CN115143021A - Buoyancy pendulum type wave power generation device - Google Patents
Buoyancy pendulum type wave power generation device Download PDFInfo
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- CN115143021A CN115143021A CN202210794850.8A CN202210794850A CN115143021A CN 115143021 A CN115143021 A CN 115143021A CN 202210794850 A CN202210794850 A CN 202210794850A CN 115143021 A CN115143021 A CN 115143021A
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- 238000010248 power generation Methods 0.000 title claims abstract description 45
- 230000007246 mechanism Effects 0.000 claims description 38
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- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 2
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1805—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem
- F03B13/181—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation
- F03B13/182—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom is hinged to the rem for limited rotation with a to-and-fro movement
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F03—MACHINES OR ENGINES FOR LIQUIDS; WIND, SPRING, OR WEIGHT MOTORS; PRODUCING MECHANICAL POWER OR A REACTIVE PROPULSIVE THRUST, NOT OTHERWISE PROVIDED FOR
- F03B—MACHINES OR ENGINES FOR LIQUIDS
- F03B13/00—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates
- F03B13/12—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy
- F03B13/14—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy
- F03B13/16—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem"
- F03B13/18—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore
- F03B13/1845—Adaptations of machines or engines for special use; Combinations of machines or engines with driving or driven apparatus; Power stations or aggregates characterised by using wave or tide energy using wave energy using the relative movement between a wave-operated member, i.e. a "wom" and another member, i.e. a reaction member or "rem" where the other member, i.e. rem is fixed, at least at one point, with respect to the sea bed or shore and the wom slides relative to the rem
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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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- Other Liquid Machine Or Engine Such As Wave Power Use (AREA)
Abstract
The invention discloses a buoyancy pendulum type wave power generation device, relates to the technical field of buoyancy pendulum type wave power generation, solves the problems that the pendulum type wave power generation device in the prior art cannot realize pendulum body steering and risk avoidance when the wave energy exceeds the bearing limit of equipment at the same time of simple structure and low cost, has the beneficial effects of utilizing less power to realize buoyancy pendulum head-on wave surface rotation positioning, pendulum body swing amplitude limitation and risk avoidance, and has the following specific scheme: the utility model provides a buoyancy pendulum-type wave power generation device, includes stand and pendulum body support, and the stand runs through supporting platform and sets up, and pendulum body support top sets up the swivel becket, and the swivel becket rotates rather than the fixed awl at top to be connected, and the main rope of fixed awl top fixed connection passes and is connected with the main rope straining device on the supporting platform behind the stand, and the main rope drives the motion of pendulum body support in order to accomplish the chuck joint of pendulum body support and stand bottom, and main rope straining device connects the switch board on the supporting platform.
Description
Technical Field
The invention relates to the technical field of buoyancy pendulum wave power generation, in particular to a buoyancy pendulum wave power generation device.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The wave energy generally refers to the kinetic energy and potential energy of ocean surface waves, is wide in wave energy distribution, large in energy flux density and high in quality, can be used for power generation, water pumping, seawater desalination, ammonia production and the like, and common wave energy utilization devices can be divided into oscillating water columns, oscillating floaters, buoyancy pendants, raft type devices and the like according to the working principle;
the inventor finds that for a buoyancy pendulum device working in shallow seawater and utilizing a high energy flow density area, the wave direction can be changed continuously, so that the orientation of the wave facing surface of the pendulum body in water needs to be changed along with the wave direction in order to ensure the wave energy received by the wave facing surface of the pendulum body to be maximized; meanwhile, when the wave energy exceeds the bearing limit of equipment, danger avoiding measures need to be taken to prevent the pendulum body from being damaged. Generally, two methods are used for solving the problems, one method is to realize the functions of adjusting the direction of the pendulum body facing the wave surface and avoiding the billows by a semi-submersible mother ship, and the other method is to use the design of a maritime work platform for reference, and is provided with a complex hydraulic lifting and gear rotating system, so that the cost is higher.
In conclusion, the direction and position of the pendulum body can be adjusted only by additionally arranging equipment such as a semi-submersible mother ship or a large marine platform in the conventional buoyancy pendulum type wave power generation device, and the pendulum body cannot be rotated and oriented and risk is avoided by the buoyancy pendulum type wave power generation device.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide a buoyancy pendulum type wave power generation device, and solves the technical problems that pendulum body steering and wave energy exceeding the bearing limit danger avoiding of equipment cannot be realized at the same time of simple structure and low cost in the prior art.
