JP7735659B2 - solar concentrator - Google Patents

Description

This disclosure relates to a solar concentrating device.

Sunlight can be used for a variety of purposes. For example, Patent Document 1 discloses a system that uses sunlight to generate power. This system comprises a center mirror supported at a height of approximately 20 m from the ground, a power generation area installed below the center mirror and containing multiple solar power generation modules, and multiple heliostats arranged radially around the center mirror in an area including the west, north, and east. Sunlight reflected from the multiple heliostats is concentrated on the center mirror and directed from the center mirror to the power generation area.

JP 2012-38953 A

In the system described in Patent Document 1, multiple heliostats are arranged radially around a center mirror. Therefore, constructing such a large-scale system requires a large area of flat land, which limits the locations where it can be constructed. Furthermore, the device needs to be redesigned each time depending on the amount of sunlight to be concentrated (the scale of the system), which increases the time and cost required to construct the system.

In consideration of the above-mentioned issues, the present disclosure aims to provide a sunlight concentrating device that can adjust the amount of sunlight concentrated (system scale) without requiring a large area of flat land or redesigning the device depending on the system scale.

One aspect of the present disclosure is a solar concentrating device comprising: a heliostat unit having a heliostat and a first body that supports the heliostat, wherein the first body extends above the heliostats and an upper part of the first body includes a portion that contacts a bottom of another heliostat unit from below; and a concentrator unit having a concentrator that collects light reflected from the heliostats and a second body that supports the concentrator, wherein the second body extends above the concentrator and an upper part of the second body includes a portion that contacts a bottom of another concentrator unit from below , wherein the first body includes a loading portion that extends above the heliostats, and the loading portion includes a frame structure and a plate that is disposed on top of the frame structure, and the loading portion is disposed so as to be spaced apart rearward from the heliostats in a direction opposite to the direction in which the heliostats reflect light .

The first body and the second body may be separate bodies.

The first body and the second body may be connected to each other.

The height of the second body may be equal to the height of the first body.

The bottom of the first body may include a first recess, and the top of the first body may include a first protrusion that engages with the first recess of another heliostat unit.

The first protrusion may be removable from the first body.

The bottom of the second body may include a second recess, and the top of the second body may include a second protrusion that engages with the second recess of another light-collecting unit.

The second protrusion may be removable from the second body.

This disclosure makes it possible to provide a sunlight concentrating device that can adjust the amount of sunlight concentrated (system size) without requiring a large area of flat land or the need to redesign the device depending on the system size.

FIG. 1 is a schematic perspective view showing a sunlight collecting device according to the first embodiment. FIG. 2 is a schematic side view of the solar concentrator of FIG. FIG. 3 is a schematic plan view showing the solar concentrating device of FIG. FIG. 4 is a schematic perspective view showing a solar concentrating system including a plurality of the solar concentrating devices of FIG. FIG. 5 is a schematic side view of the solar concentrating system of FIG. FIG. 6 is a schematic side view showing another solar concentrating system including the solar concentrating device of FIG. FIG. 7 is a schematic side view showing a sunlight collecting system including a plurality of sunlight collecting devices according to the second embodiment.

Embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. Dimensions, materials, specific numerical values, etc. shown in the embodiments are merely examples for ease of understanding and do not limit the present disclosure unless otherwise specified. Note that in this specification and drawings, elements having substantially the same function and configuration are designated by the same reference numerals to avoid redundant explanation. Elements not directly related to the present disclosure are not shown.

[First embodiment]
Fig. 1 is a schematic perspective view showing a sunlight collecting device 10 according to a first embodiment. Fig. 2 is a schematic side view showing the sunlight collecting device 10 of Fig. 1. Fig. 3 is a schematic plan view showing the sunlight collecting device 10 of Fig. 1.

