CN209838585U - Ocean energy collection device and power generation device - Google Patents
Ocean energy collection device and power generation device Download PDFInfo
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- CN209838585U CN209838585U CN201920376060.1U CN201920376060U CN209838585U CN 209838585 U CN209838585 U CN 209838585U CN 201920376060 U CN201920376060 U CN 201920376060U CN 209838585 U CN209838585 U CN 209838585U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/30—Energy from the sea, e.g. using wave energy or salinity gradient
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Abstract
The utility model discloses a marine energy collection device and a power generation device, wherein the marine energy collection device comprises a floating body, a hydraulic cylinder, a gravity balance block, a positioning device and a mooring rope; the hydraulic cylinder comprises a piston rod; the gravity balance block is fixedly connected with the piston rod and used for driving the piston rod to do work; one end of the mooring rope is connected with the gravity balance block, and the other end of the mooring rope is connected with the floating body through a plurality of positioning devices and universal connectors in sequence. The power generation device comprises an ocean energy collecting device, a hydraulic system and a power generator, wherein the hydraulic system comprises a main oil way, and the main oil way comprises an oil tank and a hydraulic motor used for driving the power generator. The ocean wave energy and the tidal energy in the ocean energy can be collected simultaneously, the tidal barrage is not required to be built to utilize the tidal energy, the utilization of the tidal energy is not limited by the tide, and the utilization efficiency of the ocean energy is improved.
Description
Technical Field
The utility model relates to a power generation facility, in particular to ocean energy collection system and power generation facility.
Background
The ocean energy generally refers to renewable green clean natural energy stored in the ocean, and mainly comprises tidal energy, wave energy, ocean current energy (tidal current energy), seawater temperature difference energy, seawater salt difference energy and the like. In the prior art, a tidal power station built with a tidal barrage generates electricity and utilizes tidal energy, but the tidal power station has great influence on the environment, and can change not only tidal range and tidal current, but also seawater temperature and water quality.
In addition, the sea wave energy is used as the kinetic energy of the sea water, the utilization of the sea wave energy is not influenced by weather factors, the energy density is high, the distribution is wide, and the stored energy is huge. The representative wave power generation devices in the world are divided into three types according to the working principle: oscillating water columns (oscillating water columns), oscillating floats (oscillating disks) and overtopping (overtopping). However, various current wave power generation devices have some disadvantages: the float is installed on a fixed platform in the sea, the floating stroke of the float is limited by tide, and the power generation efficiency is influenced.
How to avoid the above disadvantages of the tidal power generation device and the wave power generation device in the prior art and provide a power generation device capable of simultaneously utilizing tidal power and wave power becomes a problem to be solved urgently.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the one of the technical problem who exists among the prior art is solved at least to the aim at of first aspect, provides an ocean energy collection system and power generation facility, can gather the wave energy and the tidal energy in the ocean energy simultaneously.
According to the utility model discloses an aspect provides a marine energy collection system, include:
a float;
the hydraulic cylinder comprises a piston rod;
the gravity balance block is fixedly connected with the piston rod and is used for driving the piston rod to do work;
a positioning device;
a universal connector;
one end of the mooring rope is connected with the gravity balance block, and the other end of the mooring rope is connected with the floating body through a plurality of positioning devices and universal connectors in sequence.
Has the advantages that: the body that floats on the sea water fluctuates along with the promotion of wave or morning and evening tides to acquire the mechanical energy of wave or morning and evening tides, when sea height rises (the body moves or rises the tide from the trough of wave to the crest promptly), the body that has acquired the mechanical energy pulls the gravity balancing piece of the other end through mooring rope and upwards promotes the height, the gravity balancing piece has not only promoted self potential energy and has driven the piston rod rebound do work and convert mechanical energy into hydraulic energy when promoting height, when sea height descends (the body department moves or falls the tide from the crest of wave to the trough promptly), the gravity balancing piece drives the piston rod rebound work and converts self potential energy into hydraulic energy under the action of gravity. Therefore, the wave energy and the tidal energy in the ocean energy can be collected simultaneously, the tidal barrage is not required to be built to utilize the tidal energy, the utilization of the wave energy is not limited by the tide, and the utilization efficiency of the ocean energy is improved.
