JPH0521663Y2 - - Google Patents
Info
- Publication number
- JPH0521663Y2 JPH0521663Y2 JP1989004955U JP495589U JPH0521663Y2 JP H0521663 Y2 JPH0521663 Y2 JP H0521663Y2 JP 1989004955 U JP1989004955 U JP 1989004955U JP 495589 U JP495589 U JP 495589U JP H0521663 Y2 JPH0521663 Y2 JP H0521663Y2
- Authority
- JP
- Japan
- Prior art keywords
- fixed
- rotating shaft
- bearing
- water
- generator
- Prior art date
- Legal status (The legal status 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 status listed.)
- Expired - Lifetime
Links
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 43
- 238000010248 power generation Methods 0.000 description 5
- 238000009434 installation Methods 0.000 description 4
- 239000002184 metal Substances 0.000 description 3
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- 230000003247 decreasing effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
Classifications
-
- 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
Landscapes
- Hydraulic Turbines (AREA)
- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Description
【考案の詳細な説明】
この考案は潮流用完全水没型ダリウス形水車発
電装置に係り、更に詳述すれば、潮流のある海底
に固定した発電機を自起動が可能な三羽根構成の
ダリウス形水車で回動せしめ潮流が有する運動の
エネルギーを電気エネルギーに変換するようにし
た潮流用完全水没型ダリウス形水車発電装置に関
するものである。[Detailed description of the invention] This invention relates to a completely submerged Darrieus-type water turbine generator for tidal currents.More specifically, it is a Darrieus-type generator with three blades that can self-start a generator fixed on the seabed with tidal currents. This invention relates to a completely submerged type Darius-type water turbine generator for tidal currents, which is rotated by a water turbine and converts the kinetic energy of the tidal currents into electrical energy.
潮流が有する運動のエネルギーを電気エネルギ
ーに変換する潮流発電においては、潮流の特徴で
ある潮流の方向の変化に対応し、かつ有効にエネ
ルギーを回収する手段として、潮の流れの方向に
無関係に回転方向が一定で比較的効率の良いダリ
ウス形水車を用いることが好しい。 In tidal current power generation, which converts the kinetic energy of tidal currents into electrical energy, it is possible to respond to changes in the direction of tidal currents, which is a characteristic of tidal currents, and to effectively recover energy. It is preferable to use a Darrieus type water turbine, which has a constant direction and is relatively efficient.
ダリウス形水車を用いた潮流発電装置として
は、水面上に浮上または水面下に半潜水状態にお
かれたフロートの上方にフロートフレームを設
け、この上に発電機を設置し、この発電機の回転
軸に結合し前記フレームより下方に延在して水中
に没する回転軸にダリウス形水車を取付けた構成
のものが公知である（例えば実開昭58−64867号
公報）。しかし、このようにフロート型の場合、
潮の干満差の大きい個所への設置はフロートの上
下移動が大きくアンカー等繋留装置に事故が発生
し易く、船の航行の障害になり、水車が水面に近
いと波動による影響を受け易く、又、浮遊物等の
影響によつて装置の故障等の事故が発生する場合
があり、更に大容量の発電が不可能である等の欠
点があつた。 A tidal current power generation device using a Darrieus type water turbine has a float frame placed above the float that is floating on the water surface or semi-submerged below the water surface, a generator is installed on top of the float frame, and the generator is rotated. A configuration in which a Darius-type water turbine is attached to a rotating shaft that is connected to a shaft, extends below the frame, and is submerged in water is known (for example, Japanese Utility Model Application Publication No. 58-64867). However, in the case of a float type like this,
Installation in a location with a large tidal difference is likely to cause the float to move up and down, causing accidents with anchors and other mooring devices, which can impede ship navigation. , accidents such as failure of the equipment may occur due to the influence of floating objects, etc., and there are also disadvantages such as the inability to generate large amounts of power.
また、半潜水状に水没し、海底に固定された波
力発電装置として特開昭57−46068号公報が知ら
れている。しかし、この波力発電装置は、上部が
海上に出るので船の航行の障害になるのみなら
ず、潮の干満の差が大きい場所での設置は不適で
ある。 Furthermore, Japanese Patent Laid-Open No. 57-46068 is known as a wave power generation device that is semi-submerged in water and fixed to the seabed. However, since the upper part of this wave power generation device is exposed to the sea, it not only obstructs the navigation of ships, but also is not suitable for installation in places with large tidal differences.
