JP2013217333A - Ocean current power generating equipment - Google Patents

Ocean current power generating equipment Download PDF

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JP2013217333A
JP2013217333A JP2012090192A JP2012090192A JP2013217333A JP 2013217333 A JP2013217333 A JP 2013217333A JP 2012090192 A JP2012090192 A JP 2012090192A JP 2012090192 A JP2012090192 A JP 2012090192A JP 2013217333 A JP2013217333 A JP 2013217333A
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turbine
ocean current
current power
generator
power generation
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Shigeki Nagaya
茂樹 長屋
Yoshiki Minamiya
芳樹 南家
Yasuo Aizawa
保夫 相澤
Koichi Shiraishi
浩一 白石
Masaki Igeta
正樹 井桁
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IHI Corp
Niigata Power Systems Co Ltd
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IHI Corp
Niigata Power Systems Co Ltd
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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
    • Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient

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Abstract

PROBLEM TO BE SOLVED: To provide ocean current power generating equipment with high self-stability in the ocean that has improved power generation efficiency by disposing a power generator avoiding a position on an extension of a rotary shaft of a turbine.SOLUTION: Ocean current power generating equipment includes: a turbine part 1 in which a turbine 10 that rotates by ocean current energy is disposed at the end on the upstream side, and which incorporates a turbine rotary shaft 30 connected to the turbine 10; a central body 2a that incorporates a power generator 20 disposed avoiding a position on an extension of the turbine rotary shaft 30; and a gear mechanism 3 connected to the turbine 10 that transmits energy by the rotation of the turbine 10 to the power generator 20. The turbine part 1 is disposed in a pair, each of the pair being at the same distance from the central body 2a, and the respective turbines 10 rotate in the directions opposite to each other.

Description

本発明は、海流発電装置に関し、特に、タービン部を旋回可能な海流発電装置に関する。   The present invention relates to an ocean current power generation device, and more particularly to an ocean current power generation device capable of turning a turbine section.

近年、化石燃料や原子力による発電の代替として、海流、潮流等の海流エネルギーを利用した発電が注目されている。海流エネルギーを利用した発電は、二酸化酸素や汚染物の排出等がないので、公害や汚染等の問題の解決につながる手段の一つであるといえる。   In recent years, power generation using ocean current energy such as ocean currents and tidal currents has attracted attention as an alternative to power generation using fossil fuels and nuclear power. Power generation using ocean current energy is one of the means to solve problems such as pollution and pollution because it does not emit oxygen dioxide or pollutants.

海流エネルギーを利用した発電としては、海流発電装置を海中に浮遊させる海中浮遊式とし、タービンの回転モーメントを減殺するために、互いに逆方向に回転する２基のタービンを連結する構造が提案されている（例えば、特許文献１参照。）。海中浮遊式の海流発電装置は、海流エネルギーによってタービンが回転し、タービンの回転によって発生した電力を送電ケーブルにより地上に送電する。海中浮遊式の海流発電装置は、係留索によって海中に浮遊しているので風や波浪の影響を避けられる利点がある。   As power generation using ocean current energy, a structure in which two ocean turbines that rotate in opposite directions are connected to reduce the turbine rotating moment is proposed. (For example, refer to Patent Document 1). In a submerged floating ocean current power generation device, a turbine is rotated by ocean current energy, and electric power generated by the rotation of the turbine is transmitted to the ground using a transmission cable. The undersea floating current generator has the advantage of avoiding the influence of wind and waves because it is suspended in the sea by mooring lines.

特許文献１の海中浮遊式の海流発電装置は、タービン回転軸の延長上の上流側に発電機を配置している。この海流発電装置で発電量を多くするために大型の発電機を採用する場合、発電機を格納するナセルも大型化してしまうため海流の流れを遮ってしまう。海流の流れを遮ることになると、タービンに流入する海流の速度低下が著しくなり、発電性能が低下してしまう問題がある。   In the submerged floating ocean current power generation device of Patent Document 1, a generator is arranged on the upstream side of the extension of the turbine rotation shaft. When a large generator is employed to increase the amount of power generated by this ocean current power generation device, the nacelle for storing the generator is also increased in size, thereby blocking the flow of the ocean current. If the flow of the ocean current is interrupted, there is a problem that the speed of the ocean current flowing into the turbine is remarkably reduced and the power generation performance is degraded.

