JP2012241707A - Tidal current generator - Google Patents

Tidal current generator Download PDF

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JP2012241707A
JP2012241707A JP2011129599A JP2011129599A JP2012241707A JP 2012241707 A JP2012241707 A JP 2012241707A JP 2011129599 A JP2011129599 A JP 2011129599A JP 2011129599 A JP2011129599 A JP 2011129599A JP 2012241707 A JP2012241707 A JP 2012241707A
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cylindrical body
tidal current
fan
rotating shaft
current generator
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Akinori Tanabe
彰憲 田邊
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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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

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Abstract

PROBLEM TO BE SOLVED: To enhance efficiency of a tidal current generator, and reduce production costs and maintenance costs of the same.SOLUTION: An axial-flow water turbine of a cylindrical body is adopted which is sealed and independently floats on water; and a plurality of lined blades are disposed which have screws in the same direction from the front to the rear of a periphery of the cylindrical body. An electricity generating non-rotation shaft 3 is disposed at an axis of the rear inside the cylindrical body. A fan-shaped weight 4 of a large capacity is attached to the shaft, so that the rear of the cylindrical body can be sunk, and an initial tidal current pressure can be received by up to the rear of the blades. Gears 6 are disposed at an end of the cylindrical body so as to transfer turning force of the cylindrical body turning by tidal current force to a generator 5. Further, the electricity generating non-rotation shaft 3 is disposed at the shaft of the rear of the cylindrical body. The fan-shaped weight 4 is fixed to this electricity generating non-rotation shaft 3. Even if a cylindrical body 1 rotates, the electricity generating non-rotation shaft 3 does not rotate by gravity action of the fan-shaped weight 4 of a large capacity, and a reduction gear 7 and the generator 5 are disposed to be connected to the fan-shaped weight 4, so that the turning force of the cylindrical body is transferred sequentially through the gears 6 and the reduction gear 7, to the generator 5.

Description

本発明は、円筒体内部に発電機・軸・錘・歯車・減速機を配置、又円筒体外周にネジレを有して連なったブレードを備え、後部を沈めた状態で独立して浮く軸流水車型の潮流発電機に関する。  The present invention provides an axial flow water in which a generator, a shaft, a weight, a gear, and a speed reducer are arranged inside a cylindrical body, and a blade is connected to the outer periphery of the cylindrical body with a twist, and floats independently in a state where the rear part is submerged. It relates to a car-type tidal current generator.

技術背景Technical background

潮流発電機には水中に完全に沈めたプロペラ翼のタイプや、船体やフロートにプロペラ翼付き発電機を配置したタイプがあるが、実用化にはまだ問題が残っている。
特開２００５−５０２８２１ 特開２００４−２９３３５２ There are tidal current generators that have propeller wings that are completely submerged in water and those that have propeller wing generators installed in the hull and float, but problems still remain in practical use.
JP2005-502821 JP 2004-293352 A

発明が解決しようとする課題Problems to be solved by the invention

（イ）従来の文献１の水中に完全に沈めたタイプだと防水面での課題
・比較的流速の速い水面域の利用ができないという課題
・メンテナンス時は運転を止め水中から出す必要があるという課題
（ロ）従来の文献２の船体もしくは、フロートにブレード付き発電機を配置するタイプだと、船体やフロートの製作コストがかかるという課題
・水面を浮いて流れるゴミが、船体とブレード付き発電機の取り付け部や発電機軸にからみ付くという課題
本発明はこれらの問題点を解決するためになされたものである。(B) The conventional submerged type in Document 1 is a problem with waterproofing, a problem that the surface area with a relatively high flow rate cannot be used, and that maintenance needs to be stopped and taken out of the water. Problem (b) The conventional hull in Document 2 or the type in which a generator with a blade is placed on a float is a problem that the manufacturing cost of the hull or float is high. The present invention has been made in order to solve these problems.