In order to achieve the purpose, the invention is realized by the following technical scheme:
the utility model provides a buoyancy pendulum-type wave power generation device, includes stand and pendulum body support, and the stand runs through the supporting platform setting, and pendulum body support top sets up the swivel becket, and the swivel becket rotates rather than the fixed awl at top to be connected, and fixed awl top fixed connection's main rope passes and is connected with the main rope straining device on the supporting platform behind the stand, and main rope drives the motion of pendulum body support in order to accomplish the chuck joint of pendulum body support and stand bottom, and main rope straining device connects the switch board on the supporting platform.
According to the buoyancy pendulum type wave power generation device, the main body of the pendulum body support is the pendulum body frame, the pendulum body is arranged in the pendulum body frame and is rotatably connected with the bottom of the pendulum body frame, and the two sides of the pendulum body are provided with the guide plates.
According to the buoyancy pendulum type wave power generation device, the top of the pendulum body frame is the support shaped like a Chinese character 'mi', the center position of the support shaped like a Chinese character 'mi' is fixedly connected with the rotating ring, the periphery of the bottom of the chuck is provided with the plurality of tooth sockets, and the tooth sockets are matched with the frame shaped like a Chinese character 'mi'.
According to the buoyancy pendulum type wave power generation device, the supporting platform is further provided with an auxiliary cable tensioning mechanism connected with the control cabinet, and the auxiliary cable sequentially penetrates through the upright column and the fixed cone and then is connected with the pendulum body.
According to the buoyancy pendulum type wave power generation device, the pendulum body is provided with the limiting belt, and the auxiliary cable penetrates through the fixed cone and then is connected with the limiting belt at the top of the pendulum body through the pulley.
According to the buoyancy pendulum type wave power generation device, the electric control cable is led out of the interior of the pendulum body through one side of the main shaft, penetrates through the rotating ring and then extends to the supporting platform through the upright post, and the part of the electric control cable in the upright post is of a spiral spring structure.
According to the buoyancy pendulum type wave power generation device, the electric control cable is divided into two parts at the supporting platform, and an electric rotating ring is arranged between the two parts of the electric control cable.
According to the buoyancy pendulum type wave power generation device, the main cable tensioning mechanism is provided with the first displacement sensor to detect the moving distance of the main cable, and the main cable in the locking state of the power generation device is provided with the tension sensor at the position of the supporting platform.
In the above buoyancy pendulum type wave power generation device, the secondary cable tensioning mechanism is provided with a second displacement sensor.
According to the buoyancy pendulum type wave power generation device, the control cabinet is in signal connection with the wave sensor on the buoy on one side of the supporting platform, and the vortex brake is arranged inside the pendulum body.
The beneficial effects of the invention are as follows:
1. according to the invention, the rotating ring is arranged at the top of the pendulum body support, the rotating ring is rotatably connected with the fixed cone, and the main cable passes through the upright post and then is connected with the main cable tensioning mechanism on the supporting platform, so that the main cable drives the pendulum body support to move up and down to complete clamping connection of the pendulum body support and the chuck at the bottom of the upright post.
2. The arrangement of the guide plate has a large blocking effect on water flow which is not parallel to the guide plate, and under the effect of the water flow, the direction of the pendulum body frame which is separated from the tooth grooves can be automatically adjusted, so that the blocking effect of the guide plate on waves is reduced, and the wave-facing surface of the pendulum body is basically consistent with the wave motion direction.
3. The limit belt is matched with the auxiliary cable tensioning mechanism, so that the swing amplitude of the pendulum body is controlled, the pendulum body can adapt to different offshore working conditions conveniently, and the eddy current brake has the function of assisting braking of the pendulum body. The arrangement of the displacement sensor is convenient for the tensioning mechanism to judge the states of the pendulum body bracket and the pendulum body.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, are included to provide a further understanding of the invention, and are incorporated in and constitute a part of this specification, illustrate exemplary embodiments of the invention and together with the description serve to explain the invention and not to limit the invention.
Fig. 1 is a front view of the buoyant pendulum wave power unit of the present invention when oriented.
Fig. 2 is a schematic view of a portion a of fig. 1.
Fig. 3 is a schematic structural diagram of the buoyancy pendulum type wave power generation device when the device is turned.
