WO2015081869A1

WO2015081869A1 - Ocean wave hydraulic power generation ship

Info

Publication number: WO2015081869A1
Application number: PCT/CN2014/093016
Authority: WO
Inventors: 吕干彬; 吕永江; 闇耀保
Original assignee: 上海粤江实业有限公司
Priority date: 2013-12-04
Filing date: 2014-12-04
Publication date: 2015-06-11
Also published as: CN104696147B; CN104696147A

Abstract

An ocean wave hydraulic power generation ship comprises a hull (1), a power generation system and a power transmission system (3). The power generation system is fixed to the hull (1) and connected to the power transmission system (3), the power generation system comprises an input device (2), a conversion device and a power generation device (6), the input device (2) is connected to the conversion device, and the conversion device drives the power generation device (6) to generate power; the conversion device is a hydraulic ejector rod (5), the input device (2) comprises two balance weights (8), a rotating drum (9) and two power output ends (26), the two balance weights (8) are fixed to two ends of the rotating drum (9) through ropes or chains, one power output end (26) drives a piston (18) of the hydraulic ejector rod (5) to do a compressing movement, and the other power output end (26) drives the piston (18) of the hydraulic ejector rod (5) to do a lifting movement. The ocean wave hydraulic power generation ship is simple in structure, low in cost, high in power generation efficiency, good in moving performance and free of pollution.

Description

Ocean wave hydraulic power generation ship

Technical field

The invention relates to the field of renewable energy, and in particular to a marine wave hydraulic power generating ship.

Background technique

At present, with the increasing use of petrochemical energy, the problem of air pollution has become more and more serious. Energy conservation and environmental protection have become the focus of the world. Environmental issues have been highly valued by people all over the world. People are turning their attention to renewable energy. For example, the waves of the sea can generate electricity, etc., and the wave energy in the sea is a "blue energy" with large reserves, renewable, regular, and non-polluting. It is a big insufficiency and use of nature for human beings. Exhausted precious wealth. According to relevant information, China's 18,000-kilometer coastline, plus more than 5,000 kilometers of coastline of more than 5,000 islands, totals more than 32,000 kilometers, and the wave energy can contain nearly 200 million kilowatts, but the existing ocean wave hydraulic power generating ship The development of tidal energy and wave energy is difficult and the typhoon is very much affected. Therefore, the structural design of the ocean wave hydraulic power generation ship is very complicated and the mobility is poor. When the typhoon hits, the loss of the ocean wave hydraulic power generation ship is relatively large, especially the ocean. The early development cost of the wave hydraulic power generation ship is high, but the power generation efficiency is very low.

Summary of the invention

In view of the above-mentioned deficiencies of the current marine wave hydraulic power generating ship, the present invention provides a marine wave hydraulic power generating ship having many advantages such as high power generation efficiency, simple structure, and low cost.

In order to achieve the above object, embodiments of the present invention adopt the following technical solutions:

An ocean wave hydraulic power generation ship comprising a hull, a power generation system and a power transmission system, the power generation system being fixed on the hull, the power generation system being connected to the power transmission system, the power generation system comprising an input device, a conversion device, and a power generating device, the input device being connected to the converting device, the converting device driving the power generating device to generate electricity; the converting device is a hydraulic jack, the input device comprising two counterweights, a rotating drum and two power An output end, the two weights being fixed at two ends of the drum by a rope or a chain, and one of the two power output ends drives a piston of the hydraulic jack to perform a compression movement, The other of the two power outputs drives the piston of the hydraulic ram for lifting motion.

According to an aspect of the invention, the ocean wave hydraulic power generating ship is provided with a plurality of power generation systems, and an on-off valve is separately provided on a line between each of the plurality of power generation systems and the power transmission system.

According to an aspect of the invention, the hydraulic ram includes two closed upper and lower chambers, and the upper and lower chambers are respectively provided with an oil inlet and an oil outlet.

