JP5492101B2 - Fluid vibration power generator - Google Patents

Description

  The present invention relates to a fluid vibration power generation apparatus that converts vibration energy generated when a fluid passes through an object into electric energy, and can receive fluid vibration efficiently and can be elongated easily.

  In recent years, global warming has been a concern, and solar power generation and wind power generation using natural energy, which has a low carbon dioxide emission, which is the main cause, have attracted attention. Among them, wind power generators are capable of generating electricity at night, and large-scale power generation is possible due to the increase in size, so many wind farms are being built around the world. The problems of the conventional power generation method using wind power generation and water turbine using the rotation of the conventional turbine shown in FIG. 1 will be described.

  There is a problem of securing a dedicated site as a problem of the conventional method. In general, it is necessary to have a size corresponding to the scale of power generation, and ensuring safety is also important. Furthermore, it is necessary to consider the surrounding natural environment and living environment such as noise and vibration during operation. For this reason, the power generation device cannot always be installed at a place optimal for power generation, and there is a problem in the degree of installation freedom. In addition, there is a risk that the planned energy will not be obtained after installation, and once it is constructed, removal will also cost depending on the scale. In general, a place where a large-scale power generation apparatus is installed is often a place away from an urban area, which is a power consumption area, from the viewpoint of securing a site and cost, and transmission loss due to power transmission occurs.

  Next, we will describe the issues regarding maintenance. In general, when the size of a machine or device increases, the number of functions to be applied increases, which complicates the structure and management, resulting in labor and cost. The same applies to the above-described conventional power generation apparatus. In particular, since the turbine, gears, and bearings are consumed by rotation, regular maintenance is essential, and labor and cost are required.

  Next, problems in operation in an overload state will be described. In particular, in conventional wind power generation and hydropower generation, fluid kinetic energy is received by a turbine and converted into electric energy. At this time, when a fluid having a kinetic energy exceeding a specified value passes through the turbine, it may fall into a high-load / over-rotation state, and the turbine, gears, bearings, power generation device, support column, and the like may not be able to withstand and be destroyed. In the case of turbine-type wind power generation, the turbine blade may be destroyed by lightning strikes. Rotating parts and parts such as turbines rotate at high speed and kinetic energy is accumulated, and these kinetic energies are suddenly released by the destruction, so that the debris is scattered at a high speed and over a wide area, causing danger to the surroundings. Effect. Therefore, safety measures to deal with the dangers caused by rotation, such as a feather function to prevent rotation in an overload state, and securing a site that takes into account the scattering of parts (in the wind power generation method) are essential. Incurs an increase in management costs.

  In addition, in a method of generating power by rotating with a turbine, particularly wind power generation, living things such as birds in flight may be involved in the blades and affect the ecosystem. And especially in areas where rare birds inhabit, it is necessary to consider installation locations and structures that are unlikely to affect the ecosystem, which may limit efficiency and structure.

  Next, the non-rotating fluid power generation method will be described. Vibrations caused by fluid vortices have been known for a long time, and include twin vortices, Karman vortices, and turbulent flow. Then, when the vibration frequency of these vortices approaches the resonance frequency of the object, it resonates with the object to generate self-excited vibration. Here, since self-excited vibration may have a destructive effect on an object, an evaluation test for wind pressure vibration is an important item in the development of cables and aircraft installed outdoors.

  In particular, the evaluation of Karman vortices is the most important in evaluating vibrations caused by vortices. As shown in FIG. 2, when the cylinder C1 is installed in the fluid F1, a negative pressure region N1 is generated on the downstream side of the cylinder C1, and the vibration frequency of the Karman vortex V1 generated behind the cylinder C1 is generally f = St × V / d (St: constant, V: flow velocity, d: diameter), and the cylinder C1 vibrates at the vibration frequency in the direction perpendicular to the flow direction. In addition, when an elliptical cylinder or a quadrangular cylinder is installed in the fluid F1 instead of the cylinder C1, a rotating moment is added to the fluid F1, and a complicated vibration motion is involved.

  The influence of the vortex on the object is converted in a form called vortex excitation. Excitation of an object by a vortex mainly includes self-excited oscillation due to the coincidence of the forced vibration frequency from the vortex and the resonance frequency of the object. In the case of self-excited vibration, the vortex energy of the fluid is converted as the vibration energy of the object at a large rate, so that it is suitable for extracting electric power by installing a fluid vibration power generation device on the object. Several known techniques using such a principle have been proposed as shown below.

