JP3855165B2 - Solar radiation concentrator - Google Patents

Description

Technical field
The present invention relates to a solar radiation concentration device used in a solar thermal system, a solar thermal power generation system, a solar thermal cooker, a solar furnace, a solar power generation system, a distillation apparatus, a solar lighting apparatus, a chemical reaction system, or the like.
Background art
Background art that uses solar radiation energy includes, for example, a photovoltaic power generation system, a solar heat system, a solar furnace, a salt water desalination system, and other distillation apparatuses, a chemical reaction system, and a solar lighting system.
The energy density of solar radiation is about 1 kW / m ² However, solar radiation is concentrated when operating these energy systems at high energy densities. Examples of a condensing element that concentrates solar radiation include a Fresnel lens and a parabolic mirror.
When solar radiation is concentrated on a solar energy conversion device using a condensing optical system equipped with such a condensing element, generally, the optical axis of the condensing optical system coincides with the incident direction of solar radiation. This is important for obtaining a high concentration ratio. That is, in a solar energy system equipped with a tracking mechanism that rotates the condensing element according to a change in the incident direction of solar radiation and makes the solar energy conversion device coincide with the focal point of the condensing element, high condensing Solar radiation is used in the ratio.
In order to operate such a solar energy system for a long period of time, durability to strong winds and the like is required. When the height of the light collecting element is increased, the adverse effect due to wind pressure is remarkably increased. For this reason, when a condensing element extending at a high altitude is used, the cost for maintaining the mechanical strength of the condensing element and the tracking mechanism increases. For this reason, there has been a limit to the use of a large condensing element.
Furthermore, there is a problem associated with the increase in the size of the same tracking mechanism when solar radiation is applied to a fixed region using a large plane mirror or the like.
As another background art, an energy system equipped with a heliostat group is known. Such an energy system includes a plurality of planar reflecting mirrors and a plurality of tracking devices that respectively drive the plurality of planar reflecting mirrors. Solar radiation reflected by the plurality of planar reflectors is concentrated in a fixed solar radiation concentration region. When solar radiation is concentrated at a high concentration ratio, a large number of high-precision tracking devices are mounted. However, in this case, the cost of the tracking mechanism is high and its reduction is required. Furthermore, when using a large plane reflecting mirror, there are adverse effects due to the wind pressure described above, or problems associated with an increase in the size of the tracking mechanism.
As yet another background art made from this point of view, a large number of small reflecting mirrors each capable of rotating around a pivot center point on an axis, a control body, and each small reflecting mirror are connected to the control body. A solar ray condensing device having a common link is disclosed in Japanese Patent Publication No. 51-27347. As the control body moves, each small reflecting mirror rotates at the same amount of change. When the control body is at a specific position, each small reflecting mirror has a surface angle for reflecting and condensing parallel light beams having a specific incident angle at a predetermined condensing position. By controlling the position of the control body in response to a change in the incident angle of the parallel incident light beam, the solar light collecting device is designed to concentrate the reflected light of each small reflecting mirror at the light collecting position. ing.
However, when considering a plurality of reflecting mirrors as a condensing optical system for converging solar radiation to the predetermined condensing position, in the solar light condensing device, condensing light is increased as the amount of change in incident angle of incident light increases. There was a problem that the ratio was significantly impaired. The Japanese Patent Application Laid-Open No. 51-27347 does not disclose a reference to such a reduction in the concentration ratio and a suggestion for overcoming it.
The present invention has been made in view of the above, and an object of the present invention is to solve the above problems and other problems.
Another object of the present invention is to provide a novel solar radiation concentrating device that collectively drives a plurality of reflecting mirrors, which realizes a high condensing ratio for a wide range of incident angles of incident light. .
Still another object of the present invention is to provide a novel solar radiation concentrator that utilizes solar energy at a high concentration ratio.
Another object of the present invention is to provide a novel solar radiation concentrating device with high solar radiation collection efficiency.
Another object of the present invention is to provide a novel low cost solar concentrator.
Still another object of the present invention is to improve the durability of the solar energy system against an external environment such as wind in the solar radiation concentrator.
