WO2015092486A1

WO2015092486A1 - In-tunnel vertical-axis wind turbine apparatus

Info

Publication number: WO2015092486A1
Application number: PCT/IB2013/061075
Authority: WO
Inventors: 陆日琪
Original assignee: 南宁马许科技有限公司; 许军
Priority date: 2013-12-18
Filing date: 2013-12-18
Publication date: 2015-06-25
Also published as: GB201511085D0; CN104870812A

Abstract

An in-tunnel vertical-axis wind turbine apparatus. With same, a traveling wind driven by a train or a vehicle traveling in a tunnel is utilized to drive a wind turbine into rotation, the rotating wind turbine is utilized for wind-powered electricity generation, and, the apparatus is fitted with a battery and is capable of providing electric power for demands such as tunnel lighting. The vertical-axis wind turbine apparatus is constituted by a vertical-axis wind turbine outer frame (1) and a vertical-axis wind turbine (2). The vertical-axis wind turbine (2) is sleeved within the vertical wind turbine outer frame (1). The vertical-axis wind turbine apparatus is embeddedly mounted into walls at two sides of a tunnel. Insofar as space occupied is reduced as much as possible, the effective windward area of the apparatus is increased and thus can be fully utilized for acquiring wind power.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention discloses a vertical axis wind wheel device and a method of using the same, and is particularly suitable for wind power generation in the field of tunnel engineering.

BACKGROUND OF THE INVENTION Due to the depletion of fossil energy, the increasing pressure on environmental protection and the urgent need for sustainable development, new energy power generation has become the focus of attention of all countries in the world. Among them, wind energy has the characteristics of good regeneration performance and no secondary pollution, which makes wind power generation attract attention. At present, the wind power generation device basically uses the natural wind to drive the wind wheel to rotate, and the artificial wind, such as the vehicle, especially the tail wind driven by the high-speed train, is rarely used; especially in the tunnel, because The tunnel space is constant. When a vehicle or train passes through a tunnel at a high speed, the wind force of the tail wind that can be brought about by it is enormous. According to relevant statistics, 33 cities in China have already planned rail transit construction. According to relevant parties, by 2015, the total mileage of China's subway operations will reach 3,000 kilometers, and in 2020, there will be 40 cities to build subways. With a mileage of 7,000 kilometers, plus the current mileage of China's highways and high-speed rail tunnels, the wind energy generated by the daily traffic of these tunnels is quite large. If the number of highways and high-speed rail tunnels in the world is also counted, if the wind energy generated by this field can be fully utilized to generate electricity, the global resource utilization rate and secondary usage rate will be greatly improved. At present, the wind turbines in wind power generators are generally large and cannot be applied to tunnels. Even if the scale of the wind turbines is reduced, it is bound to cause a decline in the air collection capacity. Therefore, there is a lack of a wind turbine device suitable for tunnel efficient mining.

