TWI494504B - Array kinetic energy capture device - Google Patents
Array kinetic energy capture device Download PDFInfo
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- TWI494504B TWI494504B TW100120856A TW100120856A TWI494504B TW I494504 B TWI494504 B TW I494504B TW 100120856 A TW100120856 A TW 100120856A TW 100120856 A TW100120856 A TW 100120856A TW I494504 B TWI494504 B TW I494504B
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- kinetic energy
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- extraction device
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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
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- General Electrical Machinery Utilizing Piezoelectricity, Electrostriction Or Magnetostriction (AREA)
Description
本發明是有關於一種動能擷取器,特別是指一種藉由擾流產生動能的陣列式動能擷取裝置。The invention relates to a kinetic energy extractor, in particular to an array type kinetic energy extracting device which generates kinetic energy by turbulence.
在全球因應氣候變遷與保護環境的呼聲中,再生能源因為具有潔淨、低溫室氣體排放及自產能源的特性,愈來愈多的國家將再生能源列為未來能源政策考慮重點之一,因此我國的能源政策,也逐步思考如何發展再生能源。In response to climate change and environmental protection in the world, renewable energy is characterized by clean, low greenhouse gas emissions and self-produced energy. More and more countries regard renewable energy as one of the priorities of future energy policies. The energy policy is also gradually thinking about how to develop renewable energy.
傳統的小型風力發電機由於使用風車葉,因而需要較大的空間運作,要遠離人口稠密的地區,且在風速每秒達到4米,才能夠產生電力,待風速增至每秒7米,才能有效發電。但全球大部份城市的平均風速只有每秒5米,在受到風速限制的情形下,傳統小型風力發電機只有20%-40%的時間可以運作。Traditional small wind turbines require large space to operate due to the use of windmill blades. They must be kept away from densely populated areas and can generate electricity when the wind speed reaches 4 meters per second. The wind speed can be increased to 7 meters per second. Effective power generation. However, the average wind speed in most cities around the world is only 5 meters per second. In the case of wind speed limitation, traditional small wind turbines can only operate 20%-40% of the time.
為了改善前述缺失,本案申請人先前提申有第97146198號案,主要是提供一種只需存在於有流體流動的環境,就能自力發電的能量擷取器,藉此,不但可以再生能源,且能達到節能省電的環保需求。惟,本案發明人並不以此為滿足,仍秉持著精益求精的精神,以提升發電效益為目標,積極潛心加以研究開發。In order to improve the aforementioned deficiency, the applicant of the present application has previously filed the case of No. 97146198, mainly to provide an energy extractor that can generate electricity by itself only in the environment of fluid flow, thereby not only renewable energy, but also It can meet the environmental protection needs of energy saving. However, the inventor of this case did not satisfy this, but still adhered to the spirit of excellence, with the goal of improving power generation efficiency, and actively engaged in research and development.
因此,本發明之目的,即在提供一種可以提升振動能及發電效益的陣列式動能擷取裝置。Accordingly, it is an object of the present invention to provide an array type kinetic energy extraction device that can improve vibration energy and power generation benefits.
於是,本發明的陣列式動能擷取裝置,包含一基體,及數壓電元件。該基體具有陣列式排列的數條流道,每一流道分別具有供流體進、出的一入口與一出口。該等壓電元件,分別相對該流道設置在該基體內,且迎向流動中的流體而轉換動能為電能。Thus, the array type kinetic energy extraction device of the present invention comprises a substrate and a plurality of piezoelectric elements. The substrate has a plurality of flow channels arranged in an array, each flow path having an inlet and an outlet for fluid to enter and exit, respectively. The piezoelectric elements are respectively disposed in the substrate with respect to the flow channel, and converge to the flowing fluid to convert the kinetic energy into electrical energy.
本發明的功效是利用陣列的排列方式,加速每一流道內的流體流速,及提升產出的電能量,進而達到提升振動能及發電效益的目的。The function of the invention is to utilize the arrangement of the arrays, accelerate the fluid flow rate in each flow channel, and increase the output electrical energy, thereby achieving the purpose of improving vibration energy and power generation efficiency.
有關本發明之前述及其他技術內容、特點與功效,在以下配合參考圖式之一較佳實施例的詳細說明中,將可清楚的呈現。The above and other technical contents, features and advantages of the present invention will be apparent from the following detailed description of the preferred embodiments.
參閱圖1、圖2,及圖3,本發明陣列式動能擷取裝置的一較佳實施例包含一基體2、數壓電元件4,及數擾流件5。Referring to Figures 1, 2, and 3, a preferred embodiment of the arrayed kinetic energy extraction device of the present invention comprises a substrate 2, a number of piezoelectric elements 4, and a number of spoilers 5.
