High-concentration sunlight transmission and utilization method and equipment

Abstract

The invention discloses a high-concentration sunlight transmission and utilization method and equipment, and relates to a set of low-cost high-concentration, high-collection, high-efficiency utilization system, which is used for transmitting high-concentration strong light to an energy utilization site, directly carrying out light / heat efficient conversion, heating a water medium and the like, particularly listing a typical important application scene and opening up a new sky for efficiently utilizing sunlight. And the history that light and heat cannot be used in winter in north is ended.

Description

Technical Field

[0001] This patent belongs to the field of low-carbon new energy driven by the Clean Development Mechanism, and studies the efficient use of solar energy, which is particularly applicable to all aspects of production and life. Background Technology

[0002] Nowadays, solar energy utilization projects are everywhere, ranging from small-scale household solar vacuum tube hot water systems to large-scale industrial applications such as photovoltaic power generation and solar thermal power generation projects. They all absorb solar energy on-site and convert it into electrical energy, heat energy, and electricity, making them convenient for collection, storage, and transmission.

[0003] Currently, solar / thermal conversion water heating systems achieve a solar energy utilization rate of 80-90%, while photovoltaic and solar thermal power generation systems, which involve large-scale investments, have a lower solar energy utilization efficiency of approximately 15% to 30%. Many power generation projects directly use electricity to heat various types of water, which is purely an electro-thermal conversion. For example, in lithium extraction projects from salt lakes, the massive amounts of brine are heated, but due to insufficient sunlight, they can only passively receive heating from inefficiently produced photovoltaic and solar thermal power generation. It is evident that "the waste is quite serious."

[0004] High-altitude snow-capped mountains, deserts, rocky cliffs, and riverbeds are often devoid of sunlight, so innovation is essential. This patented design presents a complete low-cost, high-efficiency solution that concentrates sunlight and transmits it to the brine heating field for lithium extraction in salt lakes (similar to other locations), directly and efficiently converting light into heat, thus achieving efficient utilization of light energy. Summary of the Invention

[0005] The convergence of sunlight into strong light is what physics calls focusing. When a standard convex or concave lens is used to focus the light at a focal point F, it is called point focusing, or simply focusing the light. The methods for collecting the focused strong light are similar and will not be drawn one by one. In production, most methods select a suitable segment of the focusing curve from mathematical geometry (the same applies below, only a suitable segment), such as rotating a parabola to obtain a parabolic surface to achieve point focusing, which is very common; this article uses a parabolic sphere of rotation to collect solar intensity maps, such as... Figure 1 There are two methods for collecting the fees:

[0006] Method 1: Use a concave lens in front of the focal point and a convex lens behind the focal point (hereinafter collectively referred to as lenses before and after the focal point) to break the convergence and restore the light to parallelism (hereinafter referred to as breaking the convergence and restoring parallelism). Then use a plane mirror to reflect and adjust the direction of the light, directing it into the light-receiving aperture. The light-receiving aperture is installed at an easily received position on the system's rotation axis, i.e., near the yoz plane. Figure 1 ; The reflector is locked when the strong light is projected onto the light-receiving port; all facilities, including the primary mirror, the defocusing and leveling lens, the reflector, and the light-receiving port, are fixed on the system frame. The system frame has a rotating axis Z that turns east and west to face the sun for lighting; it can also be rotated with the focal point F as the rotating axis to face the sun for lighting.

[0007] Method 2: Use an ellipsoidal surface to refocus the strong light from focal point F1 to F2 (F2 can be above, below, or at the position of the primary reflector), use a lens to defocus and level the light, and then use a plane mirror to reflect and direct the light into the receiving aperture. Figure 2 Ellipsoidal mirrors come in two types: orthogonal and offset. Orthogonal ellipsoidal mirrors have the center lines of the ellipsoid's foci F1F2 and the primary mirror's center line lying on the same y-axis (F2 is actually at F21). To maximize light collection, the primary mirror must continuously rotate orthogonally towards the sun, and light paths must be opened at corresponding positions on the primary mirror surface (or even made completely transparent, turning the primary mirror into a southern and northern hemisphere). For example, in direction A... Figure 5 When F2 is in the primary mirror position, the primary mirror opening aperture is the smallest, and the optical path gap also serves as a cleaning function. An ellipsoidal mirror is offset (without an optical path gap on the mirror surface) – meaning the center lines of the ellipsoid's foci F1F2 make an angle with the y-axis of the primary mirror's center line. F2 essentially falls on the yoz plane (after rotating 90 degrees, it's at F22; the same applies on both sides, determined by the site layout). It also needs to facilitate subsequent defocusing, leveling, reflection adjustment, and image recovery, such as in direction A. Figure 5 .