With reference to FIG. 1 , a solar concentrating device (which may also be simply referred to as "device" in this disclosure) 10 includes a heliostat unit 1 and a concentrator unit 2. In this embodiment, the heliostat unit 1 and the concentrator unit 2 are separate entities. In this embodiment, the heliostat unit 1 and the concentrator unit 2 are disposed on the ground G. The heliostat unit 1 and the concentrator unit 2 may, for example, be mounted on a base (not shown) on the ground G, or may be disposed directly on the ground G.

The heliostat unit 1 has a heliostat 11 and a first main body 12. The heliostat unit 1 may further include other components not shown (e.g., a control device and a power supply for controlling the attitude of the heliostat 11).

Referring to FIG. 2, the heliostat 11 reflects sunlight SR to the concentrator unit 2. The heliostat 11 has one or more plane mirrors. The attitude of the plane mirror (e.g., the angle around the vertical axis and the angle around the horizontal axis) is controlled so that the sunlight SR reflected from the plane mirror is directed in a predetermined direction (in this embodiment, a direction parallel to the horizontal direction). For example, the heliostat unit 1 may have a sensor (not shown) for detecting whether the sunlight SR reflected from the plane mirror is directed in the predetermined direction.

With regard to directions related to the heliostat unit 1, in this disclosure, the horizontal direction in which the heliostat 11 reflects sunlight SR is referred to as the front (right in FIG. 2), and the opposite direction is referred to as the rear (left in FIG. 2). The horizontal direction perpendicular to the front-to-back direction is referred to as the left and right.

The first body 12 supports the heliostat 11. Specifically, the first body 12 includes a support portion 13 for supporting the heliostat 11. Referring to FIG. 1, the support portion 13 includes a plate 13a and a frame 13b. The lower portion of the heliostat 11 is attached to the plate 13a. For example, the plate 13a has a rectangular shape. The frame 13b has, for example, a rectangular frame shape and surrounds the plate 13a. The plate 13a is connected to the frame 13b.

The first main body 12 is configured to be able to support other heliostat units 1. Specifically, the first main body 12 includes a loading section 14. The loading section 14 extends higher than the heliostat 11. The upper part of the loading section 14 includes a portion that overlaps with the bottom of the heliostat unit 1 (specifically, the bottom of the loading section 14) in a plan view. The upper part of the loading section 14 can contact (or engage) with the bottom of another heliostat unit 1 from below at this overlapping portion. In this embodiment, the loading section 14 has a rectangular parallelepiped outer shape. Also, in this embodiment, the loading section 14 has a multi-tiered (four-tiered) frame structure. In this embodiment, the shape of the frame of the upper part of the loading section 14 matches the shape of the frame of the lower part of the loading section 14 in a plan view. The loading section 14 includes a plate 14a in its upper part. The plate 14a improves the strength of the frame structure.

The loading section 14 is positioned at a distance from the heliostat 11 in the horizontal direction (rearward) so as not to block sunlight SR heading toward the heliostat 11. The distance between the loading section 14 and the heliostat 11 is set so that the plane mirror of the heliostat 11 does not come into contact with the loading section 14 when the attitude of the plane mirror is controlled.

The support section 13 and the load section 14 are connected to each other. For example, the support section 13 and the load section 14 may be integral, or may be connected by known fastening means such as welding or bolts. In this embodiment, the bottom of the support section 13 and the bottom of the load section 14 are flush with each other. In other embodiments, the bottom of the support section 13 may be located higher than the bottom of the load section 14, as long as the load section 14 extends above the heliostats 11. Referring to Figure 3, in this embodiment, the widths (lengths in the left-right direction) of the support section 13 and the load section 14 are the same.

Referring to Figure 1, the height of the first main body 12 (loading section 14) is, for example, approximately 2 to 3 m. The length (length in the front-to-rear direction) and width of the first main body 12 are, for example, approximately 2 to 3 m x 2 to 3 m. The size of the first main body 12 is not limited to the above and can be changed as appropriate to meet various requirements.

