JP2012012974A - Wind power energy recovery floating ship - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce a heavy load inside a nacelle, lower the center of gravity to below the water surface, lower a generator to near the water surface for making a floating ship with high resilience, convert rotational energy from wind power into compressed air and accumulate it as high pressure gas in a hollow part inside a tower, prevent a windmill facility from resisting a wind even during a strong wind, and make a windmill propeller spontaneously face windward so that the wind can be received with good efficiency even during a light wind.SOLUTION: The rotational energy from wind power obtained in one windmill facility is converted into pressure energy by an air compressor and a hydraulic pump. The obtained compressed air is stored inside the tower with pressure and is collected in one location to generate power. Further, so that the windmill propeller always faces windward, the vicinity of a draft line of a bow of the wind power energy recovery floating ship is made sharp, wave-making resistance is reduced by making a portion of the ship below the draft line in a stream line, and a longitudinal cross sectional area of a keel of the ship's bottom is made large in order to obtain a windmill facility with high resilience.

Description

The present invention relates to an offshore wind energy recovery floating ship that has a structure in which a wind energy recovery floating ship is naturally oriented to the windward and stores wind energy converted into compressed air in a tower of the floating ship.

Transmission cables and submarine cables are generally used to carry the power obtained by wind power generation offshore to the consumption area. However, due to the high cost of power transmission cables and large power transmission loss, a method of converting wind energy into energy other than electric power and storing it and transporting it to a consumer area is being studied. Nozawa, a company designed and analyzed by NTT H. Co., Ltd., uses an energy production system to electrolyze seawater with the power generated by wind power generators, solar panels or wave power generators on megafloats to produce oxygen and hydrogen gas. Patent Document 1 discloses a method of liquefying and storing in a storage container. Taniguchi discloses in Patent Document 2 that hydrogen is extracted from seawater by electrolysis of seawater using electric power obtained from a vertical axis windmill installed on a ship and used as fuel for a fuel cell. On the other hand, after producing metallic sodium from seawater just below with the power obtained from offshore wind power generation, water is added at the consumption area to generate hydrogen, which is used as fuel for power generation, and by-product caustic soda is a raw material for soda industry. For the method of constructing an energy cycle of metallic sodium by further electrolyzing caustic soda with molten salt, the inventors of the present application disclosed in “Marine Resources Energy Extraction / Production Ocean Factory” and Patent Literature 4 “Marine Electrolysis”. "Factory", Non-Patent Document 1, "Saving corn from ethanolization".

Propeller type wind power generators tend to be larger in order to increase the amount of wind received. Along with that, the tower becomes taller, and in the nacelle at the top, the head becomes heavy to store the generator, high speed rotating gear, direction changing gear, etc., the tower can not bear the weight and damage Accidents have been reported on land. In the case of land and shallow water where the tower is fixed to the ground, it is sufficient to fix it firmly, but in the offshore where the sea floor is deep, offshore or lake, these large windmills will be built on the floating body. To do so, the heavy objects inside the nacelle must be lowered near the water surface, and the center of gravity must be lowered near the water surface. Therefore, it is necessary to consider removing the most heavy generators, high-speed rotating gears, and direction changing gears for moving the wind turbine propellers upwind. Therefore, instead of directly generating the propeller rotation with the generator in the nacelle, if this wind energy is converted into compressed air, storage becomes easier, and constant energy can be extracted as needed. . In general, when gas is compressed, its volume is reduced, and when it is further reduced, it becomes liquid or solid. For this reason, a large space is not required for storing wind power. Kato et al. Of Kyocera Corporation discloses a method of making compressed air by using a compressor linked to a windmill in an “air energy device” and storing the compressed air in an air tank. A similar technique is disclosed in Patent Document 6 by Funai “Pushed air generation and storage device and power generation system using the compressed air generation and storage device”. Hayashi discloses a concept in Patent Document 7 in which, in the “pressure accumulating structure”, a piston whose cylinder is an air chamber is pushed down by rotation of a windmill to compress air in the air chamber and send it to an air storage tank. Sato uses an air compressor connected to the rotating shafts of horizontal wind turbines supported by a plurality of wind turbines by pipes to store the compressed air in an air tank, and rotates the air motor with the compressed air to generate a power generator. This is disclosed in Patent Document 8. Miyazaki is a “wind power generator” that uses a gear to rotate the windmill at high speed, one is connected to a generator, the other is connected to a pneumatic piston, stores compressed air when power generation is excessive, and drives an air motor when power is insufficient. Patent Document 9 discloses a method of generating electricity. In addition, a report that uses compressed air to pressurize the water and rotate the turbine to generate electricity is generated by Yoshimura of Mazumi Co., Ltd. at the `` pumped storage power plant '', when dropping the pumped water from the upper reservoir to the lower reservoir. Patent Document 10 discloses a method capable of obtaining a predetermined power generation output even if the effective head is short by performing additional pressure with compressed air. Regarding the method of generating and storing compressed air by rotating the windmill, sending it to a tank tank filled with water, and rotating the turbine with that water pressure to generate electricity, Shinozaki said, “We do not drop water from high places, but use low water. Patent Document 11 discloses “a power generation apparatus using a combination of wind power, air pressure, and water pressure”.

In order to obtain wind power efficiently with a propeller, it is necessary to point the propeller upwind. As the simplest method, a method of attaching a vertical tail like a weathercock to the nacelle has been reported. In the “Wind Power Generator” of Patent Document 12, National Institute of Technology National Institute of Technology, for example, has a structure in which a vertical tail and a horizontal tail are provided at the rear portion of the nacelle, and the propeller is spontaneously directed upwind. On the other hand, the tip of the wind turbine generator has a pointed shape so that it faces the windward side, with a propeller on the leeward side, and a vertical tail on both rotating shafts, and a method for spontaneously capturing wind from the windward efficiently. Nobara discloses the “wind power generator” of Patent Document 13. Nishida et al. Of Report Service Co., Ltd. in Hokkaido, have two propeller-equipped generators fixed with arms in the “Twin-rotor wind power generator” of Patent Document 14, and perpendicular to the symmetry plane of the two wind turbines behind the arms. It is disclosed that a tail wing is provided and the windmill is devised so as to face the windward. Miyakawa et al. Of Shimizu Construction Co., Ltd. measured in a wind direction detector provided on the floating body in a floating body structure and a method for controlling the position of the floating body in Patent Document 15 where a wind power generation facility was placed at the center of the floating body of an offshore wind turbine. A mechanism for operating a rudder attached to a plurality of floating bodies so as to face the windward is disclosed. Regarding the mechanism that voluntarily directs the propeller-type windmill to the windward, Ichiyoshi in the “offshore wind power generation system”, in order to secure the attitude to the wind direction of the hull in strong winds, the power ship is a catamaran type and rolling with waves As a spoiler, the hydrofoil as a spoiler is kept vertical to prevent the power ship from being blown by strong winds, and the attitude of the hull is controlled by controlling the angle of four vertical wings installed before and after the power ship. This method is disclosed in Patent Document 16.