この考案は上述した欠点を除去することを目的
とするもので、その特徴とするところは、海底に
直接固定したベース上に固定された水密発電機
と、前記ベース上に複数の支柱材を介して固定さ
れた軸受と、該軸受の上端のコロ軸受と下端のス
ラスト軸受とによつて軸支されると共にオイルシ
ールによつて水密状態で封止された回転軸と、該
回転軸の下端と前記水密発電機の回転軸とを結合
する増速機と、前記回転軸の上端に固定された中
間軸と、該中間軸に一定間隔を介して固定された
一対の翼取付フレームと、該翼取付フレーム間に
断面を同じ方向に向け固定された翼形断面形状を
した複数枚の円弧翼とを具備し、装置全体が船の
航行の支障とならない深さまで完全に水没したこ
とを特徴とする潮流用完全水没型ダリウス形水車
発電装置を提供するものである。 This invention aims to eliminate the above-mentioned drawbacks, and its features include a watertight generator fixed on a base directly fixed to the seabed, and a power generator mounted on the base via multiple support members. a rotating shaft supported by a roller bearing at the upper end of the bearing and a thrust bearing at the lower end and sealed in a watertight state by an oil seal; a speed increaser coupled to the rotating shaft of the watertight generator; an intermediate shaft fixed to the upper end of the rotating shaft; a pair of wing attachment frames fixed to the intermediate shaft at a constant interval; and the wing. It is characterized in that it is equipped with a plurality of arcuate wings with an airfoil cross-sectional shape fixed in the same direction between the mounting frames, and the entire device is completely submerged in water to a depth that does not interfere with the navigation of the ship. The present invention provides a completely submerged Darius-type water turbine generator for tidal currents.
以下この考案を図に示す一実施例について詳述
する。 An embodiment of this invention shown in the drawings will be described in detail below.
第１図はこの考案の潮流用完全水没型ダリウス
形水車発電装置の構成を示すもので、１は海底の
土木工事により水平に取付けられたベースで、こ
のベース上には３本あるいは４本の支柱材２をも
つて軸受３が取付けられている。この軸受３の両
端には複式スラスト軸受４、コロ軸受５およびス
ラスト軸受４の外側にはオイルシール６が、ま
た、コロ軸受５の外側には軸封部材８に取付けら
れたオイルシール７が取付けられている。そし
て、前記２つの軸受４，５には回転軸９が貫通し
て軸支されると共にオイルシール６，７によつて
水密に保たれている。この回転軸９の下端は前記
ベース１上に固定した水密型の発電機１０の回転
軸と増速機１１および軸継手１２を介して連結さ
れている。また、回転軸９の上端は軸継手１３を
介して中間軸１４が連結され、この中間軸１４の
上下端には円板状の一対の翼取付フレーム１５，
１６が水平に取付けられている。第２図に示すよ
うに、このフレーム１５，１６間に後述する断面
構成の３枚の円弧翼１７がフレーム１５，１６の
外周を３等分する位置で前記中間軸１４の中心か
ら同一半径（γ）面上に断面を同じ方向に向けて
取付けられている。このように３枚の円弧翼１７
を用いることにより１枚および２枚の場合に比し
回転力の変動は安定する。 Figure 1 shows the configuration of the completely submersible Darius-type water turbine generator for tidal current of this invention. 1 is a base installed horizontally by civil engineering work on the seabed, and on this base there are 3 or 4 turbines. A bearing 3 is attached with a support 2. A dual thrust bearing 4 is attached to both ends of the bearing 3, an oil seal 6 is attached to the outer side of the roller bearing 5, and an oil seal 7 attached to the shaft sealing member 8 is attached to the outer side of the roller bearing 5. It is being A rotary shaft 9 passes through the two bearings 4 and 5 and is rotatably supported therein, and is kept watertight by oil seals 6 and 7. The lower end of this rotating shaft 9 is connected to the rotating shaft of a watertight generator 10 fixed on the base 1 via a speed increaser 11 and a shaft coupling 12. An intermediate shaft 14 is connected to the upper end of the rotating shaft 9 via a shaft joint 13, and a pair of disc-shaped blade attachment frames 15 are connected to the upper and lower ends of the intermediate shaft 14.
16 is mounted horizontally. As shown in FIG. 2, between the frames 15 and 16, three arcuate blades 17 having a cross-sectional configuration to be described later are located at positions dividing the outer circumference of the frames 15 and 16 into three equal radius ( γ) are mounted on the plane with the cross sections facing the same direction. In this way, three arcuate wings 17
By using this, fluctuations in rotational force are more stable than in the case of one or two plates.
