CN103835869A - Ship-shaped swing type wave power generation device - Google Patents

Abstract

The invention belongs to the field of new renewable energy technology and marine equipment, and in particular relates to a ship-shaped pendulum type wave energy generating device. It includes a ship-shaped floating main body, a pendulum plate, an anchor chain, a hydraulic cylinder, a main hydraulic cabin and a two-way generating water turbine. The ship-shaped floating main body is fixed on the seabed through the anchor chain connection; the power generating turbine and the hydraulic mechanism are arranged inside the floating main body. Its characteristics are: the ship-shaped floating body faces the direction of incoming waves, the waves drive the pendulum plate to reciprocate, and then drive the hydraulic device to work, and finally generate electricity through the two-way power generation turbine. The design of the invention can automatically adjust its orientation according to the direction of wave transmission, efficiently and stably convert wave energy into electric energy, is suitable for deep water areas, has high reliability, and is easy to install and move.

Description

A ship-shaped pendulum type wave energy generating device

technical field

The invention belongs to the field of novel renewable energy technology and marine equipment, in particular to a ship-shaped pendulum type wave energy generating device.

Background technique

With the global energy crisis and the intensification of the greenhouse effect, the development of marine renewable energy has been paid more and more attention. Among them, wave energy has attracted widespread attention due to its huge reserves, and a large number of wave energy devices in various forms have been developed. According to the location where the wave energy device is deployed, it can be divided into three categories: offshore, nearshore and onshore. Due to the characteristics of easy installation and maintenance and low construction cost, most of the designs that have been studied in the early stage and widely used are near-shore and coastal. However, the relatively low wave energy density in nearshore areas greatly limits the utilization of wave energy and the development of wave energy technology.

Relatively, the density of wave energy in deep water areas is high, and at the same time it does not occupy valuable land resources. In recent years, offshore wave energy devices in deep water areas have attracted more attention, and the representative one is located in Scotland. The "Sea Serpent" power generation device in the Agucadoura wave energy farm developed by the wave energy company Pelamis in Portugal. Generally, offshore devices are installed in deep water areas (water depth greater than 40 meters), which brings challenges to the installation and maintenance of wave energy devices. Due to the abundance of wind and wave resources in offshore areas and the large changes in time distribution, and even extreme weather such as typhoons, engineers have to focus on the stability and safety of offshore wave energy devices. While ensuring that the wave energy conversion device can adapt to different weather conditions, it is necessary to examine the survival strategy and survivability of the design under extreme weather conditions.

Contents of the invention

The technical problem to be solved by the present invention is: to overcome the deficiencies such as low energy density and poor safety in the deployment area of the above-mentioned existing wave energy technology, and provide a ship-shaped pendulum type wave energy power generation device, which can automatically adjust itself according to the direction of wave transmission It can efficiently convert wave energy into electrical energy, and is suitable for deep water areas to provide power for offshore facilities such as offshore oil production platforms and observation stations. At the same time, it has high reliability and is easy to install and move.

The technical solution adopted by the present invention to solve its technical problems is:

A ship-shaped pendulum type wave energy generating device comprises a ship-shaped floating main body, a pendulum plate, an anchor chain, a hydraulic cylinder, a main hydraulic cabin and a two-way generating water turbine. The ship-shaped floating main body is fixed on the seabed through the anchor chain connection; the power generating turbine and the hydraulic mechanism are arranged inside the floating main body. Its characteristics are: the ship-shaped floating body faces the direction of incoming waves, the waves drive the pendulum plate to reciprocate, and then drive the hydraulic device to work, and finally generate electricity through the two-way power generation turbine.

The ship-shaped pendulum type wave energy generating device is characterized in that: the ship-shaped floating body is an elliptical cylinder structure with a hollow interior.

The ship-shaped pendulum type wave energy generating device is characterized in that: the ship-shaped floating body is fixed on the seabed by a single anchor chain.

