Lift force type wind power boosting-power generation dual-mode device

Abstract

The utility model provides a lift force type wind power boosting-power generation dual-mode device. The lift force type wind power boosting-power generation dual-mode device comprises a base, a main shaft perpendicular to the base and a plurality of wing-shaped blades. A turntable is arranged between the base and the spindle and fixedly connected to the lower part of the spindle; a generator is arranged in the base; in the wind power generation mode, the wing-shaped blades rotate under the wind action to drive the main shaft and the rotating disc to rotate so as to drive the generator rotating shaft to rotate to generate power. In the wind power boosting mode, the attack angle is adjusted through rotation of the rotating disc and rotation of all the wing-shaped blades around the axis, and boosting force is generated on the ship. The wind energy utilization efficiency and comprehensive utilization effect of the ship are improved, the ship can better adapt to different wind directions, and the mode switching operation is simple and convenient.

Description

Technical Field

[0001] The utility model relates to the technical field of new energy utilization, in particular to a lift-type wind-assisted propulsion and power generation dual-mode device. Background Art

[0002] As a clean, safe, renewable green energy, wind energy has been applied to the shipbuilding industry very early. At present, there are two main technologies for utilizing wind energy on ships: wind propulsion and wind power generation. However, most of the devices can only be used for wind propulsion or wind power generation alone, and few can achieve both modes at the same time. In addition, the existing wind propulsion-power generation dual-mode devices are mostly set as drum-shaped wind propulsion-power generation devices based on the Magnus effect as the aerodynamic principle. The drum-shaped wind propulsion has certain requirements on the wind direction. The best assisting wind direction is crosswind. In addition, the sail blades need to be disassembled and replaced when switching between the two modes, which is complicated to operate.

[0003] Therefore, there is a need for a wind-boosting-power-generation dual-mode device that integrates wind power generation and wind-boosting and can better adapt to different wind directions and has easy mode switching operation. Utility Model Content

[0004] The purpose of the present application is to provide a lift-type wind-assisting and power generation dual-mode device, which can constitute both a lift-type wind-assisting device and a vertical-axis wind turbine power generation device, thereby solving the problem that existing devices cannot adapt to different wind directions and the mode switching operation is cumbersome, and enabling ships to effectively utilize wind energy under different navigation conditions.

[0005] The embodiments of the present application can be implemented through the following technical solutions:

[0006] A lift-type wind boost-power generation dual-mode device, comprising a base, a main shaft perpendicular to the base, and a plurality of airfoil blades, wherein the rotation axes of the plurality of airfoil blades are parallel to the main shaft; a turntable is provided between the base and the main shaft, and the turntable is fixedly connected to the lower part of the main shaft; a generator is provided in the base, and the generator shaft is fixedly connected to the turntable;

[0007] In the wind power generation mode, each airfoil blade is fixedly connected to the main shaft and is evenly distributed around the main shaft. At this time, the lift generated by the airfoil in the wind field will cause the airfoil blade to rotate, driving the main shaft and the turntable to rotate, so as to drive the generator shaft to rotate to generate electricity;

[0008] In the wind-assist mode, each airfoil blade rotates to a specified position relative to the main shaft, and the relative position of each airfoil blade and the turntable is fixed. The angle of attack is adjusted by the rotation of the turntable and the rotation of each airfoil blade around the axis. At this time, the airfoil will generate lift, that is, thrust, along the direction of the ship's travel in the wind field, which helps the ship.

[0009] Furthermore, the lift-type wind-assisted propulsion-power generation dual-mode device also includes a supporting member, one end of which is arranged on the main shaft, and the other end of which can be connected to the airfoil blade.

[0010] Furthermore, the supporting member includes a multi-link mechanism disposed on the main shaft and a fixer disposed on the airfoil blade and cooperating with the multi-link mechanism, and is used to fix the main shaft and the airfoil blade in the wind power generation mode.

[0011] Furthermore, a limit pin is provided at the lower end of the airfoil blade, and an annular groove cooperating with the limit pin is provided on the turntable. In the wind power generation mode, the airfoil blade can rotate in the annular groove.

[0012] Furthermore, a limiter is arranged in the annular slide groove for locking the position of the airfoil blade in the wind-assist mode.

[0013] Further, the number of the airfoil blades is at least 3;

[0014] Furthermore, a bearing assembly is provided inside the base, and the turntable is rotatably connected to the base via the bearing assembly.

[0015] Furthermore, the lift-type wind-assisted propulsion-power generation dual-mode device also includes a top plate, which is located on the upper part of the airfoil blade and is rotatably connected thereto.

