Wind-solar complementary all-dimensional air duct power generation system

Abstract

The utility model relates to a wind-solar complementary all-dimensional air duct power generation system which comprises a support, a solar photovoltaic panel, a disc-shaped main body air inlet pipeline, a transition pipeline, a middle pipeline, a turbofan blade generator set and a trumpet-shaped air outlet pipeline, a plurality of air inlets are formed in the circumferential side face of the disc-shaped main body air inlet pipeline, and an air outlet is formed in the bottom face of the disc-shaped main body air inlet pipeline. The transition pipeline is in a horn shape, the top end of the transition pipeline is connected with the bottom face of the disc-shaped main body air inlet pipeline, the size of the bottom end of the transition pipeline is the smallest, the top end of the middle pipeline is connected with the bottom end of the transition pipeline, and the turbofan blade generator set is arranged in the middle pipeline and connected with the bottom end of the middle pipeline. And the solar photovoltaic panel is arranged on the outer top surface of the air inlet pipeline of the disc-shaped main body. According to the invention, the risks of uneven stress of each blade and breakage of windmill blades caused by side blowing of typhoon to the fan blades are effectively avoided, and the photovoltaic and wind power generation device integrates the advantages of high efficiency, space saving, silence, environmental protection, safety and stability of photovoltaic and wind power generation.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power generation, and more specifically, to an all-round wind duct power generation system with wind and solar complementarity. Background Art

[0002] At present, wind power generation is still mainly based on wind turbines with fan blades. This structure is greatly affected by wind force, and the fan blades are large and must be exposed to the outside, which is easily damaged. The structure still needs to be improved. The utility model proposes a new type of power generation device, which provides another idea for the development of wind power generation. Summary of the invention

[0003] In view of the shortcomings of the prior art, the purpose of the present invention is to provide an all-round wind duct power generation system with wind and solar complementarity, which effectively avoids the side blowing of typhoons on wind turbine blades, causing uneven force on each blade and the risk of wind turbine blade breakage. The utility model combines the advantages of photovoltaic and wind power generation such as high efficiency, space saving, quietness, environmental protection, safety and stability.

[0004] The above technical objectives of the present invention are achieved through the following technical solutions:

[0005] A wind-solar complementary all-round wind duct power generation system comprises a bracket, a solar photovoltaic panel, a disc-shaped main air inlet duct, a transition duct, a middle duct, a turbofan blade generator set and a trumpet-shaped air outlet duct. The disc-shaped main air inlet duct is arranged on the bracket, and the transition duct, the middle duct and the trumpet-shaped air outlet duct are fixedly arranged in the bracket.

[0006] A plurality of air inlets are arranged on the circumferential side of the disc-shaped main body air inlet duct, an air outlet is arranged on the bottom surface of the disc-shaped main body air inlet duct, the transition duct is a trumpet-shaped duct, the top end of the transition duct has the largest size and is connected to the bottom surface of the disc-shaped main body air inlet duct, and the bottom end of the transition duct has the smallest size, the middle duct is cylindrical, and the top end is connected to the bottom end of the transition duct, the turbofan blade generator set is arranged in the middle duct, wherein the turbofan blade group of the turbofan blade generator set faces the transition duct, the top end of the trumpet-shaped air outlet duct has the smallest size and is connected to the bottom end of the middle duct, and the bottom end of the trumpet-shaped air outlet duct has the largest size, and the solar photovoltaic panel is arranged on the outer top surface of the disc-shaped main body air inlet duct.

[0007] In one of the embodiments, the interior of the disc-shaped main air inlet duct is divided into multiple chambers based on the axis, each chamber is provided with an air inlet, and a sub-air outlet is provided on the bottom surface of each chamber, and multiple sub-air outlets constitute the air outlet on the bottom surface of the disc-shaped main air inlet duct.

[0008] In one embodiment, the transition pipe is divided into a plurality of first branch pipes, the number of the first branch pipes is the same as the number of the chambers, each first branch pipe corresponds to a chamber, and the top end of the first branch pipe is connected to the corresponding chamber.

