CN111255625A

CN111255625A - Sichuan-flow type power generation device

Info

Publication number: CN111255625A
Application number: CN201811454712.5A
Authority: CN
Inventors: 谢志男; 许恭铭; 杨景富; 邱松茂; 何玫蓉
Original assignee: Metal Industries Research and Development Centre
Current assignee: Metal Industries Research and Development Centre
Priority date: 2018-11-30
Filing date: 2018-11-30
Publication date: 2020-06-09

Abstract

The invention provides a river type power generation device. The river type power generation device comprises a power generation module and two movable mechanisms. The two movable mechanisms are arranged in the flowing water area. The two movable mechanisms are connected to the power generation module via cables. One of the two movable mechanisms is connected with one end of the cable. The other of the two movable mechanisms is connected with the other end of the cable. When one of the two movable mechanisms is in an unfolding mode and the other of the two movable mechanisms is in a folding mode, one of the two movable mechanisms moves along the water flow direction and the other of the two movable mechanisms moves against the water flow direction, so that the power generation module obtains driving force through the cable to generate power. Therefore, the river-type power generation device can effectively utilize the single water flow direction characteristic of the river to generate electric power.

Description

Sichuan-flow type power generation device

Technical Field

The invention relates to a hydroelectric power generation technology, in particular to a river type power generation device.

Background

With the increasing demand of green energy, more and more green energy power generation devices are developed. In particular, various power generation apparatuses for hydroelectric power are currently widely discussed. However, conventional hydroelectric power generation is not limited to tidal power generation, ocean current power generation, or river power generation. In contrast, the tidal power generation and ocean current power generation systems are not practical and are not easily popularized because of the high construction cost of the tidal power generation and ocean current power generation equipment and the large construction range of the tidal power generation and ocean current power generation equipment, which easily causes ecological pollution. In addition, conventional river power generation is to collect water flow force by means of horizontal or vertical blades to generate power. However, the traditional river power generation needs to be further provided with a drainage plate and a guide plate, so that the discharged water quantity is seriously influenced, and the ecology of the underwater biosphere is easily damaged. In view of the above, how to provide a hydraulic power generating device with good power generating efficiency and reduce the ecological damage to the aquatic biosphere and the image of the discharged water amount will be provided below.

Disclosure of Invention

The invention provides a river type power generation device which can effectively utilize the single water flow direction characteristic of a river to generate power.

The invention relates to a river type power generation device which comprises a power generation module and two movable mechanisms. The two movable mechanisms are arranged in the flowing water area. The two movable mechanisms are connected to the power generation module via cables. One of the two movable mechanisms is connected to one end of a cable, and the other of the two movable mechanisms is connected to the other end of the cable. When one of the two movable mechanisms is in an expansion mode and the other of the two movable mechanisms is in a contraction mode, one of the two movable mechanisms moves along the water flow direction and the other of the two movable mechanisms moves against the water flow direction, so that the power generation module obtains driving force through the cable to generate power.

In an embodiment of the invention, the two movable mechanisms are disposed in parallel in the flowing water and move linearly in opposite directions respectively.

In an embodiment of the invention, the two movable mechanisms are alternately switched between an unfolding mode and a folding mode.

In an embodiment of the invention, the power generation module includes a generator, a rotatable mechanism, and a speed increaser. The cable is sleeved on the rotatable mechanism. The speed increaser is coupled with the generator and is arranged on the rotatable mechanism. When the two movable mechanisms are interlocked, the speed increaser provides the rotating power obtained by the rotatable mechanism through the cable to the generator to generate electricity.

In an embodiment of the present invention, the two movable mechanisms respectively include a main plate, two wing plates, two guide rails, and an unfolding mechanism. The main board is provided with a main board surface which is perpendicular to the water flow direction. The two guide rails are arranged on the upper side and the lower side of the main board, so that the main board moves along the two guide rails. The two wing plates are respectively arranged on two sides of the main plate in a swinging way. The unfolding mechanism is arranged on the main board and is connected with the cable. The unfolding mechanism determines whether to fold or unfold the two wing plates according to the pulling force provided by the cable.