上記問題に鑑み、発電機の上流側にタービンを配置した場合、海流発電装置を係留する係留索と絡んでしまう危険性がある。また、タービンを海流発電装置の上流側に配置することによって、吹き流し効果がなくなり自己安定性がなくなってしまう。自己安定性がなくなった海流発電装置は、タービンを効率よく回転させることができなくなり、発電を効率よく行うことができなくなってしまう問題がある。   In view of the above problems, when a turbine is arranged on the upstream side of the generator, there is a risk of being entangled with a mooring line mooring the ocean current power generation device. Moreover, by arranging the turbine on the upstream side of the ocean current power generation device, the blowing effect is lost and the self-stability is lost. The ocean current power generation apparatus that has lost its self-stability has a problem in that the turbine cannot be efficiently rotated and power generation cannot be performed efficiently.

特開２００２−２６６７４３号公報JP 2002-266743 A

本発明は上記実情に鑑みてなされたものであって、タービンの回転軸の延長上を避けて発電機を配置することで発電効率を良くし、海中での自己安定性が高い海流発電装置を提供することを目的とする。   The present invention has been made in view of the above circumstances, and an ocean current power generation device that improves power generation efficiency by arranging a generator avoiding the extension of the rotating shaft of the turbine and has high self-stability in the sea. The purpose is to provide.

本願発明の一態様によれば、海流エネルギーにより回転するタービンが上流側端部に設けられ、タービンに接続されたタービン回転軸を内蔵するタービン部と、タービン回転軸の延長上を避けて配置された発電機を内蔵する中心胴体と、タービンと接続され、タービンの回転によるエネルギーを発電機に伝達するギア機構とを備え、タービン部は、中心胴体から等距離で対に配置され、それぞれのタービンが互いに逆方向に回転する海流発電装置であることを要旨とする。   According to one aspect of the present invention, a turbine that is rotated by ocean current energy is provided at an upstream end, and is disposed so as to avoid the extension of the turbine rotating shaft, which includes a turbine rotating shaft that is connected to the turbine. And a gear mechanism that is connected to the turbine and transmits energy generated by the rotation of the turbine to the generator. The turbine sections are arranged in pairs at equal distances from the center fuselage. Is a current generator that rotates in opposite directions.

本発明によれば、タービンの回転軸の延長上を避けて発電機を配置することで発電効率を良くし、海中での自己安定性が高い海流発電装置を提供することができる。   According to the present invention, it is possible to improve the power generation efficiency by disposing the generator while avoiding the extension of the rotating shaft of the turbine, and to provide an ocean current power generation device with high self-stability in the sea.

本発明の第１の実施の形態に係る海流発電装置の上面図である。1 is a top view of an ocean current power generation device according to a first embodiment of the present invention. 従来の海流発電装置のタービン部周辺の海流の流向を示す模式図である。It is a schematic diagram which shows the flow direction of the ocean current around the turbine part of the conventional ocean current power generation device. 本発明の第２の実施の形態に係る海流発電装置の上面である。It is an upper surface of the ocean current electric power generating apparatus which concerns on the 2nd Embodiment of this invention.