[0008] When a mirror is orthogonally aligned with the sun, it receives the strongest light energy and can continuously follow the sun. It can be approximated at low cost, and its position can be easily changed every 10-15 minutes (the same applies below, only approximation of the sun is mentioned).

[0009] 1) It is particularly emphasized that, in order to clean the mirror surface and prevent rain, the entire optical path system, including the lens, is deliberately offset from the center line by 3 / 8 degrees, with the center position reserved for drainage. 2) Each focusing, defocusing and leveling, and reflector reorientation can collect strong light. The use of light can be simplified according to the actual situation, as long as it is convenient and low-cost; there is no need to be bound by the entire process in the article (the same applies below, and will not be explained in detail); the focusing, defocusing and leveling, and reflector reorientation in the article are to put the strong light into the main light receiving port (referring to the light receiving port that can receive light from multiple sources) to save on optical path facilities.

[0010] Convex or concave lens pillars can converge sunlight into a focused line. In production, parabolic cylindrical mirrors (referred to as grooved mirrors) are often used to achieve line focusing, and the collection method is the same. This article only uses grooved mirror line focusing as an example for illustration: After line focusing, a band of strong light is formed at the focal line. There are two methods for collecting the light:

[0011] Line focusing method one: Place an elliptical cylindrical lens offset outside the focal line F, ensuring the focal lines F1 and F are highly aligned. Focus the strong light onto focal point F2. Figure 3 The light is then focused and flattened into a parallel intensity band using a lens cylinder, reflected and oriented using a plane mirror, and then longitudinally focused at F5 using a short parabolic cylindrical mirror before entering the light-receiving aperture (or further focused and flattened, reflected, and then entered into the light-receiving aperture). Figure 6 ;

[0012] Method 2 for focusing along the focal line: Use a lens cylinder to defocus and bring the focal line F to parallel, then use a plane mirror to adjust the orientation, and finally use a short parabolic cylindrical mirror to focus longitudinally at point F5. Then, collect the image. Figure 4 , Figure 6 .

[0013] When assembling a mirror using a linear small-sized straight plate, the size is <100mm, which is close to the sun and can effectively concentrate and collect sunlight.

[0014] The receiving port collects multiple incoming beams, which are then transmitted through a light-transmitting tube to the light-using field. Its structural principle is as follows: Figure 7 To facilitate the entry of multiple strong light sources, the system is designed with a large head and a small tail, multiple openings, and a rotating base plate at the inlet that can tilt downwards at a significant angle to allow wind, sand, and rainwater to fall off quickly. It also features a knocking and vibration-assisted falling device and an automatic dust removal system. The inlet is equipped with a louvered rotating plate dimming system; rotating the plate group and coordinating its extension and retraction maximizes the collection of multiple strong light sources. Each dimming plate can be damped and stopped at any position, and its reflective properties are positioned as needed to assist the strong light in entering the light-receiving port. The system will automatically control the collection of light from multiple sources in a large lighting field, coordinated by a computer.

[0015] The light inlet is equipped with a louvered slat assembly system, which actually comprises about 4 / 5 of the slats. Each slat assembly consists of a rotatable base frame and a retractable sliding cover plate on the base frame. The base frame is fixed on the rotating shaft (it only has a frame, like a mirror frame, with a large open area in the middle, which is the strong light path). The sliding cover plate is double-sided reflective, has a slot that locks onto the base frame, and can be stretched and inserted back. When light needs to pass through, the sliding cover plate is pulled open, and the base frame is allowed to pass through; when reflection is needed, the sliding cover plate is inserted back, and the light is reflected by the sliding cover plate.