In an embodiment of the present invention, each of the two movable mechanisms further includes a main spring. The main spring is sleeved on the cable. One end of the main spring is arranged on the main board, and the other end of the main spring is fixedly connected with the cable. When the cable provides a pulling force greater than the spring force of the main spring, the main spring stretches and provides a cushioning distance.

In an embodiment of the present invention, each of the two movable mechanisms further includes a top support and a secondary spring. The top support piece penetrates through a gap between the main board and the unfolding mechanism and is connected with a cable. The secondary spring is sleeved on the top support piece. One end of the secondary spring is propped against the top support piece, and the other end of the secondary spring is propped against the main board. When the pulling force provided by the cable is larger than the elastic force of the main spring and the secondary spring is compressed to enable the supporting piece to move, the unfolding mechanism is loosened to enable the two wing plates to swing and fold.

In an embodiment of the present invention, when the pulling force provided by the cable is smaller than the elastic force of the main spring, the secondary spring resets the top support member to clamp the unfolding mechanism, so that the two wing plates swing and unfold.

In an embodiment of the present invention, each of the two movable mechanisms further includes two sliding blocks capable of reciprocating relative movement. The top support part penetrates into or is drawn out of a gap between the two sliding blocks so as to enable the two sliding blocks to be far away or close to each other.

In an embodiment of the invention, when the two wings of one of the two movable mechanisms are swung to be unfolded, one of the two movable mechanisms receives the water flow thrust of the flowing water through the two wings to move along the water flow direction, and the two wings of the other of the two movable mechanisms are swung to be folded at the same time. The other of the two movable mechanisms is moved against the direction of water flow in accordance with the pulling force of the cable.

Based on the above, the current type power generation device of the invention can be alternately switched between the unfolding mode and the folding mode through the two movable mechanisms, so that the two movable mechanisms are pulled and displaced in the flowing water area to generate the driving force to the power generation module to generate power. Therefore, the current power generation device of the present invention can provide good and stable power generation efficiency.

In order to make the aforementioned and other features and advantages of the invention more comprehensible, embodiments accompanied with figures are described in detail below.

Drawings

FIG. 1 is a schematic top view of a current-type power plant according to an embodiment of the present invention;

FIG. 2 is a top view of a current generator according to an embodiment of the present invention;

FIG. 3 is a side view of the embodiment of FIG. 2 according to the present invention;

FIG. 4 is a block diagram of a movable mechanism in accordance with an embodiment of the present invention.

Description of the reference numerals

100. 300, and (2) 300: a Sichuan-flow power generation device;

110. 310: a power generation module;

120. 130, 320, 330, 420: a movable mechanism;

140. 340, 340', 440: a cable;

200: a flowing water area;

311: a rotatable mechanism;

312: a speed increaser;

313: a generator;

321. 331, 421: a main board;

322. 332, 323, 333, 422, 423: a wing plate;

324. 334, 424: a deployment mechanism;

325. 325 ', 335', 425: a main spring;

350. 350 ', 360': a guide rail;

426. 426': a slider;

427: a top support;

428: a secondary spring;

441: a buffer section of cable;

p1, P2, P3: direction;

WD: and (4) water flow.

Detailed Description

In order that the present disclosure may be more readily understood, the following specific examples are given as illustrative of the invention which may be practiced in various ways. Further, wherever possible, the same reference numbers will be used throughout the drawings and the description to refer to the same or like parts.

Fig. 1 is a schematic top view of a current power generation device according to an embodiment of the present invention. Referring to fig. 1, a current generator 100 includes a power generation module 110 and two

movable mechanisms

120 and 130. The

movable mechanisms

120, 130 are disposed in the flowing water body 200. In the present embodiment, the

movable mechanisms

120 and 130 are connected to the power generation module 110 via the cable 140, and are pulled by the cable 140 to be linked. The movable mechanism 120 is connected to one end of the cable 140, and the movable mechanism 130 is connected to the other end of the cable 140. In the present embodiment, the water flow WD of the flowing water area 200 is fixedly flowing in a single water flow direction, wherein the water flow WD of the flowing water area 200 may flow in the second direction P2, for example. The first direction P1, the second direction P2, and the third direction P3 are perpendicular to each other. In the present embodiment, the

movable mechanisms

120, 130 are disposed in parallel in the flowing water area 200, and linearly move in opposite directions, respectively. The path of movement of the

moveable mechanisms

120, 130 may be parallel to the flowing water body 200 or the flow WD of the flowing water body 200.