  Research and development of power generation devices using vibrations that exist in nature have become active (Patent Documents 1 and 2). In recent years, due to the development of electronic device technology in recent years, it has become possible to use small vibration energy existing in nature as a power source (several mW). In addition, since vibrations in the low frequency range of about several tens to several hundreds of Hz are common existence in the natural world and human social activities, research and development for efficiently converting these vibrations into energy is underway.

  In particular, the vibration-type electret power generation device uses a MEMS (Micro Electro Mechanical Systems) manufacturing process, so it is excellent in small size and mass productivity, and can generate power even in a low frequency range, so it is a promising candidate for a fluid vibration power generation device. Are listed. According to Non-Patent Documents 1 and 2, since power can be generated even in the region of about 20 Hz and the output is several tens of μW, a large amount of power can be generated by arranging a large amount in an array. In addition, when a wind of 10 m / s per second passes through a general electric wire (diameter: 10 mm) installed in the air (St: 0.2), it is generated on the lee side of the electric wire by applying the above formula. The vibration frequency of the Karman vortex is f = 0.2 × 10 / 0.01 = 200 (rad / s) ≈33 Hz, and can be resonated with the above electret.

Japanese Patent Laid-Open No. 08-321642 JP 2001-157433 A

M.M. Edamoto, Y. et al. Suzuki, N .; Kasagi, K .; Kashiwagi, Y. et al. Morizawa, T .; Yokoyama, T .; Seki, M .; Oba, “Low-Resonant-Frequency Micro Electrogen Generator for Energy Harvesting Application”, Micro Electro Mechanical Systems, 2009. MEMS 2009. IEEE 22nd International Conference, pp. 1059-1062, Jan. 2009. C. Marboutin, Y. et al. Suzuki, N .; Kasagi, “Optimal Design of Micro Electric Generator for Energy Harvesting”, 7th Int. Works on Micro and Nanotechnology for Power Generation and Energy Conversion Applications (PowerMEMS 2007), Freiburg, pp. 141-144, 2007.

  Next, the prior art of vibration power generation using fluid will be described below. The prior art of Patent Document 2 shown in FIG. 3 is a method of vibrating a rigid columnar pole G1 that can hold its own shape, and the pole G1 uses two support portions S1 and two springs E1. Two power generation parts P1 that convert vibration into electric power are provided at both ends of the pole G1. When the fluid F1 passes through the pole G1, a Karman vortex is generated on the downstream side, and vibration is generated by matching the vibration frequency of this vortex with the resonance frequency of the pole G1.

  The power that can be generated can be realized by enlarging the scale of the power generation device. However, when the pole G1 is extended to improve the efficiency of vibration power generation, the load generated by the weight and vibration of the pole G1 increases. It is necessary to strengthen the pole G1 and the support part S1. Not only does the strengthening of each part increase the weight, but the weight increase itself further increases the load of each part, so that a strength design including an increase in the weight is required, and there is a limit to the materials that can be used. This also limits the length that the pole G1 can be extended.

  In addition, when the above method is applied to a flexible material that cannot support its own shape with its own strength, such as cables, electric wires, cords, and the like, both ends of the pole G1 serve as vibration nodes. It is difficult to obtain and power generation is not efficient (in other words, it is impossible to generate power at the antinode portion of the vibration where the power generation efficiency is maximum). For the above reasons, there is a problem in using a flexible linear material for vibration power generation at both ends of the pole G1.

  In addition, since the power generation part P1 installed in the support part S1 has a mechanically operated part such as the spring E1, increasing the size of the power generation apparatus can withstand a large amplitude corresponding to the scale of power generation. It requires a structure that supports a certain support portion S1, and requires a large, heavy, and complicated mechanical part. As a result, not only the power generation part but also the struts and foundations, etc., increase the weight of the entire device, make the structure more complicated, and require the use of parts according to the scale, leading to increased costs and deteriorated maintenance operability. . Furthermore, since both ends of the pole G1 are connected to the power generation part P1 via the spring E1, there is a risk that parts may scatter when the spring E1 is broken.

  When using multiple struts and generating vibration with different strut spacing, the vibration frequency between struts is different, and the balance of tension between poles is lost, thus canceling vibrations and vibrations in irregular directions. Problems arise in terms of strength and power generation efficiency, such as the generation of antiphase forces.

  Moreover, since the vibration direction from which power can be extracted is the vertical direction, only the vibration energy in the vertical direction can be converted into power energy even if the vibration direction is vertical or horizontal.

