Wind-driven axial flow air compressor, wind sail integrated system and automatic control method

Abstract

The application discloses a wind-driven axial flow air compressor, a sail integrated system and an automatic control method. Two-stage wind blades are designed according to specific wind fields of a gas collecting system, air flow is guided between a stator and a rotor of the compressor while providing driving force of the compressor, integrated aerodynamic power design of the fan and the compressor is realized, more extensive natural wind power conditions can be adapted, especially the compressor can work under smaller wind power, and annual wind power utilization rate is improved. Low-pressure compressed air required by general industrial control can be obtained through the wind-driven compressor, and the technical problem of low wind energy utilization rate caused by a split structure that a wind motor is connected with a traditional air compressor through a shaft coupling is solved.

Description

Technical Field

[0001] This application relates to the field of wind power technology, and in particular to a wind-driven axial air compressor, a sail-type integrated system, and an automatic control method. Background Technology

[0002] The compressors all operate by providing electrical energy, which is costly and energy-intensive in actual use.

[0003] Currently, there are no products on the market that use wind power to drive air compressors. There are only patents that connect the fan motor to the traditional air compressor using a coupling, but there are no actual products. The split structure leads to the technical problem of low wind energy utilization. Summary of the Invention

[0004] This application provides a wind-driven axial air compressor, a sail-type integrated system, and an automatic control method, which solves the technical problem that there are currently no related products on the market that drive air compressors with wind power, and that only the fan motor is connected to the traditional air compressor with a coupling, resulting in low wind energy utilization due to the split structure.

[0005] In view of this, the first aspect of this application provides a wind-driven axial flow air compressor, comprising:

[0006] Turbine fans, compound turbofan fans, compressors, and air collection systems;

[0007] The turbine fan is fixedly connected to the rotor of the compressor on the same axis;

[0008] The composite turbofan fan is coaxially connected between the rotor of the turbine fan and the rotor of the compressor;

[0009] The air collection system is fixedly connected to the casing of the compressor along the angle of the composite blades of the composite turbofan fan;

[0010] The compressor stator has an air outlet on its side.

[0011] The compressor stator has a first air outlet on the first end side, and a first one-way valve is provided in the first air outlet.

[0012] The compressor stator has a second air outlet on the second end side, and a second one-way valve is provided in the second air outlet.

[0013] Optionally, the compression ratio of the compressor is 1:3.

[0014] Optionally, the compressor assembly employs adjustable stator blade technology.

[0015] A second aspect of this application provides a sail-type integrated system, the system comprising:

[0016] At least one wind-driven axial air compressor, windmill, and air compressor station as described in any one of the first aspects of this application;

[0017] The wind-driven axial air compressor is fixedly mounted on the first structural grid frame;

[0018] The sails are symmetrically arranged on both sides of the wind-driven axial air compressor and are fixedly mounted on the second structural grid.

[0019] The first structural space frame and the second structural space frame are connected to the top of the air compressor station through support members;

[0020] The air outlet of the wind-driven axial air compressor is located at the center of the bottom of the platform, and is connected to the air inlet of the air compressor station via a rotary joint and a main outlet.

[0021] Optionally, the first structural space frame and the second structural space frame are installed in a modular, cumulative manner.

[0022] Optionally, the support components include a base, a rotating support, a roller assembly, and a wind direction adjustment motor;

[0023] The first structural space frame and the second structural space frame are fixedly installed on the support platform;

[0024] The support platform is movably connected to the rotating support via a roller assembly;

[0025] The rotating support is fixedly connected to the top of the air compressor station;

[0026] The wind direction adjustment motor is located on the top of the air compressor station, and the power output end of the wind direction adjustment motor is connected to the support platform through a reduction gear set.

[0027] Optionally, the sail is a liftable structure.

[0028] A third aspect of this application provides an automatic control method for a wind-driven axial flow air compressor, applied to the wind-driven axial flow air compressor described in any one of the first or second aspects of this application, comprising:

[0029] The air pressure entering the air-driven axial flow air compressor is detected, and the working state of the air-driven axial flow air compressor is switched according to the air pressure. The working state is divided into a first working state, a second working state, and a third working state.

[0030] If the wind pressure is lower than the first preset threshold, the wind-driven axial air compressor switches to the first working state, and the compressor of the wind-driven axial air compressor does not output compressed air.

