CN217841885U

CN217841885U - Wave energy power generation device based on hose type hydraulic conversion system

Info

Publication number: CN217841885U
Application number: CN202222293374.XU
Authority: CN
Inventors: 李蒙; 王海峰; 崔琳; 汪小勇; 方芳
Original assignee: National Ocean Technology Center
Current assignee: National Ocean Technology Center
Priority date: 2022-08-30
Filing date: 2022-08-30
Publication date: 2022-11-18
Anticipated expiration: 2032-08-30

Abstract

The utility model provides a wave energy power generation facility based on hose formula hydraulic pressure conversion system, including capture system, medium conversion system, power generation system and support frame, support frame fixed mounting bank is basic, and sets up capture system on the support frame, and capture system's one end sets up on the surface of water, and capture system's the fixed cover of the other end connects to medium conversion system, and capture system is used for capturing the unrestrained potential energy, and the unrestrained potential energy of water is converted into the medium energy through medium conversion system, the medium energy is converted into electric power through power generation system, and power generation system, medium conversion system are fixed mounting to support frame or bank respectively on the basis. Wave energy power generation facility based on hose formula hydraulic pressure conversion system, device simple structure is compact, simple to operate need not to carry out marine installation and lays, the mountable is on multiple ocean engineering structures such as bank base or boats and ships, ocean platform.

Description

Wave energy power generation device based on hose type hydraulic conversion system

Technical Field

The utility model belongs to wave energy power generation field especially relates to a wave energy power generation facility based on hose formula hydraulic pressure conversion system.

Background

Wave energy is a specific form of ocean energy and is one of the most main energy sources in the ocean energy, the development and the utilization of the wave energy are very important for relieving energy crisis and reducing environmental pollution, and the wave energy power generation can be divided into an energy acquisition system and an energy conversion system. The collecting system is used for capturing wave energy, and the converting system is used for converting the captured wave energy into mechanical energy or electric energy in a specific form. It is composed of the following main parts: air impeller, low water head hydraulic turbine, hydraulic system, mechanical system and generator etc. prior art capture the subassembly because of the power generation damping is connected to one end, cause its other end to receive the wave to strike great, and life hands over the end, and when the wave impact force did not reach load, also can not drive capture the subassembly swing, the wave energy utilization ratio is lower.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a wave energy power generation facility based on hose formula hydraulic pressure conversion system to it is low to solve prior art wave energy utilization ratio, and catches the problem that the subassembly receives to strike greatly, and life is low.

In order to achieve the above purpose, the technical scheme of the utility model is realized like this:

a wave energy power generation device based on a hose type hydraulic conversion system comprises a capture system, a medium conversion system, a power generation system and a support frame, wherein the support frame is fixedly installed on a shore base, the capture system is arranged on the support frame, one end of the capture system is arranged on the water surface, the other end of the capture system is fixedly sleeved with the medium conversion system in a sleeved mode and used for capturing water wave potential energy, the water wave potential energy is converted into medium energy through the medium conversion system, the medium energy is converted into electric power through the power generation system, and the power generation system and the medium conversion system are fixedly installed on the support frame or the shore base respectively.

Furthermore, the trapping system comprises a rotating shaft and a floater which are respectively arranged at two ends of a swing arm, the floater floats on the water surface, one end of the swing arm is rotatably sleeved on the supporting frame through the rotating shaft, and the rotating end of the swing arm is fixedly sleeved on one end of the medium conversion system.

Further, the float comprises a floating upper part and a floating lower part which are integrated, the floating upper part is of a cylindrical structure, the lower end of the floating upper part is fixedly provided with the floating lower part, and the floating lower end is of a cone or round platform structure.

