WO2023105250A1 - Centrale houlomotrice dotée d'un moufle d'accélération - Google Patents

Centrale houlomotrice dotée d'un moufle d'accélération Download PDF

Info

Publication number
WO2023105250A1
WO2023105250A1 PCT/GE2022/050006 GE2022050006W WO2023105250A1 WO 2023105250 A1 WO2023105250 A1 WO 2023105250A1 GE 2022050006 W GE2022050006 W GE 2022050006W WO 2023105250 A1 WO2023105250 A1 WO 2023105250A1
Authority
WO
WIPO (PCT)
Prior art keywords
block
cable
pontoon
floating member
pulley
Prior art date
Application number
PCT/GE2022/050006
Other languages
English (en)
Inventor
Viacheslav ZAGORUICHENKO
Original Assignee
JSC Zago Technology
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by JSC Zago Technology filed Critical JSC Zago Technology
Publication of WO2023105250A1 publication Critical patent/WO2023105250A1/fr

Links

Classifications

    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
    • F03B13/1865—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem where the connection between wom and conversion system takes tension only
    • 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
    • F03B—MACHINES OR ENGINES FOR LIQUIDS
    • F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
    • F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
    • F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
    • F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
    • F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
    • F03B13/1885—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is tied to the rem
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2240/00—Components
    • F05B2240/40—Use of a multiplicity of similar components
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F05—INDEXING SCHEMES RELATING TO ENGINES OR PUMPS IN VARIOUS SUBCLASSES OF CLASSES F01-F04
    • F05B—INDEXING SCHEME RELATING TO WIND, SPRING, WEIGHT, INERTIA OR LIKE MOTORS, TO MACHINES OR ENGINES FOR LIQUIDS COVERED BY SUBCLASSES F03B, F03D AND F03G
    • F05B2260/00—Function
    • F05B2260/40—Transmission of power
    • F05B2260/402—Transmission of power through friction drives
    • 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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

