A name that represents the invention.

THE ELECTRICAL GENERATOR FROM WAVE ENERGY ACCUMULATOR USING CENTRIFUGAL METHOD

Science-related fields of invention

Mechanical engineering, electricity, renewable energy, and processes related to wave power stations.

Background of related arts or sciences

At present, Thailand attaches importance to procurement of renewable energy to strengthen national energy security to cope with fuel and natural gas shortage problems that will occur in the future. This has resulted in many projects including solar power generation, waste power generation, biomass power generation and wind power generation. All this aims to maintain energy stability. In addition, Thailand also has a large energy source with high energy potential that most people overlook, that is, the energy from waves in the sea, which has a large amount of energy, but has not yet has utilized as it should.

From research, found that in many countries there are projects to generate electricity from the natural power of the sea, for example, France uses the energy from the tidal phenomenon to turn underwater turbine blades to generate electricity which structured like a large dam blocking the bay. Finland Generate electricity from waves by using a structural system of large cylindrical buoys interconnected. Generating electricity by using the force of waves to create a tilt angle for hydraulic pistons to push oil to drive the turbine for the generator. And in some countries, using waves that hit the coast to compress air through a systematically connected windpipe to drive a generator.

From searching the research article the power-capture of a nearshore, modular, flaptype wave energy converter in regular in the journal Ocean Engineering 137 (Wilkinson et al., 2017, pp. 394-403) in the field of study, the energy from pressure of sea water or potential energy of sea waves by using wave barriers that can move according to the force of sea waves in various degrees and calculate wave energy values related to sea wave height and mass of the wave baffle being pushed into motion, which the study does not include power generation or prototyping. It is a study of principles and theoretical probabilities only. A research article titled Design, Optimization and Numerical Modeling of a Novel Floating Pendulum Wave Energy Converter with Tide Adaptation was published in the Journal of Ocean Engineering 31 (Yang et al., 2017, pp. 578-588). In different shapes and degrees of strength to find the most suitable value in the design by using the Flow 3D program. Such studies have not led to the production of electricity or created any prototypes but are studying the principles and theoretical probability. From searching for a research article on Development of a numerical model of the CECO wave energy converter using computational fluid dynamics in the journal Ocean Engineering 219 (William et al., 2021, pp. 108-116) about wave energy studies using buoys and gear system to convert wave energy into mechanical energy used to rotate the generator where the direction of movement of the gear is parallel to the slope of the sea waves or waves created specifically for testing by adjusting the variables according to the frequency of the waves and the height of the wave in order to get the maximum rotation of the gear system. A search for a research article on large capacity multi -float configurations for the wave energy converter M4 using a time domain linear diffraction model in the journal Applied Ocean Research 68 (Peter et al., 2017, pp. 53-64) is a study and research of the different buoy sizes Including placing the different order of the 3 buoys in the same plane to find the angle that can receive the most transfer of force from the sea waves and calculate the amount of energy expected to receive from the sea waves. From searching for a research article titled Reactive control of wave energy devices-the modeling paradox in the journal Applied Ocean Research 109 (Christian et al., 2021, pp. 102-124) regarding a comparative study of the ability to produce electricity, from a cylindrical buoy with a flat bottom and a cylindrical buoy with a curved belly the results of the study showed that curved bottom buoys can make power generation systems perform better on the same adjustment basis. A research article titled Overview of wave energy converter devices and the development of a new multi -axis laboratory prototype was published in the journal IFAC Papers-Online 50-1 (Aggidis & Taylor, 2017, pp. 15,651-15, 656). Research on the production of electricity from ocean waves, using the model of buoyancy in the sea and converts energy from waves using hydraulic systems to store pressure. This research was done in a closed system using a wave pool. The prototype from the research study can produce 3 kW of electricity. From a research article on Flexible multibody dynamics modeling of point-absorber wave energy 5 converters in the journal Renewable Energy 127 (Lin et al., 2018, pp. 790-801). that is used by attaching to the boat in the form of 6 arms attached to the buoy, with a total capacity of approximately Thailand's climate in a hot climate the southwest monsoon wind blows from the Indian Ocean into Thailand from the southwest to the northwest during the month of May until October for a period of approximately 6 months. As for the northeast monsoon wind, this type of wind blows from northeast Siberia, to the southwest during November-April for about 6 months, enabling marine waves that can be used to generate electricity. Thailand's geography where the South lies on both sides of the peninsula It has a protruding part into the sea and has a marine area of not less than 350,000 square kilometers. Including many of Thailand's sea islands with problems of insufficient electric power, lack of energy security, while there is a problem of severe coastal erosion caused by strong wind waves than other areas. Therefore, it is considered an area that needs to be solved urgently. In addition, it is suitable for a prototype project of power generation stations from wave energy along with solving coastal wave erosion problems at the same time. However, in Thailand, there is still no agency to seriously study, design, and test to be able to use it commercially, partly due to looking at examples of foreign countries that have a large wave. Which, when compared to in Thailand where waves are smaller, cannot be used as a model, therefore, Energis 42 Co., Ltd. sees the importance and need to research and develop electric generators from wave energy to suit the area with the current environmental factors in Thailand.