Disclosure of the invention
According to one embodiment of the present invention, a novel solar radiation concentrator is provided. The solar radiation concentrating device includes a plurality of reflecting mirrors arranged on a reflecting mirror array surface, a reference point providing member for determining a reference point for each of the plurality of reflecting mirrors, and the plurality of reflecting mirrors. And a cam mechanism that rotates all around the reference point. The cam mechanism has a predetermined shape such that the plurality of reflectors concentrate incident solar radiation. The cam mechanism may have a flat cam. The cam mechanism may include a plurality of styluses that come into contact with the plurality of reflecting mirrors and a guide member that accommodates the plurality of styluses. The solar radiation concentrating device has a plurality of reflecting mirrors arranged in a straight line perpendicular to the reflecting mirror arrangement plane so that incident solar radiation follows a predetermined incident direction region in a moving coordinate system moving along with the reflecting mirror arrangement plane. You may further have the rotation mechanism rotated around. In this case, the cam mechanism rotates each of the plurality of reflecting mirrors around the reference point in response to a change in the incident angle of the incident solar radiation with respect to the reflecting mirror array surface.
Further, the solar radiation concentrating device may be provided with a monitoring surface provided at a position other than the condensing position by the plurality of reflecting mirrors, and a monitoring reflector for reflecting solar radiation on the monitoring surface. When the solar radiation reflected by the plurality of reflecting mirrors is collected at a predetermined position, the monitoring reflecting mirror reflects the solar radiation at a predetermined position on the monitoring surface.
Furthermore, an optical sensor provided on the monitoring surface may be provided. In this case, the cam mechanism is controlled so that the monitoring reflector reflects solar radiation to a predetermined position on the monitoring surface based on a signal from the optical sensor.
According to another embodiment of the present invention, a plurality of reflecting mirrors each having an acute ridgeline, a reference point providing member, and a plurality of joints that define the center point of each rotational movement of the plurality of reflecting mirrors There is provided a solar radiation concentrating device having a cam mechanism that simultaneously rotates the plurality of reflecting mirrors around respective center points. The cam mechanism includes a cam having a predetermined shape such that the plurality of reflecting mirrors concentrate incident solar radiation. When each reference point providing member has a flat portion, each joint may be arranged on the flat portion. When the cam mechanism has a plurality of plane portions, the plurality of joints may be respectively disposed on the plurality of plane portions.
According to still another embodiment of the present invention, a plurality of reflecting mirrors, a reference point providing member, a plurality of joints that define the center point of each of the plurality of reflecting mirrors, and the plurality of reflecting Provided is a solar radiation concentrating device having a cam mechanism for rotating the mirrors simultaneously around the respective center points, and an in-plane rotational motion preventing mechanism for preventing the reflecting mirrors from rotating within the reflecting surfaces of the reflecting mirrors. Is done. The cam mechanism includes a cam having a predetermined shape such that the plurality of reflecting mirrors concentrate incident solar radiation.
BEST MODE FOR CARRYING OUT THE INVENTION
In order to describe the present invention in more detail, the present invention will be described with reference to the accompanying drawings. Throughout the several views, the same reference numerals indicate the same or corresponding parts.
A solar radiation concentrator according to one embodiment of the present invention will be described with reference to FIGS. 1-6. FIG. 1 is a conceptual diagram illustrating a solar radiation concentrating device according to an embodiment of the present invention.
In FIG. 1, the solar radiation concentration apparatus 1 includes a plurality of reflecting mirrors 10, a plurality of reference point providing members 20, and a cam mechanism 30.
In order to receive solar radiation reflected by the solar radiation concentrating device 1, a solar energy conversion device 100 is installed above the solar radiation concentrating device 1. As the solar energy conversion device 100, a solar cell, a solar thermal device, a distillation device, a heat engine, a solar thermal power generation system, a solar thermal closed channel gas turbine generator, a solar lighting system, and / or a solar furnace may be used. .
In FIG. 1, an arrow X, an arrow Y, and an arrow Z represent an XYZ orthogonal coordinate system that moves accompanying the solar radiation concentration apparatus 1. The arrow X, arrow Y, and arrow Z represent the X axis, the Y axis, and the Z axis, respectively. The XYZ rectangular coordinate system is used for ease of the following explanation. Furthermore, the arrow S indicates the direction of incident solar radiation. The arrow S in FIG. 1 is parallel to the Z axis.