Wind is stronger than on land at sea, lakes or rivers, and wind speed is higher offshore, and there are no obstacles. In addition, the installation of large windmills on land is a bottleneck, but it is easy because the port can be used on the ocean, on the lake, or on the river, and it has less impact on the surrounding environment such as noise and radio interference than on land. However, considering the installation, there is a considerable gap between Japan and overseas. For example, overseas offshore wind turbines have many shallow waters, and most of them are fixed to the seabed or platform, but in Japan, it is necessary to consider a floating type because the water is deep. However, the need for floating wind turbines will increase if each country develops within or outside of the exclusive economic zone. Regarding the support structure of these wind turbines, the difference between the fixed support structure and the floating support structure is described in Non-Patent Document 1 of the present inventor, “Saving Corn from Ethanolation”. Yago et al. Of the National Maritime Research Institute have made it possible to move up and down the tower that supports the wind turbine for power generation in the “offshore wind power generation facility”, and by pouring water into the buoyancy tank at the lower end of the tower during strong winds, Japanese Patent Application Laid-Open No. H11-228561 discloses a method for making it easy to evacuate and save. Murakami of Hitachi Zosen Co., Ltd. placed the central axis of the cylindrical main floating body upright to support the wind turbine in the “floating foundation structure for offshore wind power generation” vertically, and integrated with a truss to surround this main floating body The lower part of the main floating body is submerged in the sea, the upper part of the secondary floating body is located on the sea, and has a diameter larger than the main floating body below the waterline of the main floating body. Patent Documents 17, 18, and 19 disclose a method for avoiding the influence of wave external force, wind external force, and the like by installing a flat plate so as to be horizontal, without being affected by water depth and not related to ocean topography. In the “offshore wind power generator”, a wind power generator is installed at each apex position of a planar equilateral triangular structure, and a floating body is placed on the water surface at the center of the frame structure connecting three wind power generators. A method of attaching is disclosed in Patent Document 20.

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Masataka Murahara / Kanwa City “Wind, save corn from ethanolization” published by Power Company (December 2007)

Japan's coastline is as long as 33,900 km, and it is one of the world's leading maritime nations. Furthermore, according to the United Nations Convention on the Law of the Sea, which came into effect in 1994, coastal countries can use continental shelves up to 200 nautical miles (370 km) of the seabed and below the seabed, as long as the topography and geology of the seabed meet certain conditions. Can set a continental shelf, outside of 200 nautical miles. These hydrothermal deposits in and out of 2,000 meters deep are mud sulfides containing gold, silver, copper, zinc, lead, etc., and are polymetallic sulfide deposits formed by hydrothermal action on the sea floor. It is highly probable that it exists in Izu, Ogasawara, Okinawa, and other areas in the Pacific Ocean, and is promising as a next-generation mineral resource. In addition, metals such as manganese crusts distributed in relatively shallow waters within the exclusive economic zone and manganese nodules distributed inside and outside 5,000 meters are buried in metal that cannot be compared with the amount dissolved in seawater. Floating structures are considered optimal for shortening the construction period of wind energy recovery equipment on these vast and deep oceans. Furthermore, it is necessary to develop and improve wind turbines that can simplify construction work and avoid typhoons and strong winds. In view of this, the present invention proposes a “wind-wind type rising offshore propeller-type windmill for manufacturing a compressed air method”.
In recent years, propeller-type wind power generators tend to be larger in order to increase the amount of received wind. Along with that, the tower becomes taller, and in the nacelle at the top, the head becomes heavier to store the generator, high-speed rotating gear, direction changing gear, etc., and the tower breaks without being able to bear the weight An accident has been reported on land. In the case of land and shallow water where the tower is fixed to the ground, it is sufficient to fix it firmly, but on the offshore or offshore or on the lake where the seabed is deep, these large windmills will be built on the floating body. To do so, the heavy objects inside the nacelle must be lowered near the water surface, and the center of gravity must be lowered near the water surface. To that end, it is considered to remove from the nacelle the most heavy generators, high-speed rotating gears, and direction changing gears for moving the wind turbine propellers to the windward. Therefore, instead of directly generating the propeller rotation with the generator in the nacelle, if the cavity inside the tower is used as a storage that converts this wind energy to compressed air and stores it in the form of high-pressure gas, A large volume of compressed air can be stored, and constant energy can be extracted as needed without worrying about windless conditions. Furthermore, if the windmill facility is built on a floating ship, the shape of the draft line of the floating ship will be devised, the windmill will be directed naturally to the windward, and the entire windmill facility will acquire strong wind energy toward the strong wind without resisting the wind It becomes possible to do. The entire windmill facility is light, the interior is hollow, and the spherical or elliptical water tank below the surface of the water raises the entire windmill facility as a weight by injecting seawater or water, and at the time of towing, repair, construction, maintenance inspection In the case where seawater or water is drawn down and laid on the surface of the water to avoid strong winds such as typhoons, the present invention has a structure in which water is also injected into the tower and high-pressure cylinder so as to be submerged vertically to a desired depth. Is a problem to be solved.

Japan's coastline is as long as 84.7% of the earth. Moreover, the sea floor is deep. Furthermore, offshore wind power generation is indispensable for power development for submarine resources in the exclusive economic zone, and the structure of the wind power generation facility is preferably floating. Furthermore, the windmill always faces upwind, does not resist strong winds, the center of gravity of the windmill facility during operation is located below the surface of the water, easy to install and repair, easy emergency evacuation during typhoons, and at the facility A structure that requires only a short period of work is required. In general, large cranes are usually dispatched to the site waters for the construction and repair of windmill facilities. However, if the generator, speed increasing gear, or wind direction adjusting gear in the nacelle where failure is likely to occur is removed and only the compressed air pump or hydraulic pump is used in the nacelle, the probability of failure is drastically reduced. Furthermore, if water as a weight in the tank in the cylindrical support body under the surface of the wind turbine equipment pedestal is drained and placed on the surface of the water, the work is easy at the time of towing, repair, construction and maintenance inspection. In addition, when strong winds such as typhoons are avoided, water can be poured into the tower / high pressure cylinder and submerged vertically at a desired depth.
The usual way for a windmill to dodge side winds and gusts is to direct the propeller of the windmill upwind. Generally, as disclosed in Patent Document 16, after detection by a wind direction detector, the rudder of a floating ship is operated to indirectly face the windward. However, you cannot expect agile behavior. When a ship is anchored offshore, it is not anchored at the stern, but anchored only at the bow, it will naturally anchor at the position where the bow is facing upwind. This is because the ship moves the bow to the windward by the resistance of water. According to this principle, the ship receives air resistance and water resistance near the water surface, but since the fluid resistance of water is 800 times that of air, the fluid resistance received from water is large. The fluid resistance component is frictional resistance, wave resistance, and viscous pressure resistance. Friction resistance occurs when the hull surface and water are rubbed. Wave resistance causes waves on the water surface due to frictional resistance at the interface between the water flow and the ship. The viscous pressure resistance causes the fluid around the moving object to move away from the object surface (flow separation), resulting in a vortex behind the object. As a result, the pressure acting on the surface behind the object is reduced, and a difference from the pressure acting on the front is generated. Therefore, in order to minimize fluid separation in the floating ship and reduce the viscous pressure resistance, the shape of the part below the waterline of the ship is made streamlined. In order to suppress the wave resistance as much as possible, the bow part that cuts the water is sharpened. For this reason, the water surface is streamlined, and the portion very close to the water line near the water surface is shaped to have a sharp tip. Sasaki of Sumitomo Heavy Industries Marine Engineering Co., Ltd. discloses that in the “ship” of Patent Document 21, a wave-shaped resistance is suppressed by providing a sharp protrusion toward the front of the ship. Yamazaki et al. Of Mitsui Engineering & Shipbuilding Co., Ltd. discloses a calculation formula for reducing wave resistance by calculating the shape of the bow of a large ship with a square factor of 0.88 to 0.96 in the first half of the bow in Patent Document 22 “Ship”. Yes.
In addition, as a method of physically reducing wave resistance, the bow portion below the waterline is made into a spherical bow (Barbus Bau). This method is used in the battleship Yamato launched on August 8, 1940 and the battleship Musashi launched on November 1, 1940, and is used in today's tankers and large ships. The wave-making resistance attenuation principle by this spherical bow is based on the fact that the wave peaks and valleys generated at the spherical bow under the waterline interfere with each other and the wave valleys and peaks generated at the sharp bow near the waterline interfere with each other. Wave resistance is reduced because they cancel each other. Kataoka of Kurushima Dock Co., Ltd. discloses an automobile carrier ship having a spherical bow under the waterline in “Automatic Carrier Ship Bow Structure” of Patent Document 23. Imoto of Imoto Shoko Co., Ltd. discloses that in the “container ship” of Patent Document 24, a depression is provided above the spherical bow. Yamano et al. Of Kawasaki Heavy Industries Co., Ltd. reduced wave-making resistance and breakage resistance by drafting with a spherical bow so that there is no discontinuity in connection with the main hull in the “bow shape” of Patent Document 25 (Japanese Patent Laid-Open No. Hei 8-040346). The shape to be made is disclosed.
In the present invention, the compressed air is accumulated inside the windmill tower, but a part of the compressed air is generated at the bottom of the floating body, and the friction resistance is reduced by covering the bottom of the ship as micro bubbles inside and outside the diameter of 0.5 mm. Can do. It is particularly effective for mooring in areas where the ocean currents and tidal currents are fast. Takahashi of Ishikawajima-Harima Heavy Industries Co., Ltd. rubs the spherical bow that projects the spherical bow from the part in the “friction resistance reduction ship” of Patent Document 26 (Japanese Patent Laid-Open No. 2000-108983) and spouts the gas (microvalve) from that part. It discloses that the resistance is reduced, and a bubble generating device is disclosed in “Microvalve generating device” of Japanese Patent Application Laid-Open No. 10-119875. However, underwater like a submarine, the hull has no contact interface with air, so there is no need to consider wave resistance.
However, when the windmill tower is tall and the influence of wind cannot be ignored, the shape of the windmill tower is streamlined so that it faces naturally upwind. In addition, as an auxiliary means, it is also effective to attach a relatively large sail (Mizun) or two sails (Spanker) to the stern, as seen on fishing boats.

