CN102220941A - Karman vortex street power generation device - Google Patents

Karman vortex street power generation device Download PDF

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Publication number
CN102220941A
CN102220941A CN2010101447014A CN201010144701A CN102220941A CN 102220941 A CN102220941 A CN 102220941A CN 2010101447014 A CN2010101447014 A CN 2010101447014A CN 201010144701 A CN201010144701 A CN 201010144701A CN 102220941 A CN102220941 A CN 102220941A
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China
Prior art keywords
vortex
karman
vortex street
karman vortex
generating body
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Pending
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CN2010101447014A
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Chinese (zh)
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李亚平
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Individual
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Individual
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Priority to CN2010101447014A priority Critical patent/CN102220941A/en
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    • 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
    • Y02E10/70—Wind 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
    • Y02E10/70—Wind energy
    • Y02E10/72—Wind turbines with rotation axis in wind direction

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Abstract

The invention discloses a Karman vortex street power generation device which is a new energy device and comprises a cylindrical vortex generating body arranged in a flow guide air tube, an elastic vortex wind resistant piece at the rear part of the cylindrical vortex generating body, and a resonance power generator which is connected with the elastic vortex wind resistant piece through a connecting rod, or comprises the cylindrical vortex generating body arranged in the flow guide air tube, and a piezoelectric element (ceramic) which is packaged in the vortex generating body or installed on a rigid vortex wind resistant piece at the rear. The flow guiding air tube of the Karman vortex street power generation device can be arranged on a vertical rotating base through a rotary disc, and a windward device is arranged. In the device, the wind energy is effectively converted into power for generating electricity by utilizing a Karman vortex street principle. The device is simple and practical, has a wide using application range and is a creationary new energy device.

Description

The Karman vortex street electricity generating device
Technical field
The present invention relates to new energy, particularly is a kind of electricity generating device that utilizes wind energy.
Background technique
When fluid is walked around the non-streamline object, the Karman vortex street paired, that replace the antisymmetry vortex meaning of arranging, sense of rotation is opposite that the object wake flow left and right sides produces.Karman vortex street is a kind of phenomenon that viscous incompressible fluid dynamics is studied.All can produce Karman vortex street during the tube bank of fluid winding flow chimney stalk, tall building, electric wire, oil-piping and heat exchanger.When vortex street occurring, fluid can produce the alternation horizontal force of one-period to object.If the natural frequency of the frequency of power and object is close, will causes resonance, even object is damaged.This vortex street once made the periscope of submarine lose observation ability, and strait Bridge is damaged, and the air preheater bobbin carriage of boiler vibration takes place and breaks.But utilize the character this cycle, alternate of Karman vortex street, can be made into the Karman vortex street flowmeter, determine the speed or the flow of fluid by the shedding frequence of measuring eddy current.When vertically being inserted into vortex generation body in the fluid, fluid is walked around when body takes place can form Karman vortex street, is meeting some requirements down, and it is stable that asymmetric vortex row just can keep, and at this moment, the width d of the frequency f of vortex and flow velocity V and vortex generation body has following relation:
f＝st(v/d)
Wherein st is a Strouhal number, is constant in normal working conditions.
Can therefore, utilize when vortex street occurring, fluid comes the work done power transformation to the periodic alternation horizontal force that object produces, make it to become a kind of new energy? be exactly a very promising problem and invention.
Summary of the invention
The present invention is exactly a kind of electricity generating device that utilizes wind energy.This invention Karman vortex street electricity generating device by name is to constitute with the resonant generator that vortex windage sheet is connected by placing cylindrical vortex generation body and the vortex windage sheet thereafter in the water conservancy diversion air duct and passing through connecting rod.Or by place the cylindrical vortex generation body in the water conservancy diversion air duct and be encapsulated in vortex generation body or thereafter vortex windage sheet on piezoelectric element constitute.The water conservancy diversion air duct places on the vertical rotation base through rotating disk, and wind plant is arranged on it, so that the water conservancy diversion air duct facings the wind all the time.It is the periodicity alternation horizontal force promotion connecting rod to-and-fro motion drive resonant generator generating of Karman vortex street with the vortex that air-flow (being wind) streams garden cylindrical objects generation that the present invention utilizes the Karman vortex street phenomenon, or extruding piezoelectric element such as piezoelectric constant generate electricity, thereby obtain the new energy.This device utilizes reproducible, inexhaustible wind energy power, and method is simple, becomes body, need not safeguard to have wind, windy wide geographic area to install and use substantially.Install changeablely, use has a extensive future.
Description of drawings
Fig. 1 is a structural representation of the present invention.
Fig. 2 is Fig. 1 cross-sectional schematic, and Karman vortex street is arranged among the figure.
Embodiment
As shown in Figure 1 and Figure 2, Karman vortex street electricity generating device of the present invention constitutes through the resonant generator 6 that connecting rod 7 is connected with vortex windage sheet 4 by placing garden cylindricality vortex generation body 2 in the water conservancy diversion air duct 1 and vortex windage sheet thereafter 4 to reach.Vortex windage sheet is a spring sheet herein, can also encapsulate or on rigid vortex whirlwind resistance sheet 4 thereafter piezoelectric element 5 (pottery) is installed and be generated electricity in the cylindrical vortex generation body 2 in water conservancy diversion air duct 1.If the water conservancy diversion air duct 1 of Karman vortex street electricity generating device is placed on the vertical rotation base 7 through rotating disk 6, wind plant 3 is arranged on it.Electricity generating device is generated electricity over against the flow direction of wind all the time always.

