Coaxial dual-channel rotary wind tower wind catcher and wind catching method

Abstract

The present invention discloses a coaxial dual-channel rotary wind tower wind catcher and a wind catching method, wherein the coaxial dual-channel rotary wind tower wind catcher includes a rotary wind catcher and a heat exchange pipe, the heat exchange pipe includes a coaxially arranged inner pipe and outer pipe, an air inlet channel is formed between the inner pipe and the outer pipe, and the inner cavity of the inner pipe serves as an air outlet channel; the rotary wind catcher is rotatably arranged above the heat exchange pipe, and includes a wind catching frame, an air outlet pipe, and a tail wing. An air inlet for communicating with the air inlet channel is provided on the side of the wind catching frame, the tail wing and the air inlet are arranged relative to each other, the axis of the air outlet pipe coincides with the axis of the inner pipe, the upper end of the air outlet pipe extends to the outside of the wind catching frame, and the lower end is connected to the inner pipe. The coaxial dual-channel rotary wind tower wind catcher and the wind catching method disclosed by the present invention ensure that the air flow and flow rate inside the air inlet channel and the inner pipe are not affected by the wind direction, thereby ensuring maximum ventilation efficiency in an unstable environment and ensuring a stable air intake volume.

Description

Technical Field

[0001] The present invention relates to the technical field of wind energy utilization, and in particular to a coaxial dual-channel rotary wind tower wind catcher and a wind catching method. Background Art

[0002] As one of the passive ventilation technologies, the wind catcher has a principle similar to that of a traditional wind tower. It adopts a longitudinal ventilation structure and uses the combined effect of wind pressure and thermal pressure to enhance the ventilation effect and form a strong convection. Since the wind speed at high altitudes is generally greater than the wind speed on the ground, it can capture the air at higher altitudes and introduce them into the room, forming indoor air flow and cooling the ventilation facilities.

[0003] Traditional wind catchers are typically integrated into the building, with openings on all four sides designed to capture wind from different directions. These openings are angled like rain shutters. Inside, four thin partitions divide the wind catcher into four equal sections, each with a right-angled isosceles triangle cross-section. Each section serves as the windward side to bring in fresh air from outside, and as the leeward side to exhaust indoor air. Because the number and location of air inlets and outlets change dynamically with wind direction, the disparity between the total inlet and outlet areas leads to localized high air velocity, increased system resistance, and significant wind direction-dependent ventilation, making it difficult to maintain a stable airflow and volume. Summary of the Invention

[0004] The invention discloses a coaxial double-channel rotary wind tower wind catcher and a wind catching method, so as to overcome the problem in the prior art that the ventilation volume of a fixed multi-directional wind tower is greatly affected by wind direction and is unstable.

[0005] To achieve the above objectives, the present invention provides the following technical solutions: a coaxial dual-channel rotary wind tower wind catcher, comprising a rotary wind catcher and a heat exchange pipe, wherein the heat exchange pipe comprises a coaxially arranged inner pipe and outer pipe, an air inlet channel is formed between the inner and outer pipes, the air inlet channel is used to introduce outdoor fresh air, the inner pipe is used to exhaust indoor air, and the inner cavity of the inner pipe serves as an air outlet channel;

[0006] The rotating wind catcher is rotatably arranged above the heat exchange pipe. The rotating wind catcher includes a wind catcher frame, an air outlet pipe and a tail wing. The side of the wind catcher frame is provided with an air inlet for communicating with the air inlet channel. The tail wing and the air inlet are arranged opposite to each other. The tail wing is used to push the rotating wind catcher to rotate. The axis of the air outlet pipe coincides with the axis of the inner pipe. The upper end of the air outlet pipe extends to the outside of the wind catcher frame, and the lower end is connected to the inner pipe.

[0007] Furthermore, the air inlet end of the air inlet is provided with a flare, the inner diameter of the flare gradually decreases along the air inlet direction, and the inner diameter of the smaller end of the flare is equal to the inner diameter of the air inlet.

[0008] Furthermore, the outlet end of the air outlet pipe is arranged as an oblique opening, and the oblique opening and the air inlet are arranged in back-to-back directions.

[0009] Furthermore, the opening angle of the flared opening is 20-30°.

[0010] Furthermore, the inclination angle of the bevel is 30-50°.

