Pipeline type wind power generation device and method

Abstract

According to the pipeline type wind power generation device and method, a plurality of sections of pipelines form a fluid conveying pipeline, a plurality of wind power generator sets are installed in the pipeline, an air outlet fan is used for blowing air outwards to form an air pressure difference, the air enters from an air inlet, rapidly flows in and flows towards a low-pressure area at the tail end of the pipeline, and wind energy is formed; the blades of the wind generating sets are blown to drive the rotating shaft to rotate, and the rotating shaft drives the generator to rotate to generate electric energy. The air pressure difference in the pipeline is the basic power for flowing of the air flow, the energy of the air flow is directly increased by doing work on the air flow, the fan blades absorb the energy, the energy is reduced, the air speed is slowed down, the driving force of the air pressure difference supplements the energy, the high air speed in the pipeline is kept, and the steps are repeated till the air flow is exhausted out of the pipeline by the fan.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of wind power generation technology, and in particular to a pipeline type wind power generation device and method. BACKGROUND

[0002] Current wind power generation technology is mainly divided into large-scale centralized and small-scale household distributed types, but both have significant drawbacks. Large wind turbines need to occupy a large piece of land or water area. The rotating blades are not only a deadly threat to migratory birds, but also interfere with residents' lives and communication signals due to mechanical noise and equipment electromagnetic radiation during operation. It is difficult to develop construction in low wind speed areas or complex terrain, and it needs to be equipped with long-distance power transmission lines, which further increases the development restrictions and costs.

[0003] Small household wind turbines are highly dependent on wind speed, and most residential areas are in low wind environments. Wind speed fluctuations can easily lead to unstable output voltage and frequency, and additional inverter voltage stabilizing and power storage circuits are required for use. The single machine capacity is small, and it is difficult to meet the daily electricity demand of the family even in ideal wind speed, and the power generation fluctuates greatly due to uncontrollable factors such as season and weather, and cannot be used as a stable power source for independent operation.

[0004] The present application provides a pipeline type wind power generation device and method, which solves the problem that the wind power generation is small in natural environment.

[0005] Therefore, the present application provides a pipeline type wind power generation device in the first aspect, which comprises: a plurality of pipeline bodies, each of which has a hollow conveying channel, and the two ends of each pipeline body are provided with flanges; adjacent two pipeline bodies are spliced and fastened by the flanges, flange pads and fasteners (bolts / screws), and a plurality of pipelines are connected to form a fluid conveying pipeline; one end of the pipeline has an air inlet, and the end of the pipeline is connected with at least one air outlet; Each air outlet is provided with a fan, which is used to drive airflow to flow out of the air outlet of the pipeline, and the airflow enters the air inlet of the pipeline; At least one group of wind turbine generators is installed in each pipeline body; the wind turbine generator comprises a fan blade, a rotating shaft and a generator; The rotating shaft is rotatably mounted on the bracket through an outer spherical surface bearing; one end of the rotating shaft is equipped with the outer spherical surface bearing, and the other end penetrates through the outer spherical surface bearing and is in driving connection with the input shaft of the generator to drive the generator to generate electricity; The electric wire of the generator is led out of the pipeline through the pre-designed threading hole of the pipeline, and the gap is sealed with sealant; The bottom of each section of the pipeline body is provided with the cement pier for supporting and fixing.

[0006] Preferably, the air inlet is provided with the gauze for filtering impurities, which is detachably fixed on the flange of the air inlet by bolts.

[0007] Preferably, the wind turbine set adopts an integrated long shaft structure, a plurality of blade assemblies are spaced along the axial direction of the shaft, and the blades of all the blade assemblies are uniformly installed in a radial direction or in an axial direction.

[0008] Preferably, the wind turbine set further comprises a functional blade assembly, which is composed of blades capable of converting wind energy into mechanical energy, and the blades are selected from one of lift-type blades and drag-type blades.

[0009] Preferably, the overall structure of the pipeline body along the length direction is configured as a straight flat structure or a spiral structure extending around a central axis.

[0010] Preferably, a plurality of the wind turbine sets are arranged in the pipeline, and the length of each section of the pipeline is adapted to the length of the wind turbine set, and the spacing between adjacent two wind turbine sets is equal.