Claims (3)

1. the Karman vortex street electricity generating device is characterized in that by the garden cylindricality vortex generation body (2) and elasticity vortex windage sheet (4) thereafter and resonant generator (6) formation that is connected through connecting rod (7) with elasticity vortex windage sheet (4) that place in the water conservancy diversion air duct (1).
2. Karman vortex street electricity generating device is characterized in that by the cylindrical vortex generation body (2) in the water conservancy diversion air duct (1) and is encapsulated in the vortex generation body (2) or the resistance sheet of rigid vortex whirlwind thereafter (4) is gone up the piezoelectric element of installing (5) and constituted.
3. Karman vortex street electricity generating device according to claim 1 and 2 is characterized in that said water conservancy diversion air duct (1) places on the vertical rotation base (7) through rotating disk (6), has wind plant (3) on it.
CN2010101447014A 2010-04-13 2010-04-13 Karman vortex street power generation device Pending CN102220941A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010101447014A CN102220941A (en) 2010-04-13 2010-04-13 Karman vortex street power generation device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010101447014A CN102220941A (en) 2010-04-13 2010-04-13 Karman vortex street power generation device

Publications (1)

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CN102220941A true CN102220941A (en) 2011-10-19

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CN2010101447014A Pending CN102220941A (en) 2010-04-13 2010-04-13 Karman vortex street power generation device

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CN (1) CN102220941A (en)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015155746A1 (en) * 2014-04-11 2015-10-15 Fondazione Istituto Italiano Di Tecnologia Device for harvesting energy from a fluidic flow including a thin film of piezoelectric material
CN105226993A (en) * 2014-06-24 2016-01-06 欣兴电子股份有限公司 Wind power generation plant
CN105386931A (en) * 2014-09-09 2016-03-09 韩万龙 High-altitude controlled Karman vortex street main and auxiliary wing kite wind power generation system
JP5952939B1 (en) * 2015-05-12 2016-07-13 三菱電機エンジニアリング株式会社 Wind frequency component converter and vibration power generator
CN105896874A (en) * 2016-04-09 2016-08-24 哈尔滨工业大学 Wind power generation device based on Karman vortex street principle
CN105953082A (en) * 2016-06-15 2016-09-21 浙江师范大学 Self-powered oil and gas pipeline monitoring device
CN106523247A (en) * 2016-11-23 2017-03-22 青岛理工大学 Surge-induced vibration energy recovery device
CN107201989A (en) * 2017-07-28 2017-09-26 上海应用技术大学 A kind of hot-short wind power generation plant
CN107659203A (en) * 2017-09-28 2018-02-02 中国矿业大学 A kind of deep tunnel roof monitoring wireless sensing node based on wind collecting
CN107859588A (en) * 2017-09-26 2018-03-30 山东科技大学 Oscillating water column auto-excitation type wave energy combined generating device based on Karman vortex street effect
CN108869163A (en) * 2018-06-25 2018-11-23 哈尔滨工程大学 A kind of Karman vortex street generator
CN109818529A (en) * 2019-03-26 2019-05-28 上海大学 A kind of piezoelectricity wind energy collecting device and control method
CN109856370A (en) * 2019-04-10 2019-06-07 吉林建筑大学 Strong wind area actual situation of land resource monitoring system based on piezoelectric material self energizing
CN113922733A (en) * 2021-10-22 2022-01-11 国网山东省电力公司济南市历城区供电公司 Hybrid power generation device for high-voltage electric energy meter
CN117418982A (en) * 2023-12-18 2024-01-19 武汉理工大学三亚科教创新园 Power generation device for ocean wave energy and ocean current energy

