EP2677082B1 - Procédé d'amortissement bruit sous-marin - Google Patents

Procédé d'amortissement bruit sous-marin Download PDF

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Publication number
EP2677082B1
EP2677082B1 EP13173106.9A EP13173106A EP2677082B1 EP 2677082 B1 EP2677082 B1 EP 2677082B1 EP 13173106 A EP13173106 A EP 13173106A EP 2677082 B1 EP2677082 B1 EP 2677082B1
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Prior art keywords
membrane
pressure
pressure line
compressed air
air
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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EP13173106.9A
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German (de)
English (en)
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EP2677082A1 (fr
Inventor
Tanja-Katrin Grießmann
Jörg Rustemeier
Raimund Rolfes
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Cay Grunau Hydrotechnik Ingenieurbuero Grunau Ek
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Cay Grunau Hydrotechnik Ingenieurbuero Grunau Ek
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Publication of EP2677082A1 publication Critical patent/EP2677082A1/fr
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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
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23124—Diffusers consisting of flexible porous or perforated material, e.g. fabric
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
    • B01F23/20—Mixing gases with liquids
    • B01F23/23—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids
    • B01F23/231—Mixing gases with liquids by introducing gases into liquid media, e.g. for producing aerated liquids by bubbling
    • B01F23/23105—Arrangement or manipulation of the gas bubbling devices
    • B01F23/2312—Diffusers
    • B01F23/23126—Diffusers characterised by the shape of the diffuser element
    • B01F23/231265—Diffusers characterised by the shape of the diffuser element being tubes, tubular elements, cylindrical elements or set of tubes

Claims (5)

  1. Procédé pour amortir des bruits dans l'eau, dans lequel on engendre un rideau de bulles (22) au moyen d'un dispositif de génération de rideau de bulles comprenant
    (a) une conduite sous pression (12) pour mener de l'air comprimé (30),
    - qui possède une paroi (24) qui entoure un espace intérieur (26),
    - dans laquelle la paroi (24) comporte une pluralité de traversées (28), qui possèdent des sections transversales respectives (Q),
    caractérisé en ce que le dispositif de génération de rideau de bulles
    (b) possède une membrane (34),
    - qui comprend une pluralité de pores (36) avec des tailles de pores respectives, et
    - qui est réalisée de telle façon que l'air comprimé (30) peut être distribué dans l'eau environnante à travers la membrane (34) sous forme de petites bulles (20) à travers les pores (36),
    (c) dans lequel la paroi (24) est entourée, au moins dans les environs des traversées (28), par une membrane qui est ainsi réalisée que l'air comprimé (30) peut être distribué dans l'eau environnante (38) hors de l'espace intérieur (26) à travers les traversées (28) et ensuite à travers la membrane (34) sous forme de petites bulles (20) et ensuite à travers les pores (36),
    (d) dans lequel les sections transversales (Q) des traversées et les tailles des pores sont ainsi choisies qu'il s'établit une pression d'air (p26) dans l'espace intérieur (26) et une pression (p32) appliquée dans un intervalle (32) entre la conduite sous pression (12) et la membrane (34), pour lesquelles s'applique: p 32 − p Umgebung p 26 − p Umgebung ≤ 0 , 3 ,
    Figure imgb0004
     où pUmgebung est la pression de l'environnement.
  2. Procédé selon la revendication, caractérisé en ce que la pression de l'air (p) dans une conduite sous pression (12) du dispositif de génération de rideau de bulles est d'au moins 0,3 MPa.
  3. Procédé selon l'une des revendications 1 ou 2, caractérisé en ce que
    - on amène à la conduite sous pression (12) de l'air comprimé (30) avec une pression d'air (p) d'au moins 0,5 MPa, en particulier d'au moins 1 MPa, et
    - il se produit à travers la membrane (34) une chute de pression au maximum de 0,3 MPa.
  4. Procédé selon l'une des revendications précédentes, caractérisé en ce que la conduite sous pression (12) a une longueur d'au moins 10 m, en particulier 40 m.
  5. Procédé selon l'une des revendications précédentes, caractérisé en ce que la membrane (34) est reliée à la conduite sous pression (12) d'une manière telle que l'on empêche une propagation de l'air comprimé (30) dans l'espace intermédiaire (32) entre la conduite sous pression (12) et la membrane (34) le long de la longueur (L) du système sur une distance plus grande qu'un trajet prédéterminé (l).
EP13173106.9A 2012-06-21 2013-06-20 Procédé d'amortissement bruit sous-marin Active EP2677082B1 (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE102012013443A DE102012013443A1 (de) 2012-06-21 2012-06-21 Blasenschleiererzeugungsvorrichtung

Publications (2)

Publication Number Publication Date
EP2677082A1 EP2677082A1 (fr) 2013-12-25
EP2677082B1 true EP2677082B1 (fr) 2017-07-19

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Family Applications (1)

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EP13173106.9A Active EP2677082B1 (fr) 2012-06-21 2013-06-20 Procédé d'amortissement bruit sous-marin

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EP (1) EP2677082B1 (fr)
DE (1) DE102012013443A1 (fr)
DK (1) DK2677082T3 (fr)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112967706A (zh) * 2021-03-12 2021-06-15 清研特材科技(洛阳)有限公司 用于水下吸音降噪的气泡幕/泡沫板复合装置及降噪方法
DE102021108670A1 (de) 2021-04-07 2022-10-13 Hydrotechnik Lübeck Gmbh Vorrichtung zur Erzeugung eines Blasenschleiers

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017418B4 (de) * 2008-04-03 2010-08-19 Gottfried Wilhelm Leibniz Universität Hannover Vorrichtung zur Reduzierung der Übertragung und Ausbreitung von Schall und/oder Wellenbewegungen in einer Flüssigkeit

Family Cites Families (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE8415461U1 (de) * 1984-05-21 1984-10-04 Deutsche Abwasser-Reinigungs-Gesellschaft mbH, 6200 Wiesbaden Membranbeluefter
DE9013851U1 (fr) * 1990-10-05 1990-12-13 Envicon Luft- Und Wassertechnik Gmbh & Co Kg, 4220 Dinslaken, De
US7441754B2 (en) * 2005-10-28 2008-10-28 Smith & Loveless, Inc. Apparatus for introducing a gas into a body of liquid
CN101821206B (zh) * 2007-10-10 2012-06-27 东丽株式会社 细小气泡散气管、细小气泡散气装置和浸渍型膜分离装置
JP5366785B2 (ja) * 2009-12-17 2013-12-11 株式会社クボタ 散気管
US8931763B2 (en) * 2010-09-10 2015-01-13 Environmental Dynamics International, Inc. Modular diffuser body and aeration system
DE102010048474A1 (de) * 2010-10-14 2012-04-19 Bernhard Weyres Vorrichtung und Verfahren zum Einbringen von Pfählen in den Meeresboden
CN201826334U (zh) * 2010-10-18 2011-05-11 中国长江三峡集团公司 一种气泡帷幕装置

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE102008017418B4 (de) * 2008-04-03 2010-08-19 Gottfried Wilhelm Leibniz Universität Hannover Vorrichtung zur Reduzierung der Übertragung und Ausbreitung von Schall und/oder Wellenbewegungen in einer Flüssigkeit

Also Published As

Publication number Publication date
EP2677082A1 (fr) 2013-12-25
DE102012013443A1 (de) 2013-12-24
DK2677082T3 (da) 2017-11-06

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