According to a first aspect of the invention, the positioning device comprises a pulley arranged in the path of the mooring line. The positioning device is used for restraining a path through which the mooring rope passes, and the pulley is used as the positioning device, so that the friction force between the mooring rope and the pulley can be reduced, the loss of energy in transmission is reduced, the utilization rate of ocean energy is improved, meanwhile, the abrasion of the mooring rope and the pulley can be reduced, and the durability is improved.
According to the utility model discloses the first aspect, universal connector is including installation base, fixing base and leading wheel, fixing base and installation base swing joint, the leading wheel rotates with the fixing base to be connected, the leading wheel surface is equipped with the recess, the mooring rope wear wind in the recess. The installation base is fixedly installed on the seabed below the floating body, the mooring rope penetrates through the groove of the guide wheel, and the fixed base is movably connected with the installation base, so that the kinetic energy of sea waves in different directions can be collected by the floating body connected to one end of the mooring rope, and the utilization efficiency of the sea energy is improved.
According to the first aspect of the present invention, the mooring rope is wrapped around the seabed pipeline, and the seabed pipeline is arranged along the path that the mooring rope passes through. The pulley and the mooring rope threaded on the pulley are protected through the protective pipeline, so that the collision and damage of marine organisms are avoided, the service life is prolonged, and the maintenance is convenient.
According to the utility model discloses a second aspect provides a power generation device, include like the first aspect a ocean energy collection system, hydraulic system and generator, hydraulic system includes the main oil way, the main oil way includes the oil tank and is used for the drive the hydraulic motor of generator, the oil feed way of main oil way is including the oil feed port that leads to of the pneumatic cylinder that communicates in proper order, hydraulic motor's oil feed end, the oil feed way of main oil way is including the oil return end of the hydraulic motor that communicates in proper order, the oil feed port of oil tank, pneumatic cylinder.
Has the advantages that: the sea wave or tide drives the floating body to float up and down, the kinetic energy of the floating body is transferred to the gravity balance block through the mooring rope, the gravity balance block drives a piston rod of the hydraulic cylinder to do work, hydraulic oil pumped out by the hydraulic cylinder drives the hydraulic motor to rotate, and the hydraulic motor drives the generator to work to realize power generation. Because the ocean energy collecting device is connected to the piston rod of the hydraulic cylinder through the mooring cable and the gravity balance block, a hydraulic system and a generator for converting hydraulic energy into mechanical energy for driving the generator to generate electricity can be arranged on the land, so that the pollution of leakage of hydraulic oil to the ocean is avoided, and meanwhile, the generator is arranged on the land, so that the generated electric power can be conveniently transmitted to a power grid; and the hydraulic system, the generator and other equipment are arranged on the land, so that the seawater corrosion can be avoided, and the equipment is convenient to maintain.
