Variable-form shipborne wind-assisted propulsion device and adjustment method and combination thereof

Abstract

The present application provides a variable-form shipborne wind-boosting device and its adjustment method and combination. The wind-boosting device includes a first base plate with at least two airfoil blades, a main shaft, and a generator. The main shaft is perpendicular to the first base plate, its lower end is fixedly connected to the generator shaft, and its upper end is located above the first base plate; the blade shaft is parallel to the main shaft; the upper surface of the first base plate is provided with a first sliding guide mechanism, and each airfoil blade can form a wind-boosting configuration by rotating around its blade shaft and / or sliding along the first sliding guide mechanism driven by its blade shaft; the main shaft and each airfoil blade are provided with at least one set of mutually cooperating connection mechanisms, and each airfoil blade can be fixedly connected to the main shaft through the connection mechanism to form a lift-type vertical axis power generation configuration. The variable-form shipborne wind-boosting device provided by the present application can flexibly switch between a wind-boosting configuration and a power generation configuration.

Description

Technical Field

[0001] The present application belongs to the technical field of ship propulsion devices, and specifically provides a variable-shape shipborne wind propulsion device applied to a ship, and an adjustment method and combination thereof. Background Art

[0002] Ships, especially large vessels like oil tankers and container ships used for ocean voyages, consume significant amounts of energy during their journeys. Technological upgrades to make ships more energy-efficient, thereby reducing fuel consumption and fuel costs, are of practical significance for improving navigational efficiency and reducing carbon emissions. Energy-saving retrofits for large ships involve not only optimizing and upgrading core components like the hull, propellers, and main engines, but also adding boosters to the deck and other areas to provide additional power, thereby reducing consumption of conventional fuel and oil.

[0003] Currently, there are many technical solutions for providing additional propulsion to ships. For example, patent CN219172649U provides a container ship with a wind-assisted propulsion device, and a wind-assisted propulsion rotor is provided on its second superstructure. The wind-assisted propulsion rotor can use the Magnus effect to provide propulsion for the container ship. For another example, patent CN115042947A provides a twisted airfoil sail, which improves the aerodynamic characteristics of the upper and lower ends of the airfoil sail by adding end plates to enhance the overall propulsion effect of the sail.

[0004] However, the above-mentioned propulsion method using wind-assisted propulsion rotors requires additional electricity consumption, and the method using a single sail cannot flexibly adjust to the complex and changeable wind field during navigation; in addition, the above-mentioned propulsion device has a single function and can only be idle when the ship is docked or anchored. Summary of the Invention

[0005] In order to solve the problems existing in the above-mentioned prior art, the present application provides a variable-form ship-borne wind-boosting device through an embodiment, which is arranged on a ship, including a first base plate and at least three airfoil blades vertically arranged above the first base plate, and also includes a main shaft and a generator arranged below the first base plate, the main shaft is perpendicular to the first base plate, its lower end is fixedly connected to the generator shaft, and its upper end is located above the first base plate; the blade shaft of the airfoil blade is parallel to the main shaft; the upper surface of the first base plate is provided with a circular first sliding guide mechanism coaxial with the main shaft, and each airfoil blade can rotate around its blade shaft and / or slide along the first sliding guide mechanism driven by its blade shaft to form a wind-boosting form; at least one group of mutually cooperating connecting mechanisms are provided on the main shaft and each of the airfoil blades, and each airfoil blade can be fixedly connected to the main shaft through the connecting mechanism to form a lift-type vertical axis power generation form.

[0006] Furthermore, each set of connecting mechanisms includes a plurality of foldable multi-link structures arranged on the main shaft, and a locking portion fixedly arranged on the aerofoil blades; the number of foldable multi-link structures contained in each set of connecting mechanisms is consistent with the number of aerofoil blades, and when each aerofoil blade has at least one locking portion arranged thereon and fixedly connected to the foldable multi-link structure, each of the aerofoil blades forms a lift-type vertical axis power generation form.

[0007] Optionally, the foldable multi-link structure includes an upper slider, a lower slider, an upper link and a lower link; the upper slider and the lower slider are slidably connected to the main shaft along the same sliding path, the first end of the upper link is hinged to the upper slider, the first end of the lower link is hinged to the lower slider, the second end of the upper link is hinged to the second end of the lower link, and can be connected to the locking part through the hinge part of the upper link and the lower link.

[0008] Optionally, the first connecting rod and the second connecting rod are hinged via a hinge shaft, and the locking portion is provided with a through hole for the hinge shaft to pass through.

[0009] Preferably, when the airfoil blades are in the lift-type vertical-axis power generation configuration, the airfoil blades are evenly distributed around the main axis.

[0010] Preferably, the variable-form shipborne wind-boosting device also includes a first top plate parallel to the first bottom plate, the first top plate is arranged above each of the airfoil blades and is fixedly connected to the main shaft; the lower surface of the first top plate is provided with a second sliding guide mechanism, the second sliding guide mechanism is coaxial with the first sliding guide mechanism and has the same radius.

[0011] The present application further provides, through an embodiment, a method for adjusting a variable-form shipborne wind-assisted propulsion device, which is used to adjust the aforementioned variable-form shipborne wind-assisted propulsion device. The adjustment method comprises the following steps:

[0012] When the vessel is in a moored state, adjusting each airfoil blade of the variable-shape shipborne wind thruster to a lift-type vertical-axis power generation configuration;

[0013] When the vessel is in a sailing state, each airfoil blade of the variable-shape shipborne wind-powered propulsion device is adjusted to a wind-powered propulsion state.

[0014] Furthermore, the wind-assist form includes a first wind-assist form and a second wind-assist form; when the airfoil blades are in the first wind-assist form, the lines connecting the leading edges and trailing edges of the airfoil blades are parallel to each other; when the airfoil blades are in the second wind-assist form, the lines connecting the leading edges and trailing edges of the airfoil blades are not parallel to each other, the angle between the leading edge directions of any two adjacent airfoil blades is less than 90°, and the minimum distance between any two adjacent airfoil blades is less than 1 / 10 of their chord length.

