Wind energy recovery system for closed henhouse

Abstract

The wind energy recovery system comprises a power generation module and a wind collection cover, and the inlet end of the wind collection cover communicates with an air outlet of a negative pressure exhaust fan of the chicken house; the wind collecting cover is further provided with a wind collecting wall used for reducing the through-flow area of the wind outlet end of the wind collecting cover, the outlet end of the wind collecting cover is further connected with a volute, the volute is provided with a cylindrical equipment cavity, and a driving wind wheel is rotationally arranged in the equipment cavity and is in power connection with the power generation module. An air inlet communicated with the equipment cavity is formed in the volute, and an air outlet is formed in the bottom of the equipment cavity; the volute is further provided with an adjusting module used for adjusting the flow direction and the flow speed of airflow in the air inlet. The air flow is accelerated through the air gathering wall and the volute, so that the air flow of the negative pressure exhaust fan is used for pushing the wind driven generator to generate electricity, the tail gas of the henhouse is fully utilized, and the energy consumption in the operation process of the henhouse is reduced.

Description

Technical Field

[0001] The present application relates to the field of animal husbandry technology, and in particular to a wind energy recovery system for a closed chicken house. Background Art

[0002] In the prior art, in order to ensure the stable operation of the circulation in the closed chicken house, cold air is generally transported from the vents to the inside of the chicken house through a wet curtain system. The cold air exchanges heat with the chickens and the environment inside the chicken house while passing through the chicken house. However, the length of the chicken house is generally large, and natural ventilation cannot meet the requirement of timely exhausting the hot air. Therefore, a high-power negative pressure exhaust fan is generally installed in the exhaust port of the chicken house. The hot air inside the chicken house is forcibly extracted through the suction force of the negative pressure exhaust fan, and the extracted air is directly discharged.

[0003] Due to the characteristics of the closed chicken house, in order to ensure the stability of the environment inside the chicken house, the wet curtain system and negative pressure exhaust fan must operate 24 hours a day, which results in higher energy consumption in the operation of the chicken house. Summary of the invention

[0004] The main purpose of the present application is to provide a wind energy recovery system for a closed chicken house, aiming to solve the defect of high energy consumption in the operation of the chicken house existing in the prior art.

[0005] This application achieves the above objectives through the following technical solutions: A wind energy recovery system for a closed chicken house, comprising a power generation module; An air collecting hood, the inlet end of which is connected to the air outlet of the negative pressure exhaust fan of the chicken house; the air collecting hood is also provided with an air collecting wall for reducing the flow area of ​​the air outlet end thereof; A volute, the inlet end of the volute is connected to the outlet end of the wind collecting cover; a cylindrical equipment cavity is provided on the volute, a driving wind wheel is rotatably provided in the equipment cavity, and the driving wind wheel is connected to the power of the power generation module; an air inlet connected to the equipment cavity is provided on the volute, and an air outlet is provided at the bottom of the equipment cavity; A regulating module is arranged on the volute, and is used to control the airflow direction and airflow velocity in the air inlet.

[0006] Optionally, the wind collecting hood includes an air inlet section and an air outlet section, and the wind collecting wall is arranged between the air inlet section and the air outlet section along the air flow direction; the wind collecting wall has a conical structure, and its large end is connected to the air inlet section, and its small end is connected to the air outlet section.

[0007] Optionally, the driving wind wheel includes a main shaft and a plurality of blades, one end of the main shaft is connected to the power of the power generation module; and each blade is connected to the main shaft around the axis of the main shaft.

[0008] Optionally, a hub is also provided on the main shaft, and a plurality of plug-in tenons are provided on the outer peripheral surface of the hub around the axis of the hub. A plug-in tenon plate is also integrally connected to one side of each blade along the width direction of each blade, and the plug-in tenon plate is plug-connected to the plug-in tenon groove; a plurality of fastening bolts are also provided between each plug-in tenon plate and the hub.

[0009] Optionally, the adjustment module includes a plurality of adjustment guide vanes, each of which is evenly arranged in the air inlet around the rotation axis of the main shaft, and each of the adjustment guide vanes is respectively connected to the volute for rotation; a drive ring and a drive module are also provided on the volute, and the drive module controls the drive to rotate around the rotation axis of the main shaft; a plurality of pull rods are hinged on the drive ring, and each of the pull rods is respectively hinged to the adjustment guide vane.