According to the utility model discloses the second aspect, still include first check valve, second check valve, the pneumatic cylinder is double-acting formula pneumatic cylinder, double-acting formula pneumatic cylinder has two lead to the hydraulic fluid port, two lead to through respectively through two between the oil feed end of hydraulic fluid port and hydraulic motor first check valve intercommunication, oil tank and two lead to through two between the hydraulic fluid port the second check valve intercommunication. The double-acting hydraulic cylinder is provided with two oil through ports, hydraulic oil is communicated with two cavities of an upper cavity and a lower cavity of the double-acting hydraulic cylinder through the two oil through ports, when a floating body moves to a wave crest or tide rise from a wave trough of sea waves, the floating body pulls a gravity balance block to lift potential energy through a mooring rope, meanwhile, the gravity balance block drives a piston rod to move upwards to do work to discharge the hydraulic oil in the upper cavity of the double-acting hydraulic cylinder from the corresponding oil through port, the hydraulic oil enters an oil inlet path of a main oil path through a first check valve to drive a hydraulic motor to do work, at the moment, the volume of the lower cavity of the double-acting hydraulic cylinder is increased, and the hydraulic oil in the oil tank enters an oil return path of the main oil. Similarly, when the floating body moves to a wave trough or falls tide from a wave crest, hydraulic oil is discharged from the lower cavity and enters the oil inlet path of the main oil path through the first one-way valve to drive the hydraulic motor, and meanwhile, the hydraulic oil enters the oil return path of the main oil path from the oil tank through the second one-way valve to be supplemented into the upper cavity of the double-acting hydraulic cylinder. The double-acting hydraulic cylinder is connected with the main oil way through the first one-way valve and the second one-way valve, the kinetic energy generated when the floating body ascends and descends and the kinetic energy generated when the floating body rises and falls tide can be simultaneously utilized for generating electricity, and the utilization efficiency of the wave energy and the tidal energy is improved.
According to the utility model discloses the second aspect, hydraulic system is still including energy storage ware and choke valve, energy storage ware and choke valve are connected between logical hydraulic fluid port and the hydraulic motor on the oil feed way of main oil circuit. Kinetic energy carried by hydraulic oil discharged from the hydraulic cylinder is unstable, is input into the energy accumulator firstly, flows to the hydraulic motor after being buffered and regulated, pushes the hydraulic motor to do work, and can improve the stability of the hydraulic motor during rotation and the stability of the working state of the generator.
According to the utility model discloses the second aspect, hydraulic system still includes the parallelly connected decompression branch road with hydraulic motor, the decompression branch road is including manometer, the overflow valve that connects gradually. When the sea waves or tides are too violent in a certain time interval, so that the kinetic energy generated by the floating body in the certain time interval is too large, the pressure fluctuation generated by the hydraulic oil discharged from the hydraulic cylinder to the oil inlet way of the main oil way possibly exceeds the adjusting range of the energy accumulator, and at the moment, the pressure reducing branch returns the hydraulic oil to the oil tank through the overflow valve to carry out pressure relief.
According to the utility model discloses in the second aspect, the oil return way of main oil circuit still includes the oil filter, the oil filter is connected between oil tank and the logical oil mouth on the oil return way of main oil circuit. In order to enhance the operation stability of the hydraulic system, an oil filter is arranged to filter impurities, so that the oil way is prevented from being blocked.
Drawings
The present invention will be further described with reference to the accompanying drawings and examples;
fig. 1 is a schematic structural diagram of an embodiment of the ocean energy collecting device of the present invention;
FIG. 2 is an enlarged view taken at A in FIG. 1;
FIG. 3 is an enlarged view at B of FIG. 1;
fig. 4 is a schematic structural view of the universal connector of the ocean energy collecting device of the present invention;
fig. 5 is a schematic diagram of a hydraulic system according to an embodiment of the power generation apparatus of the present invention;
in the figure, 110-sea, 120-land, 200-double-acting hydraulic cylinder, 210-piston rod, 220-piston, 230-upper chamber, 240-lower chamber, 300-gravity balance block, 400-pulley, 410-mooring cable, 500-floating body, 600-mounting base, 610-fixing base, 620-guide wheel, 621-groove, 710-first check valve, 720-accumulator, 730-throttle valve, 740-hydraulic motor, 750-generator, 810-oil tank, 820-oil filter, 830-second check valve, 910-pressure gauge and 920-overflow valve.
Detailed Description
This section will describe in detail the embodiments of the present invention, preferred embodiments of the present invention are shown in the attached drawings, which are used to supplement the description of the text part of the specification with figures, so that one can intuitively and vividly understand each technical feature and the whole technical solution of the present invention, but they cannot be understood as the limitation of the protection scope of the present invention.