  In addition, the conventional vibration power generation method is not premised on performing vibration power generation with a very long cable, so it can only be constructed with a finite length (size) due to its structure. On the other hand, there is a problem that is difficult to adapt.

  Accordingly, in order to solve the above-described problem, the present invention relates to a fluid vibration power generation apparatus that converts vibration energy generated when a fluid passes through an object into electric energy. It aims to make possible.

  In order to achieve the above object, a vortex generator having a cable shape divides a fluid upstream and generates a vortex downstream, and a vibration power generator disposed downstream of the vortex generator uses a vortex. Vibration energy is converted into electrical energy.

Specifically, the present invention has a cable shape, and is arranged on the downstream side of the vortex generating portion, and the vortex generating portion is arranged on the downstream side of the vortex generating portion to branch the fluid upstream and generate the vortex downstream. A vibration power generation unit that converts vibration energy of vibration into electric energy; and a load control unit that suppresses vibration of the vibration power generation unit by increasing an electric load that consumes the electric energy according to an increase in the vibration energy. a fluid vibration power device, characterized in that it comprises a.

According to this configuration, a fluid vibration power generation apparatus that converts vibration energy generated when a fluid passes through an object into electrical energy, the vortex generator having a cable shape is efficiently subjected to fluid vibration and is easily elongated. Can be made possible.
Moreover, according to this structure, the amplitude of a vibration electric power generation part can not be increased too much.

  The fluid vibration power generator according to the present invention is characterized in that the projected area on the upstream side of the vortex generator is adjusted so that the resonance frequency of the vibration power generator is substantially equal to the vibration frequency of the vortex. It is.

  According to this configuration, it is possible to efficiently increase the amplitude of the vibration power generation unit.

  In the fluid vibration power generation device according to the present invention, the vibration power generation unit may be connected to the vortex generation unit so as to extend in a plurality of substantially vertical directions with respect to an extension direction axis of the vortex generation unit. It is.

  According to this configuration, vibration power generation can be performed regardless of the fluid flow direction.

  In addition, the present invention is the fluid vibration power generation device further including a rotation unit that rotates the vibration power generation unit with respect to the extending direction axis of the vortex generation unit.

  According to this configuration, vibration power generation can be performed regardless of the fluid flow direction.

  In addition, the present invention is the fluid vibration power generation device, wherein the vibration power generation unit has flexibility and a sheet shape.

  According to this configuration, the vibration power generation unit can efficiently receive fluid vibration.

  Further, according to the present invention, the vibration power generation unit supplies power to at least one of a power line parallel to the vortex generation unit and a signal control device of a communication line parallel to the vortex generation unit. Device.

  According to this configuration, the fluid vibration power generation device can coexist with the power communication line.

  Further, the present invention provides a power communication connection for connecting the vortex generator and the vibration power generator so as to be integrated with at least one of a power line parallel to the vortex generator and a communication line parallel to the vortex generator. The fluid vibration power generator further comprising a section.

  According to this configuration, the fluid vibration power generation device can coexist with the power communication line.

  In addition, the present invention is the fluid vibration power generation device further including a vortex generation power generation connection unit that connects the vortex generation unit and the vibration power generation unit so as to be integrated.

  According to this configuration, the vibration power generation unit can be disposed at a position where a vortex suitable for power generation is generated, whereas the vibration power generation unit can not be disposed at a position where a vortex suitable for power generation does not occur.

  The present invention relates to a fluid vibration power generation apparatus that converts vibration energy generated when a fluid passes through an object into electric energy, and can receive fluid vibration efficiently and can be easily elongated.

It is a figure which shows the electric power generation system using the turbine rotation of a prior art. It is a figure which shows the principle of the fluid vibration electric power generating apparatus of a prior art. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of a prior art. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 1. FIG. It is a figure which shows the principle of the fluid vibration electric power generating apparatus of Embodiment 1. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 2. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 3. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 3. It is a figure which shows the structure of the eddy frequency stabilization part of Embodiment 4. It is a figure which shows the structure of the eddy frequency stabilization part of Embodiment 4. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 5. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 6. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 8. It is a figure which shows the principle of the fluid vibration electric power generating apparatus of Embodiment 8. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 9. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 10. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 11. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 11. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 11. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 12. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 13. FIG. It is a figure which shows the structure of the fluid vibration electric power generating apparatus of Embodiment 13. FIG.

  Embodiments of the present invention will be described with reference to the accompanying drawings. The embodiments described below are examples of the present invention, and the present invention is not limited to the following embodiments. In the present specification and drawings, the same reference numerals denote the same components.

