WO2022177212A1 - Structure de stockage d'énergie sous-marine ayant un élément d'ancrage, et son procédé de construction - Google Patents

Structure de stockage d'énergie sous-marine ayant un élément d'ancrage, et son procédé de construction Download PDF

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Publication number
WO2022177212A1
WO2022177212A1 PCT/KR2022/001810 KR2022001810W WO2022177212A1 WO 2022177212 A1 WO2022177212 A1 WO 2022177212A1 KR 2022001810 W KR2022001810 W KR 2022001810W WO 2022177212 A1 WO2022177212 A1 WO 2022177212A1
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WO
WIPO (PCT)
Prior art keywords
storage member
storage
underwater
energy storage
air
Prior art date
Application number
PCT/KR2022/001810
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English (en)
Korean (ko)
Inventor
김대윤
Original Assignee
이노스텍 주식회사
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Publication date
Application filed by 이노스텍 주식회사 filed Critical 이노스텍 주식회사
Publication of WO2022177212A1 publication Critical patent/WO2022177212A1/fr

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    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D13/00—Assembly, mounting or commissioning of wind motors; Arrangements specially adapted for transporting wind motor components
    • F03D13/20—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors
    • F03D13/25—Arrangements for mounting or supporting wind motors; Masts or towers for wind motors specially adapted for offshore installation
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/10—Combinations of wind motors with apparatus storing energy
    • F03D9/17—Combinations of wind motors with apparatus storing energy storing energy in pressurised fluids
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
    • F03D—WIND MOTORS
    • F03D9/00—Adaptations of wind motors for special use; Combinations of wind motors with apparatus driven thereby; Wind motors specially adapted for installation in particular locations
    • F03D9/20—Wind motors characterised by the driven apparatus
    • F03D9/28—Wind motors characterised by the driven apparatus the apparatus being a pump or a compressor