[0015] Furthermore, adjusting each wing blade of the variable-form shipborne wind-assisting device to a wind-assisting form includes the following steps: when the angle between the absolute wind direction and the heading of the ship is less than 25°, adjusting each wing blade to a first wind-assisting form, and making the line connecting its leading edge and trailing edge form an angle greater than 85° with the absolute wind direction, wherein the absolute wind direction is the wind direction in the geodetic coordinate system; when the angle between the absolute wind direction and the heading of the ship is between 25° and 120°, adjusting each wing blade to a second wind-assisting form.

[0016] Preferably, adjusting each airfoil blade of the variable-shape shipborne wind-boosting device to a wind-boosting configuration further comprises the following steps:

[0017] When the angle between the absolute wind direction and the heading of the vessel is greater than 120°, each airfoil blade is adjusted to the first wind-assisted propulsion configuration, and a line connecting its leading edge and trailing edge forms an angle less than 5° with the absolute wind direction.

[0018] Preferably, the number of the airfoil blades is three, and the three airfoil blades form a second wind-assisting form in the following manner: the three airfoil blades are arranged in sequence along the incoming wind direction, and the angles of attack of the three airfoil blades increase in sequence, wherein the angle of attack of each airfoil blade is the angle between the leading edge thereof and the mirror vector of the resistance vector it receives.

[0019] Preferably, the three airfoil blades form a second wind-assisted propulsion configuration as follows: the attack angle α of the middle airfoil blade ranges from 18° to 40°, and the angle between the orientations of the two airfoil blades on both sides and the orientation of the middle airfoil blade is 5° to 15°.

[0020] Preferably, when the ratio of the absolute wind speed to the ship speed is greater than 10: if the windward angle β≤90°, then when the three airfoil blades form the second wind-assist form, the angle of attack α of the middle airfoil blade ranges from 24° to 26°, wherein the windward angle β is the angle between the heading of the ship and the mirror vector of the resultant wind speed; if the windward angle β>90°, then when the three airfoil blades form the second wind-assist form, the angle of attack α of the middle airfoil blade ranges from 37° to 39°.

[0021] The present application further provides a variable-form shipborne wind-boosting device combination through an embodiment, and the combination includes the three aforementioned variable-form shipborne wind-boosting devices.

[0022] Preferably, the combination further comprises a second bottom plate rotatably connected to the vessel, and the three variable-form shipborne wind-powered thrusters are non-collinearly arranged on the second bottom plate.

[0023] The present application further provides, through an embodiment, a method for adjusting a variable-form shipborne wind-boosting device assembly, for adjusting the aforementioned variable-form shipborne wind-boosting device assembly. The method comprises the following steps:

[0024] When the vessel is in a moored state, the wing blades of the three variable-form shipborne wind-boosting devices are adjusted to a lift-type vertical-axis power generation form, or the wing blades of any two variable-form shipborne wind-boosting devices are adjusted to a second wind-boosting form, and the wing blades of another variable-form shipborne wind-boosting device are adjusted to a lift-type vertical-axis power generation form; when the vessel is in a sailing state, the wing blades of the three variable-form shipborne wind-boosting devices are adjusted to the wind-boosting form.

[0025] Preferably, the two variable-form shipborne wind-assisting devices adjusted to the second wind-assisting form have a second wind-assisting form that is mirror-symmetrical with respect to the incoming wind direction.

[0026] Preferably, the wind channel formed by the two variable-form shipborne wind-assisting devices adjusted to the second wind-assisting form gradually expands along the wind direction.

[0027] The variable-form shipborne wind-boosting device provided in the present application can flexibly switch between a lift-type vertical-axis power generation form and a wind-boosting form through the mutual cooperation of multiple airfoil blades, a sliding guide mechanism, and a connecting mechanism, thereby effectively providing propulsion when the ship is sailing and realizing lift-type power generation when moored, significantly broadening the application scenarios of the equipment and effectively improving the efficiency of equipment use. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] Figure 1 This is a schematic diagram of the three-dimensional structure of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0029] Figure 2 A top view of a variable-shape shipborne wind-powered propulsion device according to an embodiment of the present application;

[0030] Figure 3 A side view of a variable-shape shipborne wind-powered propulsion device according to an embodiment of the present application;

[0031] Figure 4 for Figure 3 Enlarged schematic diagram of circle A in the middle;

[0032] Figure 5 This is a schematic diagram of the installation of a variable-form shipborne wind-powered propulsion device according to an embodiment of the present application;

[0033] Figure 6 This is a schematic diagram of the installation of a variable-form shipborne wind-powered propulsion device according to an embodiment of the present application;

[0034] Figure 7 This is a schematic diagram of the three-dimensional structure of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0035] Figure 8 for Figure 7 Enlarged schematic diagram of the middle circle B;

[0036] Figure 9 A top view of a variable-shape shipborne wind-powered propulsion device according to an embodiment of the present application;

[0037] Figure 10 A schematic structural diagram of an airfoil blade provided according to an embodiment of the present application;

[0038] Figure 11 A top view of an airfoil blade provided according to an embodiment of the present application;

[0039] Figure 12 A flowchart of a method for adjusting a variable-form shipborne wind-powered propulsion device according to some embodiments of the present application;

[0040] Figure 13a This is a schematic diagram of a variable-form shipborne wind-assisted propulsion device provided in an embodiment of the present application in a first wind-assisted propulsion form;

[0041] Figure 13b This is a schematic diagram of a variable-form shipborne wind-assisted propulsion device provided in an embodiment of the present application in a second wind-assisted propulsion form;

[0042] Figure 13c This is a schematic diagram of a variable-form shipborne wind-assisted propulsion device provided in an embodiment of the present application in a first wind-assisted propulsion form;

[0043] Figure 13d This is a schematic diagram of a variable-form shipborne wind-assisted propulsion device provided in an embodiment of the present application in a first wind-assisted propulsion form;

[0044] Figure 14 is a schematic diagram of force analysis of an airfoil blade in an embodiment of the present application;