[0016] Furthermore, the lift-type wind-assist-power-generation dual-mode device also includes a control system, which includes a wind speed and direction monitoring module and a drive module. The wind speed and direction monitoring module is used to monitor real-time wind direction and wind speed. The drive module includes a power component and a transmission component, which are used to drive each airfoil blade to rotate to a suitable angle of attack position in the wind-assist mode.

[0017] Furthermore, the lift-type wind-assisted propulsion-power generation dual-mode device also includes an energy storage system for storing the electrical energy generated by the generator.

[0018] The embodiment of the present application provides a lift-type wind-assisted propulsion-power generation dual-mode device which has at least the following beneficial effects:

[0019] 1. The present application provides a lift-type wind-assisting-power-generation dual-mode device, which can select different working modes according to different wind directions and different ship operation modes. It can constitute both a lift-type wind-assisting device and a vertical-axis wind turbine power generation device. It can perform wind-assisting when the ship is sailing and use wind power to generate electricity when the ship is stopped, thereby improving the ship's utilization efficiency and comprehensive utilization effect of wind energy.

[0020] 2. When in wind-assisted propulsion mode, the present application forms a lift-type multi-body wing-shaped sail, which can better adapt to different wind directions, improve wind energy utilization, and save energy;

[0021] 3. This application does not require the sail to be disassembled and replaced according to different working modes. Through the design of the supporting structure, the switching of different working modes can be easily achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 A schematic diagram of the overall structure of a wind power generation mode provided according to an embodiment of the present application;

[0023] Figure 2 for Figure 1 Schematic diagram of the enlarged circle part;

[0024] Figure 3 A front view and a cross-sectional view of a wind power generation mode provided according to an embodiment of the present application;

[0025] Figure 4 A top view of a wind power generation mode provided according to an embodiment of the present application;

[0026] Figure 5 This is a schematic diagram of the overall structure of the wind-assisted propulsion mode provided according to an embodiment of the present application;

[0027] Figure 6 A top view of a wind-assisted propulsion mode provided according to an embodiment of the present application;

[0028] Figure 7 A schematic diagram of the working principle of a wind-assisted propulsion airfoil blade according to an embodiment of the present application;

[0029] Figure 8 A schematic diagram of the positions of airfoil blades in different wind directions in a wind-assisted propulsion mode according to an embodiment of the present application;

[0030] Fig. 9 A vorticity cloud diagram of the wind-assisted propulsion mode at the port wind direction provided according to an embodiment of the present application;

[0031] Fig.10 A lift-drag time history curve in the wind-assist mode at port wind direction provided by an embodiment of the present application;

[0032] Numbers in the figure

[0033] 1-top plate; 2-airfoil blade; 21-first airfoil blade; 22-second airfoil blade; 23-third airfoil blade; 3-main shaft; 4-turntable; 5-bearing assembly; 6-base; 7-support member; DETAILED DESCRIPTION

[0034] Hereinafter, the present application will be further described based on preferred embodiments with reference to the accompanying drawings.

[0035] In addition, various components in the drawings are enlarged or reduced in size for ease of understanding, but this practice is not intended to limit the scope of protection of the present application.

[0036] Words importing the singular also include the plural and vice versa.

[0037] In the description of the embodiments of the present application, it should be noted that if the terms "upper", "lower", "inside", "outside", etc. indicate an orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship in which the products of the embodiments of the present application are usually placed when in use, it is only for the convenience of describing the present application and simplifying the description, and does 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, the words first, second, etc. 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, and their names may be different in the detailed description and claims of the present application.

[0038] 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 connection between the two elements. For those skilled in the art, the specific meanings of the above terms in this application can be specifically understood.

[0039] like Figure 1-Figure 6 As shown in combination, the utility model provides a lift-type wind boost-power generation dual-mode device, comprising a top plate 1, a plurality of airfoil blades 2, a main shaft 3, a base 6 and a generator assembly, wherein the main shaft 3 is vertically arranged on the base 6, and a turntable 4 is provided between the main shaft 3 and the base 6, wherein the turntable 4 is fixedly connected to the lower end of the main shaft 3, and a bearing assembly 5 is provided inside the base 6, wherein the turntable 4 is rotatably connected to the base 6 via the bearing assembly 5, and the turntable 4 is connected to the generator shaft to drive the generator to generate electricity.

[0040] Furthermore, the rotation axes of the plurality of airfoil blades 2 are parallel to the main shaft (3), and are rotatably arranged on the turntable 4 along the circumferential direction of the main shaft 3. Specifically, by arranging a limit pin at the bottom of each sail and correspondingly arranging an annular groove matching the limit pin on the turntable 4, when in the wind power generation mode, the airfoil blades 2 can rotate in the annular groove of the turntable 4.

[0041] Furthermore, a limiter is provided in the slide groove and cooperates with the limit pin at the bottom of the sail. When in the wind-assist mode, each airfoil blade is rotated to a specified position along the annular slide groove and is fixed by the limiter. At this time, the airfoil blade 2 cannot move in the slide groove and can only rotate along its own rotation axis relative to the turntable 4.