[0016] Light transmission tube design and manufacturing; materials: aluminum alloy thin plate, stainless steel thin plate, coated glass, organic glass with internal reflective film, coated plastic; the edges of the materials must be smooth and neat, without any burrs, to avoid light loss, snagging of the surface during wiping, etc., affecting operation and maintenance; light transmission tube cross-sectional structure: closed type: circular, elliptical, polygonal and various deformed tubes, which can transmit strong light very well. Non-closed type: oblique spiral tubes, closed tubes with longitudinal seams such as: round, elliptical, and polygonal shapes with unsealed edges, and various deformations, such as... Figure 8 ; Single-slit light transmission tube; such as Figure 8 In its free state, it has a 5mm gap and a sharp bevel on one side of the joint. When the clamp is tightened, the sharp blade is tightly attached to the inner wall of the pipe, which is seamless and prevents light from leaking out. At the same time, there is a stop at the bottom to prevent the clamp from being over-strengthened. Double-slit light transmission tube: One side of the polygonal light transmission tube is separate and detachable, which facilitates cleaning and maintenance. During assembly, the joints on both sides are... Figure 7The sharp bevel fits together, and the clamps tighten to create a seamless seal, preventing any light leakage.

[0017] The characteristics and operation and maintenance of optical transmission tubes: Spiral slotted tubes can bend and twist moderately, and are widely used in optical fields; seamless tubes cannot be bent, while slotted tubes are visible when bent and easy to clean, and are widely used in optical transmission lines based on practical considerations. When connecting optical transmission tubes, sockets must be used, and a chamfered edge is preferred to reduce light loss.

[0018] The light transmission tube transmits light year-round, and is affected by air pressure and wind direction. Airflow must pass through the tube, and dust will accumulate on the inner wall. Over time, this will increase light consumption. It needs to be cleaned once a year. Cleaning cotton balls are wrapped around the steel wire and pulled through. It is necessary to install double-slit tubes at certain intervals. If the clamp of the single-slit tube is loosened, there will be gaps, and the cotton balls can be pushed directly to clean the dirt.

[0019] When the two optical transmission tubes merge at the junction interface, the branch tubes should be flat and connected at a small angle. A double-sided reflective transition thin partition should be installed at the center of the interface between the two optical paths, with the partition length exceeding the junction connector. Strict verification is required to ensure that each optical path is successfully transmitted. If any individual optical path fails to transmit smoothly, a reflector should be used to adjust the angle in a large open space on the ground to ensure the smooth transmission of the strong light. Figure 9 .

[0020] The high-intensity light decryption and typical water heating facilities utilize a multi-layered truncated cone assembly made of glass. Each layer has a different taper; the outer cone is made of glass, while the inner cone surface is coated with a highly reflective material. The layers are smoothly connected, forming a single, seamless structure. The inner surface, after being coated with reflective material, becomes a diffused light cone. Figure 10 It can also be made of high-melting-point metal materials to create highly reflective, widely reflective diffusers;

[0021] Decrypted high-intensity light usage facilities First, after decryption, the strong light is dispersed and roughly evenly distributed to the inner wall of the furnace, which has been blackened and roughened beforehand, and absorbed, converted into energy, and heated the various waters on the outside of the furnace wall. Second, the decrypted strong light directly shines on the furnace-type boiler to heat the boiler water / molten salt, etc., to generate electricity; Third, in the oil extraction industry, in addition to injecting heating steam underground, we can explore methods of heating by directly transmitting strong light underground. Fourth, energy conservation and emission reduction in the metallurgical and petrochemical industries; Fifth, there are many new ways to use architectural lighting and mine ecological lighting, which will not be explained in detail here. We encourage everyone to explore and develop ways to utilize them efficiently. Attached Figure Description