[0011] Preferably, the electric wire of the generator is bound to the bracket foot by an insulating binding tape, the binding point is selected on the leeward surface of the bracket foot away from the sharp edge, and the fixed electric wire naturally extends along the axial direction of the bracket foot.

[0012] In the second aspect, the application further provides a pipeline wind power generation method, which applies the pipeline wind power generation device. S1, starting the fan installed at the air outlet of the pipeline end to rotate at a high speed; the fan rotation actively draws out the air in the pipeline to form a stable low-pressure area in the pipeline; S2, due to the obvious air pressure difference between the inside and outside of the pipeline, the external air at the air inlet of the pipeline is quickly "pressed into" the inside of the pipeline under the action of atmospheric pressure, thereby forming a directional and high-speed airflow flowing from the air inlet to the air outlet; S3, the high-speed airflow flows in the pipeline and passes through a plurality of wind turbine sets pre-installed in the middle section of the pipeline, the kinetic energy of the airflow drives the rotation of the blades, and the rotation of the shaft drives the rotation of the rotor of the generator, thereby converting mechanical energy into electrical energy; S4, the airflow after completing the power generation and driving continues to flow to the air outlet and is smoothly discharged outside the pipeline by the continuously rotating fan, so as to ensure that the air pressure difference and airflow speed in the pipeline always remain stable, thereby realizing continuous power generation.

[0013] Preferably, the power generated by the plurality of generators is large, and the power consumption of the fan of the air outlet is small; the power generated by the plurality of generators is greater than the power consumed by the fan.

[0014] From the above technical solution, the present application has the following advantages: The present application connects multiple pipes to form a long pipe, and multiple small and medium-sized wind power generators are arranged in the pipe. The fan of the air outlet is used to blow air outward to form a low pressure area. The air enters the air inlet and flows quickly to form wind energy. The wind energy drives the multiple sets of wind blades to rotate the shaft, which drives the generator to rotate and generate electricity. The power generated by the plurality of generators is large, and the power consumption of the fan is small, so that unlimited clean electricity can be generated. Although the wind blades and the pipe will consume the kinetic energy of the airflow through blocking and friction, resulting in a decrease in local wind speed; but the air pressure difference as the fundamental driving force of the airflow will continuously do work to supplement the energy and maintain the wind speed. The present application can construct the power generation device nearby, and can generate electricity stably all day long. The device has a simple structure and low cost, and is easy to maintain. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 The mechanical structure diagram of the flat pipe connecting assembly provided by the embodiment of the present application is shown in the figure; Figure 2 The internal structure diagram of the pipe provided by the embodiment of the present application is shown in the figure; Figure 3 The structure diagram of the wind power generator set provided by the embodiment of the present application is shown in the figure; Figure 4 The mechanical structure diagram of the spiral pipe provided by the embodiment of the present application is shown in the figure; Figure 5 The fan diagram of the air outlet provided by the embodiment of the present application is shown in the figure; Figure 6 The flow chart of the pipe type power generation method provided by the embodiment of the present application is shown in the figure. DETAILED DESCRIPTION

[0016] In order to enable the personnel in the technical field to better understand the present application, the technical solutions in the embodiments of the present application will be described clearly and completely below with reference to the drawings in the embodiments of the present application. All other embodiments obtained by the personnel in the field without creative labor based on the embodiments in the present application belong to the scope of protection of the present application.

[0017] Therefore, the present application provides a pipe type wind power generation device, which comprises a plurality of pipes 16, a fan 11, a wind power generator set 7, a support 5 and a cement pier 12, which work cooperatively to realize the directional guidance of airflow in the pipe 16 and stable power generation.

[0018] As Figure 1As shown, the multi-section pipe 16 has the same body specification, each section has a hollow conveying channel, and flanges 6 are arranged at both ends. Before the pipe 16 is spliced, a flange gasket 13 is arranged between the flanges 6 of the adjacent two sections of the pipe 16 to ensure the air tightness after connection; then, fasteners (bolts 14 / screws 15) are sequentially penetrated through the bolt holes of the two flanges 6, and the adjacent pipes 16 are firmly spliced and fastened by uniformly tightening the bolts 14. The above operation is repeated to sequentially connect multiple pipes 16, and finally a fluid conveying pipe 16 with a certain distance is formed.

