A pressurizing system and a power generation system

Abstract

Disclosed are a pressurizing system and a power generation system, comprising a wind gathering device, a pressurizing device, and a gas storage device. The wind gathering device includes multiple blades and a rotating shaft. The multiple blades are arranged along a spatial spiral trajectory around the rotating shaft, with the number of turns of the spiral trajectory being at least greater than 1.5. At least three blades are distributed within each spiral turn. The blade's root is located at the portion of the blade closest to the rotating shaft. The windward surface of each blade faces the rotating shaft and is inclined toward the rotating shaft. The inner normal of the windward surface of each blade at the center of the root forms an acute angle with the axis of rotation away from the spatial spiral trajectory. The rotating shaft is connected to the input end of the pressurizing device for compression work, and the cylinder of the pressurizing device is connected to the gas storage device via a one-way valve. The pressurizing system and power generation system efficiently utilize wind energy and convert it into power for the pressurizing device to obtain compressed air. The compressed air and a gas engine are used to drive a generator, achieving more stable power generation.

Description

Technical Field

[0001] The present invention relates to the technical field of wind power engineering, and in particular to a pressurizing system and a power generation system. Background Art

[0002] Air compressors are currently primarily powered by electricity, of which wind energy is a major source, providing clean, free energy from nature. Existing wind turbines directly generate electricity from wind energy collected by their blades and connect it to the grid. However, due to the instability of wind resources, the output power is unstable. Large-scale wind power integration can negatively impact the grid, and curtailment of wind and electricity during off-peak periods can result in significant waste.

[0003] Chinese patent document "202022311787.7" discloses "a wind-driven air compression device" that directly converts wind energy collected by a horizontal-axis fan into gas energy, avoiding the equipment cost and energy loss required to convert wind energy into electrical energy, and then electrical energy into gas energy. This technical solution uses a modified horizontal-axis fan for transmission, which is not conducive to the horizontal-axis fan blades turning to the wind, resulting in low wind energy utilization. Furthermore, the blades of horizontal-axis fans can reach tens or even hundreds of meters, requiring a large installation area, generating high aerodynamic noise, and limiting installation site selection. Therefore, further improvements to this wind-driven air compressor are needed to increase its wind energy utilization and facilitate installation site selection.

[0004] To address the problems associated with wind turbines using wind energy collected by blades to directly generate electricity and connect to the grid, the Chinese invention patent document “CN201811623274.0” proposes a “power generation system that utilizes wind power to collect compressed air as a power source.” This system stores energy through compressed air, “splicing” intermittent wind energy together, and outputs it stably. Compressed air energy storage is low-cost and causes minimal environmental pollution. However, this technical solution uses a modified horizontal-axis fan for transmission, which is not conducive to the horizontal-axis blades turning to the wind, resulting in low wind energy utilization. Furthermore, the blades of horizontal-axis fans can reach tens or even hundreds of meters, requiring a large installation area and producing high aerodynamic noise, making them unsuitable for installation in urban or residential areas. This makes it difficult to commercialize heat recovery systems and cold air recovery systems that are attached to the power generation system. Therefore, further improvements to this wind turbine are needed to increase its wind energy utilization and the adaptability of its air compression structure. Summary of the Invention

[0005] In order to solve a series of technical problems commonly encountered in the prior art, such as the bulky size of the pressurizing system and the power generation system, low wind energy utilization rate, and energy waste, the present invention proposes a pressurizing system and a power generation system to solve the above problems.

[0006] According to one aspect of the present invention, a pressurizing system is provided, comprising a wind concentrator, a pressurizing device, and an air storage device. The wind concentrator comprises a plurality of blades and a rotating shaft. The plurality of blades are arranged along a spatial spiral trajectory around the rotating shaft, the spiral trajectory having at least 1.5 turns. At least three blades are distributed within each spiral turn. The blades have a root at a portion of the blade proximal to the rotating shaft. Each blade has a windward surface facing the rotating shaft and inclined toward the rotating shaft. The inner normal of the windward surface of each blade at the center of the root forms an acute angle with an axis away from the rotation direction of the spatial spiral trajectory. The rotating shaft is connected to an input end of the pressurizing device for compression work. The cylinder in the pressurizing device is connected to the air storage device via a one-way valve. In this system, the wind concentrator rotates under the action of wind and, under the guidance of the blades, directs airflow into the interior of the spatial spiral trajectory, forming a cyclone in the same direction of rotation as the spatial spiral trajectory. The pressure difference generated by the cyclone directs the external airflow into the internal cyclone, thereby increasing the efficiency of the wind energy utilization of the device. The continuous and efficient output of the rotating shaft of the wind concentrator is used as the drive of the pressurizing device to compress air.

[0007] Preferably, the wind concentrating device further comprises a spiral guide structure, comprising a spatial spiral structure that gradually contracts or expands from top to bottom. The spiral guide structure is arranged in a spatial spiral structure around the rotation axis, and a plurality of blades are spaced apart on the spiral guide structure. The head and / or tail of the spiral guide structure are fixedly connected to the rotation axis, and the spatial spiral trajectory is a spatial logarithmic spiral trajectory that gradually expands from top to bottom. This structure can form a certain spatial structure between the spiral guide structure and the rotation axis, facilitating the formation of an internal cyclone.

[0008] More preferably, the outline of the spatial spiral structure is obtained by splicing one or more segments of a logarithmic spiral line. With this arrangement, the airflow can be guided to rotate along the logarithmic spiral trajectory to form a logarithmic spiral cyclone.

[0009] Preferably, a line segment extending from the root of the blade toward the direction away from the root serves as the guide line of the windward surface of the blade, and a line segment along the width of the blade serves as the generatrix of the windward surface. The segments of the guide line and the generatrix are taken from a section of a logarithmic spiral. This structure of the blade can provide more guided airflow for the cyclone during rotation.

