Solar heat and wave energy combined power generation device

Abstract

The invention belongs to the technical field of renewable energy power generation, and discloses a solar heat and wave energy combined power generation device. The device comprises a solar heat absorption device, a solar heat power generation component, a medium condensing device, a communicating pipeline and a wave energy power generation component, wherein the solar heat absorption device is circularly connected with the solar power generation component and the medium condensing device; the solar thermal power generation component is used for receiving the overflowing medium and generating power; a first overflowing channel and a second overflowing channel which are in heat transfer connection are formed in the medium condensing device, the first overflowing channel is arranged to be a channel for waves to enter, and the two ends of the second overflowing channel are connected to inlets of the solar thermal power generation component and the solar thermal absorption device respectively; the wave energy power generation component is located on the medium condensing device, and when waves enter and exit from the first overflowing channel, the wave energy power generation component can generate electric energy. By means of the arrangement, the power generation efficiency is improved, additionally-arranged devices used for condensing overflowing media can be omitted, the manufacturing cost is reduced, and the structure is simplified.

Description

Technical Field

[0001] The present invention relates to the field of renewable energy power generation, and in particular to a solar thermal and wave energy combined power generation device. Background Art

[0002] As the core of new energy development, renewable energy generation has been widely used in various industries. As a clean and renewable energy, the development and utilization of solar energy will not pollute the environment. Among the ways of solar power generation on the market today, one is solar thermal power generation, which is to focus sunlight through mirrors or lenses and other equipment to convert it into thermal energy. The thermal energy is used to heat the fluid to generate steam, which then drives the turbine to rotate. The rotation of the turbine is then converted into electrical energy through a generator.

[0003] However, the above-mentioned power generation device requires the use of a complex focusing system, which not only makes the structure of the power generation device complicated, but also is not conducive to improving the power generation efficiency, so that there is still a large room for improvement in the power generation performance. Summary of the invention

[0004] The purpose of the present invention is to provide a solar thermal and wave energy combined power generation device, which can improve power generation efficiency, reduce manufacturing costs, simplify structure, and thus enhance reliability and economy.

[0005] To achieve this object, the present invention adopts the following technical solutions:

[0006] A solar thermal and wave energy combined power generation device comprises a solar thermal absorption device, a solar thermal power generation component, a medium condensation device, a connecting pipeline and a wave energy power generation component, wherein the solar thermal absorption device is cyclically connected with the solar thermal power generation component and the medium condensation device through the connecting pipeline, wherein: a flow medium is arranged to flow in the connecting pipeline; the solar thermal power generation component is located between the outlet of the solar thermal absorption device and the inlet of the medium condensation device, and is used to receive the vaporized flow medium and generate electricity; a first flow passage and a second flow passage connected by heat transfer are provided in the medium condensation device, the first flow passage is set as a channel for waves to enter, a first port of the second flow passage is connected to the solar thermal power generation component through the connecting pipeline, and a second port of the second flow passage is connected to the inlet of the solar thermal absorption device through the connecting pipeline; the wave energy power generation component is located on the medium condensation device, and when waves enter and exit the first flow passage, the wave energy power generation component can generate electrical energy.

[0007] Preferably, the solar heat absorption device comprises a heat absorption device body and a first buoyancy member, wherein:

[0008] The heat absorption device body has a heat absorption inner cavity for storing a liquid flow medium, and the heat absorption inner cavity is provided with a first opening and a second opening at both ends, the first opening is connected to the solar thermal power generation component and the first port of the second flow channel through the connecting pipe, and the second opening is connected to the second port of the second flow channel through the connecting pipe;

[0009] The first buoyancy member is connected to the heat absorbing device body and is used to float the heat absorbing device body on the water surface.

[0010] Preferably, along the axis of the heat absorption device body and in the direction from the first opening to the second opening, the heat absorption device body is a conical hollow structure with a gradually increasing horizontal cross-sectional area.

[0011] Preferably, the solar heat absorption device further comprises an isolation member and a heat insulating member, wherein a sealing cover of the isolation member is arranged on the top of the heat absorption device body, and a light-transmitting portion is arranged on the isolation member, and the heat insulating member is arranged between the heat absorption device body and the water surface.

[0012] Preferably, the solar thermal absorption device also includes a guide portion, which is arranged at the first opening, and a guide channel is arranged through the guide portion, the first port of the guide channel is connected to the first opening, and the second port of the guide channel is connected to the solar thermal power generation component and the first port of the second flow channel through the connecting pipe.