Fig. 4 is a schematic structural diagram of part B in fig. 3.
Fig. 5 is a schematic structural view of part C in fig. 4.
Fig. 6 is an axial schematic view of the buoyant pendulum wave power plant of the present invention when oriented.
Fig. 7 is an axis measuring view when the buoyancy pendulum type wave power generation device is in danger avoidance.
In the figure: the spacing or dimensions between each other are exaggerated to show the location of the various parts, and the schematic is shown only schematically.
Wherein: 1. the device comprises a supporting platform, 2 parts of an upright post, 2 parts to 1 parts of a chuck, 2 parts to 11 parts of a tooth socket, 3 parts to 1 parts of a pendulum body bracket, 3 parts to 11 parts of a pendulum body frame, 3 parts to 2 parts of a square bracket, 3 parts to 3 parts of a guide plate, 3 parts to 3 parts of a pendulum body, 3 parts to 4 parts of a rotating ring, 3 parts to 5 parts of a fixed cone, 4 parts of an electric control cable, 5 parts to 5 parts of a tensioning mechanism, 5 parts to 1 parts of a main cable tensioning mechanism, 5 parts to 3 parts of a main cable, 5 parts to 4 parts of an auxiliary cable, 5 parts to 5 parts of a limiting belt, 5 parts to 2 parts of an auxiliary cable tensioning mechanism, 5 parts to 21 parts of an auxiliary cable tensioning wheel, 5 parts to 22 parts of a locking mechanism, 5 parts to 23 parts of a speed reducer, 5 parts to 24 parts of a stepping motor and 6 parts of a control cabinet.
Detailed Description
It is to be understood that the following detailed description is exemplary and is intended to provide further explanation of the invention as claimed. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs.
As introduced in the background art, the pendulum type wave power generation device in the prior art cannot realize the problems of pendulum body steering and risk avoidance of wave energy exceeding the bearing limit of equipment while having simple structure and low cost.
Example one
In a typical embodiment of the present invention, referring to fig. 1 to 7, a buoyant pendulum type wave power generation device includes a support platform 1, a column 2, a pendulum support 3, a tensioning mechanism, and an electric control cabinet 6.
The supporting platform 1 is transversely arranged and used for supporting the whole buoyancy pendulum power generation system, and the supporting platform 1 can be fixed on an ocean platform or other similar offshore devices and consists of a steel-structured flat plate and a reinforcing rib plate.
The upright post 2 is a hollow steel cylinder, the upright post 2 penetrates through the middle position of the supporting platform to extend downwards, the bottom of the upright post is provided with a chuck 2-1, the diameter of the chuck 2-1 is larger than that of the upright post, and as shown in figure 4, the circumference of the bottom of the chuck is provided with a circle of tooth grooves 2-11 which are used for being clamped with the top of the pendulum body bracket 3.
As shown in fig. 1 and 6, the body of the pendulum support 3 is a pendulum frame 3-1, two hinged supports are arranged on a bottom plate of the pendulum frame 3-1, the two hinged supports are arranged at the central positions of two opposite sides of the bottom plate, two ends of the bottom of the pendulum 3-3 are hinged with the hinged supports, and guide plates 3-2 are arranged at two sides of the pendulum 3-3, namely the hinged supports, so as to guide waves and enable the waves to move towards the pendulum.
The top of the pendulum body frame 3-1 is provided with a Mi-shaped support 3-11, the Mi-shaped support is formed by welding a plurality of support rods at the center point of the top of the pendulum body frame, the center position of the top of the Mi-shaped support 3-11 is fixedly connected with a rotating ring 3-4, the rotating ring is rotatably connected with a fixed cone 3-5 on the inner side of the rotating ring, namely the rotating ring is rotatably sleeved on the periphery of the fixed cone, the top of the fixed cone protrudes out of the rotating ring, under the action of waves, the fixed cone is fixed, and the pendulum body frame can drive the rotating ring 3-4 and the fixed cone 3-5 to rotate relatively along with the waves.