[0042] Furthermore, the airfoil blades 2 and the main shaft 3 may be connected via a support member 7. Specifically, the support members 7 are evenly distributed horizontally on the main shaft 3 along the circumferential direction of the main shaft 3, and the number of the support members 7 is at least equal to the number of the airfoil blades 2. Specifically, Figure 2 As shown, the support member 7 includes a multi-link mechanism arranged on the main shaft 3 and a fixture arranged on the airfoil blade 2, wherein the multi-link mechanism includes a first slider, a second slider, a first connecting rod and a second connecting rod, the first slider and the second slider are slidably connected to the main shaft 3, the first end of the first connecting rod is hinged to the first slider, the first end of the second connecting rod is hinged to the second slider, the first connecting rod and the second connecting rod are hinged, and the hinge between the first connecting rod and the second connecting rod cooperates with the fixture on the airfoil blade 2. In the wind power generation mode, the multi-link mechanism is connected to the fixture to fix each airfoil blade 2 to the main shaft 3. At this time, the airfoil blades 2 are in a position evenly distributed in the circumferential direction of the main shaft 3. In the wind boost mode, the connection between the multi-link mechanism and the fixture is disconnected, so that each airfoil blade 2 can move relative to the main shaft 3; as shown in FIG. Figure 1 and Figure 5 In some preferred embodiments shown, a total of 3 groups of support members 7 are provided, the number of which is equal to the number of airfoil blades 2, and are placed respectively at the upper, middle and lower parts of the main shaft 3, which can further increase the connection stability between the airfoil blades 2 and the main shaft 3 in the wind power generation mode.

[0043] Specifically, the "airfoil" of the airfoil blade 2 refers to the wing profile having an aerodynamic shape when viewed in a cross section in the front-to-rear direction (i.e., from the leading edge to the trailing edge), and the aerodynamic airfoil shape facilitates air to pass through the wing sail more easily, such as Figure 4 and Figure 6 Each of the airfoil blades 2 shown is a symmetrical airfoil (i.e., a mirror-symmetrical structure about the midline of each airfoil). It should be noted that the airfoil structure of the present application is not limited to a symmetrical airfoil, and the airfoil shape can be defined according to the NACA standardized series, but is not limited thereto;

[0044] In some preferred embodiments, the number of the airfoil blades 2 is set to 3, such as Figure 6 The first airfoil blade 21, the second airfoil blade 22 and the third airfoil blade 23 are shown, and in the wind-assistance mode, a multi-body airfoil sail is formed; when facing different wind directions, the airfoil blades 2 can be driven to rotate as a whole and each airfoil blade can rotate around its own axis by rotating the turntable 4 to reach the optimal angle of attack position, such as Figure 7As shown, when encountering wind with a certain angle of attack, the rotating airfoil blade 2 is formed as a whole. Figure 7 The arc-shaped structure shown generates a lift F because a high-pressure area is generated on the windward side (concave side) and a low-pressure area is generated on the leeward side (convex side). At this time, the lift F can be decomposed to generate a larger thrust pointing in the direction of the ship's travel, achieving a better wind-assisted propulsion effect.

[0045] Optionally, the lift-type wind boost-power generation dual-mode device also includes a top plate 1, which is located on the upper part of the airfoil blade 2 and is rotatably connected to the airfoil blade 2; specifically, a slide block is arranged on the top of each airfoil blade 2, and a slide groove adapted to the slide block is arranged at the lower part of the top plate 1, so that each airfoil blade 2 can rotate in the slide groove, thereby enhancing the stability of the rotation of the airfoil blade 2.

[0046] Wind power generation working mode:

[0047] When the ship is moored at the dock, the device switches to wind power generation mode, such as Figure 1 As shown, each airfoil blade 2 rotates along the annular groove on the turntable 4 to a specified position, and the multi-link mechanism in the support member 7 is connected to the fixture on the airfoil blade 2. At this time, each airfoil blade 2 is evenly arranged around the circumference of the main shaft 3, and the position of each airfoil blade 2 and the main shaft 3 is relatively fixed, forming a lift-type vertical axis wind fan, that is, under the action of external wind force, the airfoil blade 2 generates lift due to the airfoil structure, so that the blade rotates, and the rotation of the blade drives the main shaft 3 and then drives the turntable 4 to rotate, and the turntable 4 is connected to the generator shaft, which further drives the generator to operate, and finally realizes the conversion of wind energy into electrical energy.

[0048] In some preferred embodiments, the device also includes an energy storage system that can store the electrical energy generated by the generator, which can effectively meet the power needs of onboard facilities and equipment and ensure the normal operation of the ship.

