CN105179148A - Vibrating floater type wave power generation device - Google Patents

Abstract

The invention provides a vibrating floater type wave power generation device. The vibrating floater type wave power generation device comprises power generation units. Each power generation device comprises a raft body, an air cylinder, a piston and a piston rod, wherein the upper end of the piston rod is hinged to the lower portion of the raft body, and the lower end of the piston rod stretches into the air cylinder and is connected with the piston rod; an air outlet and an air inlet are formed in the inner wall of the air cylinder, and a gas pipeline is installed between the air outlet and the air inlet; an air storage bag, a throttling valve and a gas turbine are sequentially installed on the gas pipeline in the direction from the air outlet to the air inlet; the gas turbine is connected with a power generator; an air outlet valve is installed at the air outlet, and an air inlet valve is installed at the air inlet; the corresponding first piston rod, the corresponding second piston rod, the corresponding third piston rod and the corresponding fourth piston rod are hinged to the outer wall of the left side of the raft body, and a first hydraulic cylinder, a second hydraulic cylinder, a third hydraulic cylinder and a fourth hydraulic cylinder are fixed to the outer wall of the right side of the raft body; every two adjacent power generation units are connected through the piston rod of the power generation unit on one side and the hydraulic cylinder of the power generation unit on the other side. According to the vibrating floater type wave power generation device, the energy generated through relative rotation between the raft bodies and the energy generated through upward and downward floating of the raft bodies along with waves are absorbed at the same time, and energy absorption rate of the device is increased.

Description

Oscillating float type wave energy generating device

technical field

The invention relates to a power generating device, specifically a wave energy generating device.

Background technique

In the context of the world's energy shortage, it is imperative to develop new energy sources. As a renewable and clean energy source, wave energy has a very broad prospect for development. The main function of the wave energy power generation device is to collect wave energy and convert it into electrical energy for use by navigation marks or shore users. Waves exist all the time and are inexhaustible. The diversification of wave energy collection methods is of great significance for future research on more effective wave energy power generation devices, and can alleviate the world's turmoil to a certain extent. energy crisis.

Contents of the invention

The object of the present invention is to provide an oscillating buoy type wave energy generating device that simultaneously absorbs the relative rotation between raft bodies and the energy of floating up and down with waves to generate electricity.

The purpose of the present invention is achieved like this:

The oscillating float type wave energy power generation device of the present invention is characterized in that it includes a power generation unit, the power generation unit includes a raft body, a cylinder, a piston, and a piston rod, the upper end of the piston rod is hinged under the raft body, and the lower end of the piston rod extends into the cylinder The inner wall of the cylinder is connected with the piston rod. An air outlet and an air inlet are arranged on the inner wall of the cylinder. A gas pipeline is installed between the air outlet and the air inlet. On the gas pipeline, an air storage bag, a throttle valve, and a gas The turbine and the gas turbine are connected to the generator, the gas outlet valve is installed at the gas outlet, and the gas inlet valve is installed at the gas inlet. The first-fourth piston rods are hinged on the left outer wall of the raft body, and the fourth One-fourth hydraulic cylinder; the adjacent power generation units are connected by the piston rod of the power generation unit on one side and the hydraulic cylinder of the power generation unit on the other side, specifically: the first-fourth of the power generation unit on the left The hydraulic cylinders respectively cooperate with the first-fourth piston rods of the power generation unit on the right to form the first-fourth hydraulic units.

The present invention may also include:

1. The arrangement of the first-fourth piston rods on the left outer wall of the raft body is as follows: the first piston rod and the second piston rod are respectively located at the upper and lower ends of the left outer wall of the raft body, the third piston rod and the fourth piston rod They are respectively located at the left and right ends of the left outer wall of the raft body; the arrangement of the first-fourth hydraulic cylinders on the right outer wall of the raft body is as follows: the first hydraulic cylinder and the second hydraulic cylinder are respectively located at the upper and lower ends of the right outer wall of the raft body , the third hydraulic cylinder and the fourth hydraulic cylinder are respectively located at the left and right ends of the right outer wall of the raft body.

