KR20120126002A - High Performance Two Way Gearless Tidal Power Plant using Synchronized Dual Drive Axles - Google Patents

Abstract

PURPOSE: A gearless tidal power generator with high performance capable of bidirectionally using tidal current by synchronizing two vertical driving shafts is provided to generate energy with easily controlling the amount of layers of a turbine blade according to the depth of water. CONSTITUTION: As to a gearless tidal power generator with high performance, two vertical driving shafts are horizontally installed to the flowing of seawater, and rotate with interlocking each other. The driving shafts are synchronized, and vertically deliver rotary power to a generator using two bevel gear housings. Blades on each level are placed at the same azimuth, and interlock each other so that the seawater flows in between the blades.

Description

TECHNICAL FIELD [0001] The present invention relates to a high-performance gearless tidal power plant capable of using two-way algae synchronizing two vertical drive shafts to drive a single generator,

The present invention relates to a two-axis drive, two-way tidal power plant, using the active intelligent turbine blade technology to synchronize the two vertical shaft drive shafts so that the blades of both shafts interlocked with each other and the flow of the tidal current entering the two drive shafts using the guide door The present invention relates to a high-performance algae power plant capable of maximizing driving power and driving a generator without a gearbox in both directions for tidal currents and ebbs.

Today, wind power and photovoltaic generation, which are attracted by renewable energy, are heavily influenced by diaries. Wind power cannot generate power without wind, and it is difficult to predict the occurrence of wind. Solar power cannot generate power in the dark, rain, or at night. Although it has not appeared, it is a very attractive clean energy technology because it is predictable and can be operated 24/7 except for a certain time. In the tidal power generation, unlike tidal power generation using tidal dams and tidal power generation, it selects a place where tidal flow is fast and installs a water generator at that point, and operates a water generator installed using natural tidal flow. It is to make progress. Therefore, the installation of only aberration generators needed for power generation without tidal dams is inexpensive, while it is difficult to select a suitable site, and the amount of generation depends on the strength of the natural flow of the current. In terms of environment, it is regarded as more environmentally friendly development than tidal power because of the free distribution of seawater and little impact on the marine environment.

Algae generation produces electricity by rotating aberrations using kinetic energy of fluids, like wind power, but using seawater flow instead of wind. The reason that tidal power is more attractive than onshore wind power is that the size of tidal current turbines is generally much smaller than that of wind turbines at the same capacity because seawater density is about 840 times larger than air. Generally, the energy generated by the fluid flow increases exponentially with the flow rate, and therefore, a large flow rate is absolutely advantageous for algae generation.

Turbines of tidal power generation are divided into horizontal and vertical turbines as well as wind turbines according to the direction of rotation of the turbine. In the case of horizontal axis, it is advantageous for one direction flow, that is, for maintaining a constant flow like a river, It is advantageous when the direction of the flow is changed as shown in Fig.

Turbine models that are currently considered to be used in the vertical axis include the helical turbine type and the dabis turbine type. The disadvantages of these are the use of fixed blades. Because it does not generate a lot of vortex and as a result has the disadvantage of low efficiency. Vortices that cause this problem will eventually reduce the flow rate, which in turn decreases the power generation efficiency.

Therefore, in the present specification, the active intelligent blade control technology (patent application 1020100049453) was applied to develop a high-performance algae power plant capable of biaxial drive / bidirectional power generation. As mentioned above, the density of seawater is about 840 times larger than that of air, so the length of the turbine blades exerting the driving force can be much smaller than that used in wind turbines, resulting in a smaller system size and compact drive shaft arrangement. I will. And while it becomes easier to focus the ocean currents more artificially or to increase the flow rate even under given conditions, the density is high and there is a need to solve the problem of leakage.

In the present invention, active vertical turbine blade technology is used to horizontally arrange two vertical drive shafts horizontally in a vertically flowing current so that the incoming seawater passes between turbines such as two gears where the blades can be engaged. There are two reasons for this power generation system. One is to induce the energy density of the seawater in the center between the two axes and the axis where the driving force is generated, and to increase the energy density of the seawater. This is because it is easy to cut off the energy loss by blocking it, and the other is to install a gearless generator and eliminate the gearbox which requires high installation and maintenance cost in power plant installation and operation.

In the present invention, the tidal current power generation system uses its own Active Intelligent Blade Control Technology to achieve the best power generation efficiency, and the two drive shafts are selected by using one of two generators to run one generator in both directions without using a gearbox. .

(1) These tidal power plant units are to be capable of being installed independently, and one unit may be fastened to each other so that several units may form a single large tidal power generation block. By doing so, it will be possible to enlarge the system, form a power plant, generate large capacity, and reduce the cost of maintenance.

(2) As mentioned above, to apply your Active Intelligent Blade Control Technology, you will have to use a very precise and vibration-free cam and follower.

(3) It is required to eliminate the accelerator with high installation cost and high maintenance cost. Decide whether to place the gearless generator underwater, on the water, or where. And in order to satisfy the requirement of the gearless generator, it must be able to satisfy the requirement that the relative speed between the permanent magnet and the power generation coil must be high. This is because the same effect can be achieved as if the accelerator were equipped.

(4) And due to the nature of the drive shaft, which must be installed underwater, not in the air, the Blade Control System Housing, which accommodates the cam and follower that controls the blade, should be designed with the highest water resistance in mind to protect the system.