For example, first, when the movable mechanism 120 is in the expansion mode and the movable mechanism 130 is in the retraction mode, the movable mechanism 120 moves along the water flow direction of the water flow WD, and the movable mechanism 130 moves against the water flow direction of the water flow WD, so that the power generation module 110 obtains driving force via the cable 140 to generate power. In other words, the movable mechanism 120 moves in a direction away from the power generation module 110 (moves in the second direction P2), and the movable mechanism 130 moves in a direction toward the power generation module 110 (moves against the second direction P2). Next, when the movable mechanism 120 is moved to the farthest movable distance, the movable mechanism 120 is switched to the contracting mode, and the movable mechanism 130 is switched to the expanding mode, so that the movable mechanism 130 moves in the water flow direction of the water flow WD, and the movable mechanism 120 moves against the water flow direction of the water flow WD. By analogy, the

movable mechanisms

120 and 130 of the present embodiment can utilize the characteristic that the water flow WD of the flowing water area 200 continuously flows in a single direction to repeatedly and alternately move back and forth. Therefore, the power generation module 110 of the present embodiment can further utilize the repeated reciprocating movement of the

movable mechanisms

120, 130 to obtain the rotational power via the cable 140 to efficiently generate power.

Fig. 2 is a top view structural diagram of a current power generation device according to an embodiment of the present invention. Referring to fig. 2, the current generator 300 includes a power generation module 310, two

movable mechanisms

320 and 330, and a cable 340. In the present embodiment, the

movable mechanisms

320 and 330 are connected to the power generation module 310 via the cable 340, and are pulled by the cable 340 to be linked. The movable mechanism 320 is connected to one end of a cable 340, and the movable mechanism 330 is connected to the other end of the cable 340. In this embodiment, the water flow WD may, for example, flow fixedly in the second direction P2 to push the movable mechanism 320 assuming the deployed mode away from the power generation module 310, and the movable mechanism 330 is moved toward the power generation module 310 by the pulling force of the cable 340.

Specifically, the movable mechanism 320 includes a main plate 321, two

wings

322, 323, a deployment mechanism 324, and a main spring 325. The main spring 325 is disposed on the cable 340, and has one end disposed on the main board 321 and the other end away from the main board 321 fixed to the cable 340. The main plate surface of the main plate 321 is arranged perpendicular to the flow direction of the water flow WD. The

wings

322, 323 are swingably provided on both sides of the main plate 321, respectively. The deployment mechanism 324 is disposed on the main board 321, and is connected to the cable 340. The movable mechanism 330 includes a main plate 331, two

wings

332, 333, a deployment mechanism 334, and a main spring 335. The main spring 335 is disposed on the cable 340, and has one end disposed on the main board 331 and the other end away from the main board 331 fixed to the cable 340. The main plate surface of the main plate 331 is disposed perpendicular to the flow direction of the water flow WD.

Wings

332, 333 are swingably provided on both sides of the main plate 331, respectively. The deployment mechanism 334 is provided on the main board 331, and is connected to the cable 340. In the present embodiment, when the movable mechanism 320 is in the unfolding mode, the

wings

322, 323 are unfolded after swinging to form a large-area plane with the main board 321. When the movable mechanism 330 is in the folding mode, the flaps 332 swing counterclockwise, and the flaps 333 swing clockwise and then fold to be perpendicular to the main board 321.

In other words, when the movable mechanism 320 is in the extended mode, the main plate 321 and the

wings

322 and 323 form a large-area plane, so that the large-area plane can receive more water flow thrust of the water flow WD, and the movable mechanism 320 moves along the water flow direction of the water flow WD. Meanwhile, when the movable mechanism 330 is in the retracted mode, since the

wings

332 and 333 are perpendicular to the main plate 331 after being pushed by the water flow WD, the movable mechanism 330 is moved against the water flow direction of the water flow WD with a smaller water flow thrust (smaller water resistance) of the water flow WD received by the main plate 331 only and smaller pulling force provided to the cable 340 by the moving mechanism 320.