The first main body 12 is not limited to the above configuration and can have other configurations as long as it can support the heliostat 11 and can support other heliostat units 1 from below. For example, the loading section 14 may have an outer shape other than a rectangular parallelepiped. Furthermore, the loading section 14 does not need to have a frame structure and may have a closed outer shape. The first main body 12 can be formed from various materials, for example, metals such as steel or aluminum.

Referring to FIG. 2 , in this embodiment, the collector unit 2 has a collector 21, a second body 22, a shutter 23, and a heating furnace 24. The collector unit 2 may further include other components not shown (for example, a control device and power supply for controlling the shutter 23 and the heating furnace 24). Note that these control devices and power supplies may be shared with the heliostat unit 1.

The concentrator 21 focuses the sunlight SR reflected from the heliostat 11 onto the heating furnace 24 as a point beam. In other embodiments, the concentrator 21 may focus the sunlight SR as a line beam, depending on the application of the sunlight SR. For example, the concentrator 21 may be a Fresnel lens. Fresnel lenses are lighter and less expensive than, for example, parabolic mirrors. Therefore, the use of a Fresnel lens can reduce the weight and manufacturing costs of the concentrator unit 2. In other embodiments, the concentrator 21 may be, for example, a parabolic mirror.

When a concentrating lens (e.g., a Fresnel lens) is used as the concentrator 21, this configuration utilizing the heliostat 11 and concentrating lens has the property of being able to concentrate sunlight SR in the same way even if the distance between the heliostat 11 and the concentrating lens is changed. Therefore, in this embodiment, because the heliostat unit 1 and the concentrator unit 2 are separate, the heliostat unit 1 and the concentrator unit 2 can be brought closer to each other as long as the sunlight SR is not blocked by the concentrator unit 2. This makes it possible to reduce the installation area of the sunlight concentrating device 10.

With regard to directions related to the collector unit 2, in this disclosure, the horizontal direction in which the collector 21 receives sunlight SR is referred to as the front (left in Figure 2), and the opposite direction is referred to as the rear (right in Figure 2). The horizontal direction perpendicular to the front-to-back direction is referred to as the left and right.

The second body 22 supports the collector 21. Specifically, the second body 22 includes a support portion 25 for supporting the collector 21. In this embodiment, the support portion 25 supports the collector 21 so that the optical axis of the collector 21 is parallel to the horizontal direction. The support portion 25 includes a vertical frame 25a that supports the collector 21. The vertical frame 25a extends in the vertical direction. Referring to Figure 3, the support portion 25 includes a horizontal frame 25b that supports the collector 21. The horizontal frame 25b extends in the left-right direction.

The second body 22 is configured to be able to support another collector unit 2. Specifically, referring to FIG. 2, the second body 22 extends higher than the collector 21. The upper part of the second body 22 includes a portion that overlaps with the bottom of the collector unit 2 (specifically, the bottom of the second body 22) in a plan view. The upper part of the second body 22 can contact (or engage) with the bottom of another collector unit 2 from below at this overlapping portion. In this embodiment, the second body 22 has a generally cubic (or rectangular parallelepiped) outer shape. Also, in this embodiment, the second body 22 has a multi-stage (three-stage) frame structure. The shape of the upper frame of the second body 22 generally matches the shape of the lower frame of the second body 22 in a plan view. Referring to FIG. 1, the second body 22 includes a plate 26 on its second stage for supporting the heating furnace 24. The second body 22 also includes a plate 27 at its bottom. The plate 27 improves the strength of the frame structure.

The height of the second body 22 is equal to the height of the first body 12, for example, approximately 2 to 3 m. The length and width of the second body 22 may also be equal to the length and width of the first body 12, for example, approximately 2 to 3 m x 2 to 3 m. Alternatively, the length and width of the second body 22 may not be equal to the length and width of the first body 12.

The second body 22 is not limited to the above configuration and can have other shapes as long as it can support the concentrator 21 and can support other concentrator units 2 from below. For example, the second body 22 may have an outer shape other than a cube. Furthermore, the second body 22 does not have to have a frame structure and may have a closed outer shape. The second body 22 can be formed from various materials, for example, metals such as steel or aluminum.

