Sunlight energy gathering system and light guide pipe thereof
By designing a solar energy concentration system, the combination of reflective plate, reflective cylinder and light guide tube is used to achieve effective gathering and transmission of sunlight, solving the problem of difficult sunlight dispersion and improving the efficiency of solar energy utilization.
Patent Information
- Application Number
- CN202422203339.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-09-09
- Publication Date
- 2025-06-17
- Estimated Expiration
- 2034-09-09
AI Technical Summary
In the prior art, the sunlight is relatively dispersed and difficult to effectively utilize, resulting in the development and utilization of solar energy far from enough.
A solar energy concentration system is designed, including a column support frame, a reflector plate device, a reflector cylinder and a light guide tube. The reflector plate device tracks sunlight and reflects it to the incoming light inlet of the reflector cylinder, which collects light through a reduced area design and transmits the gathered light to the desired location through the light guide tube. The light guide tube adopts a variable diameter structure with a large rear and a small front. The beam diameter is reduced through the curved sandwich structure to achieve centralized transmission of light energy.
It realizes effective gathering and transmission of sunlight, solves the problem of difficult sunlight dispersion and is difficult to utilize, improves the utilization efficiency of solar energy, and can be applied in multiple places.
Smart Images
Figure CN222993213U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a solar energy concentrating system and a light guide pipe thereof, which are used for concentrating solar light and belong to the technical field of solar energy utilization. Background Art
[0002] Solar energy refers to the thermal radiation energy of the sun, and its main manifestation is the commonly said sunlight. It is a renewable energy source, inexhaustible, environmentally friendly and pollution-free, and is an ideal energy source. In the prior art, solar energy is generally used for power generation or providing energy for water heaters. However, sunlight itself is relatively scattered, and the utilization difficulty is relatively high, resulting in far from sufficient development and utilization of solar energy at present. Therefore, there is an urgent need for a device that can concentrate sunlight. Content of the Utility Model
[0003] The purpose of the utility model is to provide a solar energy concentrating system to solve the problem that the relatively scattered sunlight in the prior art is not convenient to utilize.
[0004] To solve the above problems, the solar energy concentrating system involved in the utility model adopts the following technical solutions: a solar energy concentrating system includes a column support frame. A reflector device with a solar light tracking function is arranged at the bottom of the column support frame. A reflecting cylinder is fixedly arranged on the upper part of the column support frame. The reflecting cylinder has a downward incident light inlet and an upward reflected light outlet. The area of the incident light inlet is larger than that of the reflected light outlet. A light guide pipe is connected to the reflected light outlet. The sunlight reflected by the reflector device enters the incident light inlet, and the light coming out of the reflected light outlet enters the light guide pipe, and the light refracts forward in the light guide pipe.
[0005] The light guide pipe is a reducing pipe with a larger rear part and a smaller front part, and the reducing part of the light guide pipe has a reducing structure that reduces the beam diameter after passing through.
[0006] The reducing structure is a curved surface sandwich structure with a curvature radius increasing from the rear to the front. The curved surface sandwich structure is sleeved outside the light guide pipe, and both ends of the curved surface sandwich structure are communicated with the light guide pipe.
[0007] The reflector of the reflector device is square, and the reflector includes a central circle in the middle and concave mirrors at the four corners.
[0008] The central circle includes a central circle at the center and a ring outside the central circle. The ring is spliced by block-shaped plane mirrors. Two sides of the block-shaped plane mirror are arc-shaped and the other two sides are straight lines.
[0009] A transparent protective layer is arranged on the upper surface of the reflector.
[0010] An elevator is arranged on the column support frame.
[0011] The light guide tube of the solar energy concentrating system involved in the present utility model adopts the following technical solution: A light guide tube of a solar energy concentrating system includes a tube body in which light rays can be refracted and transmitted. The tube body is a reducing tube with a larger rear end and a smaller front end. The reducing part of the light guide tube has a reducing structure that reduces the beam diameter after passing through. The reducing structure is a curved surface sandwich structure with a curvature radius increasing from the rear to the front. The curved surface sandwich structure is sleeved outside the light guide tube, and both ends of the curved surface sandwich structure are communicated with the light guide tube.