It is noted that when the movable mechanism 320 moves to the farthest movable distance, the main spring 325 is stretched and provides the buffering distance if the pulling force provided by the cable 340 is greater than an elastic force of the main spring 325. And, at the next alternate point in time, when the main spring 325 is fully extended, the

wings

322, 323 of the movable mechanism 320 will swing and collapse to switch to the collapsed mode. At the same time, the movable mechanism 330 moves to the power generation module 310 to abut against a stopper (not shown) by the main spring 335, and switches to the deployed mode. Thus, at the next alternate point in time, the

wings

332, 333 of the movable mechanism 330 are deployed to receive the flow thrust of the water flow WD to move away from the power generation module 310, and the

wings

322, 323 of the movable mechanism 320 are retracted to be pulled by the cable 340 to move toward the power generation module 310. By analogy, at the next alternate point in time, the

moveable mechanisms

320, 330 will alternate back and forth again. Therefore, the power generation module 310 of the present embodiment can obtain rotational power via the cable 340 based on the repeated reciprocating movement of the

movable mechanisms

320 and 330, and efficiently generate power.

In addition, in an embodiment, the current generation apparatus 300 may further include a guide (not shown) disposed along the second direction P2, such as a guide rail or a slide rail. That is, the

movable mechanisms

320, 330 may be combined with the guides so that the

movable mechanisms

320, 330 move linearly along the guides without being offset.

Fig. 3 is a side view of the embodiment of fig. 2 according to the invention. Referring to fig. 2 and 3, the current generator 300 may further include a cable 340 ' and guide rails 350, 350 ', 360 '. The movable mechanism 320 may further include a main spring 325'. The movable mechanism 330 may further include a main spring 335'. The power generation module 310 may include a rotatable mechanism 311, a speed increaser 312, and a generator 313. The generator 313 may include, for example, a rotor (rotor) and a stator (stator), wherein the rotor may receive the rotational power according to the embodiments of the present invention, such that the rotor may rotate corresponding to the stator, thereby generating electric power.

In the present embodiment, the upper and lower sides of the main plate 321 of the movable mechanism 320 may be installed into the guide rails 350, 350 'so that the main plate 321 of the movable mechanism 320 may move along the guide rails 350, 350'. The upper and lower sides of the main plate 331 of the movable mechanism 330 may be fitted into the guide rails 360, 360 'so that the main plate 331 of the movable mechanism 330 can move along the guide rails 360, 360'. Also, in the present embodiment, both ends of the main plate 321 of the movable mechanism 320 may be connected with cables 340, 340 ', and main springs 325, 325 ' are sleeved so that the movable mechanism 320 may stably move linearly along the guide rails 350, 350 '. Similarly, the main plate 331 of the movable mechanism 330 has two ends to which the cables 340, 340 ' are connected and on which the main springs 335, 335 ' are fitted so that the movable mechanism 330 can stably move linearly along the guide rails 360, 360 '. In other words, the cables 340, 340' are stretched synchronously and simultaneously provide rotational power to the power generation module 310.

Furthermore, in the present embodiment, the rotatable mechanism 311 may have two rotating discs and a rotating shaft, for example, so that the cables 340 and 340 'can be respectively sleeved on one rotating disc of the rotatable mechanism 311, and the rotatable mechanism 311 can rotate correspondingly with the stretching of the cables 340 and 340'. In the present embodiment, the speed increaser 312 is coupled with the generator 313, and is provided on the rotatable mechanism 311. Therefore, when the

movable mechanisms

320, 330 are interlocked, the speed increaser 312 supplies the rotational power obtained by the rotatable mechanism 311 via the cables 340, 340' to the generator 313 to generate electricity. Therefore, the

movable mechanisms

320, 330 of the present embodiment can be automatically and smoothly repeatedly reciprocated, and accordingly the generator 313 can stably and continuously generate power.