[0022] Figure 1 The diagram shows the light focusing and collecting at a point on a parabolic surface. The diagram only shows the light convergence and flattening of the convex lens after the focal point. If a concave lens is used, the light convergence and flattening will occur before the focal point, and the diagram will be the same. Figure 2 The light is focused by the parabolic surface and then reflected by the ellipsoidal surface to the focal point F2. When the ellipsoidal mirror is mounted upright, the focal point F2 is at F21. When the ellipsoidal mirror is mounted off-center, the focal point F2 is at F22. (In reality, it needs to be rotated 90 degrees) to facilitate the installation and collection of light. Figure 3 After being focused by a parabolic cylindrical (groove-type) mirror, the light is reflected by an obliquely mounted elliptical cylindrical mirror to the focal line at F2. The light is then defocused and leveled by a lens, and after the mirror is adjusted, it is horizontally focused by a short parabolic cylindrical mirror to F5, and directly collected. (The light is then defocused and leveled again by a lens, and after the mirror is adjusted, it enters the light-receiving aperture, as shown in direction A.) Figure 5 ); Figure 4 After the grooved mirror focuses the light, it is defocused and leveled by the lens, and then reflected and oriented by the plane mirror (the orientation can be adjusted multiple times) and projected onto the longitudinally focused image of the parabolic cylindrical mirror. Figure 5 yes Figure 2 The diagram in direction A shows the point of light focusing of the parabolic spherical mirror. When the ellipsoidal mirror is mounted upright, the focusing point F2 is at position F21. When rotating towards the sun, the mirror surface is divided into the southern and northern halves. When it is mounted off-center, the elliptical mirror F2 is at position F22. The same applies on both the left and right sides, depending on the site conditions. Figure 6 yes Figure 3 B direction Figure 4 For the B-axis image, a parabolic short cylindrical lens group is longitudinally confocalized at point F5 to directly collect or defocus the reflected light for orientation adjustment. Figure 7 The light receiver collects the focused intense light and transmits it through the light transmission tube for long-distance transmission. Figure 8 Light transmission tubes are composed of seamless tubes, such as round, elliptical, and polygonal tubes. There are also spiral tubes that can bend (with unsealed joints). Figure 9 The junction requires a small angle between the two optical tubes, and the branch tube opening must be slowly pre-shrinked and flattened to closely match the shape of the main optical tube. The joint is narrow, and a thin partition is installed at the junction surface of the two optical tubes inside the tube to isolate the transition. The length of the partition exceeds the junction joint. Figure 10 The reflective cone is shown in only three layers for clarity and easy understanding. In actual use, it can be made into a multi-layered cylindrical truncated cone, cast and pressed in one piece, with no cross-section inside. Detailed Implementation

[0023] For the collection and gathering of sunlight, convex and concave lenses in physics can focus light at a focal point F, and parabolic mirrors can also focus light, which is convenient for large-scale applications. In practice, a suitable segment of the focusing curve in mathematical geometry can be selected and rotated around its own axis of symmetry (the same applies below) to obtain a parabola, which can focus sunlight at the focal point F of the original curve. Similarly, cylindrical mirrors focus light on the focal line F, which is the line connecting the focal points F. The specific application principles and methods are exactly the same, so only one is shown.

[0024] General rule: For the entire system, every time focusing, de-aggregation and leveling, and reflection adjustment is performed, it should be collected directly as long as it is convenient for low-cost collection, without being restricted to further processing as described in the text; The attached diagram in the text is drawn in the xy coordinate system, with the z-axis at the intersection point (0 0); the primary mirror's solar illumination axis is located at the focal line F, or at an appropriate position on or below the z-axis.

[0025] The solar intensity diagram is now collected using a parabolic surface of revolution as a primary mirror, as shown below. Figure 1 There are two methods for collecting the fees.