In the description of the present invention, it should be understood that the orientation or positional relationship indicated with respect to the orientation description, such as up, down, front, rear, left, right, etc., is based on the orientation or positional relationship shown in the drawings, and is only for convenience of description and simplification of description, and does not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention.
In the description of the present invention, a plurality of means are one or more, a plurality of means are two or more, and the terms greater than, less than, exceeding, etc. are understood as not including the number, and the terms greater than, less than, within, etc. are understood as including the number. If the first and second are described for the purpose of distinguishing technical features, they are not to be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated or implicitly indicating the precedence of the technical features indicated.
In the description of the present invention, unless there is an explicit limitation, the words such as setting, installation, connection, etc. should be understood in a broad sense, and those skilled in the art can reasonably determine the specific meanings of the above words in combination with the specific contents of the technical solution.
Referring to fig. 1 to 3, the present embodiment provides an ocean energy harvesting device, including a floating body 500, a hydraulic cylinder, a gravity balance 300, a positioning device, and a mooring line 410; the floating body 500 is used for acquiring the kinetic energy of the seawater, the floating body 500 floats on the water surface, and when sea waves impact or rise and fall tide, the floating body 500 rises and falls along the water surface to convert the kinetic energy of the seawater into the kinetic energy of the seawater; the hydraulic cylinder comprises a piston rod 210, the hydraulic cylinder is vertically arranged and used for converting mechanical energy into hydraulic energy, and the piston rod 210 vertically moves up and down in a cavity of the hydraulic cylinder and is used for pushing hydraulic oil in the cavity to be discharged out of the hydraulic cylinder through an oil through hole of the hydraulic cylinder; the gravity balance block 300 is fixedly connected with the piston rod 210 and is used for driving the piston rod 210 to do work; in order to convert the wave energy and tidal energy acquired by the floating body 500 into hydraulic energy, one end of the mooring line 410 is connected to the gravity balance block 300, and the other end is connected to the floating body 500 through a plurality of positioning devices and universal connectors in sequence. The positioning device is used to determine the path trajectory that mooring line 410 follows, and mooring line 410 is threaded onto the positioning device to change the direction of the force on mooring line 410.
The working process is as follows: the floating body 500 floating on the sea water fluctuates up and down along with the push of the sea waves or tides, so as to obtain the mechanical energy of the sea waves or the tides, when the sea level rises (i.e. when the floating body 500 moves from the wave trough of the sea waves to the wave crest or rises in the tides), the floating body 500 obtaining the mechanical energy pulls the gravity balance block 300 at the other end to lift the height upwards through the mooring rope 410, the gravity balance block 300 not only lifts the potential energy of itself but also drives the piston rod 210 to move upwards to do work and convert the mechanical energy into hydraulic energy when the sea level falls (i.e. when the floating body 500 moves from the wave crest of the sea waves to the wave trough or falls in the tides), the gravity balance block 300 drives the piston rod 210 to move downwards to do work under the action of gravity and. Therefore, the wave energy and the tidal energy in the ocean energy can be collected simultaneously, the tidal barrage is not required to be built to utilize the tidal energy, the utilization of the wave energy is not limited by the tide, and the utilization efficiency of the ocean energy is improved.
As shown in fig. 1, on the basis of the above embodiment, the positioning device comprises a pulley 400 arranged on the path of the passage of the mooring line 410. The positioning device is used for restraining the path of the mooring cable 410, and the pulley 400 is used as the positioning device, so that the friction force between the mooring cable 410 and the pulley 400 can be reduced, the loss of energy in transmission is reduced, the utilization rate of ocean energy is improved, meanwhile, the abrasion of the mooring cable 410 and the pulley 400 can be reduced, and the durability is improved. It should be noted that the positioning device is not limited to the pulley 400, and in order to implement the function of changing the direction of the mooring line 410 passing through the positioning device, the positioning device may also be a roller, and a concave position matching the thickness of the mooring line 410 is provided on the surface of the roller for the mooring line 410 to pass through, so as to define the position where the mooring line 410 contacts with the roller, avoid the mooring line 410 from falling off, and improve the stability.
