This invention involves a power generating device with wave energy, particularly a high-efficiency and low-cost wave amplitude power generating ship with very strong capacity resisting wind and wave.
The wave energy power generating devices in the current market have the following problems in the actual application: to stabilize the platform, it has to be fixed with the pile or by fabricating a floating body being multiple times more than the wavelength, for example, a turbine wave power generating device under the patent number of ZL201220106154.5 announced on Oct. 3, 2012, which is characterized that the power generating device can only use the original wave height, and capture the wave energy of 0-1 time wave height, instead of the wave energy of 1-2 times of the wave height, that is, the wave cannot be magnified for use.
At present, such application does not have obvious effect in case of small wave and does not have high power generation efficiency. While the average wave height in the coastal area of China is only 1 m. So its economic value is limited.
The development trend for wave energy power generation will be: development of high-efficiency wave amplitude power generating device with very strong capacity resisting wind and wave. Only high-efficiency wave amplitude power generating device with very strong capacity resisting wind and wave can make full use of the wave energy, adapt to the harsh marine conditions, and guarantee that the power generating device will not be destroyed by heavy wind and wave; it is characterized by simple design, so it is possible to ensure low cost and embody the commercial use value.
This invention aims to provide a high-efficiency wave power generating device with very low cost and very strong capacity resisting wind and wave, which shall still work for the small wave. The offshore platform is fixed with the piles, or the floating body being many times more than that of the wavelength is stable for the wave, and the water turbine installed on the platform or floating body can only use the wave height of 0-1 time, which results in low efficiency. This invention has resolved this lingering problem.
The working principle of this invention:
Two persons carry an object, whose distance to the ground on the continuous equal wave path will receive the upward and downward displacement of two times of the wave height. As we know, since two persons carry an object, the object in the middle will move with two persons upward or downward; if the distance of two persons is equal to the continuous wave of the ground surface, the intermediate object will go uphill and downhill with two persons; when two persons stand in the wave valley, the distance of the intermediate object to the wave peak is one wave height shorter than that of the walk on the flat surface. When two persons stand in wave peak, the distance of the intermediate object to the wave peak is one wave height bigger than that of the walk on the flat surface. That is, the distance change from the intermediate object to the ground is two times of wave height, instead of one time.
Similarly, the support 2 is used to connect the floating bodies 120 on both ends, the length 102 of every floating body 120 is much smaller than the wavelength 010, the distance 09 between two floating bodies is equivalent to the wavelength 010, as shown in
As shown in
As shown in
The rotation of the water turbine clockwise and counterclockwise cannot drive the work of the motor 304, when the moment of the water turbine 301 is transmitted through the axis 302 to the axial direction adjuster 303, it will form the unidirectional axis motion at uniform speed, thus driving the generator 304 to act and generate power.
To stably obtain the maximum wave energy, it is required to constantly adjust the distance 09 of two floating points 101, so that this distance will be close to the average wavelength 010 in constant change in the local sea area, thus the wave height in the middle position 04 can be close to 2 times. There are two methods to adjust the distance 09 of two floating points 101: first, manual adjustment; second, automatic adjustment.
This invention has the following beneficial effects,
Further explanation will be given on this invention in combination with the attached drawings and the implementation examples below.
As shown in
As shown in
The said floating body 121 may also be used with the stem and stern fixing mode, as shown in
The said support system 2 may be metallic frame, as shown in
As shown in
As shown in
Motorized ship direction adjustment: when the direction of the ship is consistent with that of the wave, probes 901 in the same position installed on both sides of the support 2 will sense the pressure of wave at the same time; when the direction of the ship is inconsistent with that of the wave, probes 901 on both sides of the support 2 will sense the pressure of wave not at the same time, when the computer 902 will automatically send the instruction to start propeller 5 in the bottom of the ship so that the ship makes the horizontal rotation movement, thus the direction of the ship is adjusted to be consistent with that of the wave; when the direction is consistent, the rotation of propeller 5 will be stopped. It is adjusted every 1-10 minutes, thus capable of constantly automatic adjustment to be consistent with the wave direction.