Each reflecting mirror 10 is a plane reflecting mirror. Alternatively, a convex mirror or a concave mirror may be used. FIG. 1 shows nine reflecting mirrors. In general, the number of the plurality of reflecting mirrors 10 is arbitrary. For example, 2 to 1,000,000 reflecting mirrors may be mounted on the solar radiation concentration apparatus 1.
Each of the plurality of reflecting mirrors 10 is rotatable about the plurality of reference point providing members 20 as rotation centers. The plurality of reference point providing members 20 are firmly fixed to the pedestal 80 by members not shown.
The plurality of reference point providing members 20 are arranged on a horizontal reflector arrangement surface. Alternatively, the plurality of reference point providing members 20 may be arranged along a slope, a vertical surface, or a curved surface. Further, the plurality of reference point providing members 20 may be integrated members that define the reflecting mirror array surface. In FIG. 1, nine reference point providing members 20 are arranged in 3 rows and 3 columns. In general, the arrangement form of the plurality of reference point providing members 20 is arbitrary. For example, the plurality of reference point providing members may be arranged on a lattice point having an arbitrary two-dimensional periodicity or a plurality of triangular lattice points covering the reflecting mirror array surface. Alternatively, the plurality of reference point providing members 20 may be arranged without symmetry or periodicity. Furthermore, the outline of the reflecting mirror array surface may be an arbitrary shape such as a circle or a hexagon.
The cam mechanism 30 includes a cam 40, a cam drive member 50, a cam drive rod 52, a plurality of styluses 60, and a plurality of styluses 70. The cam driving member 50 is firmly fixed to the pedestal 80. The cam drive member 50 drives the cam 40 along the direction parallel to the arrow X via the cam drive rod 52. Guide rails, guide grooves and the like not shown may be provided. For example, a motor and a screw may be used as the cam drive member and the cam drive rod, respectively.
The plurality of styluses 60 can move only in a direction parallel to the arrow Z. Each stylus 60 contacts the cam 40. The X coordinate and Y coordinate in the XYZ coordinate system of the contact point between each stylus 60 and the cam 40 are invariable. The Z coordinate of the contact changes with the movement of the cam 40 according to the shape of the cam 40.
The plurality of styluses 70 can move only in a direction parallel to the arrow Z. Each stylus 70 is in contact with the cam 40. The X coordinate and Y coordinate in the XYZ coordinate system of the contact point between each stylus 70 and the cam 40 are not changed. The Z coordinate of the contact changes with the movement of the cam 40 according to the shape of the cam 40.
The direction of the reflecting surface of each reflecting mirror 10 changes according to changes in the Z coordinate of the stylus 60 and the stylus 70 that are in contact with the reflecting mirror 10. That is, the direction of the reflecting surface of each reflecting mirror 10 changes with the movement of the cam 40.
FIG. 2 is a diagram illustrating the cam 40. A curved surface having a predetermined shape is formed at a portion where the cam 40 contacts the plurality of styluses 60 and the plurality of styluses 70.
FIG. 3 is a cross-sectional view illustrating a cross section AA of FIG. When the X coordinate of the cam 40 moves in the increasing direction, the Z coordinates of the plurality of styluses 60 and the plurality of styluses 70 increase.
The reflecting surface of each reflecting mirror 10 is from a contact point between the reflecting mirror 10 and the stylus 60, a contact point between the reflecting mirror 10 and the stylus 70, and a reference point provided by the reference point providing member 20. Is parallel to a plane passing through the three points.
FIG. 4 is a cross-sectional view illustrating a cross section BB of FIG. The shape of the cam 40 in contact with the stylus 60 and the plurality of styluses 70 is determined so that solar radiation reflected from the plurality of reflecting mirrors 10 is concentrated on the solar energy conversion device.
When a high concentration ratio is required, in order to smoothly slide the plurality of styluses 60, a pulse vibration generator (not shown) that intermittently microvibrates the cam 40 may be provided. Furthermore, a guide member that accommodates the plurality of styluses 60 and the plurality of styluses 70 may be disposed between the cam 40 and the plurality of reflecting mirrors 10.
FIG. 5 illustrates an example of the structure of a guide member that can be used for the solar radiation concentrating device of FIG. The plurality of styluses 60 and the plurality of styluses 70 are in a fitting relationship with the guide member 120.