[0026] Method 1: Use a concave lens in front of the focal point of the strong light and a convex lens behind the focal point (hereinafter referred to as: lenses before and after the focal point) to defocus and level the light. Then use a plane mirror to reflect and adjust the direction of the light. The strong beam of light enters the receiving aperture as follows. Figure 1 The optical axis of the lens coincides with the optical axis of the condenser lens, and the focal points coincide. The focal length of the lens determines the size of the light spot, i.e., the intensity and the focusing power. Moderation is good, and it should not be too strong to avoid burning out the optical path components. (The same principle applies throughout this article, and will not be explained item by item below.) It is best to set the position of the light receiving port on the Z-axis so that the light receiving does not change when the system faces the sun. Method 2: Use an ellipsoidal surface to focus the strong light from focal point F1 to F2 (F2 can be above or below the primary reflector), then use a lens to defocus and level the light, and finally reflect it through a plane mirror to direct it into the light-receiving aperture. Figure 2 When mounted in the standard configuration, focus at point F21. The optical path divides the primary mirror into the south and north halves. The optical path channel also serves the primary mirror surface. Do not clean the primary mirror surface. When mounted in the offset configuration, focus the light in the opposite direction at point F22. The left and right sides are the same. Determine the position and orientation of the light receiving port based on the site conditions (XYZ three-dimensional adjustable).

[0027] After focusing, it is usually difficult to receive the strong light in a specific direction and position. Defocusing and repositioning the light after refocusing is to facilitate the projection of multiple strong beams onto a single receiving port for easy collection and transmission. Sporadic light use can be simplified according to the actual situation (the same applies below, no further explanation needed).

[0028] Convex and concave lens columns can converge sunlight into a line and focus it. Parabolic cylindrical mirrors (referred to as grooved mirrors) can also achieve line focusing. They have the same collection method. In production, grooved mirrors are mostly used to focus strong light into lines. The following diagram shows that after line focusing, a strong light focal line F is formed at the focal point F. There are two methods for collecting the light.

[0029] Line focusing method one: Outside the focal line F of the line focusing system, mount an elliptical cylindrical lens. The focal line F1 of the elliptical cylindrical lens should be highly aligned with the focal line F of the strong light. Focus the strong light onto the other focal line F2 of the ellipse. Figure 3 Then, the light is defocused and flattened into a parallel intensity band using a lens column. After reflection and reorientation by a plane mirror, the light is directed longitudinally to a short parabolic cylindrical mirror and focused at F5, entering the receiving aperture (or defocused and flattened again, reflected, and then entering the receiving aperture). Figure 6 The extensive ground-based installations facilitate construction and maintenance, and also reduce the weight of the sun-facing system.

[0030] Method 2 for focusing and collecting strong light: Use a lens cylinder to defocus and bring the light back to parallel, then use a plane mirror to adjust the orientation and finally use a short parabolic cylindrical mirror to focus longitudinally at F5 to collect the light. Figure 4 , Figure 6 During this process, the reflective direction can be adjusted multiple times, which facilitates longitudinal focusing of the parabolic short cylindrical lens at point F5 under the principle of low cost.

[0031] When assembling a linear small-sized straight-plate lens, the size of the primary light-collecting lens assembly should be small, while the defocusing and leveling lens should be larger to achieve good focusing and collection at a low cost.

[0032] The receiving port collects multiple incoming beams, which are then transmitted through a light-transmitting tube to the light-using field. Its structural principle is as follows: Figure 7 To facilitate the entry of multiple strong light sources, the structure is designed with a large head and a small tail, featuring multi-stage openings. The base plate at the inlet can rotate and tilt downwards at a significant angle, allowing mixed sand and rainwater to fall off quickly. A knocking and vibration-assisted falling device is also included, along with an automatic dust removal system when necessary. The top is equipped with a reversible shielding cover with stretching or two-stage flipping wings, all highly reflective for easy light adjustment. The inlet features a louvered light-adjusting system that rotates and extends to maximize the collection of multiple strong light sources. Each light-adjusting louver can be damped and stopped at any position, positioning and reflecting light as needed to assist the strong light entering the light-receiving port. The large lighting field and multiple incoming light sources will be automatically controlled and coordinated by a computer. Figure 7 .

[0033] The light inlet is equipped with a louvered slat assembly system, which actually comprises about 4 / 5 of the slats. Each slat assembly consists of a rotating base frame and a retractable sliding cover plate on the base frame. The base frame is fixed on the rotating shaft (it only has a frame, like a picture frame, with a large open area in the middle, which is the strong light path). The sliding cover plate is double-sided reflective, has a slot that locks onto the base frame, and can be stretched and inserted back. When light needs to pass through, the sliding cover plate is pulled open, and the base frame is allowed to pass through; when reflection is needed, the sliding cover plate is inserted back, and the light is reflected by the sliding cover plate.