[0010] Preferably, the wind concentrating device further includes a fixed shaft and a wind deflector. The rotating shaft is a hollow structure and is rotatably mounted on the fixed shaft. The wind deflector blocks the leeward surface that blocks the rotation direction of the blades, and always guides the airflow toward the windward surface that drives the blades to rotate. The wind deflector is rotatably mounted on the fixed shaft via a connecting rod. This structure improves the stability of the rotating shaft. The provision of the wind deflector can guide the wind toward the windward surface to ensure efficient rotation of the device. The relative position of the wind deflector and the device is adjusted according to the wind direction, so that the wind deflector always guides the airflow toward the windward surface that drives the blades to rotate, thereby maximizing the rotation efficiency of the device.

[0011] Preferably, the rotating shaft drives the piston of the pressurizing device to reciprocate within the cylinder via a crank-connecting rod mechanism, and a gear transmission is provided between the rotating shaft and the crank-connecting rod mechanism. The gear transmission converts the rotational motion of the rotating shaft into the reciprocating motion of the piston, making it convenient to control the torque by utilizing the reduction ratio of the gear transmission to ensure the pressurizing action of the piston.

[0012] More preferably, the system includes a multi-stage pressurizing device, wherein the outlet of the upper-stage pressurizing device is connected to the inlet of the lower-stage pressurizing device, and a one-way valve is provided at the connection point. The pressurizing device at the same stage includes at least one pair of pressurizing devices. When the piston of one pressurizing device is in a compression state, the piston of the other pressurizing device is in an intake state. The multi-stage pressurizing device can achieve a higher compressed air pressure, and the different state settings of the pressurizing devices at the same stage can ensure stability during the transmission process.

[0013] Preferably, the pressurizing device can also be a screw compressor or a rotor compressor, and the rotating shaft drives the screw compressor or the rotor compressor to compress the air into the air storage device. Various pressurizing devices can all use the rotation drive of the rotating shaft to achieve pressurization, which can meet different pressure requirements.

[0014] Preferably, the pressurizing device and the gas storage device are provided with an air cooling structure, and the air cooling structure is provided on the pressurizing device and the gas storage device, and is arranged below the end of the spiral track in the direction of rotation. The air cooling structure provided at the end of the cyclonic rotation track can effectively cool the pressurizing device or the gas storage device, and the cyclonic air within the spiral track is used to dissipate heat from the air cooling structure on the pressurizing device or the gas storage device, thereby fully utilizing wind energy.

[0015] According to a second aspect of the present invention, a power generation system is proposed, comprising the above-mentioned pressurizing system, a gas engine and a generator, wherein the compressed air in the gas storage device is used to drive the gas engine to rotate and drive the generator to generate electricity.

[0016] Preferably, the gas engine comprises an outer ring and a core; the driving recess is circumferentially disposed on the inner annular surface of the outer ring; the core is coaxially disposed within the outer ring and rotatable relative to the outer ring; the outer annular surface of the core is provided with at least one nozzle and at least one exhaust port; the core further comprises an intake channel and an exhaust channel connected to the outside world, the intake channel being connected to the nozzle in the form of a logarithmic spiral flow channel, and the exhaust channel being connected to the exhaust port; the core is provided with at least one primary flow channel between the nozzle and the exhaust port, the inlet and outlet of the secondary flow channel being connected to two corresponding front and rear driving recesses of the outer ring, the inlet being disposed proximate to the outlet of the nozzle or the secondary flow channel so that gas ejected from the nozzle acts on the at least two driving recesses circumferentially disposed on the outer ring. With this structure, a gas engine can utilize compressed air to obtain efficient and stable power, thereby improving the efficiency of the generator.

[0017] Preferably, the device further includes a cold air delivery pipe for delivering the gas discharged from the gas engine outlet to the air inlet of the cylinder in the pressurizing device. By using the cold air delivery pipe to use the cooler gas from the gas engine outlet as the air inlet source for the pressurizing device, the pressurizing device can be cooled to a certain extent, thereby improving compression efficiency.

[0018] The pressurizing system of the present invention utilizes the structure of the wind-gathering device, so that when the wind acts on the windward surface, it pushes the blades and thereby drives the rotation of the spiral portion and the rotating shaft as a whole. The rotation of the rotating shaft is used to provide power for the pressurizing device in the energy storage device. Specifically, a piston-type or screw-type pressurizing device can be used for pressurization. At the same time, the wind from another part of the wind-gathering device follows the spatial spiral trajectory under the guidance of the blades, forming a spiral cyclone inside the spatial spiral trajectory with the same rotation direction as the blades. On the one hand, this spiral cyclone can assist the rotation of the blades from the inside, and on the other hand, it can form a certain air pressure difference between the cavity and the outside, providing a certain airflow guide for the external wind, guiding the airflow outside the device into the spatial spiral structure. The airflow in this direction can also act on the windward surface of the blades. In addition, a cooling device can be set in the outlet direction of the spiral cyclone. The wind generated by the spiral cyclone can be used to cool the pressurizing device, thereby fully utilizing wind energy. The compressed air obtained from the pressurizing system is used as an air source to drive the pneumatic engine and then drive the generator to achieve power generation, thereby achieving a more stable power generation effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] The accompanying drawings are included to provide a further understanding of the embodiments and are incorporated into and constitute a part of this specification. The accompanying drawings illustrate the embodiments and, together with the description, serve to explain the principles of the present invention. Other embodiments and many of the expected advantages of the embodiments will be readily apparent as they become better understood by reference to the following detailed description. The elements of the drawings are not necessarily to scale with respect to each other. Like reference numerals designate corresponding similar parts.