[0010] Optionally, a circular slide rail coaxial with the main shaft is provided on the volute, and a plurality of sliding blocks are provided on the circular slide rail, and each of the sliding blocks is connected to the driving ring respectively.

[0011] Optionally, the adjusting guide vane includes a guide vane body, the cross-section of the guide vane body is arc-shaped, and connecting shafts are provided at the top and bottom of the guide vane body along the height direction of the guide vane body. A crank arm is also provided on the rotating shaft located at the top of the guide vane body, and the crank arm is hingedly connected to the pull rod.

[0012] Optionally, along the height direction of the guide vane body, the two connecting axes coincide with the symmetry axis of the guide vane body.

[0013] Optionally, the driving module includes a plurality of driving cylinders, each of which is evenly arranged around the rotation axis of the main shaft, one end of each of the driving cylinders is rotationally connected to the volute, and an output end thereof is rotationally connected to the driving ring.

[0014] Optionally, the power generation module includes a generator, a battery and an inverter, and the output end of the generator is electrically connected to the battery through the inverter.

[0015] Compared with the prior art, this application has the following beneficial effects: The present application includes a power generation module and a wind collecting hood, wherein the inlet end of the wind collecting hood is connected to the air outlet of the negative pressure exhaust fan of the chicken house; the wind collecting hood is also provided with a wind collecting wall for reducing the flow area of ​​the air outlet end thereof, and the outlet end of the wind collecting hood is also connected with a volute, and a cylindrical equipment cavity is provided on the volute, and a driving wind wheel is rotatably provided in the equipment cavity, and the driving wind wheel is connected to the power of the power generation module; the volute is provided with an air inlet connected to the equipment cavity, and an air outlet is provided at the bottom of the equipment cavity; the volute is also provided with a regulating module for adjusting the airflow direction and airflow velocity in the air inlet; During the operation of the chicken house, cold air is input into the chicken house through the wet curtain system. Due to the large length of the chicken house, a negative pressure exhaust fan must be equipped to discharge the hot air flow through the exhaust port; the high-speed airflow discharged by the negative pressure exhaust fan all enters the wind collecting hood. Since the outlet end of the wind collecting hood is reduced by the wind collecting wall, the airflow passing through the outlet end will be accelerated for the first time, and then the airflow enters the volute, and finally enters the equipment cavity from the air inlet. The flow rate and direction of the airflow in the air inlet can be controlled by the adjustment module, that is, the flow area of ​​each airflow channel in the air inlet is adjusted by the adjustment module to form a gradually reduced airflow channel, which will perform secondary acceleration on the airflow and adjust the airflow direction at the same time. The airflow after passing through the air inlet collides with the driving wind wheel, thereby driving the driving wind wheel to rotate, and the driving wind wheel drives the power generation module to generate electricity. The airflow after passing through the driving wind wheel is directly discharged into the atmospheric environment from the exhaust port at the bottom; The present application realizes wind power generation through the cooperation of wind collecting hood, volute and driving wind wheel and other equipment. Compared with the technical solution of direct emptying in the prior art, the present application realizes the secondary recycling of wind energy. The recycled electricity can be used to drive various electrical equipment, thereby reducing the operating energy consumption of the chicken house and also reducing the operating cost of the chicken house. Secondly, the wind-gathering wall and the volute are fully enclosed structures, so air leakage can be effectively avoided during operation, and the utilization rate of high-speed airflow can be increased as much as possible, thereby improving the recovery rate of wind energy; At the same time, since the negative pressure exhaust fan needs to operate stably for a long time, the entire wind energy recovery system can receive airflow with a stable flow rate for a long time, thereby continuously outputting current in a stable state. Compared with the method of using natural wind to generate electricity, its power output is more stable.

