CN209892375U - A floating wave-current combined power generation device - Google Patents

Abstract

The utility model belongs to the technical field of marine new energy, and in particular relates to a floating wave-current combined power generation device. The utility model rationally integrates an oscillating float type wave energy generating device and a vertical axis ocean current energy turbine to generate electricity through a tower-type combined generating platform consisting of a cylindrical combined generating room, a round table-type tower and a cage-type disc-type tower body. device. The utility model adopts the direct drive transmission mode, which avoids the problem of excessive energy loss in the multi-layer transmission and saves the internal space. The frame structure of the tower platform reduces the contact area between the device and the water, and greatly reduces the resistance and vortex-induced vibration. The utility model is distributed axially symmetrically on the whole, has simple and compact structure, strong reliability, increases the total energy output per unit ocean space, and has high market application value.

Description

A floating wave-current combined power generation device

technical field

The utility model belongs to the technical field of marine new energy, and in particular relates to a floating wave-current combined power generation device.

Background technique

With the increasing demand for energy and the continuous reduction of traditional fossil energy, energy shortage has become an urgent problem to be solved. It is the common goal of today's world to seek new clean and renewable energy to replace traditional energy. Ocean energy is a kind of renewable energy with great development potential. The ocean is rich in wave energy and current energy, which is an inexhaustible clean and renewable energy. Wave energy has high energy density and wide distribution; ocean current energy flows stably with strong regularity; both are easy to manage the power generation and distribution of power grids.

Because wave energy and ocean current energy have good quality and development and utilization value, they are widely favored all over the world, and various forms of wave energy power generation devices and ocean current energy power generation devices have been developed and tested. The oscillating float type wave energy power generation device obtains energy through the up and down movement of the float on the sea surface under the action of the wave, and then transfers the wave energy absorbed by the float to the motor through the transmission device to drive the generator to generate electricity. The vertical axis water turbine type ocean current energy power generation device obtains energy by driving the water turbine to rotate through the flow of the ocean current, and transmits it to the motor through the transmission device to drive the generator to generate electricity.

Existing independent wave energy power generation devices and ocean current energy power generation devices are difficult to ensure the continuity of power generation during operation. In order to improve the utilization rate of energy per unit of ocean space and reduce the cost of power generation, the utility model designs a floating wave-current combined power generation device, which reasonably integrates an oscillating float-type wave energy power generation device and a vertical axis ocean current through a tower platform. The water turbine power generation device has the advantages of simple structure, reliable performance, low cost and high total power generation.

Utility model content

The purpose of the utility model is to provide a floating wave-current combined power generation device that integrates the oscillating float type wave energy power generation device and the vertical axis ocean current energy turbine power generation device to realize the energy complementarity of the wave energy and the ocean current energy.

The purpose of the present utility model is achieved through the following technical solutions:

A floating wave-current combined power generation device includes a wave energy power generation device and an ocean current energy generation device, as well as a combined power generation room and a mooring positioning device; the wave energy power generation device includes a float and a linear motor; the ocean current energy generation device The device includes an ocean current energy turbine and an axial motor; the linear motor and the axial motor are both arranged inside the combined power generation chamber; the float is integrally sleeved on the outside of the combined power generation chamber, and the float and the linear motor inside the combined power generation chamber are driven by transmission rod connection; the ocean current energy turbine is installed below the combined power generation room, the main shaft of the ocean current energy turbine passes through the bottom of the combined power generation room and is connected with the axial motor inside the combined power generation room; the combined power generation room is equipped with a power integrated The power input channel of the power integration device is respectively connected with the linear motor and the axial motor; the mooring positioning device is installed below the ocean current energy turbine.

The utility model can also include:

The outer side of the combined power generation room is provided with a sliding rod, and the two ends of the sliding rod are provided with limiting devices; the float is provided with a chute; the float is installed on the sliding rod outside the combined power generation room through the chute .

The interior of the co-generating chamber is divided into four parts in sequence: a wave energy power generation cabin, a centralized power storage cabin, an ocean current power generation cabin and a ballast cabin; the linear motor is installed in the wave energy power generation cabin; the The axial motor is installed in the ocean current energy generation cabin; the power integration device is installed in the centralized power storage cabin.

It also includes a tower body; the tower body includes an upper deck and a lower deck, and the upper deck and the lower deck are connected by columns; one end of the main shaft of the ocean current energy turbine is installed on the lower deck, and the other end passes through the upper deck and combined power generation The bottom of the chamber is connected to the axial motor inside the cogeneration chamber.