[0012] The reflector device of the solar energy concentrating system of the present utility model can track sunlight and reflect the tracked sunlight to the incident light inlet of the reflection cylinder. Since the area of the incident light inlet of the reflection cylinder is larger than the area of the reflected light outlet, the reflection cylinder can concentrate the incident light and emit it from the reflected light outlet to the light guide tube, realizing the energy concentration of sunlight. Then, the concentrated light continues to propagate forward through the light guide tube, and the light energy can be transferred for lighting, etc., and the multi-site application of sunlight can be realized.
[0013] The tube body of the light guide tube of the present utility model is larger at the front and smaller at the rear, and the reducing part of the light guide tube has a reducing structure, which is a curved surface sandwich structure with a curvature radius increasing from the rear to the front. The curved surface sandwich structure is sleeved outside the light guide tube, and both ends of the curved surface sandwich structure are communicated with the light guide tube. Since the rear end of the light guide tube becomes thinner, the light can be concentrated by the light guide tube during the propagation process in the light guide tube, realizing the energy concentration of sunlight. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following will briefly introduce the drawings required for use in the embodiments:
[0015] Figure 1 It is a schematic structural diagram of an embodiment of the solar energy concentrating system of the present utility model;
[0016] Figure 2 It is Figure 1 a 1 / 4 structural schematic diagram of a single reflector in
[0017] Figure 3 It is Figure 1 a structural schematic diagram of the light guide tube of the solar energy concentrating system in
[0018] Reference numerals in the figures: 1, column support frame; 2, reflector device; 3, reflection cylinder; 4, light guide tube; 5, curved surface sandwich structure; 6, reflector; 7, concave mirror; 8, block-shaped plane mirror; 9, lift elevator. DETAILED DESCRIPTION OF THE EMBODIMENTS
[0019] In order to make the technical purpose, technical solution and beneficial effects of the utility model clearer, the technical solution of the utility model is further described below in conjunction with the drawings and specific embodiments. It should be understood that the specific embodiments described herein are only used to explain the utility model and are not used to limit the utility model, that is, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. The components of the embodiments of the utility model described and shown in the drawings can be arranged and designed in various different configurations.
[0020] The specific embodiment of the solar energy collection system involved in the utility model is Figures 1-2 In the invention, there is a column support frame 1 as a foundation, the column support frame 1 is arranged on the ground foundation, a reflector device 2 with a sunlight tracking function is arranged at the bottom of the column support frame 1, a reflector tube 3 is fixedly arranged on the upper part of the column support frame 1, the reflector tube 3 has an incident light inlet facing downward and a reflected light outlet facing upward, the area of the incident light inlet is larger than the area of the reflected light outlet, the reflected light outlet is connected to a light guide 4, the sunlight reflected by the reflector device 2 enters the incident light inlet, the light exiting the reflected light outlet enters the light guide 4, and the light is refracted forward in the light guide 4. The reflector device 2 is arranged correspondingly to the reflector tube 3, and the reflector device 2 is used to reflect the tracked sunlight to the incident light inlet of the reflector tube 3. Since the area of the incident light inlet of the reflector tube 3 is larger than the area of the reflected light outlet, the reflector tube 3 can gather the incident light incident therein and reflect it out; the light guide 4 connected to the reflector tube 3 provides a path for the light reflected by the reflector tube 3, so that the gathered light can propagate therein.
[0021] Specifically, the light guide tube 4 is a diameter reducing tube that is larger at the back and smaller at the front, and the diameter reducing portion of the light guide tube 4 has a diameter reducing structure that reduces the diameter of the light beam after passing through. In other words, the light guide tube 4 has a thick end and a thin end, and a diameter reducing portion is provided at a position connecting the thick end and the thin end on the light guide tube 4, and a diameter reducing structure is provided at the diameter reducing portion, and the diameter reducing structure can converge the light beam with a larger diameter passing through the thick end of the light guide tube 4 into a light beam with a smaller diameter, and make the converged light beam with a smaller diameter continue to propagate along its thin end.