Furthermore, the medium conversion system comprises a box body, a scraper, a rubber hose, an oil tank and a medium pipeline, wherein the bottom of the box body is of an arc structure, the outer periphery of the rubber hose is fixed along the shape of the inner wall of the arc structure, the middle of the box body is rotatably sleeved with a center shaft, one end of the center shaft is fixedly connected to one end of a rotating shaft, the scraper is fixedly installed at the periphery of the center shaft, the floater moves up and down through water waves, the up-and-down moving floater drives the scraper to swing in an arc shape through a rocker arm, the rotating shaft and the center shaft sequentially, one end of the arc swinging scraper is extruded to the periphery of the rubber hose, the rubber hose is communicated to the oil tank through the medium pipeline, the oil tank is positioned above the rubber hose, oil is filled in the oil tank, the arc swinging scraper can drive the oil to move in the rubber hose and the medium pipeline, a power generation system is arranged on the medium pipeline, and the displaced oil is converted into electric power through the power generation system.

Furthermore, the periphery of the middle shaft is connected to the side wall of the box body through a framework sealing and sealing sleeve.

Further, the medium pipeline comprises a low-pressure loop, a high-pressure loop, a first pipe body, a second pipe body, a third pipe body, a fourth pipe body, a fifth pipe body and a sixth pipe body, one end of the first pipe body is communicated with one end of the rubber hose, the other end of the first pipe body is respectively communicated with one end of the third pipe body and one end of the fourth pipe body, the other end of the third pipe body is communicated with the first end of the high-pressure loop, the other end of the fourth pipe body is communicated with the first end of the low-pressure loop, the second end of the high-pressure loop and the second end of the low-pressure loop are respectively communicated with the oil tank, one end of the second pipe body is communicated with the other end of the rubber hose, the other end of the second pipe body communicates respectively to the first end of the fifth pipe body and the first end of the sixth pipe body, the second end of the fifth pipe body communicates to the first end of the low-pressure loop, the second end of the sixth pipe body communicates to the first end of the high-pressure loop, and the third pipe body, the fourth pipe body, the fifth pipe body and the sixth pipe body are respectively provided with a check valve, oil liquid sequentially passes through the first pipe body, the third pipe body is conducted to the high-pressure loop, oil liquid sequentially passes through the low-pressure loop, the fourth pipe body is conducted to the first pipe body, oil liquid sequentially passes through the second pipe body, the sixth pipe body is conducted to the high-pressure loop, oil liquid sequentially passes through the low-pressure loop, the fifth pipe body is conducted to the second pipe body, and the high-pressure loop is provided with a power generation system.

Furthermore, the power generation system comprises a hydraulic motor and a generator arranged at one end of the hydraulic motor, and the hydraulic motor is arranged on the high-voltage loop.

Furthermore, the second end of the high-pressure loop is communicated to one end of the seventh pipe body and one end of the eighth pipe body respectively, the other end of the seventh pipe body and the other end of the eighth pipe body are communicated to the oil tank respectively, an overflow valve is arranged on the seventh pipe body, a throttle valve is arranged on the eighth pipe body, and medium under pressure in the high-pressure loop flows into the hydraulic motor through the throttle valve.

Further, an energy accumulator is arranged on the high-pressure loop.

Compared with the prior art, wave energy power generation facility based on hose formula hydraulic pressure conversion system have following beneficial effect:

(1) Wave energy power generation facility based on hose formula hydraulic pressure conversion system, device simple structure is compact, simple to operate need not to carry out marine installation and lays, the mountable is on multiple ocean engineering structures such as bank base or boats and ships, ocean platform.

(2) The wave energy power generation device based on the hose type hydraulic conversion system has the advantages that the wave energy is converted into the rotational kinetic energy by the capture system, the rotational kinetic energy is directly converted into the hydraulic energy by the hose type hydraulic conversion system, the conversion efficiency is high, the stability is strong, and the starting pressure is small compared with the traditional hydraulic cylinder type hydraulic conversion system; the modularized design can be matched with other rotating wave energy capturing systems (such as swinging type and nodding duck type), and the near-shore surge phenomenon increases the wave energy captured by the device.

(3) The wave energy power generation device based on the hose type hydraulic conversion system has high reliability, the device is less influenced by wave impact force, the safety is high, the hydraulic conversion system is arranged on the shore, is not in direct contact with seawater, is less influenced by corrosion and is not impacted by wave force; the full seal structure avoids seawater splashing, corrodes the inside, also avoids revealing because of inside hydraulic oil and causes environmental pollution.