The anchoring and positioning device is a tensioned and crossed anchoring and positioning device; the tensioned and crossed anchoring and positioning device includes an anchor chain, and each group of anchor chains is provided with two tensioned and cross-arranged anchor chain lines; The edge of the deck is provided with a fairlead; the upper end of each anchor chain line is installed at the fairlead on the edge of the lower deck, and the bottom end is installed with a sea anchor.

The said co-generating chamber is a cylindrical structure; the said floats sleeved on the outside of the co-generating chamber is a cylindrical structure with a hole in the middle; the upper deck and the lower deck of the tower body are both disc-shaped structures ; The diameter of the upper deck is larger than the outer diameter of the float; the diameter of the lower deck is larger than the diameter of the upper deck.

A tower is arranged between the upper deck and the bottom of the combined power generation room; the tower is a hollow circular truncated structure, the upper ring of the tower is connected with the bottom of the combined power generation room, and the upper ring of the tower is connected with the bottom of the combined power generation room. The lower ring of the tower is connected with the upper deck of the current energy turbine; the outer diameter of the lower ring of the tower is larger than the outer diameter of the upper ring of the tower.

The beneficial effects of the present utility model are:

The utility model provides a floating wave-current combined power generation device, which combines a wave energy conversion device and an ocean current conversion device. The wave energy conversion device and the ocean current energy conversion device of the utility model share a set of power generation system and mooring system. Compared with the traditional independent wave energy power generation and ocean current energy generation, the utility model makes the two energy sources of the wave energy and the ocean current energy complement each other. , significantly reducing the total cost. The utility model adopts a direct drive transmission mode, which directly transmits the motion of the float and the main shaft to the secondary of the linear motor and the rotor of the axial motor. This transmission mode avoids the problem of excessive energy loss in multi-layer transmission and saves combined power generation. interior space of the room.

The tower frame structure of the utility model reduces the contact area between the device and the water, greatly reduces the resistance and the generation of vortex-induced vibration; the application of the deck reduces the mutual influence of the float and the water turbine when working, and reduces the vibration of the ocean current energy device up and down. The mooring positioning adopts a tensioned cross arrangement, which not only provides the restoring force in the sway, surge and heave directions, but also generates a large yaw restoring moment, which offsets the huge torque of a single vertical axis current energy turbine on the platform, thereby ensuring the safety of the device. stability. The utility model has the advantages of axisymmetric distribution as a whole, simple and compact structure, strong reliability, increased total energy output per unit ocean space, and high market application value.

Description of drawings

Figure 1 is a schematic diagram of the overall structure of the present invention.

FIG. 2 is a schematic diagram of the assembly of the float and the combined power generation chamber of the present invention.

Figure 3 is a schematic diagram of the tower of the present invention.

Figure 4 is a schematic diagram of the cage disc type tower body of the present invention.

Detailed ways

The present utility model will be further described below in conjunction with the accompanying drawings.

The utility model provides a floating wave-current combined power generation device with a simple structure, which utilizes sea wave energy and ocean current energy for combined power generation.

As shown in FIG. 1 , the utility model includes a wave energy absorption device floating on the sea surface, a vertical axis ocean current energy turbine submerged under the sea surface, a tower-type combined power generation platform and a cross mooring positioning device. The whole set of devices adopts tensioned cross anchoring and positioning device 11 to be positioned in the designated water area to limit the displacement of the device.

as shown in picture 2. The tower-type combined power generation platform consists of three parts: the upper cylindrical combined power generation chamber 3 is used to connect the float and power generation, the round table tower is connected to the cylindrical combined power generation chamber and the cage-type disc-type tower body, and the cage-type disk-type tower body The middle is equipped with a vertical axis current energy turbine. The interior of the combined power generation chamber is divided into four parts from top to bottom through the first baffle 14, the second baffle 24 and the third baffle 18, the wave power generation cabin, the centralized storage cabin, the ocean current power generation cabin and the ballast tank.

The float 2 of the wave energy absorption device reciprocates up and down under the action of the waves, thereby driving the movement of the transmission rod 1 connected to the upper surface of the float. The movement of the transmission rod 1 is directly transmitted to the linear motor secondary 22 through the first coupling 12 , and the movement of the transmission rod 1 drives the linear motor secondary 22 to perform linear reciprocating motion, thereby making the linear motor 13 work. The transmission rod 1 and the upper surface of the float are tightly connected through the flange structure. The float and the buoy are limited by means of the sliding rod 16. The sliding rod 16 is located in two symmetrical positions of the buoy. There is a rectangular chute on the inner surface of the float and the position corresponding to the sliding rod. The float is free between the first and the end of the sliding rod 16 sports.