[0019] One end of the pipe 16 is the air inlet 2, and the end of the pipe 16 is provided with the air outlet 10, and the pipe 16 body is spliced and fixed by the flanges 6, the flange gaskets 13 and the fasteners. The bottom of each section of the pipe 16 body is provided with a cement pier 12 for supporting and fixing. The cement pier 12 at the bottom of the pipe 16 body is poured with an arc-shaped seat matching the outer diameter of the pipe 16. The arc-shaped seat of the cement pier 12 is fixedly connected with the bottom of the pipe 16. Rubber buffer pads are arranged between the top of the cement pier 12 and the outer wall of the pipe 16 to reduce vibration transmission, thereby providing stable support for the entire pipe 16 structure and preventing displacement or collapse of the pipe 16 under the action of airflow or external environmental influence.

[0020] Meanwhile, during the prefabrication of the single-section pipe 16, the installation of the small and medium-sized wind turbine generator set 7 is simultaneously performed. In the device, the generator 9 is preferably an excitation generator 9, which has the advantages of relatively simple structure and low manufacturing cost, can effectively control the production cost of the entire power generation device, and can meet the power generation power demand of the airflow driving in the pipe 16.

[0021] Further, as shown in Figure 2 Each section of the pipe 16 body is provided with a set of wind turbine generator sets 7, and multiple sets of wind turbine generator sets 7 are arranged in the multiple sections of the pipe 16. The multiple sets of wind turbine generator sets 7 are installed in the pipe 16 according to the length adaptation of each section of the pipe 16 and the length of the wind turbine generator set 7, and the spacing between the adjacent two sets of wind turbine generator sets 7 is equal. After installing a set of wind turbine generator sets 7 in a single-section pipe 16, the remaining space is used to adapt to the spacing of the adjacent sets and airflow buffering, which not only ensures the installation adaptability, but also ensures that the airflow can uniformly act on each set of wind blades 3, avoiding energy waste caused by improper spacing.

[0022] Specifically, each group of wind turbine 7 includes wind blade 3, shaft 8 and generator 9. The core component of the wind turbine 7 is a long shaft 8, which is made of high-strength steel material, and its length can be designed according to the actual length of the pipeline 16 and the power generation demand. The length of the shaft 8 directly determines the upper limit of the number of wind blade 3 components that can be installed. The longer the shaft 8, the more wind blade 3 components can be arranged along its axis, which can increase the energy absorption surface to improve the energy capture efficiency. The greater the energy absorption, the greater the power of the generator 9 that can be driven to generate electricity.

[0023] More specifically, along the axis of the long shaft 8, the wind blade 3 is fixed on the shaft 8 by a connecting member (such as a key connection or a fastening bolt), and forms a composite rotating unit. A plurality of independent wind blade 3 components are fixedly installed at an interval optimized by fluid dynamics simulation. All wind blade 3 components are strictly uniform in installation, and only one of the following two options is selected: Wind blade 3 is uniformly installed radially: the wind blade 3 extends outward perpendicular to the shaft 8, and multiple groups of wind blade 3 form multiple layers of "wind wheels" in the pipeline 16, which can intercept and utilize the airflow flowing axially through the pipeline 16 layer by layer.

[0024] Wind blade 3 is uniformly installed axially: the wind blade 3 is arranged parallel to the shaft 8, and multiple groups of wind blade 3 form a long strip-shaped "propeller group", which can segmentally receive the thrust of the airflow to improve the utilization rate of the airflow energy.

[0025] In addition, the wind blade 3 component has two different types, one is a resistance type wind blade 3, each group has 4 blades, which are flat, and the resistance type wind blade 3 is uniformly installed radially. The length of the blade and the angle with the shaft 8 axis are designed according to the airflow in the pipeline 16. The resistance type wind blade 3 relies on the resistance difference of the airflow to push the rotation, and can start and maintain rotation in a low wind speed environment. The wind blade 3 is located in the airflow passage inside the pipeline 16, and the edge of the wind blade 3 maintains a safe gap with the inner wall of the pipeline 16 to avoid scratching during rotation.