以下に図面を参照して、本発明の実施の形態を説明する。以下の図面の記載において、同一又は類似の部分には同一又は類似の符号で表している。但し、図面は模式的なものであり、厚みと平面寸法との関係、各層の厚みの比率等は現実のものとは異なる。したがって、具体的な厚みや寸法は以下の説明を照らし合わせて判断するべきものである。また、図面相互間においても互いの寸法の関係や比率が異なる部分が含まれていることは勿論である。   Embodiments of the present invention will be described below with reference to the drawings. In the following description of the drawings, the same or similar parts are denoted by the same or similar reference numerals. However, the drawings are schematic, and the relationship between the thickness and the planar dimensions, the ratio of the thickness of each layer, and the like are different from the actual ones. Therefore, specific thicknesses and dimensions should be determined in light of the following description. Moreover, it is a matter of course that portions having different dimensional relationships and ratios are included between the drawings.

（第１の実施の形態）
本発明の第１の実施の形態に係る海流発電装置は、図１に示すように、海流エネルギーにより回転するタービン１０が上流側端部に設けられ、タービン１０に接続されたタービン回転軸３０を内蔵するタービン部１と、タービン回転軸３０の延長上を避けて配置された発電機２０を内蔵する中心胴体２ａと、タービン１０と接続され、タービン１０の回転によるエネルギーを発電機２０に伝達するギア機構３とを備える。 (First embodiment)
As shown in FIG. 1, the ocean current power generation apparatus according to the first embodiment of the present invention includes a turbine rotating shaft 30 that is connected to the turbine 10 and is provided with a turbine 10 that is rotated by ocean current energy at an upstream end. The built-in turbine unit 1, the central body 2 a that houses the generator 20 arranged so as to avoid the extension of the turbine rotating shaft 30, and the turbine 10 are connected to transmit energy generated by the rotation of the turbine 10 to the generator 20. A gear mechanism 3.

タービン部１は、タービン１０と、タービン１０に接続されたタービン回転軸３０を内蔵するタービン筐体１１とを備える。タービン部１は、中心胴体２ａから等距離で対に配置され、それぞれのタービン１０が互いに逆方向に回転する。海流発電装置は、左右に配置されたタービン１０が互いに逆回転することで回転モーメントを打ち消すことができる双発タービン式である。   The turbine unit 1 includes a turbine 10 and a turbine casing 11 that houses a turbine rotating shaft 30 connected to the turbine 10. The turbine sections 1 are arranged in pairs at equal distances from the central body 2a, and the respective turbines 10 rotate in opposite directions. The ocean current power generation device is a twin-engine turbine type that can cancel the rotational moment by the turbines 10 arranged on the left and right rotating in reverse directions.

中心胴体２ａは、タービン１０の回転エネルギーにより発電する発電機２０を内蔵する。中心胴体２ａの上流側端部には、係留索５０が先端部に備えられており、係留索５０をアンカー等と繋ぐことで海流発電装置を海中に係留することができる。また、中心胴体２ａの下流側端部近傍には、安定装置２２ａが設けられている。   The central body 2 a contains a generator 20 that generates electric power using the rotational energy of the turbine 10. At the upstream end of the central body 2a, a mooring line 50 is provided at the tip, and the ocean current power generation device can be moored in the sea by connecting the mooring line 50 to an anchor or the like. A stabilizing device 22a is provided in the vicinity of the downstream end of the central body 2a.

安定装置２２ａは、海流発電装置の海中での自己安定性を高めるために使用される翼である。本実施の形態における安定装置２２ａは、海面に対して水平の水平翼、及び海面に対して垂直の垂直翼によりなる。安定装置２２ａは、面積が大きくなれば自己安定性が高まるので好ましい。しかし、安定装置２２ａは、面積が大きすぎてしまうと海流の抵抗が大きくなってしまい破損してしまう等の問題が発生してしまう。そこで、安定装置２２ａの各翼面積Ｓ（ｍ2）は、タービン１０の直径をＤ（ｍ）とし、安定装置２２ａの取り付け位置をタービン１０から距離Ｘ（ｍ）とすると、Ｓ＝０．１×（Ｄ2／４）×（１／Ｘ）を満たす面積であることが好ましい。 The stabilizer 22a is a wing that is used to increase the self-stability of the ocean current power generator in the sea. The stabilizer 22a in the present embodiment is composed of horizontal wings that are horizontal to the sea surface and vertical wings that are perpendicular to the sea surface. The stabilizing device 22a is preferable because the self-stability is increased if the area is increased. However, if the area of the stabilizing device 22a is too large, there will be a problem that the resistance of the ocean current will increase and it will break. Accordingly, each blade area S (m 2 ) of the stabilizer 22a is S = 0.1, where D (m) is the diameter of the turbine 10 and the distance X (m) from the turbine 10 is the mounting position of the stabilizer 22a. × (D 2/4) is preferably an area that satisfies × (1 / X).