[0031] If the wind pressure is higher than the first preset threshold but lower than the second preset threshold, the wind-driven axial air compressor switches to the second working state, the first one-way valve of the first outlet of the wind-driven axial air compressor is closed, and the second one-way valve of the second outlet of the wind-driven axial air compressor is opened.

[0032] If the wind pressure is higher than the second preset threshold, the wind-driven axial air compressor switches to the third working state, and the first and second check valves of the first and second air outlets of the wind-driven axial air compressor open.

[0033] As can be seen from the above technical solutions, the embodiments of this application have the following advantages:

[0034] This application provides a wind-driven axial air compressor, a sail-type integrated system, and an automatic control method. Based on a two-stage fan blade design tailored to the specific wind field formed after natural wind passes through an air collection system, the system provides driving force to the compressor while guiding airflow between the compressor's stator and rotor. This achieves an integrated aerodynamic design of the fan and compressor, adaptable to a wider range of natural wind conditions, especially operating in lower wind speeds, thus improving annual wind power utilization. The wind-driven compressor can provide low-pressure compressed air for general industrial control needs and can be used in industrial and mining enterprises. Air compressor stations are major electricity consumers in industrial and mining enterprises, often accounting for 25% of total electricity consumption. The zero-carbon air compressor station built using this solution will significantly reduce carbon emissions and generate energy benefits. If equipped with a compressed air generator system, it can also be used for wind power generation. Since compressed air is easy to store, it allows for flexibility in the timing of wind storage and power generation. This solution addresses the current market lack of wind-driven air compressor products, where only fan motors are connected to traditional air compressors via couplings, resulting in low wind energy utilization due to the split structure. Attached Figure Description

[0035] Figure 1 This is a cross-sectional structural diagram of a wind-driven axial flow air compressor according to an embodiment of this application;

[0036] Figure 2 This is a three-dimensional structural diagram of a wind-driven axial flow air compressor according to an embodiment of this application;

[0037] Figure 3 This is a schematic diagram of the composite fan blade structure;

[0038] Figure 4 This is a top-view view of the sail-type integrated system in the embodiments of this application;

[0039] Figure 5 This is a schematic diagram of the vertical structure of the sail-type integrated system in the embodiments of this application;

[0040] The attached figures are labeled as follows:

[0041] 1. Turbine fan; 2. Compound turbofan fan; 3. Air collection system; 4. Stator; 5. First check valve; 6. First outlet; 7. Second check valve; 8. Second outlet; 9. Second structural frame; 10. First structural frame; 11. Support platform; 12. Roller assembly; 13. Reduction gear assembly; 14. Air direction adjustment motor; 15. Main outlet; 16. Rotary joint; 17. Rotor; 18. Compressor. Detailed Implementation

[0042] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0043] This application designs a wind-driven axial flow air compressor, a sail-type integrated system, and a control method, which solves the technical problem that there are currently no related products on the market that drive air compressors with wind power, and that only the fan motor is connected to the traditional air compressor with a coupling, resulting in low wind energy utilization due to the split structure.

[0044] For easier understanding, please refer to Figure 1 and Figure 2 , Figure 1 This is a cross-sectional structural diagram of a wind-driven axial air compressor according to an embodiment of this application. Figure 2 This is a three-dimensional structural diagram of a wind-driven axial flow air compressor according to an embodiment of this application, as shown below. Figure 1 and Figure 2 As shown, specifically:

[0045] Turbine fan 1, compound turbo fan 2, compressor 18 and air collection system 3;

[0046] The rotor 17 of the turbine fan 1 and the compressor 18 are coaxially and fixedly connected.

[0047] The composite turbofan fan 2 is coaxially connected between the turbine fan 1 and the rotor 17 of the compressor 18;

[0048] The air collection system 3 is fixedly connected to the casing of the compressor 18 along the angle of the composite blades of the composite turbofan fan 2;

[0049] The stator 4 of the compressor 18 has an air outlet on its side.

[0050] It should be noted that, Figure 3This is a schematic diagram of the composite fan blade structure;

[0051] Conventional fans are designed to only consider wind force perpendicular to the direction of blade rotation. However, the air collection system provided in this application collects air through an air collection hood, and the final airflow is directed between the stator 4 and rotor 17 of the compressor 18.