In general, in a conventional wind power generation facility, the wind turbine propeller shaft is directly connected to the generator via a gear in the nacelle at the upper end of the wind turbine tower. There have been reports of accidents in which the generator's gravity balance is lost and the tower is damaged. Therefore, in a floating structure that does not have a foundation on the seabed, lake bottom, or ground, the center of gravity is lowered below the surface of the water to ensure stability. For this purpose, the generator on the nacelle is abolished, and instead, the rotation of the wind turbine is operated directly via a rotary air compressor or crankshaft, and the resulting compressed air is used as a compressed air storage cylinder inside the tower. To store. Alternatively, the high pressure oil that receives mechanical energy from the rotating shaft of the propeller by the hydraulic pump (gear pump or vane pump) in the nacelle and is converted into pressure energy is supplied to the hydraulic control valve (pressure control valve: Set work size, flow control valve: set work speed, directional control valve: set work direction), then divided into each work, then the lower part of the tower (near the water surface) via pipe or high pressure rubber hose It is pumped to a hydraulic actuator (hydraulic motor: converted into rotary motion, hydraulic cylinder: converted into linear motion) installed on the windmill base of the wind turbine, and converted into kinetic energy again to perform the desired work. After that, the oil that has finished its role is returned to the respective control valves and then collected in the oil tank. In general, the oil that has finished its work is hot, so it is cooled with seawater or lake water, replenished with a shortage, and sent again to the hydraulic motor in the nacelle as low-pressure oil. One of the basic drawbacks of windmills is that the starting torque is small. For this reason, starting from the outside is indispensable. Generally, the propeller shaft is started by a motor, but the power is large. In particular, in the present invention, the rotational kinetic energy of the propeller is converted into the pressure energy of the hydraulic pump. Therefore, if the ultrahigh pressure oil is sent instantaneously from the low pressure oil inlet of the hydraulic pump at the start, the hydraulic pump functions as a hydraulic motor. Start rotating. Once the rotation is started, the propeller starts rotating by wind power, and thereafter, the high pressure oil is pumped from the hydraulic pump to the hydraulic actuator. The ultra-high pressure oil used here only needs to connect the accumulator to the circulation path of the low-pressure oil sent from the oil tank to the hydraulic pump. The principle of the accumulator applies the property that the volume cannot be reduced even if the liquid is compressed, but the volume can be reduced if the gas is compressed. In the structure of the accumulator, an oil chamber and a gas chamber are separated from each other by a piston. First, the gas inlet / outlet valve of the gas chamber is opened, gas (nitrogen gas) is sealed, and then the valve is closed. Subsequently, when the valve of the oil chamber is opened and high-pressure oil is press-fitted, the pressure oil pushes up the piston, compresses the gas, and puts the oil into the oil chamber until the oil pressure and the gas pressure are in equilibrium. When the valve at the oil inlet / outlet is closed, the ultrahigh pressure oil is accumulated. Therefore, when the propeller of a wind turbine in a stationary state is to be started and the oil chamber valve is opened, the gas expands instantaneously and the high pressure oil flows instantaneously to the hydraulic pump in the nacelle. The accumulator work ends. In this way, the accumulator stores the ultra-high pressure oil and, when necessary, completes the first work with its instantaneous power. However, it is economical because it can be used many times if the input of gas and hydraulic pressure is repeated. As a report on the use of accumulators for wind power generators, Hanyu et al. Of Kashima Construction Co., Ltd., as a drive device for controlling the vibration of wind turbines for wind power generation in the “active vibration control structure” of Patent Document 28. It is disclosed to use. The use of an accumulator as a wind power propeller brake is disclosed by Hanning and Carl Gesellshaft Mit Beschlenkurte Huffung and Shio. Yes.

In a floating wind energy recovery system that does not have a foundation (fixed place) on the sea floor, lake bottom, or ground, in order to ensure the stability of the wind turbine device, the center line of the wind turbine device (central axis of the wind turbine tower) and the buoyancy action line If the intersection M (metacenter) with the center of gravity is higher than the center of gravity G, the restoring force will work even if the entire windmill is tilted. Therefore, the greater the GM (distance from the metacenter to the center of gravity), the stronger the restoring force. Therefore, it is important to make the metacenter high and away from the center of gravity. However, if the restoring force is too high, the wind turbine device will sway quickly, resulting in a problem of lack of stability. Therefore, a proposal to arrange equipment at the bottom of the tower in order to lower the altitude of the floating windmill metacenter was proposed by William E. Heronimus of Ocean Wind Energy Systems Inc. , Wind turbines, and wind energy conversion systems. In the present invention, in order to extremely lower the center of gravity of the windmill device and further increase the restoring force, the width of the floating ship is widened, and the keel of the yacht (the center board and the end of the center board) is placed on the bottom of the floating ship. A streamlined hollow pipe filled with water in the weight) and a weight of a sphere or rugby ball shape at the end of the center board as a weight, and with a rocking stopper and a tilt perpendicular to both sides of the center board Large area fins are provided for suppression. As for spoilers and flow control by strong winds, Patent Document 31 discloses that a hydrofoil is installed vertically as a spoiler, but this is because power generation is opposed to typhoons at sea rather than under the sea. Therefore, it is very different from what is installed to balance the weight of the tens of meters below the surface of water of the present application. In addition, the bow of the floating ship is fixed to the bottom of the sea or lake with an anchor rope so that the windmill facility will naturally face the windward.
The gist of the present invention is to replace the generator instead of the generator in the nacelle, thereby producing compressed air. Patent Documents 32, 33 and 34 disclose a method of creating compressed air with wind energy and storing it in an air tank. In addition, it is necessary to have a structure that facilitates installation and repair inspection work for wind turbine installation, facilitates emergency evacuation during a typhoon, and requires only a short period of facility work. For this reason, it is possible to sink the windmill tower below the surface of the water, and in the event of a strong wind such as a typhoon, seawater or lake water is poured into a compressed air storage cylinder in the tower to immerse it to the target depth. Patent Document 35 discloses a method for submerging a windmill tower, but the same method is used to inject water into the tower in order to sink it below the surface of the water. This is different from the system in which the wind turbine equipment is stably erected by providing a weight and an anti-sway flat plate at the lower end. Furthermore, at the time of construction or maintenance inspection or repair, the wind tank type water injection riser with a structure that can drain the water tank under the surface of the water and lay the entire wind turbine facility on the surface of the water or tilt it to work or tow from the port. This is an offshore propeller type windmill facility.