[0022] Specifically, the variable diameter structure is a curved surface sandwich structure 5 whose radius of curvature changes from small to large from back to front. The curved surface sandwich structure 5 has a double-layer curved surface, and there is a space between the two curved surfaces of the double-layer curved surface for light to reflect and pass through. The radius of curvature of the two curved surfaces of the double-layer curved surface changes from small to large from back to front. The curved surface sandwich structure is sleeved on the outside of the light guide 4, and both ends of the curved surface sandwich structure 5 are connected to the light guide 4. Since the radius of curvature of the variable diameter structure changes from small to large from back to front, after the light enters the variable diameter structure from one end, its refraction angle will change from small to large with the curvature of the inner wall of the variable diameter structure, and finally be emitted from the other end of the variable diameter structure at a larger angle.
[0023] Specifically, the reflector 6 of the reflector device 2 is square, and the reflector 6 includes a circle in the middle and concave mirrors 7 at the four corners. The reflector device 2 is composed of a series of reflectors 6, and each reflector 6 is composed of a circle in the middle and concave mirrors 7 at the four corners.
[0024] Specifically, the circle includes a central circle at the center and an annular ring outside the central circle. The annular ring is spliced by block-shaped plane mirrors 8. Two sides of the block-shaped plane mirror 8 are arc-shaped and the other two sides are straight lines.
[0025] Specifically, a transparent protective layer (not shown in the figure) is provided on the upper surface of the reflector 6. On the one hand, the transparent protective layer can allow light to pass through, and on the other hand, it can protect the reflector and prevent the reflector from being damaged.
[0026] Specifically, a lift 9 is provided on the column support frame 1. The lift 9 can lift and stay between the ground and the top of the column support frame 1, which is convenient for transporting equipment to the column support frame 1 and for transporting workers to the column support frame 1 for debugging or maintenance.
[0027] A single reflector 6 is composed of a series of block-shaped plane mirrors 8 and concave mirrors 7 at the four corners. The center of the reflector 6 is the center of the circle, and the circle where the center of the circle is located is the central circle.
[0028] Batch production process of the block-shaped plane mirror 8: First step, make a standard pattern of the first concentric annular ring outside the central circle. Second step, turn the standard pattern 180 degrees and translate it to get a second pattern, and the second pattern is aligned with the first pattern at the upper and lower ends. Third step, continue to reverse and translate and align. After multiple operations, a wavy straight bar is obtained. Fourth step, arrange multiple wavy straight bars on a larger rectangular plane mirror, and use a set of glass knives with equal-width to cut the upper edges of each straight bar along the upper edge of the wavy straight bar. Fifth step, turn the larger rectangular plane mirror 180 degrees, and similarly cut the lower edges of each straight bar. Sixth step, break each straight bar. Seventh step, remove the excess part. Eighth step, stagger and translate each straight bar so that one side edge of each small block is aligned to form multiple groups of straight lines. Ninth step, cut one straight side of each small block plane mirror along the straight line. Tenth step, stagger and translate each straight bar so that the other side edge of each small block is aligned to form multiple groups of straight lines. Eleventh step, cut the other straight side of each small block plane mirror along the multiple groups of straight lines. At this point, the upper and lower sides of each block-shaped plane mirror are arc-shaped and the left and right sides are straight lines. Twelfth step, break each small block and set it aside, that is, each block-shaped plane mirror is obtained. The production process of the block-shaped plane mirrors in each annular ring outside the central circle is the same. The only difference is that the undulation of the wavy lines on the upper and lower edges of the straight bars of the concentric annular rings closer to the center of the circle changes more greatly.
