TW201608126A - Typhoon resistance high efficiency turbines wind power tube - Google Patents

Abstract

(1) To solve the problem: Existing form of wind turbines only get wind of "kinetic energy" (Ewind=1/2 [rho] AV3). Wind touches blades are vanish in a flash, and the "mass-energy" and pressure of the wind cannot be fully retrieved. But when blades encounter a strong typhoon, they cannot withstand strong bland torque and will break or collapse. This problem must be solved. (2) Problem solving techniques: This invention installs wind stopper on both sides of the wide-type turbine and wind guide on front, as well as air recycling board on its back. Then it will fully capture the wind's kinetic energy and mass-energy as well as the pressure of the wind. In order to resist strong wind, a small wind friction cylinder will be used, with typhoon-proof door at its inlet and sliding door at its outlet. When encountering strong wind, these two doors will close automatically to resist strong typhoons. (3) Main use: Apply to general "static" wind power, as well as the "dynamic" wind power.

Description

Anti-typhoon high efficiency turbine wind turbine

The invention relates to a wind power generation device according to the technical field of "fluid mechanics".

In the current form of wind turbines, only the "kinetic energy" of the wind is obtained (E _wind = 1/2 ρ AV ³ ), and the "wind" touches the "blade", and the "mass energy" of the wind and the wind " The pressure cannot be completely extracted, so the blade efficiency is only between 30 and 45%. However, when the propeller blade encounters a strong typhoon, the blade is hard to withstand the strong "torque" and is broken or collapsed, such as the attack on August 8, 2015. The disaster caused by Taiwan’s “Sudile” typhoon; due to the huge volume of traditional wind turbines, considerable space must be used; and the noise of the wind turbines on the ecological environment can therefore only be set in the countryside or seaside far from the city. Finally, the cost of construction and maintenance of traditional wind turbines is too high, which offsets the power generation efficiency; these five major problems have caused the wind power industry to face bottlenecks in development, so it is necessary to break through and solve the previous technical difficulties.

However, if the blade efficiency is to be increased, if the number of propeller blades is increased, the distance between the blades is too small, and the turbulent flow caused by the rotation of the blades will affect the thrust of the latter blades, and the number of blades cannot be increased; In the case of the "Broad Turbine", if the number of blades is more than 3, the area of the resistance is always greater than the thrust. Although the turbine has a strong wind, It does not rotate, so when using a wide turbine, this problem must be overcome first.

The present invention is directed to the prior art problem of "anti-typhoon high-efficiency turbine wind power generation cylinder": (1) blade efficiency cannot be improved; (2) propeller blades are difficult to withstand strong "torque"; (3) large space must be used; 4) The noise of the wind turbine; (5) The construction and maintenance costs are too high; and these problems are broken one by one to comprehensively solve the previous technical difficulties.

The invention adopts a new thinking to change the "propeller" for obtaining wind energy into a "wide turbine". Therefore, it is necessary to overcome the problem that the "resistance" of the wind receiving area of the "wide turbine" is greater than the "thrust", and the turbine does not rotate. The problem, the technical means of its solution, and the actual test results are explained item by item as follows:

First: The present invention first notices that the wide turbine blade "saves" the wind, so that a "ballast" is added on both sides of the blade to stop the "wind" from escaping from both sides, and to keep the "wind" Inside the turbine blades, the "kinetic energy" and "mass energy" and "pressure" of the wind can be completely captured. See attached photo -1.

The present invention is an example of a "wide turbine" with a diameter of 30 cm and 12 blades. The wind blows the front of the turbine, and the portion that hits the "concave surface" of the blade is "thrust", the area [42%]; the impact on the "convex surface" Part is "resistance", area [58%], (the difference in the number of turbine blades, the distribution of thrust and resistance is slightly different); because the resistance area is greater than the thrust, the turbine is 4m / s, 5m / s, 6m / s Actual operation experiments with different wind speeds, although there is strong wind blowing, the turbine will not rotate (rotation speed 0 → 0 rpm), the problem that this will not rotate must be solved first. The wind distribution of the 12-blade wide turbine is shown in Figure 1, and is shown in Attachment Photo-2.

Second: in order to make the turbine rotate, it is necessary to change the distribution of the wind receiving area. Invented in the "wide turbine" blade "convex" wind receiving part, adding an up-sloping "leading wind deflector", the part of the resistance of the wind guiding thrust, thrust area increased from 42% to 69%, resistance area by 58% Reduced to 31%. The turbine is actually operated at a wind speed of 6 m/s, and the turbine rotates by itself, and the rotation speed is from 0 to 37 rpm. The wide turbine adds one wind deflector to the front wind deflector as shown in Figure 2, and see attached photo-3.