As shown in fig. 3 and 4, on the basis of the above embodiment, the universal connector includes a mounting base 600, a fixing seat 610 and a guide wheel 620, the guide wheel is a pulley 400, the fixing seat 610 is movably connected with the mounting base 600, the guide wheel 620 is rotatably connected with the fixing seat 610, a groove 621 is formed on the surface of the guide wheel 620, and the mooring rope 410 is threaded in the groove 621. The fixing seat 610 and the installation base 600 may be hinged or rotatably connected, and if the fixing seat 610 and the installation base 600 are rotatably connected, the fixing seat 610 realizes that the rotating shaft is orthogonal to the rotating shaft of the wire guide wheel, and the two are matched to realize rotation with higher degree of freedom. The installation base 600 is fixedly installed on the seabed below the floating body 500, the mooring rope 410 is threaded in the groove 621 of the guide wheel 620, and the fixing base 610 is movably connected with the installation base 600, so that the floating body 500 connected to one end of the mooring rope 410 can collect the kinetic energy of sea waves in different directions, and the utilization efficiency of the ocean energy is improved. In addition, the purpose of the universal joint is to allow the float 500 to capture the kinetic energy of ocean waves in all directions,
alternatively, the universal connector may be implemented in other forms (not shown), for example, by providing a mounting base fixedly connected to the seabed, hinging a hollow pipe to the mounting base, wherein the hollow pipe can rotate in multiple degrees of freedom due to the hinging of the hollow pipe to the mounting base, and then passing one end of the mooring rope 410 through two ports of the hollow pipe and then fixedly connecting the floating body 500. The use of a wire guide wheel may minimize friction between mooring line 410 and the universal joint, improving durability.
Preferably, a subsea conduit (not shown) is included that wraps around the periphery of the mooring line 410 and is positioned along the path traveled by the mooring line 410. The pulley 400 and the mooring cable 410 threaded on the pulley 400 are protected by a protective pipe, so that the collision and damage of marine organisms are avoided, the service life is prolonged, and the maintenance is facilitated.
As shown in fig. 5, the following embodiment provides a power generation device, including the above-mentioned ocean energy collecting device, hydraulic system and generator 750, hydraulic system includes the main oil circuit, the main oil circuit includes oil tank 810 and is used for driving the hydraulic motor 740 of generator 750, the oil inlet of main oil circuit is including the oil mouth that leads to of the pneumatic cylinder that communicates in proper order, the oil feed end of hydraulic motor 740, the oil return of main oil circuit is including the oil return end of the hydraulic motor 740, oil tank 810, the oil mouth that leads to of the pneumatic cylinder that communicate in proper order.
Sea waves or tides drive the floating body 500 to float up and down, kinetic energy of the floating body 500 is transferred to the gravity balance block 300 through the mooring cable 410, the gravity balance block 300 drives the piston rod 210 of the hydraulic cylinder to do work, hydraulic oil pumped out by the hydraulic cylinder drives the hydraulic motor 740 to rotate, and the hydraulic motor 740 drives the generator 750 to work to generate electricity. Because the ocean energy collecting device is connected to the piston rod 210 of the hydraulic cylinder through the mooring cable 410 and the gravity balance block 300, both the hydraulic system for converting hydraulic energy into mechanical energy for driving the generator 750 to generate electricity and the generator 750 can be arranged on the land, thereby avoiding the pollution of leakage of hydraulic oil to the ocean, and meanwhile, the generator 750 is arranged on the land, thereby facilitating the transmission of the generated electric power to the power grid; and the hydraulic system, the generator 750 and other equipment are arranged on the land, so that the seawater corrosion can be avoided, and the equipment is convenient to maintain.