[0029] Specific embodiments of the light guide tube of the solar energy concentrating system involved in the present utility model are as follows. In Figure 3 it has a tube body in which light can be refracted and transmitted. The tube body is a reducing tube with a larger rear end and a smaller front end. The reducing part of the light guide tube 4 has a reducing structure that reduces the beam diameter after passing through. The reducing structure is a curved sandwich structure 5 with a curvature radius increasing from the rear to the front. The reducing structure is a curved sandwich structure 5 with a curvature radius increasing from the rear to the front. The curved sandwich structure 5 has a double-layer curved surface. There is a space for light to be reflected and pass through between the two curved surfaces of the double-layer curved surface. The curvature radii of the two curved surfaces of the double-layer curved surface increase from the rear to the front. The curved sandwich structure is sleeved on the outside of the light guide tube 4, and both ends of the curved sandwich structure 5 are connected to the light guide tube 4. That is to say, the light guide tube 4 has a thick end and a thin end. A reducing part is provided at the position where the thick end and the thin end of the light guide tube 4 are connected. A reducing structure is provided at the reducing part. The reducing structure can converge the beam with a larger diameter passing through the thick end of the light guide tube 4 into a beam with a smaller diameter, and make the converged beam with a smaller diameter continue to propagate along its thin end. The reducing structure is the curved sandwich structure 5. The curved sandwich structure 5 is sleeved on the outside of the light guide tube, and its curvature radius gradually increases from the rear to the front. The rear end of the curved sandwich structure 5 is provided at the junction of the thick end and the thin end of the light guide tube 4, and the other opposite end is provided on the thin end of the light guide tube 4. The beam with a thicker radius passing through the thick end of the light guide tube 4 is converged by the two curved sandwich structures 5 and becomes a beam with a thinner radius, and continues to propagate forward through the thin end of the light guide tube 4.
[0030] In this embodiment, multiple groups can be used. Other light guide tubes in multiple groups can be connected to one light guide tube to form an enhanced beam and increase the energy of the beam. Or each group of light guide tubes can be connected to an additional light guide tube to form an enhanced beam.
[0031] The light guide tube in the above embodiment is a reducing tube with a larger rear end and a smaller front end. This is an optimized technical solution. In other embodiments, the diameters of each part of the light guide tube can also be the same.
[0032] The reflector in the above embodiment is square. This is an optimized technical solution. In other embodiments, the reflector can also be of other shapes, such as a regular polygon. The middle part of the regular polygon reflector is circular, and each corner part is a concave mirror.
[0033] The circle in the above embodiment includes a central circle in the center and an annular ring outside the central circle. In other embodiments, the circle can also only include the central circle located in the center, and the central circle is a concave mirror.
[0034] A transparent protective layer is provided on the upper surface of the reflector in the above embodiment. This is an optimized technical solution. In other embodiments, it can also be not provided.
[0035] The column support frame in the above embodiments is provided with a lift elevator, which is an optimized technical solution and may not be provided in other embodiments. During maintenance, the column support frame can be climbed through the climbing structure worn on the hands and feet.
[0036] The high-energy density light beam manufactured by this device can also be directly used for objects in a transparent medium, or further developed for other indirect uses.
[0037] The sunlight tracking function is an existing technology. Generally, a servo system is used to track the sun. The main focus, the secondary focus, and the center of a single reflector are on the same straight line. For the tracking principle in the east-west direction, when the sun deflects and moves to a certain position, when the secondary foci reflected by the concave mirrors at the four corners shift to the secondary focus controller, the automatic tracking circuit composed of a power supply, a motor, and gears is activated, causing the single reflector to deflect and driving the main focus to deflect to the correct position, that is, the main focus, the secondary focus, and the center of the single reflector are on the same straight line. At this time, the controller shuts down and the single reflector stops rotating. The principle in the north-south direction is the same as that in the east-west direction. The difference is that the deflection angle in the north-south direction is smaller, deflecting 45 degrees in a day, and it starts to deflect at sunrise, reaches the apex at noon, and starts to deflect in the opposite direction in the afternoon until sunset. In the east-west direction, it is a one-way movement, deflecting 90 degrees in a day, and when sunset comes, the automatic return device is activated to return to the position at sunrise in the morning to prepare for the next day. The sunrise and sunset times change gradually throughout the year, and this change is regular. A gear set can be added to automatically adapt to and adjust this change. There are two control methods for the offset controller at the secondary focus: The first is photoelectric control. It converts the different light intensities at the secondary focus into electrical signals, and through the transmission of current, motor, and gears, the reflector is deflected to the correct position, that is, the main focus, the secondary focus, and the center point of the reflector are on the same straight line.