FIG. 4 is a block diagram of a movable mechanism in accordance with an embodiment of the present invention. Referring to fig. 4, the movable mechanism 420 of fig. 4 is an embodiment of a movable mechanism suitable for use in various embodiments of the present invention, but the present invention is not limited thereto. In the present embodiment, the movable mechanism 420 includes a main plate 421,

wings

422, 423, an expanding mechanism 424, and a main spring 425. The main spring 425 is sleeved on the cable 440, and one end of the main spring is disposed on the main board 421, and the other end of the main spring away from the main board 321 is fixed to the cable 440. In the present embodiment, the unfolding mechanism 424 further comprises a top support 427 and a secondary spring 428. The top support 427 is disposed through the main board 421 and the unfolding mechanism 424, and is connected to an end of the cable 440, the end of the cable 440 fixed to the main spring 425 is a buffer section 441 of the cable 440, a linear length of the buffer section 441 is greater than a free length of the main spring 425, and a difference between the linear length of the buffer section 441 and the free length of the main spring 425 is the buffer length. The top support 427 may be a latch, for example. The secondary spring 428 is sleeved on the top support member 427, and one end of the secondary spring 428 abuts against a radial flange (not shown) of the top support member 427, and the other end abuts against the main plate 421. In this embodiment, the unfolding mechanism 424 further has two sliders 426 and 426' capable of reciprocating and relatively moving in parallel with the first direction P1. The top support member 427 can penetrate into or withdraw from a slit provided in the two sliders 426, 426 'to move the sliders 426, 426' away from or toward each other. In the present embodiment, the main plate surface of the main plate 421 is disposed perpendicular to the flow direction of the flow WD. The

wings

422 and 423 may be coupled to the main plate 421 by a rotatable member (not shown) to be swingably provided on both sides of the main plate 421, respectively. In the present embodiment, the unfolding mechanism 424 determines whether to fold or unfold the

wings

422 and 423 according to the tension of the cable 440.

In detail, the movable mechanism 420 shown in fig. 4 is in the deployed mode. In the extended mode, when the pulling force provided by the cable 440 is less than an elastic force of the main spring 425, the buffer section 411 of the cable 440 is not straightened. The pulling force provided by cable 440 to secondary spring 428 is less than the spring force of secondary spring 428 against brace 427. Thus, as shown in fig. 4, the top support 427 is pushed into position to jam the deployment mechanism 424 via the secondary spring 428, and the sliders 426, 426' are moved away from each other so that the

wings

422, 423 are supported for deployment. However, during movement of the movable mechanism 420, when the cable 440 provides a pulling force greater than the spring force of the main spring 425 and the movable mechanism 420 has moved to the farthest movable distance, the main spring 425 may be stretched and the buffer section 441 of the cable 440 is completely straightened, and when the cable 440 provides a pulling force greater than the spring force of the main spring 425 and the secondary spring 428 is compressed, the brace 427 is displaced in a direction opposite to the second direction P2 to release the brace 427 from the gap of the deployment mechanism 424. Also, the sliders 426, 426' are moved closer to each other by a return element (e.g., a spring, not shown) and no longer support the

wings

422, 423, so that the

wings

422, 423 swing and collapse. In this regard, the movable mechanism 420 may be switched to the closed mode.

In other words, when the top support member 427 is pulled by the cable 440, the

wings

422, 423 will automatically collapse if the top support member 427 is no longer engaged with the deployment mechanism 424. By analogy, when the pulling force provided by the cable 440 is less than the force of the secondary spring 428 against the brace 427, the secondary spring 428 resets the brace 427 to again grip the deployment mechanism 424, and the sliders 426, 426' move away from each other, causing the

wings

422, 423 to swing and deploy. In this regard, the movable mechanism 420 may be re-switched to the deployed mode. Therefore, the movable mechanism 420 of the present embodiment can be repeatedly operated in the unfolding mode and the folding mode to generate an automatic continuous moving effect.