Preferably, the hydraulic cylinder is a double-acting hydraulic cylinder 200, the double-acting hydraulic cylinder 200 is provided with two oil through ports, the two oil through ports are communicated with the oil inlet end of the hydraulic motor 740 through the two first check valves 710 respectively, and the oil tank 810 is communicated with the two oil through ports through the two second check valves 830. The double-acting hydraulic cylinder 200 is provided with two oil through holes, hydraulic oil is communicated with two cavities, namely an upper cavity 230 and a lower cavity 240 of the double-acting hydraulic cylinder 200 through the two oil through holes, when the floating body 500 moves to a wave crest from a wave trough of sea waves or rises tide, the floating body 500 drives the gravity balance block 300 to lift potential energy through the mooring rope 410, meanwhile, the gravity balance block 300 drives the piston rod 210 to move upwards to do work, the hydraulic oil in the upper cavity 230 of the double-acting hydraulic cylinder 200 is discharged from the corresponding oil through hole, the hydraulic oil enters the oil inlet path of the main oil path through the first check valve 710 to drive the hydraulic motor 740 to do work, at the moment, the volume of the lower cavity 240 of the double-acting hydraulic cylinder 200 is increased, and the hydraulic oil in the oil tank 810 enters the oil return path of the main oil path through. Similarly, when the float 500 moves from a wave crest to a wave trough or falls into a tide, the hydraulic oil is discharged from the lower chamber 240 through the first check valve 710 into the oil feed passage of the main oil passage to drive the hydraulic motor 740, and at the same time, the hydraulic oil is replenished from the oil tank 810 through the oil return passage of the second check valve 830 into the main oil passage into the upper chamber 230 of the double-acting hydraulic cylinder 200. The connection between the double-acting hydraulic cylinder 200 and the main oil passage is realized through the first check valve 710 and the second check valve 830, the kinetic energy generated when the floating body 500 ascends and descends and the kinetic energy generated when the floating body rises and falls can be simultaneously utilized for generating electricity, and the utilization efficiency of the wave energy and the tidal energy is increased.
Preferably, the hydraulic system further comprises an accumulator 720 and a throttle valve 730, and the accumulator 720 and the throttle valve 730 are connected between an oil port on the oil inlet path of the main oil path and the hydraulic motor 740. Kinetic energy carried by hydraulic oil discharged from the hydraulic cylinder is unstable, is input into the energy accumulator 720, flows to the hydraulic motor 740 after being buffered and regulated, pushes the hydraulic motor 740 to do work, and can improve the stability of the hydraulic motor 740 in rotation and the stability of the working state of the generator 750.
Preferably, the hydraulic system further comprises a pressure reducing branch connected in parallel with the hydraulic motor 740, and the pressure reducing branch comprises a pressure gauge 910 and an overflow valve 920 which are connected in sequence. When the sea wave or tide is too violent in a certain time interval, so that the kinetic energy generated by the floating body 500 in the certain time interval is too large, the pressure gauge 910 is observed to find that the pressure fluctuation generated by the hydraulic oil discharged from the hydraulic cylinder to the oil inlet way of the main oil way exceeds the adjusting range of the energy accumulator 720, and at the moment, the pressure reducing branch is controlled to return the hydraulic oil to the oil tank 810 through the overflow valve 920 for pressure relief.
Preferably, the return line of the main line further includes an oil filter 820, and the oil filter 820 is connected between the oil tank 810 on the return line of the main line and the oil through port. In order to enhance the operation stability of the hydraulic system, an oil filter 820 is provided to filter impurities and avoid oil path blockage.