The shutter 23 adjusts the amount of sunlight SR that enters the collector 21 (i.e., the heating furnace 24). Specifically, the shutter 23 is disposed in front of the collector 21 and blocks some or all of the sunlight SR reflected from the heliostat 11. For example, the shutter 23 has a structure similar to that of a blind. For example, the shutter 23 is operable between a fully open position, a fully closed position, and a half-open position between the fully open and fully closed positions. For example, the shutter 23 can be linearly adjusted to any half-open position between the fully open and fully closed positions. The shutter 23 is controlled manually or automatically so that the device that uses sunlight SR (in this embodiment, the heating furnace 24) is adjusted to the optimum temperature.

The heating furnace 24 uses the concentrated solar SR, for example, to produce hydrogen and carbon by thermal decomposition of methane (CH4 + solar heat = 2H2 + C). However, the solar SR concentrated by the apparatus 10 can be used for a variety of other applications. For example, the solar SR may be used to produce synthesis gas by steam reforming of methane (CH4 + H2 + solar heat = 3H2 + CO), or for heat storage (sensible heat storage, latent heat storage, or chemical heat storage), etc.

The heating furnace 24 is positioned behind the collector 21 so as to be located on the focal point of the collector 21. The positions of the collector 21 and the heating furnace 24 may be fixed relative to the second body 22. Alternatively, the position of at least one of the collector 21 or the heating furnace 24 may be adjustable in at least one of the vertical and horizontal directions. Such an adjustment mechanism may be provided on at least one of the vertical frame 25a and the horizontal frame 25b, or the plate 26.

Figure 4 is a schematic perspective view showing a solar concentrating system 100 including a plurality of solar concentrating devices 10 of Figure 1. Figure 5 is a schematic side view showing the solar concentrating system 100 of Figure 4.

4 and 5, the sunlight concentrating system 100 includes multiple sunlight concentrating devices 10 arranged vertically and horizontally. As described above, a heliostat unit 1 can be stacked on the first body 12 of another heliostat unit 1, and a concentrator unit 2 can be stacked on the second body 22 of another concentrator unit 2. Therefore, multiple sunlight concentrating devices 10 can be stacked vertically for use. The sunlight concentrating devices 10 can also be arranged horizontally (left and right). For example, in FIGS. 4 and 5, eight sunlight concentrating devices 10 are arranged in two rows and four columns. Because multiple sunlight concentrating devices 10 are arranged in two rows, the sunlight concentrating system 100 of this embodiment can double the amount of concentrated sunlight SR compared to a system in which the number of heliostats is increased only horizontally. The number of rows and columns is not limited to the above and can be adjusted as needed depending on the amount of sunlight SR required.

Figure 6 is a schematic side view showing another solar concentrating system 200 including the solar concentrating device 10 of Figure 1.

In the sunlight concentrating system 200, the heliostat unit 1 and the concentrator unit 2 of the sunlight concentrating device 10 are each loaded onto a separate mobile body (e.g., a vehicle such as a truck) 50. As described above, in the sunlight concentrating device 10, the heliostat unit 1 and the concentrator unit 2 are separate entities, and therefore can be loaded onto separate mobile bodies 50. For example, if the heliostat unit 1 and the concentrator unit 2 each have a height of approximately 2-3 m and a length and width of approximately 2-3 m x 2-3 m, they can be loaded separately onto a typical medium-sized truck (e.g., a truck with a maximum load capacity of approximately 5 tons). This improves the mobility of the sunlight concentrating device 10. Furthermore, as shown in FIG. 6, the sunlight concentrating device 10 can be used on the vehicle 50 by arranging the heliostat unit 1 and the concentrator unit 2 facing each other on the vehicle 50. This allows the sunlight concentrating device 10 to be moved to a desired location and used quickly there. Furthermore, after using the sunlight collecting device 10, it can be quickly returned to its original location. Furthermore, in this embodiment, the distance between the heliostat unit 1 and the collector unit 2 can be easily adjusted by moving the vehicle 50. Furthermore, in this embodiment, by having two vehicles 50 run side by side with the heliostat unit 1 and the collector unit 2 facing each other, the sunlight collecting device 10 can be used while the vehicles 50 are running.