[0049] Wind-assisted working mode:

[0050] When the ship is running normally, the device switches to wind-assisted propulsion mode. Figure 5 As shown, first, the connection between the multi-link mechanism in the supporting member 7 and the fixer on the airfoil blade 2 is disconnected, and the airfoil blade 2 is rotated along the slide groove on the rotating disk 4 to a specified position and fixed by the upper limiter on the rotating disk 4. At this time, the airfoil blade 2 can only rotate relative to the rotating disk 4 along its own rotation axis to form a multi-body airfoil sail;

[0051] Figure 8A schematic diagram of the position of the airfoil blades facing different wind directions in the wind-assist working mode is shown. When the wind direction is mainly from the port side or the starboard side, each airfoil blade 2 rotates to the position shown in the figure, and a lift pointing to the bow can be generated at this time, thereby achieving a better wind-assist effect; when the wind direction is mainly from the bow, each airfoil blade 2 rotates to a leading edge facing the bow, and the wind resistance is relatively low at this time, and will not have a significant impact on the ship; when the wind direction is mainly from the stern, each airfoil blade 2 rotates to a trailing edge facing the port side or the starboard side, and a thrust pointing to the bow can be generated at this time, thereby achieving a better wind-assist effect.

[0052] Figure 9-10 The simulation calculation results are shown in the wind-assisted working mode when the wind direction is port wind. It can be seen that when the model form of this device is adopted, a larger lift-to-drag ratio can be generated.

[0053] In some preferred embodiments, the device also includes a control system, which includes a wind speed and direction monitoring module and a drive module. The wind speed and direction monitoring module is used to monitor real-time wind direction and wind speed. The drive module includes a power component and a transmission component, which are used to drive each airfoil blade 2 to rotate to a suitable angle of attack position in the wind assist mode.

[0054] 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 may 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 lift-type wind-assisted propulsion-power generation dual-mode device, comprising a base (6), a main shaft (3) perpendicular to the base, and a plurality of airfoil blades (2), characterized in that: The rotation axes of the plurality of airfoil blades (2) are parallel to the main axis (3); A turntable (4) is provided between the base (6) and the main shaft (3), and the turntable (4) is fixedly connected to the lower part of the main shaft (3); A generator is arranged in the base, and the generator shaft is fixedly connected to the rotating disk (4); In the wind power generation mode, each airfoil blade (2) is fixedly connected to the main shaft (3) and is evenly distributed in the circumferential direction around the main shaft (3). At this time, the lift generated by the airfoil in the wind field causes the airfoil blade (2) to rotate, driving the main shaft (3) and the rotating disk (4) to rotate, thereby driving the generator shaft to rotate to generate electricity; In the wind-assisted propulsion mode, each airfoil blade (2) rotates to a specified position relative to the main shaft (3), and the relative position of each airfoil blade (2) and the turntable (4) is fixed. The angle of attack is adjusted by the rotation of the turntable (4) and the rotation of each airfoil blade (2) around the axis. At this time, the airfoil will generate lift, that is, thrust, in the wind field along the direction of travel of the ship, thereby providing propulsion to the ship.

2. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: It also comprises a supporting member (7), one end of which is arranged on the main shaft (3) and the other end of which can be connected to the airfoil blade (2).

3. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 2, characterized in that: The support member (7) comprises a multi-link mechanism arranged on the main shaft and a fixer arranged on the airfoil blade (2) and matched with the multi-link mechanism, and is used to fix the main shaft (3) and the airfoil blade (2) in a wind power generation mode.

4. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: A limit pin is arranged at the lower end of the airfoil blade (2), and an annular sliding groove cooperating with the limit pin is arranged on the rotating disk (4). In the wind power generation mode, the airfoil blade (2) can rotate in the annular sliding groove.

5. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 4, characterized in that: A limiter is arranged in the annular slide groove, and is used to lock the position of the airfoil blade (2) in the wind-assisted propulsion mode.

6. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: The number of the airfoil blades (2) is at least 3.

7. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: A bearing assembly (5) is provided inside the base (6), and the turntable (4) is rotatably connected to the base (6) via the bearing assembly (5).

8. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: It also includes a top plate (1) which is located on the upper part of the airfoil blade (2) and is rotatably connected thereto.

9. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: It also includes a control system, which includes a wind speed and direction monitoring module and a drive module. The wind speed and direction monitoring module is used to monitor real-time wind direction and wind speed. The drive module includes a power component and a transmission component, which are used to drive each airfoil blade (2) to rotate to a suitable angle of attack position in the wind-assisted propulsion mode.

10. The lift-type wind-assisted propulsion-power generation dual-mode device according to claim 1, characterized in that: It also includes an energy storage system for storing the electrical energy generated by the generator.

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