[0026] The other is a lift type wind blade 3, which has 16 blades, and the blade type is a specific airfoil. The lift type wind blade 3 is uniformly installed axially, and the length of the blade and the installation angle are designed according to the airflow in the pipeline 16, as shown in Figure 3 The lift type wind blade 3 utilizes the lift principle in aerodynamics to generate a large rotational torque under the action of the airflow, which is suitable for high-efficiency power generation at high wind speed.

[0027] The main body structure of the fan blade 3 includes a force receiving part, which is specially designed to be driven to rotate around the axis of the rotating shaft 8 by the lift or drag force generated by the airflow on the surface of the force receiving part. After the fan blade 3 is assembled with the rotating shaft 8, the rotating shaft 8 near the generator 9 is inserted through the corresponding outer spherical bearing 4, and the end of the rotating shaft 8 extending out is coaxially connected with the input shaft of the generator 9 through a rigid coupling, so that the rotating shaft 8 can stably drive the rotor of the generator 9 to rotate when the rotating shaft 8 rotates.

[0028] In addition, as shown in Figure 3 The bracket 5 is fixed in the pipeline 16 body and is in the shape of a "Y". A bearing seat mounting plate is welded at the center position. The bracket 5 is fixed to the inner wall of the pipeline 16 by welding or bolt connection. The rotating shaft 8 of the wind turbine generator 7 is installed with outer spherical bearing 4 at both ends, and the outer spherical bearing 4 is fastened on the preset installation position of the bracket 5 by using screws 15. The outer spherical bearing 4 has good rotation accuracy and carrying capacity, which can ensure that the wind turbine generator 7 maintains stable coaxiality during long-term rotation, reduces the wear of the rotating shaft 8, and provides a reliable installation foundation for the wind turbine generator 7.

[0029] In addition, a gauze screen 1 for filtering impurities is arranged at the air inlet 2. The gauze screen 1 is provided with an installation flange matching the flange plate 6 of the air inlet 2, and is detachably fixed on the flange plate 6 of the air inlet 2 by bolts 14, which is convenient for later disassembly and cleaning, and can prevent external impurities (such as leaves, dust, birds, etc.) from entering the pipeline 16 and affecting the operation of the equipment.

[0030] At the same time, as shown in Figure 5 A fan 11 is arranged at each air outlet 10. The fan 11 is fixedly connected with the air outlet 10 through the flange plate 6. The fan 11 is driven by a driving motor and generates negative pressure during operation, which drives the external air to enter the hollow conveying channel from the air inlet 2, flows along the channel direction and flows out from the air outlet 10, and forms a stable directional airflow in the pipeline 16. The more air blown out by the fan 11, the greater the air pressure difference inside and outside the pipeline 16, the faster the wind speed, and the stronger the wind power.

[0031] In addition, the electric wire 17 is bound to the bracket 5 leg by using an insulating binding tape. The binding point is selected on the leeward side (i.e. the side opposite to the airflow direction) of the bracket 5 leg away from the sharp edge. The electric wire 17 is naturally extended along the axis direction of the bracket 5 leg after being fixed at intervals. The electric wire 17 is prevented from rubbing against the inner wall of the pipeline 16 or other components. The electric wire 17 of the generator 9 is led out of the pipeline 16 through the preset wire hole of the pipeline 16. The gap is sealed with sealant to prevent airflow leakage.

[0032] It should be noted that the fan blade 3 and the pipeline 16 will consume the kinetic energy of the airflow by blocking and friction, resulting in a decrease in local wind speed, but the air pressure difference is the fundamental driving force of airflow, which will directly increase the energy (mainly kinetic energy) of the airflow by working on the airflow. Among them, the larger the air pressure difference at the air outlet 10, the stronger the pushing effect on the airflow, which will help to maintain a high flow rate in the pipeline 16; in actual operation, the airflow speed will decrease after encountering the fan blade 3, and as long as the air pressure difference remains unchanged, it will continue to accelerate the airflow, which is a dynamic balance process of the two.

[0033] In simple terms, the air pressure difference is like "thrust", the air in the high-pressure area will be pushed to the low-pressure area, and in this process, the air pressure difference will convert its potential energy into the kinetic energy of the airflow, allowing the airflow to accelerate from a stationary or low-speed state. The essence is to inject energy into the airflow; the larger the air pressure difference, the greater the air pressure gradient force, the stronger the driving force of the air, and the faster the speed of the air flow.