Drawings

The accompanying drawings, which form a part hereof, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention without undue limitation. In the drawings:

fig. 1 is a schematic side view of a wave energy power generation device based on a hose type hydraulic conversion system according to an embodiment of the present invention;

fig. 2 is a schematic structural diagram of a wave energy power generation device based on a hose type hydraulic conversion system according to an embodiment of the present invention;

fig. 3 is a schematic cross-sectional structure diagram of a media conversion system according to an embodiment of the present invention;

fig. 4 is a schematic diagram of a hydraulic power generation according to an embodiment of the present invention.

Description of reference numerals:

1-a capture system; 11-a rotating shaft; 12-a float; 121-upper part of float; 122-the lower part of the float; 13-swing arm; 2-a media conversion system; 21-a box body; 22-a scraper; 23-a rubber hose; 24-a fuel tank; 25-a medium line; 251-a low-pressure loop; 252-high pressure loop; 253-a first tube; 254-a second tube; 255-a third tube; 256-a fourth tube; 257-fifth tube; 258-sixth tube; 259-seventh tube; 2510-an eighth tube; 26-medial axis; 27-an accumulator; 28-a throttle valve; 29-relief valve; 3-a power generation system; 31-a hydraulic motor; 32-a generator; 4-shore-based; 5-a support frame.

Detailed Description

It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore, are not to be construed as limiting the present invention. Furthermore, the terms "first", "second", etc. are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first," "second," etc. may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected" and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art through specific situations.

The present invention will be described in detail below with reference to the accompanying drawings in conjunction with embodiments.

As shown in fig. 1-4, the wave energy power generation device based on the hose type hydraulic conversion system includes a capture system 1, a medium conversion system 2, a power generation system 3 and a support frame 5, the support frame 5 is fixedly installed on a shore base 4, the support frame 5 is provided with the capture system 1, one end of the capture system 1 is arranged on the water surface, the other end of the capture system 1 is fixedly sleeved on the medium conversion system 2, the capture system 1 is used for capturing the water wave potential energy, the water wave potential energy is converted into the medium energy through the medium conversion system 2, the medium energy is converted into the electric power through the power generation system 3, the power generation system 3 and the medium conversion system 2 are respectively and fixedly installed on the support frame 5 or the shore base 4, the device has a simple and compact structure, is convenient to install, does not need to be installed and laid, and can be installed on various ocean engineering structures such as a shore base 4 or a ship and an ocean platform.

The capture system 1 comprises a rotating shaft 11 and a floater 12 which are respectively arranged at two ends of a swing arm 13, the floater 12 floats on the water surface, one end of the swing arm 13 is rotatably sleeved on the support frame 5 through the rotating shaft 11, and the rotating end of the swing arm is fixedly sleeved on one end of the medium conversion system 2.

The float 12 includes a floating upper portion and a floating lower portion of an integrated structure, the floating upper portion is of a cylindrical structure, the lower end of the floating upper portion is fixedly provided with the floating lower portion, and the floating lower portion is of a conical or truncated cone structure.