[0020] Figure 1 is a schematic structural diagram of a pressurizing system according to one embodiment of the present invention;

[0021] Figure 2 is a schematic structural diagram of a wind gathering device according to an embodiment of the present invention;

[0022] Figure 3 is a structural schematic diagram of a blade according to a specific embodiment of the present invention;

[0023] Figure 4a -e is a schematic diagram of the angle of a blade according to a specific embodiment of the present invention;

[0024] Figure 5 is a structural schematic diagram of a spiral guide structure according to a specific embodiment of the present invention;

[0025] Figure 6 2 is a schematic structural diagram of a wind gathering device with a wind guide plate according to a specific embodiment of the present invention;

[0026] Figure 7 This is a schematic diagram of the air guide operation of an air guide plate according to a specific embodiment of the present invention;

[0027] Figure 8 is a structural schematic diagram of a multi-stage pressurization system according to a specific embodiment of the present invention;

[0028] Figure 9 is a schematic structural diagram of a power generation system according to an embodiment of the present invention;

[0029] Figure 10 is a schematic structural diagram of a power generation system with a multi-stage pressurization system according to one embodiment of the present invention;

[0030] Figure 11 is a schematic structural diagram of a gas engine according to a specific embodiment of the present invention;

[0031] Figure 12 is a cross-sectional view of a power core of a gas engine according to a specific embodiment of the present invention;

[0032] Figure 13 It is a cross-sectional view of a power core of a gas engine according to another specific embodiment of the present invention. DETAILED DESCRIPTION

[0033] In the following detailed description, reference is made to the accompanying drawings, which form a part of the detailed description and are illustrated by illustrative specific embodiments in which the present invention may be practiced. To this end, directional terms, such as "top," "bottom," "left," "right," "up," "down," etc., are used with reference to the orientation of the figures being described. Because the components of the embodiments may be positioned in several different orientations, directional terms are used for illustrative purposes and are in no way limiting. It should be understood that other embodiments may be utilized or logical changes may be made without departing from the scope of the present invention. Therefore, the following detailed description should not be adopted in a limiting sense, and the scope of the present invention is defined by the appended claims.

[0034] Figure 1 FIG. 1 shows a structural diagram of a pressurizing system according to an embodiment of the present invention. Figure 1 As shown, the pressurizing system includes a wind gathering device 100, a transmission device 200, a pressurizing device 300 and an air storage device 400. The wind gathering device 100 can convert wind force into rotational motion to drive the transmission device 200 and then push the pressurizing device 300 to compress the air into the air storage device 400.

[0035] In a specific embodiment, Figure 2 FIG. 1 shows a schematic structural diagram of a wind gathering device according to a specific embodiment of the present invention. Figure 2 The wind gathering device shown includes an inner shaft 101, a rotating shaft 102, blades 103 and a spiral guide structure 104. The rotating shaft 102 is a hollow structure, which is sleeved on the inner shaft 101, and the inner shaft 101 and the rotating shaft 102 rotate together. The spiral guide structure 104 is in the shape of a spatial spiral, and the head and tail ends of the spiral guide structure 104 are fixedly connected to the rotating shaft 102, so that it can rotate synchronously with the rotating shaft 101. A plurality of blades 103 are distributed at intervals along the spatial spiral trajectory of the spiral guide structure 104. The spiral guide structure 104 is a spatial spiral structure including at least 2 effective spiral turns, and at least 3 blades 103 are arranged within one effective spiral turn. Preferably, the blades 103 can be arranged along the spiral trajectory and at intervals of a certain arc length. As the number of spiral turns increases, the number of blades 103 within one effective turn increases to ensure the effective force condition of the device and improve the rotation efficiency. In some other embodiments, for example Figure 1 The wind concentrating device 100 shown in FIG. 1 may also be configured without the separate inner shaft 101, and the rotating shaft 102 may be used directly as the output shaft to transmit the rotational motion. A flywheel may also be provided at the end of the rotating shaft 102 to improve the overall rotational stability and rotational torque, thereby better driving the transmission device to rotate.

[0036] According to the definition of generatrix in Science Popularization China, a curved surface figure can be regarded as the trajectory of a moving line when it moves. The moving line that forms the curved surface is called a generatrix. In this application, the windward surface of the blade can also be regarded as the surface formed by the movement of the generatrix along the guide line. Figure 3 As can be seen from the structural diagram of the middle blade, the blade 103 has a windward surface and a leeward surface. The windward surface of the blade 103 is formed by the movement of the busbar 1032 controlled by the guide line 1031, wherein the length direction away from the root of the blade 103 is the guide line 1031, and the width direction perpendicular to the length direction is the busbar 1032. When the blade 103 is set on the wind concentrating device, the thickness end surface of the blade 103 close to and facing the rotation axis 102 is defined as the root 1036 of the blade. Figure 3 In the embodiment, the root 1036 of the blade is represented by a curve that is the same as the generatrix of the blade 103 at the thickness end surface. The center of the windward surface of the root 1036 of the blade is defined as the root center 1037. The spatial angle relationship between the blade 103 and the rotation axis 102 is described in detail below with reference to an embodiment of a specific angle setting of the blade 103:

[0037] like Figure 4a As shown in the schematic diagram of the blade angle, each blade has a windward surface that faces and is tilted toward the rotation axis 102. The spatial spiral trajectory is a spatial logarithmic spiral trajectory that expands clockwise from top to bottom. The windward surfaces of the blades face counterclockwise, so when driven by wind, the wind concentrating device will rotate clockwise. The arrangement of blades 103 on the spatial spiral trajectory in this manner creates a spatial angle relationship between the blades and the spiral trajectory (the direction of the blades toward the root points in the direction of rotation of the spiral trajectory). Wind guided by the blades is directed and converged into the spatial spiral trajectory, rather than being directed to disperse outside the device. The angle β between the inner normal of the root center of each blade on its windward surface (i.e., the normal vector of the tangent plane between the root center and the windward surface at the root center in this embodiment) and the axis of the rotation axis 102 in the rotation direction away from the spatial spiral trajectory (in this embodiment, the spatial spiral trajectory rotates downward, away from the installation direction, i.e., upward) is an acute angle. Under the premise that the windward surfaces of the blades are facing the rotation axis 102 and inclined toward the rotation axis 102, the windward surfaces of the blades can have a tendency to face upward and toward the rotation axis, so as to guide the airflow toward the inside of the spatial spiral trajectory, and finally converge inside the spatial spiral trajectory to form a cyclone with the same rotation direction as the spatial spiral trajectory (i.e., clockwise and downward in this embodiment). The cyclone can generate a certain negative pressure inside the spatial spiral trajectory, so that the air above is attracted into the wind gathering device, and at the same time, the negative pressure generated by the cyclone can be converted into the airflow sucked into the spiral trajectory from above into a driving force acting on the windward surface, further driving the wind gathering device to rotate, and the wind energy utilization rate is further improved.