The said propeller 5 is of suspension type, capable of 360-degree rotation around the suspension shaft; so the propeller 5 cannot only be used as the motive for forward movement of the ship, but also be used as the direction rudder of the ship.
As shown in
As shown in
In case that the wave detector system 9 is not installed, manual clicking of the pushbutton can also change the positive and negative rotating directions of the motor 111, This involves manual control of the distance to the floating point 101, applicable for the small-sized power generating devices.
In the middle position 04 of wave amplitude power generating ship, there shall be two times of the wave height. The ship direction shall be consistent or nearly consistent with the wave direction, so that the floating bodies 120 on both ends can be in the peak as shown in 05 and in the valley as shown in 06, for which the ship direction shall be adjusted constantly.
Thus, the propeller 5 and computer 902 installed in the bottom of the ship make the power generating ship float in the designated sea area and make the positive direction of the hull is always in a straight line with the wave direction under the assistance of the satellite navigation, guaranteeing that the wave in the middle of the hull achieves the maximum amplitude.
As shown in
As shown in
The said support system 2 is the metallic frame, as shown in
As shown in
When the floating body 120 is in the valley, as in the situation of the wave 05, the middle position 04 of the support 2 is in the peak, then power generation floating body 701 changes from the valley to peak, to drive the rise of the support 2, while the water level in the middle position 04 of the support 2 changes from peak to valley and the power generation floating body 701 also changes from the peak to valley with the wave. But the gear rack and axial motion converter 712 and generator 713 installed on the supporting frame 705 rise with the support 2, thus the gear rack 711 will produce the relative motion with the gear rack and axial motion converter 712, drive the rotation of the output shaft, thus driving the rotation of the generator 713 for power generation; the gear rack and axial motion converter 712 can change the linear motion of the gear rack 711 to the unidirectional rotation motion of the output shaft, meeting the need of the generator 713, thus capable of generating power; when the power generation floating body 701 changes to valley and is in the position of power generation floating body 702, then 703 represents its acting process; now the floating body 120 is in the peak, as the case in the situation of wave 06.
Wave is in constant change. The floating body 120 changes from peak to valley, as in the situation of wave 06, to drive the dropping of the support 2, while the water level in the middle position 04 of the support 2 changes form valley to peak. The power generation floating body 701 installed in the middle position 04 also changes from the valley to peak, while the gear rack and axial motion converter 712 and generator 713 installed on the supporting frame 705 fall with the support 2, thus gear rack 711 and gear rack and axial motion converter 712 will produce the relative motion, to drive the rotation of the output shaft, thus driving the rotating power generation by the generator 713. When power generation floating body 701 changes from the valley to peak, it is in the position of power generation floating body 701. At this moment, the power generation floating body 701 finishes one wave period, power generation floating body 701 repeats such circulation like this, and generator 713 can constantly generate power.
To increase the output power of the floating force, it is required to increase the floating force of the power generation floating body 701, and the projection area of the upper part of the water level of the floating body shall be 0.3-50 times bigger than the projection area of the lower part of the water level. When the power generation floating body 701 (702 position) changes from the valley to peak, the water level at the floating body will rise due to the resistance of the generator; the bigger the area of the part of the floating body being submerged, the bigger the floating force that can be provided within shorter time, thus overcoming the resistance of the generator in a timely manner, and making the floating body act; therefore, only by this means, the acting of the floating body will not significantly lag behind the change of wave, thus achieving high efficiency.
To increase the output power of the gravity, it is required to increase the gravity of the power generation floating body 701 in the air. The draught of power generation floating body 701 shall be more than 0.5-50 times of the short axis or short-side length of the part below the water level. When the power generation floating body 701 changes from the peak to valley, the water level at the floating body will drop due to the pulling force (resistance) of the generator; the larger the weight of the floating body exposed in the air, the bigger the acting gravity that can be provided within shorter time, thus capable of overcoming the pulling force (resistance) of the generator in a timely manner, and making the power generation floating body 701 act.