[0045] Figure 15 A vortex cloud diagram of a variable-form shipborne wind-powered propulsion device according to an embodiment of the present application;

[0046] Figure 16 Schematic diagram of the relationship between thrust, angle of attack, and windward angle of a variable-form shipborne wind-assisted propulsion device provided according to an embodiment of the present application;

[0047] Figure 17 A vortex cloud diagram of a variable-form shipborne wind-powered propulsion device according to an embodiment of the present application;

[0048] Figure 18 This is a schematic diagram of the layout of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0049] Figure 19 This is a schematic diagram of the layout of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0050] Figure 20 This is a schematic diagram of the layout of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0051] Figure 21 A top view of a combination of a variable-shape shipborne wind-powered propulsion device according to an embodiment of the present application;

[0052] Figure 22 A vortex cloud diagram of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0053] Figure 23 This is a flow field velocity distribution diagram of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0054] Figure 24 A top view of a combination of a variable-shape shipborne wind-powered propulsion device according to an embodiment of the present application;

[0055] Figure 25 A vortex cloud diagram of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0056] Figure 26 This is a flow field velocity distribution diagram of a combination of a variable-form shipborne wind-powered propulsion device provided according to an embodiment of the present application;

[0057] Figure 27 Schematic diagram of flow velocity comparison of different opening modes for a combination of a variable-form shipborne wind-boosting device provided according to an embodiment of the present application.

[0058] Numbers in the figure

[0059] Airfoil blade 1, leading edge 11, trailing edge 12, airfoil 13, blade shaft 14, main shaft 2, bearing 21, bearing frame 22, connecting mechanism 3, upper slider 311, lower slider 312, upper connecting rod 321, lower connecting rod 322, hinge shaft 33, locking part 34, limit pin 35, generator 41, generator shaft 42, coupling 41, frame 44, first bottom plate 51, first slide groove 511, first top plate 6, base 7, variable-form shipborne wind booster device 800, deck 9. DETAILED DESCRIPTION

[0060] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0061] In addition, various components in the drawings are enlarged or reduced in size for ease of understanding, but this is not intended to limit the scope of protection of this application.

[0062] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inner", "outer" and the like indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or are the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present application. In addition, in the description of the present application, in order to distinguish different units, words such as first and second are used in this specification, but these are not limited by the order of manufacture, nor can they be understood as indicating or implying relative importance. Their names may be different in the detailed description and claims of the present application.

[0063] The vocabulary in this specification is used to illustrate the embodiments of the present application, but is not intended to limit the present application. It should also be noted that, unless otherwise clearly specified and limited, the terms "disposed", "connected", and "connected" 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, a direct connection, an indirect connection through an intermediate medium, or a communication between the two components. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0064] An embodiment of the present application provides a variable-form shipborne wind-boosting device 800, which is arranged on a vessel and can be converted between a wind-boosting form and a lift-type vertical-axis power generation form according to the navigation or mooring state of the vessel.

[0065] Figures 1 to 3The three-dimensional view, top view and side view of the variable-form shipborne wind-powered booster 800 in the lift-type vertical axis power generation mode are shown respectively. Figure 4 for Figure 3 The one in circle A, Figure 5 、 Figure 6 Schematic diagrams showing the variable-form shipborne wind-powered propulsion device 800 installed on the deck 9 are shown respectively; Figures 7 to 9 The three-dimensional view and the top view of the variable-form shipborne wind-assisted propulsion device 800 in the wind-assisted propulsion form are shown respectively. Figure 8 right Figure 7 Circle B in the figure is magnified. Figure 10 、 Figure 11 The three-dimensional structure and airfoil profile of the airfoil blade 1 used in the variable-form wind-boosting device are shown respectively. The structure and working principle of the variable-form shipborne wind-boosting device 800 are described in detail below in conjunction with the above-mentioned figures.

[0066] like Figures 1 to 11 As shown, the variable-form shipborne wind-boosting device 800 includes a first bottom plate 51 , three airfoil blades 1 vertically arranged above the first bottom plate 51 , a main shaft 2 and a generator 41 arranged below the first bottom plate 51 .

[0067] It should be noted that Figures 1 to 11 The variable-shape shipborne wind-boosting device 800 with three airfoil blades 1 shown is only an optional embodiment of the present application. In other embodiments, the number of airfoil blades 1 may be two, four, five, six or more.

[0068] In some optional embodiments, such as Figure 5 As shown, the first bottom plate 51 can be set in the form of being directly embedded in the deck 9, and a space for accommodating the generator 41 is provided inside the ship below it. The generator 41 is fixedly provided below the first bottom plate 51 by a frame 44, and its generator shaft 42 faces upward. The main shaft 2 is perpendicular to the first bottom plate 51, and its lower end is fixedly connected to the generator shaft 42 by a coupling 43 (obviously, the connection between the main shaft 2 and the generator shaft 42 can be either above the first bottom plate 51 or below the first bottom plate 51), and its upper end is located above the first bottom plate 51 and can rotate around its axis relative to the first bottom plate 51.

[0069] In some other optional embodiments, Figure 1 and Figure 6As shown, a separate base 7 is provided on the deck 9, and a bearing 21 and a bearing frame 22 for supporting the bearing 21 are provided in the base 7. The inner wall of the base 7 is fixedly connected to the outer ring of the bearing 21, and the first bottom plate 51 is fixedly connected to the inner ring of the bearing 21 and can rotate relative to the base 7. The generator 41 is provided below the deck 9, or can also be fixedly provided in the base 7, and its generator shaft 42 is also upward and fixedly connected to the lower end of the main shaft 2.

[0070] The structure of the airfoil blade 1 of the variable-shape shipborne wind booster device 800 is shown in FIG. Figure 10 and Figure 11 The airfoil blade 1 has an airfoil-shaped profile, that is, the curvature of its leading edge 11 is relatively small, and the curvature of its trailing edge 12 is relatively large. The leading edge 11 and the trailing edge 12 transition continuously to form two airfoil surfaces 13 connected between the leading edge 11 and the trailing edge 12. Preferably, the shapes of the airfoil blades 1 are the same, that is, the profiles and heights of the airfoil blades 1 are the same.