課題を解決するための手段Means for solving the problem

（イ）上記課題を解決するために、本発明の潮流発電機では、水上に独立して浮く密封された円筒体の軸流水車を採用し、ゴミの付きにくいよう、円筒体外周前部から後部まで同方向のネジを有して連なったブレートを複数枚配置した。
（ロ）円筒体内部の後部の軸芯に発電用無回転軸３を配置。その軸に大容量の扇形錘Ａ４を取り付けることで円筒体後部を沈めることができるようになり、このことにより、ブレードの後部まで初潮流圧を受けられるようになる。又受圧面積も広く取れるようになる。
（ハ）潮流力により回転した円筒体の回転力を発電機５に伝えるのに、円筒体端部に歯車６を配置した。又、円筒体後部の軸芯に発電用無回転軸３を配置。この発電用無回転軸３に扇形鍾Ａ４を固定した。円筒体１が回転しても大容量の扇形鐘Ａ４の重力作用により発電用無回転軸３が回転しないようにして、扇形鐘Ａ４に減速機７、発電機５を配置連結することで、円筒体の回転力を→歯車６→減速機７→発電機５と動力が伝わるようにした。
（ニ）円筒体軸芯前端部にもその、係留用無回転軸８に扇形錘Ｂ１０を固定して、係留用ロープ１３で係留して円筒体が回転しても、扇形錘Ｂ１０の重力作用により、係留用無回転軸８が回転しないようにした。
又、後端部には係留用回転軸９を配置して係留用ロープ１４で係留したことで常に同じ位置で係留できるようにした。
（ホ）運転中人が円筒体内部に出入りしてメンテナンス作業と送電線１５の配線ができるように、発電用無回転軸３と係留用無回転軸８に人が通れて、送電線１５が通せるくらいの出入り送電用穴１２と出入り送電用穴１１を設けた。(A) In order to solve the above-mentioned problems, the tidal current generator of the present invention employs a sealed cylindrical axial water turbine that floats independently on the water, so that it is difficult to get dust from the front of the outer periphery of the cylindrical body. A plurality of blades connected with screws in the same direction up to the rear were arranged.
(B) The non-rotating shaft 3 for power generation is arranged on the axial center of the rear part inside the cylindrical body. By attaching a large-capacity fan-shaped weight A4 to the shaft, it becomes possible to sink the rear part of the cylindrical body, so that the initial tidal pressure can be received up to the rear part of the blade. In addition, the pressure receiving area can be widened.
(C) A gear 6 is arranged at the end of the cylinder to transmit the rotational force of the cylinder rotated by the tidal force to the generator 5. In addition, the non-rotating shaft 3 for power generation is arranged on the shaft core at the rear of the cylindrical body. A fan-shaped cage A4 was fixed to the non-rotating shaft 3 for power generation. Even if the cylindrical body 1 rotates, the non-rotating shaft 3 for power generation does not rotate due to the gravitational action of the large-capacity fan-shaped bell A4, and the reduction gear 7 and the generator 5 are arranged and connected to the fan-shaped bell A4. The rotational force of the body is transmitted to the gear 6 → gear 6 → speed reducer 7 → generator 5.
(D) Even if the fan-shaped weight B10 is fixed to the non-rotating shaft 8 for anchoring at the front end of the cylindrical body axis, and the cylindrical body rotates with the mooring rope 13, the gravity action of the fan-shaped weight B10 Thus, the non-rotating shaft 8 for mooring is prevented from rotating.
In addition, the mooring rotary shaft 9 is arranged at the rear end and moored by the mooring rope 14 so that it can always be moored at the same position.
(E) A person can pass through the non-rotating shaft 3 for power generation and the non-rotating shaft 8 for mooring so that a person in operation can enter and leave the cylindrical body and perform maintenance work and wiring of the power transmission line 15. The entrance / exit power transmission hole 12 and the entrance / exit power transmission hole 11 are provided to allow the passage.

