Wind energy and solar energy hybrid power generation device

Abstract

The invention belongs to the technical field of power generation systems, and particularly relates to a wind energy and solar energy hybrid power generation device. The device comprises a solar heat collection shed, an annular air outlet is formed in the shed top of the solar heat collection shed, an annular unpowered fan is installed at the annular air outlet, the annular unpowered fan comprises a connecting cylinder and a circular air ring rotationally arranged in the connecting cylinder, and a fan center shaft is coaxially and fixedly arranged in the circular air ring; the lower end of the connecting cylinder is fixedly connected to the annular air outlet to form an annular air outlet channel, a vertical generator is fixedly arranged on the ground in the solar heat collection shed, and an input shaft of the vertical generator is in transmission connection with a fan center shaft, so that rotation of the circular air ring can drive the input shaft of the vertical generator to rotate at the same time. When sunlight is sufficient, hot air flow is generated through solar energy to drive the draught fan; when the wind power is sufficient or the sunlight is insufficient, the wind power is directly utilized, and the maximum use of energy is ensured through the dual-energy utilization mode.

Description

Technical Field

[0001] The present invention belongs to the technical field of power generation systems, and more specifically relates to a wind-solar hybrid power generation device. Background Art

[0002] With the increasing environmental protection requirements and the continuous increase in the cost of traditional energy, the development and utilization of renewable energy has become the focus of global energy policy. Solar power generation, as a widely promoted renewable energy technology, includes photovoltaic power generation and solar thermal power generation. Solar thermal power generation technology (CSP) concentrates solar energy to heat fluids, generate steam to drive turbines to generate electricity. Although CSP can provide stable energy output and has storage capabilities, its construction cost is high and its efficiency is greatly limited by geographical location and climatic conditions.

[0003] Solar wind harvesting is a relatively new concept that uses the sun’s energy to heat the air, creating rising thermal currents that drive wind turbines to generate electricity. The advantage of this technology is that it can use solar thermal energy to enhance wind power generation, especially in areas with lower wind speeds.

[0004] Existing solar power generation systems cannot work on cloudy days or at night, while wind power generation systems have difficulty generating electricity effectively when there is no wind or insufficient wind. Summary of the invention

[0005] The present invention aims to solve the problem of low power generation efficiency of existing solar or wind power generation systems due to reliance on specific natural conditions, and provides a wind-solar hybrid power generation device with higher power generation efficiency.

[0006] In order to solve the above technical problems, the present invention adopts the following technical scheme: a wind-solar hybrid power generation device, comprising a solar collector shed arranged on the ground through a bracket, an air inlet is formed in the interval area between the outer peripheral edge of the solar collector shed and the ground, and an annular air outlet connecting the inner and outer areas of the solar collector shed is arranged at the roof position of the solar collector shed, and an annular unpowered fan is installed at the annular air outlet, the annular unpowered fan comprises a connecting cylinder arranged in a circular cylindrical shape and a circular wind ring rotatably arranged relative to the connecting cylinder, the circular wind ring is coaxially arranged at the upper end of the annular inner cavity of the connecting cylinder, a fan center axis coaxial with its rotation axis is fixedly arranged in the circular wind ring, the circular wind ring is connected to the fan center axis by spokes, the lower end of the connecting cylinder is fixedly connected to the annular air outlet to form an annular air outlet channel, a vertical generator is fixedly arranged on the ground in the solar collector shed, and the input shaft of the vertical generator is transmission-connected to the fan center axis, so that the rotation of the circular wind ring can drive the input shaft of the vertical generator to rotate at the same time.

[0007] A further preferred solution is that arc-shaped wind blades are provided on both the inner and outer sides of the circular wind ring.

[0008] A further preferred solution is that the annular air outlet has an air outlet cylinder body extending upward, and the lower end of the connecting cylinder and the upper end of the air outlet cylinder body are fixedly connected.

[0009] A further preferred solution is that the lower surface of the solar collector shed is in the shape of a truncated cone, and the annular air outlet is located at the top circumference of the truncated cone structure.