ギア機構３は、タービン回転軸３０と、タービン回転軸３０から中心胴体２ａに向けて回転軸方向を９０度変える第１ギア３１と、第１ギア３１を経た回転を伝達する伝達回転軸３２と、伝達回転軸３２を経たそれぞれのタービン１０からの回転を一つに纏める第２ギア３３と、第２ギア３３を経た回転を発電機２０に伝達する発電機回転軸３４とを備える。ギア機構３は、タービン１０の回転エネルギーを、タービン部１と別途に設けられた中心胴体２ａ内の発電機２０に伝達させる。第１ギア３１は、直角に交わるタービン回転軸３０から伝達回転軸３２へと２軸間の動力を伝達するヘリカルギア等である。第２ギア３３は、２方向からの回転エネルギーを伝達してくる伝達回転軸３２の動力を纏めて発電機回転軸３４へ伝達するデファレンシャルギア等である。   The gear mechanism 3 includes a turbine rotation shaft 30, a first gear 31 that changes the rotation shaft direction from the turbine rotation shaft 30 toward the central body 2a by 90 degrees, and a transmission rotation shaft 32 that transmits rotation through the first gear 31. The second gear 33 that combines the rotations from the respective turbines 10 that have passed through the transmission rotation shaft 32 and the generator rotation shaft 34 that transmits the rotation through the second gear 33 to the generator 20 are provided. The gear mechanism 3 transmits the rotational energy of the turbine 10 to the generator 20 in the central body 2 a provided separately from the turbine unit 1. The first gear 31 is a helical gear or the like that transmits power between two axes from the turbine rotating shaft 30 that intersects at right angles to the transmitting rotating shaft 32. The second gear 33 is a differential gear or the like that collectively transmits the power of the transmission rotating shaft 32 that transmits rotational energy from two directions to the generator rotating shaft 34.

第１の実施の形態に係る海流発電装置の発電時は、海流エネルギーを安定して得られる黒潮等の海流が流れている箇所に浮遊させて係留されている。海流発電装置は、回転する２基のタービン１０から得られる回転エネルギーをギア機構３を用いて中心胴体２ａの発電機２０まで導いて発電する。   At the time of power generation by the ocean current power generation apparatus according to the first embodiment, the ocean current is suspended and moored at a location where ocean currents such as the Kuroshio current that can stably obtain ocean current energy are flowing. The ocean current power generation apparatus uses the gear mechanism 3 to guide the rotational energy obtained from the two rotating turbines 10 to the generator 20 of the central body 2a to generate electric power.

第１の実施の形態に係る海流発電装置によれば、発電機２０をタービン部１と別途に設けた中心胴体２ａに配置することで、タービン回転軸３０を格納するタービン筐体１１を小型化、スリム化することができる。タービン筐体１１を小型化、スリム化することで海流の流れの速度低下を抑えられるため、発電性能の低下を防ぐことができる。   According to the ocean current power generation device according to the first embodiment, the turbine casing 11 that houses the turbine rotating shaft 30 is downsized by disposing the generator 20 on the central body 2a provided separately from the turbine unit 1. Can be slimmed. By reducing the size and slimness of the turbine casing 11, it is possible to suppress a decrease in the flow velocity of the ocean current, and thus it is possible to prevent a decrease in power generation performance.