[0034] Light transmission tube design and manufacturing: materials include aluminum alloy thin plate, stainless steel thin plate, coated glass, organic glass with internal reflective film, and coated plastic; the blank material is processed with bevels, and the edges must be high-precision, smooth and neat, without any burrs, so as not to increase the light consumption later, and at the same time, to avoid the smudges during wiping, etc., which will lead to a vicious cycle, affecting the efficient transmission of strong light and affecting maintenance. Light transmission tube cross-sectional structure: closed type: circular, elliptical, polygonal and various deformed tubes, which can transmit strong light very well; Non-closed type: oblique spiral tubes, closed tubes with longitudinal seams such as: round, elliptical, and polygonal shapes with unsealed edges, and various deformations, such as... Figure 8 ; Single-slit light transmission tube: As shown in the diagram, in its free state, it has a 5mm gap. One side of the joint has a sharp bevel, which, when tightened by the clamp, fits tightly against the inner wall of the tube, ensuring a seamless seal and preventing light leakage. A stop block at the bottom prevents the clamp from being over-tightened. Double-slit light transmission tube: One side of the polygonal light transmission tube is separate and detachable, facilitating cleaning and maintenance. During assembly, both sides of the joint have bevels... Figure 7 The sharp bevel fits together, and the clamps tighten to create a seamless seal, preventing any light leakage.

[0035] The characteristics and operation and maintenance of optical transmission tubes: Spiral slotted tubes can bend and twist moderately, and are widely used in optical fields; seamless tubes cannot be bent, while slotted tubes are visible when bent and easy to clean, and are widely used in optical transmission lines based on practical considerations. When connecting optical transmission tubes, sockets must be used, and a chamfered edge is preferred to reduce light loss.

[0036] Light transmission tubes are used for outdoor light transmission year-round. Affected by air pressure and wind direction, airflow inevitably passes through the tube, causing dust to accumulate on the inner wall. Over time, this increases light consumption. It is necessary to clean the tube once a year. Cleaning cotton balls are wrapped around the steel wire and pulled through. It is essential to install double-slit tubes at certain intervals. For single-slit tubes, the clamps can be loosened to create gaps, allowing the cotton balls to be pushed directly to clean the dirt. Since light transmission tubes are outdoors year-round, they are not afraid of heat dissipation, but they are susceptible to water and dust entering the tube. Moisture also accelerates corrosion. It is best to install a simple protective cover that is rainproof, snowproof, dustproof, and heat-resistant. A quick and convenient restoration method, such as a zipper, should be adopted to facilitate operation and maintenance.

[0037] When two optical transmission tubes merge at the junction interface, the branch tube must be flattened and connected at a small angle. The transition section should be flattened gradually and slightly in advance to adapt to the cross-sectional shape of the main tube, and connected with a small, flat opening. A double-sided reflective transition thin partition should be placed at the center of the interface between the two optical paths, with the partition length exceeding the junction joint. Strict calculations must be performed to ensure that each optical path is transmitted smoothly. If any individual optical path cannot be transmitted smoothly, a reflector should be used to adjust the angle in a large space on the ground to ensure the smooth transmission of strong light. Figure 9 .

[0038] The high-intensity light decryption device is made of a multi-layered truncated cone-shaped assembly of glass. Each layer has a different taper; the outer cone is made of glass, while the inner cone is coated with a highly reflective material. The layers are smoothly connected, forming a single, seamless structure. The inner surface, after being coated with reflective material, becomes a diffused light cone. Figure 10 It can also be made of high-melting-point metal materials to create highly reflective, widely reflective diffusers;

[0039] The declassified high-intensity light-emitting furnace—for elongated water tanks—is a long-necked, irregularly shaped, flattened spherical, highly thermally conductive metal body with a corrosion-resistant exterior. To enhance light absorption and heat transfer, claw-shaped wing plates can be installed. The inner wall of the furnace is pre-treated with blackening and roughening, allowing it to effectively absorb strong light and convert it into heat energy. This heats various media on the outer side of the furnace wall, such as water, oil, and gas. It can also irradiate other objects to raise their temperature, such as directly irradiating boiler furnace shells, heating boiler water / molten salt, etc., for power generation, and other applications. For large water tanks, the furnace is spherical or rugby ball-shaped, with hollow protrusions to further enhance light absorption and heat dissipation.

