Wind power structure with air capture system
By designing an annular air capture structure and using direct Joule heating technology, the problems of wind direction dependence and aerodynamic interference in offshore wind power equipment have been solved, achieving efficient air intake and low-energy air capture, and simplifying the maintenance process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- POWERCHINA HUADONG ENG CORP LTD
- Filing Date
- 2025-09-26
- Publication Date
- 2026-07-14
AI Technical Summary
Existing solid-state adsorption DAC technology in offshore wind power installations suffers from problems such as strong wind direction dependence, low air intake efficiency, and maintenance difficulties due to structural complexity.
A ring-shaped air capture structure is designed, including a core adsorption component, an integrated electrode, and an internal air collection chamber. Direct Joule heating is achieved through regenerative current, and 360° ring-shaped air intake is achieved using natural wind. The structure is positioned above the transition section of the fan structure to avoid wave erosion.
It achieves efficient utilization of natural wind power, reduces energy consumption, improves air intake efficiency, and achieves nearly 100% electrothermal conversion efficiency through direct resistance heating, simplifying the structure and reducing maintenance difficulty.
Smart Images
Figure CN224496643U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the technical field of wind power-related equipment, and in particular to a wind power structure with an air capture system. Background Technology
[0002] Direct air capture (DAC) technology is considered one of the key technological pathways to achieve the goals of "carbon neutrality" and "negative emissions". Existing DAC technologies are mainly divided into liquid solvent methods and solid-state adsorption methods. Among them, solid-state adsorption methods have attracted much attention due to their environmental friendliness and non-corrosiveness.
[0003] However, existing solid-state adsorption DAC technology still faces significant challenges in commercial applications. Current concepts often involve simply deploying land-based DAC devices on offshore platforms or attaching them as simple add-on modules to wind turbine towers. This approach is prone to the following problems: Wind direction dependence: The simple attachment design makes its intake efficiency heavily dependent on wind direction, failing to guarantee stable and efficient air handling capacity under variable sea conditions. Aerodynamic interference: Complex flow phenomena between the device and the tower generate eddies and localized pressure drops, further reducing intake efficiency. Structural and maintenance complexity: Simple stacking leads to structural redundancy, making maintenance difficult and hindering adaptation to the harsh marine environment. Utility Model Content
[0004] The purpose of this invention is to provide a wind power structure with an air capture system to alleviate the technical problems existing in the prior art, such as strong dependence on wind direction, low air intake efficiency due to aerodynamic interference, and difficult maintenance due to complex structure.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] In a first aspect, this utility model provides a wind power structure with an air capture system, including a wind turbine structure and an air capture structure, wherein the air capture structure is configured as a ring structure to capture natural wind from an external source in a 360° direction.
[0007] The air capture structure is sleeved and connected above the transition section of the fan structure;
[0008] The air capture structure includes a core adsorption component, an integrated electrode, and an internal air collection chamber, which is connected to the fan structure.
[0009] The inner air collection chamber is provided with the core adsorption component along the circumferential direction of the outer wall, and the integrated electrode is provided between the inner air collection chamber and the core adsorption component;
[0010] The integrated electrode is provided circumferentially on the side of the core adsorption component facing away from the inner air collection chamber;
[0011] The integrated electrode is used to connect to an external power supply device.
[0012] Furthermore, the core adsorption component includes multiple core adsorption monomers, each of which is a fan-shaped protrusion structure, and the multiple core adsorption monomers are connected in sequence to form a ring array surrounding the fan structure.
[0013] Furthermore, the core adsorbent monomer includes an outer shell and a modular cone, the modular cone being filled within the outer shell, and the modular cone comprising a conductive carbon dioxide adsorbent material.
[0014] Furthermore, the two sets of integrated electrodes are respectively disposed on both sides of the core adsorption component, and the integrated electrodes are used for resistive heating of the core adsorption component.
[0015] Furthermore, the inner air collection chamber is provided with a carbon dioxide collection microtube network, and the top and / or bottom of the inner air collection chamber are provided with exhaust ports.
[0016] Furthermore, the air capture structure also includes an air pretreatment component, which is connected to the side of the core adsorption component away from the fan structure via a corresponding integrated electrode;
[0017] The air pretreatment component includes large-particle water-carrying silica gel and polymer mesh material.
[0018] Furthermore, the air capture structure also includes multiple louvers, which are spaced apart along the outer edge of the air pretreatment component to introduce natural wind into the air capture structure.