発明の効果Effect of the invention

以上のように本発明にかける潮流発電機は、独立して浮く円筒体なので比較的流速の速い水面域の利用ができ、効率向上が図れる。又防水面の課題もなく、船体やフロートを必要とせずコスト減少が図れる。
円筒体後部を沈める構造なので、ブレードの後部まで初潮流圧を受けられるようになり、又受圧面積も広く取れるようになる。その結果大型大容量の潮流発電機を作ることも可能となる。
円筒体前部から後部まで同方向のネジを有して連なったブレードを配置したので水面を流れるゴミが巻きつく所がなく、ゴミがそのまま後方へ流れていくことが可能となる。
メンテナンス面でも、運転中に人が円筒体内部まで入れる回転部のない構造なのでメンテナンス作業のコスト低減が図れる。
送電線をこの回転しない出入り送電用穴１２・出入り送電用穴１１を通せば外部までの配線が可能となる。As described above, since the tidal current generator according to the present invention is a cylindrical body that floats independently, it is possible to use a water surface area having a relatively high flow velocity, and to improve efficiency. In addition, there is no problem of waterproofing, and the cost can be reduced without requiring a hull or a float.
Since the rear part of the cylindrical body is sunk, the initial tidal pressure can be received up to the rear part of the blade, and the pressure receiving area can be increased. As a result, it is also possible to make a large-capacity tidal current generator.
Since the blades connected with the screws in the same direction from the front to the rear of the cylindrical body are arranged, there is no place where the dust flowing on the water surface is wound, and the dust can flow rearward as it is.
In terms of maintenance, the cost of maintenance work can be reduced because there is no rotating part that allows a person to enter the cylinder during operation.
If the power transmission line passes through the non-rotating entrance / exit power transmission hole 12 and the entrance / exit power transmission hole 11, wiring to the outside becomes possible.

以下、本発明の実施の形態を図面に沿って説明する。
（イ）図１〜３に示すように、潮流発電機は海上の潮流の上流側に扇形錘Ｂ１０の重力作用の働いた係留用無回転軸８を配置し、その８に係留用ロープ１３で係留する。
又、潮流の下流側に係留用回転軸９に係留用ロープ１４で係留することで、円筒体が回転しても、係留ロープは回転しない構造となっている。
円筒体外周の前部から後部まで同方向のネジを有して連なったこのブレード２を複数配置したことで、（水面を流れるゴミがからみ付きやすい、小径部やとがった部分がない為）、そのまま後方へ流れていく構造となっている。
（ロ）円筒体内部には円筒体後部軸芯に発電用無回転軸３に扇形錘Ａ４を固定して取り付けたことで扇形錘Ａ４は重力作用により常に下位置にあり回転しないので円筒体の回転エネルギー損失も少なく済み、図１で示す位、円筒体後部を沈めるためブレード２の後部まで初潮流圧を受けて作用する、又受圧面積も広く取れるようになる。
（ハ）ブレード２にあたる潮流力により回転した、円筒体１の回転力を発電機５に伝えるため、円筒体端部に、歯車６を配置した。自ら回転しない扇形錘Ａ４に発電機５と減速機７を設置する。円筒体１が回転してその回転力を歯車６→減速機７→発電機５と伝えられ発電が可能となる。
（ニ）この扇形錘Ａ４の重量を最大限に設計することで、発電機の容量も大型化させることが可能になる。
（ホ）運転中（円筒体の回転中）にメンテナンスの為、人が内部に出入りできるようにと、発電用無回転軸３と係留用無回転軸８に人が通れて、送電線１５が通せるぐらいの穴を設けた。又、発電した電気を送る送電線もこの穴の中を通すことで、送電を可能にした。Hereinafter, embodiments of the present invention will be described with reference to the drawings.
(B) As shown in FIGS. 1 to 3, the tidal power generator has a mooring non-rotating shaft 8 on which the gravity action of the fan-shaped weight B <b> 10 acts on the upstream side of the tidal current on the sea. Moored.
In addition, the mooring rope is not rotated even when the cylindrical body rotates by mooring the mooring rotary shaft 9 with the mooring rope 14 on the downstream side of the tidal current.
By arranging a plurality of blades 2 connected with screws in the same direction from the front part to the rear part of the outer periphery of the cylindrical body (because there is no small-diameter part or pointed part where dust flowing on the water surface is easily entangled), It has a structure that flows backward.
(B) The fan-shaped weight A4 is always in the lower position due to the gravitational action and does not rotate because the fan-shaped weight A4 is fixedly attached to the non-rotating shaft 3 for power generation at the rear axis of the cylindrical body. Loss of rotational energy is small, and as shown in FIG. 1, since the rear part of the cylindrical body is submerged, the rear part of the blade 2 acts by receiving the initial tidal current pressure, and the pressure receiving area can be widened.
(C) In order to transmit the rotational force of the cylindrical body 1 rotated by the tidal force hitting the blade 2 to the generator 5, a gear 6 is arranged at the end of the cylindrical body. The generator 5 and the speed reducer 7 are installed on the sector weight A4 that does not rotate by itself. The cylindrical body 1 rotates, and the rotational force is transmitted from the gear 6 to the speed reducer 7 → the generator 5 to enable power generation.
(D) By designing the weight of the sector weight A4 to the maximum, the capacity of the generator can be increased.
(E) For maintenance during operation (during the rotation of the cylinder), a person can pass through the non-rotating shaft 3 for power generation and the non-rotating shaft 8 for mooring, and the transmission line 15 There was a hole that could pass through. In addition, the power transmission line that sends the generated electricity also passes through this hole, enabling power transmission.