[0071] In some preferred embodiments, Figure 10 、 Figure 11 As shown, each airfoil blade 1 has a mirror-symmetrical airfoil profile, that is, its two airfoils 13 are mirror-symmetrical. Obviously, at this time, the line connecting its leading edge 11 and trailing edge 12 coincides with the airfoil centerline, and its direction is Figure 11 The direction of the dashed arrow.

[0072] Furthermore, as shown in the figure, in an embodiment of the present application, each airfoil blade 1 is provided with a blade shaft 14 extending along its height direction, and both ends of the blade shaft 14 respectively protrude from the two end surfaces of the main body of the airfoil blade 1, and the blade shaft 14 of each airfoil blade 1 is parallel to the main axis 2.

[0073] A first sliding guide mechanism having an annular shape and being coaxial with the main shaft 2 is provided on the upper surface of the first base plate 51. Figures 1 to 9 In the embodiment shown, the first sliding guide mechanism is a first slide groove 511, and the lower end of the blade shaft 14 of each airfoil blade 1 is located in the first slide groove 511, and it can slide along the first slide groove 511. At the same time, as mentioned above, each airfoil blade 1 can also rotate around its respective blade shaft 14, so that each airfoil blade 1 can form a "revolution + rotation" position and attitude change mode of movement around the main axis 2 superimposed on the rotation around its respective blade shaft 14.

[0074] It should be noted that the way in which the above-mentioned blade shaft 14 slides in the first slide groove 511 can also be replaced by other sliding methods. For example, a raised slide rail can be set, and a shape-matching slide groove can be set at the bottom end of each airfoil blade 1, which can also realize the revolution of the blade shaft 14 relative to the main shaft 2 (obviously, when adopting this embodiment, it is necessary to make the main body of the airfoil blade 1 rotatably connected to its blade shaft 14). In addition, other methods known to those skilled in the art can also be used as the first sliding guide mechanism to realize the revolution of each airfoil blade 1 relative to the main shaft 2.

[0075] [Lift-type vertical axis power generation form]

[0076] As shown in the figure, the main shaft 2 and each airfoil blade 1 of the variable-form shipborne wind booster device 800 are provided with mutually cooperating connecting mechanisms 3 for achieving fixed connection between each airfoil blade 1 and the main shaft 2.

[0077] The number of connecting mechanisms 3 can be determined according to the size of the airfoil blade 1. For example, in some embodiments, a group of connecting mechanisms 3 can be provided to ensure that each airfoil blade 1 can be fixedly connected to the main shaft 2. In other embodiments, if the airfoil blade 1 is high or large in size, the number of connecting mechanisms 3 can be increased to strengthen the strength of the fixed connection. For example, Figures 1 to 9 In the illustrated embodiment, three sets of connection mechanisms 3 are provided at the upper, middle, and lower regions of each airfoil blade 1. When each airfoil blade 1 is fixedly connected to the main shaft 2 via the connection mechanisms 3, the variable-form shipborne wind-boosting device 800 is in a lift-type vertical-axis power generation configuration. In this configuration, the variable-form shipborne wind-boosting device 800 can function as a lift-type vertical-axis wind turbine. When in a wind field, each airfoil blade 1 can drive the main shaft 2 to rotate under the action of the lift effect, thereby converting wind energy into electrical energy.

[0078] In some embodiments, as shown in the figure, each set of connecting mechanisms 3 includes a plurality of foldable multi-link structures arranged on the main shaft 2, and a locking portion 34 fixedly arranged on the airfoil blade 1, wherein the number of foldable multi-link structures included in each set of connecting mechanisms 3 is consistent with the number of airfoil blades 1 of the variable-form ship-borne wind boosting device 800.

[0079] As shown in the figure, in some embodiments, the foldable multi-link structure includes an upper slider 311, a lower slider 312, an upper connecting rod 321 and a lower connecting rod 322, and a sliding groove is arranged axially on the surface of the main shaft 2 for the slider to slide up and down, wherein the upper slider 311 and the lower slider 312 are slidingly connected to the main shaft 2 along the same sliding path, and the first end of the upper connecting rod 321 is hinged to the upper slider 311, the first end of the lower connecting rod 322 is hinged to the lower slider 312, and the second end of the upper connecting rod 321 is hinged to the second end of the lower connecting rod 322 through the hinge shaft 33.

[0080] Furthermore, as shown in the figure, a through hole for the hinge shaft 33 to pass through is opened on the locking portion 34 fixedly connected to the airfoil blade 1. When it is necessary to fix an airfoil blade 1 to the main shaft 2, the airfoil blade 1 is first slid to a position aligned with a foldable multi-link structure on the main shaft 2 through the first sliding groove 511, and then the upper slider 311 and / or the lower slider 312 are moved to extend the upper connecting rod 321 and the lower connecting rod 322 toward the airfoil blade 1, and the hinged parts of the two are aligned with the locking portion 34. The through-holes are coaxially connected, and then the hinge shaft 33 is simultaneously inserted through the through-hole in the locking portion 34 and the hinged portion of the upper and lower connecting rods 321 and 322. At this point, the shape and position of the foldable multi-link structure are constrained and limited by the axial sliding path on the main shaft 2 and the locking portion 34 on the airfoil blade 1. The upper and lower connecting rods 321 and 322 no longer rotate, and the upper and lower sliders 311 and 312 no longer slide, thereby forming a fixed connection between the airfoil blade 1 and the main shaft 2. After the other airfoil blades 1 are fixedly connected to the main shaft 2 in the same manner, the variable-form shipborne wind booster device 800 is in the lift-type vertical axis power generation state.

[0081] As mentioned above, the connecting mechanism 3 can be one group, or two groups or more groups. Obviously, in the embodiment of the present application, the various foldable multi-link structures in each group of connecting mechanisms 3 do not all need to be in a state of fixedly connecting the airfoil blade 1 and the main shaft 2. That is, as long as each airfoil blade 1 has at least one locking portion 34 provided thereon and fixedly connected to the foldable multi-link structure, each airfoil blade 1 can form a lift-type vertical axis power generation form.