The ship-shaped pendulum-type wave energy generating device is characterized in that: there are 4 sets of wobble plates and hydraulic cylinders (2 front wobble plates and 2 rear wobble plates), which are symmetrically distributed and hinged on both sides of the ship-shaped floating body.

The ship-shaped pendulum type wave energy generating device is characterized in that: the distance between the front swing plate and the rear swing plate should be half of the characteristic wavelength of the sea area where the device is deployed.

The ship-shaped pendulum type wave energy generating device is characterized in that each hydraulic cylinder is equipped with four baffles.

The ship-shaped pendulum type wave energy generating device is characterized in that: a main hydraulic tank is installed inside the ship-shaped floating body and connected to 4 hydraulic cylinders.

The ship-shaped pendulum type wave energy generating device is characterized in that a two-way generating water turbine is installed in the middle of the main hydraulic compartment.

The ship-shaped floating body is fixed to the seabed with a single anchor chain, and it can face any direction on the sea level. The elliptical shape of the floating body and the layout of the front and rear swing plates make the hydrodynamic resistance of the overall power generation device the least when facing the direction of incoming waves. Therefore, when waves act on the ship-shaped floating power generation device, the device will Automatically adjusts to face the direction of incoming waves. At the same time, the small hydrodynamic resistance also ensures that when the wind and wave conditions are relatively severe, the wave force received by the overall power generation device is relatively small, which ensures the safety of the device.

The front swing plate and the rear swing plate are hingedly connected with the floating main body and have only one rotational degree of freedom of movement. When the waves pass, the wave crests act on the two front sway plates, and the rotation of the sway plates drives the piston in the hydraulic cylinder to push the hydraulic oil in the main hydraulic chamber to flow backward through the two-way power generation turbine, and the water turbine generates power; at the same time, the wave trough passes through the two There is a rear swing plate, and the rear swing plate rotates away from the main body of the ship, driving the piston to move outward, thereby promoting the backward movement of the hydraulic oil in the main hydraulic tank. When the trough acts on the two front swing plates, the wave crest is located at the rear swing plate. The process is opposite to the above process. The hydraulic oil in the main hydraulic chamber flows forward through the two-way generating turbine, and the turbine generates electricity.

The beneficial effects of the present invention are:

The invention is suitable for deep water areas with rich wave energy resources. It adopts an oval ship-shaped floating body and a multi-swing plate design, and can automatically adjust the orientation of the device according to the direction of incoming waves; Both the power generation system and the power generation system are installed inside the main body of the ship, with high safety; this design uses a floating platform moored by a single anchor chain, which is simple in form and easy to install and transfer.

Description of drawings

Fig. 1 is the installation diagram of the present invention.

Fig. 2 is a schematic diagram of the overall structure of the present invention.

Fig. 3 is a schematic diagram of the combination of various components of the present invention.

Fig. 4 is a structural schematic diagram of a combination of a wobble plate and a hydraulic cylinder.

In the figure, 1-boat-shaped floating body, 2-rear swing plate, 3-anchor chain, 4-front swing plate, 5-hydraulic cylinder, 6-main hydraulic chamber, 7-two-way generating turbine, 8-hinge point, 9- Connecting rod, 10-hinge point, 11-connecting rod, 12-block plate, 13-piston, 14-hinge point.

Detailed ways

The present invention will be described in detail below in conjunction with the accompanying drawings and embodiments.

Example 1:

As shown in Figure 1, the ship-shaped floating body 1 is fixed by the anchor chain 3, and the other end of the anchor chain 3 is fixed on the seabed; the ship-shaped floating body 1 faces the incoming wave direction, and the front swing plate 4 and the rear swing plate 2 are respectively installed on the floating body 1 front and rear; the top surface of the floating main body 1 is close to the sea level.

As shown in FIG. 2 , the ship-shaped floating body 1 is equipped with two front swing plates 4 and two rear swing plates 2 , which are symmetrically distributed on both sides of the hull, and each swing plate is connected to a hydraulic cylinder 5 .