As shown in fig. 1 to 5, a preferred embodiment is provided, which provides a power generating apparatus capable of generating power by simultaneously using wave energy and tidal energy, comprising a marine energy harvesting device disposed on a sea 110 and capable of harvesting both wave energy and tidal energy, the marine energy harvesting device being used for converting harvested marine kinetic energy into hydraulic energy, the marine energy harvesting device comprising a floating body 500 floating on the sea surface, the floating body 500 being a hollow structure made of a marine glass fiber reinforced plastic material resistant to sea wave impact, a mounting base 600 fixedly connected to a seabed disposed below the floating body 500, a fixing base 610 rotatably connected to the mounting base 600, a guide wheel 620 rotatably connected to the fixing base 610, the guide wheel 620 being a pulley 400 having a groove 621 formed on a circumferential surface thereof, the groove 621 of the guide wheel 620 being matched with a size of a mooring line 410, and being designed to ensure that the mooring line 410 can only form a space between the groove 621 of the guide wheel 620 and the fixing base 610 And the mooring cable 410 is prevented from falling from the groove 621, the rotating shaft of the guide wheel 620 is orthogonal to the rotating shaft of the fixing seat 610, and the submarine pipeline is laid on the seabed, and a plurality of pulleys 400 are arranged in the submarine pipeline and extends from the seabed to the coast edge. A rope with high strength, good wear resistance and corrosion resistance is selected as a mooring cable 410, the mooring cable 410 is wound on the pulley 400 to form a pulley 400 group, one end of the mooring cable extends out of the submarine tunnel and is wound around a guide wheel 620 and fixedly connected with a floating body 500, the other end of the mooring cable is stretched to the sea shore to be connected with a gravity balance block 300 suspended in the air, the gravity balance block 300 is cast iron or other solid with the required weight, the structure needs to be a revolving body, and the center needs to be in the middle. Because the buoyancy received by the floating body 500 is vertically upward, and the gravity received by the gravity balance block 300 is vertically downward, in order to ensure that the mooring cable 410 is always in a tensioned state, so that the strokes of the gravity balance block 300 and the floating body 500 in air floatation are kept consistent, the gravity received by the gravity balance block 300 is required to be equal to the buoyancy received by the floating body 500 when the sea surface is calm (when the sea surface is defined to be calm, the height of the water level where the floating body 500 is located is the middle value of the wave crest water level and the wave trough water level). The gravity balance block 300 is fixedly connected to the piston rod 210 of the double-acting hydraulic cylinder 200, and the stroke of the piston rod 210 is consistent with the heave stroke of the floating body 500 because the gravity balance block 300 is consistent with the heave stroke of the floating body 500, so that the kinetic energy of the floating body 500 is converted into hydraulic energy.
Through foretell ocean energy collection system that can gather sea wave energy and tidal energy simultaneously, with ocean energy and tidal energy conversion for hydraulic energy, this power generation facility still includes and sets up and be used for converting hydraulic energy into mechanical energy hydraulic system and generator 750 on land 120, this hydraulic system includes main oil circuit and decompression branch road, and the main oil circuit is used for driving hydraulic motor 740 rotation with the hydraulic energy of the hydraulic oil of pneumatic cylinder exhaust, and generator 750 converts the mechanical energy of hydraulic motor 740 into the electric energy. The pressure reducing branch is used for relieving pressure of the main oil way, and the hydraulic system is prevented from being damaged due to overlarge impact.
The oil inlet path of the main oil path is as follows:
oil inlet of double-acting hydraulic cylinder 200, namely, first check valve 710, accumulator 720, throttle valve 730, and oil inlet of hydraulic motor 740
The oil return path of the main oil path is as follows:
the oil return end of the hydraulic motor 740, an oil tank 810, an oil filter 820, a second one-way valve 830, and an oil through port of the double-acting hydraulic cylinder 200
The pressure reduction branch is as follows:
oil inlet of double-acting hydraulic cylinder 200, first check valve 710, pressure gauge 910, overflow valve 920, oil tank 810
It should be noted that, the stroke of the hydraulic cylinder piston 220 and the mass of the gravity balance block 300 need to be selected according to the data of the sea water density, the wave height of the sea wave, the tide fall and the like of the corresponding sea area, so as to avoid that the stroke of the selected hydraulic cylinder piston 220 is too small, which causes that the residual stroke of the piston 220 is not enough to fully utilize the wave height of the sea wave energy when the sea rises, falls and tides.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (9)
1. An ocean energy harvesting device, comprising:
a float;
the hydraulic cylinder comprises a piston rod;
the gravity balance block is fixedly connected with the piston rod and is used for driving the piston rod to do work;
a positioning device;
a universal connector;
one end of the mooring rope is connected with the gravity balance block, and the other end of the mooring rope is connected with the floating body through a plurality of positioning devices and universal connectors in sequence.