(5) The method of increasing the efficiency in driving the tidal power generator approaches from two aspects. One is to raise the turbine system itself with a new idea, and a method to artificially increase the amount of incoming seawater with flow energy.

(6) and a system that works on the bottom and ebb flow which are two directional flows of seawater.

(7) In addition, bevel gears in lieu of gearboxes should be adopted to implement a mechanism to efficiently transfer the torque from both drive shafts to both drive shafts of a single generator. And at the same time, a housing is required to accommodate the Cam Control Axle and the Drive Axle.

(8) And above all, the shape of the platform that will support and maintain the above-mentioned functions and equipment is also very important, requiring a framework for tidal power plants that maintain stiffness from seawater resistance and strong winds and that the system itself does not impede the flow of seawater. .

(9) Also, the two drive shafts that generate the driving force must determine how many blades are to be mounted on several layers. A method of increasing the efficiency by increasing the amount of seawater entering the blade should also be considered.

To solve item (1), a square platform is required to enable one unit to operate independently and to be a group. By doing so, they will be able to join in parallel and the structural stiffness will also increase. And the pillars of the system supporting the platform may be constructed using round pipes to help reduce seawater resistance.

In order to solve item (2), a cylindrical cam should be used and a model with curved surface of cam running guide seems to be needed. Because, unlike wind, the resistance of the seawater to the blades in the water will be much higher, so in order to accommodate such a large pressure, the driving surface of the cam must have a curved surface that can receive the follower's spherical roller in a large area. need.

In order to solve the problem of (3), it is necessary to increase the relative rotation speed between the permanent magnet of the generator and the coil. The best way to connect the aberration of the vertical axis drive with the generator is to install the generator horizontally on the water. It is expected to be effective. In order to connect such a generator with a vertical drive shaft, a device that connects two parts at a right angle is required. By increasing the gear ratio possible in the barbell gear, the rotational force transmitted from the drive shaft of the blade to the generator shaft can be increased, and the generator can increase the diameter of the generator as much as possible to increase the relative speed between the permanent magnet and the power coil.

(4) Since the water pressure increases in proportion to the depth of the water, it is necessary to block the water penetrating into the system based on the water pressure at the lowest point of the blade driving shaft. To do this, high quality waterproof bearings will be required and they must be fitted with long maintenance / maintenance parts. In recent years, oil-free waterproof bearings are commercially available among the products developed for seawater, and this product needs to be adopted. And if oil-free bearings are a passive countermeasure, it would be very helpful to protect the system if the method of actively blocking water is also used. Its active countermeasure is to fill the voids in the blade drive shaft with a light, viscous lubricant to prevent water ingress beforehand by equilibrium with the hydraulic pressure, or a higher hydraulic pressure, equal to or higher than the lowest hydraulic pressure. This method lubricates the cam and follower and prevents water penetration at the same time. Therefore, it is considered to be a good method. As a second alternative, if the lubrication problem is solved by the cam and follower in a different way, nitrogen gas can be applied to If you increase the waterproof function by charging it seems to be a good way. In addition, the waterproof function can be monitored by installing a lubricant gauge or by attaching a pressure gauge to observe the change in air pressure.

The solution of (5) and (6) is to improve the efficiency of the system. If the method of maximizing the function of each component is internal method, it is advantageous to generate the flow of seawater coming into contact with the system from the outside. It is possible to direct it in the direction. To meet these requirements, a guiding system is required to guide the seawater in any form. Such a guide system would have to create a passageway through the valve to guide the seawater to the blade drive shaft. In addition, if the seawater flowing into the drive shaft is driven around the blade to be in contact with the blade at a wide azimuth angle, the efficiency will naturally increase. And, in response to the direction of the seawater, we can optimize it at the bottom and at the bottom of the tide. To do this, the guide door drives the seawater to the drive shaft at the entrance face, opens the door freely from the exit side, and reverses the flow when the flow rate flows.

In case of (7), it is a kind of gear box type and it can be manufactured to correspond to the center of shaft of generator. In the case of (8), four cylindrical pipes can be piled up on the seabed, structured, and a platform on top of the water surface to operate as a single unit or multiple units. In the case of (9), two drive shafts constitute one pair, and the blades of each shaft will be opened and closed at the same time as two pairs of swing doors, and the purpose of installing five layers of blades based on the general shallow water depth It was made. In addition, the number of blades in each layer is 25 in each of five, and both blades have 50 blades.

In the case of tidal power generation, tidal dams must be constructed, which causes severe damage to the ecosystem and generates a lot of complaints, but in the case of tidal power generation, it is installed in naturally flowing sea water without any water barrier. Very cheap compared to In the case of the Republic of Korea, which is surrounded by sea on three sides, there are lots of islands, so that there is a lot of places where there is a fast flow of algae, so the potential total amount of algae energy is enormous. In order to effectively use this energy, the present invention is very suitable to easily increase the output and to easily control the number of layers of the turbine blade layer according to the depth. And is an ideal model for an alternative to the global carbon emissions reduction policy.

