WO2007031592A1 - Installation de production d'energie par debit/pression - Google Patents

Installation de production d'energie par debit/pression Download PDF

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Publication number
WO2007031592A1
WO2007031592A1 PCT/FI2006/000272 FI2006000272W WO2007031592A1 WO 2007031592 A1 WO2007031592 A1 WO 2007031592A1 FI 2006000272 W FI2006000272 W FI 2006000272W WO 2007031592 A1 WO2007031592 A1 WO 2007031592A1
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WO
WIPO (PCT)
Prior art keywords
flow
funnel
fact
accordance
patent applications
Prior art date
Application number
PCT/FI2006/000272
Other languages
English (en)
Inventor
Risto Tapio Yli-Kovero
Original Assignee
Risto Tapio Yli-Kovero
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 Risto Tapio Yli-Kovero filed Critical Risto Tapio Yli-Kovero
Publication of WO2007031592A1 publication Critical patent/WO2007031592A1/fr

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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
    • F03B17/00—Other machines or engines
    • F03B17/06—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head"
    • F03B17/061—Other machines or engines using liquid flow with predominantly kinetic energy conversion, e.g. of swinging-flap type, "run-of-river", "ultra-low head" with rotation axis substantially in flow direction
    • 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
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • 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
    • F05B2240/10—Stators
    • F05B2240/13—Stators to collect or cause flow towards or away from turbines
    • F05B2240/133—Stators to collect or cause flow towards or away from turbines with a convergent-divergent guiding structure, e.g. a Venturi conduit
    • 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
    • F05B2240/00—Components
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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 object of the invention is to create a method for converting the kinetic energy of flowing water into pressurised energy and the creation of a structural solution in the form of a pump or a turbine, which utilises this pressurised energy.
  • the kinetic energy of the flow is converted into pressurised energy. This takes place by stopping the flow with a pressure lifting funnel.
  • the pressure lifting funnel is a steeply convergent funnel of a sizeable area, the throat of which is so small in relation to the frontal area of the funnel that only a small part of the flow may pass through the funnel. Typically, the area of the throat is under 10% of the area of the funnel.
  • the pressure directed into the funnel is converted into energy with power-producing equipment such as a turbine or a push piston pump which has been dimensioned so that it slows down the flow running through the throat of the funnel, and with that the pressure that builds in relation to the slowing of the flow is recovered with the help of the power-producing equipment's torque increase.
  • power-producing equipment such as a turbine or a push piston pump which has been dimensioned so that it slows down the flow running through the throat of the funnel, and with that the pressure that builds in relation to the slowing of the flow is recovered with the help of the power-producing equipment's torque increase.
  • power-producing equipment such as a turbine or a push piston pump which has been dimensioned so that it slows down the flow running through the throat of the funnel, and with that the pressure that builds in relation to the slowing of the flow is recovered with the help of the power-producing equipment's torque increase.
  • Typically, under 10% of the flow directed into the funnel will go through the funnel, whereas the rest passes the funnel by.
  • the basic concepts include the law of the continuity of movement and the Bernoulli equation.
  • the power contained by the flowing liquid consists of three factors which are pressure, speed and fall height, the sum of which is constant.
  • the energy contained by flowing water consists of the energy used to elicit pressure and that used to elicit movement, the total number of which is constant between two points. If the flow rate of water is changed, the pressure will change correspondingly. Therefore, if the flow rate increases, the pressure reduces and vice versa.
  • Known power-producing equipment which produces power from flowing water is based on the utilisation of the kinetic energy component and on the separating of the kinetic energy from flowing water.
  • This kind of power-producing equipment takes the form of underwater “windmills”, which in principle are similar to wind power plants, but their dimensioning has been adapted to correspond more to the higher density of water than to that of air.