[0038] In one preferred embodiment, Figure 4b As shown in the angle diagram of the middle blade, the tangent of at least part of the guide line 1031 of the blade 103 at the root of the blade can extend to the windward surface of another blade in the rotation direction of the spiral trajectory of the blade space and have an intersection. There are multiple guide lines 1031 on the trajectory of the generatrix 1032, but at least part of the guide line 1031 at the root of the blade can extend to the windward surface of another blade. Preferably, the larger the portion, the better the secondary impact effect of the guided airflow on the other blade. In this embodiment, the guide line 1031 passing through the midpoint of the generatrix 1032 is used as an example for explanation. It is assumed that the intersection point of the tangent with the windward surface of the other blade is A, and the tangent of the blade root extends to the windward surface of the other blade in the rotation direction. The direction in which the tangent of the guide line at the root of the blade extends toward the intersection A is the direction of the airflow when the airflow leaves the root of the blade. The wind acting on the blade can be guided to the other blade, forming a secondary impact on the other blade, thereby improving energy utilization and preventing the wind from being directly discharged from the device and dissipated into the air after acting on the blade.

[0039] Continue to refer Figure 4c The blade angle diagram in FIG. 1 intercepts the horizontal plane projection diagram of the blade guide line within an effective number of turns. A tangent line 1034' is drawn through the intersection A toward the blade root on the windward surface of the blade at the intersection A. The angle α between the projection lines of the tangent line 1034 and the tangent line 1034' on the horizontal plane toward the rotation axis 102 is an obtuse angle. It should be recognized that Figure 4a The obtuse angle is the angle in space. In order to express it more intuitively, Figure 4b The projection angle in the figure is used as an explanation. In fact, the technical effects that can be achieved by both are to prevent the airflow from diffusing to the outside of the device, while continuing to guide the airflow of the secondary impact inward. It should be noted that the obtuse angle cannot be too close to 90 degrees. The closer it is to 90 degrees, the less conducive it is for the blades to guide the airflow inward. In a further preferred embodiment, the obtuse angle is set to be greater than 135 degrees. Through this angle setting, the airflow acting on the blade 103 can continue to impact other blades, and the airflow is guided from the outside to the inside, following the direction of rotation of the spiral trajectory and converging on the inside of the spiral guide structure 104. Multiple airflows eventually form cyclones inside the spiral guide structure 104. The negative pressure formed by the cyclones inside the spiral guide structure 104 can attract external airflow into the device, further improving the utilization rate of wind energy.

[0040] In a specific embodiment, a mounting portion 1033 is provided at the root of the blade. Mounting portion 1033 may be a threaded post for mounting and securing to the spiral guide structure. Guide lines 1031 and generatrix 1032 may be straight lines, curves, or a combination thereof, and the windward surface of the blade formed therefrom may be a plane, a curved surface, or a combination thereof. Preferably, guide lines 1031 and generatrix 1032 are both derived from logarithmic spirals. The windward surface of the blade formed by the guide lines and generatrix of the logarithmic spiral can cooperate with the spatial logarithmic spiral trajectory to better guide the airflow into the interior of the spatial logarithmic spiral trajectory to form a cyclone.

[0041] Continue to refer Figure 4d The blade angle is shown in the schematic projection diagram of the horizontal plane at the center of the blade root. The tangent direction of the guide line 1031 at the blade root installation point is set toward the inner side of the spiral trajectory. That is, the guide line 1031 intersects the spiral trajectory line 1042 at a point B (assuming it is the center of the blade root). At this intersection B, the tangent 1034 of the guide line 1031 and the tangent 1043 of the spiral trajectory at the intersection B form an angle γ. Preferably, the angle γ is an acute angle. Setting this angle can facilitate the installation of the blade on the spiral trajectory and can also guide its flow to converge in a direction close to the tangent direction of the spiral trajectory. In addition, it can increase the swept area of ​​the blade to a certain extent, improving the rotation efficiency of the device. In other embodiments, a normal line 1035 pointing to the axis of the rotation shaft is drawn through the intersection B, and the first tangent 1034 is located in the area of ​​the angle θ formed by the second tangent 1043 and the normal line 1035. When the first tangent 1034 is close to the normal line 1035, the angle γ may also be an obtuse angle. At this angle, the effect of guiding the airflow toward the inside of the spiral trajectory is relatively general. Part of the airflow will be guided to the outer edge of the blade and then diffused to the outside of the wind gathering device. If the angle γ is greater than the angle θ, the windward surface of the blade will face away from the rotation axis. At this time, after the wind acts on the windward surface of the blade, most of it will be guided to the outside of the wind gathering device, and the airflow cannot be guided to the inside of the spiral trajectory.

[0042] Continue to refer Figure 4e The blade angle diagram in the figure shows a schematic diagram of the blades in the top view direction. The spatial spiral trajectory 1042 rotates clockwise, and multiple blades 103 are arranged at intervals on the spatial spiral trajectory 1042. The windward surfaces of the blades 103 are all inclined toward the rotation axis. Under the action of wind, a cyclone is formed in the spatial spiral trajectory in the same direction as the rotation of the spatial spiral trajectory 1042. The cyclone forms an air pressure difference in the spatial spiral trajectory, attracting air from above into the device. At this time, the airflow entering the device can also act on the windward surface of the blade from the vertical direction, pushing the blade to rotate again, and relying on the arrangement between the blades, each blade has a partial windward surface exposed in the top view direction, so that each blade of the device can obtain the force of the airflow attracted inward due to the air pressure difference, thereby improving the rotation efficiency of the wind gathering device.