Nature and purpose of the invention

The purpose of this invention is the electrical generator from wave energy accumulator using centrifugal method used to convert sea wave energy into electrical energy (The definition of sea waves here is water waves with uncontrollable or uncontrolled wave conditions) to create a prototype of a sea wave generator) to be able to use with sea waves with a height in the range of 0.4 to 1.5 meters, with the appearance of a floating buoy containing a power generation system within and connected to a structure that rises above the sea which designed to match the characteristics of a variety of sea conditions and also can adjust different distances of the buoy, the height of the buoy pivot point by maintaining the balance of the rocking force or the movement of the buoy which is a centrifugal centrifuge rotating around the pivot point according to the balance of gravity (Balance Weight System) and the force and revolution generated by the centrifugal rotation will be accumulated with torsion springs system that was designed and positioned to be able to stand still while accumulating rounds and can rotate when accumulating rounds as specified by the system. It works by accumulating energy from the rotation of the centrifuge and then transferred to drive the electric generator to produce electricity from the energy of the sea waves of Thailand, which can working with low sea waves condition and the period of accumulation of rotation cycles will be in accordance with the limitation of the wave height which the control system can control the overall working process and display the performance of the sea wave generator very efficiently.

Brief description of the drawing

Figure 1. View of the electrical generator from wave energy accumulator using centrifugal method.

Figure 2. View of the three sets of buoy system.

Figure 3. View of the connection between the central control system and the three set of buoy system.

Figure 4. View of the waves energy accumulator buoy system.

Figure 5. View of the rotation cycle accumulator and power generation system.

Full disclosure of the invention

According to Figure 1, it shows the view of the electrical generator from wave energy accumulator using centrifugal method consists of central control system set (1) a structure made of welded stainless steel pipe with a diameter of 50 millimeters into a rectangular shape with two semicircular arcs on the wide side And has a width of 1.625 meters, a length of 5 meters, a height of 0.45 meters, functions as a control unit for the overall operation of the electrical generator from wave energy accumulator using centrifugal method and transmits the generated energy to the designated power station. It is connect with two sets or more of the three set of buoy system (2) as a connection between the waves energy accumulator buoy system (3) which converts wave energy into electricity and the central control system set (1).