In particular, when a high concentration ratio is required, in order to suppress deformation due to the weight of the plurality of reference point providing members 20 and / or the cam mechanism 30, they are filled with a liquid that provides buoyancy, for example, water. It may be housed in a non-contained container. In this case, a composite material having a specific gravity close to the density of water may be used. The container may have a transparent cover and condensation prevention means. The plurality of reflecting mirrors 10 may also be immersed in water. Furthermore, an appropriate water treatment may be performed to prevent microorganisms from growing in the water. Furthermore, an appropriate process for preventing bubbles from staying in water, for example, a process for removing dissolved gas in a reduced-pressure atmosphere may be performed.
An example of the operating environment of the solar radiation concentration apparatus 1 will be described below. In FIG. 1, the solar radiation concentrating device 1 has a structure rotatable around a straight line passing through the solar energy conversion device 100 and parallel to the Z axis. For this purpose, a rotation mechanism 90 is provided. In the XYZ coordinate system that moves in association with the reflector array surface of the solar radiation concentrator, the rotation mechanism 90 rotates the pedestal 80 so that the Y component of the vector parallel to the incident solar radiation becomes zero.
FIG. 6 is a conceptual diagram illustrating one state of the solar radiation concentrating device when incident solar radiation changes. In FIG. 6, incident solar radiation parallel to the arrow S is obliquely incident on the reflecting mirror array surface. In this case, as described above, the pedestal 80 rotates so that the Y coordinate of the vector parallel to the incident solar radiation in the XYZ coordinate system becomes zero. In order to confirm this state, an incident direction indicating member 110 is provided. The incident direction indicating member 110 is firmly connected to the pedestal 80. Further, an instruction line 112 parallel to the X axis is drawn on the pedestal 80. As described above, since the XYZ coordinate system is a coordinate system that moves together with the solar radiation concentration device 1, even when the pedestal 80 rotates, the indicator line 112 has a geometrical relationship parallel to the X axis. maintain. The position of the pedestal 80 is adjusted so that the shadow by the incident direction indicating member 110 is parallel to the indicating line 112. That is, the position of the pedestal 80 is controlled so that the Y component of the vector parallel to the incident solar radiation is always zero.
In such a controlled state, the change in the direction of the unit vector parallel to the incident solar radiation in the XYZ coordinate system is limited to a change only in the XZ plane. That is, only the elevation angle of incident solar radiation changes in the XYZ coordinate system.
In the XYZ coordinate system, the shape of the cam 40 is determined so that solar radiation incident obliquely along the X axis is concentrated on the solar energy.
That is, when the direction of the incident solar radiation changes, the cam 40 performs a predetermined motion in response to this, so that the plurality of reflecting mirrors 10 always concentrate the incident solar radiation on the solar energy conversion device 100. This achieves a high light collection ratio in a wide range of incident angles of solar radiation.
If the solar radiation concentrator has multiple reflectors, the cam may be divided into a plurality of parts.
FIG. 7 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention. In FIG. 7, the solar radiation concentrating device 1 includes a plurality of reflecting mirrors 10, a plurality of reference point providing members 20, and a cam mechanism 30.
The cam mechanism 30 includes a cam 40, a first cam drive member 50, a first cam drive rod 52, a second cam drive member 54, a second cam drive rod 56, and a plurality of styluses. 60 and a plurality of styluses 70. The first cam driving member 50 and the second cam driving member 54 are firmly fixed to the base 80, respectively. The pedestal 80 is fixed to the installation surface.
The first cam drive member 50 drives the cam 40 in a direction parallel to the arrow X via the first cam drive rod 52. The first cam driving member 50 drives the cam 40 at a cycle of one day. A watch (not shown) may be provided for controlling the drive of the cam 40.
Further, the second cam drive member 54 drives the cam 40 in a direction parallel to the arrow Y via the cam drive rod 56. The second cam driving member 54 periodically drives the cam 40 at a cycle of one year.
Friction reducing members (not shown) may be provided between the cam 40 and the first cam drive rod 52 and between the cam 40 and the second cam drive rod 56. In this case, the movement of the cam in the XY plane is performed smoothly.
The cam 40 has a predetermined shape such that the plurality of reflecting mirrors 10 concentrate solar radiation on the solar energy conversion device 100 throughout the year.