[0011] Furthermore, the rotating wind catcher and the heat exchange pipe are rotatably connected via a bearing.

[0012] Furthermore, it also includes any one of a heat pipe, a spray device, a heat collecting plate or a heat exchange fin;

[0013] The heat pipe is horizontally arranged in the heat exchange pipe, and part of the heat pipe is located inside the inner pipe and part of the heat pipe is located inside the air inlet channel;

[0014] The spray device can cool the introduced air, and the spray device includes a spray pipe fixedly arranged at the inlet of the air inlet channel, and a plurality of spray heads are evenly arranged on the spray pipe, and the spray pipe is connected to a water source through a water pipe;

[0015] The heat collecting plate is used to heat the introduced air;

[0016] The heat exchange fins are partially located inside the air outlet channel and partially located inside the air inlet channel. The heat exchange fins are used to transfer heat from the exhaust air to the incoming air.

[0017] Furthermore, there are multiple heat exchange fins, which are connected end to end to form a sawtooth space, which is connected to the inner tube. The upper end of the sawtooth space is fixed with an upper sealing plate, and the lower end is fixed with a lower sealing plate.

[0018] Furthermore, the heat collecting plate is arranged in the air inlet channel, and the outer tube is transparent.

[0019] To achieve the above object, the present invention further provides the following technical solution: a wind catching method using the coaxial dual-channel rotary wind tower wind catcher comprises the following steps:

[0020] S1: Fresh air blows towards the wind catcher, and the rotating wind catcher rotates so that the air inlet stays in the windward direction, and the air enters the air inlet channel;

[0021] S2: The air entering the air inlet channel circulates in the ventilation facility and is sucked out from the top of the inner pipe under negative pressure and discharged from the wind catcher.

[0022] In summary, the present invention has the following beneficial effects:

[0023] The coaxially arranged inner and outer tubes separate the air inlet and outlet channels. Fixed inlet and outlet ducts ensure that air flow and volume within the inlet and inner tubes are unaffected by wind direction, providing a stable airflow and volume for subsequent installation of various passive technologies. A rotating wind catcher, driven by wind, ensures that the air inlet is always facing the windward direction, ensuring maximum ventilation efficiency and stable airflow in unstable environments. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following is a brief introduction to the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0025] Figure 1 This is a schematic diagram of the overall structure of the coaxial dual-channel rotary wind tower wind catcher disclosed in Example 1 of the present invention;

[0026] Figure 2 This is a schematic structural diagram of the heat exchange pipeline disclosed in Example 1 of the present invention;

[0027] Figure 3 This is a front view of the heat exchange pipe disclosed in Example 2 of the present invention;

[0028] Figure 4 for Figure 3 AA section view in the figure;

[0029] Figure 5 This is a schematic structural diagram of the heat exchange pipeline disclosed in Example 3 of the present invention;

[0030] Figure 6 This is a schematic structural diagram of the heat exchange pipeline disclosed in Example 4 of the present invention;

[0031] Figure 7 This is a bottom view of the heat exchange pipe disclosed in Example 5 of the present invention;

[0032] Figure 8 A partial cross-sectional view of the heat exchange pipe disclosed in Example 6 of the present invention;

[0033] Figure 9 This is a bottom view of the heat exchange pipe disclosed in Example 6 of the present invention.

[0034] In the figure: 1. heat exchange pipe; 11. inner pipe; 111. curved plate; 112. straight plate; 12. outer pipe; 2. rotating wind catcher; 21. wind catcher frame; 211. air inlet; 212. through hole; 213. flared opening; 22. air outlet pipe; 221. oblique opening; 23. tail wing; 231. horizontal plate; 232. vertical plate; 3. air inlet channel; 31. first air duct; 32. second air duct; 4. air outlet channel; 41. air outlet duct; 5. bearing; 6. block; 7. heat pipe; 8. spray device; 9. heat collecting plate; 10. connecting plate; 20. heat exchange fins; 30. lower sealing plate. DETAILED DESCRIPTION

[0035] To make the purpose, technical solutions and advantages of the embodiments of the present invention clearer, the following will be combined with the appended drawings of the embodiments of the present invention. Figure 1-9 The technical solutions in the embodiments of the present invention are clearly and completely described. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] Example 1

[0037] Combine Figure 1 and Figure 2 A coaxial dual-channel rotary wind tower wind catcher includes a rotary wind catcher 2 and a heat exchange pipe 1, which is fixedly connected to the ventilation facility. The heat exchange pipe 1 includes a coaxially arranged inner tube 11 and outer tube 12. The inner and outer tubes 11 and 12 form an air inlet channel 3, which is used to introduce fresh air from outside the ventilation facility. The inner cavity of the inner tube 11 forms an air outlet channel 4, which is used to exhaust the air circulated within the ventilation facility.