Figure 1 Figure 3 shows the rollers used for the cam followers having the same diameter of curved surfaces in either direction by running 34.8 millimeters of spheres.
Figure 2 Shows a roller to be used for two cams and a follower.
Figure 3 Is an exploded view of a cam follower using a fixed arm / moving spline roller.
4 is an exploded and assembled view of a cam follower using a moving arm / fixed roller.
5 is a view of the shape of the turbine blade employed in the present invention.
Figure 6 Is a front view and a cutaway view of the cam housing used at the bottom first stage of each drive shaft.
Figure 7 Front and cut views of the cam housing cover.
Fig. 8 is a front view and a cutaway view of the cam used for 2, 3, 4, 5 steps.
Figure 9 is a state in which the engagement device and the cam and the housing for preventing torsion when the cam housing is fastened.
Fig. 10 is a cutaway and front view of the structure supporting the drive shaft from above and supporting the Bevel Gear housing;
11 is a front view and a cutaway view of the bevel gear housing;
Fig. 12 is a cutaway view of a female spline embedded in and a view of a helical gear used in a bevel gear;
Figure 13 is a linking device including a horizontal bevel gear to connect the driving force from the bevel gear of the drive shaft to the generator and a flexible coupling to link the bevel gear and the generator axle.
14 is a view of a female spline and a spring used in the linkage.
Figure 15 Figure 13, the appearance of the linkage device combined parts of Figure 14.
Fig. 16 is a view of connecting a generator with a bevel gear and link device having a driving ratio of 3.7: 1.
Figure 17 is a cross sectional view inside the Bevel Gear Housing;
18 is a lubricating oil level indicator for leak detection and maintenance of a lubrication system employed in the present invention.
Fig. 19 shows the lube oil indicator and the bevel gear housing engaged with the generator through a link.
20 is a view showing a method of attaching a permanent magnet and a cooling method attached to the rotor inside the generator.
Fig. 21 is a view of the outer and inner sections of a 30 pole diameter 1m 20cm generator.
Fig. 22 is a transparency of the Flow Control Guide Door employed in the present system.
Figure 23 is a schematic drawing of the hinge for mounting the door of Figure 22;
24 shows a flow control stabilizer supporting the drive shaft from below and blocking vortices from connecting pipes coupled with the underwater structure of the surrounding system.
25 is a view showing an idea for increasing the energy efficiency applied in the present invention.
FIG. 26 is a top view of a system showing the basic idea of the present invention for concentrating incoming seawater to increase efficiency to increase flow velocity and energy density. FIG.
Figure 27 is a front view of the lower structure used in the present invention.
Figure 28 is a right side view of the substructure used in the present invention.
Figure 29 Is a bird's eye view of the underlying structure used in the present invention.
Figure 30 The platform of the superstructure used in the present invention.
Fig. 31 is an internal view of the drive shaft first stage cam housing engaged with the foundation structure.
Fig. 32 is a view showing a discharge passage to be used when preventing lubricating oil and performing maintenance / repair.
33 shows the waterproofing system of the cam housing.
34 is an external view of a cam housing to be coupled to 2, 3, 4, 5 stages.
35 is an interior view of a cam housing to be coupled to 2, 3, 4, 5 stages.
Fig. 36 is a view of transparency and appearance of the connection of the cam housings coupled to 2, 3, 4, and 5 stages.
Fig. 37 is a view showing the inside of the cam housing by making the cam transparent.
38 is a view showing the cam inside the cam housing.
Fig. 39 is a view of the cam from above showing the inside of the cam housing;
40 shows the drive shaft with all the blades mounted;
41 is a bird's eye view of the present tidal power plant in which all parts are combined;
42 is a front view of the present tidal power plant;
FIG. 43 is an intermediate cutaway view of the present system showing driving one generator by synchronizing two drive shafts. FIG.
44 is a detailed view showing driving one generator by synchronizing two drive shafts.
Figure 45 Is a right side view of the algae power plant.
Figure 46 Is seen side view of algae power plant.
47 is a top view of the present tidal power plant.
48 is a view illustrating the configuration of an algae power plant by connecting the algae power plants in parallel.
Figure 49 Top view of the algae power plant by connecting the algae power plant in parallel.

In the present invention, the patented technology employed in the wind turbine was used, and as shown in FIG. 1 , the roller of the follower was designed using a spherical ball. The diameter of the ball used here is 34.8 mm and the diameter of the guide curve of the stone cam is 35 mm on which this roller rides. This is to reduce the shock and resonance when the power plant is running by increasing the precision of the cam and reducing the vibration. As shown in Fig. 1 , the spherical roller may incline as much as 15 degrees on the guide curve of the cam, but even then, the spherical roller is essentially adopted because it does not generate play on the guide curve of the cam.

2 shows that the guide road surface of the cam is curved in the present invention so that the driving force transmitted from the blade is in contact with the curved surface 100 of the roller and the curved surface 101 of the cam to reduce the fatigue load on the parts and increase the life. Denoted at 102 is a guide curve through which the spherical roller of the follower will pass, the upper left is a cam for rotation clockwise and the right is a cam for rotation counterclockwise. Therefore, the cam on the left side is used for the drive shaft on the left side, and the cam on the right side is used for the drive shaft on the right side.