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630484A (en) * 1984-05-31 1986-12-23 Nippondenso Co., Ltd. Mass flowmeter
CN2235034Y (en) * 1994-10-31 1996-09-11 王纯良 Wind collecting type wind power generation device
JPH11303726A (en) * 1998-04-23 1999-11-02 Murata Mfg Co Ltd Piezoelectric wind power generator
US20080048455A1 (en) * 2006-08-25 2008-02-28 Matthew Eli Carney Energy capture in flowing fluids

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4630484A (en) * 1984-05-31 1986-12-23 Nippondenso Co., Ltd. Mass flowmeter
CN2235034Y (en) * 1994-10-31 1996-09-11 王纯良 Wind collecting type wind power generation device
JPH11303726A (en) * 1998-04-23 1999-11-02 Murata Mfg Co Ltd Piezoelectric wind power generator
US20080048455A1 (en) * 2006-08-25 2008-02-28 Matthew Eli Carney Energy capture in flowing fluids

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2015155746A1 (en) * 2014-04-11 2015-10-15 Fondazione Istituto Italiano Di Tecnologia Device for harvesting energy from a fluidic flow including a thin film of piezoelectric material
US10153713B2 (en) 2014-04-11 2018-12-11 Fondzione Istituto Italiano Di Tecnologia Device for harvesting energy from a fluidic flow including a thin film of piezoelectric material
CN105226993A (en) * 2014-06-24 2016-01-06 欣兴电子股份有限公司 Wind power generation plant
CN105386931A (en) * 2014-09-09 2016-03-09 韩万龙 High-altitude controlled Karman vortex street main and auxiliary wing kite wind power generation system
JP5952939B1 (en) * 2015-05-12 2016-07-13 三菱電機エンジニアリング株式会社 Wind frequency component converter and vibration power generator
JP2016213999A (en) * 2015-05-12 2016-12-15 三菱電機エンジニアリング株式会社 Wind frequency component converter and vibration power generator
CN105896874B (en) * 2016-04-09 2018-02-23 哈尔滨工业大学 Wind power generation plant based on Karman vortex street principle
CN105896874A (en) * 2016-04-09 2016-08-24 哈尔滨工业大学 Wind power generation device based on Karman vortex street principle
CN105953082A (en) * 2016-06-15 2016-09-21 浙江师范大学 Self-powered oil and gas pipeline monitoring device
CN106523247A (en) * 2016-11-23 2017-03-22 青岛理工大学 Surge-induced vibration energy recovery device
CN107201989A (en) * 2017-07-28 2017-09-26 上海应用技术大学 A kind of hot-short wind power generation plant
CN107859588A (en) * 2017-09-26 2018-03-30 山东科技大学 Oscillating water column auto-excitation type wave energy combined generating device based on Karman vortex street effect
CN107659203A (en) * 2017-09-28 2018-02-02 中国矿业大学 A kind of deep tunnel roof monitoring wireless sensing node based on wind collecting
CN108869163A (en) * 2018-06-25 2018-11-23 哈尔滨工程大学 A kind of Karman vortex street generator
CN109818529A (en) * 2019-03-26 2019-05-28 上海大学 A kind of piezoelectricity wind energy collecting device and control method
CN109818529B (en) * 2019-03-26 2020-02-14 上海大学 Piezoelectric wind energy collector and control method
CN109856370A (en) * 2019-04-10 2019-06-07 吉林建筑大学 Strong wind area actual situation of land resource monitoring system based on piezoelectric material self energizing
CN113922733A (en) * 2021-10-22 2022-01-11 国网山东省电力公司济南市历城区供电公司 Hybrid power generation device for high-voltage electric energy meter
CN113922733B (en) * 2021-10-22 2024-05-17 国网山东省电力公司济南市历城区供电公司 Hybrid power generation device for high-voltage electric energy meter
CN117418982A (en) * 2023-12-18 2024-01-19 武汉理工大学三亚科教创新园 Power generation device for ocean wave energy and ocean current energy
CN117418982B (en) * 2023-12-18 2024-03-22 武汉理工大学三亚科教创新园 Power generation device for ocean wave energy and ocean current energy

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Application publication date: 20111019