更に、第１の実施の形態に係る海流発電装置によれば、発電機２０をタービン部１と別途に設けた中心胴体２ａに配置することで、大型の発電機を用いてもタービン１０へ流入する海流の速度低下の影響が生じない。図２に示すように、タービン部１に発電機２０を内蔵させる従来の海流発電装置の場合であっては、大型の発電機２０を用いるとタービン筐体１１が大型化してしまい、タービン１０へ流入する海流の速度低下が生じるので発電性能が低下してしまう。第１の実施の形態に係る海流発電装置によれば、発電量を多くするために大型の発電機を採用する場合であっても、タービン１０に流入する海流の速度低下を抑えることができる。   Furthermore, according to the ocean current power generation device according to the first embodiment, the generator 20 is arranged in the central body 2a provided separately from the turbine unit 1, so that it flows into the turbine 10 even when a large generator is used. The effect of the reduced current speed is not generated. As shown in FIG. 2, in the case of the conventional ocean current power generation apparatus in which the generator 20 is built in the turbine unit 1, if the large generator 20 is used, the turbine casing 11 becomes large, and the turbine 10 Since the speed of the inflowing ocean current is reduced, the power generation performance is reduced. According to the ocean current power generation apparatus according to the first embodiment, it is possible to suppress a decrease in the speed of the ocean current flowing into the turbine 10 even when a large generator is employed to increase the amount of power generation.

更に、第１の実施の形態に係る海流発電装置によれば、大型の発電機２０を用いることが可能であるので、低回転のタービン出力から増速器を用いることなく発電することができる。このことにより、海流発電装置は、増速器等の機器を付加することが必要ないので構造を簡素にすることができる。   Furthermore, according to the ocean current power generation apparatus according to the first embodiment, it is possible to use the large generator 20, and therefore it is possible to generate power without using a speed increaser from a low-rotation turbine output. This makes it possible to simplify the structure of the ocean current power generation device because it is not necessary to add equipment such as a speed increaser.

更に、第１の実施の形態に係る海流発電装置によれば、２基のタービン回転軸３０を連結し、タービン１０の回転を同期させることで回転の変動を抑制することができる。   Furthermore, according to the ocean current power generation device according to the first embodiment, it is possible to suppress fluctuations in rotation by connecting two turbine rotation shafts 30 and synchronizing the rotation of the turbine 10.

更に、第１の実施の形態に係る海流発電装置によれば、タービン１０の上流側に流れを妨げる部材等が配置されていないので、タービン１０に流入する海流の流れが一様になり、タービン１０が発生するトルクの変動を軽減することができる。また、タービン１０が発生するトルクの変動を軽減することで、海流発電装置は、発電性能、耐久性、姿勢安定性を向上させることができる。   Furthermore, according to the ocean current power generation device according to the first embodiment, since no member or the like that impedes the flow is arranged on the upstream side of the turbine 10, the flow of the ocean current flowing into the turbine 10 becomes uniform, and the turbine 10 can reduce torque fluctuations. Moreover, the ocean current power generation device can improve power generation performance, durability, and posture stability by reducing fluctuations in torque generated by the turbine 10.

更に、第１の実施の形態に係る海流発電装置によれば、海流の向きが変化する等により海流発電装置の姿勢が変化し流れに対して角度がついた場合、下流端の安定装置２２ａは、海流発電装置の角度を流れと平行になるように流体力を発生するので、海流発電装置の姿勢を復原し、安定させることができる。   Furthermore, according to the ocean current power generation device according to the first embodiment, when the orientation of the ocean current power generation device changes due to the change in the direction of the ocean current and the angle is set with respect to the flow, the stabilizer 22a at the downstream end is Since hydrodynamic force is generated so that the angle of the ocean current power generator is parallel to the flow, the attitude of the ocean current power generator can be restored and stabilized.