[0013] Preferably, the medium condensing device comprises a condensing device body and a second buoyancy member, the first flow channel and the second flow channel are provided in the condensing device body, the wave energy power generation component is installed on the condensing device body, and the second buoyancy member is connected to the condensing device body and is used to float the condensing device body on the water surface.

[0014] Preferably, a strip plate is protruding from the outer side surface of the condensing device body, and the interior of the strip plate is hollow and communicated with the second flow channel.

[0015] Preferably, a plurality of the strip plates are arranged at intervals along the circumferential direction on the outer side surface of the condensing device body.

[0016] Preferably, it further comprises a sunshade structure, and the sunshade structure is arranged above the medium condensing device.

[0017] Preferably, it also includes a solar photovoltaic power generation component, which is attached to the top of the sunshade structure.

[0018] The beneficial effects of the solar thermal and wave energy combined power generation device provided by the present invention are as follows:

[0019] In the above power generation device, the vaporized flow medium can be connected to the waves entering the first flow channel for heat transfer, so that the wave energy can cool the vaporized flow medium. At the same time, since the wave energy power generation component is located on the medium condensation device, when the waves enter and exit the first flow channel, the wave energy power generation component can also generate electricity. In this way, through the above arrangement, not only the power generation efficiency is effectively improved, but also the additional device for condensing the flow medium can be saved, thereby reducing the manufacturing cost, simplifying the structure, and enhancing the reliability and economy of use. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A schematic diagram of the structure of a solar thermal and wave energy combined power generation device provided in an embodiment of the present invention;

[0021] Figure 2 A schematic diagram of the structure of a solar heat absorption device provided in an embodiment of the present invention;

[0022] Figure 3 A schematic diagram of the structure of a medium condensing device provided in an embodiment of the present invention;

[0023] Figure 4 For along Figure 3 Cross-sectional view at AA in the middle.

[0024] In the figure:

[0025] 1. Solar thermal absorption device; 11. Heat absorption device body; 111. Heat absorption inner cavity; 1111. First opening; 1112. Second opening; 12. First buoyancy member; 13. Guide portion; 131. Guide channel; 14. Isolation member; 15. Heat insulation member;

[0026] 2. Solar thermal power generation components;

[0027] 3. medium condensing device; 301. first flow passage; 302. second flow passage; 303. third opening; 31. condensing device body; 311. strip plate; 32. second buoyancy member;

[0028] 4. Connecting pipeline; 41. Flow medium;

[0029] 5. Wave energy power generation components;

[0030] 6. Sunshade structure;

[0031] 7. Solar photovoltaic power generation components. DETAILED DESCRIPTION

[0032] The present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It is to be understood that the specific embodiments described herein are only used to explain the present invention, rather than to limit the present invention. It should also be noted that, for ease of description, only parts related to the present invention, rather than all structures, are shown in the accompanying drawings.

[0033] In the description of the present invention, unless otherwise clearly specified and limited, the terms "connected", "connected", and "fixed" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0034] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0035] In the description of this embodiment, the terms "upper", "lower", "right", "left" and other directions or positional relationships are based on the directions or positional relationships shown in the drawings, and are only for the convenience of description and simplification of operation, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operate in a specific direction, and therefore cannot be understood as limiting the present invention. In addition, the terms "first" and "second" are only used to distinguish in the description and have no special meaning.

[0036] The purpose of the present invention is to provide a solar thermal and wave energy combined power generation device, comprising a solar thermal absorption device 1, a solar thermal power generation component 2, a medium condensation device 3, a connecting pipe 4 and a wave energy power generation component 5. The solar thermal absorption device 1 is cyclically connected with the solar power generation component 2 and the medium condensation device 3 through the connecting pipe 4, and a flow medium 41 is provided in the connecting pipe 4; the solar thermal power generation component 2 is located between the outlet of the solar absorption device and the inlet of the medium condensation device 3, and the flow medium 41 can be heated and vaporized in the solar absorption device, and the vaporized flow medium 41 is transported to the solar thermal power generation component 2 through the connecting pipe 4. It can be understood that the solar thermal power generation component 2 often includes a turbine and a generator, and the vaporized flow medium 41 drives the turbine in the solar thermal power generation component 2 to rotate through a set flow mode, and the rotation of the turbine is then converted into electrical energy through the generator in the solar thermal power generation component 2, thereby generating electricity.