(Embodiment 1)
The configuration of the fluid vibration power generator of Embodiment 1 is shown in FIG. The fluid vibration control device P includes a vortex generator 1, a vibration power generator 2, and a vortex receiver 3. The vortex generator 1 has a cable shape, and divides the fluid on the upstream side and generates a vortex on the downstream side. The vibration power generation unit 2 is disposed on the downstream side of the vortex generation unit 1 and converts vibration energy of vibration caused by the vortex into electric energy. The vortex receiving unit 3 arranges the vibration power generation unit 2 and arranges and holds the vortex generated in the vortex generation unit 1. The vortex generator 1, the vibration power generator 2, and the vortex receiver 3 are supported by the support S.

  The vortex generator 1 is in the form of a cable, and a negative pressure region N is generated on the downstream side (the back side where the fluid F hits the vortex generator 1) by passing a fluid or powdered fluid as shown in FIG. A vortex such as the vortex V is generated. These vortices have a frequency and kinetic energy corresponding to the properties and flow velocities of the fluid F and the incident angle to the vortex generator 1 (in general, the shape of the natural vortex is not a perfect circle but a non-uniform circle. Many).

  Vibration energy associated with the rotation of these vortices is received by the vibration power generation unit 2 (vortex excitation, resonance vibration or forced vibration). As the fluid F passes, vortices are generated one after another from the vortex generator 1 and pass through the vibration power generator 2 one after another, thereby generating power.

  Note that the vortex generated from the vortex generator 1 only needs to give vibration (vortex excitation, resonance vibration or forced vibration) to the vibration power generation unit 2 installed on the downstream side. There is no need to be affected by vibration. Therefore, the resonance frequency of the vortex generator 1 and the resonance frequency of the vibration power generator 2 do not have to be matched. That is, in order to obtain the resonance frequency of the vortex generator 1, the tension applied to the vortex generator 1 need not be considered. And in the design in vibration power generation, it is not necessary to consider the tension applied to the vortex generator 1. The fact that the strength design of the vortex generator 1 does not have to be based on resonance with the vortex can be expected to increase the degree of freedom in material selection and design.

  Further, the frequency of the vortex generated from the vortex generator 1 varies depending on the state of the fluid F passing therethrough. Therefore, when a vortex having a constant frequency is obtained, it is desirable to use the vibration power generation unit 2 corresponding to this frequency in a unified manner. However, when conditions for passage of fluid F, such as natural wind, change, the generation efficiency is smoothed over a wide range of vortex frequencies using the vibration power generation unit 2 corresponding to the vortex frequency in the assumed range. I can expect. Here, as the vibration power generation unit 2, a known vibration power generation device such as the vibration type electret power generation device of Non-Patent Documents 1 and 2 can be used.

  In addition, when the velocity and density of the fluid F passing through the vortex generator 1 are not uniform due to the influence of the obstacle or the support S, and a vortex that is partially unsuitable for power generation is generated, By removing the vibration power generation unit 2, it is possible to prevent the vibration power generation mechanism from being installed in a useless part, and to reduce the installation cost, the manufacturing cost, the maintenance cost, and the number of parts.

  The vibration power generation unit 2 can be installed at any location of the vortex generation unit 1, and the vibration power generation unit 2 may be installed only in a portion where power generation is desired or a portion suitable for power generation. Thereby, the part which has a mechanism which performs vibration power generation, and the part which does not have can be made to coexist in one cable.

  The support part S supports the vortex generation part 1 and the vibration power generation part 2. The support part S has an effect of allowing the fluid to smoothly pass through the vortex generation part 1 and the vibration power generation part 2. If the fluid can sufficiently pass through the vortex generator 1 and tension is applied to the vortex generator 1 and the vibration power generator 2 so that the amplitude does not interfere with the ground or the wall surface even when the amplitude is maximum, the support S May be a wall surface or the ground.

  Further, even if the fluid vibration power generation device P is very long, as long as the strength of the support portion S is sufficient or a sufficient number of support portions S compared to the weight of the fluid vibration power generation device P, it is arbitrary. The first embodiment can be implemented with a length (power generation is possible with a theoretically infinite length).