[0040] Typical use cases 1. Lithium extraction from salt lakes using heating of massive amounts of brine; 2. Direct sunlight can irradiate furnace-type boilers to heat boiler water, molten salt, etc., and generate electricity; 3. In the oil extraction industry, in addition to injecting heating steam underground, the method of directly transmitting strong light to the ground for heating can be explored; 4. Energy conservation and emission reduction in the petrochemical and metallurgical industries (steel plates can be cut when the concentration is high, ranging from 10,000 to 100,000 times). 5. Architectural lighting and mine ecological lighting; 6. In daily life, strong light can enter the room to heat water, and the heating and light-absorbing panel can heat the air and provide heating without the need for outdoor pipelines, water tanks and other facilities. It is also particularly efficient and energy-saving. There are many new ways to use it, which I will not go into detail about one by one. I encourage everyone to explore and develop ways to make efficient use of it.

Claims

1. The method and equipment for high-concentration sunlight transmission and utilization is a complete set of methods for the high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized by the following aspects: Step 1: Point-focused intense light generation and collection – Using a standard lens and a rotating parabolic mirror to converge sunlight, focusing the intense light at focal point F, and then using a widely used parabolic mirror to concentrate and expand the light, there are two methods for collecting the intense light: Method 1: Use a concave lens in front of the strong light focal point F / a convex lens behind the focal point to eliminate convergence and divergence, restoring the light to parallel (hereinafter referred to as using a lens to de-converge and return to parallel / de-converge and return to parallel), and then use a plane mirror to reflect and adjust the direction before shooting into the light receiving port; Method 2: After the strong light focal point F, mount an ellipsoidal mirror either upright or offset, with focal point F1 coinciding with the strong light focal point F. The positions of the ellipsoidal mirror F2 are F21 and F22 respectively. The light collection methods are the same for upright and offset mounting. Now, only draw the sunlight focusing, reflection focusing, defocusing and parallelization, and reflected light collection of F22. Step Two: Line Focusing for Strong Light Generation and Collection – Using a lens column or parabolic cylindrical mirror (called a grooved mirror), sunlight is focused onto the focal line F. There are two methods for collecting strong light: Method 1: Sunlight is focused into a strong F-line (focal line) by a parabolic cylindrical groove. An elliptical cylindrical groove is placed outside the focal line, with its focal line F1 coinciding with F. The strong light is then focused onto the focal line F2. A lens cylinder is then used to defocus and diverge the light back into a parallel band. The light is then reflected and oriented by a plane mirror. Finally, a long-focal-length parabolic cylindrical mirror is used to focus the light longitudinally at point F5, which then enters the main light-receiving port. Method 2: Use a lens cylinder to defocus and level the strong light inside and outside the focal line F, then use a mirror to reflect and adjust the direction (this can be adjusted n times) until the light is focused longitudinally at point F5 by the parabolic cylindrical mirror. Strong light can be collected directly or after processing (collected after deagglomeration and leveling, and after adjusting the direction of reflection); When using a large mirror for lighting, the vertical focusing lens can be installed on both sides, with the lighting mirror and the vertical focusing lens being staggered to the east and west respectively. The third stage is the light-receiving port, which is large at the beginning and small at the end. The wall panel at the inlet can be stretched and extended, and there is also a rotating shaft that can change its position. A coaxial louvered rotating plate assembly (actually 4 or 5 pieces, with hollow plates to allow light to pass through) is installed at the inlet. Each rotating plate can be stretched and extended appropriately (sliding sleeve, slot). All plate surfaces are double-sided reflective. Step 4: Design and fabrication of the light transmission tube. Materials: aluminum alloy sheet, stainless steel sheet, coated glass, plastic with internal reflective film, acrylic glass with internal reflective film, etc. Cross-sectional structure of the light transmission tube: Enclosed type (seamless pipe, welded pipe): circular, elliptical, polygonal and various deformed pipes, which can transmit strong light very well; Non-sealed type: There are single-seam tubes and double-seam tubes, specifically including oblique spiral threaded tubes, round and elliptical overlapping bayonets that are not sealed (not welded to seal), polygonal overlapping bayonets and various deformations; The inside of the tube is smooth and easily reflects light, without defects such as light reversal, reflection, light absorption, light loss, or burrs. When connecting light transmission tubes, a socket must be inserted with a chamfered edge to minimize light consumption. Step 5, Merging Point - When the two light transmission tubes merge, they should be connected in a flat, small angle, with a transition partition at the center. The partition should be highly reflective on both sides. Section Six: High-Density Intensive Light Decryption and Heating Application – Made of glass, the outer side is conical, and the inner side is hollowed out from the bottom into a cone or pyramid shape and coated with a reflective film to diffuse the light. After the intense light is dispersed, it is roughly evenly dispersed into the furnace. The pre-blackened and roughened inner wall of the furnace easily absorbs the light and converts it into heat energy, heating the water on the outside of the furnace wall. It can also be used for solar thermal power generation, underground heating in oil extraction, and heating indoor appliances by irradiating light in daily life.

2. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... As described in Method 1 of the point focusing process: the focused strong light is defocused and brought back to parallel using a concave / convex lens, and then the reflected light is adjusted to direct the strong light into the main light receiving port.

3. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... As described in Method 2 of the point focusing process: the strong light is reflected by an ellipsoidal mirror and then focused at F2. After that, the light is defocused and leveled by a lens, and then the reflected light is adjusted to direct the strong light into the main light receiving port.

4. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... In the second step of focusing, as described in Method 1: An elliptical cylindrical grooved mirror is placed on the focusing line F to focus the strong light from the focal point F1 to the focal point F2. Then, a lens column is used to defocus and flatten the light into a parallel band. The light is then reflected and oriented by a plane mirror, and finally focused at F5 by a parabolic cylindrical mirror, entering the main light receiving port.

5. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... In the second step of focusing, as described in Method 2: use a lens column to defocus and level the strong light inside and outside the focal line F, and then use a mirror to reflect and adjust the direction (this can be done multiple times) so that the light is focused longitudinally at point F5 by the parabolic cylindrical mirror.

6. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... As described in Section 3: The light-receiving opening is large at the top and small at the bottom, and the imported wall panel is equipped with a series of combined dimming, dustproof and rainproof panels with stretching and rotating shafts; the imported door is also equipped with a coaxial louvered rotating plate group (4 / 5 groups in this article), which can be adjusted in position and has multiple combinations such as stretching and sliding covers to maximize the intake of multiple strong lights.

7. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... Section 4 describes the light transmission tube: Light transmission tubes have various structures, including closed-loop and open-loop types, and their applications include linear transmission and bendable transmission.

8. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... As described in step five: When the two optical transmission tubes merge at the junction, they should be connected in a flat, small angle. A transition partition should be set at the center of the optical path of the merging section to extend to the interface position. The partition should be smooth and highly reflective on both sides.

9. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for high-concentration enhancement, collection, transmission, and utilization of clean sunlight, characterized in that... As described in Section Six: A light-scattering cone is a glass cone with an outer cone shape and an inner cone or pyramid shape hollowed out from the bottom and coated with a reflective film (to disperse strong light roughly and evenly into the light furnace).

10. The high-concentration sunlight transmission and utilization method and equipment according to claim 1 is a complete method for enhancing, collecting, transmitting, and utilizing clean sunlight with high concentration. Its characteristic is that in the step six, after decryption, strong light heating is described as follows: the inner wall of the light furnace is pre-blackened and roughened, making it extremely easy to absorb light and convert it into heat energy to heat the water outside the light furnace wall. Applications include lithium extraction from salt lakes, solar thermal power generation, underground heating in oil extraction, petrochemical heating, ecological lighting in mines, building lighting, concentrated strong light irradiation for indoor devices to heat water and provide heating in daily life, and scientific experiments for students.

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