A bidirectional energy-gathering power generation device suitable for reciprocating flow sea areas

Abstract

The application discloses a bidirectional energy-gathering power generation device suitable for reciprocating flow sea areas and relates to the field of tidal current power generation. The device comprises a main pipe, a branch pipe, a current collecting cover, a ring-shaped shell, a first power generation mechanism and a second power generation mechanism. The main pipe penetrates through the ring-shaped shell and extends to the outside from both ends of the ring-shaped shell. The side wall of the main pipe is provided with an opening, the opening is located in the inner cavity of the ring-shaped shell, one end of the main pipe is provided with the current collecting cover, the inside of the main pipe close to the one end of the current collecting cover is provided with the first power generation mechanism, and the first power generation mechanism is a bidirectional power generation mechanism. The branch pipe is arranged on one side of the ring-shaped shell and is in communication with the inner cavity of the ring-shaped shell. The axial direction of the branch pipe and the axial direction of the main pipe form a certain angle. The inside of the branch pipe is provided with the second power generation mechanism. The device has the advantages of simple structure, easy fixing and installation, high actual operation reliability and improved water flow energy utilization rate.

Description

Technical Field

[0001] This invention relates to the field of tidal power generation, and in particular to a bidirectional energy-concentrating power generation device suitable for reciprocating ocean currents. Background Technology

[0002] Currently, tidal energy constitutes a significant portion of ocean energy, with vast reserves and regular flow patterns, making tidal energy power generation a feasible and effective trend. Existing devices are mostly floating to achieve bidirectional power generation, resulting in relatively weak overall reliability in practical applications. Furthermore, they utilize a single type of power generation mechanism, leading to low utilization of water flow energy. Summary of the Invention

[0003] To address the above technical problems, this invention provides a bidirectional energy-concentrating power generation device suitable for reciprocating ocean currents. It has a simple structure, is easy to fix and install, has high reliability in actual operation, and improves the utilization rate of water flow energy.

[0004] To achieve the above objectives, the present invention provides the following solution:

[0005] This invention provides a bidirectional focused energy generation device suitable for reciprocating current sea areas, comprising a main pipe, a branch pipe, a current collector, an circumferential shell, a first power generation mechanism, and a second power generation mechanism. The main pipe passes through the circumferential shell and extends to the outside from both ends of the circumferential shell. An opening is provided on the side wall of the main pipe, and the opening is located in the inner cavity of the circumferential shell. The current collector is provided at one end of the main pipe. The first power generation mechanism is disposed inside the main pipe near the end of the current collector. The first power generation mechanism is a bidirectional power generation mechanism. The branch pipe is disposed on one side of the circumferential shell and communicates with the inner cavity of the circumferential shell. The axial direction of the branch pipe forms a certain angle with the axial direction of the main pipe. The second power generation mechanism is disposed inside the branch pipe.

[0006] Optionally, the second power generation mechanism is a unidirectional power generation mechanism.

[0007] Optionally, the bidirectional power generation mechanism is a bidirectional hydro-turbine generator, and the unidirectional power generation mechanism is a unidirectional hydro-turbine generator.

[0008] Optionally, the opening is a circumferential opening.

[0009] Optionally, the axial direction of the main tube is consistent with the axial direction of the circumferential housing.

[0010] Optionally, the central axis of the main tube is collinear with the central axis of the circumferential housing.

[0011] Optionally, the axial direction of the branch pipe is perpendicular to the axial direction of the main pipe.

[0012] Optionally, the flow collector has a horn-shaped structure.

[0013] The present invention achieves the following technical effects compared to the prior art:

[0014] The present invention relates to a bidirectional energy-concentrating power generation device suitable for reciprocating current sea areas. One end of the main pipe is equipped with a flow collector, and a first power generation mechanism, which is a bidirectional power generation mechanism, is located inside the main pipe near the flow collector. A branch pipe is located on one side of the circumferential shell and communicates with the inner cavity of the circumferential shell. A second power generation mechanism is located inside the branch pipe. This device has a simple structure and is easy to install, requiring no reversal or steering based on the tidal direction, resulting in high operational reliability. The axial direction of the branch pipe forms a certain angle with the axial direction of the main pipe, ensuring that the first and second power generation mechanisms are two different types that do not interfere with each other. This allows the energy of the fluid in both the main pipe and the branch pipe to be utilized, thereby improving the water flow energy utilization rate. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0016] Figure 1 A three-dimensional structural diagram of a bidirectional energy-concentrating power generation device suitable for reciprocating ocean currents provided by the present invention;

[0017] Figure 2 A cross-sectional view of a bidirectional energy-concentrating power generation device suitable for reciprocating ocean currents, provided by the present invention.