3 is a cam follower of a fixed arm / moving spline roller type and is one of two follower models used in the present invention. 103 is a bearing that will support 105 so that the follower is mounted to the cam housing and the rotation is maintained by these two bearings. Reference numeral 104 is a locker attached to 106 to prevent the follower from detaching and is fixed by bolts 107. 108 is a fixing arm and allows the spherical roller 110 to move in the axial direction on the spline 108 to prevent separation with the snap ring 111. This spline cam follower is very useful for large wind turbines or offshore power generation. When fixed arm is used, the roller is placed on the cam guide surface because the roller's extension line meets the center of the drive shaft. Sliding does not cause friction. This sliding phenomenon is a big obstacle that cannot be ignored in the device of a large structure, and it serves to shorten the life of the guide road due to fatigue accumulation. Therefore, in the present invention, the system is designed to be used by the followers of FIGS . 3 and 4 .

Figure 4 Is a waterproof follower of Moving Arm / Fixed Roller Type and adopts bearing 113 with waterproof function. The reason for adopting this bearing is that the drive shaft of the present invention is installed in water. Reference numeral 112 is a portion to fix the blade (114) is a locker for fixing the bearing 115 to 116 and the hinge hole of the arm (120) is fastened with (117) to be mounted with a metal bearing ((119) Of course the rollers (bearing 123 is mounted on the arm 120 and fixed by the snap ring 122.) The follower will be suitable for small and medium sized systems. The system of FIG. 3 and the follower of FIG. 4 are available, and the follower of FIG. 4 is employed.

5 is a shape of the blade employed in the present invention, 124 is a view from the connection portion, 125 is a view from the end of the blade and 126 is a view of the blade from the side. The blade is designed to be longer than the width of the blade to reduce seawater resistance and reduce moment of inertia when the Cam is operating. And 127 is asymmetrical when viewed from the cross-sectional direction of the blade is to attach the cam follower to reduce the vibration and resonance and the load on the cam during operation.

Figure 6 Is the bottom one-stage cam housing, and the difference from the other cam housings is sealed at the bottom to increase the waterproof function. Thus, when mounted on the drive shaft of the system, the waterproof bearing 234 is mounted to the bearing fixing part 229 so that the tab of 133 is fixed to the support of the drive shaft. This cam, like other cams, must withstand water pressure at all times, so there are two Double 'O'ring grooves. The upper part (128) combined with the cam cover doubles the hydraulic pressure, and (129) is also designed as a Double 'O'ring to be sealed from the follower's waterproof bearing. Reference numeral 130 is a portion to which the thrust bearing to support the load of the entire drive shaft is mounted, and 131 is a concave section to be connected to the protrusion with the cam cover for transmitting the driving force without loss. Reference numeral 132 denotes a bearing locker fixing tab of the Cam Control Axle, and reference numeral 135 denotes an edge which reduces the volume of the space, leaving only the accommodation space of the cam, in order to minimize seawater resistance. 134 is designed to be used as a space where the lubricant of the cam and the follower will be stored.

Fig. 7 is a cover of the cam and at the same time, the insertion space of 138 is secured to accommodate another cam housing from above, thereby increasing the rigidity of the drive shaft. The cam cover also has a double 'O'ring groove 136 in consideration of waterproofing, 137 is a screw tap for fastening and 141 is a locker tap of a cam cover bearing to be inserted in (140). This cam cover is designed with the focus on the rigidity and waterproof of the drive shaft. And (139) attempted to reduce the resistance of the seawater to the same diameter as (135) of the cam.

Fig. 8 is cams of Levels 2, 3, 4, and 5, and the difference from Cam No. 1 is that the central part is opened to accommodate the Control Axle, and the eight large bolts are fastened to the other cams for the holes 144. In the head sub-group of holes, eight grooves 147 of 'O'rings were placed to increase the waterproof function. In addition, the double upper 'O'ring grooves 142 were placed like the first cam, and the lower double'O'ring grooves 146 were also designed to be combined with the (138). 145 is a double o-ring groove that will enclose the watertight bearing and supports bearing 149 and space 148 to accommodate the Control Axle. The five slots are the channels through which the bearings to fasten the follower are inserted, and the bearing lockers are also inserted there.

Figure 9 shows the convex 152 and the concave 150, the contact surfaces of the two parts, to which the cam housing and the cover will deliver a definite power to the fastening screw of the part, with the idea that all five cam housings are fastened. The figure on the far right shows. 151 is the already mentioned double waterproof 'O'ring groove.

FIG. 10 is a supporter of a bevel gear housing ( FIG. 11 ) which serves to secure a drive shaft at an upper platform and to connect a bevel gear to a spline at the top of the drive shaft, thereby transmitting a driving force in a horizontal direction. Denoted at 153 is a bolt hole to fix it to the upper plate of the platform, and 154 is a space where a bearing to accommodate the vertical bevel gear is to be loaded. Below 156 is a receiving space of the bearing to be coupled with 191, which is the upper link part of the drive shaft. And 155 is a gauge connector for monitoring the level of lubricating oil injected for lubrication and waterproofing, 157 is a hole to which a nozzle to be used as an outlet of gas or steam is connected, and 158 is a drain plug connector for adjusting the flow rate.

FIG. 11 is a Bevel Gear Housing, which converts the driving force transmitted from the drive shaft by 90 degrees, and transmits it to the generator, and has a function of maintaining and supporting five cams in the drive shaft. Of course, by installing a worm gear on the upper part of the housing, the Cam Control Axle can be manipulated to attach a device that can precisely adjust the angle of the cam according to the flow direction of the seawater. 159 is a cooling fin for cooling and 160 is a hole into which 23 thick bolts will be inserted to control the torsion coming from the Cam Control Axle. 161 is a hole in the bolt to enter into the housing to be secured to the top 10. Reference numeral 162 denotes a waterproof O-ring groove, 163 denotes a space in which the bearing 183 is to be loaded, and 164 denotes a groove of the bearing to accommodate the horizontal axis bevel gear.