[0019] Furthermore, the louvers are configured with an airfoil blade structure, and the outer edge of the louvers is made of rubber.
[0020] Furthermore, the wind turbine structure includes a wind turbine tower and a wind turbine foundation, with the wind turbine tower mounted on top of the wind turbine foundation;
[0021] The transition section is provided at one end of the wind turbine tower facing the wind turbine foundation.
[0022] Furthermore, the outer wall of the wind turbine tower is provided with multiple support arms, and the wind turbine tower is connected to the air capture structure through the support arms.
[0023] This utility model can achieve the following beneficial effects:
[0024] In a first aspect, this utility model provides a wind power structure with an air capture system, including a wind turbine structure and an air capture structure. The air capture structure is a ring structure and is sleeved and connected above the transition section of the wind turbine structure. The air capture structure includes a core adsorption component, an integrated electrode, and an inner air collection chamber, which is connected to the wind turbine structure. The core adsorption component is arranged circumferentially along the outer wall of the inner air collection chamber, and an integrated electrode is arranged between the inner air collection chamber and the core adsorption component. The integrated electrode is arranged circumferentially on the side of the core adsorption component facing away from the inner air collection chamber. The integrated electrode is used to connect to an external power supply device.
[0025] In this invention, the air capture structure is annular, allowing for 360° circumferential air intake and effectively utilizing continuous natural winds from the sea as power, replacing energy-intensive mechanical ventilation equipment. Furthermore, the air capture structure is positioned above the transition section of the fan structure to prevent erosion from waves. The core adsorption component of the air capture structure captures carbon dioxide molecules from the air. The clean air, after adsorption and reduced carbon dioxide concentration, flows into the inner air collection chamber and is ultimately discharged from the top or bottom of the system. Integrated electrodes are used to efficiently and evenly distribute regenerative current throughout the core adsorption component, achieving direct Joule heating.
[0026] Compared with existing technologies, the wind power structure with an air capture system provided by this utility model achieves 360° annular air intake by setting the air capture structure as a ring structure and fitting it outside the wind turbine structure. The integrated electrode is used to efficiently and evenly distribute regenerative current to the entire core adsorption component, achieving direct Joule heating with low regeneration energy consumption. This application utilizes previously wasted wind power and achieves nearly 100% electrothermal conversion efficiency through direct resistance heating, far exceeding the energy utilization rate of traditional indirect heating methods. Furthermore, the clean air, after adsorption and reduction of carbon dioxide concentration, flows into the inner air collection chamber and is ultimately discharged from the top or bottom of the system. This approach effectively utilizes waste wind power, and the annular air capture structure meets the requirements of deep integration, resulting in space-saving performance.
[0027] In summary, this utility model at least alleviates the technical problems existing in the prior art, such as strong dependence on wind direction, low air intake efficiency due to aerodynamic interference, and maintenance difficulties caused by complex structure. Attached Figure Description
[0028] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.
[0029] Figure 1 A front view schematic diagram of a wind power structure with an air capture system provided for an embodiment of this utility model;
[0030] Figure 2 A top view of a wind power structure with an air capture system provided for an embodiment of this utility model;
[0031] Figure 3 This is a partial cross-sectional schematic diagram of the air capture structure of a wind power structure with an air capture system, provided as an embodiment of the present invention.
[0032] Icons: 1-Fan structure; 11-Fan tower; 111-Transition section; 112-Support arm; 12-Fan foundation; 2-Air capture structure; 21-Core adsorption component; 22-Integrated electrode; 23-Air pretreatment component; 24-Louvre; 25-Internal air collection chamber. Detailed Implementation
[0033] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0034] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.
[0035] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.
[0036] In the description of this utility model, it should be noted that the terms "upper," "lower," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the utility model product is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.
[0037] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.
[0038] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," and "connect" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0039] The following detailed description, in conjunction with the accompanying drawings, outlines some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.
[0040] Example 1
[0041] This embodiment provides a wind power structure with an air capture system, referring to... Figure 1 and Figure 3 The wind power structure with an air capture system includes a wind turbine structure 1 and an air capture structure 2. The air capture structure 2 is designed as a ring structure to capture natural wind from an external source in a 360° direction. The air capture structure 2 is mounted on top of the transition section 111 of the wind turbine structure 1. The air capture structure 2 includes a core adsorption component 21, an integrated electrode 22, and an inner air collection chamber 25. The inner air collection chamber 25 is connected to the wind turbine structure 1. The core adsorption component 21 is arranged circumferentially along the outer wall of the inner air collection chamber 25, and the integrated electrode 22 is arranged between the inner air collection chamber 25 and the core adsorption component 21. The integrated electrode 22 is arranged circumferentially on the side of the core adsorption component 21 facing away from the inner air collection chamber 25. The integrated electrode 22 is used to connect to an external power supply device.