(Embodiment 2)
The configuration of the fluid vibration power generation device of Embodiment 2 is shown in FIG. The fluid vibration power generator P is disposed inside the pipe T. The vortex generator 1 and the vibration power generator 2 are arranged in an annular shape. As shown in FIG. 6A, the vortex generating unit 1 and the vibration power generation unit 2 may be supported using a support portion S that extends from the inner wall of the pipe T to the center of the pipe T. As shown in FIG. 6B, the vortex generator 1 and the vibration power generator 2 may be supported using the inner wall of the pipe T as the support S. The force applied to the support portion S can be dispersed at a plurality of locations, and the length of the vortex generating portion 1 through which the fluid F passes is also ensured (enlarged).

(Embodiment 3)
The structure of the fluid vibration power generation device of Embodiment 3 is shown in FIG.7 and FIG.8. Even if there is no support part S, if there is a means for rotating the vortex generator 1 and the vibration power generation part 2 as shown in FIGS. 7 and 8 and maintaining a shape suitable for power generation, the fluid F will pass through. Electric energy can be extracted from the vortex vibration (in this case, the embodiment uses electric energy while flowing the vortex generator 1 and the vibration power generator 2 in the fluid F).

  In FIG. 7, the fluid vibration power generation device P forms a ring shape. The fluid vibration power generation device P is rotated using the flow of the fluid F. And the annular shape of fluid vibration power generator P is maintained using the centrifugal force accompanying rotation. Further, the fluid vibration power generation device P performs fluid vibration power generation while drifting in the fluid F using the flow of the fluid F, and outputs electric power to the output unit E. Here, in order to increase the power generation efficiency with respect to the entire length of the ring shape, the vibration power generation unit 2 is arranged on the outer side and the inner side of the ring shape. That is, the vibration power generation unit 2 is arranged on the downstream side of the fluid F so that there is no place where the vibration power generation unit 2 is not arranged.

  In FIG. 8, the fluid vibration power generation device P forms a string shape. The fluid vibration power generation device P is rotated using the flow of the fluid F. And the linear shape of the fluid vibration power generator P is maintained using the centrifugal force accompanying rotation. Furthermore, the fluid vibration power generation device P performs fluid vibration power generation using the flow of the fluid F while drifting in the fluid F. Here, in order to increase the power generation efficiency with respect to the entire length of the straight line, the vibration power generation unit 2 is arranged at different side surface positions on one side and the other side with respect to the rotating shaft. That is, the vibration power generation unit 2 is arranged on the downstream side of the fluid F so that there is no place where the vibration power generation unit 2 is not arranged.

(Embodiment 4)
Embodiment 4 is a form which suppresses the change of the frequency of the vortex accompanying the state (speed) change of the fluid F, and obtains the frequency of the vortex desirable for power generation. The vortex generated by the vortex generator 1 is mainly the Karman vortex, and the frequency of the Karman vortex generated behind the cylinder is generally f = St × V / d (St: constant, V: flow velocity, d: diameter). ). In other words, the frequency of the vortex depends on the front projected area of the object that affects the flow velocity and flow. That is, even if the flow velocity of the fluid passing through the vortex generator 1 changes, as shown in FIGS. 9 and 10, the vortex of the target frequency is changed by changing the front projection area for the fluid F according to the flow velocity. Can be obtained.

  As a method for adjusting the front projection area of the vortex generator 1 according to the flow velocity, the method of replacing the vortex generator 1 based on the measured flow velocity is the simplest and easiest, but time and cost are required for replacement. Become. Therefore, there is a method of mechanically adjusting the shape of the vortex generator 1 by a motor or a human hand, but since a complicated mechanism is required, it takes time to manufacture and maintain. When the auxiliary means from the outside is not used, it is effective to use the kinetic energy of the fluid F passing therethrough. The configuration of the eddy frequency stabilizing unit of the fourth embodiment is shown in FIGS.

  In FIG. 9, the vortex frequency stabilizing unit 4 associated with the vortex generating unit 1 opens and closes according to the kinetic energy of the fluid F passing through (pressure received from the fluid F) to control the front projection area. When the velocity of the fluid F is sufficiently low, the vortex frequency stabilizing unit 4 remains closed and the front projected area with respect to the fluid F is suppressed. In the condition where the flow velocity is fast and the vortex frequency becomes higher than the resonance frequency of the vibration power generation unit 2, the vortex frequency stabilization unit 4 starts to open according to the kinetic energy of the fluid F (pressure received from the fluid F). By increasing the front projection area with respect to F, the frequency of the generated vortex can be suppressed and adjusted to the resonance frequency of the vibration power generation unit 2. In this case, the vortex frequency stabilizing unit 4 is simple with a small number of components if a flexible elastic body such as rubber is used. The same operation can be expected even with a mechanical type using a spring or the like.

