CN103498752A - Variable-pitch suspended blade device for capturing wave energy - Google Patents

Abstract

The invention discloses a variable-pitch suspended blade device for capturing wave energy. The device comprises a suspended support, hydraulic motors, bolts, couplers, blade pieces and a drive hydraulic system. The hydraulic motors are arranged on the suspended support through the bolts and are connected with the blade pieces through the couplers. The drive hydraulic system comprises a hydraulic pump, an overflow valve, a one-way valve, a proportional valve, a filter and an oil tank. The hydraulic motors rotate under the action of the drive hydraulic system so as to adjust the rotating angle of the blade pieces through the couplers, and variable pitch of a suspended blade is achieved. The rotating angle of the blade pieces is reasonably adjusted, so that the matching relation between capturing efficiency of the suspended blade device and the wave energy is achieved, and the self-existent capacity of a suspended blade type wave-energy utilization device under extremely bad conditions like windstorms and typhoons can be improved.

Description

Variable paddle suspension pendulum for capturing wave energy

technical field

The invention relates to a suspension pendulum device for capturing wave energy, in particular to a suspension pendulum device with variable pitch.

Background technique

The suspended pendulum wave energy utilization device is a typical coastal engineering device, which can absorb ocean wave energy, convert it into electrical energy or realize seawater desalination, and has high wave energy conversion efficiency. The hanging pendulum is the core component of this wave energy utilization device, and the wave energy can be captured through its swing under the action of waves. The existing suspension pendulum structures are all integrated, do not have the function of pitch adjustment, and cannot adjust the matching relationship between capture efficiency and wave energy. When the wave energy exceeds the design output power of the suspended pendulum type wave energy utilization device, especially in extreme conditions such as storms and typhoons, the existing integrated suspension pendulum will bear huge wave force, which will easily cause the suspended pendulum type wave Can take advantage of the destruction of the device.

Contents of the invention

The object of the present invention is to provide a variable paddle suspension pendulum device for capturing wave energy.

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

The invention is composed of a suspension bracket, a hydraulic motor, a bolt, a shaft coupling, a swing plate and a driving hydraulic system. The hydraulic motor is installed on the suspension bracket through bolts, and the hydraulic motor is connected with the swing piece through a shaft coupling. The driving hydraulic system includes a hydraulic pump, relief valve, check valve, proportional valve, filter and oil tank. The input end of the hydraulic pump is connected to the oil tank, and the output end is divided into two circuits, one of which is connected to the inlet of the overflow valve for safety protection, and the other is connected to the inlet of the hydraulic motor after passing through the one-way valve and proportional valve, and then the outlet of the hydraulic motor After passing through the filter and proportional valve, it is connected to the oil tank. The hydraulic motor rotates under the action of the driving hydraulic system, and then realizes the adjustment of the swing angle through the coupling.

The beneficial effects of the present invention are:

(1) The hydraulic motor can adjust the rotation angle of the pendulum under the action of the driving hydraulic system to realize the pitch change of the suspension pendulum. When the pendulum piece is perpendicular to the wave direction, the hanging pendulum device has the maximum capture efficiency; when the pendulum piece is perpendicular to the wave direction, the suspension pendulum device has the minimum capture efficiency. By reasonably adjusting the rotation angle of the pendulum, the matching relationship between the capture efficiency of the pendulum device and the wave energy can be realized, and the self-storage ability of the pendulum-type wave energy utilization device under extremely harsh conditions such as storms and typhoons can be improved.

(2) The hydraulic motor and the pendulum form a modular unit, which is easy to install.

(3) The structure of each part is simple, which is convenient for processing and assembly.

Description of drawings

Figure 1 is a schematic diagram of the assembly of the present invention.

Fig. 2 is a hydraulic principle diagram of the present invention.

Fig. 3 is a schematic diagram of the state of the pendulum when the present invention has the maximum capture efficiency.

Fig. 4 is a schematic diagram of the state of the pendulum when the present invention has the minimum capture efficiency.

Fig. 5 is a schematic structural view of the suspension bracket in the present invention.

Fig. 6 is a schematic structural view of the pendulum piece in the present invention.

In the figure: 1. Suspension bracket, 2. Hydraulic motor, 3. Bolt, 4. Coupling, 5. Swing plate, 6. Filter, 7. Proportional valve, 8. Check valve, 9. Relief valve, 10, hydraulic pump, 11, oil tank.

Detailed ways

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

As shown in Fig. 1, Fig. 5 and Fig. 6, the present invention is made up of suspension bracket 1, hydraulic motor 2, bolt 3, coupling 4, pendulum plate 5 and driving hydraulic system. The hydraulic motor 2 is installed on the suspension bracket 1 through the bolt 3, and the hydraulic motor 2 is connected with the pendulum plate 5 through the coupling 4. There are three groups of the hydraulic motor 2 and the pendulum plate 5 in the embodiment, but it can be added according to the situation in the implementation process. Number of groups.

As shown in FIG. 2 , the driving hydraulic system includes a hydraulic pump 10 , a relief valve 9 , a one-way valve 8 , a proportional valve 7 , a filter 6 and an oil tank 11 . The oil output by the hydraulic pump 10 is connected to the inlet of the overflow valve 9 which plays a role of safety protection, and after passing through the check valve 8, the inlet c of the proportional valve 7 and the left outlet a of the proportional valve 7, it is connected to the inlet of the hydraulic motor 2. After the outlet of the hydraulic motor 2 passes through the filter 6, the right outlet b of the proportional valve 7 and the oil return port d of the proportional valve 7, it is connected to the oil tank 11. The hydraulic motor 2 rotates under the action of the driving hydraulic system, and then realizes the adjustment of the rotation angle of the swing plate 5 through the coupling 4 .

Fig. 3 is the state of the pendulum plate 5 when the present invention has the maximum capture efficiency. At this moment, the action surface of the pendulum piece 5 is perpendicular to the wave direction.

Fig. 4 is the state of the pendulum piece 5 when the present invention has the minimum capture efficiency. At this time, the action surface of the pendulum piece 5 is parallel to the wave direction.

Claims (1)

1. the variable oar of catching wave energy hangs pendulum device, it is characterized in that: comprise suspension holdfast (1), oil hydraulic motor (2), bolt (3), coupling (4), pendulum (5) and drive hydraulic system principle;

It is upper that described oil hydraulic motor (2) is arranged on suspension holdfast (1) by bolt (3), and oil hydraulic motor (2) is connected with pendulum (5) by coupling (4);

Described drive hydraulic system principle comprises oil hydraulic pump (10), relief valve (9), one-way valve (8), Proportional valve (7), filter (6) and fuel tank (11); Oil hydraulic pump (10) input end is connected to fuel tank (11), output terminal is divided into two-way, wherein a road is connected with the relief valve that plays the safety protection effect (9) entrance, another road is after one-way valve (8) and Proportional valve (7), with oil hydraulic motor (2) entrance, be connected, after by oil hydraulic motor (2) outlet after filter (6) and Proportional valve (7), be connected to fuel tank (11);

Described oil hydraulic motor (2) can rotate under the effect of drive hydraulic system principle, and then realizes the adjusting of pendulum (5) corner by coupling (4).

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