[0037] In addition, a first flow channel 301 and a second flow channel 302 connected for heat transfer are provided in the medium condensation device 3. The first flow channel 301 is configured as a channel for waves to enter. The first port of the second flow channel 302 is connected to the solar thermal power generation component 2 through a connecting pipe 4. The second port of the second flow channel 302 is provided with a third opening 303, and is connected to the inlet of the solar thermal absorption device 1 through a connecting pipe 4. The vaporized flow medium 41 is transported to the second flow channel 302 through the solar thermal power generation component 2 for cooling, and is turned back into a liquid flow medium 41, and then returns to the solar thermal absorption device 1 through the connecting pipe 4, thereby realizing the circulation of the flow medium 41 between the solar thermal absorption device 1 and the medium condensation device 3.

[0038] In the above process, the vaporized flow medium 41 can be connected to the waves entering the first flow channel 301 for heat transfer, so that the wave energy can cool the vaporized flow medium 41. At the same time, since the wave energy power generation component 5 is located on the medium condensation device 3, the wave energy power generation component 5 can also generate electricity when the waves enter and exit the first flow channel 301. In this way, through the above arrangement, not only the power generation efficiency is effectively improved, but also the additional device for condensing the flow medium 41 can be saved, thereby reducing the manufacturing cost, simplifying the structure, and enhancing the reliability and economy of use.

[0039] Specifically, in this embodiment, refer to Figure 2As shown, the solar heat absorption device 1 includes a heat absorption device body 11 and a first buoyancy member 12, wherein the heat absorption device body 11 has a heat absorption inner cavity 111 for storing a liquid flow medium 41, and the heat absorption inner cavity 111 is provided with a first opening 1111 and a second opening 1112 at both ends, respectively, the first opening 1111 is connected to the first port of the solar thermal power generation component 2 and the second flow channel 302 through a connecting pipe 4, and the second opening 1112 is connected to the second port of the second flow channel 302 through a connecting pipe 4; the first buoyancy member 12 is connected to the heat absorption device body 11, and can float the heat absorption device body 11 on the water surface to provide buoyancy support for the heat absorption device body 11, and the setting of the first buoyancy member 12 enables the heat absorption device body 11 to remain in a floating state under the action of waves, and can stably absorb solar energy. Optionally, the first buoyancy member 12 can be a floating body of a hollow foam material, or a composite material buoyancy member, etc., which is not limited in this embodiment.

[0040] Specifically, in this embodiment, along the axis of the heat absorbing device body 11, and in the direction from the first opening 1111 to the second opening 1112, the heat absorbing device body 11 is a conical hollow structure with a gradually increasing horizontal cross-sectional area. Through the above arrangement, the coverage area of ​​the heat absorbing device body 11 directly irradiated by sunlight can be effectively increased, thereby increasing the heat absorption surface area of ​​the heat absorbing device body 11, making the temperature rise effect more obvious. In addition, the flow path of the flow medium 41 is also optimized. Compared with the heat absorbing device body 11 in the form of a flat plate, the vaporized flow medium 41 can be prevented from accumulating at the first opening 1111, so that the vaporized flow medium 41 after absorbing heat can leave the first opening 1111 more reliably and efficiently, thereby helping to improve the power generation efficiency.

[0041] It should be noted that, in this embodiment, the overflow medium 41 is a low-boiling-point overflow medium 41, so as to accelerate the vaporization process. In this way, the power generation efficiency of the solar thermal power generation component 2 can be effectively improved under the condition of higher heating efficiency and faster vaporization process.

[0042] More specifically, in this embodiment, the solar thermal absorption device 1 further includes a guide portion 13. One implementation method provided in this embodiment is that the guide portion 13 is a straight cylindrical structure, which is integrally formed and arranged at the first opening 1111 of the heat absorption device body 11, and a guide channel 131 is arranged inside the guide portion 13, and the first port of the guide channel 131 is connected to the first opening 1111, and the second port of the guide channel 131 is connected to the solar thermal power generation component 2 and the first port of the second flow channel 302 through the connecting pipe 4. Through the setting of the guide portion 13, the vaporized flow medium 41 can be effectively guided from the first opening 1111 into the connecting pipe 4, ensuring the uniformity and smoothness of the flow of the flow medium 41, which is conducive to improving the thermal efficiency.