[0009] In one embodiment, the central pipeline is divided into an air intake section and a wind power generation section from top to bottom, the air intake section is divided into a plurality of second branch pipelines, the number of the second branch pipelines is the same as the number of the first branch pipelines, each first branch pipeline corresponds to a second branch pipeline, and the top end of the second branch pipeline is connected to the corresponding second branch pipeline, the turbofan blade generator set is in the wind power generation section, and the turbofan blade group of the turbofan blade generator set is close to the bottom end of the air intake section.

[0010] In one of the embodiments, the number of the chambers is six, and the six chambers are evenly distributed in the disc-shaped main air inlet duct, and the number of the first branch pipes and the second branch pipes are both six.

[0011] In one of the embodiments, the turbofan blade generator set also includes a main shaft and a generator, the main shaft is arranged along the axis of the central pipeline, the main shaft is connected to the generator, and the top end of the main shaft is connected to the turbofan blade set.

[0012] In one of the embodiments, there is a gap between the trumpet-shaped air outlet duct and the plane below to facilitate the discharge of air flow.

[0013] In one of the embodiments, the gap between the trumpet-shaped air outlet pipe and the plane below is greater than or equal to 0.5m.

[0014] In summary, the present invention has the following beneficial effects:

[0015] The utility model uses air inlets located in different directions to meet the change of wind direction and change the direction of airflow without the need for a wind direction yaw system, and uses the principle of Venturi effect that when the restricted airflow passes through the reduced flow section of the transition duct, the airflow will have an increased wind speed and a reduced air pressure to drive the turbofan blade generator set to generate electricity, and generates electricity through solar photovoltaic panels, effectively avoiding typhoons blowing sideways on the wind turbine blades, causing uneven force on each blade and the risk of windmill blades breaking. The utility model combines the advantages of photovoltaic and wind power generation, such as high efficiency, space saving, quietness, environmental protection, safety and stability. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is an overall schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the independent airway of the utility model.

[0018] In the figure: 1. disc-shaped main air inlet duct, 2. solar photovoltaic panel, 3. transition duct, 4. middle duct, 5. turbofan blade generator set, 6. trumpet-shaped air outlet duct, 7. bracket, 8. control system;

[0019] 11. air inlet, 31. first branch pipe, 41. air inlet section, 42. wind power generation section, 43. second branch pipe, 51. turbofan blade assembly, 52. main shaft, 53. generator. DETAILED DESCRIPTION

[0020] The present invention is described in detail below in conjunction with the accompanying drawings and embodiments.

[0021] It is worth noting that the directional words such as "upper" and "lower" involved in this article are all relative to the viewing angle of the drawings and are only for the convenience of description and cannot be understood as limitations on the technical solution.

[0022] The utility model proposes an all-round wind duct power generation system with complementary wind and solar power, including a bracket 7, a solar photovoltaic panel 2, a disc-shaped main air inlet duct 1, a transition duct 3, a middle duct 4, a turbofan blade generator 53 group 5 and a trumpet-shaped air outlet duct 6, wherein the disc-shaped main air inlet duct 1 is arranged on the bracket 7, and is connected to the top of the transition duct 3 at the bottom, the top of the middle duct 4 is connected to the bottom of the transition duct 3, the turbofan blade generator 53 group 5 is arranged in the middle duct 4, and the trumpet-shaped air outlet duct 6 is connected to the bottom of the middle duct 4. The specific structures of each part are as follows:

[0023] like Figure 1-2 As shown, a plurality of air inlets 11 are arranged on the circumferential side of the disc-shaped main body air inlet duct 1 , and an air outlet is arranged on the bottom surface of the disc-shaped main body air inlet duct 1 , and airflow can enter the disc-shaped main body air inlet duct 1 from the plurality of air inlets 11 .

[0024] The transition duct 3 is a trumpet-shaped duct, which is fixedly arranged in the bracket 7. The top end of the transition duct 3 has the largest size and is connected to the bottom surface of the disc-shaped main body air inlet duct 1. The bottom end of the transition duct 3 has the smallest size. After the airflow enters the transition duct 3 from the disc-shaped main body air inlet duct 1, the airflow is restricted by the shape of the transition duct 3, so that the wind speed increases rapidly. The reduction of the airflow pressure in this area generates low pressure near the high-speed flowing fluid, thereby generating an adsorption effect to keep the airflow continuously entering the disc-shaped main body air inlet duct 1.