[0018] Explanation of reference numerals in the attached drawings: 100, a bidirectional energy-concentrating power generation device suitable for reciprocating current sea areas; 1, main pipe; 2, branch pipe; 3, flow collector; 4, circumferential shell; 5, first power generation mechanism; 6, second power generation mechanism; 7, opening. Detailed Implementation

[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0020] The purpose of this invention is to provide a bidirectional energy-concentrating power generation device suitable for reciprocating ocean currents. It has a simple structure, is easy to fix and install, has high reliability in actual operation, and improves the utilization rate of water flow energy.

[0021] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0022] like Figures 1-2 As shown, this embodiment provides a bidirectional energy-concentrating power generation device 100 suitable for reciprocating current sea areas, including a main pipe 1, a branch pipe 2, a flow collector 3, an circumferential shell 4, a first power generation mechanism 5, and a second power generation mechanism 6. The main pipe 1 passes through the circumferential shell 4 and extends to the outside from both ends of the circumferential shell 4. An opening 7 is provided on the side wall of the main pipe 1, and the opening 7 is located in the inner cavity of the circumferential shell 4, so that the main pipe 1 is connected to the inner cavity of the circumferential shell 4. A flow collector 3 is provided at one end of the main pipe 1. The first power generation mechanism 5 is provided inside the main pipe 1 near the flow collector 3. The first power generation mechanism 5 is a bidirectional power generation mechanism, that is, the fluid in the main pipe 1 can generate electricity when it flows towards the side closer to the flow collector 3 or towards the side farther away from the flow collector 3. The branch pipe 2 is provided on one side of the circumferential shell 4 and is connected to the inner cavity of the circumferential shell 4. The axial direction of the branch pipe 2 is at a certain angle to the axial direction of the main pipe 1, that is, the central axis of the branch pipe 2 is not parallel to and not collinear with the central axis of the main pipe 1. The second power generation mechanism 6 is provided inside the branch pipe 2.

[0023] Since the axis of branch pipe 2 forms a certain angle with the axis of main pipe 1, the second power generation mechanism 6 installed in branch pipe 2 and the first power generation mechanism 5 installed in main pipe 1 also form a certain angle. That is, the installation directions of the first power generation mechanism 5 and the second power generation mechanism 6 are different, and their relationship with the flow direction is different. It can be seen that the first power generation mechanism 5 and the second power generation mechanism 6 in this embodiment are two different forms of power generation mechanisms that do not affect each other, so that the energy of the fluid in main pipe 1 and branch pipe 2 can be utilized, thereby improving the water flow energy utilization rate.

[0024] Specifically, the second power generation mechanism 6 is a unidirectional power generation mechanism, that is, it can generate electricity when the fluid in the branch pipe 2 flows toward the side closer to the circumferential shell 4.

[0025] In this specific embodiment, the bidirectional power generation mechanism is a bidirectional hydro-turbine generator, and the unidirectional power generation mechanism is a unidirectional hydro-turbine generator.

[0026] In order to ensure that the fluid in the branch pipe 2 can be fully carried into the main pipe 1, the opening 7 in this embodiment is a circumferential opening.

[0027] Specifically, the axial direction of the main tube 1 is consistent with the axial direction of the circumferential housing 4.

[0028] In this specific embodiment, the central axis of the main pipe 1 is collinear with the central axis of the circumferential housing 4, that is, the main pipe 1 is centered relative to the circumferential housing 4.

[0029] Specifically, the axis of branch pipe 2 is perpendicular to the axis of main pipe 1.

[0030] In this specific embodiment, the flow collector 3 has a horn-shaped structure.

[0031] During installation, the axis of the main pipe 1 is aligned with the flow direction. When there is a positive flow velocity, the fluid flows in from the collector shroud 3, passes through the large-diameter circumferential guide of the collector shroud 3, and as it flows forward, the diameter gradually decreases, and the fluid velocity increases. Finally, when it reaches the main pipe 1, the flow velocity peaks and converges, at which point the first power generation mechanism 5 generates electricity. Here, the positive flow direction is fully utilized. Subsequently, the relatively weaker flow velocity continues to flow forward. When it reaches the circumferential shell 4, the remaining flow velocity will drive some of the fluid from the branch pipe 2 to flow into the main pipe 1 from the circumferential opening. At this time, the second power generation mechanism 6 will generate electricity. When the flow is positive, the first power generation mechanism 5 plays the main role in generating electricity, while the second power generation mechanism 6 plays an auxiliary role.