FIG. 8 is a conceptual diagram illustrating an example of the installation state of the solar radiation concentration apparatus according to the present invention. The solar radiation concentrating device 1 is disposed on the water surface of the pond 150. For this purpose, a floating body (not shown) having buoyancy is used as a pedestal. The solar radiation concentrating device 1 is rotatable around a straight line 140 passing through the solar energy conversion device 100 perpendicular to the water surface of the pond 150. The use of water buoyancy greatly reduces the power required to rotate the solar radiation. The solar radiation concentrating device 1 illustrated in FIG. 8 has a square outline. Alternatively, the solar radiation concentrating device may have another shape, for example, a circular shape. A ridge or wave-dissipating member may be provided.
FIG. 9 is a conceptual diagram illustrating an example of a reflecting mirror and a reference point providing member of the solar radiation concentrating device according to the present invention. In FIG. 9, the reflecting mirror 10 is connected to the reference point providing member 20 through the joint 22. For example, the reflecting mirror 10 may be connected to the reference point providing member 20 via an elastic string. The reflecting mirror 10 has a sharp tip 10A. The reference point providing member 20 has a flat surface 20A. The tip 10A slides on the plane 20A with the joint 22 as the center of rotation. FIG. 10 is a conceptual diagram illustrating one state when the direction of the reflecting mirror is changed. The tip 10A is constrained along the plane 20A, but the reflecting surface of the reflecting mirror 10 can be oriented in an arbitrary direction. On the other hand, the rotation of the reflecting mirror 10 in the reflecting surface is suppressed by this constraint. For this reason, the operation by the cam mechanism 30 is stabilized. Furthermore, the shift | offset | difference of a condensing position is suppressed.
In order to suppress the shielding of solar radiation by the reference point providing member, the upper part of the reference point providing member may be configured by a transparent body such as a transparent glass plate.
FIG. 11 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention. FIG. 12 is a conceptual diagram illustrating the upper part of the solar radiation concentrating device illustrated in FIG.
11 and 12, the solar radiation concentrating device 1 includes a plurality of reflecting mirrors 10 each having an acute linear tip 10A, a cam mechanism 30, a base body 80 that operates as a floating body, and a rotating mechanism 90. And have.
The cam mechanism 30 includes a plurality of reference point providing members 20, a plurality of joints 22, a plurality of cams 40, a pair of cam drive members 50, a connecting member 52 that connects the plurality of cams 40, and a plurality of cam mechanisms 40. It has a stylus 60, a plurality of styluses 70, a plurality of support members 24 that support the reference point providing member 20 on the base body 80, and a plurality of guide members 120. The guide member 120 is fixed to the reference point providing member 20.
The cam driving mechanism 30 drives the plurality of reflecting mirrors 10 at a time so that the solar radiation reflected by the plurality of reflecting mirrors 10 is concentrated in a condensing region (not shown).
An indicator line 112 for indicating a predetermined incident direction of solar radiation to the solar radiation concentrating device 1 is drawn in FIG. The plurality of cams 40 are driven in a direction perpendicular to the direction indicated by the instruction line.
FIG. 13 is a conceptual diagram illustrating another example of the reference point providing member of the solar radiation concentrating device according to the present invention. The reference point providing member 20 has a frame structure having a V-shaped valley. That is, the reference point providing member 20 has a truss structure. A joint 22 is deployed at the bottom of the valley. In this case, since the absorption of incident and reflected solar radiation by the reference point providing member is limited to only the outer peripheral frame, the utilization factor of sunlight is improved.
FIG. 14 is a conceptual diagram illustrating another example of the reflector and the stylus of the solar radiation concentrating device according to the present invention. In FIG. 14, the stylus 60 has a spherical tip 60A. The tip 60A is mounted in a guide groove 10A formed on the back surface of the reflecting mirror 10. As a result, the stylus 60 and the reflecting mirror are always in close contact with each other, so that even when a strong wind acts on the reflecting mirror 10, the reflecting mirror is prevented from being blown by the strong wind.
FIG. 15 is a conceptual diagram illustrating still another example of the reflector and stylus of the solar radiation concentrating device according to the present invention. In FIG. 15, the stylus 60 has a spherical contact portion 60 </ b> B and a stopper member 60 </ b> C disposed at the tip of the stylus 60. The stylus 60 is fitted into a hole 10 </ b> B drilled in the reflecting mirror 10. Thereby, even when a strong wind acts on the reflecting mirror 10, the reflecting mirror is prevented from being blown by the strong wind.