[0025] The middle pipe 4 is cylindrical in shape and is fixedly arranged in the bracket 7. The top end is connected to the bottom end of the transition pipe 3. The turbofan blade generator 53 group 5 is arranged in the middle pipe 4, wherein the turbofan blade group 51 of the turbofan blade generator 53 group 5 faces the transition pipe 3.

[0026] The top end of the trumpet-shaped air outlet duct 6 has the smallest size and is connected to the bottom end of the middle pipe 4, and the bottom end of the trumpet-shaped air outlet duct 6 has the largest size. After the airflow passes through the turbofan blade generator 53 group 5, the airflow reaches the trumpet-shaped air outlet duct 6. Since the air outlet of the trumpet-shaped air outlet duct 6 is a gradually expanding trumpet-shaped structure, the cross-sectional area of ​​the airflow suddenly increases, thereby reducing the speed of the air outlet, reducing the relative resistance between the air inside the middle pipe 4 and the external air, and making it easier for the trumpet-shaped air outlet duct 6 to exhaust air.

[0027] The solar photovoltaic panel 2 is arranged on the outer top surface of the disc-shaped main air inlet duct 1 .

[0028] Furthermore, the inside of the disc-shaped main air inlet duct 1 is divided into multiple chambers based on the axis, each chamber is provided with an air inlet 11, and a sub-air outlet is provided on the bottom surface of each chamber, and multiple sub-air outlets constitute the air outlet on the bottom surface of the disc-shaped main air inlet duct 1. Since multiple chambers are arranged 360 degrees, when the wind speed of the outside nature reaches a certain level, the airflow will inevitably blow into the disc-shaped main air inlet duct 1 from a certain direction, and into the multiple independent chambers facing the wind direction or biased to the wind direction, thereby entering the subsequent transition duct 3 and the intermediate duct.

[0029] In fact, the direction of natural wind changes with time, and the 360° all-round multiple independent air inlets 11 of the disc-shaped main air inlet duct 1 ensure that there must be one or two air inlets facing the wind direction, always making the most efficient use of wind energy. There is no need to constantly change the direction of the disc-shaped main air inlet duct 1 due to changes in wind direction, ensuring that the air inlet 11 of the disc-shaped main air inlet duct 1 is always in a windward state, greatly improving the power generation efficiency of the wind turbine.

[0030] Furthermore, the transition duct 3 is divided into a plurality of first branch ducts 31, the number of the first branch ducts 31 is the same as the number of the chambers, each first branch duct 31 corresponds to a chamber, and the top of the first branch duct 31 is connected to the corresponding chamber. It is easy to understand that the transition duct 3 is divided into a plurality of first branch ducts 31 according to the distribution of the chambers, which can prevent the airflows flowing into different chambers from being directly mixed in the transition duct 3, thereby affecting the ventilation effect.

[0031] Furthermore, the middle pipe 4 is divided into an air intake section 41 and a wind power generation section 42 from top to bottom, the air intake section 41 is divided into a plurality of second branch pipes 43, the number of the second branch pipes 43 is the same as the number of the first branch pipes 31, each first branch pipe 31 corresponds to a second branch pipe 43, and the top of the second branch pipe 43 is connected to the corresponding second branch pipe 43, the turbofan blade generator 53 group 5 is in the wind power generation section 42, and the turbofan blade group 51 of the turbofan blade generator 53 group 5 is close to the bottom end of the air intake section 41. The bottom end of the wind power generation section 42 is connected to the trumpet-shaped air outlet pipe 6.

[0032] Each chamber corresponds to a first branch pipe 31 and a second branch pipe 43, and the three form an independent airway. The flow direction of the independent airway is L-shaped, and the air inlet 11 at the top is large and trumpet-shaped. As it extends, the inner wall of the independent airway will gradually shrink, and finally converge with the air outlets of other independent airways and connect to the wind power generation section 42.