The top of the fixed cone 3-5 is fixedly connected with a main cable 5-3, the main cable 5-3 extends upwards along the inside of the upright post 2, penetrates through the upright post and then is connected with a main cable tensioning mechanism 5-1 on the supporting platform 1, the main cable 5-3 is tensioned and placed through the main cable tensioning mechanism 5-1, the swinging support pulled by the main cable rises and falls, when the swinging support pulled by the main cable rises to a set position, the top of the swinging support contacts with a chuck at the bottom of the upright post in a shape like a Chinese character 'mi', the tooth sockets are clamped with the corresponding Chinese character 'mi', the swinging support after being clamped cannot continue to turn due to the limitation of the tooth sockets, and the positioning of the swinging support is realized.
Furthermore, the main cable tensioning mechanism 5-1 is connected with the control cabinet 6 on the supporting platform 1, the control cabinet 6 controls the work of the main cable tensioning mechanism 5-1, the control cabinet 6 is in signal connection with the wave sensor arranged on the buoy on one side of the supporting platform 1, the wave sensor is conveniently installed on the existing observation platform, the wave height and the wave direction can be measured, the power consumption is low, the pendulum body support can be put in for a long time, the control cabinet 6 can receive the data of the wave sensor, and the orientation of the wave-facing surface of the pendulum body support can be changed in real time according to the direction change of waves.
The supporting platform is also provided with an auxiliary cable tensioning mechanism 5-2 connected with the control cabinet 6, the auxiliary cable tensioning mechanism and the main cable tensioning mechanism have the same structure and are respectively arranged at the left side and the right side of the upright post 2 on the supporting platform 1, the auxiliary cable passes through the inside of the upright post from an auxiliary cable tensioning mechanism 5-2 on the supporting platform and sequentially passes through the bottom of the upright post 2, the fixed cone 3-5 and the rotating ring to be connected with the pendulum body.
In order to control the swing amplitude of the pendulum body 3-3 and prevent the wave power generation device from being damaged due to overlarge wind and waves, a limiting belt is arranged on the pendulum body, two longitudinal limiting belts 5-5 are arranged in the embodiment, the limiting belts penetrate through a fixing block on the pendulum body and are elastic, the starting ends of the limiting belts are located at the bottom of the first surface of the pendulum body, and the starting ends of the limiting belts are fixed at the bottom of the second surface of the pendulum body after passing through the tail end of the top of the pendulum body.
As shown in fig. 4 and 5, the auxiliary cable 5-4 passes through a through hole at the center of the fixed cone 3-5 downwards through the upright column to be connected with the pendulum body, wherein two pulleys are fixed at two ends of the bottom of the bracket 3-11 shaped like a Chinese character 'mi', the auxiliary cable 5-4 is fixedly connected with the limiting belt after passing around the pulleys, the connection position is at the top of the pendulum body, the distance between the two pulleys is matched with the distance between the two limiting belts, and the auxiliary cable is prevented from deflecting.
In the embodiment, the auxiliary cable tensioning mechanism 5-2 is used for controlling the extension length of the auxiliary cable, so that the swing amplitude of the pendulum body 3-3 can be controlled, the pendulum body is protected, meanwhile, the vortex brake is arranged in the pendulum body, the auxiliary braking effect is achieved when the swing amplitude of the pendulum body is too large, the control swing degree is mainly applied to the situation that the direction of waves is unchanged, but the energy flux density is improved, when extreme sea conditions are met, the pendulum body and the pendulum body support are required to be sunk to a safe depth by utilizing the tensioning mechanism to be matched with the limiting belt 5-5, and the wave power generation device is prevented from being damaged due to too large wind waves.
An electric control cable 4 is led out from one side of a main shaft in the pendulum body 3-3, the electric control cable 4 penetrates through a rotating ring and then extends to the supporting platform 1 through the upright post to be used for leading out power generated by the power generation device, the electric control cable transports the power to a designated device, the electric control cable can be used after power generation processing of the power generation device, the electric control cable 4 is in the prior art, the part of the electric control cable 4 in the upright post is of a spiral spring structure, the electric control cable can be easily elongated in the vertical direction in the descending process of the pendulum body, when the electric control cable descends to a safe depth, an enough extending space is guaranteed, and the shape of the electric control cable can be restored in the ascending process of the pendulum body.
The electric control cable 4 is divided into two parts at the supporting platform, and an electric rotating ring is arranged between the two parts of electric control cables. The two parts of electric control cables are communicated and can rotate relatively, the electric control cables below the platform can rotate together with the pendulum body support, and the parts above the platform do not rotate and do not influence each other.