（第２の実施の形態）
本発明の第２の実施の形態に係る海流発電装置は、図３に示すように、図１に示した海流発電装置と比して、中心胴体２ｂ及び安定装置２２ｂ，２２ｃ，２２ｄの形状が異なる。その他に関しては、実質的に同様であるので、重複する記載を省略する。 (Second Embodiment)
As shown in FIG. 3, the ocean current power generator according to the second embodiment of the present invention has a shape of the central body 2b and stabilizers 22b, 22c, and 22d as compared to the ocean current power generator shown in FIG. Different. Others are substantially the same, and thus redundant description is omitted.

中心胴体２ｂは、両端にタービン部１が設けられている形状である。係留索５０がタービン１０より下流側で中心胴体２ｂに接続するようにすると、タービン１０と接触してしまうので、中心胴体２ｂの上流側の一部を係留索接続部としてタービン１０より上流側まで引き延ばしてある。係留索接続部は、１箇所である必要はなく、２箇所以上の複数であっても構わない。   The central body 2b has a shape in which the turbine part 1 is provided at both ends. If the mooring line 50 is connected to the central body 2b on the downstream side of the turbine 10, the mooring line 50 comes into contact with the turbine 10. Therefore, a part of the upstream side of the central body 2b is used as a mooring line connection part to the upstream side of the turbine 10. It has been extended. The mooring cable connection portion does not have to be one place, and may be a plurality of two or more places.

本実施の形態における支持装置２２ｂは、安定装置２２ｃおよび２２ｄをタービン部１と固定するための支持構造である。安定装置２２ｃは、２つの安定装置２２ｂに渡って設けられ、海面に対して水平の水平翼である。安定装置２２ｄは、安定装置２２ｂに設けられた海面に対して垂直の垂直翼である。   The support device 22b in the present embodiment is a support structure for fixing the stabilizers 22c and 22d to the turbine unit 1. The stabilizer 22c is a horizontal wing that is provided across the two stabilizers 22b and is horizontal to the sea surface. The stabilizer 22d is a vertical wing perpendicular to the sea surface provided in the stabilizer 22b.

第２の実施の形態に係る海流発電装置でも、第１の実施の形態に係る海流発電装置と同様の効果を得ることができる。   Even in the ocean current power generation device according to the second embodiment, the same effect as that of the ocean current power generation device according to the first embodiment can be obtained.

また、第２の実施の形態に係る海流発電装置は、安定装置２２ｂ，２２ｃ，２２ｄの面積を大きくすることが可能であるので、海流発電装置の自己安定性を更に高めることができる。   Moreover, since the ocean current power generation apparatus according to the second embodiment can increase the areas of the stabilization devices 22b, 22c, and 22d, the self-stability of the ocean current power generation apparatus can be further improved.

（その他の実施の形態）
上記のように、本発明は実施の形態によって記載したが、この開示の一部をなす記述及び図面はこの発明を限定するものであると理解するべきではない。この開示から当業者には様々な代替実施の形態、実施例及び運用技術が明らかになるはずである。 (Other embodiments)
As described above, the present invention has been described according to the embodiment. However, it should not be understood that the description and drawings constituting a part of this disclosure limit the present invention. From this disclosure, various alternative embodiments, examples and operational techniques should be apparent to those skilled in the art.

例えば、安定装置は、航空機のエルロンのような可動翼とすることができる。安定装置が可動翼である場合、海流発電装置を能動的に姿勢制御を行うことができる。尚、安定装置は、連結部２１に設けても構わない。   For example, the stabilizer may be a movable wing such as an aircraft aileron. When the stabilizer is a movable wing, the ocean current power generator can be actively controlled. The stabilizing device may be provided in the connecting portion 21.

このように、本発明はここでは記載していない様々な実施の形態等を包含するということを理解すべきである。したがって、本発明はこの開示から妥当な特許請求の範囲の発明特定事項によってのみ限定されるものである。   Thus, it should be understood that the present invention includes various embodiments and the like not described herein. Therefore, the present invention is limited only by the invention specifying matters in the scope of claims reasonable from this disclosure.