[0042] This utility model embodiment at least alleviates the technical problems existing in the prior art, such as strong dependence on wind direction, low air intake efficiency due to aerodynamic interference, and difficult maintenance due to complex structure.
[0043] In this embodiment of the invention, the air capture structure 2 has an overall annular structure, allowing for 360° annular air intake and effectively utilizing the continuous natural wind at sea as a power source, replacing energy-intensive mechanical ventilation equipment. Furthermore, the air capture structure 2 is positioned above the transition section 111 of the fan structure 1 to prevent erosion from sea waves. The core adsorption component 21 of the air capture structure 2 captures carbon dioxide molecules in the air. The clean air, after adsorption and reduction of carbon dioxide concentration, flows into the inner air collection chamber 25 and is ultimately discharged from the top or bottom of the system. The integrated electrode 22 is used to efficiently and uniformly distribute regenerative current throughout the core adsorption component, achieving the effect of direct Joule heating.
[0044] Compared with existing technologies, the wind power structure with an air capture system provided in this embodiment of the invention achieves 360° annular air intake by setting the air capture structure 2 as a ring structure and fitting it outside the fan structure 1. The integrated electrode 22 is used to efficiently and evenly distribute regenerative current to the entire core adsorption component 21, achieving direct Joule heating. Furthermore, the regeneration energy consumption is low. This application utilizes previously wasted wind power and achieves nearly 100% electrothermal conversion efficiency through direct resistance heating, far exceeding the energy utilization rate of traditional indirect heating methods. The clean air, after adsorption and reduction of carbon dioxide concentration, flows into the inner air collection chamber 25 and is ultimately discharged from the top or bottom of the system. This processing method effectively utilizes waste wind power, and the annular air capture structure 2 meets the requirements of deep integration, resulting in space-saving performance.
[0045] In an optional implementation of this embodiment, refer to Figure 2 The core adsorption component 21 includes multiple core adsorption units, each of which is a fan-shaped protrusion structure. The multiple core adsorption units are connected in sequence to form a ring array surrounding the fan structure 1.
[0046] Specifically, multiple core adsorption cells are sequentially connected to form a ring-shaped structure, resulting in the air capture structure 2 presenting a horizontally arranged, ring-shaped array surrounding the wind turbine tower. Horizontal air inlets are positioned 360° along the outer periphery of the air capture structure 2, ensuring that the structure always utilizes its large windward surface regardless of the wind's direction. It passively and efficiently captures natural wind as the sole driving force for airflow. This makes it possible to completely eliminate the high-energy-consuming mechanical fan, a primary prerequisite for achieving revolutionary low-energy consumption in the system.
[0047] Furthermore, referring to Figure 2 and Figure 3 The core adsorbent monomer includes an outer shell and a modular cone, the modular cone being filled within the outer shell and comprising a conductive carbon dioxide adsorbent material.
[0048] Specifically: The modular cone can be a three-dimensional conductive network composite carbon dioxide adsorption material, which uses a carbonized biomass porous scaffold as a conductive framework, and a mesoporous silica carrier layer is coated on the framework, and amine functional group polymers are loaded in the pores of the carrier layer.
[0049] In an optional implementation of this embodiment, refer to Figure 3 Two sets of integrated electrodes 22 are respectively disposed on both sides of the core adsorption component 21. The integrated electrodes 22 are used for resistive heating of the core adsorption component 21.
[0050] Specifically, two sets of integrated electrodes 22 are respectively located on the inner and outer arc surfaces of the fan-shaped core adsorption component 21, i.e., flexible graphene electrode films are sandwiched on both sides of the core adsorption component 21. During use, current is introduced through titanium alloy or nickel-plated copper busbars arranged along the sidewall of the module. This achieves efficient and uniform distribution of the regeneration current to the entire core adsorption component 21, realizing direct Joule heating. Specifically, the carbon dioxide adsorbent material is designed as a three-dimensional network with excellent conductivity, and the electrode system is directly integrated with it. During the regeneration stage, the current flows directly through the core adsorption component 21 to generate Joule heat, achieving the effect of direct heating. Compared with existing technologies, it abandons all traditional and inefficient indirect heating methods, eliminating intermediate heat transfer media and related huge heat losses. This results in an electrothermal conversion efficiency close to 100%, extremely fast regeneration speed, and extremely low energy consumption.