SUMMARY OF THE INVENTION The present invention relates to a vertical axis wind wheel device and a method of using the same, which is mainly suitable for collecting wind energy in a tunnel, and using a driving wind driving device generated after a high speed driving of a vehicle (including a train and a subway, the same below), and converting the wind energy into For electric energy, make full use of the energy loss of the vehicle, and increase the secondary use rate of energy. Greatly improve energy efficiency and environmental efficiency. The invention is mainly installed on both sides of the tunnel to realize the driving wind after the vehicle is driven, and then to generate wind power. The vertical wind wheel device of the present invention, as shown in Figures 1 and 2, is composed of a vertical axis wind wheel outer frame (9) and a vertical wind wheel (10), and the vertical wind wheel is sleeved in the vertical axis wind wheel outer frame. The vertical axis wind wheel outer frame (9) is composed of a frame (91), a fixed bracket (92) and a center shaft (93), as shown in Fig. 3, the positional relationship between the fixed frame and the center axis of the fixed bracket; vertical wind wheel (2) ) consisting of a blade (21), a rotating rod (22) and a hollow shaft (23). As shown in Fig. 4, a vertical wind wheel has a plurality of blades, each of which is fixed by a rotating rod. Connected to the hollow shaft; as shown in Figures 5 and 6, each of the blades in the vertical rotor is fixed to one end of a rotating rod, and the other end of the rotating rod is fixedly connected to the hollow shaft; (23) is sleeved on the center shaft (13). As shown in Fig. 7, the hollow shaft is free to rotate about the center shaft and does not shift up and down. Installing a common horizontal axis rotating wind wheel in the tunnel will inevitably increase the horizontal occupied area of the device and affect the space inside the tunnel. However, the vertical axis wind wheel is particularly suitable for tunnel engineering. The vertical axis wind wheel greatly increases the windward area of the unit, and the available wind energy will be more sufficient. In order to solve the problem that the wind force is offset by the rotational force on both sides of the vertical axis, when the vertical axis wind wheel is installed, part of the area is embedded in the tunnel wall, as shown in Figure 10; and the central axis is perpendicular to the ground and the tunnel wall parallel. In this way, the wind wheel itself can be rotated in the wind to drive the device to generate electricity. Of course, if a part of the wall is not used, a method of sealing a part of the outer circumference of the vertical axis wind wheel, such as the semi-closed vertical axis wind wheel shown in Fig. 11, with a semi-closed protective cover 3 can also be used. The outer circumference of the part of the vertical axis wind wheel is sealed. This semi-closed protective cover vertical axis wind wheel is also suitable for other places. The device of the invention has simple structure and is convenient to install and use. After installing the device of the invention in any tunnel (including road, railway and subway), the vehicle can be fully utilized without hindering the driving vehicle or increasing energy consumption. The driving wind generated after the vehicle has been driven at a high speed generates electricity, which greatly increases the energy usage rate; and the generated electric energy can provide new uses, which greatly reduces energy consumption. In particular, in terms of providing power to traffic signs or electronic devices along the route, the device of the present invention can reduce the cost of laying ordinary electric wires and is a clean and environmentally friendly energy device. BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view of a vertical axis wind wheel. Figure 2 is a top view of the vertical axis wind wheel. Figure 3 is a perspective view of the outer frame of the vertical axis wind wheel. Figure 4 is a top view of the vertical rotor. Figure 5 is a schematic view showing the connection of the rotating rod and the hollow shaft structure. Figure 6 is a schematic view showing the connection of the vertical wind wheel components. Figure 7 is a schematic view showing the relationship between the rotating rod, the hollow shaft and the center shaft. Figure 8 is a plan view of a symmetrical wind blade. Figure 9 is a schematic diagram of wind blade analysis by wind. Figure 10 is a schematic view of the vertical axis wind wheel embedded in the wall. Figure 11 is a perspective view of a semi-closed vertical axis wind wheel.

1 is the vertical axis wind wheel frame, 2 is the vertical wind wheel;

11 is the frame, 12 is the fixed bracket, 13 is the middle shaft;

21 is a wind blade, 22 is a rotating rod, 23 is a hollow shaft; f is a wind force received by the wind blade, r is a rotational force, and t is a centripetal force;

3 is a semi-closed protective cover.

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS A vertical axis wind wheel is composed of a vertical axis wind wheel outer frame (1) and a vertical wind wheel (2) as shown in Figs. 1 and 2, and a vertical wind wheel is sleeved in a vertical axis wind wheel outer frame. The vertical axis wind wheel outer frame (1) is composed of a frame (11), a fixed bracket (12) and a middle shaft (13), as shown in Fig. 3, the fixed bracket fixed frame and the central axis are closed. The vertical wind wheel (2) consists of a wind blade (21), a rotating rod (22) and a hollow shaft (23). As shown in Fig. 4, a vertical wind wheel has a plurality of blades, each of which has a wind. The leaf plate is fixedly connected to the hollow shaft by a rotating rod; as shown in FIG. 5 and FIG. 6, each of the vertical blades in the vertical wind wheel is fixed at one end of one rotating rod, and the other end of the rotating rod is fixedly connected. On the hollow shaft; the hollow shaft (23) is sleeved on the central shaft (13). As shown in Fig. 7, the hollow shaft can freely rotate around the central shaft and does not shift up and down. As shown in Fig. 8, the plate surface of the blade (21) is fixedly connected with the rotating rod (22) to form an angle.