[0034] Further, throughout the process, the air pressure difference is always the "power source", the fan blade 3 and the pipeline 16 only temporarily weaken the wind speed in the local area, and will not stop the air pressure difference from accelerating the airflow. At the same time, the smaller the diameter of the pipeline 16, the faster the wind speed, and the more energy it contains. According to the wind energy formula, when the wind speed increases by 1 times, the energy in the wind will increase by 8 times, and if the wind speed increases by 3 times, it means an energy increase of up to 27 times.

[0035] To further illustrate the adaptive relationship between the fan blade 3 assembly and the pipeline 16 structure, the following two combined application examples are added to adapt to different airflow working condition requirements: Example 1 In this embodiment, as shown in Figure 1 , the overall structure of the pipeline 16 body along its length direction can be configured as a straight flat pipeline 16-1, the airflow flows smoothly in the flat pipeline 16-1, the resistance type fan blade 3 has a large windward area, strong low kinetic energy airflow capture ability, and lower starting wind speed. The structure is simple and convenient to maintain. When the airflow enters from one end of the pipeline 16 and flows in a straight line along the axis of the pipeline 16, the airflow will directly act on the blade surface of the resistance type fan blade 3. Due to the characteristic that the blade structure of the resistance type fan blade 3 has a larger windward surface resistance than the leeward surface, the airflow pushes the blade to generate a rotating torque, driving the fan blade 3 to continue to rotate. The rotating motion of the fan blade 3 is transmitted to the inside of the generator 9 through the input shaft of the generator 9, driving the rotor and stator of the generator 9 to move relative to each other, cutting the magnetic induction line to generate electric energy, and finally the electric energy is led out through the output end of the generator 9. It can be directly used for load or connected to energy storage equipment for storage.

[0036] In addition, if the airflow direction in the pipeline reverses, the rotating direction of the resistance-type fan blade 3 can be reversed synchronously with the airflow direction, and the generator 9 can still normally receive power and generate electricity; if different airflow scenarios need to be adapted, the installation height and angle of the fan blade 3 in the pipeline 16 can be adjusted, or the resistance-type fan blade 3 with different numbers of blades can be replaced, to ensure that the fan blade 3 can always capture the energy of the straight airflow to the greatest extent and maintain stable operation of the generator 9.

[0037] Embodiment 2 In this embodiment, as shown in Figure 2 and Figure 4 The wind turbine generator set 7 selects a lift-type fan blade structure, and its core advantage is that the lift generated by the airflow flowing through the surface of the fan blade 3 drives rotation, and the efficiency is significantly higher than that of the resistance type. The lift-type fan blade 3 adopts an airfoil design, the single blade chord length is 1 meter, the blade span length is 0.3 meters, each set is equipped with 16 fan blades 3, and the fan blade 3 is firmly connected with the steel rotating shaft 8 with a diameter of 100 mm through a mortise joint structure. The stress part of the fan blade 3 is an airfoil curved surface with a specific radian. When the airflow flows along the hollow conveying channel of the spiral pipeline 16-2, due to the guidance of the spiral structure of the pipeline 16, the airflow will generate a certain tangential velocity, and the airflow flowing through the upper and lower surfaces of the fan blade 3 forms a velocity difference, thereby generating upward lift to push the fan blade 3 to rotate around the rotating shaft 8 at a high speed.

[0038] The installation method of the wind turbine generator set 7 is consistent with the foregoing, the rotating shaft 8 is fixed on the metal support 5 of the inner wall of the pipeline 16 through high-precision outer spherical surface bearing 4 at both ends, and the extension end of the rotating shaft 8 is connected with the input shaft of the excitation generator 9 through a rigid coupling to ensure the stability of transmission under high speed. The interval distance of the adjacent two groups of wind turbine generator sets 7 in the unfolding direction of the pipeline 16 is 5 meters, matching the length of a single spiral pipeline 16-2, to ensure that the stable flow field formed by the airflow in the spiral pipeline 16-2 can fully act on each group of fan blades 3.