  • Windmill solutions have been fixed with small funnels which converge and accelerate the flow.
  • the total amount of water, or at least the main body of it, is conducted through the throat of the funnel, and the purpose of the funnel is to converge and/or to accelerate the flow.
  • a funnel area that is two-fold in relation to the throat of the funnel does not produce any essential advantage because the water flow bouncing from the walls of the funnel to its centre elicits flow disturbance and turbulence in the throat of the funnel, which causes the effect to disappear (Figure 1).
  • the front funnel (2) which collects the flow to the front surface of the funnel (3) coming from the left towards the power-producing equipment through the throat of the funnel, has been connected to the power-producing equipment (1).
  • the flow rate increases in relation to the front surface area of the funnel and the throat area of the funnel. The more the funnel converges and the higher the flow rate is, the more steeply the flow that is directed towards the interior walls of the funnel is reflected towards the centre of the funnel.
  • the solution of the invention is based on the changing of the kinetic energy of flowing water into pressure energy and on the utilisation of this pressure energy.
  • funnel-shaped pressure collecting equipment having a small throat in relation to its area.
  • the front surface stops the flow and a conic area of high pressure (item 1 in Figure 3) is formed inside the funnel and to the front surface of the funnel, which converges in the flow direction.
  • the flow-through of the power producing equipment (item 2 in Figure 3) in the throat of the funnel is dimensioned so that the amount of through-running water will remain under 10% of that directed to the front surface of the funnel.
  • the funnel contains high pressure flow and the flow-through rate is essentially restricted to approximately the size of the incoming flow or even smaller, then slow movement with a large torque and strength value will be achieved, and this will be converted into energy by the power-producing equipment.
  • high pressure is achieved with the help of the oversized front funnel, the walls of the funnel, and the throat of the funnel, which combined produces high thrust levels for the power-producing equipment at the throat of the funnel.
  • the flow-through is in relation to the power directed to the funnel so that less than 10% of the power flow, which is the square metre of the flow rate multiplied by the area of the throat and is defined as the power directed towards the funnel, is allowed to pass the power- producing equipment.
  • the method also includes the opening form of the funnel.
  • the funnel is constructed in accordance with the steeply convergent method. The purpose of this is to create a vacuum area behind the funnel which reaches behind the power- producing equipment and behind its rear funnel in the flow direction.
  • the area of the funnel in accordance with the invention is at least ten times greater and the reducing corner of the funnel lies at least at 45 degrees in relation to the throat.
  • the required pressure may be collected from the flow at the vertical level, in which there is a hole or a very low funnel.
  • the front funnel becomes very unstable and keeping it in a vertical position may be difficult.
  • a collar (item 52 in Figure 5) which is loose against the walls of the funnel (item 51 in Figure 5) and is positioned backwards against the direction of flow, may be added at the outer edge of the funnel to increase the stability of the funnel and at the same time also intensify the vacuum behind the funnel created by the bypass flow as it keeps the bypass flow (item 53 in Figure 5) far enough away from the relief hole in the power-producing unit (item 54 in Figure 5).
  • Power stations that utilise the invention consist of a structurally separate front funnel section and the power-producing equipment unit itself.
  • the amount of the flow-through is dependent on the power directed into the funnel - in other words dependant both on the speed of the incoming flow and on the area of the funnel - the same effect may be reached at different incoming flow rates by changing the area of the funnel.
  • This allows the fact that one power-producing unit is useful at the point of a wide incoming flow area because the power directed into the funnel is made approximately constant by changing the area of the front funnel.
  • the power plant in accordance with the design of the invention, may also be built also so that the flow-throughs of several funnels are hydraulically connected to the same circle and this conjoined flow is conducted to the power- producing equipment. This kind of arrangement is especially useful when the incoming flow is small.