As shown in Fig. 9, the wind blade analysis diagram assumes that the direction of the wind is constant, and the wind blade receives a wind force f, which is decomposed into a centripetal force t along the direction of the rotating rod and a direction perpendicular to the rotating rod. The rotational force r, wherein the angle between the wind direction and the rotating rod is b; when the rotational force r is larger, the rotational speed of the wind wheel is faster, and since the rotating rod is changing at any time during the rotation of the wind wheel, that is, the wind direction The angle b with the rotating rod is in the process of constant change, so the factor that most directly affects the magnitude of the rotational force r is the wind force f received by the blade; when the magnitude and direction of the wind are constant, it affects the wind blade. The factor of the wind f is the amount of wind that the plate surface of the wind blade resists. Since the wind wheel is in the process of rotation, the air volume resisted by the wind blade changes, but when the surface of the wind blade forms an angle with the rotating rod a When it is easy to withstand some air volume, and the angle a is between 15 ° and 45 °, the air volume of all the blades in the wind wheel can resist the air volume, and the speed of the wind turbine is also faster. Fast; with When the angle a continues to increase, the air volume resisted by the surface of the vane in the wind wheel can also drive the wind wheel to rotate, but the effect is not very good. From the perspective of the top view, as shown in FIG. 4, the vane and the rotating rod in the vertical axis wind wheel are symmetric with each other with the hollow shaft as the axis, when the wind wheel is subjected to the wind blowing force in the same direction (reality In most cases, this is the case. Due to the symmetrical relationship between the blades, the rotational forces generated by the symmetrical blades tend to cancel each other, which greatly affects the wind-collecting ability of the vertical-axis wind turbines, and even the rotational force. When the mutual offset is 0, the vertical axis wind wheel becomes a useless device. In order to solve the problem of offsetting each other in use, a part of the vertical axis wind wheel is embedded in the tunnel wall according to use, as shown in Fig. 10, in the process of wind blowing in the same direction, due to the occlusion of the wall, there is a part The symmetrical leaf blades are not affected by the wind, and the blades exposed to the outside of the tunnel wall are blown by the wind, which in turn drives the wind wheel to rotate. This method eliminates the problem that the blades are offset by each other. . Of course, it can be solved in other ways. As shown in FIG. 11, the outer circumference of the vertical axis wind wheel is covered by a semi-closed protective cover 3. The vertical axis wind wheel with the semi-closed protective cover is not limited to Applicable within the tunnel.

Claims

Claim

A vertical axis wind wheel device, the vertical axis wind wheel device comprising a vertical axis wind wheel outer frame (1) and a vertical wind wheel (2), the vertical wind wheel (2) being sleeved on the vertical axis The outer ring outer frame (1); the vertical axis wind wheel outer frame (1) is composed of a frame (11), a fixed bracket (12) and a middle shaft (13); the vertical wind wheel (2) is composed of a fan blade a plate (21), a rotating rod (22) and a hollow shaft (23), one of the vertical wind wheels (2) has a plurality of vanes (21), and each of the vanes (21) consists of one The rotating rod (22) is fixedly connected to the hollow shaft (23); each of the vertical blades (21) of the vertical wind wheel (2) is fixed to one of the rotating rods (22) At one end, the other end of the rotating rod (22) is fixedly connected to the hollow shaft (23); the hollow shaft (23) is sleeved on the central shaft (13), and the hollow shaft (23) can be wound around The shaft (13) is freely rotatable and does not shift up and down; it is characterized in that the device is installed in a traffic tunnel, and a part of the vertical axis wind wheel device is embedded during installation In the wall, said central axis (13) perpendicular to the ground, parallel to the wall and the wall.

2. The vertical axis wind wheel device according to claim 1, wherein 50% to 70% of the vertical axis wind wheel device is embedded in the wall.

3. The vertical axis wind wheel device according to claim 1, wherein the vane (21) and the rotating rod (22) in the vertical wind wheel (2) are centered on the hollow shaft (23) The two are symmetric with each other.

The vertical axis wind wheel device according to claim 1, characterized in that a semi-closed protective cover (3) is provided around the outer periphery of the device.

5. The vertical axis wind wheel device according to claim 1, 2 and 3, characterized in that the wind blade (21) forms an angle a with the rotating rod (22), and the range is: 15° ≤ a ≤ 45°.