WO2015070410A1 - Appareil de génération d'énergie hydraulique et procédé de réduction de ses dimensions verticales - Google Patents

Appareil de génération d'énergie hydraulique et procédé de réduction de ses dimensions verticales Download PDF

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Publication number
WO2015070410A1
WO2015070410A1 PCT/CN2013/087114 CN2013087114W WO2015070410A1 WO 2015070410 A1 WO2015070410 A1 WO 2015070410A1 CN 2013087114 W CN2013087114 W CN 2013087114W WO 2015070410 A1 WO2015070410 A1 WO 2015070410A1
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WO
WIPO (PCT)
Prior art keywords
power generating
water flow
impeller
water
weight
Prior art date
Application number
PCT/CN2013/087114
Other languages
English (en)
Chinese (zh)
Inventor
王志强
Original Assignee
深圳智慧能源技术有限公司
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 深圳智慧能源技术有限公司 filed Critical 深圳智慧能源技术有限公司
Priority to PCT/CN2013/087114 priority Critical patent/WO2015070410A1/fr
Publication of WO2015070410A1 publication Critical patent/WO2015070410A1/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
    • F05B2240/90—Mounting on supporting structures or systems
    • F05B2240/97—Mounting on supporting structures or systems on a submerged structure
    • 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
    • F05B2250/00—Geometry
    • F05B2250/40—Movement of component
    • F05B2250/41—Movement of component with one degree of freedom
    • F05B2250/411—Movement of component with one degree of freedom in rotation
    • 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
    • Y02E10/20—Hydro energy
    • 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 present invention relates to a power generating device, and more particularly to an apparatus for generating electricity using energy of a water stream and a method of reducing the vertical dimension of such a power generating device.
  • Existing water flow driven power generating devices generally include a body floating on the water surface and an impeller located below the body, and the impeller is connected to the body by a connecting member. The water flows through the impeller to drive the impeller to rotate, and the power generating device converts the rotation of the impeller into electrical energy.
  • the power generation unit needs maintenance, it is usually towed back to the port by a tugboat, and after the maintenance is completed, it is transported to a predetermined place for power generation.
  • the distance between the impeller and the body is very large, often exceeding the water depth of the port. Therefore, it is necessary to reduce the vertical distance between the impeller and the body in certain specific situations.
  • this paper proposes a water flow driven power generation device capable of reducing the vertical distance between the impeller and the body.
  • a method of reducing the vertical dimension of a water flow driven power generating device is also proposed herein.
  • This paper proposes a water flow driven power generation device comprising a body, an impeller and a counterweight receiving portion.
  • the body is provided with a cavity such that the body can float on the surface of the water or in the water.
  • the impeller is coupled to the body by a connector and located below the body, the impeller is configured to rotate under the action of a water flow to drive a power generating unit to generate electric power, and the impeller and the body are vertically oriented There is a vertical distance on it.
  • the weight receiving portion is disposed on the body, and the weight receiving portion is disposed such that when the weight is disposed at the weight receiving portion, the center of gravity of the weight is vertically offset from the water flow The center of gravity of the power generating device is driven to cause the water flow to drive the power generating device to roll over to reduce the vertical distance between the impeller and the body.
  • the weight receiving portion is configured to hold heavy water or to position a solid weight.
  • the connector is fixedly coupled to the body.
  • the body has a streamlined outer surface.
  • At least a portion of the structure of the power generating unit is located within the body.
  • the weight receiving portion is a first weight receiving portion
  • the water flow driving power generating device further includes a second weight receiving portion, when the first weight receiving portion receives the weight, The water flow driving power generating device is turned sideways in a first direction, and when the second weight receiving portion receives the weight, the water flow driving power generating device is turned sideways in the opposite second direction.
  • the water flow driven power generating device includes a body and an impeller.
  • the body is provided with a cavity such that the body can float on a water surface or water, and the impeller is connected to the body by a connecting member for rotating under the action of a water flow to drive a power generating unit to generate electric power.
  • the method is to provide a weight on the body, the center of gravity of the weight is offset from the center of gravity of the power generating device in a vertical direction, thereby causing the power generating device to roll over to reduce the impeller and the body Vertical distance.
  • the weight is a counterweight water or a solid weight.
  • the relative positional relationship of the impeller to the body remains unchanged during the rollover of the power generating device.
  • the weight is placed on the body to cause the fluid to drive the power plant to roll over to expose the impeller to the surface.
  • the power generating device is turned over by the counterweight to reduce the vertical distance between the impeller and the body, thereby effectively reducing the flow drive power generation.
  • the vertical dimension of the unit facilitates the flow of water to drive the power unit into and out of the port or other shallow water area.
  • Figure 1 is a schematic illustration of one embodiment of a water flow driven power plant.
  • FIG. 2 is a schematic cross-sectional view of one embodiment of a water flow driven power plant depicting a situation in which no counterweight is applied.
  • Figure 3 is a schematic cross-sectional view of one embodiment of a water flow driven power plant depicting a situation after application of a counterweight.
  • FIG. 4 is a schematic cross-sectional view of one embodiment of a water flow driven power plant depicting another situation after application of a counterweight.
  • Figure 5 is a schematic cross-sectional view of another embodiment of a water flow driven power plant depicting the absence of a counterweight applied.
  • FIG. 1 is a schematic illustration of one embodiment of a water flow driven power plant.
  • the power generating device shown is driven by water flow motion (e.g., ocean currents, rivers, etc.), and mainly includes a body 10, an impeller 12, and a power generating unit.
  • water flow motion e.g., ocean currents, rivers, etc.
  • a cavity is provided inside the body 10 so that the body 10 can float on the surface of the water or in the water.
  • the body 10 has a streamlined outer surface that does not cause excessive resistance to water flow.
  • the impeller 12 is coupled to the body 10 by a connector 14 and is located below the body 10.