[0052] The airflow perpendicular to the air collection system can be divided into three categories, such as... Figure 1 As shown, this technology features a specially designed wind-powered utilization system based on these three types of wind:

[0053] like Figure 1 As shown, Class 1 wind is the wind within the diameter range of the rotor 17 and the center of the main unit's front side, which needs to be guided radially outward between the stator and rotor 17. A right-hand rotating turbine fan 1 is designed for this type of wind, which, in addition to providing driving force, also changes the airflow direction to the required position and direction of the compressor 18.

[0054] like Figure 1 and 5 As shown, type 2 wind is the wind directly in front of the air inlet of compressor 18, which passes through area a of the composite fan blade. This area has an angle of inclination with the wind direction. The wind direction remains unchanged, but the wind speed is reduced, generating a rotational driving force.

[0055] like Figure 1 and 5 As shown, Category 3 wind is wind whose direction is changed by the air collection system 3, forming a strong radial flow of gas at the bottom of the air collection hood. This gas first flows into region c of the composite fan blades, which is tilted at an angle to the direction of the Category 3 wind. In this region, the wind direction remains unchanged, but the wind speed decreases, generating a rotational driving force. Subsequently, the airflow moves to region b, which has a vortex fan blade shape, guiding the radial wind towards the axial direction and generating a rotational driving force. The composite fan blades are made of elastic steel. At high speeds, due to centrifugal force, the angle between the composite fan blades and the wind direction decreases, reducing the driving force, and the fan speed will not exceed the designed maximum speed (approximately 4000 rpm). Depending on the local annual average wind speed, the number of fan blades can be designed to be 4 to 12.

[0056] Furthermore, the stator 4 of the compressor 18 has a first air outlet 6 on its first end side, and a first one-way valve 5 is provided inside the first air outlet 6.

[0057] It should be noted that the first air outlet 6 is used for compressed air outlet when the wind force is high, which increases the operating range of the fan.

[0058] Furthermore, the stator 4 of the compressor 18 has a second air outlet 8 on the second end side, and a second one-way valve 7 is provided inside the second air outlet 8.

[0059] It should be noted that the second air outlet 8 is used in all operating conditions.

[0060] Furthermore, the compression ratio of compressor 18 is 1:3.

[0061] It should be noted that, based on the integrated design of the fan and axial compressor pneumatic power system, the compression ratio of compressor 18 is designed to be about 1:3. The designed compressor 18 is a specially made axial compressor with low starting torque and low operating torque.

[0062] Furthermore, the compressor 18 assembly adopts adjustable stator blade technology.

[0063] It should be noted that the adjustable stator blade technology is a mature existing technology and will not be elaborated here. The compressor 18 adopts the adjustable stator blade technology, which can further improve the range of natural wind force that the compressor 18 can adapt to.

[0064] Please see Figure 4 and Figure 5 , Figure 4 This is a top view of the sail-type integrated system in the embodiments of this application. Figure 5 This is a schematic diagram of the vertical structure of the sail-type integrated system in the embodiments of this application, as shown below. Figure 4 and Figure 5 As shown, specifically:

[0065] At least one wind-driven axial air compressor, windmill, and air compressor station according to any one of the first aspects of this application;

[0066] A wind-driven axial air compressor is fixedly installed on the first structural grid frame 10;

[0067] The sails are symmetrically arranged on both sides of the wind-driven axial air compressor and are fixedly installed on the second structural grid 9;

[0068] The first structural space frame 10 and the second structural space frame 9 are connected to the top of the air compressor station through support members.

[0069] Furthermore, the support components include a base 11, a rotating support, and a roller assembly 12;

[0070] The first structural space frame 10 and the second structural space frame 9 are fixedly installed on the top of the support platform 11;

[0071] The base 11 is movably connected to the rotating support via the roller assembly 12;

[0072] Furthermore, it also includes: wind direction adjustment motor 14;

[0073] The power output end of the wind direction adjustment motor 14 is connected to the support 11 through the reduction gear set 13.

[0074] The air outlet of the wind-driven axial air compressor is connected to the center of the bottom of the support platform, and is connected to the air inlet of the air compressor station through the rotary joint 16 and the main outlet 15 in sequence.

[0075] It should be noted that a natural wind height of at least 20 meters is required to minimize ground resistance. Therefore, a 20-meter-high steel structure workshop needs to be constructed for the installation of air compressor station equipment or air storage tanks. The workshop roof should be equipped with... Figure 5 The sail-shaped integrated system shown.