Definitions

  • the present invention relates to the field of construction, and more particularly, to an underwater energy storage structure and a construction method thereof.
  • Renewable energy which has recently been highlighted, has disadvantages such as inconsistent power generation output depending on the weather and season, and difficulty in securing reserve power.
  • ESS long-term energy storage technology
  • ENERGY STORAGE SYSTEM For power quality maintenance and management, research on long-term energy storage technology (ESS, ENERGY STORAGE SYSTEM) is being actively conducted.
  • Energy storage technology that can assist in the output change of renewable energy and provide available resources for reserve power can be classified according to the energy storage medium and storage time.
  • short-cycle energy storage technologies such as lithium-ion batteries that respond with fast output to keep the instantaneous power quality constant, redox flow batteries with a charge/discharge time of several hours or more and a large-capacity unit storage capacity, and pumped water power generation It can be divided into long-period technologies such as
  • the present invention has been derived to solve the above problems, and it is an object of the present invention to provide an underwater energy storage structure that is easy to construct, has a small problem of aquatic environmental pollution, and does not require excessive construction cost, and a construction method thereof. do it with
  • the present invention is such that the storage space 101 of the air is formed therein, the closing part 110 is formed in the upper and side parts, and the opening part 120 is formed in the lower part, as well as in the water.
  • a storage member 100 installed to be locked;
  • An anchor member 200 installed to prevent floating and movement of the storage member 100;
  • Air pump 11 installed to be driven by the power of the primary power plant 10 installed on water, underwater or waterside; It is installed to supply the air supplied by the air pump 11 to the storage space 101 of the storage member 100 , and one end is connected to the air pump 11 , and the other end is the storage space 101 .
  • a supply pipe 130 connected to; a discharge unit 140 installed in the closing unit 110 to discharge the air stored in the storage space 101 of the storage member 100;
  • a discharge unit 140 installed in the closing unit 110 to discharge the air stored in the storage space 101 of the storage member 100;
  • Presents an underwater energy storage structure comprising; a secondary power plant (20) installed to generate electricity using the air discharged by the discharge unit (140).
  • One end of the discharge unit 140 is connected to the discharge hole 111 formed in the closing part 110 of the storage member 100 , and the other end of the discharge unit 140 is connected to the secondary power plant 20 . and the discharge part 140 or the discharge hole 111 is preferably formed in an openable and openable structure.
  • the storage member 100 preferably has a hemispherical structure with an open lower portion.
  • the closure part 110 includes an upper closure part 113 having a hemispherical structure; It is preferable to include an extension closure part 114 of a cylindrical structure extending downward from the upper closure part 113 .
  • one end of the anchor member 200 is fixed to the storage member 100 and the other end is fixed to the underwater bottom surface (1).
  • the storage member 100 is preferably installed so that the lower end does not come into contact with the underwater floor surface (1).
  • the lower end of the support member 300 installed so as to be in contact with or buried in the underwater floor; it is preferable to further include.
  • the closure part 110 further includes a ring-shaped protrusion 115 protruding in a ring-shaped structure from the lower portion of the outer surface of the closing part 110 , and the support member 300 is installed on the ring-shaped protrusion 115 .
  • the support member 300 is preferably installed so that the length extending downward from the closing part 110 can be adjusted.
  • the lower end of the support member 300 is preferably embedded in the bottom surface of the water and fixed by a grout.
  • a floating body 131 is preferably installed at the other end of the supply pipe 130 so that the other end of the supply pipe 130 is exposed above the water surface inside the storage space 101 .
  • the present invention is a construction method of the underwater energy storage structure, the storage member manufacturing step of manufacturing the storage member 100 on the ground; A storage member acquisition step in which a portion of the closing part 110 of the storage member 100 is exposed above the water surface as the opening part 120 of the storage member 100 is obtained to face downward; a storage member moving step of moving the storage member 100 to an installation position in a floating state by a ship 30; A storage member immersion step of immersing the storage member 100 by allowing water to flow into the storage member 100 so that the lower end of the storage member 100 does not come into contact with the underwater bottom surface (1); To prevent the floating and movement of the storage member 100, the anchor member installation step of installing the anchor member 200; proposes a construction method of an underwater energy storage structure comprising a.
  • the present invention is a construction method of the underwater energy storage structure, the storage member manufacturing step of manufacturing the storage member 100 on the ground; A storage member acquisition step in which a portion of the closing part 110 of the storage member 100 is exposed above the water surface as the opening part 120 of the storage member 100 is obtained to face downward; a storage member moving step of moving the storage member 100 to an installation position in a floating state by a ship 30; A storage member immersion step of immersing the storage member 100 by allowing water to flow into the storage member 100 so that the lower end of the support member 300 is supported in contact with the underwater bottom surface (1); To prevent the floating and movement of the storage member 100, the anchor member installation step of installing the anchor member 200; proposes a construction method of an underwater energy storage structure comprising a.
  • the present invention provides an underwater energy storage structure that is easy to construct, has a small problem of aquatic environmental pollution, and does not require excessive construction cost, and a construction method thereof.
  • FIG. 1 is a block diagram of a first embodiment of an underwater energy storage structure.
  • Fig. 2 is a perspective view of a first embodiment of a storage member
  • 3 and 4 are process diagrams of a first embodiment of a construction method of an underwater energy storage structure.
  • FIG. 5 is a block diagram of a second embodiment of an underwater energy storage structure.
  • FIG. 6 is a perspective view of a second embodiment of the storage member
  • FIG. 7 and 8 are process diagrams of a second embodiment of the construction method of an underwater energy storage structure.
  • Fig. 9 is a perspective view of a third embodiment of the storage member.
  • Fig. 10 is a partial cross-sectional view of a third embodiment of the storage member
  • 11 and 12 are process diagrams of a third embodiment of a construction method of an underwater energy storage structure.
  • FIG. 13 is a block diagram of a third embodiment of an underwater energy storage structure.
  • FIG. 14 is a block diagram of a fourth embodiment of an underwater energy storage structure.
  • 15 is a block diagram of a fifth embodiment of an underwater energy storage structure.
  • 16 is a block diagram of a sixth embodiment of an underwater energy storage structure.
  • the underwater energy storage structure is basically, so that the storage space 101 of the air is formed therein, the closing part 110 is formed on the upper and side parts, and the lower part is opened
  • the portion 120 is formed, and the storage member 100 is installed to be submerged in water;
  • An anchor member 200 installed to prevent floating and movement of the storage member 100;
  • Air pump 11 installed to be driven by the power of the primary power plant 10 installed on water, underwater or waterside;
  • a supply pipe that is installed to supply the air supplied by the air pump 11 to the storage space 101 of the storage member 100 , and has one end connected to the air pump 11 and the other end connected to the storage space 101 .