[0051] In an optional implementation of this embodiment, refer to Figure 3 The inner air collection chamber 25 is equipped with a carbon dioxide collection microtube network, and the top and / or bottom of the inner air collection chamber 25 are provided with exhaust ports.
[0052] Specifically: The internal air collection chamber 25 can be an open space to collect purified air. An internal network of carbon dioxide collection microtubes directs the carbon dioxide gas to the exhaust ports at the top and bottom. This allows for the rapid extraction of high-purity carbon dioxide with minimal pressure drop during the regeneration phase, ensuring smooth exhaust and preventing back pressure buildup.
[0053] In an optional implementation of this embodiment, refer to Figure 3 The air capture structure 2 also includes an air pretreatment component 23, which is connected to the side of the core adsorption component 21 away from the fan structure 1 via a corresponding integrated electrode 22; the air pretreatment component 23 includes large-particle water-carrying silica gel and polymer mesh material.
[0054] Specifically, the air pretreatment component 23 contains large-particle hydrophobic silica gel and polymer mesh material, which has good air permeability. This is to prevent salt spray and water droplets from corroding internal components and clogging the micropores of the adsorbent, ensuring the long-term reliable operation of the system.
[0055] Furthermore, referring to Figure 3 The air capture structure 2 also includes multiple louvers 24, which are distributed at intervals along the outer edge of the air pretreatment member 23 to introduce natural wind into the air capture structure 2.
[0056] Specifically, multiple louvers 24 are equidistantly distributed along the circumferential side of the air pretreatment component 23 away from the core adsorption component 21, and the multiple louvers 24 can be connected to an external drive structure to achieve the closing of the corresponding louvers 24 by driving the drive structure.
[0057] Furthermore, referring to Figure 3 The louver 24 is designed with an airfoil blade structure, and the outer edge of the louver 24 is made of rubber.
[0058] Specifically: louvers 24 with vertically arranged airfoil blades cover the entire outer arc surface of the air-capturing structure 2 and are driven by a low-power motor. The outer edge of the louvers 24 is made of rubber, providing a seal when closed. This allows for precise control of the opening and closing of the airflow channel, switching between the adsorption and desorption states.
[0059] In an optional implementation of this embodiment, refer to Figure 1 and Figure 2 The wind turbine structure 1 includes a wind turbine tower 11 and a wind turbine foundation 12. The wind turbine tower 11 is located on the top of the wind turbine foundation 12. A transition section 111 is provided at one end of the wind turbine tower 11 facing the wind turbine foundation 12.
[0060] Specifically: The top of the wind turbine foundation 12 is provided with a wind turbine tower 11 in the vertical direction, and a transition section 111 is marked at the bottom of the wind turbine tower 11. In use, the air capture structure 2 is placed above the transition section 111 to prevent the air capture structure 2 from being eroded by seawater.
[0061] Furthermore, referring to Figure 2 The outer wall of the wind turbine tower 11 is provided with multiple support arms 112, and the wind turbine tower 11 is connected to the air capture structure 2 through the support arms 112.
[0062] Specifically: the wind turbine tower 11 is connected to the air collection structure 2 through the support arm 112, so that there is a gap between the wind turbine tower 11 and the air collection structure 2.
[0063] In this embodiment, the main steps during use are: adsorption, regeneration, and collection and recycling.
[0064] In this process, adsorption occurs as follows: An external system controller opens the air inlets of one or more core adsorption units. Driven by natural sea winds, ambient air is horizontally drawn in through the inlets and first purified by the air pretreatment unit 23. The purified air then enters and passes through the honeycomb channels of the core adsorption assembly 21, where carbon dioxide molecules are chemically captured by active sites on the material surface. The clean air, after adsorption and reduced carbon dioxide concentration, flows into the internal air collection chamber 25 and is ultimately discharged from the top or bottom of the system. This process continues until the adsorption capacity of the core adsorption assembly 21 reaches a preset saturation point.