[0043] In summary, the blades 103 are arranged along a spatial spiral trajectory around the rotation axis 102. Combined with the fact that each blade has a windward surface facing the rotation axis 102 and tilted toward the rotation axis 102, the direction of the guide line pointing to the root of the blade can be biased toward the rotation direction of the spatial spiral trajectory. This arrangement can guide the airflow to the inside of the spatial spiral trajectory and flow along the rotation direction of the spatial spiral trajectory to eventually converge to form a cyclone. If the direction of the guide line pointing to the root of the blade is opposite to the rotation direction of the spatial spiral trajectory, the windward surface of the blade will be in a direction away from the rotation axis. In this state, the blade cannot guide the airflow to the inside of the spatial spiral trajectory, but instead guides it to the outside of the wind gathering device. In the above embodiment, the windward surface of the blade is concave, that is, the concave surface of the windward surface faces the rotation axis 102 and is tilted at an angle so that the blade 103 has a direction toward the axis of the rotation axis 102, which can be specifically defined according to the rotation direction of the spatial spiral trajectory. The inclination angle can be defined as the angle formed by the inner normal of the windward surface of each blade at the center of the root and the axis of the rotation direction away from the spatial spiral trajectory. The angle is an acute angle. With the combined effect of the arrangement of the spatial spiral trajectory, the inclination of the windward surface of the blade toward the rotation axis, and the acute angle formed by the inner normal of the windward surface of the blade at the center of the root and the axis of the rotation direction away from the spatial spiral trajectory, a cyclone is formed inside the spatial spiral trajectory, and the pressure difference between the inside and outside of the device guides the external airflow into the inside of the device. At this time, the orientation and angle of the blade 103 enable its windward surface to face the part of the airflow guided into the inside of the device, driving the wind gathering device to rotate more efficiently.

[0044] In a specific embodiment, Figure 5 FIG. 1 shows a schematic structural diagram of a spiral guide structure according to a specific embodiment of the present invention. Figure 5As shown, the spiral guide structure 104 is in the shape of a spatial spiral, which can be specifically a three-dimensional spiral or cylindrical spiral structure, and the spatial spiral structure forms at least more than 1.5 spiral turns, and at least 3 blades are distributed within an effective spiral turn. It is fixedly connected to the rotating shaft 102 at both ends, and a certain degree of cavity structure can be formed between it and the rotating shaft 102, so as to facilitate the airflow to form a cyclone in the same direction as the rotation direction of the device. In other embodiments, depending on the overall structure, size and stability, only the upper end or the lower end of the spiral guide structure 104 can be fixed to the rotating shaft 102. In addition, in addition to arranging multiple blades 103 on the rotating shaft 102 by means of the spiral guide structure 104, the mounting holes 1041 of the blades 103 can be set in advance on the spiral guide structure 104, without the need to adjust the angle of each blade individually, which facilitates large-scale production, assembly and maintenance. However, it should be recognized that other blade fixing methods can also be used, such as using a connecting rod to fix the blade 103 to the surface of the rotating shaft 102, and arranging to form a spatial spiral structure with a number of spiral turns of at least 1.5 turns. The blade 3 also presents the same or similar blade angle relative to the rotating shaft 102 in space as shown in Figure 4, ensuring that there is also a space between the blade 103 and the rotating shaft 102 where a cyclone can be formed, and the above-mentioned technical effects of the present application can also be obtained during rotation. Although the spatial spiral trajectory of the spiral guide structure 104 shown in the above figure is a spatial spiral structure that gradually expands from top to bottom, it should be recognized that the spatial spiral trajectory of the spiral guide structure 104 can also be a spatial spiral structure that gradually contracts from top to bottom, or a cylindrical spiral structure, or a combination of a gradually contracting and gradually expanding spatial spiral structure. The size of the blade can also be adjusted incrementally or incrementally according to the above spatial spiral structure to form a spatial spiral structure or a cylindrical spiral structure that is gradually contracting, gradually expanding, or a combination thereof on the blade extension. This configuration can form a variety of blade and spiral trajectory combination schemes, which can be determined according to actual design requirements.

[0045] Continue to refer Figure 6 , Figure 6 FIG. 1 shows a schematic structural diagram of a wind gathering device with a wind guide plate according to a specific embodiment of the present invention. Figure 6As shown, an air guide plate 106 can also be provided on the wind gathering device. The air guide plate 106 can be a flat surface or a curved surface. The air guide plate 106 is fixed therebetween by an upper fixing plate 1061 and a lower fixing plate 1062. The upper fixing plate 1061 and the lower fixing plate 1062 are rotatably provided on the fixed shaft 107 through bearings. In this embodiment, the rotating shaft 102 is also a hollow structure and is sleeved on the fixed shaft 107. The fixed shaft 107, which is independent of the rotating shaft 102, replaces the inner shaft 101 that rotates synchronously with the rotating shaft 102. The rotating shaft 102 is rotated by the bearings at the upper and lower ends of the rotating shaft 102 cooperating with the fixed shaft 107. The rotating shaft 102 can rotate relative to the fixed shaft 107, and the wind guide plate 106, the upper fixed plate 1061 and the lower fixed plate 1062 can rotate relative to the fixed shaft 107 to facilitate the adjustment of the angle of the wind guide plate according to the wind direction. The wind guide plate 106 can be rotated with the fixed shaft as the axis according to the wind direction to adjust the angle. Combined with the yaw system to control the rotation angle of the wind guide plate 106 and the braking positioning, the wind entering the wind gathering device is always directed toward the side of the windward surface of the blade, blocking the leeward surface of the blade on the device in this wind direction, overcoming the resistance of the leeward surface to the wind, and improving the rotation efficiency of the wind gathering device. Figure 7 FIG. 1 shows a schematic diagram of the air guide plate according to a specific embodiment of the present invention. Figure 7 As shown, when the wind acts on the wind concentrating device, it will simultaneously act on the windward surface of the blades on one side of the wind concentrating device and the leeward surface of the blades on the other side, resulting in low rotation efficiency of the wind concentrating device. By using the setting of the wind guide plate 6, the blades on the leeward surface side are shielded, and this part of the wind is guided by the wind guide plate 6 and applied to the blades on the side of the windward surface that is under force, reducing the force on the leeward surface and allowing the wind concentrating device to rotate more efficiently. Although Figure 1 The wind deflector structure is not shown in the figure. It should be recognized that the wind deflector structure is set at Figure 1 In the pressurizing system, the inner shaft 101 may not be provided, and the rotation shaft 102 may be directly connected to the main gear 201 of the transmission device 200 to achieve transmission. The fixed shaft 107 is used to rotatably set the wind guide plate 106. The use of a wind gathering device with a wind guide plate can further improve the rotation efficiency of the wind gathering device, thereby improving the compression efficiency of the pressurizing device. In other embodiments, the upper fixed plate 1061 and the lower fixed plate 1062 can be rotatably mounted on the inner shaft 101 through bearings, and a wind guide plate fixing mechanism is also configured on the ground. Due to the use of the bearing mounting, the inner shaft 101 can rotate relative to the wind guide plate 106 during operation without affecting its operation. Alternatively, the wind guide plate and its fixing mechanism are not dependent on the installation of the wind gathering device 100, and the wind guide plate and its fixing mechanism are separately provided outside the wind gathering device 100. As long as the wind directed to the wind gathering device is always directed toward the side of the windward surface of the blade, it can be used.