According to an aspect of the invention, the input device further includes a pulley block, a beam, a sliding tube and a sliding rail, the beam is connected to a piston of the hydraulic ram, and both ends of the beam are fixed on the sliding cylinder, The slide cylinder is mounted on the slide rail, and two power output ends of the input device are respectively connected to the cross beam through the pulley block.

According to an aspect of the invention, the power generating device includes an accumulator, a hydraulic motor and a generator, and an oil outlet of the upper chamber and the lower chamber is connected to the accumulator, the accumulator The hydraulic motor is driven to rotate, and the hydraulic motor drives the generator to rotate through a coupling.

According to an aspect of the invention, the oil inlet and the oil outlet of the upper chamber and the lower chamber are both provided with one-way valves.

According to an aspect of the invention, the piston of the hydraulic ram is connected to the center of the beam by a hinge.

According to one aspect of the invention, a flow control valve is provided on the conduit between the accumulator and the hydraulic motor.

According to one aspect of the invention, the two weights are two containers, the container being filled with water.

According to an aspect of the invention, the weight ratio of the two containers is 2:1, and wherein the container having a large weight is fixed to the side of the hull by a fixed pulley.

Advantages of the implementation of the present invention: Since the power generation system in the marine wave hydraulic power generating ship of the present invention includes an input device, a conversion device, and a power generating device, and the input device is connected to the conversion device, the conversion device employs a hydraulic ram, and the input device includes two The weight, the drum and the two power output ends, the two weights are fixed at the two ends of the drum by ropes or chains, one of the power output ends drives the piston of the hydraulic ram to perform compression movement, and the other power output end drives the hydraulic top The rod performs lifting movement, so that the input device drives the hydraulic ram to move, and the back and forth movement of the hydraulic ram drives the power generating device to generate electricity, thereby making the marine wave hydraulic power generating ship of the invention have simple structure, low cost, high power generation efficiency, and fast payback period. Many advantages. In addition, since the power generation system is completely fixed to the hull in the marine wave hydraulic power generation ship of the present invention, the movement performance of the ocean wave hydraulic power generation ship is very good, and when the typhoon attacks, the ocean can be conveniently and timely. The wave hydraulic power boat is transferred to the safe harbor, thereby avoiding the loss caused by the typhoon. In addition, the ocean wave hydraulic power generation ship provided by the invention not only does not change the marine environment and pollution, but also can effectively utilize wave energy and tidal energy power generation to realize full and effective utilization of renewable energy.

DRAWINGS

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings to be used in the embodiments will be briefly described below. It is obvious that the drawings in the following description are only some embodiments of the present invention. Those skilled in the art can also obtain other drawings based on these drawings without paying any creative work.

BRIEF DESCRIPTION OF THE DRAWINGS Figure 1 is a schematic plan view showing an embodiment of a marine wave hydraulic power boat according to the present invention.

2 is a front elevational view of the embodiment of the ocean wave hydraulic power boat of FIG. 1.

3 is a schematic structural view of an input device in the embodiment of the ocean wave hydraulic power generating ship shown in FIG. 1.

4 is a schematic view showing the connection between the input device, the hydraulic ram and the power generating device in the embodiment of the ocean wave hydraulic power generating ship shown in FIG. 1.

detailed description

The invention will now be further described with reference to the accompanying drawings.

As shown in FIG. 1, FIG. 2, FIG. 3 and FIG. 4, an embodiment of a marine wave hydraulic power generating ship according to the present invention, which includes a hull 1, a power generation system, and a power transmission system, is shown by way of illustration only. 3, the power generation system is fixed on the hull 1, and the power generation system is connected to the power transmission system 3, the power generation system includes an input device 2, a conversion device, and a power generation device 6, the input device 2 is connected to the conversion device, and the conversion device drives the power generation device 6 The conversion device is a hydraulic ram 5, the input device 2 comprises two counterweights 8, a drum 9 and two power output ends 26, and the two weights 8 are fixed to the two ends of the drum 9 by ropes or chains One of the two power output ends 26 drives the piston 18 of the hydraulic ram 5 to perform a compression movement, and the other power output end 26 drives the piston 18 of the hydraulic ram 5 to perform a lifting movement.