FIG. 16 is a conceptual diagram illustrating still another example of the reflector, the stylus, and the reference point providing member of the solar radiation concentrating device according to the present invention. In FIG. 16, the reflecting mirror 10 having an acute tip 10 </ b> A is connected to the stylus 60 via a joint 62. The joint 62 is disposed on the flat surface portion 60 </ b> A of the stylus 60. Therefore, the tip 10A and the flat portion 60A are always in contact. In this state, the tip 10A can rotate around the joint 62 as a rotation center. The reflecting mirror 10 can slide on a reference point providing member 20 fixed by fixing means (not shown). Further, the reflecting mirror 10 can slide on the stylus 70. The reflecting surface of the reflecting mirror 10 is parallel to a plane defined by the joint 62, the reference point providing member 20, and the stylus 70. The lower end 60B of the stylus 60 contacts a cam (not shown).
A weight 320 is provided on the reflector 10. The weight 320 promotes recovery of the reflecting mirror 10 when the reflecting mirror 10 is lifted by a strong wind.
FIG. 17 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention. FIG. 18 is a conceptual diagram illustrating the upper part of the solar radiation concentrating device illustrated in FIG.
17 and 18, the solar radiation concentrating device 1 includes a plurality of reflecting mirrors 10 each having an acute straight tip 10A, a cam mechanism 30, a base body 80, and a rotating mechanism 90.
The cam mechanism 30 includes a plurality of reference point providing members 20, a plurality of joints 22, a plurality of cams 42, a plurality of cams 44, a pair of cam drive members 50, the plurality of cams 42, and the plurality of the plurality of cams. A connecting member 52 for connecting the cam 44 and a plurality of supporting members 24 for supporting the reference point providing member 20 on the base body 80 are provided.
Each reflector 10 is in direct contact with the cams 42 and 44. The cam driving mechanism 30 drives the plurality of reflecting mirrors 10 at a time so that the solar radiation reflected by the plurality of reflecting mirrors 10 is concentrated in a condensing region (not shown). The shape of each cam is formed into a shape suitable for suitably performing this light collecting operation.
In the above, the solar radiation concentrating device according to the present invention has been described in detail. In addition, auxiliary means for suitably operating the solar radiation concentrating device and the solar radiation concentrating method according to the present invention, for example, a Fresnel concave lens that converts a convergent light beam reflected by the solar radiation concentrating device into a parallel light beam, Spectroscopic element, reflected light amount adjusting means, heat storage device, heat transfer member, heat insulating member, temperature adjusting means, optical power meter, adjusting means for adjusting the light condensing ratio, reflected light from the condensing area reaches the external area With a light-shielding side wall that prevents light, a transparent cover that blocks dust and strong winds, an information storage medium, an arithmetic processor, a guide member for preventing contact between reflecting mirrors, and / or an encoder for position data of a moving member The present invention may be implemented.
Furthermore, the structure described above may be implemented with various changes. For example, the cam mechanism may include a pedestal that supports the planar cam and a bias cam that shifts the position of the pedestal. Alternatively, the cam mechanism may be a rotary cam. Furthermore, the cam mechanism may have a plurality of reflecting mirror vertical bars for driving the reflecting mirrors.
That is, the invention disclosed herein provides a novel solar radiation concentrator, but in light of the teachings disclosed in the foregoing detailed description, the practice of the invention describes the best mode of the invention. The present invention is not limited to the above-described embodiment, and may be implemented in other forms with various modifications within the scope of the following claims, or the best implementation in the above-described embodiment It may be carried out without additional forms and components added to explain the form.
Industrial applicability
As described above, the present invention provides a solar radiation concentrating device having a high concentration ratio with respect to a wide range of incident angles of solar radiation. Furthermore, the solar radiation concentrating device according to the present invention provides a solar irradiation device, a solar power generation system, a solar thermal system, a distillation apparatus, a heat engine, a solar thermal power generation system, a solar thermal closed channel gas turbine power generation system, a solar lighting system, and / or Or a new solar energy system with a solar furnace is realized.