The ocean current energy turbine drives the rotation of the main shaft 4 through the rotation of the H-type vertical axis turbine blades 9 . The rotation of the main shaft is directly transmitted to the rotor 19 of the axial motor through the second coupling 26, so that the axial motor works. A main shaft bearing 27 is provided at the connection between the main shaft and the lower deck 6 and the connection at the lower end cover 20 of the combined power generation room. The current energy turbine is located between the upper deck 5 and the lower deck 6. The schematic diagram of the connection between the upper deck 5 and the lower deck 6 is shown in Figure 4. The four upright columns 10 are connected by the flange structures at the beginning and the end, and assembled into a cage disc type. Tower body. The turbine is located in the circular hole of the flange.

The linear motor secondary 22 in the tower-type combined power generation platform obtains the movement of the transmission rod from the upper part of the cylindrical platform to cut the linear motor primary, and the rotor 19 of the axial motor is obtained from the bottom of the cylindrical combined power generation chamber 3. The torque thereby cuts the stator of the axial motor. The electric power generated by the operation of the linear motor 13 and the axial motor 17 is respectively transmitted to the power integration device 15 located on the second partition plate 24 through the first power input channel 23 and the second power input channel 25, and the power in the power integration device Power is delivered to the outside through the power output channel 21 .

The circular truncated tower is connected to the cylindrical combined generating room and the cage-type disc tower through the flange structure on both ends, as shown in Figure 3. The tower is a hollow circular truncated structure, and the upper ring and the lower ring of the tower are connected by four small cross-section inclined beams 8, which are used to support and fix and expand the acquisition area of the ocean current and reduce the total resistance of the device.

The mooring positioning device 11 adopts three sets of anchor chains distributed at 120 degrees to each other. Each set of anchor chains has two anchor chain lines tensioned and crossed. 6. The outer edge fairlead 28 is connected, and the lower end is connected with the seabed anchor 7.

Taking into account the humid environment at sea, in order to prevent corrosion problems, anti-corrosion paint is applied on the outside of each part.

The utility model can rely on waves and water currents to operate, does not consume fuel, oil and other energy sources, and does not generate pollutants. As long as the sea waves and tides are continuous, the float and the water turbine can continuously generate electricity, which is an ecological and environmental protection power generation device.

The wave energy float, the ocean current energy turbine and the tower-type combined power generation platform of the utility model are located above the cross-type mooring positioning device, which avoids the problem of entanglement between the power generation device and the mooring line caused by the platform bowing motion.

The wave energy power generation device adopts linear motor direct drive to generate electricity, and the ocean current energy generation device adopts axial motor direct drive to generate electricity. The two power generation devices share a tower-type combined power generation platform and mooring system, and use a power integration device to integrate power supply.

The tower-type combined power generation platform is composed of three parts: a cylindrical combined power generation room, a round table-type tower and a cage-type disc-type tower body.

The interior of the cylindrical combined power generation chamber is divided into four parts: the wave energy power generation chamber, the centralized storage chamber, the ocean current energy generation chamber and the ballast tank by the upper end cover, the three-layer partition plate and the lower end cover. The outside of the cylindrical combined power generation chamber is connected with the wave energy float by sliding guide rails.

The cage-type disc-shaped tower body is composed of an upper disc-shaped deck, four ring-shaped columns in the middle and a lower disc-shaped deck.

The diameter of the upper disc deck on the cage disc tower is larger than the outer diameter of the wave energy float, which is used to block the adverse effect of the float vibration on the ocean current energy flow field; the diameter of the lower disc deck is larger than that of the upper disc deck. The purpose is to reduce the heaving motion of the combined power generation platform, thereby increasing the relative motion of the wave energy float and the platform, and improving the energy utilization rate of wave energy; the upper and lower baffles form a current gathering cover, which improves the energy utilization rate of ocean current energy.

The cross-type mooring positioning device adopts three sets of anchor chains distributed at 120 degrees to each other. Each set of anchor chains has two anchor chain lines tensioned and crossed. The outer edge fairlead is connected, and the lower end is connected with the submarine anchor.

The purpose of the utility model is to provide a floating wave-current combined power generation device, the wave energy conversion device and the ocean current energy conversion device of the device share a platform and a mooring system, and can realize the energy complementation of wave energy and ocean current energy.

