Hydraulic control system for wave power generator set

Abstract

The present invention discloses a hydraulic control system, and in particular, a hydraulic control system for a wave-powered generator set, belonging to the technical field of hydraulic control equipment design and manufacturing. A hydraulic control system for a wave-powered generator set is provided, which can effectively convert ocean wave energy and tidal energy into energy that can be used by humans. The hydraulic control system includes at least a tidal power generation control unit and a hydraulic station. The oil delivery end of the tidal power generation control unit is connected to the hydraulic station. The tidal power generation unit is connected to an external power float through the tidal power generation control unit. In cooperation with the tidal power generation control unit, the tidal power generation unit utilizes the ebb and flow of ocean waves to drive the tidal power generation unit to generate electricity.

Description

Technical Field

[0001] The present invention relates to a hydraulic control system, in particular to a hydraulic control system for a wave power generator set, and belongs to the technical field of design and manufacturing of hydraulic control equipment. Background Art

[0002] Ocean wave and tidal energy are inexhaustible sources of clean energy. Converting this natural energy from the universe into energy needed by humans, such as electricity, has become an indispensable part of human energy. Tidal energy is the periodic natural rise and fall of seawater caused by the gravitational pull of celestial bodies such as the moon and the sun. Wave energy is the result of the interaction between the atmosphere and the ocean, forming waves that fluctuate periodically under the influence of wind and the gravity of the seawater. Wave energy has a certain amount of kinetic energy and potential energy. There is currently no technology available to effectively utilize ocean wave and tidal energy. Summary of the Invention

[0003] The technical problem to be solved by the present invention is to provide a hydraulic control system for a wave-powered generator set which can effectively convert ocean wave energy and tidal energy into energy that can be used by humans.

[0004] The technical solution adopted to solve the above technical problems is: a hydraulic control system for a wave-powered generator set, the hydraulic control system at least includes a tidal power generation control unit and a hydraulic station, the oil delivery end of the tidal power generation control unit is connected to the hydraulic station, and the tidal generator set connected to the external power float through the tidal power generation control unit uses the ebb and flow of waves to drive the tidal generator set to generate electricity with the cooperation of the tidal power generation control unit.

[0005] Furthermore, the hydraulic control system also includes a wave power generation control unit, and the oil delivery end of the wave power generation control unit is also connected to the hydraulic station; the wave power generation unit connected to the external power float through the wave power generation control unit, with the cooperation of the wave power generation control unit, utilizes the wave power in various directions to drive the wave power generation unit to generate electricity.

[0006] A preferred embodiment of the above scheme is that the hydraulic control system further includes a float height adjustment and locking cylinder group, and the external power float is locked in the vertical direction by the float height adjustment and locking cylinder group connected to the tidal power generation control unit.

[0007] Furthermore, the float height adjustment and locking cylinder group includes a motor pump group, a secondary telescopic cylinder and a hydraulic winch. The secondary telescopic cylinder and the hydraulic winch lock the external power float in the vertical direction through the driving force output by the motor pump group.

[0008] A preferred embodiment of the above scheme is that the tidal power generation control unit includes at least two groups of reversing valves and two groups of balancing valves, one infusion end of the tidal power generation control unit is connected to the hydraulic station through the motor pump group of the float height adjustment and locking cylinder group, and the secondary telescopic cylinder and hydraulic winch of the float height adjustment and locking cylinder group are respectively connected in parallel to the end of the motor pump group through a group of the reversing valves and a group of the balancing valves.

[0009] Furthermore, the tidal power generation control unit also includes a loading control valve and a relief valve. The loading control valve is arranged on the output end of the motor pump group, and the other infusion end of the tidal power generation control unit is connected to the hydraulic station through the reversing valve.

[0010] A preferred embodiment of the above scheme is that the wave power generation control unit includes a wave energy conversion cylinder group and a generator drive valve group, one end of the generator drive valve group is connected to the hydraulic station, the other end of the generator drive valve group is connected to one end of the wave energy conversion cylinder group, and the other end of the wave energy conversion cylinder group is connected to the hydraulic station.

[0011] Furthermore, the wave energy conversion cylinder group includes at least four groups of parallel hydraulic cylinders, the rod ends of each group of hydraulic cylinders are connected to the hydraulic station at the same time, the rodless ends of each group of hydraulic cylinders are connected in parallel through a delivery end and connected to the generator drive valve group, the rodless ends of each group of hydraulic cylinders are connected to the hydraulic station through another delivery end, and a one-way valve is connected in series on the two delivery ends of the rodless ends of each group of hydraulic cylinders. The hydraulic cylinders of each group are connected to the float through the piston rod arranged inside them.