[0038] The rotating wind catcher 2 is rotatably disposed at the upper end opening of the heat exchange pipe 1 . The rotating wind catcher 2 includes a wind catching frame 21 , an air outlet pipe 22 , and a tail wing 23 .

[0039] The wind-catching frame 21 has an air inlet 211 on its side and a through-hole 212 on its bottom. This through-hole 212 connects the wind-catching frame 21 to the air inlet duct 3, connecting the air inlet 211 to both the interior and exterior of the wind-catching frame 21. The air inlet 211 is rectangular, with a flare 213 integrally formed at its inlet end. The inner diameter of the flare 213 gradually decreases along the air flow direction, with the inner diameter of the smaller end of the flare 213 equal to the diameter of the air inlet 211. The ratio of the depth of the flare 213 to the depth of the air inlet 211 is 1:10. The flare 213 opens at an angle of 20-30°. Partially opening the flare 213 effectively increases the amount of air entering.

[0040] The air outlet pipe 22 and the wind catching frame 21 are integrally formed, the axis of the air outlet pipe 22 coincides with the axis of the inner tube 11, the upper end of the air outlet pipe 22 passes through the top wall of the wind catching frame 21 and extends to the outside of the wind catching frame 21, the air outlet is connected to the inner tube 11, the diameter of the air outlet pipe 22 is equal to the diameter of the inner tube 11, and the air outlet pipe 22 and the inner tube 11 as well as the wind catching frame 21 and the outer tube 12 are all connected by bearings 5.

[0041] The outlet end of the air outlet duct 22 is configured as an oblique opening 221. A 30° angle between the oblique opening 221 and the horizontal plane effectively increases exhaust volume, with a 50° angle achieving optimal results. The oblique opening 221 and the air inlet 211 are arranged in opposite directions, ensuring that the outlet of the air outlet duct 22 is always on the leeward side. The air flow rate on the leeward side is lower than that on the windward side, resulting in a negative pressure at the outlet of the air outlet duct 22.

[0042] The tail fin 23 is positioned opposite the air inlet 211 and comprises a horizontal plate 231 and a vertical plate 232. The horizontal plate 231 and the vertical plate 232 are integrally formed into a convex shape, and the horizontal plate 231 is welded to the wind-catching frame 21. The tail fin 23, in response to wind force, rotates the rotating wind catcher 2, thereby keeping the air inlet 211 facing the wind, ensuring maximum ventilation efficiency in unstable ambient wind conditions.

[0043] The wind catching method using the coaxial dual-channel rotary wind tower wind catcher of this embodiment includes the following steps:

[0044] S1: Fresh air blows toward the wind catcher, and the tail wing 23 is driven by the wind to rotate the rotating wind catcher 2, so that the air inlet 211 stays in the windward direction, the air outlet of the air outlet pipe 22 stays in the leeward direction, and the air enters the air inlet channel 3;

[0045] S2: The air entering the air inlet channel 3 circulates in the ventilation facility and is sucked out from the top by negative pressure through the inner pipe 11 and discharged from the wind catcher.

[0046] The ventilation capacity of this wind catcher is approximately 170% of that of a traditional fixed eight-way wind catcher of the same size. The ventilation capacity is not affected by wind direction.

[0047] Example 2

[0048] The only difference from Example 1 is that Figure 3 and Figure 4 The inner tube 11 is composed of two oppositely disposed arc-shaped plates 111 and two oppositely disposed straight plates 112. The arc-shaped plates 111 and the straight plates 112 are connected end to end to form a closed area.

