A fluid kinetic energy enhancement device

Abstract

The present invention relates to the field of fluid mechanics power machinery technology, and specifically to a fluid kinetic energy enhancement device, comprising a center wheel, a plurality of steering blades and a plurality of reversing blades, wherein the plurality of steering blades are installed on the center wheel in a divergent shape, the reversing blades are movably hinged with the steering blades, and the reversing blades are arranged on the side of the steering blades facing the fluid direction. In the present invention, the reversing blades and the steering blades are not easily affected by changes in wind direction, and the incoming wind from all directions can be effectively utilized as the power of the reversing blades and the steering blades, thereby improving the force effect of the entire device and the working efficiency of the wind turbine generator without the need for a rudder. When the wind force is acting on the reversing blade area, the reversing blade is subjected to force on the front side, thereby increasing the force area. At the initial stage of the reaction, the reversing blades are driven by the fluid, and the reversing blades are automatically unfolded when they are reversed. When unfolding, they are controlled by a buffer mechanism, so that the opening angle of the reversing blades is greater than 90° and less than 160°.

Description

Technical Field

[0001] The present invention relates to the technical field of fluid mechanics and power machinery, and in particular to a fluid kinetic energy enhancement device. Background Art

[0002] At present, there are many types of wind, water, wave and tidal power generation technologies. Whether it is hydropower or wind power, the frame structure is large, the production and operation are complicated, the investment is huge, the site is large, the structure is complex, the materials are many, the cost is high, and it is restricted by the geographical environment. The utilization rate of fluid kinetic energy is relatively low.

[0003] Chinese patent CN106150897A provides a track-controlled variable-pitch high-efficiency fluid power machine. To solve the problem of low energy conversion efficiency in the prior art, it includes a main vertical shaft, and the upper end and the middle of the main vertical shaft are respectively fixed outward with two or more pairs of upper and lower horizontal arms that are evenly distributed in the circumference and correspond to each other. The outer ends of each pair of upper and lower horizontal arms are jointly hinged with a secondary vertical shaft in the circumference. The secondary vertical shaft is fixed with a fan blade that can freely pass through the main vertical shaft and the upper and lower horizontal arms; the lower part of the main vertical shaft is hinged to a base, and the base is fixed with a fan blade that can freely pass through the main vertical shaft and the upper and lower horizontal arms. A circular track surrounding the main vertical axis; the secondary vertical axis extends from the lower horizontal arm of the secondary vertical axis, the secondary vertical axis end is hinged to the track wheel seat through a connecting rod transmission mechanism, and the track wheel seat is hinged to the inner and outer horizontal track wheels that match the inner and outer peripheral track surfaces of the circular track through the vertical axis; the main vertical axis or the horizontal arm is equipped with a directional mechanism that can always make the specific part of the circular track face the wind; the shape of the circular track and the position relationship with the secondary vertical axis meet the following requirements: when the upper and lower horizontal arms rotate clockwise or counterclockwise, the wind direction and the fan blades are obliquely crossed, and the fan blades can always be driven to rotate in the same direction. It has the advantages of being able to work normally even when the power fluid flow rate is low, high energy conversion efficiency, and strong power performance.

[0004] However, it has a complex structure, high operating cost and low kinetic energy utilization rate. Summary of the invention

[0005] The main technical problem solved by the present invention is to provide a fluid kinetic energy efficiency enhancement device with a simple structure and increased kinetic energy utilization rate in view of the shortcoming of low utilization rate of fluid kinetic energy in the prior art.

[0006] In order to solve the above problems, the present invention provides a fluid kinetic energy enhancement device, including a center wheel, a plurality of turning blades and a plurality of reversing blades. The plurality of turning blades are installed on the center wheel in a divergent shape. The reversing blades are movably hinged to the turning blades. The reversing blades are arranged on the side of the turning blades facing the fluid direction. The hinge opening angle between the reversing blades and the turning blades is 0° to 160°.

[0007] Furthermore, a guide side wall is provided on the side of the reversing blade facing the turning blade.

[0008] Furthermore, the height of the guide side wall gradually decreases from the hinge of the reversing blade to the end of the turning blade.

[0009] Furthermore, there are two guide side walls, which are respectively arranged on two side edges of the turning blade.

[0010] Furthermore, a reversing auxiliary elevation angle is arranged at the end of the reversing blade away from the turning blade.

[0011] Furthermore, a bending portion is provided at the end of the turning blade, and a reversing auxiliary elevation angle is formed between the bending portion and the reversing blade.

[0012] Further, the bending direction of the bent portion is away from the turning blade.

[0013] Furthermore, the angle of the switching auxiliary elevation angle is between 90° and 120°.

[0014] Furthermore, a buffer mechanism capable of controlling the opening angle of the reversing blade is installed at the hinge between the reversing blade and the turning blade.

[0015] Furthermore, the steering blade and the reversing blade are movably hinged via a hinge shaft, and the buffer mechanism comprises a torsion spring, which is sleeved on the hinge shaft; one end of the torsion spring is connected to the steering blade, and the other end is connected to the reversing blade.