Figure 12 Is a vertical barbell gear (165) is a space to be equipped with a bearing to accommodate the control axle inside. This barbell gear is fixed in position by a bearing inserted in the excitation 165. Reference numeral 165 is a helical bevel gear designed with a gear ratio of 3.7 , and primarily serves to assist the function of the gearless generator adopted in the present invention. Therefore, this design can increase the gear ratio to a certain degree as needed, so that it can serve as a speed increaser without a speed increaser. This function, in combination with the large-diameter generator, increases the relative rotational speed between the permanent magnet and the coil of the generator to satisfy the design requirements of the gearless generator. This function is very attractive among the structural environments given in the present invention. 167 is a female spline in conjunction with FIG. 18 (189).

13 is a dual spline linker including a horizontal axis bevel gear and flexible coupling. 168 is Male Spline and 169 is Flexible Coupling. This joint was inserted midway to absorb the torsional stresses between the connecting parts resulting from the error when the axis of the bevel gear does not exactly match the axis of the generator. Reference numeral 170 is a groove of the snap ring to prevent separation after being installed in the bevel gear housing, and 171 is a position where the bearing to be inserted into 164 is located. And (172) is the Helical Gear that is physical with (166).

Reference numeral 173 in Fig. 14 denotes a spline which is bitten by the power shaft of the generator and 174 is a female spline which meshes with the spline of the horizontal axis bevel gear. And (175) below is a spring that will keep the connection to prevent the separation by close contact with the two splines from side to side. There are two types of springs, two on each side and four on each side. The assembled part is as shown in FIG.

15 is a power linker for easily removing a generator during installation and maintenance of the drive shaft of the present invention system.

Fig. 16 shows the internal Bevel Gear by opening the cover of the Bevel Gear Housing, and shows that it can be driven by spline linker connecting the rotating shaft of the generator with the gear ratio of 3.7 used here. This Bevel Gear Housing is filled with Differential Gear Oil to reduce the friction and heat generated from the gears.

Figure 17 Is a detailed view showing the inside of the Bevel Gear Housing, and (176) is a bearing to fix the position and position so that the double thrust roller bearing and the vertical axis Bevel Gear of (183) cannot be separated, and this bearing is the housing cover (179). Position is maintained. 177 is a lubricating oil monitor and the lubricating oil is filled in the empty space inside the same system. The upper bevel gear housing is filled with differential gear oil, while the empty space below is filled with transmission oil. The reason for filling oil up to this point is that the cam housing is submerged and operated in case of seawater invasion with high water pressure. In contrast, the internal hydraulic pressure is slightly higher than the water pressure to enhance the waterproof function. Therefore, if the waterproof function is broken and the oil leaks into the seawater, the level of the oil monitor (177) will change and you will know that it is time to repair the drive shaft. Without the ability to use this oil, the waterproofing is broken, causing the cam, follower, and submerged plain bearings to be damaged, and the drive shaft to malfunction. Reference numeral 178 denotes a connector installed for input or discharge of oil or compressed nitrogen gas through the central passage of reference numeral 185, and reference numeral 180 denotes a spline coupling part of a control axle. Since the coupling parts must accommodate all the torsional stresses generated by the cam, the bolts are coupled to the housing cover using many bolts. In addition, 181 is a spline that links the vertical axis of the bevel gear and the end of the drive shaft and absorbs the shock when the drive shaft is bent finely due to the vibration of the drive shaft or the drive pressure of the seawater or the height of the platform causes the height change due to the vibration. Spaced vertically so as to. Reference numeral (182) is a bearing for fixing the horizontal bevel gear, and this horizontal bevel gear prevents the release by inserting a snap ring at the bearing end of the right side. The two thrust bearings 183 function to firmly support the vertical axis bevel gear to rotate precisely without being affected by the vibration from the spline of the drive shaft. 184 is the Control Axle and 187 is the Supporter of the Bevel Gear Housing.

18 is a coupling view of the upper link part 190 of the drive shaft and the bearing 188 is in contact with the rim of 191 to prevent the drive shaft from lifting upward and to enable smooth rotation. (189) is a male spline connected to the female spline of the vertical bevel gear. 192 is used when fixing to the cover of a five-stage cam housing with eight bolt holes. And 193 under the drive shaft link part 190 has two O-ring grooves for waterproofing.

19 is a view of the drive shaft on the left side of which the bevel gear housing and the generator are fastened using spline ( Fig. 15 ) at both ends, and it can be seen that it is one of the core devices of the two-axis drive bidirectional tidal current generator.

Fig. 20 shows the rotor of the generator, in which the thirty red rod-shaped parts are permanent magnets 197. The turbine blades 194 attached to both sides of the rotor shaft force the ventilation between the central lattice frames 196 so that the internal temperature of the generator is not overheated. And 195 is a fixing device for fixing the permanent magnet 197 to the outer wall of the rotor. This groove prevents the generator from separating due to centrifugal force when the generator rotates at high speed.