  • a discharge unit 140 installed in the closing unit 110 to discharge the air stored in the storage space 101 of the storage member 100; and a secondary power plant 20 installed to generate electricity using the air discharged by the discharge unit 140 .
  • Air is stored in a compressed state by water pressure, and while this compressed air is discharged by the discharge unit 140 , power is generated in the secondary power plant 20 using the discharged air.
  • air is stored in a compressed state by the power and water pressure of offshore wind power plants and tidal power plants (primary power plants) whose power generation output is not constant depending on the weather and season, and then the compressed air is discharged and the output is stable. Can be generated by car power plant.
  • the storage member 100 has a simple structure having a closed portion 110 and an open portion 120 so that a storage space 101 of air is formed therein, manufacturing and construction of a large-scale structure without much effort and cost This is possible.
  • an upward force (buoyancy force) is applied to the storage member 100 so that the lower end of the storage member 100 is the underwater bottom surface 1 and Since there is no contact, there is no need for a separate construction for the underwater floor surface (1), thereby minimizing the problem of aquatic environmental pollution.
  • the air pump 11 is installed to be driven by the electric power of the primary power plant 10 such as an offshore wind power plant, a tidal power plant, etc. installed on the water, underwater or waterside, and the air supplied by the air pump 11 is stored as a storage member
  • a supply pipe 130 is installed to supply to the storage space 101 of 100 .
  • One end of the supply pipe 130 is connected to the air pump 11, and the other end is connected to the storage space 101, so that the other end of the supply pipe 130 is exposed above the water surface inside the storage space 101, the supply pipe 130.
  • the floating body 131 is installed at the other end of the supply pipe 130, since the air supplied from the other end of the supply pipe 130 is directly supplied to the storage space 101 without passing through the water, it is possible to prevent a loss due to the air being dissolved in water.
  • Air compressed and stored in the storage space 101 of the storage member 100 (air pressure is proportional to the seabed depth of the storage member 100) is discharged through the discharge unit 140 installed in the closing unit 110, the secondary The power plant 20 generates power using the high-pressure air discharged by the discharge unit 140 .
  • the power generation method of the secondary power plant 20 using the high-pressure air discharged in this way may be implemented by various embodiments.
  • the discharge unit 140 may have a tube structure for directly discharging high-pressure air, and the secondary power plant 20 may generate power by the high-pressure air directly discharged as described above.
  • the discharge unit One end of the 140 is connected to the discharge hole 111 formed in the closing part 110 of the storage member 100, the other end of the discharge unit 140 is connected to the secondary power plant 20, at this time the discharge unit 140 ) or the discharge hole 111 is formed in a structure that can be opened and closed. (FIG. 1)
  • air is injected into a floating body 21 such as a balloon by the discharge unit 140 , and the guide member 22 is driven by the buoyancy of the floating body 21 , and the guide member 22 ) may take a method of generating power in the secondary power plant 20 by the driving force.
  • a floating body 21 such as a balloon
  • the guide member 22 may take a method of generating power in the secondary power plant 20 by the driving force.
  • the air inside is discharged to remove the buoyancy, and it moves back into the water to receive air from the discharge unit 140 .
  • the storage member 100 has a closed portion 110 formed on the upper portion and the side portion, and an open portion 120 is formed on the lower portion, and is installed to be submerged in water, where the open portion 120 means a small through hole. Rather, it refers to a large portion formed to have the same or similar diameter as the maximum diameter of the closing part 110 (FIG. 2).
  • the storage member 100 may be implemented by a hemispherical structure with an open lower portion, a dome structure, or the like, and is preferably formed on a large scale by a steel material, a concrete material, or a composite structure thereof.
  • the closing part 110 of the storage member 100 includes an upper closing part 113 of a hemispherical structure; It may take a structure including; an extension closure part 114 of a cylindrical structure extending downward from the upper closure part 113, which has the advantage of being able to expand the air storage space in the vertical direction (Fig. 9)
  • the anchor member 200 In order to fix the storage member 100 at a predetermined position by resisting an upward force (buoyancy force) and a lateral force (ocean current, etc.) generated in the storage member 100 , the anchor member 200 is installed.
  • the anchor member 200 may be implemented by a structure in which one end is fixed to the storage member 100 and the other end is fixed to the underwater bottom surface (1).
  • the storage structure according to the present invention can be supported only by the anchor member 200, but when the support member 300 is installed so that the lower end is in contact with or buried in the underwater floor, more stable support is possible, the storage member There is an advantage in that it is possible to prevent damage due to the collision between the storage member 100 and the underwater floor during construction due to the submersion of 100. (FIG. 5)
  • the support member 300 Since the height of the underwater bottom surface is not constant, in order for a plurality of support members 300 to be stably supported by the underwater floor surface, the support member 300 is separated from the closing part 110 (ring-shaped protrusion 115). It is preferable to adopt a structure in which the length extending downward is adjustable. (FIG. 10)
  • the lower end of the support member 300 may contact the underwater bottom surface, but if necessary, the lower end of the support member 300 may be embedded in the underwater floor to some extent, and may take a structure fixed by a grout.
  • the turbulence prevention hole 501 is formed in the center of the coupling member 500 to prevent turbulence due to the difference in the flow velocity of the ocean current at the upper and lower parts.
  • the plurality of storage members 100 In order to reduce the effect of hydraulic load due to the current, it is preferable to arrange the plurality of storage members 100 to take the overall streamlined structure based on the plan view (FIG. 15), and even in the case of the side view, the central storage member 100a is It is preferable to take a streamlined structure as a whole by forming it higher than the edge storage member 100b (FIG. 16).
  • the construction method of the underwater energy storage structure according to the present invention is made by the following process.
  • a large-scale storage member 100 is manufactured on the ground (shore). (FIGS. 2 and 6)
  • an upward force (buoyancy force) is applied to the storage member 100 by the pressure, so that only a portion of the lower end of the storage member 100 is Since it is submerged in water, the storage member 100 can be moved to the installation position in a state where resistance to water is not large.
  • the storage member 100 When the storage member 100 reaches the installation position, the storage member 100 is immersed by discharging the air inside the storage member 100 and allowing water to flow in. (Figs. 4 and 8)
  • the air is gradually discharged from the storage space 101 of the storage member 100 through the discharge unit 140 or the discharge hole 111 by the air discharge device 31, so that the storage member 100 is It is desirable for the safety and accuracy of construction to sink slowly.
  • the lower end of the support member 300 is buried in the underwater bottom surface, and may be fixed by a grout, this operation is the support member 300 It may be performed in a state installed on the storage member 100, or after the fixing operation of the support member 300 is first performed, the storage member 100 and the support member 300 may be coupled to each other. (FIG. 11, 12)