The medium conversion system 2 comprises a box body 21, a scraper 22, a rubber hose 23, an oil tank 24 and a medium pipeline 25, wherein the bottom of the box body 21 is of an arc structure, the periphery of the rubber hose 23 is fixed along the inner wall of the arc structure in a shape following manner, the middle part of the box body 21 is rotatably sleeved with a middle shaft 26, one end of the middle shaft 26 is fixedly connected to one end of a rotating shaft 11, the scraper 22 is fixedly installed at the periphery of the middle shaft 26, a floater 12 moves up and down through water waves, the up-and-down moving floater 12 sequentially passes through a rocker arm, the rotating shaft 11 and the middle shaft 26 to drive the scraper 22 to swing in an arc manner, one end of the arc swinging scraper 22 is extruded to the periphery of the rubber hose 23, the rubber hose 23 is communicated to the oil tank 24 through the medium pipeline 25, the oil tank 24 is positioned above the rubber hose 23, the oil tank 24 is filled with oil, the arc swinging scraper 22 can drive the oil to move in the rubber hose 23 and the medium pipeline 25, the medium pipeline 25 is provided with a power generation system 3, the displaced oil is converted into electric power through the power generation system 3, the wave energy is converted into rotational kinetic energy by the capture system 1, the hose type hydraulic conversion system directly converts the rotational kinetic energy into hydraulic energy, the conversion efficiency is high, the stability is high, and the pressure conversion system is high compared with the traditional hydraulic conversion system, and the pressure conversion system is small pressure conversion system; the modularized design can be matched with other rotating wave energy capturing systems 1 (such as pendulum type and nodding duck type), and the near-shore surge phenomenon increases the wave energy captured by the device.

The box body 21 is a sealing structure, the periphery of the middle shaft 26 is connected to the side wall of the box body 21 through a framework sealing sleeve, the device has high reliability, the device is less influenced by wave impact force and high in safety, and the hydraulic conversion system is arranged on the shore, is not in direct contact with seawater, is less influenced by corrosion and is not impacted by wave force; the full-sealing structure avoids seawater splashing, corrodes the inside and also avoids causing environmental pollution due to leakage of the inside hydraulic oil.

The medium line 25 includes a low pressure circuit 251, a high pressure circuit 252, a first pipe 253, a second pipe 254, a third pipe 255, a fourth pipe 256, a fifth pipe 257, and a sixth pipe 258, one end of the first pipe 253 is connected to one end of the rubber hose 23, the other end of the first pipe 253 is connected to one end of the third pipe 255 and one end of the fourth pipe 256, respectively, the other end of the third pipe 255 is connected to the first end of the high pressure circuit 252, the other end of the fourth pipe 256 is connected to the first end of the low pressure circuit 251, the second end of the high pressure circuit 252 and the second end of the low pressure circuit 251 are connected to the oil tank 24, respectively, one end of the second pipe 254 is connected to the other end of the rubber hose 23, the other end of the second pipe 254 is connected to the first end of the fifth pipe 257 and the first end of the sixth pipe 258, respectively, the second end of the fifth pipe 257 is connected to the first end of the low pressure circuit 251, the second end of the sixth pipe 258 is communicated to the first end of the high-pressure loop 252, the third pipe 255, the fourth pipe 256, the fifth pipe 257 and the sixth pipe 258 are respectively provided with a one-way valve, oil is conducted to the high-pressure loop 252 sequentially through the first pipe 253 and the third pipe 255, the oil is conducted to the first pipe 253 sequentially through the low-pressure loop 251 and the fourth pipe 256, the oil is conducted to the high-pressure loop 252 sequentially through the second pipe 254 and the sixth pipe 258, the oil is conducted to the second pipe 254 sequentially through the low-pressure loop 251 and the fifth pipe 257, the high-pressure loop 252 is provided with the power generation system 3, the one-way valve is used for ensuring a medium passage under pressure in the hydraulic conversion system, the oil is discharged when the scraper 22 extrudes the rubber hose 23 forwards, the oil is sucked when the rubber hose 23 behind the scraper 22 forms a cavity, the hydraulic oil is always flowed to one direction in the hydraulic loop, the function of the one-way valve is that the flow direction of the hydraulic circuit is always kept consistent no matter whether the oil outlet absorbs oil or discharges oil.