21 is a cutaway view of the outside and inside of the generator. The two generator body fixing frames 198 and 201 have eight fastening screw grooves for the purpose of charging the generator's cylinder ends 199 to be fixed to the upper platform of the power plant. In addition, 200 is a cooling pin to prevent overheating of the generator along with the 196. The number of permanent magnets 202 used here is 30 and the power coil 203 is also designed with 30 poles to generate high frequency and voltage. 204 is a spline connecting the drive shaft of the generator. The diameter of this generator is large diameter of 1m 20cm, which is a Bevel Gear Ratio of 3.7, which increases the rotational force without increasing the speed of the gearbox. To raise to the maximum. This is to eliminate transmissions that cause high installation costs and frequent failures in the generator. Therefore, such a generator structure can be combined with the driving mechanism of the present invention to produce the highest power generation efficiency. And the Bevel Gear Ratio and the large diameter generator make it possible to generate high efficiency without any transmission.

Fig. 22 is a flow control guide door, two at the inlet to which seawater is introduced, two at the rear of the discharge, and four in total. The function of this door is to play an important role in increasing the flow rate by inducing seawater between the two drive shafts and extending the torque-prone azimuth of the blades to increase the overall power generation efficiency. For ease of understanding, the doors are made of non-ferrous metals or alloys that are transparent to the drawing but are resistant to corrosion.

FIG. 23 is an exploded view of the hinged door of FIG. 22 and designed to operate smoothly without friction with two thrust bearings. The door is attached to the lower and upper four holes 206 and will be connected around the shaft 211. The 206 and 209 attached to the door are seated on the inner shaft ring 208 of the lower thrust bearing 215 and the lower bearing 215 rotates below the empty play so that the inner shaft ring 208 can rotate freely without friction. (214) is secured. Under these conditions, a part is required to be hollowed so that the (206, 209) cannot be removed, and another thrust bearing (210) is inserted at the top of the (206, 209) to pass through the inner ring (207) to (211). Insert it into the housing and fasten with the set screw (213). That is, the doors (206, 209) attaching the door is put on the outer shaft ring 212 of the top and moves by riding the inner shaft ring 208 of the bottom (211) is fixed to the hinge housing and this (211) is the upper inner While holding the shaft ring 212 does not touch the inner shaft ring of (215). Thus, a new method of constructing a soft, long-lasting hinge with two bearings has also been developed.

24 is a base for supporting two blade drive shafts, 217 and 233 are fastened. And 216 is to block the vortex generated from the lower platform structure to average the flow of seawater entering the blades to help the role of generating a uniform driving force in the blade layer of each stage. 219 is a pipe fastening part of the substructure.

25 is a basic concept of driving the present system as shown in the figure. The two circles are the area generated by the rotation of the two drive shafts, and the two green semicircles at the center of the two axes are the driving force generation parts possible in the basic driving model of the vertical axis of the present invention. In order to increase the efficiency of the 20 degrees to 180 degrees was extended. Therefore, the arithmetic energy increase of about 11% was seen. In order to achieve this purpose, the guide door of FIG. 22 is required, and the two doors will increase the flow velocity as the flow rate is centered as shown in the drawing (see the four red arrows on the left and right sides). In addition, the drag generation section is reduced by the red pie portion, which is expected to be 11% plus alpha. The guide door to perform this function has the effect of profit.

Fig. 26 is a view of the present algae power generation system cut from the middle of the upper part and shows the concept of Fig. 25 being actually executed. When two guide doors at the seawater inlet drive the current to the center, the seawater causes the drive shaft to rotate as the flow velocity and flow rate increase, and the two doors at the outlet side freely open to prevent resistance from the discharged seawater. On the other hand, if the current flows in the reverse direction as the direction changes over time, the two doors of the outlet automatically close halfway in the opposite direction to induce the entry of seawater, and at the same time, the two doors at the bottom open freely to help the algae discharge. These two functions enable the efficient use of bidirectional algae.

Figure 27 Is a front view of the frame structure excluding the driving shaft, and shows four main pillars, four door pedestals, four guide doors, and two driving shaft bases.

Fig. 28 is a view of the lower structural frame from the right side and four guide doors are clearly seen. And you can see (225) that functions to support the door.

FIG. 29 is an inclination of the lower structural frame, in which two tidal flow inlet guide doors 219 and two discharge guide doors 223 are located behind them, and serve to hold these doors in a predetermined direction when seawater is introduced or discharged. There are four bars 220, which are attached to the rubber shock absorbing material 224 for a long time.

Figure 30 is the upper platform and was treated with transparency to help understanding. The two towers in the middle are the Bevel Gear Base, with four holes in all four corners to accommodate the lower pillars.

Figure 31 illustrates a state in which the lower end of the drive shaft is fastened to the base of the lower portion. 226 is two waterproof O-ring grooves, 227 is a bearing to fasten the follower and 228 is the edge of Axle causing the Control Axle 230 to be held by the bearing 232. As the bearing is inserted up and down at this corner, the control axle is fixed to the center of the drive shaft without being detached. The upper bearing in the bearing 232 is fixed by the locker 231 do, and the lower bearing is fixed by the inner edge of the cam. Reference numeral 229 denotes a locker which secures the thrust bearing waterproof bearing 234 so as not to be detached, and the locker rotates together with the drive shaft. Reference numeral 233 is a part to be engaged with the base of the drive shaft.