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  • Engineering & Computer Science (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Sustainable Development (AREA)
  • Sustainable Energy (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
  • Revetment (AREA)

Abstract

L'invention concerne une structure de stockage d'énergie sous-marine caractérisée en ce qu'elle comprend : un élément de stockage (100) qui présente des parties fermées (110) formées sur les parties supérieure et latérale et une partie ouverte (120) formée sur la partie inférieure de telle sorte qu'un espace de stockage (101) pour l'air est formé à l'intérieur de celle-ci, et qui est installé de façon à être immergé ; un élément d'ancrage (200) installé pour empêcher l'élément de stockage (100) de flotter ; une pompe à air (11) installée de façon à être entraînée par l'énergie provenant d'une centrale électrique primaire (10) installée sur la surface de l'eau, sous l'eau ou sur le côté eau ; un tuyau d'alimentation (130) qui est installé pour alimenter l'espace de stockage (101) de l'élément de stockage (100) avec de l'air fourni par la pompe à air (11), et comporte une extrémité reliée à la pompe à air (11) et l'autre extrémité reliée à l'espace de stockage (101) ; des parties de décharge (140) installées dans les parties fermées (110) pour décharger l'air stocké dans l'espace de stockage (101) de l'élément de stockage (100) ; et une centrale électrique secondaire (20) installée pour générer de l'électricité à l'aide de l'air évacué par les parties de décharge (140). La structure de stockage d'énergie sous-marine est facile à construire, ne cause pas de problèmes liés à la pollution environnementale sous-marine, et permet la construction de structures à grande échelle sans nécessiter de coûts de construction excessifs.
PCT/KR2022/001810 2021-02-16 2022-02-07 Structure de stockage d'énergie sous-marine ayant un élément d'ancrage, et son procédé de construction WO2022177212A1 (fr)

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KR10-2021-0020579 2021-02-16
KR1020210020579A KR102429989B1 (ko) 2021-02-16 2021-02-16 앵커부재를 구비한 수중 에너지 저장구조물 및 그 시공방법

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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447738A (en) * 1981-12-30 1984-05-08 Allison Johnny H Wind power electrical generator system
WO2010087640A2 (fr) * 2009-01-30 2010-08-05 Lee Dal-Eun Système aérogénérateur utilisant de l'air comprimé
KR20120072118A (ko) * 2010-12-23 2012-07-03 한국지질자원연구원 해양풍력발전 연계형 압축공기 저장 및 발전시스템 및 해양형 압축공기 저장탱크
KR20130064517A (ko) * 2011-12-08 2013-06-18 한국해양과학기술원 신재생에너지를 이용한 압축공기 저장 발전 장치
JP2020070757A (ja) * 2018-10-31 2020-05-07 大豊建設株式会社 風力発電システム

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR101202945B1 (ko) * 2010-03-03 2012-11-19 이지남 수압을 이용한 공기압 에너지 저장장치
KR102027554B1 (ko) * 2018-02-12 2019-10-01 주식회사 인진 파력발전 시스템 및 그 제어 방법

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4447738A (en) * 1981-12-30 1984-05-08 Allison Johnny H Wind power electrical generator system
WO2010087640A2 (fr) * 2009-01-30 2010-08-05 Lee Dal-Eun Système aérogénérateur utilisant de l'air comprimé
KR20120072118A (ko) * 2010-12-23 2012-07-03 한국지질자원연구원 해양풍력발전 연계형 압축공기 저장 및 발전시스템 및 해양형 압축공기 저장탱크
KR20130064517A (ko) * 2011-12-08 2013-06-18 한국해양과학기술원 신재생에너지를 이용한 압축공기 저장 발전 장치
JP2020070757A (ja) * 2018-10-31 2020-05-07 大豊建設株式会社 風力発電システム

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