[0043] Optionally, the solar heat absorption device 1 provided in this embodiment further includes an isolator 14 and a heat insulating member 15. One implementation of this embodiment is that the isolator 14 is an annular plate and is sleeved on the top of the guide portion 13. The outer edge of the isolator 14 is fixedly connected to the bottom of the heat absorption device body 11, and a sealing cover is arranged on the top of the heat absorption device body 11. A light-transmitting portion is arranged on the isolator 14, so that the heat absorption device body 11 can absorb solar energy through the light-transmitting portion, and external water vapor can be prevented from contacting the heat absorption device body 11 and affecting the flow medium 41. The heat insulating member 15 is arranged between the heat absorption device body 11 and the water surface to thermally isolate the heat absorption device body 11 from the water surface and prevent heat from being lost to the water surface. Through the arrangement of the above-mentioned isolator 14 and the heat insulating member 15, it is ensured that the heat absorption device body 11 has good thermal insulation, the vaporization efficiency of the flow medium 41 is improved, and the power generation efficiency is improved.

[0044] Optionally, in this embodiment, refer to Figure 3 As shown, the medium condensing device 3 includes a condensing device body 31 and a second buoyancy member 32, wherein the condensing device body 31 is provided with the above-mentioned first flow passage 301 and the second flow passage 302, and a wave energy power generation component 5 is installed on the condensing device body 31; the second buoyancy member 32 is connected to the condensing device body 31 to float it on the water surface. The setting of the second buoyancy member 32 ensures the stability of the condensing device body 31 on the water surface, avoids tilting, ensures the installation stability of the wave energy power generation component 5, and can be connected to the heat absorbing device body 11 through the connecting pipe 4 to form a stable water power generation device, so that the reliability and safety of the use of the entire solar thermal and wave energy combined power generation device is guaranteed. Optionally, similar to the first buoyancy member 12, the second buoyancy member 32 can also be a floating body of hollow foam material, or a composite material buoyancy member, etc.

[0045] It should be noted that, in this embodiment, the connecting pipe 4 connected between the third opening 303 and the second opening 1112 is below the water surface, so that the flow medium 41 can be continuously cooled down through the natural cooling effect of seawater, thereby ensuring that the flow medium 41 is maintained in a suitable temperature range before entering the heat absorption cavity 111, thereby helping to improve the thermal efficiency and stability of the system.

[0046] Further, in this embodiment, referring to Figure 4 As shown, a strip plate 311 is protrudingly provided on the outer side surface of the condensing device body 31, and the interior of the strip plate 311 is hollow and connected to the second flow channel 302, thereby increasing the contact area between the second flow channel 302 and the waves outside the condensing device body 31, and accelerating the cooling efficiency of the flow medium 41.

[0047] Preferably, in this embodiment, the horizontal cross section of the condensing device body 31 is in a "gear" shape, that is, a plurality of strip plates 311 are arranged at intervals along the circumferential direction on the outer side surface of the condensing device body 31, so that the contact area between the second flow passage 302 and the waves in the external environment is further increased, thereby meeting the requirements for the cooling performance of the condensing device body 31 under actual working conditions. It can be understood that this embodiment does not limit the number of strip plates 311.

[0048] Optionally, in this embodiment, refer to Figure 1 As shown, the solar thermal and wave energy combined power generation device further includes a sunshade structure 6. The sunshade structure 6 shielding cover is arranged above the medium condensing device 3, which can reduce the irradiation of sunlight on the condensing device body 31, reduce the temperature of the condensing device body 31 and improve the cooling efficiency. Referring to the prior art, the type of the sunshade structure 6 can be a sunshade net, a sunshade board, a sunshade film or a sunshade canvas, etc., which is not limited in this embodiment.

[0049] Optionally, in this embodiment, continue to refer to Figure 1 As shown, the solar thermal and wave energy combined power generation device also includes a solar photovoltaic power generation component 7, and the solar photovoltaic power generation component 7 is attached to the top of the sunshade structure 6, so that the solar thermal and wave energy combined power generation device can improve the cooling efficiency through the sunshade structure 6, and at the same time, it can also reasonably utilize the space by setting the solar photovoltaic power generation component 7 on the top of the sunshade structure 6, and further improve the power generation efficiency, so that the solar thermal and wave energy combined power generation device not only has a high space utilization rate, but also effectively improves the overall power generation efficiency and synergy effect, so that the power generation device can maintain a high operating efficiency under different environmental conditions.

[0050] In the description of this specification, the description with reference to the terms "some embodiments", "other embodiments", etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0051] Obviously, the above embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. For those skilled in the art, various obvious changes, readjustments and substitutions can be made without departing from the protection scope of the present invention. It is not necessary and impossible to list all the embodiments here. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the claims of the present invention.