Even if the liquid is compressed, the volume cannot be reduced, but when the gas is compressed, the volume can be reduced. For this reason, if there is a pressure vessel, pressure can be accumulated and taken out when necessary. In particular, wind power generation cannot provide stable power because the wind speed is not constant. Therefore, compressed air produced by converting wind energy converted into rotational energy into pressure energy inside the nacelle at the height of the windmill facility is stored in a compressed air cylinder inside the tower, and the compressed air is stored near the water surface. If it is converted into rotational motion again and the generator is turned, the large generator can be driven without worrying about the weight. Many conversions reduce the conversion efficiency, but it is cheaper and only mechanical mechanisms than creating multiple windmill facilities with low power generation efficiency and high equipment costs to make the generator lighter It is more efficient to build a large number of wind-compressed air production and storage facilities, collect the compressed air in one place, and drive a large generator at a low center of gravity such as on the surface of the sea or lake. Considering the failure rate and maintenance cost, it is considered economically large. Furthermore, if oil pressure is used in the wind turbine facility, maintenance and equipment will be simplified. High pressure oil is made by a hydraulic pump (gear pump, vane pump) that is directly connected to the propeller shaft in the nacelle and converts rotational motion directly into pressure, and this is pumped to the bottom of the tower with a pipe, and a hydraulic actuator ( Drives the hydraulic motor: rotational movement, hydraulic cylinder: linear reciprocating movement).
Since a large rotational torque can be obtained with the hydraulic motor, the large generator can be driven by turning the speed increasing gear. On the other hand, since a large compression force can be obtained with a hydraulic cylinder, compressed air with a large capacity and a high compression rate can be produced. Further, adiabatic expansion can be induced to produce liquid air. From this, liquid nitrogen and liquid oxygen are produced.

According to the first aspect of the present invention, wind energy can be efficiently recovered even in strong winds and light winds, and even if the wind energy recovery floating ship is blown by strong winds, it rolls over without resisting the wind. Measures are taken to obtain a strong resilience that never happens. In general, yachts are not overturned even if they are hit by a strong wind because the keel attached to the bottom of the ship serves as a weight and the center of gravity is located below the surface of the water. Even a small yacht is comparable to a 10,000-ton class cargo ship. Has enough resilience to do. Therefore, in the present invention, the outer cavity cross section filled with water is provided with a streamline shape, a circular shape, or an elliptical keel as a support below the floating ship draft surface, and a weight is provided at the end thereof. In addition, the keel and the weight are collectively referred to as a keel. Here, the shape of the cross section of the outer wall of the keel may be circular, elliptical, streamlined cylindrical or conical, but the cone has a large cross-sectional area at the bottom of the floating body and a small cross-sectional area at the weight side at the end. The shape is desirable. In particular, the cavity inside the keel has a water tank structure, and by filling the cavity with an appropriate amount of water as required, the windmill energy recovery floating ship can be erected or laid down. In order to lay down the windmill energy recovery floating ship, when the water in the water tank is drained, it gradually begins to tilt sideways as the amount of drainage increases, and eventually falls to the side. Especially when the wind turbine body is towed from the port, at the time of construction, maintenance inspection or repair, the water is drained and brought down to the surface of the water. Such a structure that can be laid down or erected does not require a large crane, and the construction period can be shortened, and maintenance and inspection can be economically performed. Furthermore, during strong winds such as when a typhoon is approaching, water can be gradually submerged by injecting water into the compressed air storage in the windmill tower above the floating ship.
In addition, in order to lower the center of gravity, improve the stability of the wind energy recovery floating ship, and prevent the tipping over, the generator, speed increasing gear or wind direction adjusting gear, etc. which were the equipment in the conventional nacelle are removed, instead. In the case of an air compressor equipped with an air compressor and a hydraulic pump, and the conversion device from rotational energy to pressure energy linked to the rotating shaft of the wind turbine propeller, the compressed air obtained is stored in the compressed air storage inside the tower, In the case of a hydraulic pump, the high-pressure oil obtained is sent by pipe to the hydraulic control device provided at the bottom of the tower or on the floating ship deck, and the control valve is operated. The work speed and direction control valve determine the work direction, and the high-pressure oil branched by these control valves is pumped to the hydraulic actuator.
Regardless of whether the fluid is liquid or gas, it will be dragged. This drag is a frictional resistance or a pressure resistance. The frictional resistance is small for gas, but is about 800 times larger for liquids such as water. Pressure resistance is most strongly affected in air and liquid. As the fluid moves behind the structure, the flow separates and the force that advances the object is attenuated. For this reason, if the structure is made into a streamline shape and a smooth flow is created, the flow that moves backward acts to push back the streamline structure, and the frictional resistance is also reduced, so that the wind energy recovery efficiency is increased. Even if the wind is weak, it is necessary to point the windmill propeller to the windward in order to efficiently receive the energy from the wind, and the streamline shape of the tower and nacelle is responsible for the one wing facing the windward. Yes. The principle that wind turbine equipment naturally faces the windward direction is the air resistance due to the wind and the fluid resistance of water near the waterline of the floating ship.
When a ship is anchored offshore, if it is thrown only at the bow, it will naturally stabilize at a position where the bow is directed upwind. This is because the ship moves the bow to the windward by the resistance of water. Thus, if the wind energy recovery floating ship is always facing upwind, there is no resistance against the wind.
Therefore, in the present invention, for the purpose of constructing a floating ship that has a strong restoring force and always faces upwind, the outer wall shape of the windmill tower and nacelle is streamlined in consideration of the air flow at the upper part of the floating ship, and the keel at the lower part of the floating ship. It is desirable that the weight and the weight also have a streamline shape. However, it is also possible to make the tower and keel into a cylindrical shape and the weight at the end of the keel into a sphere from the viewpoint of construction cost, workability or material strength. Furthermore, in order for the wind energy recovery floating ship to suppress left-right and back-and-forth shaking and tilting, a plurality of fins are attached to the upper part of the weight at an equal angle below the keel. Installation of this fillet is necessary when the keel is cylindrical from the viewpoint of preventing rolling. On the other hand, fins installed vertically with respect to the keel are indispensable because they have a function to prevent pitching of the wind turbine facility. In particular, it has the effect of suppressing the forward tilt of the propeller, and large fins are indispensable.