１、 円筒体
２、 ブレード
３、 発電用無回転軸
４、 扇形錘Ａ
５、 発電機
６、 歯車
７、 減速機
８、 係留用無回転軸
９、 係留用回転軸
１０、 扇形錘Ｂ
１１、 出入り送電用穴
１２、 出入り送電用穴
１３、 係留用ロープ
１４、 係留用ロープ
１５、 送電線1, cylindrical body 2, blade 3, non-rotating shaft 4 for power generation, sector weight A
5, generator 6, gear 7, speed reducer 8, non-rotating shaft 9 for mooring, rotating shaft 10 for mooring, sector weight B
11, In / out power transmission hole 12, Out / in power transmission hole 13, Mooring rope 14, Mooring rope 15, Transmission line

本発明の断面図Cross section of the present invention 本発明の部分断面図Partial sectional view of the present invention 本発明の部分断面図Partial sectional view of the present invention

Claims (5)

単体で浮く円筒体もしくはテーパー管の外周の前部から後部まで、同方向にネジレを有して連なったブレードを複数枚配置した軸流水車を採用したことを特徴とする潮流発電機。  A tidal current generator characterized by adopting an axial-flow turbine in which a plurality of blades connected in a twisted manner are arranged in the same direction from the front part to the rear part of the outer periphery of a cylindrical body or a tapered tube that floats as a single unit. 円筒体内部軸芯の後部に発電用無回転軸と扇形錘を配置して円筒体の後部を沈めることで、ブレードの後部まで初潮流圧を受けて作用すると共に受圧面積も広く取れることを特徴とする請求項１に記載の潮流発電機。  The non-rotating shaft for power generation and the fan-shaped weight are placed at the rear of the cylindrical core, and the rear of the cylindrical body is sunk, so that the rear of the blade receives the initial tidal current pressure and has a large pressure receiving area. The tidal current generator according to claim 1. 円筒体内部に発電機、発電用無回転軸、歯車、減速機、扇形錘Ａを配置して、この扇形錘Ａの重力作用を利用した動力伝達装置を配置したことを特徴とする請求項１または２に記載の潮流発電機。  2. A generator, a non-rotating shaft for power generation, a gear, a speed reducer, and a sector weight A are arranged inside the cylindrical body, and a power transmission device using the gravity action of the sector weight A is arranged. Or the tidal current generator of 2. 円筒体軸芯前端部に扇形錘Ｂの重力作用の働いた回転しない係留用無回転軸と扇形錘Ｂを、後端部に係留用回転軸を配置したことで運転中円筒体が回転してもロープにネジレを生じず、常に同じ位置に係留できるようにしたことを特徴とする請求項１〜３に記載の潮流発電機。  The non-rotating anchoring non-rotating shaft and fan-shaped weight B with the gravity action of the fan-shaped weight B acted on the front end of the cylindrical body axis, and the rotating shaft for mooring arranged on the rear end of the cylindrical body rotated during operation. The tidal current generator according to any one of claims 1 to 3, wherein the rope is not twisted and can always be moored at the same position. 扇形錘Ａ・Ｂの重力作用が働いた回転しない発電用無回転軸と係留用無回転軸に人が通れ、かつ送電線を通せる穴を設けたことで運転中にメンテナンス作業ができ、又送電ができるようにしたことを特徴とする請求項１〜４に記載の潮流発電機。  Maintenance work can be performed during operation by providing a hole that allows people to pass through the non-rotating power generation non-rotating shaft and the non-rotating shaft for mooring that the gravity action of the fan-shaped weights A and B works, The tidal current generator according to claim 1, wherein power transmission is possible.
JP2011129599A 2011-05-23 2011-05-23 Tidal current generator Withdrawn JP2012241707A (en)

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