[0012] A preferred embodiment of the above solution is that a high-pressure filter and an accumulator are further connected to the delivery end of each group of hydraulic cylinders connected in parallel.

[0013] Furthermore, the generator drive valve group includes a primary pressure control valve, a secondary pressure control valve, a generator motor, a proportional reversing valve, a throttle valve and an oil inlet check valve. One end of the parallel primary pressure control valve, secondary pressure control valve, generator motor and throttle valve are all connected to the hydraulic station, and the other end of the parallel primary pressure control valve, secondary pressure control valve, generator motor and throttle valve is connected to one end of each parallel group of hydraulic cylinders that is not connected to the hydraulic station through a high-pressure filter. The proportional reversing valve is arranged on the parallel line between the primary pressure control valve and the secondary pressure control valve.

[0014] The beneficial effects of the present invention are as follows: the technical solution provided by the present application is to provide a hydraulic control system comprising at least a tidal power generation control unit and a hydraulic station, and to connect the oil delivery end of the tidal power generation control unit to the hydraulic station. Then, a tidal power generation unit connected to an external power float via the tidal power generation control unit is driven by the tidal power generation control unit to generate electricity using the ebb and flow of ocean waves. In this way, at least the ocean tides can be effectively converted into electrical energy generated under the control of the tidal power generation control unit through the tidal power generation control unit in cooperation with the hydraulic station, thereby achieving the purpose of the present application of effectively converting ocean wave energy and tidal energy into energy that can be used by humans. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] Figure 1 The figure is a schematic structural diagram of the hydraulic control system for the wave power generator set according to the present invention.

[0016] Marked in the figure are: tidal power generation control unit 1, hydraulic station 2, wave power generation control unit 3, float height adjustment and locking cylinder group 4, motor pump group 5, secondary telescopic cylinder 6, hydraulic winch 7, reversing valve 8, balancing valve 9, loading control valve 10, overflow valve 11, wave energy conversion cylinder group 12, generator drive valve group 13, hydraulic cylinder 14, one-way valve 15, piston rod 16, high-pressure filter 17, accumulator 18, primary pressure control valve 19, secondary pressure control valve 20, generator motor 21, proportional reversing valve 22, throttle valve 23, oil inlet one-way valve 24. DETAILED DESCRIPTION

[0017] like Figure 1 The present invention provides a hydraulic control system for a wave-powered generator set that can effectively convert ocean wave energy and tidal energy into energy for human use. The hydraulic control system includes at least a tidal power generation control unit 1 and a hydraulic station 2. The oil delivery end of the tidal power generation control unit 1 is connected to the hydraulic station 2. The tidal power generation control unit 1, which is connected to an external power float, cooperates with the tidal power generation control unit 1 to drive the tidal power generation set to generate electricity using the ebb and flow of ocean waves. The technical solution provided by this application is to provide a hydraulic control system that includes at least a tidal power generation control unit and a hydraulic station, and connects the oil delivery end of the tidal power generation control unit to the hydraulic station. Then, the tidal power generation control unit, which is connected to an external power float, cooperates with the tidal power generation control unit to drive the tidal power generation set to generate electricity using the ebb and flow of ocean waves. In this way, at least the ocean tides can be effectively converted into electrical energy generated under the control of the tidal power generation control unit through the tidal power generation control unit in cooperation with the hydraulic station, achieving the purpose of the present application of effectively converting ocean wave energy and tidal energy into energy for human use.

[0018] In the above embodiment, in order to maximize the utilization of ocean energy while simplifying the structure of the hydraulic control system described herein and improving the compactness of the entire system, the hydraulic control system described herein also includes a wave power generation control unit 3 and a float height adjustment and locking cylinder assembly 4. The oil delivery end of the wave power generation control unit 3 is also connected to the hydraulic station 2. The wave power generation unit connected to the external power float via the wave power generation control unit 3 utilizes the wave power in various directions to drive the wave power generation unit to generate electricity. The external power float is locked in the vertical direction by the float height adjustment and locking cylinder assembly 4 connected to the tidal power generation control unit. In this case, preferably, the float height adjustment and locking cylinder assembly 4 includes a motor pump assembly 5, a secondary telescopic cylinder 6, and a hydraulic winch 7. The secondary telescopic cylinder 6 and the hydraulic winch 7 lock the external power float in the vertical direction through the driving force output by the motor pump assembly 5.