The utility model comprises a wave energy absorption device floating on the sea surface, a vertical axis ocean current energy turbine submerged under the sea surface, a tower-type combined power generation platform and a cross mooring positioning device. The wave energy absorption device of the utility model generates heaving motion by absorbing the wave energy, and the heaving motion is transmitted from the top of the tower-type combined power generation platform to the secondary of the linear motor through the transmission rod connected with the float, so as to drive the linear motor to generate electricity; The absorption device absorbs the ocean current energy through the vertical axis ocean current energy turbine blades to generate rotational motion, and transmits the energy from the bottom of the combined power generation room of the tower combined power generation platform to the internal axial motor through the spokes and the main shaft to generate electricity; the two motors pass through the power conversion system. The energy is stored in the power integration device to supply power to the load centrally.

The tower-type combined power generation platform is composed of three parts: the cylindrical combined power generation room is connected to the wave energy float outside, and the combined power generation system is equipped inside; A vertical-axis ocean current energy turbine is installed in the middle of the disc-shaped tower. In the lower part of the tower body of the tower-type combined power generation platform, a tensioned cross-combined mooring and positioning device is used to locate in the designated water area.

The wave energy device and the ocean current energy device of the utility model adopt a direct drive type transmission to transmit the energy to the linear motor and the axial motor to generate electricity, and the transmission mode has a simple structure and high reliability.

The utility model adopts two sets of power generation devices to generate electricity respectively and transmits the power to the power integrated device through the integrated circuit, which can avoid the occurrence of the transmission device converting wave energy and ocean current energy into the same energy, and one set of power generation devices is used to generate energy during the power generation process. The problem of excessive loss increases the power generation capacity of the entire device.

The cage disc-shaped tower body of the utility model adopts four vertical columns to connect the upper and lower decks, which does not affect the head-flow area, increases the stability of the water turbine, and strengthens the structural strength of the entire device.

The utility model adopts a tensioned cross anchoring and positioning device, which ensures the stability of the whole set of devices in static and running states. The fairlead connected to the mooring is located at the edge of the lower deck, which increases the length of the lever arm and the angle between the force and the lever arm when the mooring point is stressed, thereby increasing the yaw recovery moment.

The utility model provides a floating wave-current combined power generation device, which combines a wave energy conversion device and an ocean current conversion device. The wave energy conversion device and the ocean current energy conversion device of the utility model share a platform and a mooring system, which is different from the traditional independent Compared with wave energy power generation and ocean current energy generation, the utility model makes the two energy sources of wave energy and ocean current energy complement each other, which significantly reduces the total cost. The wave energy power generation device adopts an oscillating float, and the ocean current energy power generation device adopts an H-type vertical axis turbine. The floating wave-current combined power generation device adopts a direct drive transmission method, which directly transmits the motion of the float and the main shaft to the secondary of the linear motor and the rotor of the axial motor. This transmission method avoids the problem of excessive energy loss in the multi-layer transmission. The internal space of the co-generating room is saved. The frame structure of the tower platform reduces the contact area between the device and the water, and greatly reduces the resistance and vortex-induced vibration. The application of the deck reduces the interaction between the float and the turbine when working, and reduces the vibration of the current energy device up and down. The cross mooring positioning device provides the restoring force in the directions of sway, surge and heave, and at the same time generates a large yaw restoring moment, which offsets the huge torque of a single vertical axis current energy turbine on the platform, thereby ensuring the stability of the device.

The utility model relates to a floating wave-current combined power generation device utilizing both wave energy and ocean current energy, comprising a wave energy absorption device floating on the sea surface, a vertical axis ocean current energy turbine submerged under the sea surface, and a tower-type combined power generation platform and cross mooring positioning device. The wave energy oscillating float absorbs the wave energy to generate heaving motion, and transmits the energy from the top of the combined power generation platform to the linear motor in the inner power generation room of the platform through the transmission rod to generate electricity. The ocean current energy vertical axis turbine absorbs the ocean current energy to generate rotational motion, and transmits the energy from the bottom of the combined power generation platform to the axial motor in the internal power generation room of the platform through the spokes and the main shaft to generate electricity. The two motors store energy in the battery to supply power to the load through the power conversion system. In the combined power generation platform, a cylindrical combined power generation chamber is connected to a wave energy float outside, and a combined power generation system is provided inside; a vertical axis ocean current energy turbine is installed in the middle of the cage-type disc-shaped tower body. The whole set of devices is positioned in the designated water area by using a tensioned cross-type combined mooring and positioning device at the lower part of the tower-type combined power generation platform. The floating wave-current combined power generation device proposed by the utility model is distributed axially symmetrically on the whole, has simple and compact structure, strong reliability, increases the total energy output per unit ocean space, and has high market application value.