[0038] Another control method is photothermal control. Specifically, a sealed container is placed at the secondary focus, and water or other liquids with a low boiling point are placed inside. The principle is that the temperature at the secondary focus is relatively high, which can cause the liquid in the sealed container to boil and generate steam. A thinner sealed pipe is used to conduct the steam to the gear rotation system, and the pressure of the steam is used to push the gear rotation device to deflect the reflector to the correct position. That is, the main focus, the secondary focus, and the center point of the reflector are on the same straight line.
[0039] Differences between the two control methods: Generally, the optoelectronic control method can be used. However, in special cases, such as when there is no power or electricity cannot be used, the photothermal control method has great advantages. Both of these control methods should be set to operate automatically. The second photothermal control method is suitable for special cases and can be used as a backup control method to apply to the emergency operation under special conditions.
[0040] Since the above tracking method is a prior art, its specific structure will not be described in detail here.
[0041] Finally, it should be noted that: the above embodiments are only used to illustrate rather than limit the technical solutions of the present invention. Any equivalent replacement of the present invention and modifications or partial replacements that do not depart from the spirit and scope of the present invention should be covered within the scope of the claims of the present invention.
Claims
1. A solar energy concentration system, characterized in that: It includes a column support frame, a reflector device with a sunlight tracking function is provided at the bottom of the column support frame, a reflector tube is fixedly provided on the upper part of the column support frame, the reflector tube has a downward incident light inlet and an upward reflected light outlet, the area of the incident light inlet is larger than the area of the reflected light outlet, the reflected light outlet is connected to a light guide tube, the sunlight reflected by the reflector plate device enters the incident light inlet, the light coming out of the reflected light outlet enters the light guide tube, and the light is refracted forward in the light guide tube.
2. The solar energy concentration system according to claim 1, characterized in that: The light guide tube is a diameter-reducing tube that is larger at the rear and smaller at the front. The diameter-reducing portion of the light guide tube has a diameter-reducing structure that reduces the diameter of the light beam after passing through.
3. The solar energy concentration system according to claim 2, characterized in that: The variable diameter structure is a curved sandwich structure whose curvature radius increases from small to large from back to front. The curved sandwich structure is sleeved outside the light guide tube, and both ends of the curved sandwich structure are connected to the light guide tube.
4. The solar energy concentration system according to claim 3, characterized in that: The reflecting plate of the reflecting plate device is square, and comprises a circular middle portion and concave mirrors at four corners.
5. The solar energy concentration system according to claim 4, characterized in that: The circle comprises a central circle in the center and a circular ring outside the central circle. The circular ring is formed by splicing block plane mirrors. Two sides of the block plane mirrors are arc-shaped and the other two sides are straight lines.
6. The solar energy concentration system according to claim 5, characterized in that: The upper surface of the reflecting plate is provided with a transparent protective layer.
7. The solar energy concentration system according to claim 6, characterized in that: A lifting elevator is arranged on the column support frame.
8. A light pipe for a solar energy concentration system, characterized in that: The invention comprises a tube body in which light can be refracted and transmitted, the tube body is a reducing tube with a larger rear portion and a smaller front portion, the reducing portion of the light guide tube has a reducing structure which reduces the diameter of the light beam after passing through, the reducing structure is a curved sandwich structure whose curvature radius increases from small to large from the rear to the front, the curved sandwich structure is sleeved on the outside of the light guide tube, and the two ends of the curved sandwich structure are connected to the light guide tube.