[0046] In a preferred embodiment, the transmission device 200 in the pressurization system adopts gear transmission, including a main gear 201, a driven gear 202 and a connecting rod 203. The main gear 201 is set on the inner shaft 101 and rotates with the rotating shaft 102. The driven gear 202 is engaged with the main gear 201. The connecting rod 203 is connected to the driven gear 202 to form a crank-connecting rod mechanism to convert the rotational motion of one end of the driven gear 202 into reciprocating linear motion at the other end of the connecting rod 203.

[0047] In a specific embodiment, the pressurizing device 300 adopts a piston-type pressurizing device, including a piston 301 and a cylinder 302. The cylinder 302 is provided with an outlet 303 and an inlet 304. The piston 301 is pushed by the connecting rod 203 of the transmission device 200 to achieve reciprocating motion of the piston in the cylinder. A one-way valve is provided on the inlet 304 to ensure that when the piston 301 moves in the direction of the compressed gas, the compressed gas can only be discharged from the outlet 303. When the piston 301 moves away from the compressed gas, external gas can enter the cylinder 302 through the inlet 304. Alternatively, in addition to using a piston-type pressurizing device, the pressurizing device 300 can also adopt a pressurizing device of other structures such as a screw type or a rotor type according to different pressure requirements of the compressed air. The driving shaft of the above device is driven by a rotating shaft, which can also achieve the technical effect of compressing air in the present application.

[0048] Continue to refer Figure 8 , Figure 8 FIG. 1 shows a schematic structural diagram of a multi-stage pressurization system according to a specific embodiment of the present invention. Figure 8 As shown, the multi-stage pressurization system is provided with a pre-pressurization device 300', which also includes a pre-pressurization piston 301' and a pre-pressurization cylinder 302', wherein the air inlet 304' of the pre-pressurization cylinder 302' is also provided with a one-way valve to ensure that when the pre-pressurization piston 301' moves in the direction of the compressed gas, the compressed gas can only be discharged from the air outlet 303', and the pre-pressurized gas is transported to the air inlet 304 of the pressurization device 300 through the connecting pipe, so that the initial air pressure of the pressurization device 300 is the compressed air pressure of the pre-pressurization device 300', further increasing the compressed air pressure of the pressurization device 300 to obtain compressed air with a higher pressure. A transition air storage device can also be provided in the middle of the connecting pipe, which can obtain a portion of compressed air with a lower pressure on the one hand, and can also steadily supply an air source with a certain air pressure according to the needs of the lower-level pressurization device to ensure the pressurization efficiency of the final overall pressurization device.

[0049] In a specific embodiment, the transmission device 200 is further provided with a second driven gear 204 and a second connecting rod 205. The second driven gear 204 meshes with the main gear 201, and the second connecting rod 205 is connected to the second driven gear 204 to form a second crank-connecting rod mechanism, which converts the rotational motion of one end of the second driven gear 204 into the reciprocating linear motion of the second connecting rod 205 connected to the second piston 301'. Preferably, the pre-pressurizing device 300' and the pressurizing device 300 are actuated simultaneously, and when one piston is moving toward the compression direction of the compressed gas, the other piston is moving away from the intake direction of the compressed gas. This arrangement can balance the torque at both ends of the main gear 201, increasing the stability of the entire transmission system. It can also be adjusted according to the size of the cylinder and the reduction ratio of the gears, further improving the efficiency and stability of the transmission.

[0050] In another preferred embodiment, the multi-stage pressurization system may further include multiple groups of pressurization devices at the same level, the outputs of multiple groups of pressurization devices at the same level may be used as the inputs of the pressurization devices at the next level, and the pressure of the compressed air may be increased step by step, and the pressurization devices at the same level may include at least one pair of pressurization devices, and at least one pair of pressurization devices at the same level may refer to similar Figure 2 The configuration is such that when the piston of one pressurizing device moves toward the compressed air, the piston of the other pressurizing device moves toward the compressed air, away from the compressed air. Their air inlets are directly connected to the outside air via a one-way valve, and their air outlets are connected to the air inlet of the next-level pressurizing device, achieving a step-by-step pressurization operation. Alternatively, the same-level pressurizing device can be configured as three, four, or even more pressurizing devices. Through reasonable configuration, the rotary drive of the rotating shaft can be fully utilized while ensuring torque balance among the drive units to achieve a smooth pressurization effect.

[0051] In a specific embodiment, the gas storage device 400 can be a gas tank structure or any other structure capable of storing compressed air. Although only one pressurizing device 300 and gas storage device 400 are shown in the figure, it should be recognized that multiple groups of pressurizing devices 300 and gas storage devices 400 can be configured according to the pressure requirements of the compressed air and the output of the wind gathering device, or one group of pressurizing devices 300 can correspond to multiple gas storage devices 400.

[0052] In other embodiments, the gas storage device may be a pipeline gas storage structure, which includes a gas storage pipeline, a base, an air inlet and an air outlet connected to the gas storage pipeline. The air inlet and the air outlet are both provided on the base, and the surface of the base is provided with a plurality of grooves for fixing the gas storage pipeline, the grooves are connected to the gas storage pipeline, and the grooves are all connected to the air inlet and the air outlet. The grooves are arranged in a matrix, so that the gas storage pipelines are arranged in a matrix on the surface of the base, and the diameter of the gas storage pipelines and the spacing between the gas storage pipelines are appropriately controlled. On the one hand, the gas storage pipelines can have a larger gas storage space (within a unit volume), and on the other hand, the gas storage pipelines can have good high-temperature heat dissipation and low-temperature heat absorption effects.

