Split type wave power generation device

Abstract

The invention discloses a split type wave power generation device and belongs to the field of new energy. The wave is directly divided into a plurality of sections in principle, the energy of each section of wave is independently collected by an energy collector, and mutual restraint of all the wave sections is avoided. Energy is transmitted in a gas form, and mechanical friction is reduced due to no complicated mechanical structure. Intermediate links are few, and the structure is simple and direct. Efficiency is high and cost is low. The limitation of the size of the energy collector and the size of waves is broken, so that the wave collector is suitable for collecting small waves, medium waves and large waves.

Description

Technical Field

[0001] This invention patent belongs to the field of wave energy utilization. Background Art

[0002] Wave energy in the ocean is very abundant, and there are various forms of human utilization of wave energy. All kinds of wave energy power generation devices inevitably bring cost and efficiency control. The wave energy actually applied mainly consists of: an energy harvesting unit, an energy transfer unit, and an energy conversion unit. However, each unit has cost and efficiency problems. Moreover, most of the wave energy power generation devices in the ocean are relatively large in size and require investments of millions or tens of millions, bringing risks and barriers to users and investors.

[0003] Therefore, the fundamental purpose of solving the problem is to reduce the cost of wave energy power generation devices and improve the wave energy conversion efficiency. At the same time, reducing the cost and miniaturizing the wave energy power generation device according to the energy level of ocean waves in the sea area where it is located is very attractive to the new energy power generation market. Summary of the Invention

[0004] The principle and characteristics are as follows: Aiming at reducing the cost of wave energy devices and improving the wave energy conversion efficiency, while meeting the requirements of cost reduction and miniaturization, this invention patent proposes an innovative idea and solution.

[0005] As long as there are waves on the water surface, there must be wave crests and troughs. The actual waves are not sine waves. For the convenience of analysis, sine waves are used as references in the illustrations for explanation. A certain point between the wave crest and the trough does not exist in isolation, but is mutually restricted at each point (such as Figure 1 ). This will cause the energy at the wave high point to cancel out the energy at the low point, resulting in the wave energy harvester being unable to obtain energy normally.

[0006] In principle, the idea of this segmented wave energy power generation device is novel. The wave is directly divided into several segments (such as Figure 2 ), and the high points and low points are separated as much as possible to break the mutual restraint between each position point from the wave high point to the low point. The energy of each segment of the wave is separately collected by the C1 energy harvester, avoiding the mutual restraint of each wave segment. Of course, the more segments are divided and the finer they are, the less the loss of wave energy, and the more the number of C1 energy harvesters. Therefore, the number of segments divided is determined according to the wave size and actual needs. After being collected by each C1 energy harvester, they are combined and sent to do work for power generation.

[0007] The undulation of the wave forms high pressure and negative pressure in each C1 energy harvester, respectively realizing the high-pressure air compression loop at the wave crest, where the high-pressure gas does work on the C9 turbine, and the negative-pressure air suction loop at the wave trough, where the negative pressure pumps air to assist the C9 turbine in doing work.

[0008] The energy transfer medium of this segmented wave energy power generation device is a sealed gas. Without complicated mechanical structures, mechanical friction is reduced. There are fewer intermediate links, which can reduce the energy loss of wave energy during collection and transmission. At the same time (such as Figure 2 ), the air compression at the wave crest and air intake at the wave trough jointly drive the C9 turbine to do work. Thus, the efficiency of the entire wave energy power generation device is improved.

[0009] This segmented wave energy power generation device has a simple and direct structure. Each monomer has no complex components. Most components can be realized with low-cost plastic pipes.

[0010] The technical solution is as follows (such as Figure 3 , Figure 4 ): The C1 energy collector has an opening facing downwards, confining the air inside the C1 energy collector. The undulation of the waves drives the air to perform air compression and intake actions. Therefore, it is divided into the wave crest air compression stage and the wave trough air intake stage. The ultimate goal is to form the largest high pressure and negative pressure difference at the input and output ends of the C9 turbine, which is beneficial for doing work.

