graded sand layer is distributed to absorb and consume the vibration and noise energy transmitted by the water body in the stilling pool 1. The elastic wall acts as a secondary conductor, which further transfers energy to the granular structure 3. The granular structure 3 is a graded sand layer and gravel, which means that the sand contains fine sand, medium sand and coarse sand, and sand grains with different diameters can correspondingly and efficiently absorb noise and vibration energy with the closest frequency. The elastic rubber layer 6 has good elasticity, the elastic rubber layer 6 is provided with a hole 7 with a certain depth, and the elastic rubber layer 6 can be prefabricated and then adhered to the metal sheet 4; the resilient rubber layer 6 may be replaced by other resilient plastics material which may be sprayed onto the sheet metal 4 by in situ compounding or may be moulded onto the sheet metal 4 by injection moulding. In any material, the elastic rubber layer 6 is provided with holes 7. The granular structure 3 in the hollow side wall and the panel of the elastic rubber layer with the holes jointly form a double vibration absorption and noise elimination structure, and the double structure is adopted to absorb noise generated by flood discharge and energy dissipation so as to increase the effect of noise absorption of the wall surface of the stilling pool; secondly, attaching an elastic rubber or an elastic cushion layer on the near water surface (the wall surface contacted with water) of the stilling pool, namely the surface of the elastic metal panel, and densely distributing holes 7 with certain depth on the elastic rubber or the elastic cushion layer, so that the echo of noise can be reduced, and the metal sheet 4 can be prevented from being rusted; thirdly, the rear side of the side wall panel 2 is a granular structure of graded sand and gravel, so that frequency response is facilitated, and efficiency is increased.
As shown in fig. 4 and 5, the invention is mainly applied to the places where the noise control is needed in the flood discharge and energy dissipation of the hydropower station. Possible suitable energy dissipation means are: high water head large flow underflow energy dissipation stilling pond and high water head large flow trajectory and drop stilling pond. The structure of the invention is arranged at the downstream side B of the stilling pond, and the water depth at the upstream side A is not required to be arranged. The invention absorbs the noise generated by flood discharge and energy dissipation by the absorption pond; the wall surface structure of the absorption pond 1 is a double-vibration absorption and noise elimination structure with a granular body structure 3 and an elastic rubber layer 6, namely the wall surface contacting with water is an elastic structure capable of generating micro-amplitude vibration, and the former wall surface is a rigid wall surface; the rear side of the panel is of a graded granular structure, namely graded sand and gravel, so that noise can be effectively eliminated. When the stilling pool works, the energy transfer process is as follows: the energy of noise and vibration of the turbulent water body, the elastic wall surface of the absorption pond, the graded sand layer and the gravels generate vibration and rub against each other, and the transmitted energy is dissipated by the vibrated sand particles and the gravels.
The principle and the implementation mode of the invention are explained by applying a specific example, and the description of the embodiment is only used for helping to understand the method and the core idea of the invention; meanwhile, for a person skilled in the art, according to the idea of the present invention, the specific embodiments and the application range may be changed. In view of the above, the present disclosure should not be construed as limiting the invention.
Claims (5)
1. The utility model provides a double is inhaled and is inhaled noise elimination pool wall structure which characterized in that: the absorption pond is characterized by comprising an absorption pond, wherein the side wall of the absorption pond is of a hollow structure, a side wall panel is fixedly arranged on the side wall of the absorption pond in the water-approaching direction, a granular structure is arranged between the side wall panel and the fixed side wall of the absorption pond, one side of the panel in the water-approaching direction is fixedly connected with an elastic rubber layer, and a hole is formed in the elastic rubber layer.
2. The double vibration-absorbing noise-eliminating pond wall surface structure of claim 1, wherein: the granular structure is graded sand and gravel, and comprises fine sand, medium sand, coarse sand and gravel.
3. The double vibration-absorbing noise-eliminating pond wall surface structure of claim 1, wherein: the side wall panel comprises a plurality of metal sheets; the metal sheets are horizontally and sequentially stacked, and are fixed on the fixing piles on the side walls of the stilling pond through bolts.