[0010] The working principle of the present invention is: using the solar collector shed to convert solar radiation energy into thermal energy, which is used to heat the ambient air below the solar collector shed. The heated air reduces its density due to thermal expansion, thereby generating an updraft. The annular non-powered fan itself does not require external energy to operate. Its circular wind ring has a plurality of fins (i.e., arc-shaped wind blades) made of lightweight and high-strength materials, which can start to rotate under the action of extremely small thermal airflow force. The central axis of the fan is arranged in the middle part of the circular wind ring, and the vertical generator is driven to generate electricity through the rotation of the central axis of the fan. Under conditions without thermal power airflow, such as at night or on cloudy days, the circular wind ring can also capture and utilize the natural wind in the environment to continue to operate. In this way, the device can continuously and stably provide electrical energy under a variety of climatic conditions, effectively enhancing energy utilization and system reliability.

[0011] The beneficial effects of the present invention are:

[0012] 1. Enhanced energy utilization: By combining the conversion of solar energy and wind energy, the present invention can make more comprehensive use of natural resources and increase the overall efficiency of the power generation system. When there is sufficient sunshine, the present invention uses solar energy to generate thermal airflow to drive the fan; when there is sufficient wind power or insufficient sunshine, the present invention directly uses wind power. This dual energy utilization method ensures the maximum use of energy.

[0013] 2. Improve system reliability: The present invention can continuously generate electricity under different weather conditions, reducing power generation interruptions caused by weather changes. This design improves the overall reliability and stability of the system, and is particularly suitable for areas with changeable climates.

[0014] 3. Reduce energy costs: Since the system can effectively integrate and utilize natural energy, it reduces dependence on traditional energy, thereby significantly reducing energy costs.

[0015] 4. Environmentally friendly: The present invention utilizes clean renewable energy, reduces the consumption of fossil fuels and related carbon emissions, and has less negative impact on the environment. This enables the power generation system to not only meet energy needs but also promote environmental protection.

[0016] 5. Strong adaptability: The design of this system takes into account different installation environments and climatic conditions, making it highly adaptable. Whether in sunny areas or windy areas, the invention can provide an effective energy solution. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the provided drawings without paying creative work.

[0018] Figure 1 It is a front view of the present invention.

[0019] Figure 2 It is a schematic diagram of the present invention.

[0020] Figure 3 for Figure 2 Cross-sectional view along the AA interface.

[0021] The parts in the figure are marked as follows: solar collector shed 1, ground 2, bracket 3, annular air outlet 4, air outlet cylinder 41, connecting cylinder 51, circular wind ring 52, fan central axis 53, spokes 54, vertical generator 6, generator foundation 7. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present invention are described clearly and completely below. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] See also Figure 1 , Figure 2 and Figure 3The present invention includes a solar heat collecting shed 1 arranged on the ground 2 through a bracket 3, an air inlet is formed in the interval area between the outer peripheral edge of the solar heat collecting shed 1 and the ground 2, and an annular air outlet 4 connecting the inner and outer areas of the solar heat collecting shed 1 is arranged at the top of the solar heat collecting shed 1, and the annular air outlet 4 is installed with an annular non-powered fan, and the annular non-powered fan includes a connecting cylinder 51 arranged in a circular cylindrical shape and a circular wind ring 52 arranged to rotate relative to the connecting cylinder 51, and the circular wind ring 52 is coaxially arranged on the connecting cylinder At the upper end of the annular inner cavity of 51, a fan center axis 53 coaxial with its rotation axis is fixedly arranged in the circular wind ring 52, the circular wind ring 52 and the fan center axis 53 are connected by spokes 54, the lower end of the connecting tube 51 is fixedly connected to the annular air outlet 4 to form an annular air outlet channel, and a vertical generator 6 is fixedly arranged on the ground 2 in the solar collector shed 1, and the input shaft of the vertical generator 6 is transmission-connected with the fan center axis 53, so that the rotation of the circular wind ring 52 can drive the input shaft of the vertical generator 6 to rotate at the same time.