In practical applications, in order to increase the power generation capacity of the ocean wave hydraulic power generation ship, the ocean wave hydraulic power generation ship may optionally be provided with a plurality of power generation systems. For example, the ocean wave hydraulic power generation ship of the present embodiment is provided with ten power generation systems. The design weight of the hull 1 is about 300T. Ten power generation systems can be divided into two rows, which are evenly and symmetrically arranged on the hull 1 of the marine wave hydraulic power generation ship to ensure the balance of the hull 1 load and improve the ocean wave hydraulic pressure. The safety and stability of the power generation ship; at the same time, the switch valve 4 can be separately provided on the line between each power generation system and the power transmission system 3. When some of the power generation systems fail, it is only necessary to cut off the damaged power generation system line. The on-off valve 4 repairs the fault of the damaged power generation system, and other power generation systems can generate power normally. After the damaged power generation system is repaired and installed, the on-off valve 4 is closed to generate electricity and the power is supplied to the power transmission system. Therefore, the marine wave hydraulic power generation ship of the present invention is very convenient for maintenance and replacement, and the maintenance cost is low and the controllability is good. High reliability.

In practical applications, in order to improve the power generation efficiency of the ocean wave hydraulic power generating ship, in an alternative case, the hydraulic ram 5 may include two closed upper chambers 16 and lower chambers 17, upper chamber 16 and lower chamber 17 is provided with an oil inlet port 14 and an oil outlet port 15, respectively, and the oil inlet port 14 and the oil outlet port 15 of the upper chamber 16 and the lower chamber 17 are provided with a one-way valve, when a power output end 26 of the input device 2 is provided. When the piston 18 that drives the hydraulic ram 5 performs a compression movement, the pipe 25 of the oil outlet port 15 in the upper chamber 16 is blocked by the one-way valve, and the one-way valve on the inlet port 14 of the oil inlet port 14 is opened, and the hydraulic oil tank is opened. The hydraulic oil in 24 is drawn into the upper chamber 16, and at the same time, the hydraulic oil in the lower chamber 17 is received by the piston. The 18-bar squeeze, the pipe 25 of the oil inlet 14 is blocked by the one-way valve, the one-way valve on the pipe 15 of the oil outlet 15 is opened, and the hydraulic energy is sent to the power generating device 6 through the pipe 25, thereby driving the power generating device 6 rotating power generation; when the other power output end 26 of the input device 2 drives the hydraulic ram 5 to perform the lifting movement, the pipe 25 of the oil outlet port 15 in the lower chamber 17 is blocked by the one-way valve, and the oil inlet port 14 is blocked. The one-way valve on the pipe 25 is opened to draw the hydraulic oil in the hydraulic oil tank 24 into the upper chamber 16, while the hydraulic oil in the upper chamber 16 is squeezed by the rod of the piston 18, and the pipe 25 of the oil inlet port 14 Blocked by the one-way valve, the one-way valve on the oil outlet 15 pipe 25 is opened, and the hydraulic energy is sent to the power generating device 6 through the pipe 25, thereby causing the power generating device 6 to rotate and generate electricity, so that the hydraulic ejector 5 will continuously The hydraulic energy is supplied to the power generating unit 6, which greatly improves the power generation efficiency of the ocean wave hydraulic power generating ship. In an optional case, the input device 2 further comprises a pulley block 10, a beam 11, a slide 12 and a slide rail 13. The cross member 11 is connected to the piston 18 of the hydraulic ram 5, and both ends of the beam 11 are fixed on the slide tube 12, sliding The cylinder 12 is mounted on the slide rails 13. The two slide rails 13 are arranged in parallel on both sides of the pulley block 10. The two power output ends 26 of the input device 2 are respectively connected to the beam 11 through the pulley block 10, in order to improve the stability of the operation of the device. The piston 18 of the hydraulic ram 5 is connected to the center of the beam 11 by means of a hinge. By means of this technical improvement, the two power outputs 26 of the input device 2 can be doubled by the pulley block 10 to increase the piston 18 of the hydraulic ram 5 The input force can greatly increase the power generation efficiency of the ocean wave hydraulic power generating vessel.