Definitions

  • the invention pertains to the field of power engineering, in particular, to devices for converting the energy of sea waves into electrical energy.
  • sea wave energy is a rapidly developing trend in the use of renewable energy sources, which should reduce the consumption of already exhaustible organic fuels, environmental pollution and limit the construction of nuclear power plants, the safety of which, after the major accidents in Chernobyl and Japan, is left in serious doubt today.
  • the uneven power produced by the wave energy plant is partially compensated by connecting it to the power system, which has the ability to regulate the power supplied by its electric plants with water reservoirs in power plants and partially change the load on a thermal power plant.
  • the power system which has the ability to regulate the power supplied by its electric plants with water reservoirs in power plants and partially change the load on a thermal power plant.
  • S is the cross-section of the pontoon
  • P is the specific gravity of the water
  • the high-speed jet of the lifting water stream acts on the bottom of the pontoon.
  • buoyancy force for example, for a stationary pontoon
  • the buoyancy force is much greater than the force of the high-velocity surrounding flow of rising water.
  • the total force acting on the pontoon can be quite large. At the same time, for efficient conversion of wave energy, water rising velocities are relatively low.
  • a pulley-block is used in some technical solutions.
  • the power plant disclosed in German patent application DE10006881 (Al) is known.
  • the device uses a pulley-block consisting of two fixed rollers and a free roller.
  • the device also includes a relatively large roller, which is located next to the first fixed roller and is used only for the downward movement of the load. These rollers are connected to the loads through a rope or chain.
  • the plant consists of a generator connected to a shaft containing modules connected in sequence, wherein each module consists of a shaking wheel mounted on a shaft and a pulley on which a rope is wound, one end of which is connected to the working pulley through an n-fold lifting pulley-block, and the other end is connected to a counterweight.
  • the technical effect of the present invention is increase in the efficiency of the plant and expanding its functional capabilities.
  • the present invention proposes a wave energy plant, which comprises: a floating member designed to move vertically upward and downward with the movement of the wave; a main pulley-block that is attached to a floating memeber and is intended to increase the speed of the cable, comprising a plurality of upper and lower rollers for passing the cable thereon, which are disposed on the upper and lower roller holders, respectively; a load that is connected to the floating member through the cables and the main pulleyblock, and that is intended to be placed stationary on the seabed and to load the floating member;
  • At least one electric generator with a shaft that is connected by pulleys and cable to the main pulley-block and is intended to convert the kinetic energy of the movement of the floating member into electrical energy; an additional pulley-block comprising a plurality of upper and lower rollers for passing the cable thereon, rigidly connected to the main pulley-block and designed to retard the movement of the additional load connected to the pulley-block by means of a cable; an additional load that is connected to the additional pulley-block by means of a cable and is intended to sink into the water depth and to tension the cable passing through the rollers of the main pulley-block during the movement of the floating member.
  • the floating member is made in the form of a pontoon.
  • the pontoon comprises air and water itake and discharge means.
  • the main pulley-block comprises two or more pulleys mounted on a single shaft.
  • the plant uses freewheel clutches connected to said pulleys to transfer rotary motion through them to electric generators during forward and reverse motions of the main pulley-block.
  • a system of wave energy plants that comprises a plurality of electrically connected wave energy plants.
  • Fig. 1 shows a schematic representation of the structure of the wave energy plant according to the present invention
  • Fig. 2 shows a schematic representation of the pontoon structure of the wave energy plant according to the present invention
  • Fig. 3 shows a hydraulic valve designed to fill a pontoon with water, a motor with a gearbox and a shaft designed to control the hydraulic valve, a valve with its own motor and gearbox designed to release air from the pontoon, a control valve designed to enter air into the pontoon from a common hose;
  • Fig. 4 shows a system consisting of a plurality of wave energy plants located in the sea.
  • Fig. 1 shows a schematic representation of the structure of the wave energy plant according to the present invention.
  • the plant comprises a pontoon 1 that is connected to a load 6 by means of two high strength cables 7 through the main pulley-block 3.
  • Pulleys-blocks 3 and 4 have a common cable 8 passing through one or more pulleys 15.
  • the pulleys 15 are mounted on a shaft connected to shafts 21 of two electric generators 11, 12 through free release clutches, i.e. through freewheel clutches 20, which rotate the electric generators 11, 12 in different directions.
  • the output end of the cable 8 then descends onto the rollers of the second auxiliary pulley-block 4, on which the load 5 is suspended.
  • the load 5 has the capability of moving along the cables 7, for which purposes the corresponding holes are made therein.
  • the load 5 is designed to tension the common cable 8 and to engage the latter well to the pulleys. In addition, it provides reverse motion once the pontoon is raised.
  • the main pulley-block 3 and the auxiliary pulley-block 4 comprise upper and lower roller holder 22, for example in the form of a plate.
  • the lower roller holder 22 of the main pulleyblock 3 and the upper roller holder 22 of the additional pulley-block 4 are rigidly attached to each other so as to form a stationary frame 23.
  • the said stationary frame 23, through a cable that is tensioned by the pontoon 1, is connected to the main load 6.
  • the upper roller holder 22 of the main pulley-block 3 is rigidly connected to the pontoon 1.
  • the hoi det 22 of the lower rollers of the additional pulley block 4 is rigidly connected to the additional load 5.
  • the moving elements in the structure of the entire plant are: panton 1, common cable 8 of the first and second pulley-blocks 3 and 4, and the additional load 5.
  • Both pulley-blocks have a common cable, which passes from the main pulley-block to the other pulley-block through one or more pulleys.