2. A marine energy harvesting apparatus according to claim 1, wherein: the positioning device comprises a pulley arranged on the path of the mooring line.
3. A marine energy harvesting apparatus according to claim 1, wherein: the universal connector comprises an installation base, a fixed seat and a guide wheel, the fixed seat is movably connected with the installation base, the guide wheel is rotatably connected with the fixed seat, a groove is formed in the surface of the guide wheel, and the mooring rope is wound in the groove.
4. A marine energy harvesting apparatus according to claim 1, wherein: the mooring device also comprises a submarine pipeline wrapped on the periphery of the mooring cable, and the submarine pipeline is arranged along a path through which the mooring cable passes.
5. A power generation device, characterized by: the ocean energy collecting device, the hydraulic system and the generator according to any one of the claims 1 to 4, wherein the hydraulic system comprises a main oil circuit, the main oil circuit comprises an oil tank and a hydraulic motor for driving the generator, the oil inlet circuit of the main oil circuit comprises an oil through port of the hydraulic cylinder and an oil inlet port of the hydraulic motor which are sequentially communicated, and the oil return circuit of the main oil circuit comprises an oil return port of the hydraulic motor, the oil tank and an oil through port of the hydraulic cylinder which are sequentially communicated.
6. An apparatus for generating electricity according to claim 5, wherein: still include first check valve, second check valve, the pneumatic cylinder is two effect formula pneumatic cylinders, two effect formula pneumatic cylinder has two lead to the hydraulic fluid port, two lead to between the oil port and the hydraulic motor's the oil-feed end through two respectively first check valve intercommunication, oil tank and two lead to between the hydraulic fluid port through two second check valve intercommunication.
7. An apparatus for generating electricity according to claim 5, wherein: the hydraulic system also comprises an energy accumulator and a throttle valve, wherein the energy accumulator and the throttle valve are connected between an oil through hole on an oil inlet path of the main oil path and the hydraulic motor.
8. An apparatus for generating electricity according to claim 5, wherein: the hydraulic system further comprises a pressure reducing branch connected with the hydraulic motor in parallel, and the pressure reducing branch comprises a pressure gauge and an overflow valve which are connected in sequence.
9. An apparatus for generating electricity according to claim 5, wherein: the oil return path of the main oil path also comprises an oil filter, and the oil filter is connected between an oil tank on the oil return path of the main oil path and an oil through port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920376060.1U CN209838585U (en) | 2019-03-22 | 2019-03-22 | Ocean energy collection device and power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920376060.1U CN209838585U (en) | 2019-03-22 | 2019-03-22 | Ocean energy collection device and power generation device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209838585U true CN209838585U (en) | 2019-12-24 |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882346A (en) * | 2019-03-22 | 2019-06-14 | 五邑大学 | A kind of ocean energy acquisition device and power generator |
| CN112523925A (en) * | 2020-11-25 | 2021-03-19 | 奥尔森（镇江）电气机械有限公司 | Novel tidal power generation device |
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2019
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109882346A (en) * | 2019-03-22 | 2019-06-14 | 五邑大学 | A kind of ocean energy acquisition device and power generator |
| CN109882346B (en) * | 2019-03-22 | 2024-07-12 | 五邑大学 | Ocean energy acquisition device and power generation device |
| CN112523925A (en) * | 2020-11-25 | 2021-03-19 | 奥尔森（镇江）电气机械有限公司 | Novel tidal power generation device |
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Granted publication date: 20191224 Termination date: 20210322 |