該基體2具有區隔成數條流道20的數牆壁21、形在該等牆壁21一端的一匯流口22,及一頸縮段23。該等流道20呈陣列式排列(本較佳實施例為3×3的陣列),並分別具有形成在二端且與外界連通的一入口201與一出口202。鄰接每一流道20的牆壁21分別形成有一凹部211。該匯流口22的面積範圍涵蓋所有入口201,且用於導引流體流向該等入口201。該頸縮段23形成在該匯流口22與該等入口201間,且斷面積由鄰接該匯流口22的一端朝鄰接該等入口201的另一端逐漸縮小。The base 2 has a plurality of walls 21 partitioned into a plurality of flow passages 20, a confluence opening 22 formed at one end of the walls 21, and a necked portion 23. The flow channels 20 are arranged in an array (the preferred embodiment is a 3×3 array), and each has an inlet 201 and an outlet 202 formed at two ends and communicating with the outside. A wall 211 adjacent to each flow path 20 is formed with a recess 211, respectively. The area of the manifold 22 covers all of the inlets 201 and is used to direct fluid flow to the inlets 201. The necking section 23 is formed between the inlet port 22 and the inlets 201, and the sectional area is gradually reduced from the end adjacent to the inlet port 22 toward the other end adjacent to the inlets 201.
該等壓電元件4分別相對該流道20封裝在該牆壁21的凹部211內,且迎向流動中的流體而轉換動能為電能。值得一提的是,形成在相鄰流道20間的凹部211分別能夠上、下容納有二壓電元件4。The piezoelectric elements 4 are respectively enclosed in the recesses 211 of the wall 21 with respect to the flow path 20, and converge to the flowing fluid to convert the kinetic energy into electrical energy. It is to be noted that the concave portions 211 formed between the adjacent flow paths 20 can accommodate the piezoelectric elements 4 up and down, respectively.
該壓電元件4是以壓電材料(Piezoelectric Materials)製成,是一種具電能與機械能相互轉換的材料,由於壓電材料的晶體排列具有方向性,當沿著一定的方向施加外力,晶體發生形變的同時,其中之電耦極矩會產生重新排列現象,導致介質表面帶有電荷,即會產生電壓。The piezoelectric element 4 is made of piezoelectric material (Piezoelectric Materials), and is a material that converts electrical energy and mechanical energy. Since the crystal arrangement of the piezoelectric material has directionality, when an external force is applied along a certain direction, the crystal At the same time of deformation, the electric coupling pole moments will be rearranged, causing a charge on the surface of the medium, which will generate a voltage.
該等擾流件5分別沿水平方向相對設置在該基體2的流道20內,並分別具有朝向該壓電元件4的一斜面51。該斜面51由鄰近該入口201的一端朝向鄰近該出口202的另一端傾斜。The spoilers 5 are respectively disposed in the horizontal direction of the flow path 20 of the base body 2 and have a slope 51 facing the piezoelectric element 4, respectively. The slope 51 is inclined from an end adjacent to the inlet 201 toward the other end adjacent to the outlet 202.
依據前述,當流體匯聚於該基體1的匯流口22,而由等入口201、該等出口202進、出呈陣列排列的該等流道20時,流體會受阻於位於該壓電元件4下方的擾流件5,而產生大幅度的波動及擾流,藉此,迎向流體的壓電元件4,會隨流體的波動而產生大幅度的振動,進而轉換動能為電能,達到發電的效果。According to the foregoing, when the fluid converges on the manifold 22 of the substrate 1 and the inlets 201 and the outlets 202 enter and exit the channels 20 arranged in an array, the fluid is blocked from being located below the piezoelectric element 4. The spoiler 5 generates a large fluctuation and turbulence, whereby the piezoelectric element 4 that greets the fluid generates a large vibration accompanying the fluctuation of the fluid, thereby converting the kinetic energy into electrical energy to achieve the power generation effect. .