The power generation system 3 comprises a hydraulic motor 31 and a generator 32 arranged at one end of the hydraulic motor 31, the hydraulic motor 31 is arranged on a high-pressure loop 252, the hydraulic motor 31 is connected with the generator 32, when the hydraulic motor 31 rotates, the generator 32 is driven to rotate to generate power, the hydraulic motor 31 and the generator 32 are in the prior art, an energy accumulator 27 is arranged on the high-pressure loop 252, the energy accumulator 27 is a leather bag type energy accumulator 27 in the prior art, the energy accumulator 27 is used for ensuring the pressure of a medium flowing to the hydraulic motor 31 from the high-pressure loop 252, and when the oil pressure of the high-pressure loop 252 is insufficient, oil enters the high-pressure energy accumulator 27 to be stored; when the oil pressure is increased to a certain degree, the pressure control valve of the high-pressure accumulator 27 is opened, oil is output from the high-pressure accumulator 27 to drive the hydraulic motor 31, the second end of the high-pressure loop 252 is respectively communicated with one end of the seventh pipe 259 and one end of the eighth pipe 2510, the other end of the seventh pipe 259 and the other end of the eighth pipe 2510 are respectively communicated with the oil tank 24, a throttle valve 28 is arranged on the eighth pipe 2510, the throttle valve 28 is used for limiting the medium pressure of the high-pressure loop 252, a relief valve 29 is arranged on the seventh pipe 259, the relief valve 29 is used for relieving the overload medium pressure of the high-pressure loop 252, and the medium with pressure in the high-pressure loop 252 flows into the hydraulic motor 31 through the throttle valve 28.

The working principle of the wave energy power generation device based on the hose type hydraulic conversion system is as follows:

in an initial state, the device is integrally mounted on the support frame 5, the swing arm 13 extends outwards, the floater 12 at the tail end floats on the sea surface and is at a middle water level, the rotary table is vertically downward, the scraper 22 is at the lowest point of the box body 21, the floater 12 moves up and down along with waves under the action of the waves, the swing arm 13 swings back and forth around an axis, the scraper 22 is driven by the rotary shaft 11 and the middle shaft 26 in sequence to swing in an arc shape, the tail end of the scraper 22 makes a circular back and forth motion, the hose is squeezed, oil is discharged from the rubber hose 23 as shown in fig. 3 and 4, when the scraper 22 rotates left, the hose is squeezed, the oil is discharged from the first pipe body 253, enters the high-pressure loop 252, and then enters the energy accumulator 27 for energy accumulation. After the pressure is increased to a certain degree, the pressure control valve of the energy accumulator 27 is opened, and the oil passes through the throttle valve 28 to drive the hydraulic motor 31 to rotate and then returns to the oil tank 24; the hydraulic motor 31 drives the generator 32 to generate electricity, the hose on the right of the scraper 22 generates vacuum, oil in the oil tank 24 is fed into the rubber hose 23 through the low-pressure loop 251 and the second pipe 254, the hydraulic loop always keeps single flow no matter the turntable turns left or turns right, when the pressure of the hydraulic loop is too high, the overflow valve 29 is opened, and the hydraulic oil directly returns to the oil tank 24 through the overflow valve 29 to protect the hydraulic loop from being impacted.

The above description is only a preferred embodiment of the present invention, and should not be taken as limiting the invention, and any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. Wave energy power generation facility based on hose formula hydraulic pressure conversion system, its characterized in that: the system comprises a capture system (1), a medium conversion system (2), a power generation system (3) and a support frame (5), wherein the support frame (5) is fixedly installed on a shore base (4), the capture system (1) is arranged on the support frame (5), one end of the capture system (1) is arranged on the water surface, the other end of the capture system (1) is fixedly sleeved on the medium conversion system (2), the capture system (1) is used for capturing water wave potential energy, the water wave potential energy is converted into medium energy through the medium conversion system (2), the medium energy is converted into electric power through the power generation system (3), and the power generation system (3) and the medium conversion system (2) are respectively and fixedly installed on the support frame (5) or the shore base (4).

2. The wave energy generation device based on the hose-type hydraulic conversion system according to claim 1, characterized in that: capture system (1) includes pivot (11) and float (12) that swing arm (13) both ends were installed respectively, and float (12) float on the surface of water, and the one end of swing arm (13) rotates through pivot (11) and cup joints to support frame (5) on, and the fixed one end of cup jointing to the one end of medium conversion system (2) of pivoted.