  • the connector 14 is fixedly coupled to the body 10, i.e., the joint of the connector 14 is not movable relative to the body 10. This fixed connection will simplify the design and manufacture of the power plant structure.
  • the connector 14 and the body 10 can also be movably connected.
  • a portion of the connector 14 is located below the body 10, and this portion below the body 10 is used to connect the impeller 12.
  • the connector 14 also includes a portion that extends above the body 10. This portion above the body 10 can be provided with other auxiliary devices, such as beacon lights.
  • the impeller 12 is used to rotate under the action of a water flow to drive a power generating unit to generate electric power.
  • the power generating unit can take a variety of configurations, and at least a portion of its structure is located within the body 10.
  • the power generating unit may include a direct drive motor disposed on the connector and a power post-processing device disposed within the body 10.
  • the impeller 12 drives the direct drive motor to generate electricity. Due to the instability of the water flow, the frequency and voltage of the electricity emitted by the direct drive motor are also unstable.
  • the power post-processing device in the body 10 may be an inverter that processes the unstable power generated by the direct drive motor into constant frequency constant voltage or power that meets other requirements.
  • the kinetic energy of the rotation of the impeller 12 can also be transmitted to the body 10 by the force transmission mechanism, and then a device such as a generator is disposed in the body 10 to generate electricity.
  • a device such as a generator
  • the force transfer mechanism is considered to be part of the power generation unit. Therefore, the water flow driven power generation device described herein does not limit the configuration of the power generation unit.
  • the power plant includes only one impeller 12. In other embodiments, the water flow driven power plant may also include two or more impellers 12.
  • the connector 14 is also not limited to a straight structure, which may be other frame structures.
  • the body 10 is provided with a weight receiving portion 16, which is disposed such that when the weight 18 is disposed at the weight receiving portion 16, the center of gravity of the weight 18 deviates in the vertical direction.
  • the water flow drives the center of gravity of the power generating device, causing the water flow to drive the power generating device to roll over to reduce the vertical distance between the impeller 12 and the body 10, thereby reducing the vertical dimension of the water flow driving power generating device.
  • the weight 18 is illustrated by taking the weight water as an example, and the weight receiving portion 16 is a cavity for holding heavy water.
  • the cavity is located on one side of the body 10.
  • the cavity should be arranged such that after the injection of the counterweight water, the center of gravity of the counterweight should deviate from the center of gravity of the power generating device in the vertical direction.
  • the weight receiving portion 16 is empty.
  • the body 10 and the impeller 12 have a first vertical distance D1. This is usually the case of normal power generation or the case of moving power plants in deep water areas.
  • this first vertical distance D1 may make the power generating device unable to move when moving in or out of the port or in other shallow water areas. Therefore, at this time, the weight 18 can be provided at the weight receiving portion 16, which is the injection weight water 18 in this embodiment.
  • the center of gravity of the weight water 18 is offset from the center of gravity of the power generating device in the vertical direction, so that the power generating device will be turned to the left and the impeller 12 will be rotated upward to thereby vertically connect the impeller 12 with the body 10.
  • the distance is reduced from the first vertical distance D1 to the second vertical distance D2, which facilitates the passage of the power generating device through the shallow water region.
  • the amount of weighting water 18 injected depends on the actual situation. It is only necessary to reduce the vertical distance between the impeller 12 and the body 10 to be able to pass through the relevant waters.
  • the connector 14 is substantially horizontal such that the impeller 12 is exposed to the surface of the water. If the portion of the impeller 12 requires maintenance, the impeller 12 that is exposed to the surface of the water also facilitates maintenance of the portion of the impeller 12.
  • Figure 5 is a schematic cross-sectional view of another embodiment of a water flow driven power plant.
  • the embodiment of FIG. 5 differs from the previous embodiment in that the body 20 includes a first weight receiving portion 26 and a second weight receiving portion 27.
  • the first weight receiving portion 26 and the second weight receiving portion 27 are respectively disposed on both sides of the body 20.
  • the water flow drives the power generating device to the left side; when the weight water is injected into the second weight receiving portion 27, the water flow driving power generating device turns to the right side.
  • This embodiment allows the water flow to drive the power generating device to roll sideways in different directions, so that an appropriate direction rollover can be selected according to the underwater condition.
  • the water flow driven power plant includes a plurality of impellers, and thus flipping in different directions will selectively expose different impellers.
  • the above description is made by taking the counterweight water as an example. It should be understood that a solid counterweight may be used in order to roll the power generating device. Therefore, the water flow driven power generation device described herein does not limit the form of the counterweight. As long as the power generating device can be turned sideways to reduce the vertical distance between the impeller 12 and the body 10.
  • the water flow driven power plant is typically anchored to the riverbed or seabed by anchoring techniques.
  • the water flow driven power plant described herein can employ any suitable anchoring technique and will not be discussed in detail herein.
  • a method of reducing the vertical dimension of a water flow driven power generating device is also proposed herein.
  • the water flow driving power generation device can have the same configuration as the water flow power generation device described above.
  • the method is to provide a weight 18 on the body 10, and the center of gravity of the weight 18 is offset from the center of gravity of the power generating device in the vertical direction, thereby causing the power generating device to roll over to reduce the vertical between the impeller 12 and the body 10. distance.
  • the center of gravity of the weight 18 is offset from the center of gravity of the power generating device in the vertical direction, thereby causing the power generating device to roll over to reduce the vertical between the impeller 12 and the body 10. distance.
  • the connector 14 is fixedly coupled to the body 10, the relative positional relationship between the impeller 12 and the body 10 remains unchanged during the rollover of the power plant.
  • the power generating device is turned over by the counterweight to reduce the vertical distance between the impeller and the body, thereby effectively reducing the flow.