[0032] When there is a reverse flow velocity, the background flow field will impact the device from the tail end. The flow collector 3 acts as a flow obstruction on the back flow side, forming a certain shielding area, resulting in local low pressure. As a back flow diffuser, the water entering the main pipe 1 is drawn out by the flow collector 3, which has a large flow velocity. When it reaches the circumferential opening, it forms a high flow velocity, which reduces the flow velocity in the main pipe 1 and causes the fluid in the branch pipe 2 to be carried into the main pipe 1, so that the second power generation mechanism 6 generates electricity. Then the flow velocity is slightly reduced and reaches the first power generation mechanism 5. The first power generation mechanism 5 uses the flow velocity to generate electricity again. In the reverse process, the second power generation mechanism 6 is the main power generation device and the first power generation mechanism 5 is the secondary power generation device.

[0033] The device in this embodiment has a simple structure and is easy to fix and install. It does not require reversing or changing direction according to the flow direction, and its actual operation reliability is high. At the same time, it uses two mutually perpendicular power generation mechanisms to generate electricity. In the case of bidirectional flow, each mechanism plays a dominant role, thereby making full use of tidal energy.

[0034] In this embodiment, the flow collector 3 serves to guide and collect energy during forward flow, increasing the flow velocity within the main pipe 1. During reverse flow, it reduces the pressure on the back side, forcing the fluid from the branch pipe 2 into the main pipe 1. This, in turn, drives the spiral blades of the second power generation mechanism 6 in the branch pipe 2 to rotate, achieving power generation. The circumferential shell 4 provides significant energy collection, maintaining a low-velocity zone within the circumference. Utilizing the pressure difference, it draws the fluid from the branch pipe 2 into the main pipe 1, shielding the fluid within the branch pipe 2 and maximizing the velocity difference between it and the main pipe 1, thereby increasing energy utilization. Therefore, this embodiment, through its structural design and adjustments, maintains a good energy collection effect even under weak external flow velocities.

[0035] This specification uses specific examples to illustrate the principles and implementation methods of the present invention. The descriptions of the above embodiments are only for the purpose of helping to understand the method and core ideas of the present invention. Furthermore, those skilled in the art will recognize that, based on the ideas of the present invention, there will be changes in the specific implementation methods and application scope. Therefore, the content of this specification should not be construed as a limitation of the present invention.

Claims

1. A bidirectional energy-concentrating power generation device suitable for reciprocating current sea areas, characterized in that, The device includes a main pipe, branch pipes, a collector shroud, an circumferential housing, a first power generation mechanism, and a second power generation mechanism. The main pipe passes through the circumferential housing and extends to the outside from both ends of the circumferential housing. An opening is provided on the side wall of the main pipe, and the opening is located in the inner cavity of the circumferential housing. The collector shroud is provided at one end of the main pipe. The first power generation mechanism is provided inside the main pipe near the collector shroud. The first power generation mechanism is a bidirectional power generation mechanism. The branch pipe is provided on one side of the circumferential housing and communicates with the inner cavity of the circumferential housing. The axial direction of the branch pipe forms a certain angle with the axial direction of the main pipe. The second power generation mechanism is provided inside the branch pipe. The second power generation mechanism is a unidirectional power generation mechanism. The axial direction of the branch pipe is perpendicular to the axial direction of the main pipe.

2. The bidirectional focused energy generation device suitable for reciprocating current sea areas according to claim 1, characterized in that, The bidirectional power generation mechanism is a bidirectional hydro-turbine generator, and the unidirectional power generation mechanism is a unidirectional hydro-turbine generator.

3. The bidirectional focused energy generation device suitable for reciprocating current sea areas according to claim 1, characterized in that, The opening is a circumferential opening.

4. The bidirectional focused energy generation device suitable for reciprocating current sea areas according to claim 1, characterized in that, The axial direction of the main tube is consistent with the axial direction of the circumferential housing.

5. The bidirectional focused energy generation device suitable for reciprocating current sea areas according to claim 4, characterized in that, The central axis of the main tube is collinear with the central axis of the circumferential housing.

6. The bidirectional focused energy generation device suitable for reciprocating current sea areas according to claim 1, characterized in that, The flow collector has a trumpet-shaped structure.

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