[0039] As shown in Figure 4 , which is suitable for scenarios pursuing high power generation efficiency, uses the acceleration effect of the spiral pipeline 16-2 on the airflow to improve the power generation performance. The pipeline 16 adopts a spiral pipeline 16-2 structure extending spirally around the central axis, the inner diameter of a single section of the pipeline is 1.0 meters, the spiral length (unfolding length) of a single section is 5 meters, and the spiral angle is 30°. After being sealed and spliced through the flange plate 6, a certain distance of the power generation pipeline 16 is formed. The outer wall of each section of the spiral pipeline 16-2 is provided with a cement pier 12 every 1.5 meters, and the cement pier 12 is fixedly connected with the bottom of the pipeline 16 through pre-buried parts or foundation bolts, to ensure the stability of the spiral pipeline 16-2 under the impact of the airflow.

[0040] In addition, a gauze 1 is installed at the air inlet 2 of the spiral duct 16-2, and an axial flow fan 11 is installed at the air outlet 10. After the fan 11 is started, the spiral duct 16-2 forms a spiral flow state of the airflow, improves the relative speed of the airflow, and the lift-type blade 3 can efficiently capture the kinetic energy of the spiral airflow through the aerodynamic lift, adapt to the change of the airflow direction, and avoid the stall of the blade 3. The combination is suitable for the pipeline 16 scene that needs to utilize the airflow disturbance to improve the wind speed and consider the efficiency and adaptability.

[0041] In the embodiment, during the operation of the pipeline wind power generation device, the fan 11 is first started, the fan 11 keeps high speed, the fan 11 operates to generate negative pressure, drives the external air to enter the hollow conveying channel in the pipeline 16 after being filtered by the gauze 1 at the air inlet 2, and the wind speed is fast. The airflow flows along the channel in a directional manner, drives the blade 3 assembly to rotate, drives the rotating shaft 8 and the input shaft of the generator 9 to rotate, the generator 9 converts mechanical energy into electrical energy, and the electrical energy is output to the energy storage device or the power grid outside the pipeline 16 through the wire 17. Finally, the airflow is discharged from the air outlet 10, and a power generation cycle is completed. During the operation process, whether the pipeline 16 body is a straight pipeline 16-1 or a spiral pipeline 16-2 can be selected according to the airflow speed in the pipeline 16, and the corresponding blade 3 assembly type is matched, so that the device always maintains high power generation efficiency.

[0042] In summary, the specific embodiment realizes the adaptation to different wind conditions and high power generation efficiency through reasonable design and combination of components, and the structure design of each component is convenient for installation, maintenance and long-term stable operation of the device.

[0043] The application also provides a pipeline wind power generation method, which applies the pipeline wind power generation device. S1, the fan 11 installed at the air outlet 10 at the end of the pipeline 16 is started to rotate at high speed; the fan 11 rotates to actively draw the air in the pipeline 16, and a stable low-pressure area is formed in the pipeline 16; S2, due to the obvious air pressure difference between the inside and outside of the pipeline 16, the external air at the air inlet 2 of the pipeline 16 is quickly “pressed into” the inside of the pipeline 16 under the action of atmospheric pressure, so that the directional and high-speed airflow from the air inlet 2 to the air outlet 10 is formed; S3, the high-speed airflow flows in the pipeline 16, flows through the plurality of wind power generator sets 7 pre-installed in the middle section of the pipeline 16, the kinetic energy of the airflow drives the blade 3 to rotate, and the rotating shaft 8 drives the rotor of the generator 9 to rotate, so that mechanical energy is converted into electrical energy; S4, the airflow after completing the power generation and driving continues to flow to the air outlet 10, and is smoothly discharged outside the pipeline 16 by the continuously rotating fan 11, so that the air pressure difference and the airflow speed in the pipeline 16 are always kept stable, and continuous power generation is realized.

[0044] In some embodiments of the present application, the fan 11 draws air out of the duct 16, and the air inside the duct 16 is less, the air pressure is low, and the air outside the duct 16 is more, the air pressure is high, just like water flows to low places, air will also flow from high air pressure to low air pressure, by speeding up the rotation of the fan 11, quickly blowing out the air, the greater the air pressure difference inside the duct 16, the faster the wind speed, the stronger the wind, the greater the energy, the wind blows the fan blade 3, the faster the rotation of the shaft 8 driven by the fan blade 3, the more power generated by the generator 9, the wind energy blows from the air inlet 2 to one after another wind turbine generator set 7 to generate electricity, and continues to flow to the low pressure of the air outlet 10, until the fan 11 exhausts outside the duct 16.