[0065] Regeneration: Once the adsorbent in a core adsorption unit is saturated, the controller closes its inlet and outlet, creating a sealed space. The system applies curtailed wind power from offshore wind farms to the integrated electrode 22 integrated with the core adsorption component 21. Current flows through the integrated electrode 22 and the conductive core adsorption component 21, generating Joule heating, which causes the core adsorption component 21 to heat up uniformly and rapidly to the preset regeneration temperature (e.g., 80-120°C). Under the influence of heat, the chemical bonds between carbon dioxide molecules and the active sites of the adsorbent break, and carbon dioxide is desorbed and released from the surface of the core adsorption component 21 as a high-purity gas.
[0066] Collection and Circulation: During the regeneration step, the carbon dioxide collection network arranged in the core adsorption assembly 21 removes the high-concentration carbon dioxide gas released by desorption from the core adsorption unit and sends it to the subsequent compression, storage, or utilization system. After regeneration and collection are completed, the power supply to the integrated electrode 22 is stopped, and the core adsorption assembly 21 enters the passive cooling stage. Once its temperature drops to a suitable adsorption level, the inlet of the core adsorption unit can be reopened to start a new adsorption cycle.
[0067] Finally, it should be noted that the various embodiments in this specification are described in a progressive manner, with each embodiment focusing on the differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. The above embodiments in this specification are only used to illustrate the technical solutions of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features. These modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the various embodiments of this utility model.
Claims
1. A wind power structure with an air capture system, characterized in that, It includes a fan structure (1) and an air capture structure (2), wherein the air capture structure (2) is configured as a ring structure to capture natural wind from an external source in a 360° direction; The air capture structure (2) is sleeved and connected above the transition section (111) of the fan structure (1); The air capture structure (2) includes a core adsorption component (21), an integrated electrode (22), and an internal air collection chamber (25), which is connected to the fan structure (1). The inner air collection chamber (25) is provided with the core adsorption component (21) along the outer wall circumferentially, and the integrated electrode (22) is provided between the inner air collection chamber (25) and the core adsorption component (21). The integrated electrode (22) is provided circumferentially on the side of the core adsorption component (21) facing away from the inner air collection chamber (25). The integrated electrode (22) is used to connect to an external power supply device.
2. The wind power structure with an air capture system according to claim 1, characterized in that, The core adsorption component (21) includes multiple core adsorption monomers, each of which is a fan-shaped protrusion structure. The multiple core adsorption monomers are connected in sequence to form a ring array surrounding the fan structure (1).
3. The wind power structure with an air capture system according to claim 2, characterized in that, The core adsorbent monomer includes an outer shell and a modular cone, the modular cone being filled within the outer shell and comprising a conductive carbon dioxide adsorbent material.
4. The wind power structure with an air capture system according to claim 1, characterized in that, The two sets of integrated electrodes (22) are respectively disposed on both sides of the core adsorption component (21), and the integrated electrodes (22) are used for resistive heating of the core adsorption component (21).
5. The wind power structure with an air capture system according to claim 1, characterized in that, The inner air collection chamber (25) is provided with a carbon dioxide collection microtube network, and the top and / or bottom of the inner air collection chamber (25) are provided with exhaust ports.
6. The wind power structure with an air capture system according to claim 1, characterized in that, The air capture structure (2) also includes an air pretreatment component (23), which is connected to the side of the core adsorption component (21) away from the fan structure (1) via the corresponding integrated electrode (22); The air pretreatment component (23) includes large-particle water-carrying silica gel and polymer mesh material.
7. The wind power structure with an air capture system according to claim 6, characterized in that, The air capture structure (2) also includes multiple louvers (24), which are spaced apart along the outer edge of the air pretreatment component (23) to introduce natural wind into the air capture structure (2).
8. The wind power structure with an air capture system according to claim 7, characterized in that, The louver (24) is designed with an airfoil blade structure, and the outer edge of the louver (24) is made of rubber.
9. The wind power structure with an air capture system according to claim 1, characterized in that, The wind turbine structure (1) includes a wind turbine tower (11) and a wind turbine foundation (12), with the wind turbine tower (11) located on top of the wind turbine foundation (12). The wind turbine tower (11) has a transition section (111) at one end facing the wind turbine foundation (12).
10. The wind power structure with an air capture system according to claim 9, characterized in that, The outer wall of the wind turbine tower (11) is provided with multiple support arms (112), and the wind turbine tower (11) is connected to the air capture structure (2) through the support arms (112).