CN111155477B - Air curtain noise reduction device for offshore wind power pasture - Google Patents
Air curtain noise reduction device for offshore wind power pasture Download PDFInfo
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- CN111155477B CN111155477B CN201911376392.0A CN201911376392A CN111155477B CN 111155477 B CN111155477 B CN 111155477B CN 201911376392 A CN201911376392 A CN 201911376392A CN 111155477 B CN111155477 B CN 111155477B
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- waterproof layer
- bubble
- curtain
- air curtain
- noise reduction
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B1/00—Equipment or apparatus for, or methods of, general hydraulic engineering, e.g. protection of constructions against ice-strains
- E02B1/003—Mechanically induced gas or liquid streams in seas, lakes or water-courses for forming weirs or breakwaters; making or keeping water surfaces free from ice, aerating or circulating water, e.g. screens of air-bubbles against sludge formation or salt water entry, pump-assisted water circulation
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K61/00—Culture of aquatic animals
- A01K61/60—Floating cultivation devices, e.g. rafts or floating fish-farms
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- A—HUMAN NECESSITIES
- A01—AGRICULTURE; FORESTRY; ANIMAL HUSBANDRY; HUNTING; TRAPPING; FISHING
- A01K—ANIMAL HUSBANDRY; CARE OF BIRDS, FISHES, INSECTS; FISHING; REARING OR BREEDING ANIMALS, NOT OTHERWISE PROVIDED FOR; NEW BREEDS OF ANIMALS
- A01K63/00—Receptacles for live fish, e.g. aquaria; Terraria
- A01K63/04—Arrangements for treating water specially adapted to receptacles for live fish
- A01K63/042—Introducing gases into the water, e.g. aerators, air pumps
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- E—FIXED CONSTRUCTIONS
- E02—HYDRAULIC ENGINEERING; FOUNDATIONS; SOIL SHIFTING
- E02B—HYDRAULIC ENGINEERING
- E02B15/00—Cleaning or keeping clear the surface of open water; Apparatus therefor
- E02B15/04—Devices for cleaning or keeping clear the surface of open water from oil or like floating materials by separating or removing these materials
- E02B15/08—Devices for reducing the polluted area with or without additional devices for removing the material
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- 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
- Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
- Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
- Y02A40/80—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in fisheries management
- Y02A40/81—Aquaculture, e.g. of fish
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- 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
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P60/00—Technologies relating to agriculture, livestock or agroalimentary industries
- Y02P60/60—Fishing; Aquaculture; Aquafarming
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- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Environmental Sciences (AREA)
- Civil Engineering (AREA)
- Structural Engineering (AREA)
- Marine Sciences & Fisheries (AREA)
- Animal Husbandry (AREA)
- Biodiversity & Conservation Biology (AREA)
- Mechanical Engineering (AREA)
- Environmental & Geological Engineering (AREA)
- Zoology (AREA)
- Wind Motors (AREA)
Abstract
The invention discloses an air curtain noise reduction device for an offshore wind power pasture, which comprises an air curtain arranged around the inner side of a steel pipe pile, wherein a culture area is positioned in the air curtain; the bubble curtain is connected with the steel pipe pile; the bubble curtain comprises an inner waterproof layer and an outer waterproof layer, a hollow structure is formed between the inner waterproof layer and the outer waterproof layer, a bubble generating device is arranged between the inner waterproof layer and the outer waterproof layer, and the bubble generating device is located at the lower portion of the bubble curtain. The air curtain noise reduction device provided by the invention can reduce vibration and noise, can continuously supply oxygen to the culture area, and improves the survival condition of fish school.
Description
Technical Field
The invention belongs to the technical field of offshore wind power farms, and particularly relates to an air curtain noise reduction device for an offshore wind power pasture.
Background
At present, offshore wind power technology is rapidly developed in China, and in order to fully utilize ocean resources, offshore wind power is usually combined with offshore pasture cultivation at present, for example, Chinese patent document with publication number CN106172122A discloses an offshore wind power plant-based marine cultivation method, which comprises the following steps: a. inserting a single-pile type wind power foundation to form a wind power field area in a surrounding area shape, and fixing culture facilities among the wind power foundations; b. an equipment platform is arranged at the center of the wind power field area, reinforcing rods are connected between the equipment platform and each wind power foundation, and the algae cultivation device is fixed below the reinforcing rods to form an upper cultivation area; c. fixing the fish culture net cage below the reinforcing rods to form a middle-layer culture area; d. arranging the shellfish culture net cages on each single pile of the wind power foundation to form a lower layer culture area; e. placing different seedlings on the algae cultivation device according to seasons; f. putting the fry into a fish culture box, and taking algae falling from the upper culture area as bait; g. putting the shellfish into a shellfish culture box, and taking residual algae eaten by fishes and fish excrement as baits; h. an artificial fish reef is placed at the bottom of the wind power plant area and used for bottom sowing of shellfish, fish or shrimps and other organisms.