[Brief description of the drawings]
FIG. 1 is a conceptual diagram illustrating a solar radiation concentrating device according to an embodiment of the present invention.
FIG. 2 is a diagram illustrating the cam illustrated in FIG.
FIG. 3 is a cross-sectional view illustrating a cross section AA of the cam illustrated in FIG.
FIG. 4 is a cross-sectional view illustrating a cross section BB of the cam illustrated in FIG.
FIG. 5 is a cross-sectional view illustrating an example of the structure of a guide member that can be used for the solar radiation concentrating device illustrated in FIG.
FIG. 6 is a conceptual diagram illustrating one state when the direction of incident solar radiation changes in the solar radiation concentrating device illustrated in FIG. 1.
FIG. 7 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention.
FIG. 8 is a conceptual diagram illustrating an example of the installation state of the solar radiation concentration apparatus according to the present invention.
FIG. 9 is a conceptual diagram illustrating an example of the reflecting mirror and the reference point providing member of the solar radiation concentrating device according to the present invention.
FIG. 10 is a conceptual diagram illustrating one state when the direction of the reflecting mirror illustrated in FIG. 9 is changed.
FIG. 11 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention.
FIG. 12 is a conceptual diagram illustrating the upper part of the solar radiation concentrating device illustrated in FIG.
FIG. 13 is a conceptual diagram illustrating another example of the reference point providing member of the solar radiation concentrating device according to the present invention.
FIG. 14 is a conceptual diagram illustrating another example of the reflector and the stylus of the solar radiation concentrating device according to the present invention.
FIG. 15 is a conceptual diagram illustrating yet another example of the reflector and stylus of the solar radiation concentrating device according to the present invention.
FIG. 16 is a conceptual diagram illustrating still another example of the reflector, the stylus, and the reference point providing member of the solar radiation concentrating device according to the present invention.
FIG. 17 is a conceptual diagram illustrating a solar radiation concentrating device according to still another embodiment of the present invention.
FIG. 18 is a conceptual diagram illustrating the upper part of the solar radiation concentrating device illustrated in FIG.

Claims (8)

A plurality of reflecting mirrors arranged on the reflecting mirror array surface, a reference point providing member for defining a reference point for the rotational movement of each of the reflecting mirrors, and the plurality of reflecting mirrors around the respective reference points at the same time A solar radiation concentrating device characterized in that the cam mechanism has a cam having a predetermined shape such that the plurality of reflecting mirrors concentrate incident solar radiation. . The solar radiation concentrating device according to claim 1, wherein the cam mechanism has a flat cam. The solar radiation concentrating device according to claim 1, wherein the cam mechanism includes a plurality of styluses that contact the plurality of reflecting mirrors, and a guide member that accommodates the plurality of styluses. A rotating mechanism that rotates the plurality of reflecting mirrors around a straight line perpendicular to the reflecting mirror array plane so that incident solar radiation follows a predetermined incident direction region in a moving coordinate system that moves in association with the reflecting mirror array plane; The cam mechanism rotates each of the plurality of reflecting mirrors around the reference point in response to a change in an incident angle of the incident solar radiation with respect to the reflecting mirror array surface. The solar radiation concentrating device according to claim 1. A plurality of reflecting mirrors each having an acute ridgeline, a reference point providing member, a plurality of joints that define the center point of each of the plurality of reflecting mirrors, and the plurality of reflecting mirrors at each center point And a cam mechanism having a cam having a predetermined shape such that the plurality of reflecting mirrors concentrate incident solar radiation. Radiation concentrator. 6. The solar radiation concentrating device according to claim 5, wherein each reference point providing member has a flat portion, and each joint is arranged on the flat portion. 6. The solar radiation concentrating device according to claim 5, wherein the cam mechanism has a plurality of flat portions, and the plurality of joints are respectively disposed on the plurality of flat portions. A plurality of reflecting mirrors, a reference point providing member, a plurality of joints that define the center point of each of the plurality of reflecting mirrors, and the plurality of reflecting mirrors are simultaneously rotated around the respective center points. And a cam mechanism that prevents rotation of the reflecting mirror within the reflecting surface of each reflecting mirror. The cam mechanism includes a plurality of reflecting mirrors that receive incident solar radiation. A solar radiation concentrating device comprising a cam having a predetermined shape for concentrating the light.

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