The solar light collecting device 10 according to the first embodiment described above comprises a heliostat unit 1 having a heliostat 11 and a first body 12 supporting the heliostat 11, where the first body 12 extends above the heliostat 11 and includes a portion where the upper part of the first body 12 contacts the bottom of another heliostat unit 1 from below, and a collector unit 2 having a collector 21 and a second body 22 supporting the collector 21, where the second body 22 extends above the collector 21 and includes a portion where the upper part of the second body 22 contacts the bottom of another collector unit 2 from below. Therefore, the upper part of the first body 12 can support another heliostat unit 1. Furthermore, the upper part of the second body 22 can support another collector unit 2. In this way, since the heliostat unit 1 can be stacked on top of the first body 12 of another heliostat unit 1 and the concentrator unit 2 can be stacked on top of the second body 22 of another concentrator unit 2, as shown in FIGS. 4 and 5 , the sunlight concentrating device 10 can be used while being stacked vertically. Therefore, a large area of flat land is not required. Furthermore, by changing the number of sunlight concentrating devices 10 according to the required scale of the sunlight concentrating system 100, 200, the amount of sunlight to be concentrated (the scale of the system) can be adjusted without the need for redesigning the device. Furthermore, since the sunlight concentrating device 10 is modularized as the heliostat unit 1 and the concentrator unit 2, the production cost per device can be reduced by mass-producing the heliostat unit 1 and the concentrator unit 2. Furthermore, in the event of a malfunction, only the malfunctioning heliostat unit 1 or concentrator unit 2 can be stopped and replaced, eliminating the need to suspend operation of the entire sunlight concentrating system 100, 200 for an extended period of time due to a malfunction of a single heliostat unit 1 or concentrator unit 2.

Furthermore, in the sunlight collecting device 10, the first main body 12 and the second main body 22 are separate bodies. Therefore, the distance between the heliostat unit 1 and the collector unit 2 can be adjusted depending on the characteristics of the ground G on which the sunlight collecting device 10 is installed.

Furthermore, in the solar collecting device 10, the height of the second main body 22 is equal to the height of the first main body 12. Therefore, when the heliostat unit 1 and the collector unit 2 are placed on a flat surface, the heliostat unit 1 and the collector unit 2 can be loaded without adjusting the height of the heliostat unit 1 and the collector unit 2.

[Second embodiment]
7 is a schematic side view showing a sunlight collecting system 300 including a plurality of sunlight collecting devices 20 according to the second embodiment. The second embodiment differs from the sunlight collecting device 10 of the first embodiment in that the sunlight collecting device 20 further includes a loading unit 3 and auxiliary mechanisms 4, 12a, 12b, 12c, 22a, 22b, and 22c. Other aspects of the sunlight collecting device 20 are similar to those of the sunlight collecting device 10, and therefore description thereof will be omitted.

The loading unit 3 is separate from the heliostat unit 1 and the concentrator unit 2. The loading unit 3 has a configuration similar to the loading section 14 of the heliostat unit 1 described above. Therefore, a detailed description thereof will be omitted.

In the sunlight collecting system 300, two loading units 3 are arranged behind the first-tier heliostat unit 1. The second-tier heliostat unit 1 is arranged straddling the first-tier heliostat unit 1 and the loading unit 3. One loading unit 3 is arranged behind the second-tier heliostat unit 1. The third-tier heliostat unit 1 is arranged straddling the second-tier heliostat unit 1 and the loading unit 3. With this configuration, multiple heliostat units 1 are arranged in a staircase pattern. With this configuration, the upper-tier heliostat unit 1 is supported by both the lower-tier heliostat unit 1 and the loading unit 3. This increases the stability of the heliostat unit 1 loading. Furthermore, with the above configuration, space is secured above the lower-tier heliostat 11. Therefore, the upper heliostat unit 1 can be prevented from blocking sunlight SR heading toward the lower heliostat 11.