At present, offshore wind turbine foundations at home and abroad mostly adopt foundation forms such as single piles, tripods, jackets and the like, the foundation forms mostly need to be subjected to underwater pile driving construction, high decibel noise generated by the underwater pile driving construction seriously affects living organisms around the sea area, various noise reduction devices aiming at noise generated in the construction process are disclosed in the prior art, for example, a Chinese patent with publication number of CN207998847U discloses an offshore wind power pile sinking noise reduction device, which comprises a pile driving hammer, wherein the pile driving hammer comprises a water storage barrel, a combustion chamber and a pile cap, the pile cap is fixedly arranged below the water storage barrel, the combustion chamber is fixedly arranged at the bottom end inside the water storage barrel, two separation strips are fixedly arranged between the combustion chamber and the barrel wall at the bottom of the water storage barrel, the top end of the water storage barrel is provided with a water inlet, and the bottom end of the water storage barrel is provided with a water outlet, the combustion chamber top is provided with business turn over dual-purpose pipeline of gas, business turn over dual-purpose pipeline other end of giving vent to anger passes the water storage bucket, stretches out outside the water storage bucket, inside still is provided with some firearm in the top position of combustion chamber, be provided with some firearm switch on the water storage bucket outer wall.
Meanwhile, noise and vibration brought by the wind power device can influence fish schools in the culture area, seriously damage and interfere marine organisms, and destroy the balance of a marine ecosystem. At present, no relevant device for reducing the influence of noise and vibration of the installed wind power device on a culture area exists.
Disclosure of Invention
The invention aims to disclose an air curtain noise reduction device for an offshore wind power farm, which can reduce vibration and noise, can continuously supply oxygen for a culture area and improve the survival condition of fish schools.
The invention provides the following technical scheme:
an air curtain noise reduction device for an offshore wind power pasture comprises an air bubble curtain arranged around the inner side of a steel pipe pile, wherein a culture area is positioned in the air bubble curtain; the bubble curtain is connected with the steel pipe pile; the bubble curtain comprises an inner waterproof layer and an outer waterproof layer, a hollow structure is formed between the inner waterproof layer and the outer waterproof layer, a bubble generating device is arranged between the inner waterproof layer and the outer waterproof layer, and the bubble generating device is located at the lower portion of the bubble curtain.
The air curtain noise reduction device provided by the invention isolates the steel pipe pile outside the culture area through the air bubble curtain, the air bubbles generated by the air bubble generating device are distributed in the hollow structure formed between the inner waterproof layer and the outer waterproof layer, and the formed air bubble curtain can be used as a barrier to absorb shock and reduce noise for the culture area and protect fish schools to a certain extent.
The top of bubble curtain is enclosed construction, the bottom and the breed platform detachably of bubble curtain are connected.
The outer waterproof layer is fixed on the steel pipe pile in a point contact mode; the bottom of the inner waterproof layer is fixed on the culture platform.
Preferably, the outer waterproof layer is fixed on the steel pipe pile in a point contact mode. Fixed through the mode of point contact, can further alleviate the noise and the vibration that the steel-pipe pile produced and to the influence of bubble curtain, and then can be better to breeding the district and fall the noise. The point contact method may be a method of fixing the steel pipe pile to the upper and lower sides with a plurality of bolts or screws.
Preferably, a plurality of bubble holes are formed in the middle upper portion of the inner waterproof layer. The middle upper part of the inner waterproof layer is provided with a bubble hole, so that bubbles generated in the bubble curtain can conveniently enter the culture area in the rising process, and oxygen is supplied to the culture area. The diameters of the plurality of bubble holes are the same or different.
The culture platform is of a net structure or/and a plurality of net areas are arranged on the side surface of the bubble curtain. The net-shaped area is arranged on the culture platform with the net-shaped structure or on the side surface of the bubble curtain, so that water is changed inside and outside the culture area conveniently, water flow is kept, and a part of marine garbage can be prevented from entering the culture area.
The inner waterproof layer and the outer waterproof layer are made of plastic cloth.
Preferably, the bubble generating means comprises a perforated pipe connected to the air compressor, the perforated pipe being circumferentially arranged between the inner waterproof layer and the outer waterproof layer. The perforated pipeline connected with the air compressor generates bubbles at a certain initial speed, the bubbles move upwards and are distributed between the inner waterproof layer and the outer waterproof layer, and the formed bubble curtain can serve as a barrier to reduce vibration and noise of the culture area and protect fish schools to a certain extent. The aeration speed can be controlled by controlling the air compressor to adjust the density of the bubbles in the bubble curtain.