As shown in FIG. 3 , the four hydraulic cylinders 5 are all connected to the main hydraulic cabin 6 . The hydraulic cabin 6 is located inside the floating body 1 , and a two-way generating turbine 7 is installed in the middle of the hydraulic cabin 6 .

As shown in Figure 4, the pendulum plates 2 and 4 are connected to the ship-shaped floating body 1 through a hinge point 14, and the pendulum plate is connected to the piston 13 in the hydraulic cylinder 5 through two connecting rods 9 and 11 and two hinge points 8 and 10. On both sides of the piston, four blocking plates 12 are distributed.

The working principle of this embodiment:

In actual use, the boat-shaped floating body 1 is in a floating state, and its upper surface is slightly higher than the water level. When the wave is transmitted to the floating body, if the floating body is oblique to the direction of the incoming wave, the uneven wave force on the floating body will automatically adjust it to face the direction of the incoming wave to achieve a balanced state. When the wave is transmitted to the ship-shaped pendulum type wave energy power generation device, the wave crest first acts on the two front swing plates 4, thereby driving the piston 13 in the hydraulic cylinder 5 to push the hydraulic oil in the main hydraulic chamber 6 to flow backward through the two-way power generation turbine 7, The water turbine generates electricity; at the same time, the trough is located at the rear swing plate 2, which is half a wavelength away from the front swing plate 4, and the rear swing plate rotates in a direction away from the hydraulic cylinder 5, driving the piston 13 to move outward and further promoting the main hydraulic chamber 6. Backward movement of the hydraulic oil. When the trough acts on the two front swing plates 4, the peak is located at the rear swing plate 2, the movement process of the piston 13 is just opposite to the above process, the hydraulic oil in the main hydraulic chamber 6 flows forward through the two-way generating turbine 7, and the turbine generates electricity . The four baffles 12 installed in the hydraulic cylinder 5 limit the range of motion of the piston 13, thereby ensuring that the rotation range of the pendulum plate will not be too large, will not significantly change the hydrodynamic resistance characteristics of the overall ship-shaped device, and ensure its energy Consistency of device orientation during transitions.

Although the preferred embodiments of the present invention have been described above, the present invention is not limited to the above specific embodiments, which are only illustrative and not restrictive.

Claims (8)

1. A ship-shaped pendulum type wave energy power generation device, including a ship-shaped floating body, a pendulum plate, an anchor chain, a hydraulic cylinder, a main hydraulic cabin, and a two-way power generation turbine; the ship-shaped floating body is fixed on the seabed by a anchor chain connected with a grasping anchor; the power generation turbine Both the hydraulic mechanism and the hydraulic mechanism are arranged inside the floating main body. The characteristic is that the ship-shaped floating main body faces the direction of the incoming wave, and the wave drives the pendulum plate to reciprocate, which in turn drives the hydraulic device to work, and finally generates electricity through the two-way power generation turbine. 2. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: the ship-shaped floating main body is an elliptical cylindrical structure with a hollow interior. 3. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: the ship-shaped floating body is fixed to the seabed by a single anchor chain. 4. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: there are 4 sets of wobble plates and hydraulic cylinders (2 front wobble plates and 2 rear wobble plates), which are symmetrically distributed and hinged to the ship-shaped floating sides of the subject. 5. The ship-shaped pendulum type wave energy generating device according to claim 1, wherein the distance between the front swing plate and the rear swing plate should be half of the characteristic wavelength of the sea area where the device is deployed. 6. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: each hydraulic cylinder is equipped with four baffles. 7. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: a main hydraulic tank is installed inside the ship-shaped floating body and connected to four hydraulic cylinders. 8. The ship-shaped pendulum type wave energy generating device according to claim 1, characterized in that: a two-way generating water turbine is installed in the middle of the main hydraulic chamber.

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