In a practical application, the power generating device 6 may optionally include an accumulator 19, a hydraulic motor 21 and a generator 23, and the oil outlets 15 of the upper chamber 16 and the lower chamber 17 are connected to the accumulator 19, the accumulator 19 drives the hydraulic motor 21 to rotate, and the hydraulic motor 21 drives the generator 23 to rotate through the coupling 22. In an optional case, a flow control valve 20 may be provided on the pipe 25 between the hydraulic motor 21, the accumulator 19 and the hydraulic motor 21 for the convenience of manual control, so that the hydraulic ram 5 first delivers hydraulic energy to the energy storage. The accumulator 19 transmits the hydraulic energy to the hydraulic motor 21. Under the action of the hydraulic energy, the hydraulic motor 21 generates a high-speed rotation, thereby causing the generator 23 to rotate and generate electricity. The entire ocean wave hydraulic power generating ship has a simple structure and low cost. The investment recovery period is fast; the hydraulic motor 21 can select a vane motor, and a flow control valve 20 can be disposed on the pipe 25 between the accumulator 19 and the vane motor to control the flow rate, thereby controlling the torque of the hydraulic motor 21. And opening, when the flow control valve 20 controls the flow rate to zero, the hydraulic motor 21 stops operating, and the accumulator 19 flows the overpressure hydraulic pressure back to the hydraulic oil tank 24 through the return oil passage, thereby ensuring stable operation of the hydraulic motor 21.

In addition, in the optional case, the two weights 8 can be set as two containers, and the water inlet and the water outlet are respectively provided at the top and the bottom of the container, so that the container is filled with water or the container is needed when needed. A part of the water or all the water inside is discharged. Further, the weight ratio of the above two containers may be optionally set to 2:1, and the container having a large weight therein is fixed to the side of the hull 1 by the fixed pulley 7, and the weight 8 is moved up and down under the impact of the ocean wave. , the rotating drum 9 is rotated, and the rotating drum 9 rotates through the two power output ends 26 to drive the cylinder piston 18 to move. Power generation; in addition, when the typhoon hits, the water outlet at the bottom of the two containers is opened, the water in the container is completely discharged, and the ocean wave hydraulic power generation ship is transferred to the safe harbor, so the mobile performance of the ocean wave hydraulic power generation ship is very good. Can effectively avoid the loss caused by the typhoon.