The advantage of the present invention is that: the present invention simultaneously absorbs the energy of the relative rotation between the raft bodies and the energy of floating up and down with the waves, which improves the energy absorption rate of the device, thereby improving the total energy output and power generation efficiency of the device. The device has the characteristics of simple structure, easy control, and high work efficiency, and has good application prospects.

Description of drawings

Fig. 1 is a structural representation of the present invention;

Figure 2a is a schematic diagram of the layout of the hydraulic cylinder device, and Figure 2b is a schematic diagram of the layout of the cylinder;

Figure 3a is a schematic structural view of the pneumatic device, and Figure 3b is a cross-sectional view of the starting device;

Fig. 4a is a schematic diagram of the structure of the raft body, and Fig. 4b is a cross-sectional view of the raft body.

Detailed ways

The present invention is described in more detail below in conjunction with accompanying drawing example:

1 to 4, the oscillating float type wave energy generating device of the present invention is composed of raft bodies 1, 18, cylinder 3, air storage bag 7, check valve, throttle valve 8 and pipelines. First, each raft body 1, The hydraulic pistons of the hydraulic device 12 between 18 are divided into two groups, one group collects the energy of the rotation of the rafts 1, 18 in the horizontal direction, and the other group collects the energy of the rotation between the rafts 1, 18 in the vertical direction. Among them, all the hydraulic cylinders 14, 15, 16, 17 are uniformly fixed on one raft body 1, and all the piston rods are respectively hinged on the other raft body 18 through their respective articulated joints 19, so as to realize the flexible operation of the hydraulic device 12 . The oscillating float device connected under each raft body 1, 18 adopts a pneumatic power generation device. The lower end of the raft body 1, 18 is hinged to the piston rod 2 through the hinged joint 13. When the raft body 1, 18 floats up and down, it drives the piston 4 to move, expand or compress For gas, an air storage bag 7 is connected to the port 6 of the air outlet, which can convert the unstable air flow into a stable air flow, thereby realizing the conversion of energy from unstable to stable. After the air storage bag 7, a throttle valve 8 is connected to control the air flow , and finally generate electricity through the gas turbine 9.

The air outlet 6 of the cylinder 3 below the raft body 1,18 is connected to the air inlet 11, and the air flow is controlled with the valves 5,10.

The two groups of liquid cylinders between the raft body 1 and the raft body 18 are symmetrical to each other, so that the raft body is not subjected to unnecessary external force.

The traditional raft device only absorbs the energy during the angular displacement of the raft body produced by waves, and does not see the raft device as moving up and down. However, in actual situations, the raft device has the movement of floating up and down. Therefore, from the perspective of improving the power generation efficiency of the raft device, the device utilizes the energy of the raft body fluctuating up and down with the waves, and regards it as a plurality of oscillating floats. , and connect the pneumatic power generating device to convert the kinetic energy of the raft body floating up and down into electric energy. At the same time, the angular displacement between the rafts themselves is absorbed and converted into electrical energy by the hydraulic conversion device installed between each raft. There is no crossover between the two conversion systems and they work independently. The structure of the device is relatively simple, the power generation efficiency is high, and the utility model has broad application value.

Because the construction cost of the oscillating float type wave energy generation device is low, the structure is simple, the construction is simple, and the efficiency of absorbing wave energy is high, so the combination of the oscillating float type and the raft type can improve the efficiency of wave energy absorption and transformation, and It is easy to install, strong in engineering, and has great utilization value.

The wave energy generating device of the present invention is composed of a plurality of rafts, pneumatic devices, hydraulic devices and pipelines. The cylinder 3 is arranged directly below the raft body 1, 18, the raft body 1, 18 floats on the sea surface, and the pneumatic device is immersed in the sea water. Each hydraulic device 12 is composed of four hydraulic cylinders, arranged on the side of each raft body 1, 18, and symmetrical up and down, left and right.

1) The pneumatic device arranged under the raft body 1, 18 is composed of a cylinder 3 and a pipeline. The piston rod 2 of the pneumatic device is hinged under the raft body 1, 18. With the movement of the raft body 1, 18, the piston rod 2 moves up and down, thereby squeezing or expanding the gas in the cylinder 3, thereby driving the gas turbine 9 to rotate , to achieve power generation.