[0082] In order to optimize the power generation efficiency, in some preferred embodiments, when each airfoil blade 1 is in the lift-type vertical axis power generation configuration, each airfoil blade 1 is evenly distributed around the main axis 2, for example, Figures 1 to 3 In the embodiment shown, when the three airfoil blades 1 are in the lift-type vertical-axis power generation configuration, the angle between them is 120°.

[0083] In some preferred embodiments, Figure 1 and Figure 3As shown, the variable-form shipborne wind-boosting device 800 further includes a first top plate 6, which is placed above each airfoil blade 1 and fixedly connected to the main shaft 2. The provision of the first top plate 6 can further enhance the structural strength of the variable-form shipborne wind-boosting device 800. Accordingly, a second sliding guide mechanism is provided on the lower surface of the first top plate 6 to guide the sliding of the upper end of the blade shaft 14 of each airfoil blade 1 relative to the main shaft 2. Obviously, the second sliding guide mechanism also needs to be configured as a circle having the same radius as the first sliding guide mechanism and needs to remain coaxial with the first sliding guide mechanism. Its specific form can also adopt various feasible forms such as a slide groove, a slide rail, etc.

[0084] The lift-type vertical axis power generation mode can be set up when the ship is moored in the port or anchored at sea. At this time, the ship does not need to be propelled. Therefore, by using the changes in the shape of each airfoil blade to generate electricity, it is possible to power various electrical equipment on the ship and effectively reduce the energy consumption of the ship.

[0085] Due to the instability of wind power generation, in some preferred embodiments, the variable-form shipborne wind-powered propulsion device 800 also includes a power storage device such as a battery for storing the electrical energy generated by the generator.

[0086] [Wind-assisted mode]

[0087] like Figures 7 to 9 As shown, when the locking portion 34 of each airfoil blade 1 is released from the fixed connection with the main shaft 2, it can rotate around its respective blade shaft 14 (rotate on its own), and / or slide along the first sliding guide mechanism (revolve) driven by its respective blade shaft 14, thereby forming a wind-assisted propulsion form. At this time, the main shaft 2 is no longer driven by the individual airfoil blades 1 to rotate.

[0088] The wind-assisted propulsion mode can be set when the ship is in a sailing state. At this time, it is necessary to give priority to using wind energy to propel the ship in order to achieve the purpose of reducing energy consumption.

[0089] Furthermore, in some preferred embodiments, the variable-form shipborne wind-boosting device 800 also includes a limiter for limiting the position and direction of each airfoil blade 1 after each airfoil blade 1 is formed into a desired wind-boosting form through sliding and rotating.

[0090] Various embodiments known to those skilled in the art can be used to limit the position of the airfoil blade adjusted to the desired shape. For example, in some preferred embodiments, the following can be used: Figure 7As shown, positioning holes can be provided at predetermined positions on the first base plate 51 according to the preset wind-assistance mode, and the limiting pins 35 can be respectively disposed in the positioning holes and in the first slide groove 511 to limit the airfoil surface of the airfoil blade 1 and the blade shaft 14. In addition, a circular limiting groove coaxial with the main shaft 2 can be further provided on the first base plate 51. The limiting pin can be fixed at any position on the circumference of the limiting groove through an interference fit, thereby more flexibly achieving adjustment and limiting of the wind-assistance mode.

[0091] [Adjustment method]

[0092] Due to the variability of wind direction and wind force during navigation, there is no fixed wind-assisting form that is suitable for all wind conditions. Instead, the airfoil blade shape needs to be precisely adjusted according to various situations during navigation. Therefore, the present application also provides an adjustment method for the variable-form shipborne wind-assisting device. The following, combined with the accompanying drawings, describes in detail how the adjustment method adjusts each airfoil blade accordingly based on different wind field conditions.

[0093] Figure 12 This is a flow chart of a method for adjusting a variable-form shipborne wind-assisted propulsion device according to some embodiments of the present application, which is used to adjust the aforementioned variable-form shipborne wind-assisted propulsion device, such as Figure 12 As shown, the adjustment method includes the following steps:

[0094] S100, when the vessel is in a moored state, adjusting each airfoil blade of the variable-shape shipborne wind thruster to a lift-type vertical-axis power generation configuration;

[0095] S200, when the vessel is in a sailing state, adjusting each airfoil blade of the variable-shape shipborne wind-powered propulsion device to a wind-powered propulsion state.

[0096] The specific implementation of step S100 of adjusting the airfoil blade 1 to a lift-type vertical axis has been described in detail above and will not be repeated here.

[0097] In some preferred embodiments, step S200 further includes the following steps: when the angle between the absolute wind direction and the heading of the vessel is less than 25°, adjusting each airfoil blade to a first wind-assisting form, and making a line connecting its leading edge and trailing edge form an angle greater than 85° with the absolute wind direction, wherein the absolute wind direction is the wind direction in the geodetic coordinate system; when the angle between the absolute wind direction and the heading of the vessel is between 25° and 120°, adjusting each airfoil blade to a second wind-assisting form.

[0098] In some preferred embodiments, step S200 also includes the following steps: when the angle between the absolute wind direction and the heading of the vessel is greater than 120°, adjusting each airfoil blade to a first wind-assisting form, and making the line connecting its leading edge and trailing edge form an angle less than 5° with the absolute wind direction.

[0099] Figures 13a to 13d Taking three airfoil blades 1 as examples, the corresponding wind-assistance forms constructed by the above steps are shown when the ship's heading and the absolute wind direction (i.e., the wind direction measured in the geodetic coordinate system) are in different angle ranges.