According to a second aspect of the present invention, as the structure in which the propeller type windmill is always directed to the windward side, a large cargo ship evacuates offshore avoiding a port when approaching a typhoon. This is because if a boat is thrown only at the bow, it will stabilize in a position where the bow will naturally face the windward. This principle is for the ship to move the bow to the windward due to the resistance of water. In general, since a submarine operates only in water, the wave resistance may be a teardrop-shaped shape with a rotating streamline shape like a nacelle on a windmill head regardless of wave resistance. However, the hull in contact with air receives air resistance and water resistance near the water surface. However, since the fluid resistance of water is 800 times that of air, the fluid resistance received from water is large. The fluid resistance component is frictional resistance, wave resistance, and viscous pressure resistance. Friction resistance occurs when the hull surface is rubbed with water. Wave resistance causes waves on the water surface due to frictional resistance at the interface between the water flow and the ship. In the viscous pressure resistance, the fluid around the moving object eventually moves away from the object surface (flow separation), and a vortex is generated behind the object. As a result, the pressure acting on the surface behind the object is reduced, and a difference from the pressure acting on the front is generated. Therefore, in order to minimize the fluid separation in the floating ship and minimize the viscous pressure resistance, the shape below the waterline of the ship should be streamlined, and in order to minimize the wave resistance, the bow that cuts the water Sharpen the part. Furthermore, in order to reduce wave resistance physically, the bow part below the waterline is made a spherical bow. The wave-making resistance attenuation principle by this spherical bow is based on the fact that the wave peaks and valleys generated at the spherical bow under the waterline interfere with each other and the wave valleys and peaks generated at the sharp bow near the waterline interfere with each other. Wave resistance is reduced because they cancel each other. In the present invention, since there is a compressed air storage inside the tower of the floating ship, when a part of this compressed air is ejected from a small hole provided on the bottom of the floating ship, a small bubble covers the ship bottom and drastically reduces frictional resistance. Let In a wide-bottom ship such as a crude oil tanker and a low-speed ship, about 80% of the resistance is frictional resistance, so it is an effective means for reducing frictional resistance. This method of ejecting the compressed air from the bottom of the ship cannot be expected for a stationary structure such as a floating ship, but is effective in a place where the flow rate of water is high. Of course, it is an effective means for a ship that also serves as a transport ship. The rudder under the stern is fixed on a straight line on the line connecting the windward and leeward except for physically changing the direction of the hull. In general, rectifying wings such as a single-sail mizzle on a stern deck and a two-sail spanker, which are found in fishing boats, are effective for directing a floating ship to the windward. In the case of a streamline shape, it is not always necessary, so that it can be removed. In order to keep this windward facing at all times, it is essential to anchor the bow of the wind energy recovery floating ship with an anchor rope or anchor chain.

The invention according to claim 3 is means for starting a windmill which does not turn even if wind blows. In general, in order to start a windmill, a motor is often connected to the rear of the generator so that the wings of the windmill can rotate even in light winds. However, it is uneconomical to install a facility with a low operation rate only at the start. Therefore, in the present invention, in the case of an air compressor that is a device for converting rotational energy into pressure energy linked to the rotation shaft of the propeller, the air inlet of the windmill nacelle is closed, and high-pressure gas (air) is instantaneously supplied from an external cylinder. When the rotation is started, the gas supply is stopped, the air inlet is opened, and the production of compressed air is started. On the other hand, in the case of a hydraulic pump, a gas compression type hydraulic accumulator is used. Hydraulic accumulators include bladder type, diaphragm type, piston type, and in-line type, but adopt piston type with high reliability against destruction. In the piston type, the inner wall side of the cylinder is divided into a gas chamber and an oil chamber by a piston, and each chamber has an intake valve and an oil intake / exhaust valve. First, the intake valve and the oil intake / exhaust valve are opened and the gas chamber is filled with nitrogen gas. Then close the intake valve. In this state, oil is poured into the oil chamber, pressure is applied, the gas is compressed, and when an equilibrium state is reached, the oil take-out valve is closed. Next, at the time of start-up, when the oil take-out valve is opened and the oil suction side of the pressure hydraulic pump is pressurized, the hydraulic pump directly connected to the wind turbine rotating shaft is rotated and started at the ultrahigh pressure obtained by instantaneous pressurization, Start the windmill propeller. After the start-up, the wind turbine is pumped by supplying the oil obtained by increasing the rotational movement of the propeller type wind turbine to high pressure oil by the hydraulic pump to the lower part of the propeller type wind turbine tower or the floating ship deck or the hydraulic actuator. To start. Here, when the hydraulic actuator is a hydraulic motor, electric power is obtained by rotating the generator via a speed-up gear directly connected. In this case, since the speed increasing gear is placed at a position with a low center of gravity, workability is good and high energy is obtained by hydraulic pressure, so the gear with a high speed ratio can be rotated and the generator can be rotated at high speed to generate power. You can also get The reason for turning the generator here is to generate electricity with a wind power recovery floating ship of 1km. However, the gist of the present invention is the case where the hydraulic actuator is a hydraulic cylinder, which creates compressed air in conjunction with an air compressor directly connected to the hydraulic cylinder, stores it in a wind energy recovery floating ship, and then stores a plurality of compressed air. It is to collect in the mother ship and operate a large generator.

The invention according to claim 4 collects wind energy from a plurality of wind power facilities near the surface of the water or at one place on the ground and generates power with one large generator. The basics of conventional wind power generation facilities are that one generator is mounted on one windmill facility, and this constitutes a plurality of groups, and a wind power generation zone is configured, so the nacelle part of these windmill facilities can be easily accessed. In order to do so, it was necessary to install a light generator. Furthermore, since the wind conditions are not constant, temporary storage of the obtained power was indispensable. Therefore, in the present invention, before the wind energy is converted into electric power, the air is compressed with the wind force and stored in the wind turbine tower in the form of compressed air, and the wind at a constant wind speed is always supplied to the generator when necessary. A method of blowing air was adopted. Furthermore, if the generator is installed at a low position such as on the ship or on the ground, the large generator can be driven and high power can be obtained. For this reason, a system was adopted in which the compressed air stored in each windmill facility was collected at the power plant by a high-pressure hose. Although all claims of the present invention are described as a wind energy recovery floating ship that floats on the surface of the water, it is a system that can also be used in onshore wind power areas except for a system that directs the windmill propeller device upwind using natural phenomena . In the onshore wind turbine facility group, the compressed air obtained by each wind turbine can be collected in one place with a high-pressure hose or piping, and power can be generated there. In order to make the propeller type wind turbine naturally windward on land, it is better to use magnetic levitation and eliminate frictional resistance instead of using bearings in the nacelle or pedestal. Can be used as a reservoir by floating a wind energy recovery floating ship in an artificial pond or swamp. Furthermore, the liquid filling the artificial pond may be water or oil.
In the case of offshore, lake water or rivers, collect one or more wind energy recovery floats, preferably a plurality. The compressed air stored inside the windmill tower is accumulated in a mother ship, a water factory, an on-site factory or an on-site factory having a mega-float function through a high-pressure hose, and the accumulated compressed air is accumulated in the mega-float, on-site factory or on-shore In a factory, it is used for the production of liquid air, liquid oxygen, and liquid nitrogen after being repeatedly compressed by a rotating source of a power generation turbine, industrial compressed air, or compressed air. The compressed air pumped from each wind energy recovery floating ship with a high-pressure hose can also be used in a land factory. In the case of a single boat, a generator can be provided in the deck of the floating ship or in the cabin. In general, a hydraulic device has a high temperature driving unit, but seawater, lake water, or river water can be used as cooling water. Moreover, it generates heat by adiabatic compression in the compressed air manufacturing process. These can also use seawater, lake water, or river water as cooling water.

The recovery of offshore wind energy according to the present invention does not directly obtain electric power, but stores pressure-accumulated air as compressed air inside the windmill tower and generates electric power with constant wind speed. In addition, the wind turbine facility will not resist wind even in strong winds, and the bow will always face upwind by reducing wave resistance near the draft line of the floating ship so that wind can be received efficiently even in light winds. The center of gravity position is lowered by adjusting the shape of the cross section to reduce the frictional resistance between the keel and water below the draft surface, the volume of the outer wall that becomes buoyancy or the volume of the internal cavity that becomes the weight, and the weight. Increased resilience. Furthermore, the failure of the speed increasing gears and generators that occurred in the nacelle in the past makes it easier to repair and check by lowering those devices to the vicinity of the surface of the water.In addition, the compressed air from each wind power facility is collected by the mother ship and generated, Large electric power can be obtained with a single large generator, which is highly economical.