3. The flexible pipe type hydraulic conversion system based wave energy power generation device according to claim 2, characterized in that: the floater (12) comprises a floating upper part and a floating lower part which are integrated into a whole, wherein the floating upper part is of a cylindrical structure, the floating lower part is fixedly arranged at the lower end of the floating upper part, and the floating lower end is of a conical or circular truncated cone structure.

4. The hose type hydraulic conversion system based wave energy power generation device of claim 1, characterized in that: the medium conversion system (2) comprises a box body (21), a scraper (22), a rubber hose (23), an oil tank (24) and a medium pipeline (25), wherein the bottom of the box body (21) is of an arc-shaped structure, the periphery of the rubber hose (23) is fixed along the inner wall of the arc-shaped structure in a shape-following manner, the middle part of the box body (21) is rotatably sleeved with a middle shaft (26), one end of the middle shaft (26) is fixedly connected to one end of a rotating shaft (11), the scraper (22) is fixedly installed on the periphery of the middle shaft (26), a floater (12) moves up and down through water waves, the floater (12) moving up and down sequentially passes through a rocker arm, the rotating shaft (11) and the middle shaft (26) to drive the scraper (22) to swing in an arc shape, one end of the arc-shaped swinging scraper (22) is extruded to the periphery of the rubber hose (23), the rubber hose (23) is communicated to the oil tank (24) through the medium pipeline (25), the oil tank (24) is located above the rubber hose (23), the oil tank (24) is filled with oil, the oil can drive the oil to move in the rubber hose (23), the oil tank (25) and the electricity generation system (3) is converted into an electricity generation system (3).

5. The hose type hydraulic conversion system based wave energy power generation device of claim 4, wherein: the medium line (25) includes a low pressure circuit (251), a high pressure circuit (252), a first pipe (253), a second pipe (254), a third pipe (255), a fourth pipe (256), a fifth pipe (257) and a sixth pipe (258), one end of the first pipe (253) is connected to one end of the rubber hose (23), the other end of the first pipe (253) is connected to one end of the third pipe (255) and one end of the fourth pipe (256), respectively, the other end of the third pipe (255) is connected to a first end of the high pressure circuit (252), the other end of the fourth pipe (256) is connected to a first end of the low pressure circuit (251), the second end of the high pressure circuit (252) and the second end of the low pressure circuit (251) are connected to the oil tank (24), respectively, one end of the second pipe (254) is connected to the other end of the rubber hose (23), the other end of the second pipe (254) is connected to the first end of the fifth pipe (257) and the first end of the sixth pipe (258), respectively, the second end of the fifth pipe (257) is connected to one end of the sixth pipe (255), the fourth pipe (258), and the one-way valve (257) are provided, fluid loops through first body (253), third body (255) switches on to high-pressure circuit (252), fluid loops through low pressure return circuit (251), fourth body (256) switches on to first body (253), fluid loops through second body (254), sixth body (258) switches on to high-pressure return circuit (252), fluid loops through low pressure return circuit (251), fifth body (257) switches on to second body (254), set up power generation system (3) on high-pressure return circuit (252).

6. The hose type hydraulic conversion system based wave energy power generation device of claim 5, wherein: the power generation system (3) comprises a hydraulic motor (31) and a generator (32) arranged at one end of the hydraulic motor, and the hydraulic motor (31) is arranged on the high-pressure loop (252).

7. The wave energy generation device based on the hose-type hydraulic conversion system according to claim 6, characterized in that: the second end of the high-pressure loop (252) is communicated with one end of a seventh pipe body (259) and one end of an eighth pipe body (2510) respectively, the other end of the seventh pipe body (259) and the other end of the eighth pipe body (2510) are communicated with an oil tank (24) respectively, an overflow valve (29) is arranged on the seventh pipe body (259), a throttle valve (28) is arranged on the eighth pipe body (2510), and medium under pressure in the high-pressure loop (252) flows into the hydraulic motor (31) through the throttle valve (28).

8. The flexible pipe type hydraulic conversion system based wave energy power generation device according to claim 6, characterized in that: an accumulator (27) is provided in the high-pressure circuit (252).