2) The hydraulic device 12 between the raft bodies 1 and 18 is composed of four hydraulic cylinders 14, 15, 16 and 17, which are respectively symmetrical up and down, left and right, as shown in FIG. 2 . When the raft bodies 1, 18 swing with the waves, an angular displacement occurs between the two raft bodies 1, 18. Utilizing the continuous change of its angular displacement, the contraction motion of the hydraulic device 12 is used to absorb energy, thereby generating electricity.

3) The two power generation systems operate independently without interfering with each other.

Combining Figure 1 and Figure 2, the control principle of the wave power generation device is as follows:

For the pneumatic power generation device that the raft body 1, 18 is lowered, when the piston rod 2 moves downward, the gas in the cylinder 3 is squeezed, the valve 5 at the gas outlet 6 is opened, and the valve 10 at the air inlet 11 is closed, so that The gas flows out from the gas outlet 6, enters the air storage bag 7, and then enters the throttle valve 8 to control the gas flow rate and stability, and then enters the gas turbine 9 to rotate the gas wheel and drive the generator to generate electricity. When the piston rod 2 moves upward, the valve 10 at the air inlet 11 is opened, and the valve 5 at the air outlet 6 is closed, so that the gas passes through the air inlet 11 from the pipeline, and when it passes through the gas wheel 9, it rotates to drive Generators generate electricity. So it goes round and round and round and round;

For the hydraulic device 12 between the rafts 1 and 18, in the horizontal direction, if the hydraulic cylinder 14 is compressed, the hydraulic cylinder 17 will expand. Similarly, in the vertical direction, if the hydraulic cylinder 15 is compressed, the hydraulic cylinder 16 will expand. Therefore, When a reciprocating angular displacement is generated between the rafts 1, 18, the liquid cylinder between them is also constantly doing stretching motion, thereby realizing power generation.

The device simultaneously absorbs the energy of the relative rotation between the rafts and the energy of floating up and down with the waves, which improves the energy absorption rate of the device, thereby improving the total energy output and power generation efficiency of the device. The device has the characteristics of simple structure, easy control, and high work efficiency, and has good application prospects.

Claims (2)

1. The oscillating float type wave energy power generation device is characterized in that: it includes a power generation unit, and the power generation unit includes a raft body, a cylinder, a piston, and a piston rod. The upper end of the piston rod is hinged under the raft body, and the lower end of the piston rod extends into the cylinder. The inner wall of the cylinder is connected with the piston rod. An air outlet and an air inlet are arranged on the inner wall of the cylinder. A gas pipeline is installed between the air outlet and the air inlet. On the gas pipeline, an air storage bag, a throttle valve, and a gas The turbine and the gas turbine are connected to the generator, the gas outlet valve is installed at the gas outlet, and the gas inlet valve is installed at the gas inlet. The first-fourth piston rods are hinged on the left outer wall of the raft body, and the fourth One-fourth hydraulic cylinder; the adjacent power generation units are connected by the piston rod of the power generation unit on one side and the hydraulic cylinder of the power generation unit on the other side, specifically: the first-fourth of the power generation unit on the left The hydraulic cylinders respectively cooperate with the first-fourth piston rods of the power generation unit on the right to form the first-fourth hydraulic units. 2. The oscillating buoy type wave energy generating device according to claim 1, characterized in that: the arrangement of the first to fourth piston rods on the left outer wall of the raft body is as follows: the first piston rod and the second piston rod are respectively located at The upper and lower ends of the left outer wall of the raft body, the third piston rod and the fourth piston rod are respectively located at the left and right ends of the left outer wall of the raft body; the arrangement of the first-fourth hydraulic cylinders on the right outer wall of the raft body is as follows: The first hydraulic cylinder and the second hydraulic cylinder are respectively located at the upper and lower ends of the right outer wall of the raft body, and the third hydraulic cylinder and the fourth hydraulic cylinder are respectively located at the left and right ends of the right outer wall of the raft body.