The auxiliary cable tensioning mechanism 5-2 comprises an auxiliary cable tensioning wheel 5-21, a stepping motor 5-24, a speed reducer 5-23, a coupling and a locking mechanism 5-22, and the auxiliary cable tensioning mechanism only needs to tension, close and retract the auxiliary cable in the prior art. The locking mechanism may be a tensioning wheel locker, which is known in the art, and it is understood that the main cable tensioning mechanism and the auxiliary cable tensioning mechanism have the same structure and are not described herein again.
In order to accurately fix the pendulum body support 3 with the chuck 2-1, a first displacement sensor is arranged on the main cable tensioning mechanism to detect the moving distance of the main cable, after the pendulum body support is lowered for a set distance, the first displacement sensor records the descending distance of the pendulum body support 3 and sends a signal to the control cabinet 6, when the pendulum body support needs to be locked, the control cabinet changes the set distance to send the main cable tensioning mechanism, and the pendulum body support 3 rises for the set distance again to complete locking.
The main cable of the power generation device in the locking state is provided with a tension sensor at the position of the supporting platform, and when the pendulum support is close to the locking state and the tension reaches the maximum limit value of the tension sensor, the star-shaped support is proved to be abutted against the tooth socket. At the moment, the control cabinet controls the main cable tensioning mechanism to stop contracting.
In another example, the tension sensor can be replaced by a torque sensor, and the torque sensor can convert the torque into the tension, which also has the above-mentioned effects.
Furthermore, a second displacement sensor is arranged on the auxiliary cable tensioning mechanism, and the control cabinet can control the swing amplitude of the pendulum according to different working conditions, so that the control of the length of the auxiliary cable inside the pendulum support is realized. It can be understood that the support platform 1 is provided with an independent power supply for supplying power to the power utilization structure of the whole power generation equipment.
The buoyancy pendulum type wave power generation device of the embodiment has the following functions:
the pendulum body is automatically rotated and oriented, as shown in fig. 1 and 2:
when the pendulum body is in a power generation working condition, the pendulum body 3-3 and the pendulum body support 3 do not work underwater, the pendulum body absorbs wave energy to generate reciprocating motion, mechanical energy is converted into electric energy and is transmitted outwards through an electric control cable, a steel pipe at the upper part of the pendulum body support 3 forms a square support and is embedded into a tooth groove 2-11 of the chuck 2-1, a main cable tensions the pendulum body support through a main cable tensioning mechanism and automatically locks, relative motion between the tooth groove 2-11 and the square support 3-11 is guaranteed, and the orientation of the pendulum body in water is fixed.
If the wave sensor detects that the direction of the waves is greatly changed, the direction of the pendulum body facing the wave surface needs to be adjusted to be consistent with the motion direction of the waves, as shown in figures 3-5. Firstly, the electric control cabinet 6 sends out a control signal, the tensioning mechanism puts down the cable, and the main cable and the auxiliary cable are locked after the bracket shaped like a Chinese character 'mi' is just separated from the tooth groove. At the moment, the guide plate has a larger blocking effect on water flow which is not parallel to the guide plate, and under the action of the water flow, the direction of the pendulum body frame which is separated from the tooth grooves can be automatically adjusted, so that the blocking effect of the guide plate on waves is reduced, and the wave-facing surface of the pendulum body is basically consistent with the wave motion direction. And finally, the tensioning mechanism retracts the mooring rope and locks the mooring rope, the tooth socket and the bracket shaped like a Chinese character 'mi' are clamped and fixed again, and the orientation of the wave-facing surface of the pendulum body in water is fixed. The moving distance of the cable is recorded by a displacement sensor, and the tension sensor measures the tension of the cable on the tension wheel. The main cable is a multi-layer strand steel wire rope and is arranged on the upper portion of the fixed cone, the main cable does not rotate relative to the fixed cone, the auxiliary cable 5-4 penetrates through the fixed cone 3-5, and when the pendulum body and the pendulum body support rotate in water, the auxiliary cable can rotate relative to the fixed cone.
The pendulum swing is localized as shown in fig. 6.
When the wave period and wave height are changed continuously, the swing amplitude of the pendulum body is changed accordingly. If no limiting measures are taken, the swing amplitude of the pendulum body can exceed the maximum design value in some cases, and serious faults are easily caused. The distance of movement of the secondary cable is recorded by the second displacement sensor. The control cabinet 6 controls the total length of the auxiliary cable 5-4 according to different working conditions, the maximum swing amplitude of the pendulum body can be limited by the limiting belt, and the situation that the swing amplitude of the pendulum body is too large is avoided. The limit has micro elasticity and large joint area with the pendulum body, and the impact force generated when the pendulum body swings to the limit position is effectively buffered.