  • the structure includes a roller 22, which plays the role of an intermediate element to pass the cable from one pulley to another and to strengthen the engagement of the cable with the pulleys.
  • the auxiliary pulley-block 4 is required to retard the movement of the load 5, which enables the wave energy plant to operate at a relatively shallow depth, that is, closer to the shore.
  • the main pulley-block 3 is intended to increase the speed of movement of the common cable 8 when lifting the pontoon, the value of which depends on the number of rollers. In the plant, the speed of the common cable 8 increases 8-10 times. Accordingly, the tension force of the cable decreases, which makes it possible to use relatively small diameter pulleys 15 and the shaft on which they are mouted. Owing to such a construction, it is clear that the rotary movement transferred from the pulleys to the electric generators will have a high number of revolutions per unit of time, as a result of which it is possible to reduce the volume and cost of the generators.
  • Electric generators 11, 12 are mainly made in the form of induction generators, which can work in a wide range of revolutions.
  • the cable is partially wetted by water, and in order to maintain the cable in good engagement, it must have a certain tensile force F2 after passing over the pulley. In the present plant, this force is created by the auxiliary pulley -block 4 and the load 5.
  • the allowable value Fi can be increased by increasing the number of pulleys on the drive shaft.
  • the plant operates as follows.
  • the main pulley-block 3 is tensioned and pulls the common cable 8 between its upper and lower rollers shown in the figure.
  • the common cable 8 rotates the pulleys in one direction, and the rotational moment is transferred to the electric generator 11 through one of the freewheel clutches.
  • the load 5 is lifted through the pulley-block 4.
  • the load 5 produces a constant tension, and the force acting on the pontoon lifting depends on the intensity of the waves, which is taken into account in the calculation of the power and excitation currents of the induction generators.
  • buoyancy force for example, for a stationary pontoon
  • the buoyancy force is much greater than the force of the high-velocity surrounding flow of rising water.
  • the total force acting on the pontoon can be quite large. At the same time, for efficient conversion of wave energy, water raising velocities are relatively low. According to practical studies, the power extracted from the wave by the pontoon strongly depends on the pontoon's own frequency setting and the frequency of the incoming wave. All this is taken into account in designing the present wave energy plant pontoon, which is shown in fig. 2.
  • the pontoon has a cylindrical shape and is made inflatable. It is preferably made of a strong rubber-like fabric.
  • a hole is made in the middle part of the pontoon, in which the groove 10 is inserted. The groove with both ends clamps the edges of the fabric to the hole and the space inside the pontoon is sealed.
  • a housing 13 is hermetically mounted in the upper part of the groove, in which electric generators are placed in the compartments made therein.
  • the shafts of electric generators are connected to the common shaft by pulleys. From the pulleys to the pulley-blocks, the cables descend in the groove. What can also be seen in the figure is the shaft of the generator 21, the freewheel clutch 20, the bearing 17, the packing seal 16 for sealing the compartments of the generators.
  • a seat body 18 is mounted for fixing the cable 14, which is intended for connecting different wave energy plants to each other and to the central pontoon 32 (see Fig. 4
  • the central pontoon is the element where the ends of the electric cables of all the plants of the system meet, so that it can be connected to the corresponding power station on the coast.
  • Two single-phase power cables 23, 24 are hung on the cable 14, through which the direct current generated by the electric generators is transmitted.
  • Through hose (rubber) 25 air is supplied to the pontoons under pressure to inflate them.
  • Said cables and air hose are collected on the central pontoon 32, and then pass to the substation 33 by hanging in the air or passing through the seabed.
  • Substation 33 is equipped with a means of converting direct voltage into alternating voltage of industrial frequency, for example, with a thyristor inventor, from which centralized control of the operation mode of various wave energy plants is carried out.
  • Fig. 3 shows a hydraulic valve 27, which is designed to fill the pontoon with water, a motor with a gearbox 28 and a shaft designed to drive the hydraulic valve, a valve 29 with its motor and a gearbox 30, that is intended to release air from the pontoon, a controlable valve 31 that is intended to admit air into the pontoon from a common hose.
  • Hydraulic valve 27 is designed to let water into the pontoon and regulate its mass, through which the oscillating process is set according to the frequency of the waves. Water intake is performed by opening the hydraulic valve 27 and releasing air through valve 29, and water release is performed by pressurizing the pontoon through valve 31. In conditions of extreme sea turbulence, for which the strength of the pontoon is not calculated, air is released from the latter and its cross-section decreases. Due to this, the pontoon takes a shape that is easier to get around with water. With such a construction, it is also possible to completely submerge the pontoon in water (in this case, all electrical wires must be properly sealed). All equipment can be controlled centrally from a substation located on shore.
  • inductive generators preferably inductive disk generators
  • inductive disk generators are used to convert mechanical energy into electrical energy, at the output of which a constant voltage is obtained, which makes it possible to connect a number of generators in parallel to each other through cables 23, 24.
  • Inductor generators can operate at different rotation numbers and maintain voltage levels through excitation current regulation, which can also be done centrally from a shore-based substation.
  • the performance of all electrical components of the system is obvious and known to those skilled in the art and is not discussed in detail in this description.
  • the shape of the inflatable pontoon during its manufacture can be secured by tensioners 25 (see Fig. 3).
  • Fig. 4 shows a plurality of offshore wave energy plants connected to each other, to a central pontoon 32 and to an onshore substation 33.
  • the central pontoon 32 is connected to the substation 33 via a cable hanger 34, which in an alternative embodiment may be a cable laid on the seabed.