[0045] In summary, without violating the law of conservation of energy, the total power generation of multiple generators 9 inside the duct 16 is large, the power consumption of the fan 11 at the air outlet 2 is small, the power generated by the multiple generators 9 is greater than the power consumed by the fan 11, and the clean electric energy can be output to the outside.

[0046] Although embodiments of the present application have been shown and described, it is to be understood that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present application, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A pipeline-type wind power generation device, characterized in that, include: The pipeline consists of multiple sections, each with a hollow conveying channel and flanges at both ends. Adjacent sections are joined and secured by the flanges, gaskets, and fasteners (bolts / screws), forming a fluid conveying pipeline. One end of the pipeline has an air inlet, and the other end has at least one air outlet. Each of the air outlets is equipped with a corresponding fan, which drives the airflow to flow out of the air outlet of the pipe and to enter the airflow from the air inlet of the pipe; Each section of the pipeline body is equipped with at least one set of the wind turbine generator set; the wind turbine generator set includes the wind blades, the shaft and the generator; The bracket is fixed inside each section of the pipe body, and the rotating shaft is rotatably mounted on the bracket through the outer spherical bearing with a seat; one end of the rotating shaft is equipped with the outer spherical bearing with a seat, and the other end passes through the outer spherical bearing with a seat and is connected to the input shaft of the generator to drive the generator to generate electricity; The generator's wires are led out of the pipe through a pre-set wire hole, and the gaps are sealed with sealant. Each section of the pipe body is provided with a cement block at its bottom for support and fixation.

2. The pipeline-type wind power generation device according to claim 1, characterized in that, The air inlet is provided with a mesh screen for filtering impurities, and the mesh screen is detachably fixed to the flange of the air inlet by bolts.

3. The pipeline wind power generation device according to claim 1, characterized in that, The wind turbine generator set adopts an integrated long shaft structure, with multiple blade assemblies distributed at intervals along the axial direction of the shaft, and the blades of all blade assemblies are uniformly installed radially or axially.

4. The pipeline-type wind power generation device according to claim 3, characterized in that, The wind turbine generator set also includes a functional blade assembly, which consists of blades that can convert wind energy into mechanical energy. The blades are selected from either lift-type blades or drag-type blades.

5. The pipeline-type wind power generation device according to claim 1, characterized in that, The pipe body is configured as a straight, linear structure along its length, or as a spiral structure extending around a central axis.

6. The pipeline-type wind power generation device according to claim 1, characterized in that, The multiple sets of wind turbine generators are installed inside the pipeline, with the length of each section of the pipeline adapted to the length of the wind turbine generators, and the spacing between adjacent sets of wind turbine generators is equal.

7. The pipeline-type wind power generation device according to claim 1, characterized in that, The generator's power cord is secured to the support leg with insulating cable ties. The tying point is selected on the leeward side of the support leg away from the sharp edge, and the secured power cord extends naturally along the axis of the support leg.

8. A method for generating wind power through a pipeline, applicable to the pipeline wind power generation device according to any one of claims 1 to 7, comprising the following steps: S1. Start the fan installed at the air outlet at the end of the duct and make it rotate at high speed; the fan rotation actively draws out the air in the duct and forms a stable low-pressure area inside the duct. S2. Due to the significant air pressure difference between the inside and outside of the pipe, the outside air at the pipe inlet is rapidly "forced" into the pipe under atmospheric pressure, thus forming a directional, high-speed airflow from the inlet to the outlet. S3. High-speed airflow flows inside the pipe and passes through multiple wind turbine generators pre-installed in the middle section of the pipe. The kinetic energy of the airflow drives the wind blades to rotate, which in turn drives the rotor of the generator to rotate through the shaft, converting mechanical energy into electrical energy. S4. After completing the power generation drive, the airflow continues to flow towards the air outlet and is eventually discharged smoothly out of the pipe by the continuously rotating fan, ensuring that the air pressure difference and airflow speed in the pipe remain stable, thus achieving continuous power generation.

9. A pipeline wind power generation method according to claim 8, characterized in that, The multiple generators inside the pipeline generate a large amount of electrical energy, while the fan at the air outlet consumes less power; the electrical energy generated by the multiple generators is greater than the electrical energy consumed by the fan.

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