  • the connecting may be used to increase the unit effect of the power-producing equipment and to reduce the size variation of the power-producing equipment.
  • the division structures of the flow pressure which receive the part of the pressure directed towards the funnel and which direct the pressure and the flow towards the throat of the funnel (item 6 in Figure 4), may be built inside the funnel.
  • Another structural solution for the flow pressure plant is the anchorage of the front funnel at the bottom with a cable, a chain or with some other flexible fastening rather than a stiff structure and the equipping of the front funnel with underwater pontoons which keep the funnel at a regulated height from the bottom and away from the circle effect of waves.
  • the turning of the device against the direction of flow in the variation of the direction of the tidal flow can be managed either so that the device is essentially anchored to the bottom from one section, in which case the flow turns it, or so that the device entity turns around 180 degrees on its horizontal axis positioned vertically in respect to the flow.
  • the device has been anchored to the bottom with a cable or with another flexible fastening, and the device's underwater pontoons maintain it at the correct height and in the correct position. With the cable fastening no forces other than the thrust of the flow are exerted on the position of the funnel's supporting structures.
  • the device consists of the front funnel (1), the back funnel (3), and the power-producing equipment (2), which may be a turbine, a flow-through pump or some other form of energy-producing equipment with the appropriate power transmission equipment related to it.
  • the front funnel may be an ordinarily funnel-shaped construction or a construction of any shape with a cross-sectional area at the front that is bigger than the cross-sectional area of the throat.
  • the rear funnel (3) has the purpose of increasing the vacuum pressure behind the device and therefore reducing the counter pressure of a rotor or a piston.
  • the funnel has essentially been anchored to the bottom by fixing it to one fastening point with one or more (4) cables (7), a chain, a bar with joins at both ends or with another fully flexible solution. In the case of the river flow, even more fixing points may exist at the bottom.
  • the pontoons (5) have been fastened to the funnel.
  • the device's lower fastening may be arranged so that the device is affixed by several cables to the bottom so that the cables essentially have a shared point at which the lifting powers of the device are directed.
  • the device may be equipped with a tail which stabilises the device.
  • the effect and efficiency rate of the device are determined by the pressure difference between the incoming side and the relief side. The flow- through meets counter pressure at the back of the device when the water passing around the pressure funnel curves back into the vacuum created behind the funnel (flow arrows 55 in Figure 5).
  • the invention includes the connecting of more funnels to a flow power plant unit, in which the funnels have been grouped consecutively and are overlapping in relation to each other in the flow direction at the funnel turbulence area.
  • This turbulence area is that area in which the flow rates are unequal due to the effect of the funnel at a point in front of or behind the funnel.
  • the turbulence area ends when the flow rate difference behind the funnel essentially no longer depends on the funnel.
  • the idea of the arrangement is to utilise the increased flow rate caused by the liquid passing by funnels.
  • two first-line funnels (1) are included in the incoming flow (3).
  • these funnels may be installed at the bottom so that they form a bottom dam with a hole in the middle.
  • the funnels When less than 10% of the flow goes through the funnels, nearly the whole flow passes by the funnels (4). If the distance between the funnels is somewhat under half of the width of the funnels, the flow rate doubles in the space between the funnels.
  • the power directed to the funnel in the second line is increased eightfold as compared to the power of the incoming flow rate.
  • the funnels may be linked together to whatever number is desired.
  • This linking has a high significance especially in slow incoming flows.
  • the majority of the energy contained by flowing water is reserved in slow flows in the tide and in rivers. These flows cannot be utilised with modern technology for power production, as is possible by linking funnels.
  • a solution for reducing building costs is to make the front-line funnels mere pressure disks which have no power-producing equipment.
  • the task of these pressure disks is merely to increase the speed of the flow directed to the funnels in the next line.
  • the aforementioned turbulence area starts from these pressure disks.