Figure 32 shows the cylindrical cam is fixed to the fixing pin in the housing 235, this fixing pin is designed so as not to block the passage while allowing the flow of lubricant while fixing the cam. Neck 238 at the center of the fixing pin enables the flow of lubricating oil when the lubricant fills the empty space 236 or when the discharge is through the passage 237. The thread of this pin is located at (240), and the O-ring is installed at (239) to block the screw to prevent lubrication from entering the thread.

Fig. 33 shows the waterproof system of the cam, and the O-ring at the portion where the cam housing and the cover of the housing meet is quadrupled 241 to be completely blocked. Denoted at 242 is a double o-ring for sealing the top of the cam housing, and 243 is a double o-ring for the follower's waterproof bearing. In order to prevent leakage from these O-rings, the cam housing was filled with transmission oil or nitrogen.

Fig. 34 is an independent separated view of the structure in which the cam housing is completely arranged, and the double o-ring groove at the bottom is clearly visible.

FIG. 35 is a view of only the parts inside by removing the cam housing in the view of FIG. 34 ; FIG. Eight bolts are installed to engage the cam housing, and the center bearing shows that the bearing locker covers the head of the bolt and secures the bearing. In addition, it can be seen that the roller of the cam follower rotates differently depending on the position on the driving surface of the cam.

Figure 36 Is the transparency and general appearance of the two cam housings combined. As seen in transparency, one blade layer accommodates the cam housing and cover with two bearings to maintain the system. The eight strong bolts are used to provide secondary stiffness by using the cam housing and the cover of the housing in addition to the central control axis so that the drive shaft is not bent or deformed from the pressure from the seawater during power generation. In other words, the effect is to install another large diameter tube on the outside of the Control Axle. However, the volume of the cam housing was minimized in consideration of the resistance from seawater.

37 is a view of the cam housing removed from the top, and the cam in the center is transparent so that the rollers of the follower vary in angle on the driving surface of the cam according to each position.

FIG. 38 is a virtually identical view of the cam as shown in FIG . 37 . As shown in this 3D drawing, the cam housing is very compact to minimize seawater resistance.

FIG. 39 is a view of the cam and the cam housing of FIGS. 36 and 37 removed from the top and viewed from above. FIG. As you can see in the picture, you can see the arms of the five followers, the lockers that lock the followers, and the central locker across the cam. In addition, two O-ring grooves are installed on the rim of the cam housing, and 15 cover coupling tabs are visible outside of them. The O-ring groove is located outside the O-ring groove because it can block seawater leaking out of the bolt hole for waterproofing. .

Fig. 40 finally shows 25 blades mounted on a 5-layer, which is a blade angle setting when the seawater enters the 6 o'clock and 12 o'clock position of the photograph. On the left side of the shaft, the blades were laid horizontally to avoid the resistance of the birds, and on the right side of the drive shaft, the blades stood vertically and rotated counterclockwise with maximum water pressure. Therefore, it can be seen that the other right side of the two drive shafts is symmetrical to the opposite side of this drawing.

Figure 41 Is the appearance of the final combination of the system of the present invention and a detailed description immediately attached to the drawings. Figure 42 is a front view of the system of the present invention and the outline of the drawing has been removed so that the 3D drawing looks closer to the facts.

Fig. 43 is a view of the two-axis driven bidirectional tidal current generator cut vertically from the front side. In this drawing, the two drive shafts are moved up and down from side to side, bent from the Bevel Gear housing and synchronized to the drive shaft of the generator to rotate. As shown in the drawing, the 10 blades of the left and right are always passing the same time through the center of the system. The maximum drive torque is generated when the drive torques of the two drive shafts are in the state of the presently visible drawing. This phenomenon occurs as the rotating shaft rotates periodically, and for this purpose, the present invention adopts synchronizing the two driving shafts. And this synchronizing phenomenon occurs when the tides are traveling, backing, or equally in the blade's position as shown in this figure. This is because the design of the blade is designed to be symmetrical in the width direction.

FIG. 44 is an enlarged view of FIG . 43 to show in detail that two drive shafts are synchronized to drive a generator. Reference numerals 244 and 246 denote horizontal axis bevel gears, and 245 denote permanent generator rotors. As shown in the figure, you can see that the two spline linkers are synchronously rotated.

FIG. 45 shows the current generation system viewed from the right side, and it can be seen that the current flows from the left to the right when viewed in the direction of the guide door. 46 is an oblique view of the present invention algae power plant.

Fig. 47 2 is a view of the system from above and the two round discs 247 are intended to facilitate maintenance by lifting the disc and lifting the drive shaft as a whole during maintenance / maintenance of the two drive shafts. 248 is a state in which the door is opened to the maximum flow freely when the algae is discharged. On the other hand, the two guide doors at the entrance side of the bird are halfway closed toward the driving shaft and thus are not visible in the drawing. Therefore, the door is not visible in the part of (249).

Figure 48 Is a block diagram of the two two-axis bidirectional tidal current generator units. This feature is one of the most attractive advantages of the present invention, which allows the system to be integrated into a large-scale power generation complex at a low cost, and because of its blockage, the structural rigidity is higher than when operating as a single unit, which helps stabilize the system. .

Finally, FIG. 49 is a view when the three units of FIG. 48 are blocked from above, and the bird flows from 6 o'clock to 12 o'clock. The guide door on the entrance side is half closed inside the system and the door on the outlet side is fully open.