The pendulum body avoids danger, as shown in fig. 7.
If the wave sensor detects that the energy of waves is too large, a very large acting force is generated on the whole buoyancy pendulum power generation system, and particularly under an extreme sea condition, the power generation device is seriously damaged. When it is monitored that sea stormy waves exceed a design allowable value, the control cabinet 6 sends an instruction, the main cable and the auxiliary cable are changed from a locking state to a descending state, the pendulum body and the pendulum body bracket are slowly sunk to a certain depth and locked, the wave force action on the pendulum body and the pendulum body bracket is reduced, and the safety of the power generation device is ensured.
The buoyancy pendulum type wave power generation device is simple in structure and low in cost, and by means of the cooperation of the guide plate, the chuck, the pendulum body support and the tensioning mechanism, the facing wave surface orientation of the pendulum body is changed according to the change of the wave direction, the wave energy maximization of the facing wave surface of the pendulum body is guaranteed, and a complex and expensive mechanical power rotating system does not need to be used.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. The utility model provides a buoyancy pendulum-type wave power generation device, its characterized in that, includes stand and pendulum body support, and the stand runs through supporting platform and sets up, and pendulum body support top sets up the swivel becket, and the swivel becket rotates rather than the fixed awl at top to be connected, and fixed awl top fixed connection's main rope passes behind the stand to be connected with main rope straining device, and main rope drives pendulum body support motion in order to accomplish the chuck joint of pendulum body support and stand bottom, and main rope straining device connects the switch board on the supporting platform.
2. The buoyant pendulum-type wave power generation device of claim 1, wherein the pendulum support comprises a pendulum frame, the pendulum is disposed in the pendulum frame and rotatably connected to the bottom of the pendulum frame, and the guide plates are disposed on two sides of the pendulum.
3. The buoyant pendulum type wave power generation device of claim 2, wherein the top of the pendulum body frame is a m-shaped bracket, the center of the m-shaped bracket is fixedly connected with the rotating ring, a plurality of tooth sockets are arranged on the periphery of the bottom of the chuck, and the tooth sockets are matched with the m-shaped frame.
4. The buoyant pendulum wave power unit of claim 1, wherein the support platform further comprises a secondary cable tensioning mechanism coupled to the control cabinet, the secondary cable passing through the vertical column and the stationary cone in sequence and then coupled to the pendulum.
5. The buoyant pendulum-type wave power unit of claim 4, the auxiliary cable penetrates through the fixed cone and then is connected with the limiting belt at the top of the pendulum body through the pulley.
6. The buoyant pendulum-type wave power generation device of claim 2, wherein an electric control cable is led out from the interior of the pendulum body through one side of the main shaft, the electric control cable passes through the rotating ring and then extends to the supporting platform through the upright post, and the part of the electric control cable in the upright post is of a spiral spring structure.
7. The buoyant pendulum wave power unit of claim 6, wherein the electrical control cable is split into two parts at the support platform, and an electrical rotating ring is disposed between the two parts of the electrical control cable.
8. The buoyant pendulum-type wave power unit of claim 1, wherein the primary cable tensioning mechanism is provided with a first displacement sensor for detecting the distance traveled by the primary cable, and wherein the primary cable in the locked state of the power unit is provided with a tension sensor at the support platform.
9. The buoyant pendulum wave power unit of claim 4, wherein the secondary cable tensioning mechanism is provided with a second displacement sensor.
10. The buoyant pendulum wave power unit of claim 5, wherein the control cabinet is in signal communication with a wave sensor on a buoy on the side of the support platform, and wherein the pendulum is internally provided with eddy current brakes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794850.8A CN115143021A (en) | 2022-07-07 | 2022-07-07 | Buoyancy pendulum type wave power generation device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210794850.8A CN115143021A (en) | 2022-07-07 | 2022-07-07 | Buoyancy pendulum type wave power generation device |
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| CN115143021A true CN115143021A (en) | 2022-10-04 |
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| CN202210794850.8A Pending CN115143021A (en) | 2022-07-07 | 2022-07-07 | Buoyancy pendulum type wave power generation device |
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