[0076] like Figure 4 As shown, a steel structure grid is set in approximately three equal parts along the circumference. The main unit and pipes are installed on the first structural grid 10 of the compressor 18. The other two directions are the second structural grid 9 on which the sails are set. The sails can be raised and lowered on the second structural grid 9 to expand the air collection area. In case of strong winds, the sails can be lowered to ensure safety.

[0077] The second structural space frame 9 can be stacked and installed in the height direction, using a modular steel structure, with one layer every 5m, such as... Figure 5 As shown. The space frame sits on a rotatable platform 11. The platform 11 has a dense set of rollers 12 around its circumference to restrict the vertical displacement of the platform 11. The wind direction adjustment motor 14 adjusts the overall direction of the space frame structure through a reduction gear set 13 to ensure that the sail and compressor 18 are always aligned with the natural wind direction.

[0078] Compressed air is delivered from the center of the support 11 to the air storage tank through the rotary joint 16.

[0079] Because of its modular structure, construction can be carried out layer by layer, with the bottom constructed first. This method is suitable for construction in harsh outdoor environments. After the steel structure is completed, the sails are raised last. This system can utilize wind power at a height of 25m to 50m above the ground.

[0080] It should be noted that, through the air collection system and two-stage fan blades, the air reaches the inlet of compressor 18 with a certain pressure P, which depends on the strength of the natural wind. Due to the limited driving force of the fan, a compression ratio of approximately 3:1 is sufficient for compressor 18, resulting in an output air pressure of 0.8MPa to 1.2MPa. This is also the air pressure Pz in the air storage system tank. Depending on the strength of the natural wind, compressor 18 automatically switches between the following operating conditions:

[0081] 1: P < 1 / 3Pz, the airflow is too weak, and compressor 18 does not output compressed air;

[0082] 2: 1 / 3Pz < P < Pz, the first outlet 6 is closed, all the air is compressed by the compressor 18, the air pressure exceeds the pressure of the air storage tank, and the air enters the air compressor station through the second one-way valve 7 and the second outlet 8.

[0083] 3: When P > Pz, the first air outlet 6 and the second air outlet 8 open simultaneously. Most of the air enters the air storage tank directly through the first one-way valve 5 and the first air outlet 6. The other part of the gas is compressed by the compressor 18 and then enters the air compressor station through the second one-way valve 7 and the second air outlet 8.

[0084] Because the inlet operating conditions vary greatly, compressor 18 adopts a stator with 4 adjustable blades.

[0085] This application provides a wind-driven axial air compressor, a sail-type integrated system, and an automatic control method. Based on a two-stage fan blade design tailored to the specific wind field formed after natural wind passes through the air collection system, the fan provides driving force to the compressor while guiding airflow between the compressor's stator and rotor. This achieves an integrated aerodynamic design of the fan and compressor, adaptable to a wider range of natural wind conditions, especially operating in lower wind speeds, thus improving annual wind power utilization. The wind-driven compressor can provide low-pressure compressed air for general industrial control needs, suitable for use in industrial and mining enterprises. Air compressor stations are major electricity consumers in industrial and mining enterprises, often accounting for 25% of total electricity consumption. The zero-carbon air compressor station built using this solution will significantly reduce carbon emissions and generate energy savings. If equipped with a compressed air generator system, it can also be used for wind power generation. Since compressed air is easy to store, it allows for flexibility in wind storage and power generation. This solution addresses the current market lack of wind-driven air compressor products, where only fan motors are connected to traditional air compressors via couplings, resulting in low wind energy utilization due to the split structure.

[0086] Those skilled in the art will clearly understand that, for the sake of convenience and brevity, the specific working processes of the systems, devices, and units described above can be referred to the corresponding processes in the foregoing method embodiments, and will not be repeated here.

[0087] The terms “first,” “second,” “third,” “fourth,” etc. (if present) in the specification and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that embodiments of the application described herein can be implemented, for example, in orders other than those illustrated or described herein. Furthermore, the terms “comprising” and “having,” and any variations thereof, are intended to cover a non-exclusive inclusion; for example, a process, method, system, product, or apparatus that comprises a series of steps or units is not necessarily limited to those steps or units explicitly listed, but may include other steps or units not explicitly listed or inherent to such processes, methods, products, or apparatus.