[0049] Two oppositely arranged blocking blocks 6 are provided in the air inlet channel 3. The blocking blocks 6 are provided with an arc surface and a straight surface. The arc surface is fitted and fixedly connected to the inner wall of the outer tube 12, and the straight surface is fitted and fixedly connected to the straight plate 112 of the inner tube 11. Under the action of the two blocking blocks 6, the interior of the air inlet channel 3 is divided into a heat pipe 7 area and a non-heat pipe 7 area. Several heat pipes 7 are installed in the heat pipe 7 area. The heat release section of the heat pipe 7 is located in the heat pipe 7 area of ​​the air inlet channel 3, and the heat absorption section of the heat pipe 7 extends to the inner tube 11.

[0050] The heat pipes 7 and the straight plates 112 are arranged in parallel, and several heat pipes 7 are evenly and horizontally fixed inside the heat exchange pipe 1. The flow direction of the gas in the heat exchange pipe 1 is perpendicular to the arrangement direction of the heat pipes 7, so that the cold and hot air in adjacent air ducts can exchange heat at the heat pipes 7.

[0051] It should be noted that the heat recovery efficiency of the heat pipes 7 depends on the number of heat pipes 7 and the density of their arrangement. In this application, 80 heat pipes 7 are taken as an example. 80 heat pipes 7 can recover more than 30% of the temperature difference, that is, 40% of the temperature difference between cold and hot air can be recovered into the fresh air for heating the cold air in winter and cooling the hot air in summer. Heat exchange between 20°C indoor air and 0° outdoor air can provide more than 6° of fresh air into the room. Increasing the number of heat pipes 7 can increase the heat recovery efficiency to 90%, but it will reduce the air flow rate. When applied to situations with large temperature differences between indoor and outdoor, more energy can be saved, and the number of heat pipes 7 can be increased as appropriate.

[0052] The wind catching method using the coaxial dual-channel rotary wind tower wind catcher of this embodiment includes the following steps:

[0053] S1: Fresh air blows toward the wind catcher, and the tail wing 23 is driven by the wind to rotate the rotating wind catcher 2, so that the air inlet 211 stays in the windward direction, the air outlet of the air outlet pipe 22 stays in the leeward direction, and the air enters the air inlet channel 3;

[0054] S2: The air entering the air inlet channel 3 passes through the heat pipe 7 and enters the ventilation facility for circulation. Then, it passes through the inner tube 11 and the heat pipe 7 inside the inner tube 11 and is sucked out from the top under negative pressure and discharged from the wind catcher.

[0055] Since there is a certain temperature difference between the gas in the air inlet channel 3 and the inner tube 11, in winter, the outdoor cold air flows in through the air inlet 211 and enters the outer air inlet channel 3, and the indoor hot air enters the inner tube 11 through the indoor air outlet. The cold and hot air exchange heat at the heat pipe 7, and the cold air and the hot air flow in opposite directions in adjacent air ducts, which has a high heat exchange efficiency. The heat pipe 7 has a strong heat exchange capacity and a small loss of fluid pressure, which can ensure heat exchange efficiency while maintaining sufficient ventilation. It reduces the demand for heating energy while ensuring the supply of fresh air. In summer, on the contrary, the indoor cold air exchanges with the outdoor hot air when it is discharged, thereby reducing the demand for cooling energy.

[0056] Example 3

[0057] The only difference from Example 1 is that Figure 5 The coaxial dual-channel rotary wind tower wind catcher also includes a spray device 8, which is arranged at the connection point between the wind catching frame 21 and the air inlet channel 3. The spray device 8 includes a spray tube attached to the inner wall of the outer tube 12, and a number of spray heads are evenly arranged on the spray tube. The spray tube is connected to a water source through a water pipe. The water source can be a municipal water supply source or a water pump water supply source. The specific one can be selected according to the actual situation. The spray tube is fixed at the opening at the upper end of the outer tube 12, so that the area of ​​the spray head spraying the spray covers the air inlet area of ​​the captured fresh air, which facilitates the spray device 8 to realize the cooling of the captured fresh air. After the fresh air flows in through the air inlet 211, it enters the outer air inlet channel 3. The water mist sprayed in the outer air inlet channel evaporates rapidly. The liquid water absorbs heat after rapid evaporation, and the cooled air is sent into the room after cooling the fresh air. After circulation, it is discharged into the room.