Third: The convex part of the turbine blade is exposed to the wind. Three upper “slanting wind deflectors” are added, and the wind of all the resistance is guided to the thrust. The thrust area is increased from 69% to 100%, and the resistance area is reduced from 31% to 0%. The air blow was actually operated at a wind speed of 6 m/s, and the turbine was smoothly rotated. The rotation speed was increased by 59% from 37 rpm to 59 rpm. The wide turbine adds three wind deflectors to the wind distribution as shown in Figure 3, and see attached photo-4.

Fourth: Add a piece of "lower curved deflector" to the triangular turbulent flow area below the "leading wind deflector", and turn the turbulent airflow into a "laminar flow" guide vane to reduce the viscous force of turbulent flow. . The air blow was actually operated at a wind speed of 6 m/s, and the turbine was smoothly rotated. The rotational speed was increased by 44% from 59 rpm to 85 rpm. The airflow direction of the turbine is shown in Figure 4, and see attached photo-5.

Fifth: At the turbine blade airflow discharge, a curved "airflow recovery plate" is installed to guide the discharged airflow to the blades to recover the remaining energy of the airflow in the blade. The air blow is actually operated at a wind speed of 6 m/s, and the turbine rotates smoothly. The rotation speed is increased from 76 rpm to 150 rpm by 76%. The turbine is equipped with a gas recovery plate, and the recovery of the exhaust gas flow is shown in Figure 5, and is shown in Attachment Photo-6.

Turbine installed air deflector and deflector and airflow recovery board and speed relationship test record table:

Sixth: The present invention also notices that the "gap effect" problem between the flow plates on both sides of the turbine blade and the side wall of the windbox is shown in the attached photo-7, because the high-speed airflow flows in this small gap, and turbulence is formed. The viscous force will damage the speed of the turbine, so the side wall of the windbox is specially designed with grooves. See the attached picture-8 to insert the flow plates on both sides of the turbine blade into the groove of the side wall of the windbox. Make the flow board and the windshield side wall smooth and without gaps, see attached photo-9, so solve the "gap effect" problem between the flow board and the windshield side wall.

Seventh: The present invention adopts a "wide turbine", in order to make the turbine more efficient and more complete, in particular, the axial portion of the turbine blade with the least force is vacated, so that the wind is concentrated at the outer end of the blade for widening Turbine torsion performance; and the generator is placed in the vacant part of the turbine shaft, so that the "turbine" and "generator" become the integrity of the integration, see Figure 6 of the schematic diagram. After being processed by the above seven technical means, the "wide turbine" has been improved and become a "high-efficiency turbine wind turbine" for "wind power generation" projects.

The invention adopts the "high-efficiency turbine wind power generation tube" to verify the performance of the propeller fan and the 12-piece wide-type turbine, and performs numerical analysis results under the same "diameter" condition, and the obtained wind energy (E _wind ) is from 258→344. If the blade width is estimated by 3.2m of the rotor rotation diameter, the obtained wind energy (E _wind ) is increased by 915% from 258→2,621; the problem that the previous blade efficiency cannot be improved is solved. . The efficiency of the propeller fan and the 12-blade wide turbine is shown in Table 1 and Figure 7:

In order to resist strong winds, the invention adopts a circular cylinder with a small "wind resistance", and an "anti-tower door" outlet for the installation of a "sliding door", which is automatically closed when strong wind is encountered to resist the strong typhoon and solve the propeller blade. It is difficult to withstand the problem of strong "torque". In addition, when the air inlet door is opened, the air inlet area can be increased, more air volume can be introduced, and more wind energy can be extracted; and the inlet door can be adjusted to "open" to control the air intake and keep the turbine at "speeding". Continuous power generation within limits limits power generation efficiency. See Figure 8 in the figure.

In addition to wind speed, the diameter of the impeller determines the amount of wind energy that can be extracted, which is proportional to the square of the diameter of the impeller. For example, the current commercial large and medium-sized wind turbines, the diameter of the 1,000Kw unit impeller is about 52m. According to the invention, the diameter of the impeller of the "12-blade wide turbine" is only about 30 m, which reduces the space by about 42%, the use area of the ground is small, the use space has no terrain limitation, and there is no long and large blade interference. Therefore, it is possible to increase the density and the number of installed fans, and solve the problem that a large space must be used. The relationship between the diameter of the commercialized medium and large-scale wind turbine impellers and the amount of power generation is shown in Figure 9 of the figure. The impeller diameter and power generation of the 12-blade wide turbine are calculated. See Table 2.