Unlike the wind / solar power, the 2-axis driven bi-directional algae power plant of the present invention is predictable and stable because the generation time is constant regardless of the year-round weather except for a short time when the tidal flow changes direction. Most efficient. Therefore, it is one of the most suitable models for investment in green renewable energy, which is blowing around the world due to high oil prices, and since the product has been developed by the new technology in the present invention, it is very advantageous in terms of cost since the development cost can be drastically reduced since the model can be produced immediately. In addition, there are many potential installation sites due to the nature of Korea, which has three sides, which can increase the ratio of clean ocean energy to the total power generation and result in the most efficient response to carbon emission reduction policies.

Claims (7)

The two vertical drive shafts are placed horizontally in the direction of seawater flow so that the two drive shafts are synchronized with each other with the seawater interposed between them to rotate.The two drive shafts use two bevel gear housings to transmit rotational force at right angles to the platform. A device for generating electricity by turning a single generator located in the upper center (see FIG. 44 ). Running of the cam followers road surface is 72 degrees for five turbine blades in a blade Control Housing with two types of follower equipped with a curved surface of a cylindrical cam and a spherical roller, as in the second (Fig. 3, see Fig. 4) And the control housings are superimposed in multi-level (see Fig. 40 ), and the blades are arranged in the same azimuth angle when the blades are positioned in the axial direction. Is a gear that engages each other like gears so that seawater flows between them. As shown in Figs . 25 and 26 , the flow control guide door is disposed wider than the length width of the left and right blade ends of both drive shafts at the entrance of the seawater to increase the flow rate and flow rate of the incoming seawater and pass the two drive shafts. The driving force is increased and the resistance is reduced, and the device is extended to fit the position of the seawater entering the azimuth angle of the roller driving guide surface of the cam to accommodate the inflow of the seawater under these conditions, and the Flow Control Stabilzer is installed at the bottom of the two drive shafts. A device that blocks vortices from surrounding underwater structures without affecting the rotating blades. As shown in Fig. 5 , the blade is connected to the follower in the form of a flange, and as shown in (126), it is symmetrical when viewed in the width direction of the blade, and as shown in (127) when the cross section of the blade is viewed. Raise the stiffness when the blade is mounted on the drive shaft to reduce vibration and resonance during operation, and the cam housing and the cover of the housing overlap in the axial direction as shown in FIGS. 6 , 7, 8, and 9 In order to fasten through (144) using eight bolts, and to install the bearing in the middle (140, 148) to fix the control axle in one cam housing, and to fix it with the bearing locker (232) and FIG. The cover of the housing is made like the (138) so as to receive the lower portion of the other cam housing deeply so that the other cam housing does not bend under water pressure, The shaft of the cam follower is fixed by inserting two bearings and a device for positioning the bearing, a device for fastening the concave and convex parts in the cam housing and the cam housing cover so as to transmit a certain driving force as shown in FIG. Device to make pockets such as 143 on the cam housing. In order to protect the system from the infiltration of seawater, it is necessary to make an O-ring groove such as (128, 129, 136, 142, 145, 146, 147, 162, 241) to perform a waterproof function and to lubricate it for waterproof and lubrication function as shown in Fig. 18 . Filling the internal empty space of the drive shaft and mounting the oil monitor (177), and as shown in Figure 32 to make the lower part of the first cam housing in a sealed state to eliminate the leakage and to supply lubricant to the center of the control axle and how to connect to make a return passage (237) (178) and also, as in 32 fabricated as a cam fixing pin (238, 239, 240) in Figure 31 and the device does not interfere with the lubricating oil passage of the central passage of the Control Axle As shown in Figs. 229 and 233, which are parts that hold the drive shaft at the bottom, the device and the two bearings 239 are fitted in the grooves 228 of the control axle and the bearings 232 in the cam housing. Axis Determining device. As shown in Fig. 10 , a tower is formed, and a bearing holder (154, 156) is formed to receive a drive shaft and a control axle in the middle thereof, and the tower is formed with four bolted holes and a cone at the bottom thereof (155, 157, 158). And a device for making eight bolt tabs at the connection part so that the Bevel Gear housing of FIG. 11 is fastened to the top, and a cooling fin 159 around the housing of FIG. 163) a device for arranging the bearing holder in the center, and a device having the lower part having an inclination angle and an upper part having a cylindrical shape as shown in the lower left cutaway view of FIG . 11 and a vertical axis bevel gear having a spline of FIG. and 15 of the Dual Spline Linker with Flexible Coupling and the vertical axis Bevel Gear as shown in Figure 17 two Thrust Bearing (183) the top of the bare in the arrangement and the vertical axis using the Bevel Gear Is pressing in the housing cover and to prevent separation of two Spline (180, 181) to bite Control Axle will be fixed Drive Axle apparatus is engaged with the vertical axis Spline Bevel Gear. As shown in Fig. 20, a fan and a center for providing cooling by installing fans on both sides of the rotor shaft of the generator are convex, such as a device for opening the frame and a permanent magnet such as 195, and the permanent magnet is concave. A device for solving the problem of permanent magnet dropping due to the centrifugal force by making a groove, two frame (198, 201) devices, a method of constructing a hinge with two thrust bearings as shown in FIG. 23 , and a lower structure as shown in FIG. Is made of 4 main pillars, 17 pipes and 2 drive shaft bases, a method of arranging guide doors on 4 main pillars, and (225) a device to control the door and a composite algae unit How to construct a power generation complex.

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