[0016] Finally, the present application achieves double acceleration of the airflow through the combined action of the wind-collecting wall, the volute and the regulating module, thereby avoiding the rapid decrease of the airflow at the outlet of the negative pressure exhaust fan, and at the same time ensuring that the airflow can drive the wind wheel to rotate with a higher airflow, thereby realizing the recovery and utilization of wind energy; At the same time, the volute can also guide the airflow to enter the equipment cavity in an orderly manner around the axis of the driving wind wheel. At the same time, the airflow directions at different positions can push the driving wind energy to rotate counterclockwise or clockwise. On the one hand, it realizes the full utilization of wind force. On the other hand, multiple wind forces can push the driving wind wheel to rotate in the same direction, that is, avoiding the mutual offset of thrust due to opposite airflow directions, which helps to increase the thrust on the driving wind wheel. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 A schematic structural diagram of a wind energy recovery system for a closed chicken house provided in Example 1 of the present application; Figure 2An exploded view of a wind energy recovery system for a closed chicken house provided in Example 1 of the present application; Figure 3 A bottom view of a wind energy recovery system for a closed chicken house provided in Example 1 of the present application; Figure 4 A cross-sectional view of a wind energy recovery system for a closed chicken house provided in Example 1 of the present application; Figure 5 This is an exploded view of the driving wind wheel; Figure 6 A structural schematic diagram and airflow distribution diagram of another feasible technical solution for driving the wind wheel; Figure 7 The figure is the airflow pattern diagram of the wind collecting hood; Figure 8 for Figure 7 An airflow velocity diagram corresponding to the airflow pattern diagram; Fig. 9 It is the speed diagram of the driving wind wheel; Fig.10 This is the power generation distribution diagram.

[0018] Figure markings: 1-power generation module, 2-wind collecting hood, 3-wind collecting wall, 4-volute, 5-equipment cavity, 6-driving wind wheel, 7-air inlet, 8-air outlet, 9-adjusting guide vane, 10-driving ring, 11-pull rod, 12-circular slide rail, 13-slider, 14-driving cylinder, 201-air inlet section, 202-air outlet section, 601-main shaft, 602-blade, 603-wheel hub, 604-plug-in tenon groove, 605-plug-in tenon plate, 606-fastening bolt, 901-guide vane body, 902-connecting shaft.

[0019] The purpose, features and advantages of this application will be further described in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. 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.

[0021] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0022] In the present invention, unless otherwise clearly specified and limited, the terms "connection", "fixation", etc. should be understood in a broad sense. For example, "fixation" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "robot coordinate system and / or m" as an example, it includes the robot coordinate system scheme, or the m scheme, or the scheme that the robot coordinate system and m satisfy at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] Example 1: Reference Figures 1 to 6 This embodiment is an optional embodiment of the present application, which discloses a wind energy recovery system for a closed chicken house, including a power generation module 1, wherein the power generation module 1 includes a chassis and a generator arranged in the chassis, and the power generation module 1 also includes a battery and an inverter, wherein the ionization output end of the generator is electrically connected to the battery through the inverter. It should be pointed out that the above-mentioned power generation equipment is preferably a mature wind power generation equipment in the prior art; The wind energy recovery system further includes a wind collecting hood 2 and a wind collecting wall 3, wherein the wind collecting hood 2 includes an air inlet section 201 and an air outlet section 202, the air inlet section 201 and the air outlet section 202 are in a rectangular parallelepiped structure as a whole, and the flow area of ​​the air outlet section 202 is smaller than the flow area of ​​the air inlet section 201; Along the airflow direction, the air gathering wall 3 is arranged between the air inlet section 201 and the air outlet section 202; the air gathering wall 3 is in a conical structure, the large end of the air gathering wall 3 is connected to the air inlet section 201, and the flow area of ​​the large end is the same as the flow area of ​​the air inlet section 201, and the small end of the air gathering wall 3 is connected to the air outlet section 202, and the flow area of ​​the small end is the same as the flow area of ​​the air outlet section 202; By setting the wind collecting wall 3, the flow area of ​​the wind collecting hood 2 can be gradually reduced, so that the airflow is discharged from the smaller air outlet section 202. According to the Bernoulli equation, the above structure can accelerate the airflow velocity through the air outlet section 202, thereby achieving the first acceleration of the airflow velocity through the wind collecting wall 3; Figure 7 , which disclosed the airflow simulation diagram of the wind hood. From the cross-sectional velocity of the airflow, it can be seen that the airflow velocity has been accelerated; at the same time, Figure 8 The velocity distribution of the air flow cross section in the air outlet section 202 is disclosed.

[0025] At the same time, the structure is simple, which helps to reduce the cost of the equipment while ensuring the stable operation of the equipment.

[0026] In order to ensure the ventilation quality in the prior art, all negative pressure exhaust fans are usually installed on the same wall, and the air intake section of the wind collecting hood 2 is installed on the same wall. At the same time, the wind collecting hood 2 needs to include all the negative pressure exhaust fans, that is, projected along the direction of air flow, and the projections of all negative pressure exhaust fans need to be within the projection of the wind collecting hood 2, thereby ensuring that the airflow discharged from the negative pressure exhaust fan all enters the wind collecting hood 2, which helps to improve the wind energy recovery rate.

