Heating device utilizing solar energy
By arranging convex lenses and concave mirrors in the solar heating device, it is ensured that there are heating sources on the upper and lower sides of the heating container, which solves the problem of low heating efficiency in the existing technology and achieves efficient solar energy utilization and environmentally friendly heating effects.
Patent Information
- Application Number
- CN202411566765.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-05
- Publication Date
- 2025-01-21
- Estimated Expiration
- Not applicable · inactive patent
AI Technical Summary
In the existing solar heating device, the heating container is located on the upper side of the concave mirror, causing some sunlight to be blocked, thereby reducing the heating efficiency.
Design a heating device, in which the heating container is located on the lower side of the concave mirror, and a convex lens is set on the upper side. The focus of the convex lens and the concave mirror are both located on the heating container, ensuring that there are heating sources on both upper and lower sides of the heating container.
By using the reflection of the concave mirror and the concentration of the convex lens, the efficient heating of heating containers is achieved, making full use of solar energy, reducing environmental pollution, and improving heating efficiency.
Smart Images
Figure CN119333978A_ABST
Abstract
Description
Technical Field
[0001] The invention relates to the technical field of new energy, in particular to a heating device utilizing solar energy. Background Art
[0002] In recent years, as environmental pollution problems have become increasingly serious, environmentally friendly energy devices such as solar energy or wind energy have attracted people's attention. For example, a solar cooker in the use of solar energy collects solar energy onto a heating container on the upper side of the concave mirror through a concave mirror, thereby heating the food contained in the heating container. However, since the heating container is located on the upper side of the concave mirror, this will cause a portion of the sunlight to be blocked by the heating container. As the amount of food that needs to be placed increases, the size of the heating container will also increase accordingly, which will lead to an increase in the blocked range, further reducing the available solar energy, and thus reducing the heating efficiency. Summary of the invention
[0003] The purpose of the present invention is to solve the problems existing in the prior art and provide a heating device utilizing solar energy, which can utilize solar energy to efficiently complete heating, fully utilize solar energy, and reduce environmental pollution.
[0004] In order to achieve the above object, the present invention is implemented through the following technical solutions:
[0005] A heating device utilizing solar energy comprises a heating container and a concave mirror arranged on the lower side of the heating container, a convex lens is arranged on the side of the heating container away from the concave mirror, the focal points of the convex lens and the concave mirror are both located on the heating container, the concave mirror is fixed on a supporting frame, the heating container is connected to the concave mirror via a first connecting frame, and the convex lens is connected to the heating container or the concave mirror or the first connecting frame via a second connecting frame.
[0006] Preferably, the shape of the heating container is round, square or spherical.
[0007] Preferably, a plurality of protrusions are provided on the upper side and / or the lower side of the heating container.
[0008] Preferably, the protrusion is ring-shaped.
[0009] Preferably, the exterior of the heating container is provided with a black coating.
[0010] Preferably, the first connecting frame includes a bracket and a plurality of first adjusting rods with adjustable lengths uniformly arranged along the circumference of the bracket, one end of the first adjusting rod is hinged to the bracket, and the other end is hinged to the concave mirror.
[0011] Preferably, the second connecting frame includes an annular frame for fixing the convex lens and a plurality of second adjusting rods with adjustable lengths evenly arranged along the circumference of the annular frame, and one end of the second adjusting rod is hinged to the annular frame, and the other end is hinged to the heating container or the concave mirror or the first connecting frame.
[0012] Preferably, the diameter of the concave mirror is larger than the diameter of the convex lens, and the diameter of the concave mirror is larger than the diameter of the heating container.
[0013] Preferably, the heating container is provided with a liquid inlet pipe and a liquid outlet pipe, the end of the liquid inlet pipe away from the heating container is fixed to the bottom of the storage tank and communicated with the storage tank, and the end of the liquid outlet pipe away from the heating container is fixed to the upper part of the outer wall of the storage tank and communicated with the storage tank.
[0014] Preferably, the storage tank is fixed on the support frame, and the height of the storage tank is higher than the height of the heating container.