The invention provides an air curtain noise reduction device (bubble curtain device) for improving the operation noise vibration of a wind power device in an ocean wind power farm and the influence of marine floating particles on fish schools in a culture area. The air curtain noise reduction device provided by the invention is multipurpose, can reduce vibration and noise, can continuously supply oxygen to the culture area, and improves the survival condition of fish school.
Therefore, the invention has the following advantages: (1) through the bubble curtain that forms, play the vibration/noise reduction's to the spud leg of steel-pipe pile effect. (2) The bubble holes are arranged on the inner waterproof layer, so that the function of supplying oxygen to the culture area is achieved. (3) This device of making an uproar falls in air curtain can block floating particulate matter to a certain extent, alleviates the pollution of marine rubbish to breeding the district.
Drawings
FIG. 1 is a schematic structural diagram of an air curtain noise reduction device provided by the present invention;
FIG. 2 is a bottom partially schematic view of an air curtain noise reducer provided by the present invention;
FIG. 3 is a top partially schematic view of an air curtain noise reducer provided by the present invention;
wherein: 1, a bearing platform; 2, steel pipe piles; 3, bubble holes; 4 a mesh zone; 5, a culture platform; 6 a bubble generation area; 7, outer plastic cloth; 8 inner layer plastic cloth.
Detailed Description
The invention is further described below with reference to the accompanying drawings and the detailed description.
As shown in fig. 1, 2 and 3, the offshore wind power plant includes a bearing platform 1 and 8 steel pipe piles 2 supporting the bearing platform, and a culture platform 5 is provided below the bearing platform 1. The air curtain noise reduction device provided by the invention comprises a bubble curtain, wherein the bubble curtain comprises an outer layer plastic cloth 7 and an inner layer plastic cloth 8 which are of an integrated structure, a hollow structure is formed between the outer layer plastic cloth 7 and the inner layer plastic cloth 8, the top of the hollow structure is of a closed structure, and the bottom of the hollow structure is directly communicated with seawater; wherein, outer plastic cloth 7 is fixed on steel-pipe pile 2 through the mode of point contact, and inlayer plastic cloth 8 detachably fixes on breeding platform 5, and the breed district is located the bubble curtain. And a bubble generating device is arranged between the inner waterproof layer 8 and the outer waterproof layer 7 and is positioned in the bubble generating area 6 at the bottom of the bubble curtain, and bubbles generated by the bubble generating device rise to form the bubble curtain in the hollow structure.
As shown in figure 2, the side surface of the bubble curtain is provided with a plurality of net-shaped areas 4, which are convenient for the through flow inside and outside the culture area and keep the water flow. Another alternative embodiment is that the culture platform 5 is a net structure, which is convenient for through flow inside and outside the culture area and keeps water flow.
As shown in figure 3, a plurality of bubble holes 3 are arranged at the upper part of the inner plastic cloth 8, so that bubbles can enter a culture area in the rising process after being generated, and the oxygen supply function is realized.
The specific way of fixing the outer layer plastic cloth 7 on the steel pipe pile 2 in a point contact manner may be as follows: the outer layer plastic cloth 7 is fixed to the upper and lower parts of the steel-pipe pile 2 by, for example, bolts and screws.
In this embodiment, the bubble generating means comprises a perforated pipe connected to the air compressor, the perforated pipe being arranged circumferentially between the inner waterproof layer 8 and the outer waterproof layer 7.
The technical scheme provided by the invention is based on the multi-pile bearing platform foundation as a support, provides the bubble curtain shock absorption and noise reduction device, fully protects ocean resources in the offshore wind power farm, can greatly reduce the influence of vibration transmitted by the pile on fish schools, and meanwhile, the multi-pile bearing platform foundation can also provide a safer environment for an offshore culture area, and simultaneously improves economic benefits and ecological benefits.
Finally, it should be noted that: the above examples are only for illustrating the patented scheme of the invention and are not to be construed as limiting; although the present patent is described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art; it is to be understood that modifications may be made to the above-described arrangements in the embodiments or equivalents may be substituted for some of the features of the embodiments described above without departing from the spirit and scope of the present invention.