The said gear rack 711 may be replaced by the hydraulic lever, the gear rack and axial motion converter 712 may be replaced by the hydraulic motor; when power generation floating body 701 makes the up-and-down motion with the wave, it will drive one end of the hydraulic lever to make the reactive motion, thus generating the varying hydraulic pressure; while the varying hydraulic pressure will drive the hydraulic motor, then drive the rotation of generator 713 for power generation.
One or 2-200 floating body power generation systems 7 may be installed on the support system 2, with two systems shown in
As shown in
Motorized ship direction adjustment: when the direction of the ship is consistent with that of the wave, probes 901 in the same position installed on both sides of the support 2 will sense the pressure of wave at the same time; when the direction of the ship is inconsistent with that of the wave, probes 901 on both sides of the support 2 will sense the pressure of wave not at the same time, when the computer 902 will automatically send the instruction to start propeller 5 in the bottom of the ship so that the ship makes the horizontal rotation movement, thus the direction of the ship is adjusted to be consistent with that of the wave; when the direction is consistent, the rotation of propeller 5 will be stopped. It is adjusted every 1-10 minutes, thus capable of constantly automatic adjustment to be consistent with the wave direction.
The said propeller 5 is of suspension type, capable of 360-degree rotation around the suspension shaft; so the propeller 5 cannot only be used as the motive for forward movement of the ship, but also be used as the direction rudder of the ship.
As shown in
As shown in
In case that the wave detector system 9 is not installed, manual clicking of the pushbutton can also change the positive and negative rotating directions of the motor 111, This involves manual control of the distance to the floating point 101, applicable for the small-sized power generating devices.
In the middle position 04 of wave amplitude power generating ship, there shall be two times of the wave height. The ship direction shall be consistent or nearly consistent with the wave direction, so that the floating bodies 120 on both ends can be in the peak as shown in 05 and in the valley as shown in 06, for which the ship direction shall be adjusted constantly.
Thus, the propeller 5 and computer 902 installed in the bottom of the ship make the power generating ship float in the designated sea area and make the positive direction of the hull is always in a straight line with the wave direction under the assistance of the satellite navigation, guaranteeing that the wave in the middle of the hull achieves the maximum amplitude.
As shown in
As shown in
The said support system 2 is metallic frame, as shown in
As shown in
When the floating body 120 is in the valley, as in the situation of the wave 05, the middle position 04 of the support 2 is in the peak, then the center of gravity of the duck head 802 rises to the highest point, to drive the gear rack 811 to rise to the highest point; wave is in constant change, and the floating body 120 changes from the valley to peak, to drive the rise of the support 2, while the water level in the middle position 04 of the support 2 changes from peak to valley and the center of gravity of the duck head 802 also changes from the peak to valley with the wave. But the gear rack and axial motion converter 812 and generator 813 installed on the supporting frame 805 rise with the support 2, thus the gear rack 811 will produce the relative motion with the gear rack and axial motion converter 812, drive the rotation of the output shaft, thus driving the rotation of the generator 713 for power generation; the gear rack and axial motion converter 812 can change the linear motion of the gear rack 811 to the unidirectional rotation motion of the output shaft, meeting the need of the generator 813, thus capable of generating power; when the center of gravity of the duck head 802 changes to valley and is in the position of center of gravity of the duck head 803, then 809 represents its acting process; now the floating body 120 is in the peak, as the case in the situation of wave 06.
Wave is in constant change. The floating body 120 changes from peak to valley, as in the situation of wave 06, to drive the dropping of the support 2, while the water level in the middle position 04 of the support 2 changes form valley to peak. The center of gravity of the duck head 803 installed near the middle position 04 also changes from the valley to peak, while the gear rack and axial motion converter 812 and generator 813 installed on the supporting frame 805 fall with the support 2, thus gear rack 811 and gear rack and axial motion converter 812 will produce the relative motion, to drive the rotation of the output shaft, thus driving the rotating power generation by the generator 813. When center of gravity of the duck head 803 changes from the valley to peak, it is in the position of center of gravity of the duck head 803. At this moment, the center of gravity of the duck head 803 finishes one wave period; center of gravity of the duck head 803 repeats such circulation like this, and generator 813 can constantly generate power.