Table 2, Trial calculation of impeller diameter and power generation for the "12-blade wide turbine" unit:

The invention adopts "high-efficiency turbine wind power generation tube", and has no long and sharp "windmill blade", and does not have "wind cutting" sound, but uses a low-speed low-noise (2~10dB) permanent magnet generator, and Wrapped in the center of the turbine, there is almost no sound, thus solving the noise problem of the fan.

The invention adopts a vertical cylinder "high-efficiency turbine wind power generation tube", and needs to have a ground space, but can be stacked into a tower by multiple units, does not need a giant tower and a tower of high sorghum, and can be layered during maintenance. Therefore, the problem of too high construction and maintenance costs is solved.

Above, the five major technical problems that existed before have been fully solved; the breakthrough innovative device of the "anti-typhoon high-efficiency turbine wind power generation tube" of the present invention completely subverts the traditional mode of the current wind power generator, and the high efficiency and low cost and the right The characteristics of the environment with almost zero impact are unique to the present invention.

The apparatus of the present invention comprises: (1) an outer casing (with built-in sliding door); (2) an inner wall; (3) a turbine blade; (4) a blade fixing ring; (5) a flow plate (both sides of the turbine blade); (6) Turbine rotating disc and bearing; (7) central shaft strut and cable tube; (8) generator; (9) front deflector; (10) airflow recovery panel; (11) upwind turntable and bearing; (12) import Anti-Taiwan door; (13) outlet sliding door; (14) fan base; (15) head cover; (16) wind speed and direction meter, etc., combined to become "anti-typhoon high-efficiency turbine wind power tube". See Figure 10 in the illustration.

11‧‧‧ Shell (built-in sliding door)

12‧‧‧ interior wall

13‧‧‧ turbine blades

14‧‧‧ Blade retaining ring

15‧‧‧Flow plates (both sides of turbine blades)

16‧‧‧ Turbine rotating disc and bearing

17‧‧‧Center shaft pillar and cable tube

18‧‧‧Generator

19‧‧‧ front deflector

20‧‧‧Airflow recovery board

21‧‧‧Upwind turntable and bearings

22‧‧‧Imported anti-Taiwan door

23‧‧‧Exporting sliding door

24‧‧‧Fan base

25‧‧‧Head cover

26‧‧‧Wind speed and direction meter

Figure 1 is a wind distribution map (side) of a 12-blade wide turbine.

Figure 2 shows the wind distribution map (side) of a front air deflector added to the turbine.

Figure 3 shows the wind distribution map (side) of the three front air deflectors added to the turbine.

Figure 4 is a schematic diagram (side) of the airflow direction of the lower arc-shaped baffle added by the turbine.

Figure 5 is a schematic diagram of the airflow guide (side) of the turbine installed airflow recovery plate.

Figure 6 is a schematic diagram of the high-efficiency turbine and generator (side).

Figure 7 is a schematic diagram comparing a propeller fan with a 12-blade wide turbine.

Figure 8 is a schematic view of the typhoon-resistant high efficiency turbine wind turbine of the present invention.

Figure 9 is a schematic diagram showing the relationship between the diameter of the propeller wind turbine impeller and the amount of power generated.

Figure 10 is a block diagram of the typhoon-resistant high-efficiency turbine wind turbine of the present invention.

Since the blades of the wide turbine differ from the shape of the propeller blades in terms of blade efficiency, the calculation of the "power" of the power generation cannot be based on the general formula. Therefore, the turbine and generator design must be effectively integrated, and the optimal output power (Pm) is determined by wind tunnel experiments with wind speed (V) and rotor speed (ω).

The "anti-typhoon high-efficiency turbine wind power generation tube" of the present invention can be set in an "erect" or "recumbent" manner according to individual needs, and the diameter and height can be freely selected.

The "anti-typhoon high-efficiency turbine wind power generation tube" of the present invention has a smaller and quieter shape and does not harm the birds, and has little impact on the ecological environment, and can be brought into the roof of each household in a "wind field".

The invention is applied to "static" wind power generation, and multiple "anti-typhoon high-efficiency turbine wind power generation cylinders" can be stacked in a stack of 1, 2, 3 units (in a structurally tolerable range) according to individual needs. "Wind power tower" saves more space.