[0019] Furthermore, in order to maximize the use of existing standard parts, reduce the use of specialized components, and facilitate manufacturing, assembly, and subsequent maintenance, the tidal power generation control unit 1 described in this application includes at least two sets of reversing valves 8 and two sets of balancing valves 9. One infusion end of the tidal power generation control unit 1 is connected to the hydraulic station 2 via the motor pump group 5 of the float height adjustment and locking cylinder group 4. The secondary telescopic cylinder 6 and the hydraulic winch 7 of the float height adjustment and locking cylinder group 8 are connected in parallel to the end of the motor pump group 5 via a set of the reversing valves 8 and a set of the balancing valves 9, respectively. At this time, for ease of control, the tidal power generation control unit 1 described in this application also includes a loading control valve 10 and a relief valve 11. The loading control valve 10 is arranged on the output end of the motor pump group 5, and the other infusion end of the tidal power generation control unit 1 is connected to the hydraulic station 2 via the reversing valve 8. Accordingly, the wave power generation control unit 3 described in the present application includes a wave energy conversion cylinder group 12 and a generator drive valve group 13. One end of the generator drive valve group 13 is connected to the hydraulic station 2, and the other end of the generator drive valve group 13 is connected to one end of the wave energy conversion cylinder group 12, and the other end of the wave energy conversion cylinder group 12 is connected to the hydraulic station 2. At this time, the wave energy conversion cylinder group 12 includes at least four parallel groups of hydraulic cylinders 14. The rod ends of each group of hydraulic cylinders 14 are simultaneously connected to the hydraulic station 2. The rodless ends of each group of hydraulic cylinders 14 are connected in parallel to the generator drive valve group 13 through a delivery end. The rodless ends of each group of hydraulic cylinders 14 are connected to the hydraulic station 2 through another delivery end. A one-way valve 15 is connected in series to both delivery ends of the rodless ends of each group of hydraulic cylinders 14. Each group of hydraulic cylinders 14 is connected to a float through a piston rod 16 arranged inside it. A high-pressure filter 17 and an accumulator 18 are also connected to the delivery end of each parallel group of hydraulic cylinders 14. In this case, preferably, the generator drive valve group 13 includes a primary pressure control valve 19, a secondary pressure control valve 20, a generator motor 21, a proportional reversing valve 22, a throttle valve 23, and an oil inlet check valve 24. One end of the parallel primary pressure control valve 19, secondary pressure control valve 20, generator motor 21, and throttle valve 23 are all connected to the hydraulic station 2. The other end of the parallel primary pressure control valve 19, secondary pressure control valve 20, generator motor 21, and throttle valve 23 is connected to the end of each parallel group of hydraulic cylinders 14 that is not connected to the hydraulic station 2 through the high-pressure filter 17. The proportional reversing valve 22 is arranged on the parallel line between the primary pressure control valve 19 and the secondary pressure control valve 20.

[0020] In summary, the design concept of this application is that the tide drives the float to rise and fall, the rise and fall of the float drives the rotation of the screw, and the rotation of the screw drives the rotation of the generator, thereby generating electricity. The generated electricity can be used for any equipment or device that requires electricity. The height adjustment of the float position can be adjusted by a two-stage telescopic cylinder, which can meet the requirements of power generation regardless of the tide level.

[0021] Waves push the float to swing back and forth, left and right. The swing mechanism drives the hydraulic cylinder to reciprocate. A bridge circuit composed of one-way valves continuously draws and discharges oil from the tank, generating continuous hydraulic energy that is transmitted to the control valve block and accumulator. The control valve group keeps the motor running, thus driving the engine. De-energizing the proportional solenoid valve locks the swing mechanism; energizing the proportional solenoid valve activates the generator.

[0022] The working principle of the above-mentioned hydraulic control system of the present application is that the waves push the hydraulic cylinder to extend, the dry cavity of the cylinder absorbs oil, and the hydraulic oil enters the rodless cavity of the hydraulic cylinder through the pipeline through the oil inlet check valve 18, and the hydraulic oil in the rod cavity is discharged back to the oil tank; when the waves push the hydraulic cylinder to retract, the rod cavity of the hydraulic cylinder 16 absorbs oil from the oil tank through the pipeline, and the hydraulic oil in the rodless cavity of the hydraulic cylinder 16 is increased by the oil cylinder and flows out through the oil outlet check valve 17, and after the oil is sucked and pulsated by the accumulator 13, it enters the generator motor 11 through the proportional valve, and the high-pressure oil drives the generator motor to rotate, and the motor drives the generator to rotate, thereby realizing the function of converting the wave energy of the ocean into electrical energy; the opening size of the proportional reversing valve can be adjusted to control the rotation speed of the generator motor, thereby controlling the power generation power of the generator to prevent the wave energy from being too high to damage the generator; the above working process moves back and forth, and no additional energy is required. As long as there are waves, sustainable power generation can be achieved.