  In FIG. 10, the vortex frequency stabilizing unit 5 may be configured to use a ram pressure as in a ram pressure type parachute and take a shape corresponding to the flow velocity. The vortex frequency stabilization unit 5 includes a fluid intake unit 6 into which the fluid F flows, and becomes a bag-like eddy frequency stabilization unit. In this case, the size of the vortex frequency stabilizing unit 5 changes according to the ram pressure, and the front projection area changes.

(Embodiment 5)
FIG. 11 shows the configuration of the fluid vibration power generation device according to the fifth embodiment. The vibration power generation unit 2 is connected to the vortex generator 1 so as to extend in a plurality of substantially vertical directions with respect to the extension direction axis of the vortex generator 1. In FIG. 11, the vibration power generation unit 2 is connected to the vortex generation unit 1 so as to extend in two substantially perpendicular directions opposite to the extension direction axis of the vortex generation unit 1.

  The vibration power generation unit 2 is located downstream of the vortex generation unit 1 with respect to the direction in which the fluid F flows, thereby receiving power from the vortex and generating power. However, when the direction of the fluid F changes and reverses, the region R in which power generation is possible also changes and reverses, so that the vibration power generation unit 2 cannot generate power (except for Embodiment 8 described later). Therefore, by installing the vibration power generation unit 2 as shown in FIG. 11, power generation can be performed even if the direction in which the fluid F flows is reversed.

  In FIG. 11 (a), the fluid F flows from the left side of the page, and the vibration power generation unit 2 located on the upstream side on the left side of the page cannot generate power, but is located in the region R where power can be generated on the downstream side on the right side of the page. The vibration power generation unit 2 that generates power can generate power. In FIG. 11B, the fluid F flows from the right side of the page, and the vibration power generation unit 2 positioned on the upstream side on the right side of the page cannot generate power, but is positioned in the region R where power generation is possible on the downstream side of the left side of the page. The vibration power generation unit 2 that generates power can generate power.

(Embodiment 6)
The configuration of the fluid vibration power generator of Embodiment 6 is shown in FIG. The rotating unit 7 rotates the vibration power generation unit 2 with respect to the extending direction axis of the vortex generating unit 1. Since the vibration power generation unit 2 can always be located on the downstream side (direction in which the vortex is generated and passed) with respect to the direction in which the fluid R flows, like the weathercock, the power generation does not depend on the direction in which the fluid R flows. Can be performed.

(Embodiment 7)
In the seventh embodiment, vibration energy generated by the vortex generator 1 is converted into electric energy by the vibration power generator 2 to suppress vibration. Although the configuration is the same as that of the embodiment 1-6, the vibration power generation unit 2 is used as an electrical braking unit for damping the vibration.

  In general, when kinetic energy is converted into electrical energy, the reduced kinetic energy is generated by taking into account the energy conservation law. That is, vibration energy can be consumed by placing an appropriate electrical load. And vibration can also be suppressed by controlling an electrical load.

  In addition, since power generation and vibration suppression can be performed at the same time, for example, if excessive vibration that damages the device due to fluid conditions is likely to occur, by performing control such as increasing the electrical load in power generation, Vibrations can be suppressed and the device can be prevented from being destroyed. Further, even in a cable such as a normal electric wire in which the fluid vibration generator P is not normally installed, the vibration power generation unit 2 is mounted and a mechanism for controlling an electrical load is incorporated to suppress the vibration of the cable. Can be controlled.

(Embodiment 8)
FIG. 13 shows the configuration of the fluid vibration power generation device according to the eighth embodiment. The fluid vibration power generation device P includes a sheet-shaped vibration power generation unit 8 as the vibration power generation unit 2 with respect to Embodiment 1-7. The sheet-shaped vibration power generation unit 8 has flexibility and a sheet shape, is disposed on the downstream side of the vortex generation unit 1, and converts vibration energy of vibration caused by the vortex into electric energy.

  The seat-shaped vibration power generation unit 8 has a power generation part with a wide flag-like or sail-like area, and is flexible to reduce the increase in weight and mechanical load of the power generation part while receiving vibration with high efficiency. Long vibration power generation surface. As a result, as shown in FIG. 14, the excitation time for receiving one vortex V is extended by the structure in which the power generation portion increases the area for receiving the vortex V and the power generation portion is arranged along the direction in which the vortex V travels. . That is, the flag-shaped power generation portion increases the power generation efficiency by increasing the area and time for receiving the vortex V. Even when the direction of the fluid F changes, the seat-shaped vibration power generation unit 8 has a flag shape, so that it can receive the vibration of the swirl vortex V downstream after the direction of the fluid F changes.