[0027] Furthermore, the wind energy recovery system further comprises a volute 4, wherein a device cavity 5 and an air flow channel are arranged in the volute 4, wherein the device cavity 5 is a cylindrical structure, and the axis of the device cavity 5 overlaps with the axis of the volute 4; around the axis of the device cavity 5, the air flow channel wraps the device cavity 5; An air inlet 7 is also provided on the outer peripheral surface of the equipment cavity 5, and the air inlet 7 connects the air flow channel with the equipment cavity 5; the inlet end of the air flow channel is connected with the air outlet section 202 of the air collecting cover 2, so that the air flow in the air collecting cover 2 is guided into the air flow channel, and finally enters the equipment cavity 5 through the air inlet 7; At the same time, an exhaust port 8 is arranged at the bottom of the equipment cavity 5, and the power generation module 1 is arranged at the top of the equipment cavity 5; of course, the installation positions of the exhaust port 8 and the power generation module 1 can be swapped.

[0028] It should be noted that, since the air inlet is located on the outer peripheral surface of the equipment cavity 5 , the airflow will enter the equipment cavity 5 along the radial direction of the equipment cavity 5 .

[0029] A driving wind wheel 6 is also arranged in the equipment cavity 5. The driving wind wheel 6 includes a main shaft 601 and a plurality of blades 602. A rolling bearing is arranged at the top of the equipment cavity 5, and a thrust ball bearing is arranged at the bottom. The bottom end of the main shaft 601 is plug-connected with the thrust ball bearing, and the top end is connected with the rolling bearing. The top end of the main shaft 601 passes through the volute 4 and extends into the chassis, and is connected to the generator power through a transmission component such as a bevel gear. At the same time, a reducer can be added between the main shaft 601 and the generator to control the generator speed. Around the axis of the main shaft 601, each blade 602 is connected to the main shaft 601 respectively. Furthermore, a hub 603 is also provided on the main shaft 601, and a plurality of inserting tenons 604 are provided on the outer peripheral surface of the hub 603 around the axis of the hub 603; along the circumferential direction of the main shaft 601, the bottom end of each inserting tenon 604 is closed, and the top end thereof is open, and at the same time, along the radial outward direction of the main shaft 601, the inserting tenons 604 are also open; It should be noted that the length direction of each of the blades 602 is parallel to the axial direction of the main shaft 601, and the width direction of each of the blades 602 is the radial direction of the main shaft 601; Along the width direction of each of the paddles 602, one end of each of the paddles 602 that is directly opposite to the main shaft 601 is integrally connected with a plug-in tenon plate 605. During assembly, the length direction of each of the plug-in tenon plates 605 is inserted into the plug-in tenon groove 604 from the top end of the plug-in tenon groove 604 along the axial direction of the main shaft 601. Meanwhile, along the length direction of the plug-in tenon plate 605, a plurality of fastening bolts 606 are also provided between the plug-in tenon plate 605 and the wheel hub 603, thereby realizing a fixed connection between the main shaft 601 and each of the paddles 602. Compared with the traditional welding structure, in the radial direction along the main shaft 601, the plug-in tenon groove 604 and the plug-in tenon plate 605 are mutually fitted and abutted, and the centrifugal force bearing area of ​​the impeller 602 during high-speed rotation is larger, and the force per unit area is smaller; Secondly, in the above structure, when a single blade 602 is damaged, not only is the blade 602 removed faster, but only the damaged blade 602 needs to be replaced, and there is no need to replace the hub 603 and multiple intact blades 602 together, which can effectively reduce the maintenance cost and difficulty of the equipment; Furthermore, the surface where the splicing groove 604 and the splicing tenon plate 605 fit together can be set to an arc or an eight-shaped structure. The force can be dispersed through the above-mentioned inclined thrust surface, part of the force is along the radial direction, and part of the force is directly against the blade 602. Since the splicing tenon plates 605 are provided on both sides of the blade 602, part of the force on both sides will offset each other, further reducing the influence of the centrifugal force on the main shaft 601.