The invention is applied to "dynamic" wind power generation, and can design a most suitable "high-efficiency turbine wind power generation tube" according to the shape and space of the vehicle, and is installed on the upwind surface of various traveling vehicles or ships to obtain the vehicle and the boat. Wind power generation at "relative speed". See attached photo -10.

11‧‧‧ Shell (built-in sliding door)

12‧‧‧ interior wall

13‧‧‧ turbine blades

14‧‧‧ Blade retaining ring

15‧‧‧Flow plates (both sides of turbine blades)

16‧‧‧ Turbine rotating disc and bearing

17‧‧‧Center shaft pillar and cable tube

18‧‧‧Generator

19‧‧‧ front deflector

20‧‧‧Airflow recovery board

21‧‧‧Upwind turntable and bearings

22‧‧‧Imported anti-Taiwan door

23‧‧‧Exporting sliding door

24‧‧‧Fan base

25‧‧‧Head cover

26‧‧‧Wind speed and direction meter

Claims (9)

A wind power generation device comprising: a "turbine wind turbine", wherein at least one vane type turbine is provided for acquiring wind energy; the turbine is provided with at least a central shaft, a vane retaining ring, a vane, and rotating discs and bearings on both sides. And a set of pedestals and top covers (two side brackets in the horizontal position) to support the main part of the turbine and the rotation; the left and right sides of the wind tunnel are provided with partition walls (outer casing and inner wall), and the front and rear are vacated Used for intake and exhaust, combined with a turbine to become a "turbine wind tube." According to the "turbine wind turbine" of the first application of the patent scope, the "turbine wind turbine" on both sides of the turbine blade further comprises means for preventing the "wind" from being lost from both sides, and the wind is caught in the turbine blade, so that the wind The "kinetic energy" and "quality energy" and "stress" can be fully absorbed. According to the "turbine wind turbine" of the first application of the patent scope, and the "ballast" device of the second item, which further includes grooves on both sides of the wind turbine for inlaying the flow plates on both sides of the turbine blade Into the groove of the wind tunnel, so that the flow plate and the wind tube base and the top cover can be smooth without gaps, avoiding the high-speed air flow flowing between the flow plate and the wind tube to form a turbulent flow, and the viscous force of the turbulent flow is damaged. The speed of the turbine. The "turbine wind turbine" device according to the first aspect of the patent application further includes an oblique "front air deflector" device (2 to 3 pieces) for guiding all of the wind to the convex surface of the turbine blade (resistance) to the concave surface The thrust makes the "thrust area" reach 100%. According to the "turbine wind turbine" device of the first application of the patent scope, it further includes a curved "airflow recovery plate" which is arranged behind the turbine and is arranged at the air discharge discharge. The airflow is directed to the blades to recover the remaining energy of the exhaust stream, resulting in an increase in "energy efficiency." According to the "turbine wind turbine" device of the first application of the patent scope, it further comprises a circular cylinder with a smaller "wind resistance" to resist strong winds, and a "sliding door" for the entrance of the "anti-push door". When it encounters strong winds, it automatically closes to resist the strong typhoon and becomes an anti-typhoon high-efficiency turbine wind turbine. In addition, when the air inlet door is opened, the air inlet area can be increased, more air volume can be introduced, and more wind energy can be extracted; and the inlet door can be adjusted to "open" size to control the air intake volume and keep the turbine speed at "speeding". Within the limits, continuous power generation can be achieved. According to the "anti-typhoon high-efficiency turbine wind turbine" device of claim 6 of the patent application, the device further includes vacating the axial portion of the turbine blade with minimal force to concentrate the wind on the outer end of the blade for increasing the turbine torsion. Efficiency; and the generator is placed in the vacant part of the turbine shaft, so that the "turbine" and "generator" become the integrity of the integration; and the generator is wrapped in the turbine, so there is almost no fan noise. According to the "anti-typhoon high-efficiency turbine wind turbine" device of the scope of the patent application, it further includes the application of "static" wind power generation, and multiple "anti-typhoon high-efficiency turbine wind power generators" can be stacked according to individual needs. 1, 2, 3... (within the structurally affordable range), combined into a multi-layer "wind power tower" to save more space. According to the "High-efficiency Turbine Wind Turbine" device of the first to fifth patent applications, it further includes the application of "dynamic" wind power generation, and the most suitable "high-efficiency turbine wind power generation tube" can be designed according to the shape and space of the vehicle. It is installed on the upwind surface of various vehicles or ships to obtain wind power for "relative speed" of vehicles and ships.