[0016] In the fluid kinetic energy enhancement device of the present invention, the reversing blades and the turning blades are not easily affected by the change of wind direction. The wind from all directions can be used as the power of the reversing blades and the turning blades to achieve effective utilization, thereby improving the force effect of the entire device and the working efficiency of the wind turbine generator without the need for a rudder. When the wind is acting on the reversing blade area, the front of the reversing blade is subjected to force, so that the force area is increased. At the initial stage of the reaction, the reversing blade is driven by the fluid, and the reversing blade automatically unfolds when it is reversed. When unfolding, it is controlled by the buffer mechanism so that the opening angle of the reversing blade is greater than 90° and less than 160°. The direction of the fluid on the reverse side of the reversing blade is used to form a combined force, and the pressure difference of the fluid on the front and back sides is used to obtain effective lift. By directly converting a part of the reaction force fluid kinetic energy into useful work, the positive force is much greater than the reaction force, thereby fully achieving the purpose of efficiently utilizing the fluid kinetic energy. When the reversing blade plane is completely consistent with the direction of the fluid, the reversing blade is automatically reduced by the action of the fluid to reduce the force area and reduce the resistance, so that the utilization rate of the fluid kinetic energy is the highest. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings in the description only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other related drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 It is a structural schematic diagram of a fluid kinetic energy enhancement device of the present invention;

[0019] Figure 2 It is a structural schematic diagram of a reversing fan blade in a fluid kinetic energy enhancement device of the present invention;

[0020] Figure 3 It is a schematic diagram of the assembly of a fluid kinetic energy enhancement device of the present invention;

[0021] The reference numerals are: center wheel 1 , steering blade 2 , reversing blade 3 , buffer mechanism 4 , guide side wall 31 , reversing auxiliary elevation angle 32 .

[0022] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0023] In order to more clearly illustrate the technical solution of the present invention, the claims of the present invention are further described in detail in conjunction with specific embodiments and drawings. It can be understood that the following drawings only show certain embodiments of the present invention and therefore should not be regarded as limiting the scope. Any limited number of modifications made by anyone within the scope of the claims of the present invention are still within the scope of the claims of the present invention.

[0024] It should be understood that in the description of the present invention, it should be noted that the terms "upper", "lower", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the product of the invention is usually placed when in use, which is only for the convenience of describing the present invention and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first", "second", etc. are only used to distinguish the description, and cannot be understood as indicating or implying relative importance.

[0025] See also Figure 1 , 3As shown, the fluid kinetic energy enhancement device includes a central wheel 1, a plurality of steering blades 2 and a plurality of reversing blades 3. The plurality of steering blades 2 are installed on the central wheel 1 in a divergent shape. The reversing blades 3 are movably hinged with the steering blades 1. The reversing blades 3 are arranged on the side of the steering blades 2 facing the fluid direction. The hinged opening angle between the reversing blades 3 and the steering blades 2 is 0° to 160°. The reversing blades 3 include a guide side wall 31 and a reversing auxiliary elevation angle 32. Each steering blade 2 can rotate a certain angle with the central wheel as the center. When the fluid drives the steering blades 2 to rotate, the reversing blades are driven to open between 90° and 160° to increase the force-bearing area. When the fluid movement direction is oblique to the steering blades 2, the reversing blades 3 are driven to rotate in the same direction. When the steering blades 2 rotate clockwise, when the reversing blades 3 are opened to 0°, the reversing blades 3 and the steering blades 2 are in an overlapping state.

[0026] See also Figure 2 As shown, a guide side wall 31 is provided on the side of the reversing blade 3 facing the turning blade 2. The height of the guide side wall 31 gradually decreases from the hinge of the reversing blade 3 to the end of the turning blade 2. There are two guide side walls 31, and the two guide side walls 31 are respectively provided on the two side edges of the turning blade 2. A reversing auxiliary elevation angle 32 is provided at the end away from the turning blade 2 on each reversing blade 3. A bending portion (not shown) is provided at the end of the turning blade 2, and a reversing auxiliary elevation angle 32 is formed between the bending portion and the reversing blade 2. The bending direction of the bending portion is away from the turning blade 2. The angle of the reversing auxiliary elevation angle 32 is between 90° and 120°. The advantages of the guide side wall are conducive to increasing the contact area of ​​the wind force and making the wind flow smooth. At the same time, it is also used to hinge the reversing blade with the turning blade to enhance the stability of the device. The design of the auxiliary elevation angle is convenient for increasing the contact area of ​​the wind force and increasing the utilization rate of kinetic energy.

[0027] Furthermore, a buffer mechanism 4 capable of controlling the opening angle of the reversing blades is installed at the hinge of the reversing blades 3 and the turning blades 2. The buffer mechanism is provided at the hinge of the turning blades and the reversing blades to facilitate the control of the opening angle of the reversing blades, so that when the fluid drives the turning blades 2 to rotate, the reversing blades are driven to open between 90° and 160°, so as to increase the force-bearing area and achieve the best utilization of the fluid kinetic energy.