Hereinafter, an effective embodiment of the present invention will be described in detail with reference to FIGS.

FIG. 1 is a schematic view of a wind energy recovery floating ship. In order to increase the resilience of the wind energy recovery floating ship floating on the water surface, the center of gravity 2 of the floating ship 1 that is the base of the windmill tower is positioned below the surface of the water, and a straight line passing through the center of gravity 2 and perpendicular to the still water surface is the central axis. The tower 3 that is a streamlined or circular frustum structure is fixed upright. Here, the outer wall of the tower 3 may be circular, but a streamline shape having a wind rectifying effect is desirable in order to make the propeller type wind turbine 6 naturally go upwind. Traditionally, the inside of the tower has little value. In the present invention, the inside of the tower is used as the compressed air storage 4. When the air is compressed, the volume becomes small and a large capacity can be stored. When the compressed air is released, a large output is released. It is a wind battery (accumulated pressure). The air outlet is preferably at the top of the tower, except that the wind contains moisture and the ocean contains salt. For this reason, a filter for dehydration and desalting is necessary. In the present invention, since the propeller-type windmill 6 is naturally directed to the windward, the draft line of the floating ship 1 is important. The floating ship 1 as a pedestal of the tower 3 has a structure in which the nacelle 5 and the propeller type windmill 6 are integrated at the upper tower top portion with the draft surface as a boundary. In order to convert the rotational energy generated by the wind power of the propeller-type windmill 6 into pressure energy, an air compressor 8 linked to the rotation shaft 7 of the propeller-type windmill 6 is installed inside the nacelle, and compressed air is produced in the nacelle. Store in the internal compressed air storage 4. The installation location of the air compressor 8 is preferably in the nacelle in the case of the rotary type, but in the case of the piston type, it is converted into a linear motion via the crankshaft on the rotary shaft 7 of the propeller type windmill 6 and the piston is arranged at the upper part in the tower. A type compressor can also be attached. A piston type compressor can also be arranged in the nacelle by arranging it radially on the vertical axis of the rotating shaft 7 of the propeller type windmill 6. The advantage of hydraulic pressure is that it can send high pressure far away with a relatively narrow tube. Furthermore, corrosion due to salt damage becomes a problem in the ocean. In this respect, the hydraulic device is resistant to corrosion and is desirable in terms of durability and operability. Therefore, only the rotary hydraulic pump 9 is attached to the rotary shaft 7 of the propeller-type windmill 6, and all heavy objects such as the hydraulic control device 11, the hydraulic actuator 10, the generator and the large hydraulic device are below the tower on the draft surface or the floating ship deck. If it is attached, it is desirable in terms of workability, safety, maintenance and inspection. Furthermore, the center of gravity 2 was lowered so that the wind power recovery floating ship at the head would not fall down and the resilience was increased. Therefore, a keel (center board) 13 was attached to the lower support (pedestal bottom) of the draft surface of the floating ship 1, and a weight (ballast) 14 was attached to the end thereof. The shape of the weight 14 is an ellipsoidal body such as a rugby bowl when the keel 13 is wide, and is a sphere when the structure is cylindrical. In the present invention, in addition to improving the restoring force, the propeller type windmill 6 is resistant to rolling and vertical shaking, and considering the maintenance and inspection and transportation of the device from the port to the installation location, the inside of the keel 13 is The cavity 12 is formed, and in some cases fills air to act as a buoyant body, and at the time of wind energy recovery, the cavity 12 is filled with water to stand up stably. The outer wall of the keel 13 has a streamline shape, a circular shape, or an elliptical cylindrical shape or conical shape, but the amount of air or water injected into the cavity inside the windmill structure is taken into account, and the windmill structure is laid sideways. Considering the structure that keeps standing up and with little vertical shake, the shape of the keel, the volume of the outer wall, or the volume of the internal cavity is specified by assuming the case of lying down or sinking. In particular, a streamlined shape with a rectifying effect is desirable when the flow of water is strong. Further, fins 15 are attached to both sides in the vertical direction with respect to the keel 13 in order to suppress pitching in the lower part of the keel 13. When the keel 13 is a cylinder, it is necessary to attach the fins at an equal angle. However, when the keel is wide (the longitudinal sectional area is large), it is not necessary to attach the fins 15 in the horizontal direction of the keel 13. The compressed air storage 4 inside the tower is provided with a compressed air storage separately at the upper part and the lower part of the tower, and the lower part of the tower can be used when the water is filled for emergency evacuation during a typhoon and submerged under the surface of the water. The compressed air inlet may be at the top or bottom of the tower. The outlet of the compressed air is desirably the lower part of the tower, and the same applies to the case of generating the microvalve below the water surface, but is not limited to the lower part.
In the present invention, in claim 2, as a mechanism 16 in which the propeller type windmill always faces upwind, the draft and the draft of the floating portion of the floating ship 1 with respect to the wind and water resistance and streamline in the vicinity of the draft line of the floating ship 1 as the pedestal of the tower 3 The vicinity has a pointed shape 17 to reduce wave resistance, and a wave-shaped peak and valley generated at the spherical bow under the waterline are generated at the pointed bow near the waterline. The wave valley and the mountain interfere with each other and the two waves cancel each other, so that the wave-making resistance is reduced. Furthermore, both sides of the floating ship below the draft surface are streamlined to reduce frictional resistance, and a small hole is made in the bow and bottom of the floating ship, and compressed air is ejected from the compressed air storage 4 inside the tower. When the microbubbles 23 are generated, small bubbles cover the ship bottom and drastically reduce the frictional resistance. This method of ejecting the compressed air from the bottom of the ship cannot be expected for a stationary structure such as a floating ship, but is effective in a place where the flow rate of water is high. The rudder 21 below the stern surface is fixed on a straight line on the line connecting the windward and leeward except that the direction of the hull is physically changed. In general, the rectifying wings 22 such as a single-sail mizun or a two-span spanker on a stern deck, which are found in fishing boats, are effective for directing a floating ship to the windward. Since the tower is not necessarily required in the case of a streamline shape, it can be detached. The most important thing to keep the floating ship 1 facing upwind is to connect the anchor rope or anchor chain to the hook attached to the part above the waterline of the bow part of the floating ship 1 and fix the bow with the anchor rope (throwing). 20 to do. If this anchor rope comes off, it has no effect.

FIG. 2 is a schematic view for starting the propeller type wind turbine with gas pressure. The propeller type windmill 6 does not rotate even if the wind blows. For this reason, starting is necessary. In the present invention, when the air compressor 8 is interlocked with the rotary shaft 7, the air inlet valve 24 of the air inlet of the windmill nacelle is closed, and high pressure gas is instantaneously (pulsed) sent from the external cylinder for a short time. When the engine is started, the gas supply is stopped, and if the air inlet is opened, the production of compressed air is started in that state.