According to Figure 2, it shows the view of the three set of buoy system (2) consists of three waves energy accumulator buoy system (3) function to change the energy of the movement of water waves into electricity, which assembling on the holder structure for buoy system (4) functions to hold the waves energy accumulator buoy system (3), which the structure is made of welding and assembling pipes with a diameter of 50 millimeters, stainless steel material, in a rectangular shape. It has curved sides of 1 quarter of a circle on 2 sides, in width and width of 2.25 meters, length of 7.25 meters and height of 0.45 meters and have the junction leveling set for buoy (5) which is a set of adjustable bearings, mounted on both long sides of the holder structure for buoy system (4) amount to 3 sets on each side, which each set installed at a distance of 2.2 meters from each other, serving as a connection part that can adjust the sink-float level of the waves energy accumulator buoy system (3). The connection to the central control system (1) is via the connecting shaft for central control system and holder structure for buoy system (6), which is made of stainless-steel material in shape of a hollow shaft. The outer diameter is 15 centimeters, the shaft wall is 5 millimeters thick, assembled on the holder structure for buoy system (4) in the middle of the width, four holes are drilled around the shaft axis, sized 13 mm., each spaced 90 degrees apart, positioned 25 mm. from shaft end.

According to Figure 3, it shows the view of the connection between the central control system (1) and the three set of buoy system (2) consists of the connecting shaft for central control system and holder structure for buoy system (6) fitted with a central control system

(1), with two set of shaft support bearing (7) fixed around the axis Installed at a distance of 0.35 meters along the axis distance to support the movement of the three set of buoy system

(2) according to the force of the water wave by installing together with the set of waterproof seals (8) function to prevent water from entering the central control unit (1), which the connecting shaft for central control system and holder structure for buoy system (6) will be fixed so that it cannot move in the axial direction by using the shaft retaining ring (9) made of stainless-steel material, in the ring shape, Inner diameter 150 mm., outer diameter 200 mm., thickness 25 mm. There are 4 holes around the ring, size 13 mm., spaced 90 degrees each, around the shaft line for fixing screws together with connecting shaft for central control system and holder structure for buoy system (6).

According to Figure 4, it shows the view of the waves energy accumulator buoy system (3) consists of the wave energy accumulator cover (10) made from PVC plastic material, 8 mm. thick, formed into a curved cylindrical shape with cylindrical diameter of 2.2 meters, height of 0.53 meters, the curved surface around the cylinder has a radius of 0.2 meters function as part of contact with water to create buoyancy and prevent water from entering the internal structure of waves energy accumulator buoy system (3) by attaching to the wave energy accumulator buoy structure (11) which is made of c-shaped stainless-steel, 3/4 inches wide and 1-1/2 inches long, welded into three overlapping rings. It has a cylindrical diameter of 2.2 meters and a height of 0.53 meters. The outer ring is connected to the buoy suspension shaft (12) which is made of cylindrical stainless-steel material with diameter 30 mm., height 200 mm. functions as a connection point to the junction leveling set for buoy (5) by means of joining the center of the wave energy accumulator buoy structure (11) together with the centrifugal pendulum (13). The centrifugal pendulum (13) is made of PVC plastic material, 8 mm. thick, formed into a half-hollow cylindrical shape, with an outer radius of 0.85 meters, an inner radius of 0.5 meters, a height of 0.415 meters, inside can be packed with other materials to increase or decrease the weight at the desired position, which functions as a centrifugal pendulum rotating around the pendulum mounting shaft (14) which made of stainless -steel material in the shape of a cylinder with diameter 30 millimeters, height 0.415 meters by pivoting according to the oscillating motion of the waves energy accumulator buoy system (3) around the axis of the buoy suspension shaft (12) with one end of the shaft holding the centrifugal pendulum (13) installing with a coupling (15) for connecting the axis to transmit power from the rotation of the centrifugal pendulum (13) to the rotation cycle accumulator and power generation system (16) which functions as a system that converts the energy from the rotation of the centrifugal pendulum (13) into electricity.