[0033] After the airflow enters one of the independent airways from the wide air inlet 11, the cross-sectional area of ​​the middle section of the independent airway gradually decreases, and the airflow is restricted by the independent airway. According to Bernoulli's principle, when the airflow passes through the narrowest part of the airway, the airflow velocity will increase, which is inevitably accompanied by a decrease in the airflow pressure in this area of ​​the airway. Low pressure will be generated near the high-speed flowing fluid, thereby producing the Venturi effect of adsorption. This pressure difference is used to cause the air around the air inlet 11 of other independent airways facing away from the wind direction to be sucked into the corresponding independent airways and concentrated into the wind power generation section 42. The gathered airflow drives the turbofan blade group 51 of the turbofan blade generator group 53 to rotate rapidly, completing the wind power generation process.

[0034] When the airflow passes through the turbofan blade generator 53, it reaches the air outlet position of the trumpet-shaped air outlet duct 6. The Venturi effect is also used to increase the cross-sectional area of ​​the airflow, thereby reducing the air outlet speed and the relative resistance between the internal air and the external air, making it easier to exhaust air from the air outlet of the trumpet-shaped air outlet duct 6.

[0035] Furthermore, the number of chambers is six, and the six chambers are evenly distributed in the disc-shaped main air inlet duct 1, and the number of the first branch pipes 31 and the second branch pipes are both six. It is easy to understand that in the present invention, the axes of the disc-shaped main air inlet duct 1, the transition duct 3, the middle duct 4 and the trumpet-shaped air outlet duct 6 coincide.

[0036] Furthermore, the turbofan blade generator 53 group 5 also includes a main shaft 52 and a generator 53, the main shaft 52 is arranged along the axis of the middle pipe 4, the main shaft 52 is connected to the generator 53, and the top of the main shaft 52 is connected to the turbofan blade group 51. It is easy to understand that the main shaft 52 and the generator 53 are connected to the inner wall of the middle pipe 4 through a bearing seat or a connecting frame in the middle pipe 4, and these connection structures are not shown in the drawings.

[0037] Furthermore, there is a gap between the trumpet-shaped air outlet pipe 6 and the lower plane to facilitate the discharge of airflow.

[0038] Furthermore, the gap between the trumpet-shaped air outlet pipe 6 and the lower plane is greater than or equal to 0.5m.

[0039] The present invention further comprises a control system 8 , which is an existing conventional control system 8 and is connected to the generator 53 . The present invention does not impose any limitation on the control system 8 .

[0040] When the solar radiation reaches a certain intensity, the solar photovoltaic panel 2 installed on the top of the disc-shaped main air inlet duct 1 converts light energy into electrical energy and starts to generate electricity. The control system 8 continuously switches and adjusts the working state of the battery pack according to the changes in sunlight intensity, wind force and load: on the one hand, the adjusted electric energy is directly sent to the DC or AC load. On the other hand, the excess electric energy is sent to the battery storage or the external network. When the power generation cannot meet the load demand, the control system 8 sends the battery's electric energy to the load, ensuring the continuity and stability of the entire system. The utility model can make up for the defects of independent wind power and photovoltaic systems in terms of resources, and realize day and night complementarity and seasonal complementarity. While ensuring the same power supply, the capacity of the energy storage battery can be greatly reduced. The power generation system has the characteristics of stability, reliability, strong continuity and good economic benefits.

[0041] The utility model uniquely sets the generator 53 inside, and there are no visible rotating blades outside. Therefore, compared with the traditional horizontal axis and vertical axis generators 53, the impact on the surrounding environment is minimized. The utility model will not cause harm to birds around the wind power generation device, and will not affect the local humidity and cause dust precipitation due to the rotation of the blades. It is more environmentally friendly and safe. In addition, when encountering most strong typhoons, it effectively avoids the typhoon from blowing sideways on the fan blades, causing uneven force on each blade and the risk of fan blade breaking. The utility model combines most of the advantages of photovoltaic and wind power generation, namely high efficiency, space saving, quiet and environmental protection, safety and stability.

[0042] The above is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention. It should be pointed out that for ordinary technicians in this technical field, some improvements and modifications without departing from the principle of the present invention should also be regarded as the protection scope of the present invention.