[0058] Example 4

[0059] The only difference from Example 1 is that Figure 6 The coaxial dual-channel rotary wind tower wind catcher also includes a heat collecting plate 9, made of a 0.1mm thick thin metal plate. A first air duct 31 is formed between the heat collecting plate 9 and the inner wall of the outer tube 12, and a second air duct 32 is formed between the heat collecting plate 9 and the outer wall of the inner tube 11. These ducts evenly divide the air in the air inlet channel 3 into two paths, allowing both air to enter the ventilation facility. The outer tube 12 is made of a transparent material and is mounted on the exterior of the heat collecting plate 9, allowing sunlight to pass through and directly illuminate the heat collecting plate 9.

[0060] A number of connecting plates 10 are evenly arranged on the heat collecting plate 9. The connecting plates 10 are made of the same material as the heat collecting plate 9. The extended surfaces of the plate surfaces of the several connecting plates 10 can intersect in a straight line. The straight line coincides with the axis of the inner tube 11. One side of the connecting plate 10 is fixedly connected to the outer wall of the inner tube 11, and the other side passes through the heat collecting plate 9 and is fixedly connected to the inner wall of the outer tube 12. The heat collecting plate 9 is fixed to the inside of the air inlet channel 3 through the connecting plate 10.

[0061] The surfaces of the heat collecting plates 9 and the connecting plates 10 are coated with a heat absorbing layer, which can enhance the adsorption capacity of the solar tubes and improve the efficiency of solar energy utilization.

[0062] Fresh air flows in through air inlet 211 and enters outer air inlet duct 3. Solar radiation passes through transparent outer tube 12 and strikes heat collector plate 9, which is coated with a heat-absorbing layer. The heat collector plate 9 heats up and releases heat into the air inlet duct through convection. This heats the air in both directions within the air inlet duct, heating the fresh air. The heated fresh air is then delivered into the room and, after circulating, exhausted.

[0063] Example 5

[0064] The only difference from Example 1 is that Figure 7 The coaxial dual-channel rotary wind tower wind catcher also includes a plurality of heat exchange fins 20, which are rectangular metal plates and are vertically arranged inside the heat exchange pipe 1. One side of each of the heat exchange fins 20 intersects in a straight line that coincides with the axis of the inner tube 11. The other side of each heat exchange fin 20 extends through the inner tube 11 into the air inlet duct 3 and is fixedly connected to the inner wall of the outer tube 12. The space between adjacent heat exchange fins 20 forms an isosceles right triangle, with the vertex of the isosceles triangle coinciding with the center of the inner tube 11. This ensures that the heat exchange fins 20 do not hinder the flow of air in the air inlet duct 3 and the inner tube 11.

[0065] This wind catcher is installed on a stove. In winter, cold outdoor air flows in through air inlet 211 and into outer air inlet duct 3. Hot air generated by the stove flows upward into inner tube 11 due to buoyancy. The hot and cold air, with their high temperature difference, exchange heat at heat exchange fins 20. The cold and hot air flow in opposite directions within adjacent ducts, resulting in high heat exchange efficiency. This ensures sufficient ventilation while heating the incoming air. This ensures a supply of fresh air during stove operation while effectively utilizing waste heat to raise indoor temperatures. This ensures fresh air delivery while preventing exhaust backflow, and recovers heat from high-temperature exhaust gas to heat the incoming air, improving indoor comfort.

[0066] Example 6

[0067] The difference from Example 5 is that, Figure 8 and Figure 9 Multiple groups of heat exchange fins 20 are arranged, with two heat exchange fins 20 forming a group. These groups are connected end to end to form a ring. The two heat exchange fins 20 in each group form a V-shaped air outlet duct 41. The multiple V-shaped air outlet ducts 41 are interconnected to form a zigzag-shaped air outlet duct 4. The zigzag-shaped air outlet duct 4 and the inner tube 11 are connected to form the entire air outlet duct 4. An air inlet duct 3 is formed between the heat exchange fins 20 and the outer tube 12. This air inlet duct 3 is used to introduce fresh air from outside the ventilation facility.