Landscapes

  • Engineering & Computer Science (AREA)
  • Power Engineering (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 un procédé et une installation de production d'énergie par débit/pression permettant de convertir l'énergie cinétique d'un fluide en énergie rotative au moyen d'une roue hydraulique (1) servant à entraîner un générateur d'énergie. La roue hydraulique (1) est installée à l'intérieur d'un dispositif (2) récepteur en forme d'entonnoir, provoquant un accroissement de la vitesse (5) d'écoulement à l'endroit où l'entonnoir se resserre. L'entrée de l'entonnoir (3) comprime le flux (4) s'écoulant dans la sortie de l'entonnoir. La surface de section de la sortie est inférieure à 15 % de la surface de section de l'entrée de l'entonnoir (3).
PCT/FI2006/000272 2005-08-10 2006-08-07 Installation de production d'energie par debit/pression WO2007031592A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
FI20050810A FI20050810A0 (fi) 2005-08-10 2005-08-10 Virtauspainevoimala4
FI20050810 2005-08-10

Publications (1)

Publication Number Publication Date
WO2007031592A1 true WO2007031592A1 (fr) 2007-03-22

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ID=34896274

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/FI2006/000272 WO2007031592A1 (fr) 2005-08-10 2006-08-07 Installation de production d'energie par debit/pression

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FI (1) FI20050810A0 (fr)
WO (1) WO2007031592A1 (fr)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20100015A1 (it) * 2010-01-29 2011-07-30 Marco Pillonca Convogliatore per fluidi ed impianto comprendente lo stesso convogliatore
DE102013012711A1 (de) * 2013-08-01 2015-02-05 Rolf Mohl Turbinenvorrichtung sowie deren Herstellung und Verwendung
GB2542689A (en) * 2015-08-10 2017-03-29 Fang Zupeng Deep water power generation station, power station, marine power plant and offshore floating city thereof
CN108843846A (zh) * 2018-08-28 2018-11-20 西安工程大学 一种基于超声波的热水减压阀
US11319920B2 (en) 2019-03-08 2022-05-03 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
WO2022131088A1 (fr) * 2020-12-18 2022-06-23 義英 土橋 Dispositif de production d'énergie hydraulique de type à collecte d'eau, de type à trajet d'eau à réduction de pression étagée

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112876A (en) * 1979-02-19 1980-09-01 Fumihide Sugihara Power generating method and device for the same which utilizes fluid energy in the form of rotation energy
WO2004067951A1 (fr) * 2003-01-31 2004-08-12 Moerch Paul K Agencement dans une centrale houlomotrice ii

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS55112876A (en) * 1979-02-19 1980-09-01 Fumihide Sugihara Power generating method and device for the same which utilizes fluid energy in the form of rotation energy
WO2004067951A1 (fr) * 2003-01-31 2004-08-12 Moerch Paul K Agencement dans une centrale houlomotrice ii

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
ITVR20100015A1 (it) * 2010-01-29 2011-07-30 Marco Pillonca Convogliatore per fluidi ed impianto comprendente lo stesso convogliatore
DE102013012711A1 (de) * 2013-08-01 2015-02-05 Rolf Mohl Turbinenvorrichtung sowie deren Herstellung und Verwendung
DE102013012711B4 (de) * 2013-08-01 2017-10-19 Rolf Mohl Turbinenvorrichtung sowie deren Herstellung und Verwendung
GB2542689A (en) * 2015-08-10 2017-03-29 Fang Zupeng Deep water power generation station, power station, marine power plant and offshore floating city thereof
GB2542689B (en) * 2015-08-10 2018-12-26 Fang Zupeng Deep water power generation station, power station, marine power plant and offshore floating city thereof
CN108843846A (zh) * 2018-08-28 2018-11-20 西安工程大学 一种基于超声波的热水减压阀
US11319920B2 (en) 2019-03-08 2022-05-03 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
US11835025B2 (en) 2019-03-08 2023-12-05 Big Moon Power, Inc. Systems and methods for hydro-based electric power generation
WO2022131088A1 (fr) * 2020-12-18 2022-06-23 義英 土橋 Dispositif de production d'énergie hydraulique de type à collecte d'eau, de type à trajet d'eau à réduction de pression étagée
JP2022097312A (ja) * 2020-12-18 2022-06-30 義英 土橋 段階減圧式水路型集水型水力発電装置

Also Published As

Publication number Publication date
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