Claims

1. A wind-solar complementary omnidirectional wind duct power generation system, characterized in that: The invention comprises a support (7), a solar photovoltaic panel (2), a disc-shaped main body air inlet duct (1), a transition duct (3), a middle duct (4), a turbofan blade generator (53) group (5) and a trumpet-shaped air outlet duct (6), wherein the disc-shaped main body air inlet duct (1) is arranged on the support (7), and the transition duct (3), the middle duct (4) and the trumpet-shaped air outlet duct (6) are fixedly arranged in the support (7). A plurality of air inlets (11) are arranged on the circumferential side of the disc-shaped main body air inlet duct (1), and an air outlet is arranged on the bottom surface of the disc-shaped main body air inlet duct (1). The transition duct (3) is a trumpet-shaped duct, the top end of the transition duct (3) has the largest size and is connected to the bottom surface of the disc-shaped main body air inlet duct (1), and the bottom end of the transition duct (3) has the smallest size. The middle duct (4) is cylindrical, and the top end is connected to the bottom end of the transition duct (3). The turbofan blade generator (53) group (5) is arranged in the middle duct (4), wherein the turbofan blade group (51) of the turbofan blade generator (53) group (5) faces the transition duct (3). The top end of the trumpet-shaped air outlet duct (6) has the smallest size and is connected to the bottom end of the middle duct (4), and the bottom end of the trumpet-shaped air outlet duct (6) has the largest size. The solar photovoltaic panel (2) is arranged on the outer top surface of the disc-shaped main body air inlet duct (1).

2. The wind-solar complementary omnidirectional wind duct power generation system according to claim 1, characterized in that: The interior of the disc-shaped main air inlet duct (1) is divided into a plurality of chambers based on the axis, each chamber is provided with an air inlet (11), and a sub-air outlet is provided on the bottom surface of each chamber, and the plurality of sub-air outlets constitute an air outlet on the bottom surface of the disc-shaped main air inlet duct (1).

3. The wind-solar complementary omnidirectional wind duct power generation system according to claim 2, characterized in that: The transition pipe (3) is divided into a plurality of first branch pipes (31), the number of the first branch pipes (31) is the same as the number of the chambers, each first branch pipe (31) corresponds to a chamber, and the top end of the first branch pipe (31) is connected to the corresponding chamber.

4. The wind-solar complementary omnidirectional wind duct power generation system according to claim 3, characterized in that: The middle pipeline (4) is divided into an air intake section (41) and a wind power generation section (42) from top to bottom; the air intake section (41) is divided into a plurality of second branch pipelines (43); the number of the second branch pipelines (43) is the same as the number of the first branch pipelines (31); each first branch pipeline (31) corresponds to a second branch pipeline (43); and the top end of the second branch pipeline (43) is connected to the corresponding second branch pipeline (43); the turbofan blade generator (53) group (5) is located in the wind power generation section (42); and the turbofan blade group (51) of the turbofan blade generator (53) group (5) is close to the bottom end of the air intake section (41).

5. The wind-solar complementary omnidirectional wind duct power generation system according to claim 4, characterized in that: The number of the chambers is six, and the six chambers are evenly distributed in the disc-shaped main air inlet duct (1), and the number of the first branch ducts (31) and the second branch ducts are both six.

6. The wind-solar complementary omnidirectional wind duct power generation system according to claim 1, characterized in that: The turbofan blade generator (53) group (5) further comprises a main shaft (52) and a generator (53), wherein the main shaft (52) is arranged along the axis of the central pipeline (4), the main shaft (52) is connected to the generator (53), and the top end of the main shaft (52) is connected to the turbofan blade group (51).

7. The wind-solar complementary omnidirectional wind duct power generation system according to claim 1, characterized in that: There is a gap between the trumpet-shaped air outlet pipe (6) and the plane below, which facilitates the discharge of airflow.

8. The wind-solar complementary omnidirectional wind duct power generation system according to claim 7, characterized in that: The gap between the trumpet-shaped air outlet pipe (6) and the plane below is greater than or equal to 0.5 m.

Images