FIG. 3 is a schematic diagram for starting a propeller-type wind turbine with a hydraulic accumulator and converting the hydraulic pressure after the start into a rotational motion. In order to start the hydraulic pump 9 with the hydraulic pressure obtained by the rotary motion, a gas compression type hydraulic accumulator 26 is used. The hydraulic accumulator 26 is a piston type. In the piston type, the inner wall side of the cylinder is divided into a gas chamber and an oil chamber by the piston, and each chamber has an intake valve and an oil take-out valve. When these valves are controlled by the hydraulic accumulator control valve 27 and the oil intake / outlet valve is opened and the oil suction side of the hydraulic pump is pressurized at the start-up, the wind turbine rotating shaft 7 is at a super high pressure obtained by instantaneous pressurization. The hydraulic pump 9 directly connected to is started to rotate, and the propeller type windmill 6 is started to rotate. After startup, the rotary motion of the propeller type windmill 6 is increased to high pressure oil by the hydraulic pump 9 and this oil is pumped to the hydraulic actuator 28 via the hydraulic control device 11 provided at the lower part of the tower 3 or on the floating ship deck. The propeller type windmill 6 starts work. Here, when the hydraulic actuator 28 is a hydraulic motor 29, the generator 31 is rotated via the directly connected speed increasing gear 30 to obtain electric power.

FIG. 4 is a schematic diagram for starting a propeller type wind turbine with a hydraulic accumulator and converting the hydraulic pressure after the start to a reciprocating motion. In order to pump the high pressure oil obtained by the rotational movement of the hydraulic pump 9 to the hydraulic actuator 28 via the hydraulic control device 11 provided in the lower part of the tower 3 or on the floating ship deck, A hydraulic cylinder 32 is used. Here, compressed air is made by the air compressor 33 directly connected to the hydraulic cylinder 32 and stored in the compressed air storage 4 of the wind energy recovery floating ship, and then a plurality of compressed air is collected in the mother ship to operate the large generator. Used for.

FIG. 5 is a system diagram for collecting compressed air accumulated in a plurality of propeller type windmills into a mega float. The compressed air accumulated in the compressed air storage 4 of each propeller-type windmill 6 is collected by the high-pressure hose 24 into the mother ship and the megaflow 34, rotated at a high speed by the power generation turbine 35, and rotated by the large generator 31 to generate electric power. obtain. The mother ship and Megaflow 34 are equipped with a water factory, an on-site factory, a liquefied gas factory, an electrolysis factory, and the like. By being heated in the waste heat of these factories or the solar heat concentrating facility installed in the mega float 34, the compressed air is thermally expanded and further increased in pressure to rotate the power generation turbine 35. In addition to power generation, the compressed air collected in the mother ship and the Megaflow 34 further compresses the compressed air, and waste heat obtained by adiabatic compression is used as a heat source, and the compressed air further uses the adiabatic expansion phenomenon. Thus, liquid air is produced, and liquid nitrogen and liquid oxygen are produced therefrom. Alternatively, it is used as a drive source for machinery in each factory. In particular, although the drive unit of the hydraulic device is hot, seawater or lake water can be used as cooling water.

FIG. 6 is a schematic view of a floating ship in which the pedestal of the wind energy recovery floating ship has a spherical or ellipsoidal shape. The difference from the wind energy recovery floating ship shown in Fig. 1 is that the base is a sphere or ellipsoid, the ship's bow is deformed to a sphere or ellipsoid, and the vicinity of the waterline is pointed 17 to reduce wave resistance. The crest and valley of the wave generated at the spherical bow under the water line with the spherical bow structure 18 under the water surface of the bow part interfered with each other by the trough and crest of the wave generated at the sharp bow near the water line. Wave resistance is reduced because two waves cancel each other. This structure assumes that a submarine that has surfaced will run at high speed on the surface of the water, sharpens the bow near the waterline, and both the spheres or ellipsoidal pedestals below the waterline form a streamline shape and friction resistance When a small hole is made in the bow and bottom of the floating ship, and compressed air is ejected from the compressed air storage 4 inside the tower to generate the microbubble 23, the small bubble covers the bottom of the ship and drastically reduces frictional resistance. Let This method of ejecting the compressed air from the bottom of the ship cannot be expected for a stationary structure such as a floating ship, but is effective in a place where the flow rate of water is high. Furthermore, since the windmill is less susceptible to shaking, construction, repair and inspection are easy, and it is easy to evacuate during strong winds such as typhoons, the structure of the windmill is a spherical or elliptical base (floating ship) The end of the keel 11 extending downward from the bottom of the pedestal 36 is provided with a spherical or ellipsoidal weight 14, and the lower end of the keel 11 is parallel to the windward side to prevent shaking and tilt. The fins 15 are attached so as to form. In order to keep the windmill always facing upwind, a tower 3 is placed on the top of the pedestal, and a nacelle 5 is provided at the top of the tower, and a crank attached to the rotating shaft of the windmill is placed in the nacelle. The air is compressed with a multistage compressor installed at the head of the wind turbine tower, or the air is compressed with a rotary compressor attached to the wind turbine rotating shaft and filled into the wind turbine tower / pressure cylinder. When the wind turbine device is towed, constructed, repaired or maintained, the tower is used as a tower / high-pressure cylinder. Water can also be injected to submerge vertically below the surface of the water. This submergence can also be used to repair and inspect the nacelle and compressor. Further, in order to keep the windmill always upwind, a hook for anchor rope fixing (throwing) 20 is attached to the bow of the pedestal 36, and the anchor rope 21 is connected via a sarkan. A planar rudder 21 is fixed on the leeward side of the pedestal 36 so as to be in the same direction as the wind flow.

FIG. 7 is a conceptual diagram showing an upright state of a floating ship in which a pedestal portion of the wind energy recovery floating ship has a spherical or ellipsoidal shape. (A) is an external view, (B) is an internal structure diagram. In order to erect this windmill facility, seawater or water is injected as ballast into the pedestal interior 38 and the cylindrical pipe interior 40 and submerged to the neck of the ball pedestal 36. Then, the rotation of the propeller type wind turbine 6 is changed to a vertical motion by the crankshaft inside the nacelle 5, and the compressed air is produced at the compressed air manufacturing plant 2, and this is converted into the streamlined columnar tower inside (compressed air cylinder chamber) 40. Store.
FIG. 8 is a schematic diagram for maintenance inspection and emergency evacuation of the wind energy recovery floating ship. (A) is a state diagram laid on the water surface, (B) is a state diagram submerged under the water surface. In order to lay the windmill device on the water surface as in (A), when the water inside the pedestal 38 and the keel 39 is drained, it gradually begins to tilt sideways as the amount of drainage increases, and finally lies on the side. become. In particular, when the windmill body is pulled from the port, at the time of construction, maintenance inspection or repair, the water is drained and brought down to the surface of the water. There is no need for a large crane, and it is possible to economically carry out shortening of the latter period, maintenance inspection and repair. In addition, if there is no action due to strong winds such as when a typhoon is approaching, the compressed air inside the streamlined column tower 40 is discharged, and if water is injected there, it gradually sinks below the surface of the water. Propellers have two wings that are easy to build.

FIG. 9 is a schematic view of a multistage compressed air manufacturing piston. In order to prevent the windmill from overturning, it is necessary to lighten the head of the windmill device, that is, the nacelle 5, and to reduce the wind receiving area of the nacelle portion. For this purpose, we decided to put a compressor instead of a generator. Previous windmills had a gear mounted on the nacelle to direct the propellers upwind. However, in the present invention, the nacelle portion can be fixed to the tower because the tower itself is directed to the windward side. Therefore, in this case, a multistage squeezer on the upper part of the wind turbine tower (on the outer peripheral portion of the wind turbine pulley 41 attached to the wind turbine rotating shaft 7 in the nacelle 5 via a lateral slide type crankshaft 42 for converting rotational motion into vertical motion ( Compressor 43 compresses the air sucked from air inlet 44. Up and down movement converted by the crankshaft 42 is transmitted to the plurality of pistons 46 in the cylinder 45 via the vertical transmission rod 47, and at the same time, the intake check of each cylinder that opens and closes in conjunction with the vertical transmission rod 47 The valve 48 and the exhaust check valve 49 of each cylinder work, and the compressed air is discharged from the compressed air outlet 50. The rotation of the windmill can be promoted using gears, but here, the air suction chamber and the compression chamber are arranged in opposite directions in the piston 46 in the cylinder 45 to balance the force. The compressed air produced here is temporarily stored in the compressed air cylinder chamber inside the streamlined columnar tower of the windmill, and sent to the liquid air manufacturing factory of the mother ship via the high-pressure hose. By using this multistage press 43, hydrogen produced by electrolyzing water can be squeezed to produce liquid hydrogen.