円弧翼１７は、第３図ａ，ｂに示すように、断
面が翼形をなす中空の金属板１９と、該金属板１
９の両端と内部の所望間隔毎に配置固定された複
数のリブ１８と、該リブ１８に形成された２つの
孔内に挿通された２本の支軸１７Ａとより構成さ
れている。 As shown in FIGS. 3a and 3b, the arc blade 17 includes a hollow metal plate 19 having an airfoil cross section, and the metal plate 1.
It is composed of a plurality of ribs 18 arranged and fixed at desired intervals on both ends and inside of the rib 9, and two support shafts 17A inserted into two holes formed in the ribs 18.
そして、金属板１９の両端に固定されたリブ１
８より突出する支軸１７Ａの両端雄ねじ部を前記
翼取付フレーム１５，１６より突出させ、この雄
ねじ部にナツトを螺合することにより円弧翼１７
を翼取付フレーム１５，１６に取付ける。 Ribs 1 fixed to both ends of the metal plate 19
The male threaded portions at both ends of the support shaft 17A protruding from the wing attachment frames 15 and 16 are made to protrude from the wing mounting frames 15 and 16, and a nut is screwed into the male threaded portions.
are attached to the wing attachment frames 15 and 16.
尚、中間軸１４、翼取付フレーム１５，１６お
よび円弧翼１７で構成されるダリウス形水車部２
０は、流体の保有するエネルギーを回収する重要
な部分であり、流量、水深等の設置個所の条件に
より、翼の形状は前述の円弧型が直線形より、出
力係数を大周速比入（λ＝ωγ／υ但しυ：液体
の流速、γ：水車の半径、ω：水車の角速度）が
１〜５流量が0.25〜0.33m2／ｓの範囲において効
率がよい。 Note that the Darrieus water turbine section 2 is composed of an intermediate shaft 14, blade attachment frames 15 and 16, and arcuate blades 17.
0 is an important part that recovers the energy held by the fluid, and depending on the conditions of the installation location such as flow rate and water depth, the shape of the blade is determined by changing the output coefficient to the large circumferential speed ratio ( λ=ωγ/υwhere υ: liquid flow rate, γ: radius of the water wheel, ω: angular velocity of the water wheel) is 1 to 5. Efficiency is good when the flow rate is in the range of 0.25 to 0.33 m 2 /s.
この考案の潮流用完全水没型ダリウス形水車発
電装置は以上の如く構成されており、第２図に示
すように水流が矢印Ｂのとき、水車部２０は周知
の理論により自起動により矢印Ｃの方向に回転す
る。 The completely submerged Darrieus type water turbine generator for tidal current of this invention is constructed as described above, and when the water flow is in the direction of arrow B as shown in FIG. Rotate in the direction.
ここで、空中におけるダリウス形風車の風車軸
出力Ｐは、
Ｐ＝１／2ρAυ3μ
の関係式であらわされる。この前式において、
ρ：空気密度 Ａ：風の通過面積
υ：風速 μ：効率
である。したがつて、風車の出力は空気密度、通
過面積、効率に比例し、風速の３乗に比例するこ
とが明らかであり、このようなダリウス形風車を
水中において回転させるようにした一種のダリウ
ス形の水車においては、水の密度は空気の密度に
対し約1000倍であるので、上述の前式により仮に
通過面積、効率を同じとしても同じ出力Ｐを得る
ためには水速は風速の約1/10で充分である。ま
た、このダリウス形の風車においては通常風速４
〜6m／ｓに対し、自然海流、河川流の水速は0.6
〜1.0m／ｓであるので、風車と同じ出力を得る
ための水の通過面積は約1/3〜1/4でよく、風車の
場合に比し小形のもので充分であり、そのため海
底あるいは水底に設けるベース１の基礎工事も簡
単に出来る。 Here, the wind turbine shaft output P of the Darius type wind turbine in the air is expressed by the relational expression: P=1/2ρAυ 3 μ. In the previous equation, ρ: Air density A: Wind passage area υ: Wind speed μ: Efficiency. Therefore, it is clear that the output of a wind turbine is proportional to the air density, passage area, and efficiency, and proportional to the cube of the wind speed. In a water turbine, the density of water is approximately 1000 times the density of air, so according to the above equation, even if the passing area and efficiency are the same, in order to obtain the same output P, the water speed must be approximately 1 times the wind speed. /10 is sufficient. In addition, this Darrieus type wind turbine normally has a wind speed of 4
~6m/s, whereas the water speed of natural ocean currents and river flows is 0.6
~1.0 m/s, so to obtain the same output as a wind turbine, the area through which the water passes should be about 1/3 to 1/4, and a smaller one is sufficient compared to a wind turbine, so it is possible to Foundation work for base 1 installed at the bottom of the water can be done easily.