[0088] It should be understood that in this application, "at least one (item)" means one or more, and "more than" means two or more. "And / or" is used to describe the relationship between related objects, indicating that three relationships can exist. For example, "A and / or B" can represent three cases: only A exists, only B exists, and both A and B exist simultaneously, where A and B can be singular or plural. The character " / " generally indicates that the preceding and following related objects are in an "or" relationship. "At least one (item) of the following" or similar expressions refer to any combination of these items, including any combination of single or plural items. For example, at least one (item) of a, b, or c can represent: a, b, c, "a and b", "a and c", "b and c", or "a and b and c", where a, b, and c can be single or multiple.

[0089] The above-described embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of this application.

Claims

1. A wind-driven axial flow air compressor, characterized in that, include: Turbine fans, compound turbofan fans, compressors, and air collection systems; The turbine fan is fixedly connected to the rotor of the compressor on the same axis; The composite turbofan fan is coaxially connected between the rotor of the turbine fan and the rotor of the compressor; The air collection system is fixedly connected to the casing of the compressor along the angle of the composite blades of the composite turbofan fan; The compressor stator has an air outlet on its side; The composite fan blades of the composite turbofan are made of elastic steel. The composite fan blades include regions a, b, and c. The air in front of the compressor passes through region a of the composite turbofan and has an angle with the air inlet direction to generate a rotational driving force. The air direction is changed by the air collection system, and a strong gas flows along the oblique radial direction at the bottom of the air collection hood. It first flows into region c of the composite fan blade. The air direction remains unchanged in region c, the air speed decreases, and a rotational driving force is generated. Region b is shaped like a vortex fan blade to guide the radial air to the axial direction and generate a rotational driving force. The turbine fan is a right-hand rotary turbine fan, used to guide radial airflow within the rotor diameter range of the compressor's front center to between the compressor's stator and rotor.

2. The wind-driven axial air compressor according to claim 1, characterized in that, The compressor stator has a first air outlet on the first end side, and a first one-way valve is provided in the first air outlet.

3. The wind-driven axial air compressor according to claim 2, characterized in that, The compressor stator has a second air outlet on the second end side, and a second one-way valve is provided in the second air outlet.

4. The wind-driven axial air compressor according to claim 1, characterized in that, The compressor has a compression ratio of 1:

3.

5. The wind-driven axial air compressor according to claim 1, characterized in that, The compressor assembly employs adjustable stator blade technology.

6. A sail-type integrated system, characterized in that, include: At least one wind-driven axial air compressor, windmill, and air compressor station as described in any one of claims 1 to 5; The wind-driven axial air compressor is fixedly mounted on the first structural grid frame; The sails are symmetrically arranged on both sides of the wind-driven axial air compressor and are fixedly mounted on the second structural grid. The first structural space frame and the second structural space frame are connected to the top of the air compressor station through support members; The air outlet of the wind-driven axial air compressor is located at the center of the bottom of the platform, and is connected to the air inlet of the air compressor station via a rotary joint and a main outlet.

7. The sail-type integrated system according to claim 6, characterized in that, The first structural space frame and the second structural space frame are installed in a modular, cumulative manner.

8. The sail-type integrated system according to claim 6, characterized in that, The support component includes a base, a rotating support, a roller assembly, and a wind direction adjustment motor; The first structural space frame and the second structural space frame are fixedly installed on the support platform; The support platform is movably connected to the rotating support via a roller assembly; The rotating support is fixedly connected to the top of the air compressor station; The wind direction adjustment motor is located on the top of the air compressor station, and the power output end of the wind direction adjustment motor is connected to the support platform through a reduction gear set.

9. The sail-type integrated system according to claim 6, characterized in that, The sail is a structure that can automatically raise and lower according to the wind speed at different altitudes.

10. An automatic control method for a wind-driven axial flow air compressor, characterized in that, Applied to the sail-type integrated system according to any one of claims 6 to 9, comprising: The air pressure entering the air-driven axial flow air compressor is detected, and the working state of the air-driven axial flow air compressor is switched according to the air pressure. The working state is divided into a first working state, a second working state, and a third working state. If the wind pressure is lower than the first preset threshold, the wind-driven axial air compressor switches to the first working state, and the compressor of the wind-driven axial air compressor does not output compressed air. If the wind pressure is higher than the first preset threshold but lower than the second preset threshold, the wind-driven axial air compressor switches to the second working state, the first one-way valve of the first outlet of the wind-driven axial air compressor is closed, and the second one-way valve of the second outlet of the wind-driven axial air compressor is opened. If the wind pressure is higher than the second preset threshold, the wind-driven axial air compressor switches to the third working state, and the first and second check valves of the first and second air outlets of the wind-driven axial air compressor open.

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