[0053] In a preferred embodiment, the pressurizing device 300 and the gas storage device 400 are equipped with an air-cooling structure, located below the end of the spiral trajectory in the direction of rotation (i.e., in the direction of the cyclone formed by the wind concentrating device). The air-cooling structure can be a heat-conducting device installed on the pressurizing device 300 and the gas storage device 400. By increasing the heat dissipation area, it relies on the airflow in the direction of the cyclone's outlet to achieve rapid cooling, thereby preventing overheating of the pressurizing device and the gas storage device. Alternatively, water cooling can be used to dissipate heat from the pressurizing device 300 and the gas storage device 400. In some residential settings, this heat can be used to heat domestic water, to some extent replacing a water heater.

[0054] Figure 9 A schematic diagram of a power generation system according to an embodiment of the present invention is shown. Figure 1 The pressurized system shown is equipped with a gas engine 500 and a generator 600. Figure 10 The schematic diagram of the structure of the power generation system with a multi-stage pressurization system is shown in FIG. Figure 8 The illustrated multi-stage pressurization system is equipped with gas engines 500 and 600. The gas source from the gas storage device 400 drives the rotation of the gas engine 500, which in turn drives the rotor of the generator 600 to generate electricity. In other embodiments, the gas engine 500 can also be used to drive the stator of the generator 600 to rotate to generate electricity, thereby achieving the technical effect of using compressed air to generate electricity in this application.

[0055] In a specific embodiment, Figure 11 FIG. 1 shows a schematic structural diagram of a gas engine according to a specific embodiment of the present invention. Figure 11As shown, the gas engine 500 includes an outer ring 501, a central shaft 502 and a core 503. The core 503 is placed inside the outer ring 501. An air inlet shaft 508 is provided at one end of the central shaft 502, and an air outlet shaft 509 is provided at the other end. The air inlet shaft 508 and the air outlet shaft 509 are not connected on the central shaft 502.

[0056] Please refer to Figure 12 The outer surface of the core 503 is provided with at least one nozzle 511 and at least one exhaust port 512; the core also has an air inlet channel 506 and an exhaust channel 507, the air inlet channel 506 is connected to the nozzle 511, and the exhaust channel 507 is connected to the exhaust port 512; the air inlet channel 506 is connected to the air inlet shaft channel 508 through the air inlet connecting hole, and the exhaust channel 507 is connected to the air outlet shaft channel 509 through the air outlet connecting hole. Figure 11 and Figure 12 As can be seen from the cross-sectional view, a plurality of driving recesses 510 are provided on the circumference of the inner ring surface of the outer ring 501, and the core body 503 is provided with at least one primary flow channel 513 between the nozzle 511 and the exhaust port 512, and the inlet and outlet of the secondary flow channel 513 are connected to the front and rear driving recesses 510 corresponding to the outer ring, and the inlet is close to the nozzle or the outlet of the secondary flow channel, and the distance is less than the arc corresponding to one driving recess 510; thus, the gas enters from the air inlet channel 506, is ejected step by step through the nozzle 511 and the secondary flow channel 513 of the core body 503, and acts on at least two driving recesses 510 on the circumference of the outer ring 501, generating thrust for these driving recesses 510 to drive the outer ring 501 to rotate and do work, thereby realizing continuous power output, and finally, the gas is discharged through the exhaust port 512 of the core body 503 through the exhaust channel 507 and the exhaust shaft 509 of the central axis 502, thereby realizing continuous output of speed and torque.

[0057] In a preferred embodiment, please refer to Figure 12 and Figure 13 The inlet flow channel 506 extends outward from the center in a logarithmic spiral, forming a logarithmic spiral flow path. The apex of this logarithmic spiral is located on the central axis of the intermediate shaft 502. Due to the constant pressure angle of the logarithmic spiral, compressed gas loss during injection is minimized while ensuring that the compressed gas acts on the drive slots 510 with consistent time and thrust, resulting in smooth transmission. The logarithmic spiral angle determines the angle of compressed gas injection, and its magnitude influences the speed and torque of the rotating outer ring 501. If the angle is too large, the tangential component of the driving force of the outer ring 501 decreases, or even renders it incapable of rotation. If the angle is too small, the force-bearing area of ​​the driving surface of the outer ring 501 is too small, resulting in a low rotational driving force. Therefore, the logarithmic spiral angle is preferably between 15° and 45°. Furthermore, the logarithmic spiral angle determines the number of drive slots 510 simultaneously acted upon by the injection ports of the inner core 503, and can be designed to meet specific requirements.

[0058] In a preferred embodiment, the secondary flow channel 513 has a return channel and a connected stroke channel, and the direction of the return channel and the stroke channel is an arc line that bends inward from the edge of the core 503 and then extends to the edge. The arc line is preferably a logarithmic spiral line, and the direction of the logarithmic spiral line of the stroke channel of the secondary flow channel is roughly the same as the direction of the logarithmic spiral line of the intake channel, so that the tangential component of the secondary flow channel 513 driving the outer ring 501 is greater.

[0059] In a preferred embodiment, since the gas engine 500 operates by releasing compressed air at a certain pressure, a heat-absorbing process, a cold air delivery pipeline can be provided. This pipeline is used to transport the low-temperature gas discharged from the gas engine's outlet to the air inlet of the cylinder in the pressurizing device. By using the cold air delivery pipeline to transfer the cooler gas from the gas engine's outlet as the air inlet source for the pressurizing device, the pressurizing device can be cooled to a certain extent, thereby improving compression efficiency.