[0030] Furthermore, an adjustment module is also provided on the volute 4, and the adjustment module includes a plurality of adjustment guide vanes 9, and each of the adjustment guide vanes 9 is evenly arranged in the air inlet 7 around the rotation axis of the main shaft 601; The regulating guide vane 9 includes a guide vane body 901, the cross section of the guide vane body 901 is arc-shaped, and along the height direction of the guide vane body 901, the top and bottom of the guide vane body 901 are provided with connecting shafts 902, and the connecting shafts 902 at both ends are rotatably connected to the top and bottom of the volute 4 through rolling bearings respectively; It should be noted that, in the fully closed state, each of the regulating guide vanes 9 will be connected to form a circular closed structure, thereby completely closing the entire air inlet 7. During the adjustment process, any two adjacent regulating guide vanes 9 can be dislocated by rotating each of the regulating guide vanes 9, thereby forming an airflow channel. Combination Figure 4 It can be seen that the airflow channel presents a structure with a large inlet end and a small outlet end, and along the airflow direction, the entire airflow channel is an arc-shaped structure as a whole; at the same time, the size of the inlet end and the outlet end can also be adjusted by controlling the rotation angle of the guide vane 9; Compared with the prior art, firstly, the present application realizes arbitrary adjustment of the flow area of ​​the airflow channel by adjusting the angle of the adjusting guide vane 9, thereby improving the adjustability of the whole device as much as possible. Especially under low wind speed conditions, the above adjustment can effectively increase the wind speed at the inlet end of the driving wind wheel 6, thereby ensuring the stable rotation of the driving wind wheel 6. Secondly, the arc-shaped channel can effectively adjust the direction of the airflow, so that the airflow direction is more matched with the blades, ensuring the consistency of thrust, avoiding the opposite thrust or even offsetting each other, which is conducive to improving the recovery rate of wind energy; Finally, the airflow with a large inlet and a small outlet can better accelerate the airflow, thereby achieving secondary acceleration of the airflow, increasing the thrust of the airflow on the blades, and ensuring the stable operation of the blades under conditions such as low wind speeds; Further, along the height direction of the guide vane body 901, the two connecting shafts 902 both coincide with the symmetry axis of the guide vane body 901, that is, the two connecting shafts 902 are both provided with the middle part of the guide vane body 901; In the above structure, there are guide vane bodies 901 on both sides of the connecting shaft 902. During the rotation adjustment process, part of the guide vane body 901 is located in the equipment cavity 5, and part is located in the air flow channel of the volute 4, which can intercept and guide more air flow into the equipment cavity 5; at the same time, the above structural design has better balance, and the rotation adjustment of the guide vane 9 is more stable; Further, see Figure 6 , the curvature of each regulating guide vane 9 can be different, that is, in the volute 4, along the airflow direction, the curvature of each regulating guide vane 9 increases linearly, and the number of regulating guide vanes 9 can also be appropriately increased or decreased; After the above structure controls the rotation angle of the regulating guide vane 9, the length of each regulating guide vane 9 in the airflow channel of the volute 4 will increase linearly along the airflow direction, thereby forming a stepped interception structure, and then forming a step-by-step interception in the volute 4; On the one hand, it can ensure that the distal airflow along the radial direction of the volute 4 is introduced into the equipment cavity 5 as much as possible to drive the driving wind wheel 6 to rotate, thereby improving the recovery rate of wind energy; secondly, due to the shielding of the front-end adjusting blades, the rear end may have a problem of insufficient airflow, and the rear end airflow can be effectively supplemented through the above-mentioned graded interception, thereby ensuring that the airflow flow received by the driving wind wheel 6 in different directions is basically the same, thereby ensuring that the thrust in each direction is basically the same, and improving the consistency of force; Finally, along the direction of air flow, the above structure can also gradually reduce the flow area of ​​the airflow channel in the volute 4, forming a structure with a large inlet end and a gradually reduced outlet end, thereby accelerating the airflow three times. At the same time, the airflow can be introduced to the far end, so that the airflow can be distributed more reasonably in the volute 4, which is conducive to improving the recovery rate of wind energy.

[0031] At the same time, the above technical solution only adjusts the curvature of the regulating blade, and does not add new structure to the mechanical structure. Its structure is simple, which increases the reliability of the equipment and has significant technical effects.