Similarly, two loading units 3 are arranged behind the first tier of collector units 2. The second tier of collector units 2 is arranged straddling the first tier of collector units 2 and the loading unit 3. One loading unit 3 is arranged behind the second tier of collector units 2. The third tier of collector units 2 is arranged straddling the second tier of collector units 2 and the loading unit 3. With this configuration, multiple collector units 2 are arranged in a staircase pattern. With this configuration, the collector unit 2 on the upper tier is supported by both the collector unit 2 on the lower tier and the loading unit 3. This increases the stability of the collector unit 2 loading. Note that the number of heliostat units 1, collector units 2, and loading units 3, as well as the arrangement of the number of tiers, are not limited to the above and can be adjusted as appropriate depending on the amount of sunlight SR required.

The auxiliary mechanism includes a pillar 4 that supports the loaded heliostat unit 1 and collector unit 2. The pillar 4 is a long member that extends vertically to connect the lower loading unit 3 and the loading portion 14 of the upper heliostat unit 1. Similarly, the pillar 4 extends vertically to connect the lower loading unit 3 and the second body 22 of the upper collector unit 2. The pillar 4 prevents the heliostat unit 1 and the collector unit 2 from moving. For example, the pillar 4 is connected to the heliostat unit 1, the collector unit 2, and the loading unit 3 by known fixing means such as bolts. The pillar 4 can be formed from various materials, for example, metals such as steel or aluminum.

The auxiliary mechanism also includes a recess (first recess) 12a provided on the bottom of the first main body 12 of the heliostat unit 1, and a protrusion (first protrusion) 12b provided on the upper part of the first main body 12. The lower protrusion 12b is inserted into the upper recess 12a. In this embodiment, the protrusion 12b is prepared as a block that can be removed from the first main body 12. A recess 12c for receiving the protrusion 12b is formed on the upper part of the first main body 12. In other embodiments, the protrusion 12b may be formed integrally with the first main body 12. For example, the protrusion 12b extends in the left-right direction. The recess 12a is formed in the frame structure of the first main body 12 to receive the protrusion 12b. A plurality of recesses 12a are provided on the bottom of the first main body 12 along the front-rear direction. The engagement between the protrusions 12b and the recesses 12a prevents the heliostat unit 1 from moving in the front-rear direction.

Similarly, the auxiliary mechanism includes a recess (second recess) 22a provided on the bottom of the second body 22 of the concentrator unit 2 and a protrusion (second protrusion) 22b provided on the upper part of the second body 22. The lower protrusion 22b is inserted into the upper recess 22a. In this embodiment, the protrusion 22b is prepared as a block that can be removed from the second body 22. A recess 22c is formed on the upper part of the second body 22 to receive the protrusion 22b. For example, the protrusion 22b may be the same as the block used as the protrusion 12b in the heliostat unit 1. The block can be formed from various materials, such as metals such as steel or aluminum. In other embodiments, the protrusion 22b may be formed integrally with the second body 22. For example, the protrusion 22b extends in the left-right direction. The recess 22a is formed in the frame structure of the second body 22 to receive the protrusion 22b. Multiple recesses 22a are provided on the bottom of the second main body 22 along the front-to-rear direction. The engagement between the protrusions 22b and the recesses 22a prevents the collector unit 2 from moving in the front-to-rear direction.

The sunlight collecting device 20 according to the second embodiment as described above has the same effects as the sunlight collecting device 10 described above.

Furthermore, in the solar light collecting device 20, the bottom of the first main body 12 includes a recess 12a, and the top of the first main body 12 includes a protrusion 12b that engages with the recess 12a of another heliostat unit 1. Therefore, the loaded heliostat unit 1 can be prevented from moving.