值得一提的是,依據質量守恆定律:A1 V1 =A2 V2 It is worth mentioning that according to the law of conservation of mass: A 1 V 1 = A 2 V 2
A1 :匯流口22的截面積A 1 : cross-sectional area of the manifold 22
V1 :匯流口22內流體的流速V 1 : flow rate of the fluid in the manifold 22
A2 :流道20的截面積A 2 : cross-sectional area of the flow path 20
V2 :流道20內流體的流速V 2 : flow rate of the fluid in the flow channel 20
假設流體進入該匯流口22時的流速是2m/s~4m/s,當流體由該匯流口22經該頸縮段23時,會因為斷面縮減,而對流體產生一壓縮效果,使流體的流速加快,藉此,由於該匯流口22截面積約相當於每一流道20截面積的9倍大,依據前述公式A1 V1 =A2 V2 ,得9V1 =1V2 ,能夠計算出V2 =9*2~9*4,得知進入每一流道20內的流速大幅提升至18m/s~36m/s。顯然,本發明可以使流速大幅提升,而遠遠超出先前技術中發電時所需流速每秒7米的標準。It is assumed that the flow rate of the fluid entering the outlet port 22 is 2 m/s to 4 m/s. When the fluid passes through the necking section 23, the fluid will have a compression effect on the fluid due to the reduction of the section. The flow rate is increased, whereby the cross-sectional area of the manifold 22 is approximately 9 times larger than the cross-sectional area of each channel 20, and according to the above formula A 1 V 1 = A 2 V 2 , 9V 1 =1 V 2 can be calculated. By V 2 =9*2~9*4, it is known that the flow rate into each flow channel 20 is greatly increased to 18 m/s to 36 m/s. Obviously, the present invention can greatly increase the flow rate, far exceeding the standard of 7 meters per second required for power generation in the prior art.
據上所述可知,本發明之陣列式動能擷取裝置具有下列優點及功效:According to the above description, the array type kinetic energy extraction device of the present invention has the following advantages and effects:
本發明可以利用陣列的排列方式,及壓縮流體的特殊效果,加速每一流道20內的流體流速,及以多數個壓電元件4提升產出的電能量,不但能夠在流速每秒2米的情形下,產生遠遠超出先前技術中發電時所需流速每秒7米的標準,達到再生能源、節能省電的環保需求,且能夠以該擾流件5,使流體通過該擾流件5後形成流體壓力之明顯波動,進而達到提升振動能及發電效益的目的,使本發明更具有產品競爭力。The present invention can utilize the arrangement of arrays and the special effects of compressing fluids to accelerate the flow velocity of fluids in each flow channel 20, and boost the generated electrical energy by a plurality of piezoelectric elements 4, not only at a flow rate of 2 meters per second. In this case, a standard far exceeding the required flow rate of 7 meters per second in power generation in the prior art is generated, which meets the environmental protection requirements of renewable energy, energy saving, and can pass the spoiler 5 through the spoiler 5 After the formation of significant fluctuations in fluid pressure, thereby achieving the purpose of improving vibration energy and power generation efficiency, the invention is more competitive in products.
惟以上所述者,僅為本發明之較佳實施例而已,當不能以此限定本發明實施之範圍,即大凡依本發明申請專利範圍及發明說明內容所作之簡單的等效變化與修飾,皆仍屬本發明專利涵蓋之範圍內。The above is only the preferred embodiment of the present invention, and the scope of the invention is not limited thereto, that is, the simple equivalent changes and modifications made by the scope of the invention and the description of the invention are All remain within the scope of the invention patent.
2‧‧‧基體2‧‧‧ base
20‧‧‧流道20‧‧‧ flow path
201‧‧‧入口201‧‧‧ entrance
202‧‧‧出口202‧‧‧Export
21‧‧‧牆壁21‧‧‧ wall
211‧‧‧凹部211‧‧‧ recess
22‧‧‧匯流口22‧‧‧Confluence
23‧‧‧頸縮段23‧‧‧Neck section
4‧‧‧壓電元件4‧‧‧Piezoelectric components
5‧‧‧擾流件5‧‧‧ spoiler
51‧‧‧斜面51‧‧‧Bevel
圖1是一立體圖,說明本發明一陣列式動能擷取裝置 的一較佳實施例;圖2是該較佳實施例的一剖視圖;及圖3是該較佳實施例的另一剖視圖。1 is a perspective view showing an array type kinetic energy extracting device of the present invention A preferred embodiment of the present invention; FIG. 2 is a cross-sectional view of the preferred embodiment; and FIG. 3 is another cross-sectional view of the preferred embodiment.
2‧‧‧基體2‧‧‧ base
20‧‧‧流道20‧‧‧ flow path
201‧‧‧入口201‧‧‧ entrance
202‧‧‧出口202‧‧‧Export
21‧‧‧牆壁21‧‧‧ wall
211‧‧‧凹部211‧‧‧ recess
22‧‧‧匯流口22‧‧‧Confluence
23‧‧‧頸縮段23‧‧‧Neck section
4‧‧‧壓電元件4‧‧‧Piezoelectric components
5‧‧‧擾流件5‧‧‧ spoiler
51‧‧‧斜面51‧‧‧Bevel
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TW287329B (en) * | 1994-02-02 | 1996-10-01 | Hansa Metallwerke Ag |
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TW287329B (en) * | 1994-02-02 | 1996-10-01 | Hansa Metallwerke Ag |
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