According to Figure 5, it shows the view of the rotation cycle accumulator and power generation system (16) consists of the rotation cycle accumulator and power generation system’s cover (17) made of PVC plastic material, 8 mm. thick, formed into a right-angled triangle shape with a base size of 0.7 meters high. 0.155 meters wide, with the right-angle side being an arc with a radius of 0.235 meters and 0.435 meters, 2 pieces assembled on the base side together function to prevent water from outside from entering the rotation cycle accumulator and power generation system (16) which is attached to the holder structure for rotation cycle accumulator and power generation system (18) made of stainless-steel shaft and rectangular-shaped assembly plate. The external dimensions are 0.167 meters wide, 0.7 meters long and 0.435 meters function to be installed with various equipment as follows, the transmission shaft (19) made from cylindrical stainless steel material, diameter 30 mm. height 165 mm. functions as a rotating shaft driven by the rotation of the centrifugal pendulum (13) through the connection from the pendulum mounting shaft (14) which is connected using a coupling (15) in conjunction with the bearing set-1 (20) which mounted inside the housing of the holder structure for rotation cycle accumulator and power generation system (18), which on the shaft axis, install 2 sets of drive gears, i.e. drive gear-1 (21) made of plastic material. Polyoxymethylene, POM has the shape of a gear wheel, spur gear, diameter 190 mm., height 20 mm., has 62 gear teeth, module 3, the center mounted the one-way swivel bearing-1 (22) function as a connection between drive gear-1 (21) with the transmission shaft (19) so that the drive gear-1 (21) which receive the power from the transmission shaft (19) can only be rotated in a clockwise direction. The drive gear-2 (23) is made of plastic material, Polyoxymethylene, POM has the shape of a gear wheel, spur gear, diameter 190 mm., height 20 mm., has 62 gear teeth, module 3, the center mounted the one-way swivel bearing-2 (24) which receive the power from the transmission shaft (19) can only be rotated in a counterclockwise direction. The rotation of the clockwise direction of the drive gear-1 (21) will be used to drive the direction changer gear set (25) which is a set of gears made of plastic material , polyoxymethylene, POM is shaped like a spur gear wheel with a diameter of 60 millimeters, a height of 20 millimeters, with 18 teeth, module 3, 2 gears installed together on a single spindle to transmit the rotational power of drive gear-1 (21) to the drive axis of spring set (26) which is a cylindrical shaft, made of stainless steel, diameter 30 mm., height 400 mm., installed on the gear system on drive axis of spring set (27) which is a gear set made of plastic material polyoxymethylene, POM has the shape of a gear wheel, spur gear, diameter 60 mm., height 20 mm., has 18 teeth, module 3, 2 gears from the direction changer gear set (25) that is driven by drive gear-1 (21) and receive rotation power from drive gear-2 (23) to transmit power and revolutions to the set of cycle accumulator spring (28). Inside of the set of cycle accumulator spring (28) contains the one-way swivel bearing-3 (29) functions to hold the drive axis of spring set (26) with 2 sets of torsion springs (30), made of metal material with high spring strength, which one end of the spring attaches to the drive axis of spring set (26), the other end of the spring is fixed to the spring mounting frame (31) made from stainless steel sheet material and stainless shaft assembled It is a 2-layer cylindrical tube with a diameter of 280 mm. and a height of 180 mm. to hold the end of the torsion spring (30) on one side. At the side of the spring mounting frame (31) is equipped with an anti -rotation gear set (32) which functions to prevent rotation of the spring mounting frame (31) before the torsion spring (30) accumulates to the maximum revolution of the spring. When the torsion spring (30) accumulates a complete rotation, the anti-rotation gear set (32) will move away from the spring mounting frame (31) to allow it to rotate freely according to the force accumulated within. The torsion spring (30) which rotates will drive the spocket-1 (33) which made of stainless steel, center 280 mm., height 5 mm., has 90 teeth, size 0.25 inches, mounted on one side of the spring mounting frame (31) opposite the anti -rotation gear set (32). The rotation power of the spocket-1 (33) will be transmitted to the spocket-2 (34) made of stainless steel, center 60 mm., height 5. Millimeters with 30 teeth, size 0.25 inches with chain (35) made of stainless material, size 0.25 inches, which the central axis of the spocket-2 (34) is connected to the generator (36) size not less than 500 watts by the electricity produced from such work is sent to the control system and transmits power from the buoy which is installed inside a central control systems (1) for collecting and delivering electricity to the designated stations.

The best invention method

The best invention methods are those described in the description of full invention disclosure.