一般にダリウス形風車においては回転数が大き
いので遠心力を小さくするため、翼を帯状とし回
転軸の中央部分では翼の取付位置の半径を大きく
し回転軸の両端においては半径を小さくしたトロ
ポスキエン（縄跳びの綱の動き）の形状をさせて
いるが、水車として使用する場合には中間軸１４
の回転数も小さいので、中間軸１４に平行に円弧
翼１７を取付ければよく、前記円弧翼１７の面積
を大きくして水の通過面積を大きくすることがで
きる。 Darrieus-type wind turbines generally have a high rotational speed, so in order to reduce the centrifugal force, the blades are band-shaped, and the radius at the blade attachment point is increased at the center of the rotation axis, and the radius is decreased at both ends of the rotation axis. (rope movement), but when used as a water turbine, the intermediate shaft 14
Since the number of rotations is also small, it is sufficient to attach the arcuate blades 17 in parallel to the intermediate shaft 14, and by increasing the area of the arcuate blades 17, the area through which water passes can be increased.
いま、トロポスキエン型のダリウス形風車の効
率を35.5％とし、その効率をそのまま水車にあて
はめると、水車の場合は効率が41.4％となり、単
位通過面積当りの水車出力は水速1m／ｓのとき、
0.207kw／cm2となる。したがつて水車２０の円弧
翼１７の中間軸１４からの取付半径をγ＝5m、
円弧翼１７の高さＨ＝5mの場合、定格水速1m／
ｓにおいては10kwの水車出力が得られる。設置
に当つては水深によつて変化する水速の最適な位
置で、水面からの水深が船舶の航行の障害になら
ない位置にベース１を固定する完全水没型とし、
発電機１０からの出力は耐圧の大きい防水性ケー
ブルを介して地上に電送して使用する。 Now, if we assume that the efficiency of the Troposchien-type Darius wind turbine is 35.5% and apply that efficiency directly to the water turbine, the efficiency of the water turbine becomes 41.4%, and the output of the water turbine per unit passing area is when the water speed is 1 m/s.
It becomes 0.207kw/ cm2 . Therefore, the installation radius of the arc blade 17 of the water turbine 20 from the intermediate shaft 14 is γ = 5 m,
When the height H of the arcuate blade 17 is 5 m, the rated water speed is 1 m/
In s, a water turbine output of 10kw can be obtained. When installing the base 1, it will be a completely submerged type that fixes the base 1 at an optimal position where the water speed changes depending on the water depth, and where the water depth from the water surface does not impede the navigation of the ship.
The output from the generator 10 is used by being transmitted to the ground via a waterproof cable with high voltage resistance.
本考案は上記したように、ダリウス水車と水密
発電機に接続された増速機とを連結する回転軸を
上端にコロ軸受を、下端にスラスト軸受を有する
軸受によつて軸支したので、回転軸の軸心と直交
する方向からの潮流に対して前記回転軸が傾くの
を防止でき、従つて、回転軸が偏心回転すること
がなく水車の出力を効率よく発電機に伝達するこ
とができる。また、従来におけるフロート式の潮
流発電装置に比し満潮時海面位より水車上部が４
〜5m以下になる位置に設置することで最大干満
差が3mあつても波の影響を受けることがなく、
小型船舶の通航にも支障がなく、浮遊物等による
影響を未然に防ぐことができ、又、海底に設置す
るので大容量の発電が可能である等の効果を有す
る。 As mentioned above, in this invention, the rotating shaft that connects the Darius turbine and the speed increaser connected to the watertight generator is supported by a roller bearing at the upper end and a thrust bearing at the lower end, so that the rotation It is possible to prevent the rotating shaft from tilting with respect to the current from a direction perpendicular to the axis of the shaft, and therefore, the output of the water turbine can be efficiently transmitted to the generator without eccentric rotation of the rotating shaft. . In addition, compared to conventional float-type tidal current power generation devices, the upper part of the water turbine is 4.5 m above sea level at high tide.