4. The double vibration-absorbing noise-eliminating pond wall surface structure according to claim 3, characterized in that: the elastic rubber layer is a prefabricated rubber panel, and a plurality of holes are formed in the prefabricated rubber panel; the holes are located on the side, close to water, of the prefabricated rubber panel.
5. The double vibration-absorbing noise-eliminating pond wall surface structure according to claim 3, characterized in that: symmetrical flanges are arranged at the upper end and the lower end of the metal sheet, and the flanges and the metal sheet are arranged at 90 degrees; and a water stopping material is arranged between the flanges between the two adjacent metal sheets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017706.4A CN111074860A (en) | 2020-01-08 | 2020-01-08 | Double-layer vibration absorption and noise elimination pond wall surface structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010017706.4A CN111074860A (en) | 2020-01-08 | 2020-01-08 | Double-layer vibration absorption and noise elimination pond wall surface structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111074860A true CN111074860A (en) | 2020-04-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010017706.4A Pending CN111074860A (en) | 2020-01-08 | 2020-01-08 | Double-layer vibration absorption and noise elimination pond wall surface structure |
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Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100793074B1 (en) * | 2007-09-06 | 2008-01-10 | 김부열 | Panel for construction for reducing noise between floors having air purification and sterilizing functions |
| CN101148867A (en) * | 2007-10-19 | 2008-03-26 | 中国水利水电科学研究院 | Flood discharging method and flood discharging tunnel employing rotational flow and strong moisture mixing energy dissipation |
| CN203024612U (en) * | 2013-01-21 | 2013-06-26 | 哈尔滨宇神科技有限公司 | System capable of improving cooling efficiency and lowering noise of water tower |
| CN104452691A (en) * | 2014-12-29 | 2015-03-25 | 中国电建集团中南勘测设计研究院有限公司 | Near-surface submersible submerged jet flow energy dissipation structure |
| CN104480911A (en) * | 2014-10-24 | 2015-04-01 | 河海大学 | Flexible foundation energy dissipater structure |
| CN206220046U (en) * | 2016-11-14 | 2017-06-06 | 三峡大学 | A kind of flip trajectory bucket experimental rig for being applied to cushion pool |
| CN109083109A (en) * | 2018-09-29 | 2018-12-25 | 吴帆 | It is a kind of multistage energy dissipating and infiltration mud-rock flow blocking dam and its method of construction |
| CN212103958U (en) * | 2020-01-08 | 2020-12-08 | 清华大学 | Double-layer vibration absorption and noise elimination pond wall surface structure |
-
2020
- 2020-01-08 CN CN202010017706.4A patent/CN111074860A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100793074B1 (en) * | 2007-09-06 | 2008-01-10 | 김부열 | Panel for construction for reducing noise between floors having air purification and sterilizing functions |
| CN101148867A (en) * | 2007-10-19 | 2008-03-26 | 中国水利水电科学研究院 | Flood discharging method and flood discharging tunnel employing rotational flow and strong moisture mixing energy dissipation |
| CN203024612U (en) * | 2013-01-21 | 2013-06-26 | 哈尔滨宇神科技有限公司 | System capable of improving cooling efficiency and lowering noise of water tower |
| CN104480911A (en) * | 2014-10-24 | 2015-04-01 | 河海大学 | Flexible foundation energy dissipater structure |
| CN104452691A (en) * | 2014-12-29 | 2015-03-25 | 中国电建集团中南勘测设计研究院有限公司 | Near-surface submersible submerged jet flow energy dissipation structure |
| CN206220046U (en) * | 2016-11-14 | 2017-06-06 | 三峡大学 | A kind of flip trajectory bucket experimental rig for being applied to cushion pool |
| CN109083109A (en) * | 2018-09-29 | 2018-12-25 | 吴帆 | It is a kind of multistage energy dissipating and infiltration mud-rock flow blocking dam and its method of construction |
| CN212103958U (en) * | 2020-01-08 | 2020-12-08 | 清华大学 | Double-layer vibration absorption and noise elimination pond wall surface structure |
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