[0100] 1) When the angle between the absolute wind direction and the vessel's heading is less than 25° (the figure schematically shows the absolute wind direction that is the same as the heading), the wind basically blows from the stern to the bow, so it is relatively consistent with the vessel's heading. In this case, you can Figure 13a As shown, the direction of each airfoil blade 1 is adjusted so that the line connecting the leading edge and the trailing edge thereof are parallel to each other (in the embodiment of the present application, the configuration in which the line connecting the leading edge and the trailing edge of each airfoil blade is parallel to each other is referred to as the first wind-assist configuration), and the line connecting the leading edge and the trailing edge of each airfoil blade 1 is made to form an angle greater than 85° with the absolute wind direction. At this time, each airfoil blade 1 is in a configuration that is perpendicular or nearly perpendicular to the incoming wind direction, so the incoming wind that is consistent with the heading of the ship can be efficiently utilized to assist the ship.

[0101] 2) When the angle between the absolute wind direction and the heading of the ship is between 25° and 120° (the figure schematically shows the absolute wind direction perpendicular to the heading), the wind blows basically from port to starboard or from starboard to port. In this case, the airfoil blades 1 can be adjusted as follows: Figure 13b The second wind-assist form shown, specifically, when each airfoil blade 1 is in the second wind-assist form, the lines connecting the leading edge and the trailing edge of each airfoil blade 1 are not parallel to each other, the angle between the leading edge directions of any two adjacent airfoil blades 1 is less than 90°, and the minimum distance between any two adjacent airfoil blades is less than 1 / 10 of their chord length.

[0102] At this time, the airfoil blades 1 are connected to each other head to tail and the leading edges are offset in sequence, forming a larger bow sail as a whole. The pressure difference formed when the incoming wind flows on both sides of the bow sail forms a lift toward the bow, thereby achieving propulsion for the ship.

[0103] 3) When the angle between the absolute wind direction and the vessel's heading exceeds 120° (the figure schematically shows the absolute wind direction opposite to the heading), the wind blows basically from the bow to the stern. In this case, you can Figure 13cAs shown in FIG13d, each airfoil blade 1 is adjusted to the first wind-assisting state, and the line connecting its leading edge and trailing edge forms an angle less than 5° with the absolute wind direction. Obviously, the purpose of adjusting the direction of the airfoil blade 1 at this time is not to provide thrust for the vessel, but to prevent the incoming wind from blowing towards the airfoil blade 1 and causing additional resistance to the vessel.

[0104] Figures 13a to 13c In the embodiment shown, the number of the airfoil blades 1 is three. Obviously, when the number of the airfoil blades 1 is two, or increases to four, five or more, the adjustment method of each airfoil blade 1 is similar to that of the three airfoil blades 1, and will not be repeated here.

[0105] Figure 14 In a specific embodiment, the force applied to the three airfoil blades 1 in the second wind-assisted propulsion configuration is shown in FIG. 1 , when the wind is coming from the side (i.e., the angle between the absolute wind direction and the vessel's heading is between 25° and 120°). In the figure, the positive direction of the Y axis represents the vessel's heading, and the wind blows from port to starboard along the X axis, i.e., the absolute wind direction is the positive direction of the X axis. V w is the absolute wind speed. At the same time, since the ship is sailing, a relative wind direction will be generated along the negative direction of the Y axis. The relative wind speed is consistent with the ship speed Vs. The two work together to produce the combined wind speed V in the figure. r , and acts on the airfoil blade 1, so that the total resistance of the three airfoil blades 1 is F d Under this action, the total lift force on the three airfoil blades 1 is F l , which in turn generates thrust in the direction of the vessel. d1 , F d2 , F d3 They are the resistance generated by each of the three airfoils, F l1 , F l2 , F l3 The lift generated by each of the three airfoils is shown in the figure. The angle of attack α of each airfoil blade 1 is the direction of its leading edge and the drag vector F it receives. d The angle between the mirror vectors of Figure 14 As shown, in this case, in order to efficiently utilize the cross wind to propel the ship, the three airfoil blades 1 can be adjusted as follows to form a second wind-assisting form: the three airfoil blades 1 are arranged in sequence along the incoming wind direction, and the attack angles α of the three airfoil blades 1 increase in sequence.

[0106] In some preferred embodiments, the three airfoil blades form a second wind-assisted propulsion configuration as follows: the attack angle α of the middle airfoil blade ranges from 18° to 40°, and the angle between the orientations of the two airfoil blades on both sides and the orientation of the middle airfoil blade is 5° to 15°. Figure 15In a specific embodiment, a vorticity cloud diagram of the wind field is shown when the attack angle α of the middle airfoil blade is 18°. As shown in the figure, by optimally setting the angle of the airfoil blade, the flow state of the incoming wind on the airfoil blade can be significantly optimized, thereby effectively utilizing the incoming wind to propel the ship.

[0107] Furthermore, when the ratio of the absolute wind speed to the ship speed is greater than 10, the thrust generated by the airfoil blades received by the ship in its heading direction can be expressed as follows:

[0108] F t =F l sinβ-F d cosβ,

[0109] Where β is the windward angle, such as Figure 14 As shown, the windward angle β is the direction of the ship (i.e. the positive direction of the Y axis) and the wind speed V r The angle between the mirror vectors of .

[0110] For the above-mentioned situation where the absolute wind speed is much greater than the navigation speed, the angle of attack of the airfoil blades can be further optimized. Specifically, in some preferred embodiments, if the windward angle β≤90°, then when the three airfoil blades form the second wind-assist form, the angle of attack α of the middle airfoil blade is in the range of 24°~26°; if the windward angle β>90, then when the three airfoil blades form the second wind-assist form, the angle of attack α of the middle airfoil blade is in the range of 37°~39°.

[0111] Figure 16 The figure shows the change in thrust acting on the vessel when the three airfoil blades form the second wind-assisting configuration and the middle airfoil blade adopts different combinations of angle of attack and angle of attack. The curves from bottom to top represent the curves of thrust changing with angle of attack when the angle of attack β is from 60° to 120°.