The working principle of the present invention will be exemplarily illustrated by the above-described embodiment of the ocean wave hydraulic power generating ship: when the ocean wave hydraulic power generating ship is under the impact of waves, the counterweight 8 moves up and down, and the rotating drum 9 is rotated, so that two The power output end 26 drives the cylinder piston 18 to move through the pulley block 10. When a power output end 26 of the input device 2 drives the piston 18 of the hydraulic jack 5 to perform a compression movement, the duct 25 of the oil outlet 15 in the upper chamber 16 The one-way valve is blocked by the one-way valve, and the one-way valve on the inlet port 14 is opened, and the hydraulic oil in the hydraulic oil tank 24 is sucked into the upper chamber 16, and at the same time, the hydraulic oil in the lower chamber 17 is received by the piston 18. When the rod is squeezed, the pipe 25 of the oil inlet port 14 is blocked by the one-way valve, the one-way valve on the oil outlet 15 pipe 25 is opened, and the hydraulic energy is sent to the accumulator 19 through the pipe 25, the accumulator 19 The hydraulic energy is transmitted to the hydraulic motor 21, and under the action of the hydraulic energy, the hydraulic motor 21 generates a high-speed rotation, thereby causing the generator 23 to rotate and generate electricity; when the other power output end 26 of the input device 2 drives the hydraulic ram 5 to perform the lifting movement. Time The pipe 25 of the oil outlet 15 in the chamber 17 is blocked by the one-way valve, and the check valve on the pipe inlet 25 of the oil inlet port 14 is opened, and the hydraulic oil in the hydraulic oil tank 24 is sucked into the upper chamber 16, and The hydraulic oil in the upper chamber 16 is squeezed by the rod of the piston 18, and the pipe 25 of the oil inlet port 14 is blocked by the one-way valve, and the one-way valve on the pipe 25 of the oil outlet port 15 is opened, and the hydraulic energy is passed through the pipe 25. It is sent to the accumulator 19, and the accumulator 19 transmits the hydraulic energy to the hydraulic motor 21. Under the action of the hydraulic energy, the hydraulic motor 21 generates a high-speed rotation, thereby causing the generator 23 to rotate and generate electricity, so the hydraulic ram 5 is uninterrupted. The hydraulic energy is supplied to the accumulator 19 to realize continuous power generation, and the electric power generated by the generator 23 is connected to the power transmission system 3, and is transported to the shore through the underwater cable. It can be seen from the above that the marine wave hydraulic power generating ship provided by the invention has the advantages of simple structure, low cost, high power generation efficiency and fast payback period; in particular, since the power generation system is all fixed on the hull 1, the ocean of the present invention The mobile performance of the wave hydraulic power generation ship is very good. When the typhoon hits, the ocean wave hydraulic power generation ship can be transferred to the safe harbor in a convenient and timely manner, thus avoiding the loss caused by the typhoon. In addition, the ocean wave hydraulic power generation ship provided by the invention not only does not change the marine environment and pollution, but also can effectively utilize wave energy and tidal energy power generation to realize full and effective utilization of renewable energy.

The marine wave hydraulic power generation ship of the invention is a power generation project for collecting wave energy into power, and the ocean wave hydraulic power generation ship has the advantages of simple structure, convenient manufacture, low cost, no change of environment, no pollution, and marine wave hydraulic power generation. The ship has high power generation efficiency, significant social benefits, and short payback period. The specific beneficial effects include at least the following aspects:

1. There is no need to build the infrastructure of the shore and the seabed, so it will not damage the ecological environment and pollution.

2, the structure of the ocean wave hydraulic power generation ship is very simple, plus the use of waste vessels for renovation, before The cost of the investment is low.

3. The ocean wave hydraulic power generation ship of the present invention can generate electricity as long as the wave height is about 0.5 meters, and the available sea surface is wide. According to relevant data, the average wave height in China is about 2 meters, and waves in coastal areas such as Guangdong, Fujian, and Zhejiang. The density of energy can reach 5-8KW/m.

4. Most of the equipment is installed on the hull 1 to prevent seawater corrosion. The switch valve 4 is separately provided on the line between each power generation system and the power transmission system 3. When some of the power generation systems fail, only the damage is cut off. The on-off valve 4 on the power generation system line, other power generation systems can generate electricity normally, and after the damaged power generation system is repaired and installed, the on-off valve 4 is closed to generate electricity and the power is supplied to the transmission system 3, the ocean wave hydraulic power generation ship The maintenance and replacement are convenient, the maintenance cost is low, the controllability is good, and the reliability is high.

5. The power generated by the ocean wave hydraulic power generation ship is transported to the shore through the underwater cable. If a strong typhoon is encountered, simply remove the cable and open the water outlet at the bottom of all the containers. After all the water in the container is drained, Transfer the ocean wave hydraulic power generation ship to the safe harbor to avoid the loss caused by the typhoon. After the strong typhoon, move the ocean wave hydraulic power generation ship to the original place and install the connector of the cable line. Therefore, the ocean wave hydraulic power generation ship is assembled and disassembled. Very convenient and very mobile.