Furthermore, in the solar concentrating device 20, the protrusion 12b is formed as a block that is removable from the first body 12. Therefore, the protrusion 12b can also be used with other heliostat units 1.

Furthermore, in the solar concentrating device 20, the bottom of the second main body 22 includes a recess 22a, and the top of the second main body 22 includes a protrusion 22b that engages with the recess 22a of another concentrator unit 2. Therefore, it is possible to prevent the stacked concentrator units 2 from moving.

Furthermore, in the solar concentrating device 20, the protrusion 22b is detachable from the second body 22. Therefore, the protrusion 22b can also be used in other concentrator units 2. Furthermore, in the solar concentrating device 20, the protrusion 22b is the same block as the protrusion 12b used in the heliostat unit 1. Therefore, this block can be used in both the heliostat unit 1 and the concentrator unit 2.

Although the embodiments have been described above with reference to the accompanying drawings, the present disclosure is not limited to the above-described embodiments. It will be clear to those skilled in the art that various modifications and alterations may be made within the scope of the claims, and it is understood that these also fall within the technical scope of the present disclosure.

For example, in the above embodiment, the heliostat unit 1 and the collector unit 2 are separate bodies. However, in other embodiments, the heliostat unit 1 and the collector unit 2 may be connected to each other by a member such as a frame. In this case, there is no need to adjust the relative positions between the heliostat unit 1 and the collector unit 2 during installation. In this case, it is preferable that the connecting member be thin so as not to block sunlight SR heading toward the lower heliostat 11.

In the solar concentrating system 300 of FIG. 7, a loading unit 3 is used to load the heliostat unit 1 and the concentrator unit 2. However, in other embodiments, concrete or soil may be used instead of or in addition to the loading unit 3.

The auxiliary mechanisms 4, 12a, 12b, 12c, 22a, 22b, and 22c shown in FIG. 7 may also be applied to the solar concentrating system 100 shown in FIGS. 4 and 5.

This disclosure can contribute, for example, to Sustainable Development Goals (SDGs): Goal 7 "Ensure access to affordable, reliable, sustainable and modern energy," Goal 9 "Build resilient infrastructure, promote sustainable industrialization and foster innovation," and Goal 12 "Ensure sustainable consumption and production patterns."

REFERENCE SIGNS LIST 1 Heliostat unit 2 Concentrator unit 10, 20 Solar light concentrating device 11 Heliostat 12 First body 12a First recess 12b First protrusion 21 Concentrator 22 Second body 22a Second recess 22b Second protrusion

Claims (8)

a heliostat unit having a heliostat and a first body supporting the heliostat, wherein the first body extends above the heliostat, and an upper portion of the first body includes a portion that contacts a bottom portion of another heliostat unit from below;
A collector unit including a collector that collects light reflected from the heliostat and a second body that supports the collector, wherein the second body extends above the collector, and an upper portion of the second body includes a portion that contacts a bottom portion of another collector unit from below;
Equipped with
the first body includes a loading portion extending above the heliostat,
the loading section includes a frame structure and a plate disposed on an upper portion of the frame structure;
The loading unit is disposed so as to be spaced rearward from the heliostat in a direction opposite to a direction in which the heliostat reflects light.
Solar concentrator. The solar concentrating device of claim 1, wherein the first body and the second body are separate bodies. The solar concentrating device of claim 1, wherein the first body and the second body are connected to each other. The solar concentrating device described in any one of claims 1 to 3, wherein the height of the second body is equal to the height of the first body. 5. The solar concentrating device according to claim 1, wherein a bottom of the first body includes a first recess, and an upper part of the first body includes a first protrusion that engages with the first recess of another of the heliostat units. The solar concentrating device of claim 5, wherein the first protrusion is detachable from the first body. 7. The solar concentrating device according to claim 1, wherein a bottom of the second body includes a second recess, and an upper part of the second body includes a second protrusion that engages with the second recess of another of the concentrator units. The solar concentrating device of claim 7, wherein the second protrusion is detachable from the second body.