(Embodiment 9)
The configuration of the fluid vibration power generator of Embodiment 9 is shown in FIG. The fluid vibration power generation device P of FIG. 15A further includes a communication line / power line 9 with respect to Embodiment 1-8. The fluid vibration power generation device P of FIG. 15B further includes a communication line 9S and a power line 9E with respect to Embodiment 1-8. The fluid vibration power generation device P has at least one of the communication line 9S and the power line 9E, and generates power integrally with at least one of the communication function and the power transmission function. Thereby, power transmission from another system, communication, and power generation by vibration can coexist.

(Embodiment 10)
The configuration of the fluid vibration power generator of Embodiment 10 is shown in FIG. The detachable support unit 10 as a power communication connection unit integrates the vortex generation unit 1 and the vibration power generation unit 2 with at least one of a power line 9E parallel to the vortex generation unit 1 and a communication line 9S parallel to the vortex generation unit 1. Connect so that The fluid vibration power generation device P further includes a communication line / power line 9 and a detachable support portion 10 with respect to Embodiment 1-8. In this configuration, the vortex generator 1 and the vibration power generator 2 can be attached to and detached from an existing cable such as the communication line 9S or the power line 9E using the detachable support part 10.

  Since existing cables can be used as a part of the fluid vibration power generation device P, existing wires and utility poles can be used for the fluid vibration power generation device P compared to the case of new installation, and the dedicated land And labor and cost of securing equipment can be saved.

(Embodiment 11)
The configuration of the fluid vibration power generator of Embodiment 11 is shown in FIGS. The vibration power generation unit 2 supplies power to at least one of the power line 9E parallel to the vortex generation unit 1 and the signal control device 9C of the communication line 9S parallel to the vortex generation unit 1.

  In FIG. 17, the vibration power generation unit 2 supplies power to the power line 9E. In FIG. 17A, the power line 9 </ b> E is built in the vortex generator 1 and is fed through the feeding unit 11. In FIG. 17B, the power line 9 </ b> E is connected to the vortex generating unit 1 through the detachable support unit 10 of the tenth embodiment, and is fed through the power feeding unit 11 and the power feeding line 12.

  In FIG. 18, the vibration power generation unit 2 supplies power to the signal control device 9C of the communication line 9S. In FIG. 18A, the communication line 9 </ b> S and the signal control device 9 </ b> C are built in the vortex generator 1, and the signal control device 9 </ b> C is supplied with power through the power supply unit 11 and the power supply line 12. In FIG. 18B, the communication line 9S is connected to the vortex generator 1 via the detachable support part 10 of the tenth embodiment, and the signal control device 9C is fed through the feed part 11 and the feed line 12. The If the signal control device 9C can be operated only by power supply by vibration power generation, it can be operated only by vibration power generation without supplying power from an external system, so that it can be used as an independent power source.

  In FIG. 19, the vibration power generation unit 2 supplies power to the signal control device 9C of the power line 9E and the communication line 9S. The power line 9E, the communication line 9S, and the signal control device 9C are built in the vortex generator 1, and the power line 9E and the signal control device 9S are supplied with power through the power supply unit 11 and the power supply line 12. When the power generator, the power line 9E, and the communication line 9S coexist, not only can the loss associated with power transmission be compensated, or the amount of power transmitted can be increased if sufficient power generation is obtained, The communication function can accept a function suitable for power generation.

Embodiment 12
The configuration of the fluid vibration power generator of Embodiment 12 is shown in FIG. The connection part 13 as a vortex generation power generation connection part connects the vortex generation part 1 and the vibration power generation part 2 so as to be integrated. The vortex generator 1 and the vibration power generator 2 can be combined or divided using the connecting portion 13.

  A configuration in which the vibration power generation unit 2 is intensively installed on a portion with large vibration amplitude and high power generation efficiency, while the vibration power generation unit 2 is not removed or installed on a portion with low vibration amplitude and low power generation efficiency Then, the vibration power generation unit 2 can be used efficiently in a necessary part, and the number of vibration power generation units 2 can be reduced and the power generation efficiency can be improved.

  When power generation is not performed, it can be expected that the vibration power generation unit 2 is removed and stored to prevent deterioration of the power generation device over time. Similarly, when no wind blows, the vibration power generation unit 2 can be removed and easily moved to a place where sufficient wind power can be obtained.