By installing it at a location where it is less than ~5m, it will not be affected by waves even if the maximum tidal difference is 3m.
It does not impede the passage of small ships, prevents the effects of floating objects, etc., and has the advantage of being able to generate large amounts of power because it is installed on the seabed.
図はいずれもこの考案の一実施例を示すもの
で、第１図は水車発電装置の側面図、第２図は第
１図のＡ−Ａ断線における水車の断面図、第３図
ａは円弧翼の拡大断面図、第３図ｂは円弧翼のフ
レーム構成を示す側面図である。
１……ベース、２……支柱材、３……軸受、９
……回転軸、１０……発電機、１１……増速機、
１４……中間軸、１５，１６……翼取付フレー
ム、１７……円弧翼、２０……ダリウス形水車
部。
The figures all show one embodiment of this invention; Fig. 1 is a side view of the water turbine generator, Fig. 2 is a sectional view of the water turbine taken along line A-A in Fig. 1, and Fig. 3 a is a circular arc. FIG. 3b, which is an enlarged cross-sectional view of the wing, is a side view showing the frame structure of the arcuate wing. 1... Base, 2... Support material, 3... Bearing, 9
... Rotating shaft, 10 ... Generator, 11 ... Speed increaser,
14... Intermediate shaft, 15, 16... Blade mounting frame, 17... Arc blade, 20... Darius type water turbine section.
Claims (1)
密発電機１０と、前記ベース１上に複数の支柱材
２を介して固定された軸受３と、該軸受３の上端
のコロ軸受５と下端のスラスト軸受４とによつて
軸支されると共にオイルシール６，７によつて水
密状態で封止された回転軸９と、該回転軸９の下
端と前記水密発電機１０の回転軸とを結合する増
速機１１と、前記回転軸９の上端に固定された中
間軸１４と、該中間軸１４に一定間隔を介して固
定された一対の翼取付フレーム１５，１６と、該
翼取付フレーム１５，１６間に断面を同じ方向に
向け固定された翼形断面形状をした複数枚の円弧
翼１７とを具備したことを特徴とする潮流用完全
水没型ダリウス形水車発電装置。 A watertight generator 10 is fixed on a base 1 directly fixed to the seabed, a bearing 3 is fixed on the base 1 via a plurality of support members 2, a roller bearing 5 on the upper end of the bearing 3, and a roller bearing 5 on the lower end of the bearing 3. A rotating shaft 9 is supported by a thrust bearing 4 and sealed in a watertight state by oil seals 6 and 7, and the lower end of the rotating shaft 9 is connected to the rotating shaft of the watertight generator 10. an intermediate shaft 14 fixed to the upper end of the rotating shaft 9; a pair of blade attachment frames 15 and 16 fixed to the intermediate shaft 14 at a constant interval; and the blade attachment frame 15. , 16, and a plurality of arcuate blades 17 each having a fixed airfoil cross-section with their cross-sections oriented in the same direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989004955U JPH0521663Y2 (en) | 1989-01-19 | 1989-01-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1989004955U JPH0521663Y2 (en) | 1989-01-19 | 1989-01-19 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01118164U JPH01118164U (en) | 1989-08-09 |
| JPH0521663Y2 true JPH0521663Y2 (en) | 1993-06-03 |
Family
ID=31207920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1989004955U Expired - Lifetime JPH0521663Y2 (en) | 1989-01-19 | 1989-01-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0521663Y2 (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100774309B1 (en) * | 2006-11-28 | 2007-11-08 | 한국해양연구원 | Power genaration system using helical turbine |
| KR100774308B1 (en) * | 2006-11-28 | 2007-11-08 | 한국해양연구원 | Power generation system using helical turbine |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746068A (en) * | 1980-09-02 | 1982-03-16 | Atsushi Kadowaki | Generator and driving device for generator of fluid rotary disc type by use of either wind force or wave force |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5864867U (en) * | 1981-10-27 | 1983-05-02 | 日本電気精器株式会社 | Darius type wind turbine generator |
-
1989
- 1989-01-19 JP JP1989004955U patent/JPH0521663Y2/ja not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5746068A (en) * | 1980-09-02 | 1982-03-16 | Atsushi Kadowaki | Generator and driving device for generator of fluid rotary disc type by use of either wind force or wave force |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01118164U (en) | 1989-08-09 |
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