To increase the output power of the duck body, the duck body is a seesaw unit with the supporting shaft 804 as the centerline, consisting of front duck body 801 and rear duck body 806. The duck body is filled with water as the flowing weight, and water can flow between front duck body 801 and rear duck body 806. When the center of gravity of the duck head 802 is in the peak, water will suddenly flow to rear duck body 806, thus reducing the weight at the center of gravity of the duck head 802, so that the duck head 802 obtains maximum floating force for acting. Since water is in the other side 806 of the seesaw, it will increase the weight of the rear duck body 806 and make it drop; according to the lever principle, the center of gravity of the duck head 802 will rise, thus increasing the acting process.
When the center of gravity of the duck head 803 is situated in the valley, water will suddenly flow to the front duck body 801, to increase the weight at the center of gravity of the duck head 803, and increase the acting gravity of the floating body; at this moment, the center of gravity of the duck head 803 will also drop, thus increasing the acting process of the gravity.
One or 2-200 duck-type power generation systems 8 may be installed on the support system 2, with two systems shown in
As shown in
Motorized ship direction adjustment: when the direction of the ship is consistent with that of the wave, probes 901 in the same position installed on both sides of the support 2 will sense the pressure of wave at the same time; when the direction of the ship is inconsistent with that of the wave, probes 901 on both sides of the support 2 will sense the pressure of wave not at the same time, when the computer 902 will automatically send the instruction to start propeller 5 in the bottom of the ship so that the ship makes the horizontal rotation movement, thus the direction of the ship is adjusted to be consistent with that of the wave; when the direction is consistent, the rotation of propeller 5 will be stopped. It is adjusted every 1-10 minutes, thus capable of constantly automatic adjustment to be consistent with the wave direction.
The said propeller 5 is of suspension type, capable of 360-degree rotation around the suspension shaft; so the propeller 5 cannot only be used as the motive for forward movement of the ship, but also be used as the direction rudder of the ship.
As shown in
As shown in
In case that the wave detector system 9 is not installed, manual clicking of the pushbutton can also change the positive and negative rotating directions of the motor 111, This involves manual control of the distance to the floating point 101, applicable for the small-sized power generating devices.
In the middle position 04 of wave amplitude power generating ship, there shall be two times of the wave height. The ship direction shall be consistent or nearly consistent with the wave direction, so that the floating bodies 120 on both ends can be in the peak as shown in 05 and in the valley as shown in 06, for which the ship direction shall be adjusted constantly.
Thus, the propeller 5 and computer 902 installed in the bottom of the ship make the power generating ship float in the designated sea area and make the positive direction of the hull is always in a straight line with the wave direction under the assistance of the satellite navigation, guaranteeing that the wave in the middle of the hull achieves the maximum amplitude.
This invention is not limited to the abovementioned implementation examples or means. Once the distance 09 of two floating points 101 is as close as possible to the wavelength 010, it can make the ship obtain the acting with 1-2 times of wave height in the middle position 04 of the hull, thus falling into the protection scope of this invention. The distance to the floating point 101 is fixed or adjustable, also falling into the protection scope of this invention.
The above gives the detailed explanation of the priority implementation means and examples in combination with the attached drawings in this invention. But this invention is not limited to the abovementioned implementation means and examples, and the technical personnel in this field can make various changes within the scope of their knowledge under the premise of not deviating from the contemplation of this invention.
Number | Date | Country | Kind |
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201420484161.8 | Aug 2014 | CN | national |
Filing Document | Filing Date | Country | Kind |
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PCT/CN2015/000588 | 8/14/2015 | WO | 00 |