6. The hull 1 can be installed with power generation system for power generation. Generally, the hull 1 with a load of about 30T or more is used. The power generation efficiency is high, the economic benefits are large, and the investment recovery is fast. For example, a length of about 30 meters and a width of 8 meters. The hull 11 has a buoyancy of 200-300 tons. The ship can be equipped with 10 sets of 300KW/h power generation system. The daily power generation time is calculated according to 20 hours. The power generation per day can reach 60,000 KW, and the annual power generation is 60,000*30*12= 21600000KW, the price per kWh is 0.4 yuan, and the annual output value is 8.64 million yuan. The input cost can be recovered within half a year. If a number of ocean wave hydraulic power generation vessels are installed along the coast, the annual power generation will be a very impressive number. The effective use of renewable resources has promoted the vigorous development of the environmental protection cause, and is a blue channel for the coastal areas to “sustainable marine development”.

The above is only a specific embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily think of changes or substitutions within the technical scope of the present disclosure. All should be covered by the scope of the present invention. Therefore, the scope of the invention should be determined by the scope of the appended claims.

Claims

An ocean wave hydraulic power generation ship comprising a hull, a power generation system and a power transmission system, the power generation system being fixed on the hull, the power generation system being connected to the power transmission system, wherein the power generation system comprises an input device a conversion device and a power generation device, the input device being connected to the conversion device, the conversion device driving the power generation device to generate electricity; the conversion device being a hydraulic ram, the input device comprising two counterweights, a rotating cylinder And two power output ends, the two weights being fixed at two ends of the drum by a rope or a chain, and one of the two power output ends drives the piston of the hydraulic jack to compress Movement, the other of the two power output terminals drives the piston of the hydraulic ram to perform lifting motion.
A marine wave hydraulic power generating ship according to claim 1, wherein said ocean wave hydraulic power generating ship is provided with a plurality of power generating systems, and between each of said plurality of power generating systems and said power transmitting system The switch valve is separately provided on the line.
A marine wave hydraulic power generating ship according to claim 1, wherein said hydraulic ram includes two closed upper and lower chambers, and said upper chamber and said lower chamber are respectively provided with Port and oil outlet.
A marine wave hydraulic power generating ship according to claim 1, wherein said input means further comprises a pulley block, a beam, a slide cylinder and a slide rail, said beam being coupled to a piston of said hydraulic ram, said beam Two ends are fixed on the sliding cylinder, the sliding cylinder is mounted on the sliding rail, and two power output ends of the input device are respectively connected to the cross beam through the pulley block.
A marine wave hydraulic power generating ship according to claim 3, wherein said power generating means comprises an accumulator, a hydraulic motor and a generator, and said oil outlets of said upper chamber and said lower chamber are said An accumulator is coupled, the accumulator driving the hydraulic motor to rotate, the hydraulic motor driving the generator to rotate through a coupling.
The marine wave hydraulic power generating ship according to claim 3, wherein the oil inlet port and the oil outlet port of the upper chamber and the lower chamber are both provided with one-way valves.
A marine wave hydraulic power generating ship according to claim 4, wherein the piston of said hydraulic ram is connected to the center of said beam by a hinge.
A marine wave hydraulic power generating ship according to claim 5, wherein a flow control valve is provided on the pipe between the accumulator and the hydraulic motor.
A marine wave hydraulic power generating ship according to any one of claims 1 to 8, wherein said two weights are two containers, and said container is filled with water.
A marine wave hydraulic power generating ship according to claim 9, wherein said two containers have a weight ratio of 2:1, and wherein the heavy-weight container is fixed to the side of said hull by a fixed pulley.