[0015] Compared with the prior art, the beneficial effects of the present invention are:
[0016] 1. The present invention utilizes the reflection of a concave mirror to heat the bottom of the heating container, utilizes the focusing of a convex lens to heat the top of the heating container, and has heating sources on both the upper and lower sides of the heating container. Solar energy can be utilized to efficiently complete heating, fully utilize solar energy, and reduce environmental pollution.
[0017] 2. For fluid heating, the present invention is equipped with a storage tank, which relies on the fluid's own gravity to transport the fluid to the heating container, and then utilizes the thermal expansion of the fluid in the heating container to make the fluid in the heating container flow back to the storage tank, so that the fluid in the storage tank can be circulated and heated. BRIEF DESCRIPTION OF THE DRAWINGS
[0018] Figure 1 It is one of the structural schematic diagrams of the present invention;
[0019] Figure 2 This is the second structural schematic diagram of the present invention.
[0020] Numbers in the accompanying drawings: 1, heating container; 11, protrusion; 2, concave mirror; 3, convex lens; 4, support frame; 5, first connecting frame; 51, bracket; 52, first adjusting rod; 6, second connecting frame; 61, annular frame; 62, second adjusting rod; 7, storage tank; 71, liquid inlet pipe; 72, liquid outlet pipe. DETAILED DESCRIPTION
[0021] The present invention will be further described below in conjunction with specific embodiments. It should be understood that these embodiments are only used to illustrate the present invention and are not intended to limit the scope of the present invention. In addition, it should be understood that after reading the content taught by the present invention, those skilled in the art can make various changes or modifications to the present invention, and these equivalent forms fall within the scope limited by the application equally.
[0022] Example: As shown in the attached Figure 1-2 As shown, the present invention is a heating device utilizing solar energy, comprising a heating container 1 and a concave mirror 2 arranged at the lower side of the heating container 1. The shape of the heating container 1 can be cylindrical or in other shapes, such as square or spherical. A detachable cover can be arranged on the top of the heating container 1, and the cover and the heating container 1 can be connected by threads.
[0023] A convex lens 3 is provided on the side of the heating container 1 away from the concave mirror 2. The focal points of the convex lens 3 and the concave mirror 2 are both located on the heating container 1. When in use, sunlight will be incident along a direction substantially parallel to the main axis (X1) of the convex lens 3, and then refracted toward the focal point of the convex lens 3. In addition, the convex lens 3 is arranged so that the focal point is located in the inner area of the heating container 1. At this time, the sun, the heating container 1 and the heating container 1 are positioned along the center line. The main axis is arranged in sequence when installed. Therefore, the sunlight is refracted by the convex lens 3 and concentrated on the inner area of the heating container 1.
[0024] The concave mirror 2 is fixed on the support frame 4, the heating container 1 is connected to the concave mirror 2 via a first connecting frame 5, and the convex lens 3 is connected to the heating container 1 or the concave mirror 2 or the first connecting frame 5 via a second connecting frame 6.
[0025] The concave mirror 2 is arranged so that its concave surface faces the sun, and the sun may be located on the main axis of the concave mirror 2. Then, the sunlight will be incident in a direction substantially parallel to the main axis (X2) of the concave mirror 2, and then reflected toward the focus of the concave mirror 2. Here, the concave surface of the concave mirror 2 may be formed as a parabola or a spherical surface, and may be formed in any other known shape as long as it can focus the sunlight to a single point.
[0026] Preferably, in order to increase the heating area of the heating container, a plurality of protrusions 11 are provided on the upper side and / or the lower side of the heating container 1, and a protrusion is provided on at least one of the upper and lower surfaces of the heating container 1, so that the surface area of the heating container 1 that absorbs solar energy can be increased, and the heated object inside can be heated more effectively.
[0027] Furthermore, the protrusion 11 is in a circular ring shape, and a plurality of protrusions 11 are in a concentric ring shape, which can maximize the surface area and uniformly absorb solar energy as a whole.
[0028] The heating container is made of a material with excellent thermal conductivity so that the object to be heated inside can be heated more quickly. Preferably, the outside of the heating container 1 is provided with a black coating.