１…タービン部
２ａ，２ｂ…中心胴体
３…ギア機構
１０…タービン
１１…タービン筐体
２０…発電機
２１…連結部
２２ａ，２２ｂ，２２ｃ，２２ｄ…安定装置
３０…タービン回転軸
３１…第１ギア
３２…伝達回転軸
３３…第２ギア
３４…発電機回転軸
５０…係留索 DESCRIPTION OF SYMBOLS 1 ... Turbine part 2a, 2b ... Center fuselage 3 ... Gear mechanism 10 ... Turbine 11 ... Turbine housing 20 ... Generator 21 ... Connection part 22a, 22b, 22c, 22d ... Stabilizer 30 ... Turbine rotating shaft 31 ... 1st gear 32 ... Transmission rotary shaft 33 ... Second gear 34 ... Generator rotary shaft 50 ... Mooring cable

Claims (5)

海流エネルギーにより回転するタービンが上流側端部に設けられ、前記タービンに接続されたタービン回転軸を内蔵するタービン部と、
前記タービン回転軸の延長上を避けて配置された発電機を内蔵する中心胴体と、
前記タービンと接続され、前記タービンの回転によるエネルギーを前記発電機に伝達するギア機構
とを備え、前記タービン部は、前記中心胴体から等距離で対に配置され、それぞれの前記タービンが互いに逆方向に回転することを特徴とする海流発電装置。 A turbine rotating by ocean current energy is provided at an upstream end, and a turbine part including a turbine rotating shaft connected to the turbine;
A central fuselage with a built-in generator arranged avoiding the extension of the turbine rotating shaft;
A gear mechanism that is connected to the turbine and transmits energy generated by rotation of the turbine to the generator, and the turbine portions are arranged in pairs at equal distances from the central body, and the turbines are in opposite directions. An ocean current power generator characterized by rotating in the direction. 前記ギア機構は、
前記タービン回転軸と、
前記タービン回転軸から前記中心胴体に向けて回転軸方向を変える第１ギアと、
前記第１ギアを経た回転を伝達する伝達回転軸と、
前記伝達回転軸を経たそれぞれの前記タービンからの回転を一つに纏める第２ギアと、
前記第２ギアを経た回転を前記発電機に伝達する発電機回転軸
とを備えることを特徴とする請求項１に記載の海流発電装置。 The gear mechanism is
The turbine rotating shaft;
A first gear that changes the direction of the rotation axis from the turbine rotation axis toward the central body;
A transmission rotating shaft for transmitting rotation via the first gear;
A second gear that combines the rotations from the turbines through the transmission rotation shaft into one;
The ocean current power generation device according to claim 1, further comprising: a generator rotating shaft that transmits the rotation through the second gear to the generator. 前記タービン部の下流側に、海中での自己安定性を高める安定装置を設けることを特徴とする請求項１又は２に記載の海流発電装置。   The ocean current power generation device according to claim 1, wherein a stabilization device that increases self-stability in the sea is provided downstream of the turbine section. 前記安定装置の各翼面積Ｓ（ｍ2）は、前記タービンの直径をＤ（ｍ）とし、前記安定装置の取り付け位置を前記タービンから距離Ｘ（ｍ）とすると、Ｓ＝０．１×（Ｄ2／４）×（１／Ｘ）を満たすことを特徴とする請求項３に記載の海流発電装置。 Each blade area S (m 2 ) of the stabilizer is S = 0.1 × (D = m) where the diameter of the turbine is D (m) and the mounting position of the stabilizer is a distance X (m) from the turbine. D 2/4) × (1 / X) ocean current power generator according to claim 3, characterized in that meet. 前記安定装置は、可動翼であることを特徴とする請求項３又は４に記載の海流発電装置。   The ocean current power generation device according to claim 3 or 4, wherein the stabilizer is a movable wing.
JP2012090192A 2012-04-11 2012-04-11 Ocean current power generating equipment Pending JP2013217333A (en)

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