[0112] pass Figure 16 It can be found that at different windward angles, the thrust changes in different trends with the change of the angle of attack. Among them, when the windward angle β≤90°, the thrust first increases and then decreases with the increase of the angle of attack. The angle of attack that produces a larger thrust is about 25°. At this time, the lift generated by the airfoil is mainly used as the thrust; as the windward angle continues to increase, when the windward angle β>90°, the thrust gradually increases with the increase of the angle of attack. The angle of attack that produces a larger thrust is about 38°. At this time, in addition to the lift generated by the airfoil, the resistance on the airfoil also generates thrust.

[0113] Figure 17 The vorticity cloud diagram is shown when the wind angle β>90° and the attack angle of the middle airfoil blade is set to 38°. Figure 17It can be seen that by reasonably setting the angle of attack of each airfoil blade, the thrust effect on the ship can be significantly improved.

[0114] The variable-form shipborne wind-powered propulsion device provided in the present application can be used alone, and in some preferred embodiments, they can also be combined to produce better effects.

[0115] Figure 18 The illustrated embodiment provides a combination of three variable-form shipborne wind-boosting devices 800 arranged linearly. Obviously, each variable-form shipborne wind-boosting device 800 in the combination can be adjusted according to the wind field conditions during navigation and mooring.

[0116] In some preferred embodiments, combinations may be formed in a non-linear arrangement to produce a better linkage effect, for example, Figure 19 、 Figure 20 In the illustrated embodiment, three variable-shape shipborne wind-boosting devices 800 are arranged in a triangular shape on the second bottom plate 52, wherein the second bottom plate 52 can rotate relative to the ship.

[0117] In this embodiment, the three variable-shaped shipborne wind-powered propulsion devices 800 can be as follows: Figure 19 As shown, it can be set to wind-assisted mode synchronously, or as Figure 20 As shown, it is synchronously set to a lift-type vertical axis power generation configuration.

[0118] In addition, combined with the rotatable characteristics of the second bottom plate, a new power generation form can be further formed. Figures 21 to 26 The following examples are provided for illustration.

[0119] Figure 21 A combination of three variable-form shipborne wind-boosting devices 800-1, 800-2, and 800-3 is shown, wherein the variable-form shipborne wind-boosting device 800-1 and the variable-form shipborne wind-boosting device 800-2 on the left are both set to the second wind-boosting form, and preferably, the forms of the two are mirror-symmetrical relative to the incoming wind direction, and the variable-form shipborne wind-boosting device 800-3 on the right is set to the lift-type vertical-axis power generation form.

[0120] Figure 21 The combined form shown can be applied to the scenario of generating electricity when the ship is at anchor. When the ship is at anchor, if the wind speed is low, the three variable-form shipborne wind-boosting devices may not be able to generate electricity efficiently. At this time, two of the devices can be set to a second wind-boosting form that is mirror-symmetrical and faces the incoming wind, and can be used to achieve efficient flow convergence, thereby greatly improving the power generation capacity of the third variable-form shipborne wind-boosting device.

[0121] Figure 22 and Figure 23 The vorticity cloud diagram and wind speed distribution of the wind field in this embodiment are shown respectively. Figure 22 and Figure 23 It can be seen that the wind field has been significantly improved after the flow is concentrated by the two wind boosters.

[0122] Figures 24 to 26 Another embodiment of using two variable-shaped ship-borne wind thrusters to perform flow convergence is shown. Figure 21 The difference between the embodiments shown is that, in the second wind-boosting form formed by the two variable-form shipborne wind-boosting devices 800-1 and 800-2 of the former, each airfoil blade 1 is arranged in sequence to form a form in which the opening is large at the front and small at the back, and accordingly, the wind duct formed between the two gradually shrinks, i.e., a front-opening form; in the second wind-boosting form formed by the two variable-form shipborne wind-boosting devices 800-1 and 800-2 of the latter, each airfoil blade 1 is arranged in sequence to form a form in which the opening is small at the front and large at the back, and accordingly, the wind duct formed between the two gradually expands, i.e., a rear-opening form, through Figures 22 to 26 , and through Figure 27 From the comparison of wind speed changes under the two opening methods, it can be seen that although the front opening method is similar to the generally used form of the guide cover with a diameter from large to small, its maximum wind speed is located far behind the wind duct. In order to obtain a better focusing effect, the distance between the equipment needs to be significantly increased; in the rear opening method, the maximum wind speed appears inside the wind duct, and its maximum value is greater than the front opening method. The calculation results show that the maximum wind speed can be increased by more than three times compared with when no focusing channel is set, which reflects a good focusing ability, can greatly improve the power generation efficiency, and help shorten the layout distance.

[0123] The present application further provides, through an embodiment, a method for adjusting a variable-form shipborne wind-boosting device assembly, for adjusting the aforementioned variable-form shipborne wind-boosting device assembly. The method comprises the following steps:

[0124] When the vessel is in a moored state, the wing blades of the three variable-form shipborne wind-boosting devices are adjusted to a lift-type vertical-axis power generation form, or the wing blades of any two variable-form shipborne wind-boosting devices are adjusted to a second wind-boosting form, and the wing blades of another variable-form shipborne wind-boosting device are adjusted to a lift-type vertical-axis power generation form; when the vessel is in a sailing state, the wing blades of the three variable-form shipborne wind-boosting devices are adjusted to the wind-boosting form.

[0125] The above is a detailed introduction to the specific implementation methods of the present application. For those skilled in the art, several improvements and modifications can be made to the present application without departing from the principles of the present application. These improvements and modifications also fall within the scope of protection of the claims of the present application.