Claims (4)
1. An air curtain noise reduction device for an offshore wind power pasture is characterized by comprising an air curtain arranged around the inner side of a steel pipe pile, wherein a culture area is positioned in the air curtain; the bubble curtain is connected with the steel pipe pile; the bubble curtain comprises an inner waterproof layer and an outer waterproof layer, a hollow structure is formed between the inner waterproof layer and the outer waterproof layer, and a bubble generating device is arranged between the inner waterproof layer and the outer waterproof layer and is positioned at the lower part of the bubble curtain;
the top of the bubble curtain is of a closed structure, and the bottom of the bubble curtain is detachably connected with the culture platform;
the outer waterproof layer is fixed on the steel pipe pile in a point contact mode; the bottom of the inner waterproof layer is fixed on the culture platform;
the middle upper part of the inner waterproof layer is provided with a plurality of bubble holes;
the culture platform is of a net structure or/and a plurality of net areas are arranged on the side surface of the bubble curtain.
2. The air curtain noise reduction device for the offshore wind power farm according to claim 1, wherein the outer waterproof layer is fixed on the steel pipe pile by bolts and screws.
3. The air curtain noise reduction device for the offshore wind farm according to claim 1, wherein the inner waterproof layer and the outer waterproof layer are both made of plastic cloth.
4. The air curtain noise reduction device for offshore wind farm according to claim 1, wherein the bubble generating means comprises perforated pipes connected to an air compressor, said perforated pipes being circumferentially arranged between an inner waterproof layer and an outer waterproof layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376392.0A CN111155477B (en) | 2019-12-27 | 2019-12-27 | Air curtain noise reduction device for offshore wind power pasture |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911376392.0A CN111155477B (en) | 2019-12-27 | 2019-12-27 | Air curtain noise reduction device for offshore wind power pasture |
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| Publication Number | Publication Date |
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| CN111155477A CN111155477A (en) | 2020-05-15 |
| CN111155477B true CN111155477B (en) | 2021-04-06 |
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| CN201911376392.0A Active CN111155477B (en) | 2019-12-27 | 2019-12-27 | Air curtain noise reduction device for offshore wind power pasture |
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Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113053345B (en) * | 2021-03-12 | 2024-04-12 | 清研特材科技(洛阳)有限公司 | Water curtain/foamed aluminum composite noise reduction method and noise reduction device |
| CN115191387A (en) * | 2021-04-09 | 2022-10-18 | 中国电建集团华东勘测设计研究院有限公司 | Marine electric platform foundation structure of coupling aquaculture net case |
| CN114108679B (en) * | 2022-01-21 | 2022-04-12 | 中国海洋大学 | Integrated pile foundation equipment based on comprehensive utilization of offshore abandoned wind power and working method |
| NO20220502A1 (en) * | 2022-05-02 | 2023-11-03 | Oceantherm As | A method and apparatus providing cooling of seawater surfaces comprising a bubble curtain |
| CN115517206A (en) * | 2022-09-26 | 2022-12-27 | 浙江大学 | Method for realizing offshore wind farm fence culture device based on air curtain blocking device |
| CN116889207B (en) * | 2023-07-11 | 2024-03-19 | 山东大学 | Noise-reduction type artificial fish reef and offshore wind power and ocean pasture fusion system |
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| EP2431531A1 (en) * | 2010-09-17 | 2012-03-21 | N. prior energy GmbH | Method and device for producing a ramming assembly on a sea or lake bed |
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| EP2746462A2 (en) * | 2012-12-21 | 2014-06-25 | Maritime Offshore Group GmbH | Device and method for reducing the sound emissions when pile driving at sea |
| CN109076997A (en) * | 2018-09-27 | 2018-12-25 | 中国电建集团华东勘测设计研究院有限公司 | A kind of aquaculture net cage equipment based on offshore wind turbine High-Rise Pile Cap Foundation |
| CN110258611A (en) * | 2019-06-28 | 2019-09-20 | 重庆大学 | A kind of offshore wind farm and aquafarm integral structure system |
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2019
- 2019-12-27 CN CN201911376392.0A patent/CN111155477B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2431531A1 (en) * | 2010-09-17 | 2012-03-21 | N. prior energy GmbH | Method and device for producing a ramming assembly on a sea or lake bed |
| CN103422506A (en) * | 2012-05-24 | 2013-12-04 | Naruems株式会 | Method for reducing underwater noise by underwater sound damper |
| EP2746462A2 (en) * | 2012-12-21 | 2014-06-25 | Maritime Offshore Group GmbH | Device and method for reducing the sound emissions when pile driving at sea |
| CN103774682A (en) * | 2014-01-27 | 2014-05-07 | 广东明阳风电产业集团有限公司 | Device for abating offshore draught fan foundation piling noise |
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| CN110258611A (en) * | 2019-06-28 | 2019-09-20 | 重庆大学 | A kind of offshore wind farm and aquafarm integral structure system |
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| CN111155477A (en) | 2020-05-15 |
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