[0011] Firstly, for the wave crest high-pressure air compression loop, the sealed gas is compressed by the waves in the C1 energy collector, sent through the C4 energy collecting and air compression connecting pipe to the intake part of the C3b gas check valve, passed through the middle partition of the C3c gas check valve and the outlet part of the C3a gas check valve, and then output to the C6 high-pressure tank through the D13 high-pressure tank connecting pipe. At this time, the combination of multiple waves in segments is realized. The combined compressed gas is sent to the C9 turbine to do work.

[0012] Then, for the wave trough negative-pressure air intake loop, the sealed gas is sucked by the waves in the C1 energy collector to form a negative pressure. Through the C2 energy collecting and air intake connecting pipe, the gas in the outlet part of the C3a gas check valve is sucked to form a negative pressure. Then, the gas in the middle partition of the C3c gas check valve and the intake part of the C3b gas check valve is successively sucked to form a negative pressure. Then it reaches the C5 low-pressure tank connected by the D14 low-pressure tank connecting pipe. At this time, the air pressure in the C5 low-pressure tank forms a negative pressure. Due to the effect of the wave trough, the air pressure is pulled to the lowest.

[0013] The composition of the gas check valve: The gas check valve has two structures.

[0014] The gas spherical one-way valve is used in this segmented wave energy generation device. Its structure consists of a C3a gas one-way valve air outlet part, a C3b gas one-way valve air inlet part, and a C3c gas one-way valve intermediate partition to jointly form two independent and separated gas one-way valves, respectively preventing the high-pressure gas from being sucked away during pushing and preventing the negative-pressure gas from being filled during pulling. The C3a gas one-way valve air outlet part has two left and right independently separated air chambers, each with an outlet at the front and the back. The C3b gas one-way valve air inlet part has two left and right independently separated air chambers, each with an inlet at the front and the back (such as Figure 7 , 8, 9, 10, 11).

[0015] Another structure of the gas one-way valve is composed of two separate gas one-way valves, one allowing only gas to enter the C1 energy harvesting device and the other allowing only gas to be extracted from the C1 energy harvesting device.

[0016] Adjustment of the horizontal position of the energy harvesting device: The C1 energy harvesting device seals air inside. It is necessary to adjust the horizontal line position between the wave crest and the wave trough (such as Figure 1 , the x-axis of 2). So as to do work with the maximum energy. The present invention uses the C11 floating body and the C12 counterweight to cooperate to ensure that at the wave crest, the wave does not exceed the top of the C1 energy harvesting device and water does not enter the C4 energy harvesting and air compression connecting pipe. At the wave trough, the wave is not lower than the bottom of the C1 energy harvesting device to prevent the leakage of the sealed gas.

[0017] The energy harvesting device is suitable for small, medium, and large waves: The amount of wave energy collected depends on the shape and size of the opening of the C1 energy harvesting device. The shape generally adopts a circular or square shape, and the size and cross-sectional area are small. As long as the shape and size of the opening of the C1 energy harvesting device are smaller than the wavelength of a wave, wave energy collection can be achieved. When the shape and size of the opening of the C1 energy harvesting device are completely within the upper half-wave wavelength or completely within the lower half-wave wavelength, the wave energy collection is optimal at this time. Therefore, as long as the size of the opening of the C1 energy harvesting device of this segmented wave energy generation device is small enough, that is, the more segments the wave is divided into, the wave energy collection of all types of waves from small waves to large waves can be achieved.