In summary, the current-type power generation apparatus of the present invention can place two movable mechanisms in a flowing water area having a single water flow direction, and the two movable mechanisms can be automatically and repeatedly switched between an unfolding mode and a folding mode, so that the two movable mechanisms are pulled and displaced in the flowing water area to continuously generate a driving force to the power generation module, so that the power generation module can provide good and stable power generation efficiency. In addition, from another aspect, the current type power generation device of the present invention does not need to be provided with a complicated mechanism (without additionally providing a flow guide plate and a flow guide plate), so the current type power generation device of the present invention can effectively avoid destroying the biological ring ecology of the flowing water area, and has a characteristic of not easily affecting the drainage flow rate of the flowing water area.

Although the present invention has been described with reference to the above embodiments, it should be understood that various changes and modifications can be made therein by those skilled in the art without departing from the spirit and scope of the invention.

Claims

1. A current power generation device, comprising:

a power generation module; and

two movable mechanisms disposed in a flowing water area, wherein the two movable mechanisms are connected to the power generation module via a cable,

wherein one of the two movable mechanisms is connected to one end of the cable and the other of the two movable mechanisms is connected to the other end of the cable,

when one of the two movable mechanisms is in an expansion mode and the other of the two movable mechanisms is in a contraction mode, one of the two movable mechanisms moves along the water flow direction and the other of the two movable mechanisms moves against the water flow direction, so that the power generation module obtains driving force through the cable to generate power.

2. The device according to claim 1, wherein the two movable mechanisms are disposed in parallel in the flowing water area and linearly move in opposite directions.

3. The device of claim 1, wherein the two movable mechanisms are alternately switched between the deployed mode and the stowed mode.

4. The Sichuan power generation device of claim 1, wherein the power generation module comprises:

a generator;

a rotatable mechanism, wherein the cable is sleeved on the rotatable mechanism; and

a speed increaser coupled to the generator and disposed on the rotatable mechanism,

when the two movable mechanisms are linked, the speed increaser provides the rotating power obtained by the rotatable mechanism through the cable to the generator to generate electricity.

5. The apparatus of claim 1, wherein the two movable mechanisms respectively comprise:

the main board is provided with a main board surface which is perpendicular to the water flow direction;

the two guide rails are arranged on the upper side and the lower side of the main board so that the main board can move along the two guide rails;

two wing plates which are respectively arranged on two sides of the main plate in a swinging way; and

and the unfolding mechanism is arranged on the main board and connected with the cable, and the unfolding mechanism determines whether to fold or unfold the two wing plates according to the pulling force provided by the cable.

6. The device of claim 5, wherein the two movable mechanisms further comprise:

the main spring is sleeved on the cable, one end of the main spring is arranged on the main board, the other end of the main spring is fixedly connected to the cable, and when the pulling force provided by the cable is larger than the elastic force of the main spring, the main spring stretches and provides a buffer distance.

7. The apparatus of claim 6, wherein each of the deployment mechanisms of the two movable mechanisms further comprises:

the top support piece is arranged in a gap between the main board and the unfolding mechanism in a penetrating mode and is connected with the cable; and

the secondary spring is sleeved on the top support piece, one end of the secondary spring is propped against the top support piece, and the other end of the secondary spring is propped against the main board,

when the pulling force provided by the cable is larger than the elastic force of the main spring and the secondary spring is compressed to enable the top support piece to move, the unfolding mechanism is loosened so as to enable the two wing plates to swing and fold.

8. The apparatus of claim 7, wherein when the pulling force provided by the cable is smaller than the elastic force of the main spring, the secondary spring resets the top support member to clamp the deployment mechanism, so that the two wings swing and deploy.

9. The apparatus of claim 7, wherein the deployment mechanism of each of the two movable mechanisms further comprises:

two sliding blocks capable of reciprocating and relatively moving, wherein the top supporting part penetrates into or is drawn out of a gap between the two sliding blocks so as to enable the two sliding blocks to be far away from or close to each other.

10. The device of claim 5, wherein when the two flaps of one of the two movable mechanisms are swung to be unfolded, one of the two movable mechanisms receives a water flow thrust of the flowing water through the two flaps to move in the water flow direction, and the two flaps of the other of the two movable mechanisms are swung at the same time to be folded, wherein the other of the two movable mechanisms is moved against the water flow direction in accordance with the pulling force of the cable.