[0032] Embodiment 2: Furthermore, a drive ring 10, a circular slide rail 12 and a drive module are further provided on the volute 4, the circular slide rail 12 is coaxially arranged with the main shaft 601, a plurality of sliders 13 are slidably arranged on the circular slide rail 12, and each of the sliders 13 is connected to the drive ring 10, so that the drive ring 10 is connected to the volute 4 for rotation, and the rotation axis of the drive ring 10 is ensured to coincide with the axis of the main shaft 601; The driving module includes a plurality of driving cylinders 14, each of which is evenly arranged around the rotation axis of the main shaft 601, one end of each of which is rotationally connected to the volute 4 via a rotating shaft, and an output shaft thereof is hingedly connected to the driving ring 10 via a pin shaft; Along the length direction of the regulating guide vane 9, a connecting shaft 902 located at the same end as the driving module passes through the volute 4, and a crank arm is also provided on the connecting shaft 902, and a pull rod 11 is hingedly connected to the free end of the crank arm, and the pull rod 11 is hingedly connected to the driving ring 10, so that the regulating guide vane 9 is controlled to rotate by the rotation of the driving ring 10; When the device described in the present application is in use, the large end of the air collecting hood is installed on the wall of the chicken house, and the air collecting hood needs to include all negative pressure exhaust fans, so as to ensure that all the airflow discharged by the negative pressure exhaust fans can be recovered; During the operation of the chicken house, cold air is input into the chicken house through the wet curtain system. Due to the large length of the chicken house, a negative pressure exhaust fan must be equipped to discharge the hot air flow through the exhaust port; the high-speed airflow discharged by the negative pressure exhaust fan all enters the wind collecting hood. Since the outlet end of the wind collecting hood is reduced by the wind collecting wall, the airflow passing through the outlet end will be accelerated for the first time, and then the airflow enters the volute, and finally enters the equipment cavity from the air inlet. The flow rate and direction of the airflow in the air inlet can be controlled by the adjustment module, that is, the flow area of ​​each airflow channel in the air inlet is adjusted by the adjustment module to form a gradually reduced airflow channel, which will perform secondary acceleration on the airflow and adjust the airflow direction at the same time. The airflow after passing through the air inlet collides with the driving wind wheel, thereby driving the driving wind wheel to rotate, and the driving wind wheel drives the power generation module to generate electricity. The airflow after passing through the driving wind wheel is directly discharged into the atmospheric environment from the exhaust port at the bottom; Reference Fig. 9 and Fig.10 , which disclosed the corresponding driving wind wheel speed diagram and power generation power diagram. As shown in the figure, under the test conditions, the driving wind wheel blade speed reaches 725RPM and can stably generate 270W of electricity.

[0033] The present application realizes wind power generation through the cooperation of wind collecting hood, volute and driving wind wheel and other equipment. Compared with the technical solution of direct emptying in the prior art, the present application realizes the secondary recycling of wind energy. The recycled electricity can be used to drive various electrical equipment, thereby reducing the operating energy consumption of the chicken house and also reducing the operating cost of the chicken house. Secondly, the wind-gathering wall and the volute are fully enclosed structures, so air leakage can be effectively avoided during operation, and the utilization rate of high-speed airflow can be increased as much as possible, thereby improving the recovery rate of wind energy; At the same time, since the negative pressure exhaust fan needs to operate stably for a long time, the entire wind energy recovery system can receive airflow with a stable flow rate for a long time, thereby continuously outputting current in a stable state. Compared with the method of using natural wind to generate electricity, its power output is more stable.

[0034] Finally, the present application achieves double acceleration of the airflow through the combined action of the wind-collecting wall, the volute and the regulating module, thereby avoiding the rapid decrease of the airflow at the outlet of the negative pressure exhaust fan, and at the same time ensuring that the airflow can drive the wind wheel to rotate with a higher airflow, thereby realizing the recovery and utilization of wind energy; At the same time, the volute can also guide the airflow to enter the equipment cavity in an orderly manner around the axis of the driving wind wheel. At the same time, the airflow directions at different positions can push the driving wind energy to rotate counterclockwise or clockwise. On the one hand, it realizes the full utilization of wind force. On the other hand, multiple wind forces can push the driving wind wheel to rotate in the same direction, that is, avoiding the opposite airflow directions causing the thrust to offset each other, which helps to increase the thrust on the driving wind wheel.