[0060] The pressurizing system of the present invention uses the most common wind in nature as a power source. It can use a wind gathering device to convert wind energy into mechanical energy of rotational motion and then use the rotational motion to pressurize and collect compressed gas, and use compressed air to generate electricity. It has a wide range of promotion and utilization value. For example, gas stations and power stations can be established in areas with relatively abundant wind energy. At the same time, the heat generated by pressurization can also be used. For example, if this system is set up in a residential area, on the one hand, it can achieve independent power generation. On the other hand, the heat generated by the pressurizing device can be used to heat domestic water and replace the water heater. The low-temperature gas output by the gas engine can also be processed and used as cold air supply to maximize energy utilization. The power generation system of the present invention can be installed on the roofs of community buildings, the top floors of large buildings, highways, urban public lighting systems, etc., to provide a stable power supply during peak electricity consumption periods. The pressurizing system and power generation system of the present invention have high wind energy utilization, controllable power generation time, stable output power, and the generator set is set on the ground. The installation and maintenance requirements are not high, and they are suitable for homes or businesses.

[0061] Obviously, those skilled in the art can make various modifications and changes to the embodiments of the present invention without departing from the spirit and scope of the present invention. In this way, if these modifications and changes are within the scope of the claims of the present invention and their equivalents, the present invention is also intended to cover these modifications and changes. The word "comprising" does not exclude the presence of other elements or steps not listed in the claims. The simple fact that certain measures are recited in mutually different dependent claims does not indicate that a combination of these measures cannot be used to advantage. Any reference signs in the claims should not be considered as limiting the scope.

Claims

1. A pressurizing system, characterized in that: The invention comprises a wind gathering device, a pressurizing device and an air storage device, wherein the wind gathering device comprises a plurality of blades and a rotating shaft, wherein the plurality of blades are distributed around the rotating shaft along a spatial spiral trajectory, the number of turns of the spiral trajectory formed is at least greater than 1.5 turns, and at least 3 blades are distributed within one spiral turn, with the portion of the blade close to the rotating shaft as the root, the windward surface of each blade faces the rotating shaft and is inclined toward the rotating shaft, and the angle formed by the inner normal of the windward surface of each blade at the center of the root and the axis of the rotation direction away from the spatial spiral trajectory is an acute angle, the rotating shaft is connected to the input end for compression work in the pressurizing device, and the cylinder in the pressurizing device is connected to the air storage device via a one-way valve; the wind gathering device The device also includes a spiral guide structure, which includes a spatial spiral structure that gradually shrinks or expands from top to bottom, and the spiral guide structure is arranged in a spatial spiral structure around the rotating shaft. The multiple blades are arranged on the spiral guide structure at intervals, and the head and / or tail of the spiral guide structure is fixedly connected to the rotating shaft. The spatial spiral trajectory is a spatial logarithmic spiral trajectory that gradually expands from top to bottom; the wind gathering device rotates under the action of wind and guides the airflow into the interior of the spatial spiral trajectory under the guidance of the blades to form a cyclone with the same rotation direction as the spatial spiral trajectory, and the external airflow is guided to the internal cyclone through the pressure difference generated by the cyclone, and the rotating shaft of the wind gathering device is continuously and efficiently output as the drive of the pressurizing device to compress the air.

2. The pressurizing system according to claim 1, characterized in that The outline of the spatial spiral structure is obtained by splicing one or more segments of the logarithmic spiral.

3. The pressurizing system according to claim 1, characterized in that A line segment in the length direction extending from the root of the blade toward away from the root is used as the guide line of the windward surface of the blade, and a line segment in the width direction of the blade is used as the busbar of the windward surface. The line segments of the guide line and the busbar are taken from a section of a logarithmic spiral.

4. The pressurizing system according to claim 1, wherein: It also includes a fixed shaft and an air guide plate, the rotating shaft is a hollow structure, the rotating shaft is rotatably mounted on the fixed shaft, the air guide plate blocks the leeward surface that blocks the rotation direction of the blade, and always guides the airflow toward the side of the windward surface that drives the blade to rotate, and the air guide plate is rotatably set on the fixed shaft through a connecting rod.

5. The pressurizing system according to claim 1, characterized in that The rotating shaft drives the piston of the pressurizing device to reciprocate in the cylinder through a crank-connecting rod mechanism, and the rotating shaft and the crank-connecting rod mechanism are driven by gears.

6. The pressurizing system according to claim 5, characterized in that It includes a multi-stage pressurizing device, the air outlet of the upper-stage pressurizing device is connected to the air inlet of the lower-stage pressurizing device, and a one-way valve is provided at the connection point. The pressurizing device at the same level includes at least one pair of pressurizing devices. When the piston of one of the pressurizing devices is in a compression state, the piston of the other pressurizing device is in an intake state.

7. The pressurizing system according to claim 1, characterized in that The pressurizing device and the air storage device are provided with an air cooling structure, and the air cooling structure is arranged below the end of the spiral track in the rotation direction.

8. A power generation system, characterized in that: The pressurized system comprises the pressurized system according to any one of claims 1 to 7, and further comprises a gas engine and a generator, wherein the compressed air in the gas storage device is used to drive the gas engine to rotate so as to drive the generator to generate electricity.

9. The power generation system according to claim 8, characterized in that: The gas engine includes an outer ring and a core body; a driving recess is provided on the circumference of the inner ring surface of the outer ring, and the core body is coaxially arranged in the outer ring and can rotate relative to the outer ring; the outer ring surface of the core body is provided with at least one nozzle and at least one exhaust port; the core body also has an intake channel and an exhaust channel connected to the outside world, the intake channel is connected to the nozzle in the form of a logarithmic spiral flow channel, and the exhaust channel is connected to the exhaust port; the core body is provided with at least one primary flow channel between the nozzle and the exhaust port, the inlet and outlet of the secondary flow channel are connected to the front and rear driving recesses corresponding to the outer ring, and the inlet and the outlet of the nozzle or the secondary flow channel are arranged close to each other so that the gas ejected from the nozzle acts on at least two driving recesses on the circumference of the outer ring.

10. The power generation system according to claim 8, characterized in that It also includes a cold air delivery pipeline, which is used to deliver the gas discharged from the gas outlet end of the gas engine to the air inlet of the cylinder in the pressurizing device.

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