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  • 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)
  • Hydraulic Turbines (AREA)

Abstract

La présente invention concerne un appareil de génération d'énergie hydraulique, comprenant un corps, une turbine et une module de réception de contrepoids. Une cavité est ménagée dans le corps pour lui permettre de flotter dans ou sur l'eau. La turbine est raccordée au corps au moyen d'une pièce de raccordement et est disposée sous le corps. La turbine se déplace sous l'impulsion du courant d'eau et actionne ainsi l'unité de génération d'énergie pour générer de l'électricité. Le module de réception de contrepoids est disposé sur le corps de sorte que lorsqu'un contrepoids est appliqué sur le module de réception de contrepoids, le centre de gravité du contrepoids dévie verticalement du centre de gravité de l'appareil de génération d'énergie hydraulique, ce qui amène ce dernier à se retourner, réduisant ainsi la distance verticale entre la turbine et le corps. La présente invention concerne également un procédé d'utilisation d'un contrepoids pour réduire les dimensions verticales d'un appareil de génération d'énergie hydraulique.
PCT/CN2013/087114 2013-11-14 2013-11-14 Appareil de génération d'énergie hydraulique et procédé de réduction de ses dimensions verticales WO2015070410A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
PCT/CN2013/087114 WO2015070410A1 (fr) 2013-11-14 2013-11-14 Appareil de génération d'énergie hydraulique et procédé de réduction de ses dimensions verticales

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Application Number Priority Date Filing Date Title
PCT/CN2013/087114 WO2015070410A1 (fr) 2013-11-14 2013-11-14 Appareil de génération d'énergie hydraulique et procédé de réduction de ses dimensions verticales

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Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230831A (zh) * 2007-01-27 2008-07-30 邓志辉 一种利用海洋波浪能发电的方法及装置
US20100326343A1 (en) * 2009-06-30 2010-12-30 Hunt Turner Mooring system for a tethered hydrokinetic device and an array thereof
CN102171446A (zh) * 2008-08-11 2011-08-31 斯塔特石油公开有限公司 拖曳离岸风力涡轮机的方法和装置
CN102374104A (zh) * 2011-08-29 2012-03-14 东北师范大学 海洋潮流能水平轴自补偿双向整体调向发电装置

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101230831A (zh) * 2007-01-27 2008-07-30 邓志辉 一种利用海洋波浪能发电的方法及装置
CN102171446A (zh) * 2008-08-11 2011-08-31 斯塔特石油公开有限公司 拖曳离岸风力涡轮机的方法和装置
US20100326343A1 (en) * 2009-06-30 2010-12-30 Hunt Turner Mooring system for a tethered hydrokinetic device and an array thereof
CN102374104A (zh) * 2011-08-29 2012-03-14 东北师范大学 海洋潮流能水平轴自补偿双向整体调向发电装置

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