[0068] The inner tube 11 consists of two parts, one part is located above the zigzag air outlet channel 4, and the other part is located below the zigzag air outlet channel 4. An upper sealing plate is fixedly provided at the upper end of the zigzag air outlet channel 4, and an upper through-hole is opened at the center of the upper sealing plate. The lower end of the upper inner tube 11 is inserted into the upper through-hole; a lower sealing plate 30 is fixedly provided at the lower end of the zigzag air outlet channel 4, and a lower through-hole is opened at the center of the lower sealing plate 30. The upper end of the lower inner tube 11 is inserted into the lower through-hole. Under the action of the upper sealing plate and the lower sealing plate 30, the cold air and the hot air flow in opposite directions in adjacent air ducts without interfering with each other.

[0069] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A coaxial dual-channel rotary wind tower wind catcher, characterized in that: The invention comprises a rotating wind catcher (2) and a heat exchange pipe (1), wherein the heat exchange pipe (1) comprises an inner pipe (11) and an outer pipe (12) arranged coaxially, an air inlet channel (3) is formed between the inner pipe (11) and the outer pipe (12), and the inner cavity of the inner pipe (11) serves as an air outlet channel (4); The rotating wind catcher (2) is rotatably arranged above the heat exchange pipe (1), and the rotating wind catcher (2) includes a wind catcher frame (21), an air outlet pipe (22), and a tail wing (23). An air inlet (211) for communicating with the air inlet channel (3) is provided on the side of the wind catcher frame (21), and the tail wing (23) and the air inlet (211) are arranged relative to each other. The tail wing (23) is used to push the rotating wind catcher (2) to rotate, and the axis of the air outlet pipe (22) coincides with the axis of the inner pipe (11). The upper end of the air outlet pipe (22) extends to the outside of the wind catcher frame (21), and the lower end is communicated with the inner pipe (11); The heat exchange fin (20) is also included, wherein the heat exchange fin (20) is partially located inside the air outlet channel (4) and partially located inside the air inlet channel (3), and the heat exchange fin (20) is used to transfer the heat of the exhaust air to the incoming air; the heat exchange fin (20) is multiple, and the multiple heat exchange fins (20) are connected end to end to form a sawtooth-shaped space, the sawtooth-shaped space is connected to the inner tube (11), and the upper end of the sawtooth-shaped space is fixedly provided with an upper sealing plate, and the lower end of the sawtooth-shaped space is fixedly provided with a lower sealing plate (30); Two heat exchange fins form a group, and multiple groups of heat exchange fins are provided. The multiple groups of heat exchange fins are connected end to end to form a ring. The two heat exchange fins in each group form a V-shaped air outlet duct. The multiple V-shaped air outlet ducts are interconnected to form a zigzag air outlet channel; the zigzag air outlet channel and the inner tube are connected to form the entire air outlet channel; an air inlet channel is formed between the heat exchange fins and the outer tube.

2. The coaxial dual-channel rotary wind tower wind catcher according to claim 1, characterized in that: The air inlet end of the air inlet (211) is provided with a flare (213), the inner diameter of the flare (213) gradually decreases along the air inlet direction, and the inner diameter of the smaller end of the flare (213) is equal to the inner diameter of the air inlet (211).

3. The coaxial dual-channel rotary wind tower wind catcher according to claim 1, characterized in that: The outlet end of the air outlet pipe (22) is configured as an oblique opening (221), and the oblique opening (221) and the air inlet (211) are arranged in back-to-back orientation.

4. The coaxial dual-channel rotary wind tower wind catcher according to claim 2, characterized in that: The opening angle of the flared opening (213) is 20-30°.

5. The coaxial dual-channel rotary wind tower wind catcher according to claim 3, characterized in that: The inclination angle of the oblique opening (221) is 30-50°.

6. The coaxial dual-channel rotary wind tower wind catcher according to claim 1, characterized in that: The rotating wind catcher (2) and the heat exchange pipe (1) are rotatably connected via a bearing (5).

7. A method for catching wind using the coaxial dual-channel rotary wind tower wind catcher according to any one of claims 1 to 6, characterized in that: The steps include: S1: fresh air blows toward the rotating wind catcher (2), and the rotating wind catcher (2) rotates so that the air inlet (211) stays in the windward direction, and the air enters the air inlet channel (3); S2: The air entering the air inlet channel (3) circulates in the ventilation facility and is sucked out from the top by the inner pipe (11) under negative pressure and discharged from the rotating wind catcher (2).

Images