Claims

1. A method for adjusting a variable-form shipborne wind-assisted propulsion device assembly, for adjusting the variable-form shipborne wind-assisted propulsion device assembly, characterized in that: The variable-shape shipborne wind-boosting device assembly comprises three variable-shape shipborne wind-boosting devices disposed on a vessel, and a second base plate rotatably connected to the vessel, wherein the three variable-shape shipborne wind-boosting devices are non-collinearly disposed on the second base plate; The variable-shape shipborne wind-powered propulsion device includes a first base plate and at least two airfoil blades vertically arranged above the first base plate, and also includes a main shaft and a generator arranged below the first base plate. The main shaft is perpendicular to the first base plate, its lower end is fixedly connected to the generator shaft, and its upper end is located above the first base plate; The blade rotation axis of the airfoil blade is parallel to the main axis; The upper surface of the first base plate is provided with a first annular sliding guide mechanism coaxial with the main axis, and each airfoil blade can form a wind-assisting form by rotating around its blade rotation axis and / or sliding along the first sliding guide mechanism driven by its blade rotation axis; the wind-assisting form includes a first wind-assisting form and a second wind-assisting form; when each airfoil blade is in the first wind-assisting form, the line connecting the leading edge and the trailing edge of each airfoil blade is parallel to each other; when each airfoil blade is in the second wind-assisting form, the line connecting the leading edge and the trailing edge of each airfoil blade is not parallel to each other, the angle between the leading edge directions of any two adjacent airfoil blades is less than 90°, and the minimum distance between any two adjacent airfoil blades is less than 1 / 10 of their chord length; The main shaft and each of the airfoil blades are provided with at least one set of mutually cooperating connection mechanisms, and each airfoil blade can be fixedly connected to the main shaft through the connection mechanism to form a lift-type vertical axis power generation configuration; The variable-shape shipborne wind-assisted propulsion device combination is adjusted by the following steps: When the vessel is in a moored state, adjusting the airfoil blades of the three variable-form shipborne wind-thrusting devices to a lift-type vertical-axis power generation configuration, or adjusting the airfoil blades of any two variable-form shipborne wind-thrusting devices to a second wind-thrusting configuration, and adjusting the airfoil blades of the other variable-form shipborne wind-thrusting device to a lift-type vertical-axis power generation configuration; When the vessel is in a sailing state, each airfoil blade of the three variable-shape shipborne wind-powered propulsion devices is adjusted to a wind-powered propulsion shape.

2. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 1, characterized in that: Each set of connection mechanisms includes a plurality of foldable multi-link structures arranged on the main shaft, and a locking portion fixedly arranged on the airfoil blade; The number of foldable multi-link structures included in each set of connecting mechanisms is consistent with the number of the airfoil blades, and when each airfoil blade has at least one locking portion provided thereon and fixedly connected to the foldable multi-link structure, each of the airfoil blades forms a lift-type vertical axis power generation form.

3. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 2, characterized in that: The foldable multi-link structure includes an upper slider, a lower slider, an upper connecting rod and a lower connecting rod; The upper slider and the lower slider are slidably connected to the main shaft along the same sliding path, the first end of the upper connecting rod is hinged to the upper slider, the first end of the lower connecting rod is hinged to the lower slider, the second end of the upper connecting rod is hinged to the second end of the lower connecting rod, and can be connected to the locking part through the hinge part of the upper connecting rod and the lower connecting rod.

4. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 3, characterized in that: The upper connecting rod and the lower connecting rod are hinged via a hinge shaft, and a through hole for the hinge shaft to pass through is formed on the locking portion.

5. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to any one of claims 1 to 4, characterized in that: When the airfoil blades are in the lift-type vertical-axis power generation configuration, the airfoil blades are evenly distributed around the main axis.

6. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 1, characterized in that: It also includes a first top plate parallel to the first bottom plate, the first top plate is arranged above each of the airfoil blades and is fixedly connected to the main shaft; A second sliding guide mechanism is provided on the lower surface of the first top plate. The second sliding guide mechanism is coaxial with the first sliding guide mechanism and has the same radius as the first sliding guide mechanism.

7. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 1, characterized in that: Adjusting each airfoil blade of the variable-shape shipborne wind-assisted propulsion device to a wind-assisted propulsion configuration includes the following steps: When the angle between the absolute wind direction and the heading of the vessel is less than 25 degrees, adjusting each airfoil blade to a first wind-assisted propulsion configuration so that a line connecting the leading edge and the trailing edge thereof forms an angle greater than 85 degrees with the absolute wind direction, wherein the absolute wind direction is the wind direction in the geodetic coordinate system; When the angle between the absolute wind direction and the heading of the vessel is between 25° and 120°, each airfoil blade is adjusted to the second wind-assisted propulsion configuration.

8. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 7, characterized in that: Adjusting each airfoil blade of the variable-shape shipborne wind-boosting device to a wind-boosting configuration further includes the following steps: When the angle between the absolute wind direction and the heading of the vessel is greater than 120°, each airfoil blade is adjusted to the first wind-assisted propulsion configuration, and a line connecting its leading edge and trailing edge forms an angle less than 5° with the absolute wind direction.

9. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 7, characterized in that: The number of the airfoil blades is three, and the three airfoil blades form a second wind-assisted propulsion configuration in the following manner: The three airfoil blades are arranged in sequence along the incoming wind direction, and the angles of attack of the three airfoil blades increase in sequence, wherein the angle of attack of each airfoil blade is the angle between the leading edge thereof and the mirror vector of the resistance vector it encounters.

10. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 9, characterized in that: The three airfoil blades form a second wind-assisted configuration as follows: Angle of attack of the middle airfoil blade The range is 18°~40°, and the angle between the direction of the two airfoil blades on both sides and the direction of the middle airfoil blade is: 5°~15°.

11. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 9, characterized in that: When the ratio of absolute wind speed to ship speed is greater than 10: If the windward angle ≤90°, when the three airfoil blades form the second wind-assisted propulsion configuration, the attack angle of the middle airfoil blade is The range is 24°~26°, among which the windward angle is the angle between the heading of the vessel and the mirror image vector of the resultant wind speed; If the windward angle >90°, when the three airfoil blades form the second wind-assisted propulsion configuration, the attack angle of the middle airfoil blade is The range is 37°~39°.

12. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 1, characterized in that: The two variable-form shipborne wind-assisting devices are adjusted to a second wind-assisting form, and the second wind-assisting form formed is mirror-symmetrical relative to the incoming wind direction.

13. The method for adjusting the variable-form shipborne wind-assisted propulsion device assembly according to claim 12, characterized in that: The wind channel formed by the two variable-form shipborne wind-assisting devices adjusted to the second wind-assisting form gradually expands along the wind direction.

Images