The above descriptions are only preferred embodiments of the present utility model, and are not intended to limit the present utility model. For those skilled in the art, the present utility model may have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims (10)

1. a floating type wave and current combined power generation device, comprising a wave energy power generation device and an ocean current energy power generation device, it is characterized in that: also comprise a combined power generation room and a mooring positioning device; Described wave energy power generation device comprises a float and a linear motor; The ocean current energy power generation device includes an ocean current energy turbine and an axial motor; the linear motor and the axial motor are both arranged inside the combined power generation chamber; the float is integrally sleeved on the outside of the combined power generation chamber, and the float is connected to the combined power generation chamber. The internal linear motor is connected by a transmission rod; the ocean current energy turbine is installed under the combined power generation room, and the main shaft of the ocean current energy turbine passes through the bottom of the combined power generation room and is connected with the axial motor inside the combined power generation room; the combined power generation room A power integration device is arranged inside the chamber; the power input channels of the power integration device are respectively connected with the linear motor and the axial motor; the mooring positioning device is installed below the ocean current energy turbine. 2. A floating wave-current combined power generation device according to claim 1, characterized in that: the outer side of the combined power generation room is provided with a sliding rod, and the two ends of the sliding rod are provided with limiting devices; the float A chute is arranged on the upper part; the float is installed on the sliding rod on the outside of the combined power generation room through the chute. 3. A floating wave-current combined power generation device according to claim 1 or 2, characterized in that: the interior of the combined power generation chamber is sequentially divided into wave energy power generation cabins, centralized power storage cabins, and ocean current energy storage cabins through partitions. The power generation cabin and the ballast tank are four parts; the linear motor is installed in the wave energy power generation cabin; the axial motor is installed in the ocean current energy power generation cabin; the power integration device is installed in the centralized storage cabin. 4. A floating wave-current combined power generation device according to claim 1 or 2, characterized in that: it also comprises a tower body; the tower body comprises an upper deck and a lower deck, and the upper deck and the lower deck pass through between the upper deck and the lower deck. column connection; one end of the main shaft of the ocean current energy turbine is installed on the lower deck, and the other end passes through the upper deck and the bottom of the co-generating room and is connected to the axial motor inside the co-generating room. 5. A floating wave-current combined power generation device according to claim 3, characterized in that: it also comprises a tower body; the tower body comprises an upper deck and a lower deck, and the upper deck and the lower deck are connected by columns ; One end of the main shaft of the ocean current energy turbine is installed on the lower deck, and the other end passes through the upper deck and the bottom of the combined generating room and is connected with the axial motor inside the combined generating room. 6 . The floating wave-current combined power generation device according to claim 4 , wherein the mooring and positioning device is a tensioned cross-type mooring and positioning device; the tensioned and cross-type mooring and positioning device comprises an anchorage Chain, each group of anchor chains is provided with two tensioned and crossed anchor chain lines; the edge of the lower deck is provided with a fairlead; the upper end of each anchor chain line is installed on the fairlead on the edge of the lower deck At the hole, a submarine anchor is installed at the lower end. 7 . The floating wave-current combined power generation device according to claim 5 , wherein the mooring and positioning device is a tensioned cross-type mooring and positioning device; the tensioned and cross-type anchoring and positioning device comprises an anchorage Chain, each group of anchor chains is provided with two tensioned and crossed anchor chain lines; the edge of the lower deck is provided with a fairlead; the upper end of each anchor chain line is installed on the fairlead on the edge of the lower deck At the hole, a submarine anchor is installed at the lower end. 8. A floating wave-current combined power generation device according to claim 6, characterized in that: the combined power generation chamber has a cylindrical structure; The cylindrical structure of the hole; the upper deck and the lower deck of the tower body are both disc-shaped structures; the diameter of the upper deck is larger than the outer diameter of the float; the diameter of the lower deck is larger than the diameter of the upper deck. 9. A floating wave-current combined power generation device according to claim 7, characterized in that: the combined power generation chamber has a cylindrical structure; The cylindrical structure of the hole; the upper deck and the lower deck of the tower body are both disc-shaped structures; the diameter of the upper deck is larger than the outer diameter of the float; the diameter of the lower deck is larger than the diameter of the upper deck. 10. A floating wave-current combined power generation device according to claim 8 or 9, characterized in that: a tower is arranged between the upper deck and the bottom of the combined power generation room; the tower is hollow The upper ring of the tower is connected with the bottom of the co-generating room, the upper ring and the lower ring of the tower are connected by inclined beams, and the lower ring of the tower is connected with the upper deck of the current energy turbine ; The outer diameter of the lower ring of the tower is larger than the outer diameter of the upper ring of the tower.

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