Landscapes

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

Abstract

L'invention concerne une centrale houlomotrice qui comprend : un élément flottant (1) conçu pour se déplacer verticalement vers le haut et vers le bas avec le mouvement des vagues ; un moufle principal (3) fixé audit élément flottant (1) et conçu pour augmenter une vitesse de mouvement de câble (8) ; une charge reliée à l'élément flottant par l'intermédiaire de câbles et du moufle principal afin d'être placée de manière fixe sur le fond marin et de charger ledit élément flottant ; au moins un générateur électrique avec un arbre, relié par l'intermédiaire de poulies et du câble audit moufle principal pour convertir l'énergie cinétique du mouvement de l'élément flottant en énergie électrique ; un moufle supplémentaire relié de manière rigide au moufle principal pour ralentir le mouvement d'une charge supplémentaire reliée à celui-ci par le câble ; une charge supplémentaire reliée audit moufle supplémentaire par l'intermédiaire du câble pour une immersion dans la profondeur de l'eau et pour tendre le câble pendant le mouvement dudit élément flottant.
PCT/GE2022/050006 2021-12-09 2022-12-09 Centrale houlomotrice dotée d'un moufle d'accélération WO2023105250A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GEAP202115822 2021-12-09
GEAP2021015822 2021-12-09

Publications (1)

Publication Number Publication Date
WO2023105250A1 true WO2023105250A1 (fr) 2023-06-15

Family

ID=86729719

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GE2022/050006 WO2023105250A1 (fr) 2021-12-09 2022-12-09 Centrale houlomotrice dotée d'un moufle d'accélération

Country Status (1)

Country Link
WO (1) WO2023105250A1 (fr)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2018125318A2 (fr) * 2016-09-11 2018-07-05 Brian Lee Moffat Dispositif houlomoteur à inertie
WO2019136007A1 (fr) * 2018-01-02 2019-07-11 Lone Gull Holdings, Ltd. Submersible à bouée à alimentation renouvelable
US20190360452A1 (en) * 2016-08-08 2019-11-28 Yanming Qu Wave-activated power generator provided with rope-control hydraulic cylinder

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20190360452A1 (en) * 2016-08-08 2019-11-28 Yanming Qu Wave-activated power generator provided with rope-control hydraulic cylinder
WO2018125318A2 (fr) * 2016-09-11 2018-07-05 Brian Lee Moffat Dispositif houlomoteur à inertie
WO2019136007A1 (fr) * 2018-01-02 2019-07-11 Lone Gull Holdings, Ltd. Submersible à bouée à alimentation renouvelable

Similar Documents

Publication Publication Date Title
KR101679433B1 (ko) 파력 발전 장치
KR101599708B1 (ko) 잠수형 발전 플랫폼
US7319278B2 (en) Ocean wave generation
CN108884807B (zh) 用于将波浪能转化成电能的设备以及用于将其布设在开采位置处的方法
JP5858241B2 (ja) 波動から電気エネルギーを生成するための装置
AU2008227243B2 (en) Device for wave-powered generator
US20070018458A1 (en) Method and apparatus for wave energy conversion using a floating pulley and counterweight
JP6476443B2 (ja) 波力発電システムとこれに用いる伝達体および回転変換部
JP7446243B2 (ja) 再生可能エネルギー変換装置
US20100102563A1 (en) Device for wave-powered generator
US20080053084A1 (en) Method and Apparatus for Utilising Wave Energy
KR101548038B1 (ko) 수류발전 시스템용 전력 분배 및 전송 시스템
WO2015045055A1 (fr) Système de génération d'énergie houlomotrice, et corps de transmission et unité de conversion de rotation utilisés pour celui-ci
JP2009533600A (ja) 海の波動エネルギーの多重利用および補足的な変換
CN104153937A (zh) 一种适应潮位变化的波浪能收集装置
WO2023105250A1 (fr) Centrale houlomotrice dotée d'un moufle d'accélération
GB2498638A (en) Device for generating electrical energy from water wave energy
CN106337772B (zh) 具有锚链自动调整装置的波浪发电设备
GB2575336A (en) Subsea energy generation assembly utilising wave energy
RU2775945C1 (ru) Волновая установка
KR20130031472A (ko) 전력생산시스템
RU2789702C1 (ru) Прибрежная волновая электростанция
ITMO20060156A1 (it) Impianto elettromeccanico idoneo a trasformare l'energia del moto ondoso in energia elettrica, installabile sia a ridosso delle coste che in mare aperto o sui laghi, non presidiato.
FI109553B (fi) Aaltovoimala
CN116357495A (zh) 龙门架水力发电机

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 22903647

Country of ref document: EP

Kind code of ref document: A1