Claims

1. A hydraulic control system for a wave power generator set, characterized by: The hydraulic control system comprises at least a tidal power generation control unit (1) and a hydraulic station (2), wherein the oil delivery end of the tidal power generation control unit (1) is connected to the hydraulic station (2), and a tidal power generator set connected to an external power float via the tidal power generation control unit (1) utilizes the ebb and flow of ocean waves to drive the tidal power generator set to generate electricity in cooperation with the tidal power generation control unit (1). The hydraulic control system further comprises a wave power generation control unit (3), the oil delivery end of the wave power generation control unit (3) is also connected to the hydraulic station (2); the wave power generation unit connected to the external power float via the wave power generation control unit (3) utilizes the wave power in various directions of the ocean to drive the wave power generation unit to generate electricity under the cooperation of the wave power generation control unit (3). The hydraulic control system further comprises a float height adjustment and locking cylinder group (4), and the external power float is locked in the vertical direction by the float height adjustment and locking cylinder group (4) connected to the tidal power generation control unit. The float height adjustment and locking cylinder group (4) includes a motor pump group (5), a secondary telescopic cylinder (6) and a hydraulic winch (7). The secondary telescopic cylinder (6) and the hydraulic winch (7) lock the external power float in the vertical direction through the driving force output by the motor pump group (5). The tidal power generation control unit (1) comprises at least two groups of reversing valves (8) and two groups of balancing valves (9). One infusion end of the tidal power generation control unit (1) is connected to the hydraulic station (2) via the motor pump group (5) of the float height adjustment and locking cylinder group (4). The secondary telescopic cylinder (6) and the hydraulic winch (7) of the float height adjustment and locking cylinder group (4) are respectively connected in parallel to the end of the motor pump group (5) via a group of the reversing valves (8) and a group of the balancing valves (9).

2. The hydraulic control system for a wave power generator set according to claim 1, characterized in that: The tidal power generation control unit (1) further comprises a loading control valve (10) and a relief valve (11). The loading control valve (10) is arranged on the output end of the motor pump group (5). The other infusion end of the tidal power generation control unit (1) is connected to the hydraulic station (2) via the reversing valve (8).

3. The hydraulic control system for a wave power generator set according to claim 1 or 2, characterized in that: The wave power generation control unit (3) comprises a wave energy conversion cylinder group (12) and a generator drive valve group (13), one end of the generator drive valve group (13) is connected to the hydraulic station (2), the other end of the generator drive valve group (13) is connected to one end of the wave energy conversion cylinder group (12), and the other end of the wave energy conversion cylinder group (12) is connected to the hydraulic station (2).

4. The hydraulic control system for a wave power generator set according to claim 3, characterized in that: The wave energy conversion cylinder group (12) comprises at least four groups of parallel hydraulic cylinders (14), the rod ends of each group of hydraulic cylinders (14) are respectively connected to the hydraulic station (2), the rodless ends of each group of hydraulic cylinders (14) are connected in parallel through a delivery end and then connected to the generator drive valve group (13), the rodless ends of each group of hydraulic cylinders (14) are connected to the hydraulic station (2) through another delivery end, and a one-way valve (15) is connected in series on both delivery ends of the rodless ends of each group of hydraulic cylinders (14), and each group of hydraulic cylinders (14) is connected to the float through a piston rod (16) arranged inside the piston rod (16).

5. The hydraulic control system for a wave power generator set according to claim 4, characterized in that: A high-pressure filter (17) and an accumulator (18) are also connected to the delivery end of each group of hydraulic cylinders (14) connected in parallel.

6. The hydraulic control system for a wave power generator set according to claim 5, characterized in that: The generator drive valve group (13) includes a primary pressure control valve (19), a secondary pressure control valve (20), a generator motor (21), a proportional reversing valve (22), a throttle valve (23) and an oil inlet check valve (24). One end of the parallel primary pressure control valve (19), the secondary pressure control valve (20), the generator motor (21) and the throttle valve (23) are all connected to the hydraulic station (2). The other end of the parallel primary pressure control valve (19), the secondary pressure control valve (20), the generator motor (21) and the throttle valve (23) are connected to one end of each parallel group of hydraulic cylinders (14) not connected to the hydraulic station (2) through a high-pressure filter (17). The proportional reversing valve (22) is arranged on the parallel line between the primary pressure control valve (19) and the secondary pressure control valve (20).

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