[0035] The above are only preferred embodiments of the present application, and are not intended to limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made using the contents of the present application specification and drawings, or directly or indirectly applied in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A wind energy recovery system for a closed chicken house, characterized in that: It comprises a power generation module (1); An air collecting hood (2), wherein the inlet end of the air collecting hood (2) is connected to the air outlet of the negative pressure exhaust fan of the chicken house; the air collecting hood (2) is also provided with an air collecting wall (3) for reducing the flow area of ​​the air outlet end thereof; a volute (4), wherein the inlet end of the volute (4) is connected to the air outlet end of the wind collecting cover (2); a cylindrical equipment cavity (5) is provided on the volute (4), a driving wind wheel (6) is rotatably provided in the equipment cavity (5), and the driving wind wheel (6) is dynamically connected to the power generation module (1); an air inlet (7) connected to the equipment cavity (5) is provided on the volute (4), and an air outlet (8) is provided at the bottom of the equipment cavity (5); A regulating module, wherein the regulating module is arranged on the volute (4), and the regulating module is used to control the airflow direction and airflow velocity in the air inlet (7).

2. A wind energy recovery system for a closed chicken house according to claim 1, characterized in that: The wind collecting hood (2) comprises an air inlet section (201) and an air outlet section (202); along the air flow direction, the wind collecting wall (3) is arranged between the air inlet section (201) and the air outlet section (202); the wind collecting wall (3) is in a conical structure, with its large end being connected to the air inlet section (201) and its small end being connected to the air outlet section (202).

3. The wind energy recovery system for a closed chicken house according to claim 1, characterized in that: The driving wind wheel (6) comprises a main shaft (601) and a plurality of blades (602); one end of the main shaft (601) is dynamically connected to the power generation module (1); and each of the blades (602) is connected to the main shaft (601) around the axis of the main shaft (601).

4. A wind energy recovery system for a closed chicken house according to claim 3, characterized in that: A hub (603) is also provided on the main shaft (601), and a plurality of plug-in tenons (604) are provided on the outer peripheral surface of the hub (603) around the axis of the hub (603). A plug-in tenon plate (605) is also integrally connected to one side of each of the blades (602) along the width direction of each of the blades (602), and the plug-in tenon plate (605) is plug-connected to the plug-in tenon groove (604); a plurality of fastening bolts (606) are also provided between each of the plug-in tenon plates (605) and the hub (603).

5. The wind energy recovery system for a closed chicken house according to claim 3, characterized in that: The regulating module comprises a plurality of regulating guide vanes (9) which are evenly arranged in the air inlet (7) around the rotation axis of the main shaft (601), and each of the regulating guide vanes (9) is respectively connected to the volute (4) for rotation; a driving ring (10) and a driving module are also provided on the volute (4), and the driving module controls the driving ring (10) to rotate around the rotation axis of the main shaft (601); a plurality of pull rods (11) are hinged on the driving ring (10), and each of the pull rods (11) is respectively connected to the regulating guide vane (9) for rotation.

6. A wind energy recovery system for a closed chicken house according to claim 5, characterized in that: The volute (4) is provided with a circular slide rail (12) coaxial with the main shaft (601), and the circular slide rail (12) is provided with a plurality of sliders (13), and each of the sliders (13) is connected to the drive ring (10) respectively.

7. The wind energy recovery system for a closed chicken house according to claim 5, characterized in that: The regulating guide vane (9) comprises a guide vane body (901), the cross section of the guide vane body (901) is in the shape of an arc, and along the height direction of the guide vane body (901), the top and bottom of the guide vane body (901) are provided with connecting shafts (902), and a crank arm is also provided on the rotating shaft located at the top of the guide vane body (901), and the crank arm is hingedly connected to the pull rod (11).

8. The wind energy recovery system for a closed chicken house according to claim 7, characterized in that: Along the height direction of the guide vane body (901), the two connecting axes (902) both coincide with the symmetry axis of the guide vane body (901).

9. The wind energy recovery system for a closed chicken house according to claim 3, characterized in that: The driving module comprises a plurality of driving cylinders (14), each of the driving cylinders (14) being evenly arranged around the rotation axis of the main shaft (601), one end of each of the driving cylinders (14) being rotationally connected to the volute (4), and an output end thereof being rotationally connected to the driving ring (10).

10. The wind energy recovery system for a closed chicken house according to claim 1, characterized in that: The power generation module (1) comprises a generator, a storage battery and an inverter, and the output end of the generator is electrically connected to the storage battery via the inverter.

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