[0028] Furthermore, the steering blade and the reversing blade are movably hinged through a hinge shaft, and the buffer mechanism includes a torsion spring, which is sleeved on the hinge shaft; one end of the torsion spring is connected to the steering blade, and the other end is connected to the reversing blade. The steering blade and the reversing blade are movably hinged through a hinge shaft, and the torsion spring is sleeved on the hinge shaft, so that the torsion spring can further play a buffering role, and the angle can be appropriately adjusted according to actual needs to prevent it from being deformed or even damaged by excessive external force.

[0029] Attached Figure 1 An optimal structure of the present invention is given. The fluid kinetic energy enhancement device is composed of a central wheel 1, a plurality of steering blades 2 and a plurality of reversing blades 3. It can work in a variety of environments according to actual needs, such as water pumping and power generation, for example, for wind power generation, including natural wind power generation, artificially created wind power generation, power generation on land and air mobile equipment, power generation and work of fluid in pipelines, and can also be used for hydroelectric power generation, including automatic water lifting and power generation of natural water flow with drop in rivers, ditches and canals, artificially created water kinetic energy power generation, ocean current, wave energy, tidal energy power generation, and power generation on water mobile equipment. For wind power generation, the device can be installed horizontally or vertically, and the reversing blades and the steering blades are not easily affected by changes in wind direction. The wind from all directions can be used as the power of the reversing blades and the steering blades for effective utilization, which improves the force effect of the entire device and the working efficiency of the wind turbine generator without the need for a rudder. When the wind is acting on the reversing blade area, the reversing blade is stressed on the front side, so that the stress area is increased. At the beginning of the reaction, the reversing blades are driven by the fluid, and the reversing blades automatically unfold. When unfolding, they are controlled by the buffer mechanism, so that the opening angle of the reversing blades is greater than 90° and less than 160°. The direction of the fluid on the reverse side of the reversing blades is used to form a combined force, and the pressure difference between the positive and negative sides of the fluid is used to obtain effective lift. By directly converting a part of the reaction force fluid kinetic energy into useful work, the positive force is much greater than the reaction force, thereby fully achieving the purpose of efficient utilization of fluid kinetic energy. When the reversing blade plane is completely consistent with the direction of the fluid, the reversing blades are automatically reduced by the fluid to reduce the force area and reduce the resistance, so that the utilization rate of the fluid kinetic energy is the highest. Horizontal water power generation: install an existing generator above the surface of the river through a fixed frame, connect the generator shaft to the fixed wheel center axis of the center wheel with gears, chains or belts, and place the blades horizontally or vertically in the water to generate electricity using the flow of water; wave energy and tidal energy power generation: place the center wheel in the sea through a fixed frame to receive all the kinetic energy of the waves up and down and forward and backward, connect the center wheel center axis to the existing generator with a power transmission part, and generate electricity above the sea surface or under the seabed; power generation on water mobile equipment: install equipment and existing generators on ships or fishing boats, and generate electricity with the reverse water power generated when the ship moves. The purpose of utilizing fluid kinetic energy is achieved by directly converting part of the fluid kinetic energy into useful work.

[0030] The above embodiments are only used to illustrate the technical solutions of the present invention rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, a person skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features may be replaced by equivalents, and these modifications or replacements may cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A fluid kinetic energy enhancement device, characterized in that: It comprises a central wheel, a plurality of turning blades and a plurality of reversing blades, wherein the plurality of turning blades are installed on the central wheel in a divergent shape, the reversing blades are movably hinged with the turning blades, the reversing blades are arranged on a side of the turning blades facing the fluid direction, and the hinged opening angle between the reversing blades and the turning blades is 0° to 160°; A guide side wall is arranged on the side of the reversing blade facing the turning blade; the number of the guide side walls is two, and the two guide side walls are arranged on both sides of the turning blade respectively; A reversing auxiliary elevation angle is arranged at the end of the reversing blade away from the turning blade.

2. The fluid kinetic energy enhancement device according to claim 1, characterized in that: The height of the guide side wall gradually decreases from the hinge of the reversing blade to the end of the turning blade.

3. The fluid kinetic energy enhancement device according to claim 1, characterized in that: A bending portion is provided at the end of the turning blade, and the bending portion and the reversing blade form the reversing auxiliary elevation angle.

4. The fluid kinetic energy enhancement device according to claim 3, characterized in that: The bending direction of the bent portion is away from the turning blade.

5. The fluid kinetic energy enhancement device according to claim 1, characterized in that: The angle of the switching auxiliary elevation angle is between 90° and 120°.

6. The fluid kinetic energy enhancement device according to claim 1, characterized in that: A buffer mechanism capable of controlling the opening angle of the reversing blade is installed at the hinged portion between the reversing blade and the turning blade.

7. The fluid kinetic energy enhancement device according to claim 6, characterized in that: The steering blade is movably hinged to the reversing blade via a hinge shaft, and the buffer mechanism comprises a torsion spring, which is sleeved on the hinge shaft; one end of the torsion spring is connected to the steering blade, and the other end is connected to the reversing blade.

Images