(Embodiment 13)
The configuration of the fluid vibration power generator of Embodiment 13 is shown in FIGS. The fluid vibration power generation device P has a configuration in which the vortex generation unit 1 and the vibration power generation unit 2 can be attached to and detached from an existing cable such as the communication line 9S or the power line 9E using the connection unit 13 of the twelfth embodiment.

  In FIG. 21, the detachable vortex generator 1 and the detachable vibration power generation unit 2 via the connection unit 13 can be attached to and detached from the communication line / power line 9 which is an existing cable. The vortex generator 1 contributes to vortex generation, and the communication line / power line 9 also contributes to vortex generation. FIG. 21 (a) and FIG. 21 (b) show the connection and disconnection of each component, respectively.

  In FIG. 22, the detachable vibration power generation unit 2 can be attached to and detached from the communication line / power line 9, which is an existing cable. The communication line / power line 9 contributes to vortex generation. FIG. 22A and FIG. 22B show the connection time and non-connection time of each component, respectively.

  Since existing cables can be used as a part of the fluid vibration power generation device P, existing wires and utility poles can be used for the fluid vibration power generation device P compared to the case of new installation, and the dedicated land And labor and cost of securing equipment can be saved.

  When operating as a unit type of a certain length, if vibration energy cannot be expected, the vibration power generation unit 2 is omitted, or the resistance of the fluid is partly strong and the load on the cable is partly concerned Can omit the vortex generator 1 at the corresponding location.

  If there is a period when vibration power generation due to fluids cannot be expected, such as when there is a season when the wind does not blow, or if there is an undesirable effect on the power generation device such as snowfall or sea breeze for a certain period of time, remove the power generation device and move it to another location. It can also be stored. In addition, for example, it is possible to remove the power generation device from a place where the wind does not blow and move and use the power generation device to the place where the wind blows. Therefore, it is possible to efficiently operate a limited number of power generation devices. .

  The fluid vibration power generation device according to the present invention can be applied to a power generation device using natural energy that is required to increase the amount of power generation and reduce the cost and to prevent global warming.

P: Fluid vibration power generation device S: Support portion F: Fluid N: Negative pressure region V: Karman vortex T: Pipe E: Output portion R: Region 1: Vortex generator 2: Vibration power generator 3: Vortex receivers 4, 5 : Vortex frequency stabilizing unit 6: Fluid intake unit 7: Rotating unit 8: Sheet-shaped vibration power generation unit 9: Communication line / power line 9S: Communication line 9E: Power line 9C: Signal control device 10: Detachable support unit 11: Power feeding unit 12: Feed line 13: Connection part

Claims (8)

A vortex generator having a cable shape and branching fluid upstream and generating vortex downstream;
A vibration power generation unit that is disposed on the downstream side of the vortex generation unit and converts vibration energy of vibration caused by the vortex into electrical energy;
A load control unit that suppresses vibration of the vibration power generation unit by increasing an electrical load that consumes the electrical energy according to an increase in the vibration energy;
A fluid vibration power generation device comprising: The projected area on the upstream side of the vortex generator is adjusted so that the resonance frequency of the oscillating power generator is substantially equal to the vibration frequency of the vortex,
The fluid vibration power generation device according to claim 1. The vibration power generation unit is connected to the vortex generation unit so as to extend in a plurality of substantially vertical directions with respect to an extension direction axis of the vortex generation unit,
The fluid vibration power generator according to claim 1 or 2. A rotating unit that rotates the vibration power generation unit with respect to the extending direction axis of the vortex generating unit;
The fluid vibration power generator according to claim 1 or 2. The vibration power generation unit has flexibility and a sheet shape,
The fluid vibration power generator according to any one of claims 1 to 4 . The vibration power generation unit supplies power to at least one of a power line parallel to the vortex generation unit and a signal control device of a communication line parallel to the vortex generation unit,
The fluid vibration power generator according to any one of claims 1 to 5 . A power communication connection unit that connects the vortex generation unit and the vibration power generation unit so as to be integrated with at least one of a power line parallel to the vortex generation unit and a communication line parallel to the vortex generation unit; Characterized by the
The fluid vibration power generator according to any one of claims 1 to 6 . The vortex generator and the oscillating power generator are further connected to connect the vortex generator and the vibration power generator so as to be integrated,
The fluid vibration power generator according to any one of claims 1 to 7 .

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