Claims

1. A solar thermal and wave energy combined power generation device, characterized in that: The invention comprises a solar heat absorption device (1), a solar heat power generation component (2), a medium condensation device (3), a connecting pipeline (4) and a wave energy power generation component (5), wherein the solar heat absorption device (1) is cyclically connected to the solar heat power generation component (2) and the medium condensation device (3) via the connecting pipeline (4), wherein: A flow medium (41) is arranged to flow in the connecting pipeline (4); The solar thermal power generation component (2) is located between the outlet of the solar thermal absorption device (1) and the inlet of the medium condensation device (3), and is used to receive the vaporized flow medium (41) and generate electricity; The medium condensing device (3) is provided with a first flow passage (301) and a second flow passage (302) connected in heat transfer, the first flow passage (301) being configured as a channel for waves to enter, the first port of the second flow passage (302) being connected to the solar thermal power generation component (2) via the connecting pipe (4), and the second port of the second flow passage (302) being connected to the inlet of the solar thermal absorption device (1) via the connecting pipe (4); The wave energy power generation component (5) is located on the medium condensation device (3), and when waves enter and exit the first flow passage (301), the wave energy power generation component (5) can generate electrical energy.

2. The solar thermal and wave energy combined power generation device according to claim 1, characterized in that: The solar heat absorption device (1) comprises a heat absorption device body (11) and a first buoyancy member (12), wherein: The heat absorption device body (11) comprises a heat absorption inner cavity (111) for storing a liquid flow medium (41); the heat absorption inner cavity (111) is provided with a first opening (1111) and a second opening (1112) at two ends thereof; the first opening (1111) is connected to the solar thermal power generation component (2) and the first port of the second flow channel (302) through the connecting pipe (4); the second opening (1112) is connected to the second port of the second flow channel (302) through the connecting pipe (4); The first buoyancy member (12) is connected to the heat absorbing device body (11) and is used to float the heat absorbing device body (11) on the water surface.

3. The solar thermal and wave energy combined power generation device according to claim 2, characterized in that: Along the axis of the heat absorption device body (11), and in a direction from the first opening (1111) to the second opening (1112), the heat absorption device body (11) is a conical hollow structure with a gradually increasing horizontal cross-sectional area.

4. The solar thermal and wave energy combined power generation device according to claim 2, characterized in that: The solar heat absorption device (1) further comprises an isolation member (14) and a heat insulating member (15); the sealing cover of the isolation member (14) is arranged on the top of the heat absorption device body (11), and a light-transmitting portion is arranged on the isolation member (14); the heat insulating member (15) is arranged between the heat absorption device body (11) and the water surface.

5. The solar thermal and wave energy combined power generation device according to claim 2, characterized in that: The solar thermal absorption device (1) further comprises a flow guide portion (13), the flow guide portion (13) being arranged at the first opening (1111), and a flow guide channel (131) penetrating the flow guide portion (13), the first port of the flow guide channel (131) being connected to the first opening (1111), and the second port of the flow guide channel (131) being connected to the solar thermal power generation component (2) and the first port of the second flow channel (302) via the connecting pipe (4).

6. The solar thermal and wave energy combined power generation device according to claim 1, characterized in that: The medium condensing device (3) comprises a condensing device body (31) and a second buoyancy member (32); the first flow passage (301) and the second flow passage (302) are provided in the condensing device body (31); the wave energy power generation component (5) is installed on the condensing device body (31); the second buoyancy member (32) is connected to the condensing device body (31) and is used to float the condensing device body (31) on the water surface.

7. The solar thermal and wave energy combined power generation device according to claim 6, characterized in that: A strip plate (311) is protrudingly provided on the outer side surface of the condensing device body (31), and the interior of the strip plate (311) is hollow and communicated with the second flow passage (302).

8. The solar thermal and wave energy combined power generation device according to claim 7, characterized in that: A plurality of strip plates (311) are arranged at intervals along the circumferential direction on the outer side surface of the condensing device body (31).

9. The solar thermal and wave energy combined power generation device according to claim 1, characterized in that: It also comprises a sunshade structure (6), wherein the sunshade structure (6) is arranged above the medium condensing device (3).

10. The solar thermal and wave energy combined power generation device according to claim 9, characterized in that: It also comprises a solar photovoltaic power generation component (7), and the solar photovoltaic power generation component (7) is attached to the top of the sunshade structure (6).

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