[0024] Specifically, the solar collector shed 1 can be implemented with reference to the existing technology. The roof material of the solar collector shed can be selected from a light-transmitting plastic material or a light-transmitting glass material or a composite light-transmitting material composed of plastic and glass, and then supported and fixed by a rigid structure bracket 3. The main function of the solar collector shed 1 is to convert solar radiation energy into heat energy, which is used to heat the ambient air below the solar collector shed 1, thereby generating an updraft in the shed. The main structure of the unpowered fan is an existing mature technology, which does not require external energy to operate, and is currently mainly used in the field of house ventilation. The key point of the present invention is to optimize the wind ball of the traditional unpowered fan into a circular wind ring 52, and correspondingly optimize the cylindrical connecting tube into a connecting tube 51 arranged in a circular cylindrical shape, thereby increasing the area of ​​the wind inlet surface of the connecting tube 51 and the wind receiving area of ​​the circular wind ring 52; a fan center axis 53 is added in the circular wind ring 52, and the annular unpowered fan and the solar collector shed 1 are used together, and the fan center axis 53 of the annular unpowered fan drives the input shaft of the vertical generator 6 to rotate, thereby achieving a significant improvement in power generation efficiency with a simple mechanism. When there is sufficient sunshine, the present invention uses solar energy to generate hot air flow to drive the annular unpowered fan; when there is sufficient wind or insufficient sunshine, the present invention directly uses wind power; this dual energy utilization method ensures the maximum use of energy. In order to further improve the power generation efficiency, the inner and outer sides of the circular wind ring 52 are provided with arc-shaped wind blades (that is, both the inner and outer annular surfaces have arc-shaped wind blades).

[0025] In order to facilitate processing, manufacturing and assembly, the annular air outlet 4 has an air outlet cylinder body 41 extending upward, and the lower end of the connecting cylinder 51 is fixedly connected to the upper end of the air outlet cylinder body 41. The annular non-powered fan can usually be a complete set of equipment of "connecting cylinder 51 + circular wind ring 52 + fan center axis 53 + spokes 54". In the specific implementation, it only needs to be assembled corresponding to the annular air outlet 4 and the vertical generator 6. The vertical generator 6 can generally be installed on the generator foundation 7 in the heat collecting shed. As long as the fan center axis 53 can drive the input shaft of the vertical generator 6 to rotate, the two can be fixedly connected, can be keyed, or can be connected by other conventional transmission parts. The air outlet cylinder body 41 and the connecting cylinder 51 can be connected in the form of a flange with bolts, or can be connected in the form of a clamp.

[0026] In order to better guide the hot air flow generated in the solar heat collecting shed 1, the lower surface of the solar heat collecting shed 1 is preferably in the shape of a truncated cone, and the annular air outlet 4 is located at the top circumference of the truncated cone structure.

Claims

1. A wind-solar hybrid power generation device, comprising a solar heat collection shed (1) disposed on the ground (2) via a bracket (3), wherein an air inlet is formed in a spaced area between the outer edge of the solar heat collection shed (1) and the ground (2), and characterized in that: An annular air outlet (4) is arranged at the roof position of the solar heat collecting shed (1) and is connected to the inner and outer areas of the solar heat collecting shed (1). The annular air outlet (4) is installed with an annular non-powered fan. The annular non-powered fan comprises a connecting cylinder (51) arranged in an annular column shape and a circular wind ring (52) rotatably arranged relative to the connecting cylinder (51). The circular wind ring (52) is coaxially arranged at the upper end of the annular inner cavity of the connecting cylinder (51). A coaxial air ring (52) is fixedly arranged in the circular wind ring (52). The central axis (53) of the fan, the circular wind ring (52) and the central axis (53) of the fan are connected via spokes (54); the lower end of the connecting tube (51) is fixedly connected to the annular air outlet (4) to form an annular air outlet channel; a vertical generator (6) is fixedly arranged on the ground (2) in the solar heat collecting shed (1); the input shaft of the vertical generator (6) is transmission-connected to the central axis (53) of the fan, so that the rotation of the circular wind ring (52) can drive the input shaft of the vertical generator (6) to rotate simultaneously.

2. The wind-solar hybrid power generation device according to claim 1, characterized in that: The inner and outer sides of the circular wind ring (52) are both provided with arc-shaped wind blades.

3. The wind-solar hybrid power generation device according to claim 1, characterized in that: The annular air outlet (4) has an air outlet cylinder (41) extending upward, and the lower end of the connecting cylinder (51) and the upper end of the air outlet cylinder (41) are fixedly connected.

4. The wind-solar hybrid power generation device according to claim 1, 2 or 3, characterized in that: The lower surface of the solar heat collection shed (1) is in the shape of a truncated cone, and the annular air outlet (4) is located at the top circumference of the truncated cone structure.

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