According to the present invention, rotational energy from wind power is converted into pressure energy as compressed air, stored in a tower that is a part of the wind turbine structure, and the accumulated compressed air is collected in one place for power generation. The machine can be enlarged and high power can be obtained. In addition, it is more efficient to construct multiple wind turbine structures that are cheaper and have a function of producing and storing wind-compressed air consisting of only mechanical mechanisms, rather than installing multiple wind turbine facilities with high equipment costs. Considering equipment cost, construction cost, failure rate, maintenance cost, etc., it is economically advantageous. Rather than adapting the construction technology of offshore wind turbine facilities, which had been implemented in shallow waters such as Europe and China, to the sea near Japan, the land of Japan, which has a deep ocean depth and the coastline has about 80% of the equator of the earth, is useful. Because it is possible to generate a large amount of power by launching a floating ship structure system that can generate compressed air-driven power generation that is not affected by the weather conditions and is not greatly affected by weather conditions, regardless of the depth of the ocean. As well as leading to industrial revitalization, it is inexhaustible not only in terms of calming down the current situation of global resources depletion and resource soaring, or the emergence of new resource suppliers and associated influences on the international community. It is important for Japan's industry surrounded by the sea to seek a path to clean and renewable marine resources and natural energy and secure it as an alternative energy source for fossil fuels. Sakaikami, even considered can be a important means economically.

It is a general-view figure of a wind energy recovery floating ship. It is the schematic for starting a propeller type windmill with gas pressure. It is the schematic for starting a propeller type | mold windmill with a hydraulic accumulator, and converting the hydraulic pressure after a start into rotational motion. It is the schematic for starting a propeller type | mold windmill with a hydraulic accumulator, and converting the hydraulic pressure after a start into a reciprocating motion. It is a system diagram for collecting the compressed air accumulated in a plurality of propeller type windmills into a mega float. It is a floating-type ship general-view figure which made the base part of the wind energy recovery floating body ship spherical or an ellipsoid. It is a conceptual diagram which shows the upright state of the floating ship which made the base part of the wind energy recovery floating ship the spherical shape or the ellipsoid. (A) is an external view, (B) is an internal structure diagram. It is a schematic diagram for maintenance inspection and emergency evacuation of a wind energy recovery floating ship. (A) is a state diagram laid on the water surface, (B) is a state diagram submerged under the water surface. It is the schematic of a multistage type compressed air manufacture piston.

1 Floating ship 2 Center of gravity
3 Tower 4 Compressed air storage 5 Nacelle 6 Propeller type windmill 7 Rotating shaft 8 Air compressor 9 Hydraulic pump 10 Hydraulic actuator 11 Hydraulic control device 12 Cavity (water tank)
13 Kiel (center board)
14 weights (weight, ballast)
15 Fin 16 A mechanism that always faces the windward 17 Water line at the bow (pointed shape)
18 Under the waterline (spherical bow structure)
19 Below the draft (streamline shape)
20 Anchor the bow with anchor rope (throwing)
21 Rudder 22 Rectifier blade (Mizun, Spanker)
23 Microbubble (with compressed air)
24 Air inlet valve 25 Super high pressure gas (nitrogen gas)
26 Hydraulic accumulator 27 Hydraulic accumulator control valve 28 Hydraulic actuator 29 Hydraulic motor 30 Speed increasing gear 31 Generator 32 Hydraulic cylinder 33 Air compressor 34 Mega float (mother ship, water factory, on-site factory), land factory 35 Turbine for power generation 36 Sphere or ellipsoid pedestal (floating ship)
37 Compressed air factory 38 Inside of pedestal (water: ballast)
39 Inside the keel (water: ballast)
40 Streamlined columnar tower interior (compressed air cylinder chamber)
41 Windmill pulley 42 Side-sliding crankshaft (Rotary motion → Converted to vertical motion)
43 Multi-stage press (compressor)
44 Air inlet 45 Cylinder
46 Piston 47 Vertical transmission rod 48 Inlet check valve 49 of each cylinder Exhaust check valve 50 of each cylinder Compressed air outlet

Claims (4)

A windmill tower base is a floating ship that floats on the surface of the water, and a tower that is a streamlined or circular frustum structure as a support perpendicular to the center of gravity of the floating ship is erected, and the inside of the tower is compressed air The top of the tower above the draft surface of the floating ship is a structure in which a nacelle and a propeller-type windmill are integrated, and an air compressor linked to the rotation shaft of the propeller-type windmill and / Alternatively, a rotational energy and / or pressure energy conversion device such as a hydraulic pump is attached, and the lower part of the tower or the floating ship deck is provided with a hydraulic actuator and a hydraulic control device linked to the hydraulic actuator, and below the floating ship draft surface. The keel portion, which is the side support, is filled with water, and the outer wall cross section of the keel is streamlined, circular, or elliptical, The ellipsoidal or spherical weight and a plurality of fins are attached to the upper side of the weight at equal angles, and the propeller type windmill is provided in the vicinity of the draft surface of the floating ship so that the propeller type windmill always faces upwind, A wind energy recovery floating ship characterized in that the tower is provided with a container for accumulating compressed air obtained by the rotational force of the propeller type windmill. As a structure in which the propeller-type windmill always faces upwind, the vicinity of the draft line at the bow part of the floating ship has a pointed shape that reduces wave resistance, and has a spherical bow structure under the water surface of the bow part. A structure in which the bow is fixedly anchored with an anchor rope, a rudder is provided under the surface of the stern of the floating ship, and a rectifying wing is provided on the stern deck so that the stern deck can be detached as required. 2. The wind energy recovery floating ship according to claim 1, wherein the compressed air is ejected from the provided small hole as necessary. In order to start the propeller type wind turbine, when the conversion device from rotational energy to pressure energy is the air compressor, the air inlet valve is closed and the high pressure gas is injected, and after the start, the air inlet valve is opened. When the hydraulic pump is used for producing the compressed air and the conversion device from rotational energy to pressure energy is the hydraulic pump, the hydraulic pump that is directly connected to the wind turbine rotating shaft is rotated with the hydraulic accumulator obtained, and rotated. After starting, the oil obtained by increasing the rotational movement of the propeller-type windmill with the hydraulic pump is pumped to the hydraulic device and the hydraulic actuator provided in the lower part of the propeller-type windmill tower or the floating deck. When the hydraulic actuator is a hydraulic motor, means for obtaining electric power by rotating a generator via a speed-up gear directly connected, and the hydraulic actuator It claims 1 and 2 wind energy recovery floating ship, wherein it has a means for obtaining a compressed air in conjunction with the air compressor directly connected in the case of Nda. In a single or multiple wind energy recovery floating ship, the inside of the tower, which is a streamlined or circular frustum structure integrated with a propeller type windmill, is a compressed air storage, and the draft surface of the floating ship The compressed air stored inside the upper tower is accumulated in a mother ship having a mega float function, a water factory, an on-site factory, or an on-site factory through a high-pressure hose, and the accumulated compressed air is stored in the mega float or on-site factory. 2. The wind energy recovery floating ship according to claim 1, wherein the wind energy recovery floating ship is used for producing a rotation source of a power generation turbine, compressed air for industrial use, or liquid air, liquid oxygen, or liquid nitrogen in an onshore factory.