[0018] Flexible and diverse multiple combination forms: This segmented wave energy generation device uses the segmentation method to maximally break the energy harvesting failure caused by the mutual entanglement between the wave crest and the wave trough, so it is very suitable for various combination forms and a large number of combination arrangements. For example: Two segmented wave energy generation devices are arranged symmetrically in pairs (such as Figure 5 , Figure 6 ), which can achieve a low-cost small layout. The collection of small, medium, and large waves can be realized. If the segmented wave energy generation devices arranged symmetrically in pairs are arranged in a row, or in a "triangle" combination, or in a "field" combination, and connected end to end with each other, more wave energy can be collected. Description of the Drawings Figure 1 It is a schematic diagram of wave explanation in an ideal state Figure 2 It is a schematic diagram of wave segmentation processing Figure 3 It is a schematic diagram of the component structure of a segmented wave energy power generation device Figure 4 It is a schematic diagram of the other side of the component structure of a segmented wave energy power generation device Figure 5 It is a schematic diagram of the paired layout structure of two segmented wave energy power generation devices Figure 6 It is a schematic diagram of the other side of the paired layout structure of two segmented wave energy power generation devices Figure 7 It is a schematic diagram of the middle partition of the gas spherical one-way valve (that is Figure 2 C3c in Figure 8 It is a schematic diagram of the air outlet part of the gas spherical one-way valve (that is Figure 2 C3a in Figure 9 It is a schematic diagram of the air inlet part of the gas spherical one-way valve (that is Figure 2 C3b in Figure 10 It is a structural dissection schematic diagram of the middle partition, floating ball, air outlet part, and air inlet part of the gas spherical one-way valve Figure 11 It is a structural dissection schematic diagram of the other side of the middle partition, floating ball, air outlet part, and air inlet part of the gas spherical one-way valve.

Claims

1. In principle, the patent of the present invention divides the waves according to (Figure 2), combines the divided wave energy together, and then sends it to the C9 turbine to do work.

2. The patent of this invention realizes energy transfer by pushing and pulling a closed gas medium through undulating waves.

3. The patented split wave energy power generation device of the present invention comprises: C1 energy collector; C2 energy collector air intake connecting pipe; C3a gas one-way valve outlet; C3b gas one-way valve inlet; C3c gas one-way valve middle partition; C4 energy collector compressed air connecting pipe; C5 low-pressure box; C6 high-pressure box; C7 turbine low-pressure connecting piece; C8 turbine high-pressure connecting piece; C9 turbine; C10 generator; C11 float; C12 counterweight; D13 high-pressure box connecting pipe; D14 low-pressure box connecting pipe.

4. The split type wave energy power generation device according to claim 3, characterized in that: The wave is divided into n groups of individual energy-collecting parts. Each set of energy collection parts includes C1 energy collection device, C2 energy collection air suction connecting pipe, C4 energy collection air compression connecting pipe, C3a gas one-way valve outlet, C3b gas one-way valve inlet, C3c gas one-way valve middle partition, D13 high-pressure box connecting pipe, D14 low-pressure box connecting pipe.

5. The split type wave energy power generation device according to claim 3, characterized in that: The C1 energy pickup is a gas container that is open downward and sealed by water.

6. The split type wave energy power generation device according to claim 3, characterized in that: Each C1 energy pickup uses two gas check valves, one for high pressure gas and one for low pressure gas.

7. The split type wave energy power generation device according to claim 3, characterized in that: There are two types of gas check valves, the first of which is composed of a C3a gas check valve outlet, a C3b gas check valve inlet and a C3c gas check valve middle partition to form a two-way separated gas check valve. A one-way compression check valve and one-way suction check valve are realized for the C1 energy pickup.

8. The split type wave energy power generation device according to claim 3, characterized in that: There are two types of gas one-way valves, the second type of which consists of two identical independent gas one-way valves, which respectively enable the C1 energy collector to compress and inhale the enclosed gas.

9. The split type wave energy power generation device according to claim 3, characterized in that: The sealed gas is combined at the C6 high pressure box input port through the D13 high pressure box connecting pipe, and separated at the C5 low pressure box output port through the D14 low pressure box connecting pipe.

10. The split type wave energy power generation device according to claim 3, characterized in that: The C11 float and the C12 counterweight are used together to adjust the middle point of the C1 energy pickup to a horizontal position.

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