[0029] Preferably, in order to improve the heating efficiency, the first connecting frame 5 includes a bracket 51 and a plurality of first adjusting rods 52 with adjustable lengths evenly arranged along the circumference of the bracket 51, one end of the first adjusting rod 52 is hinged to the bracket 51, and the other end is hinged to the concave mirror 2, and the bracket 51 is used to fix the heating container 1. By adjusting the position of the heating container 1, the position of the focus of the concave mirror on the heating container 1 can be adjusted.
[0030] Preferably, in order to improve the heating efficiency, the second connecting frame 6 includes an annular frame 61 for fixing the convex lens 3 and a plurality of second adjusting rods 62 with adjustable lengths evenly arranged along the circumference of the annular frame 61, and one end of the second adjusting rod 62 is hinged to the annular frame 61, and the other end is hinged to the heating container 1 or the concave mirror 2 or the first connecting frame 5, so that the focus of the convex lens 3 can be adjusted as needed.
[0031] The main axis of the convex lens 3 and the main axis of the concave mirror 2 can be arranged to substantially coincide with each other. That is, the sun, the convex lens 3, the heating container 1 and the concave mirror 2 can be arranged in a row along the main axis (X1, X2). However, in this case, if the diameter of the heating container 1 is equal to or greater than the diameter of the concave mirror 2, the sunlight incident on the main axis (X1) will be blocked and will not reach the concave mirror 2.
[0032] Therefore, in order for the sunlight to reach the concave mirror 2 and be reflected by the concave mirror 2, the diameter of the concave mirror 2 must be larger than the diameter of the heating container 1. In addition, if the diameter of the convex lens 3 is equal to or larger than the diameter of the concave mirror 2, the sunlight incident in the direction parallel to the main axis (X1, X2) is transmitted only through the convex lens 3. It will be refracted and concentrated in the inner area of the heating container 1, and will not reach the concave mirror 2.
[0033] Therefore, in order to allow part of the sunlight to be reflected by the concave mirror 2 , the diameter of the concave mirror 2 must be larger than the diameter of the convex lens 3 .
[0034] If the heating container 1 accommodates the entire heating object, the size of the heating container 1 must also be increased if the amount of the heating object increases. However, as the size of the heating container 1 increases, the amount of sunlight that can reach the concave mirror 2 decreases, so there is a problem that the size of the convex lens 3 or the concave mirror 2 must also be increased. If the object to be heated is a fluid, the fluid is basically stored in a separate storage tank 7, and then flows from the storage tank 7 to the heating container 1 along the liquid inlet pipe 71 to be heated in the heating container 1. After being heated in the heating container 1, it flows back to the storage tank 7 from the heating container 1 along the liquid outlet pipe 72, and a pump body can be installed on the liquid inlet pipe 71 or the liquid outlet pipe 72 to transport the fluid. The heating container 1 does not accommodate the entire object to be heated at one time, but temporarily accommodates only a part of the object to be heated, so no matter how large the amount of the entire object to be heated is, it can maintain the best shape for effectively absorbing solar energy.
[0035] Further, in order to reduce costs, the storage tank 7 is placed higher than the heating container 1, so that the liquid inlet pipe 71 is relatively connected to the lower part of the storage tank 7, and the liquid outlet pipe 72 is relatively connected to the upper part of the storage tank 7. Then, the fluid in the storage tank 7 will flow to the heating container 1 along the liquid inlet pipe 71 by virtue of its position energy. In addition, the fluid heated in the heating container 1 flows into the storage tank 7 along the liquid outlet pipe 72 due to its own thermal expansion and the pressure applied by the liquid inlet pipe 71. Of course, a separate method is required to force the fluid to flow from the storage tank 7 to the heating container 1 through the liquid inlet pipe 71 or from the heating container 1 to the storage tank 7 through the liquid outlet pipe 72, and a backflow prevention device may also be installed in the liquid inlet pipe 71 and the liquid outlet pipe 72 to ensure the circulation of such fluid.
[0036] When the present invention is in use, first, the user pours the fluid to be heated into the storage tank 7. At this time, it can be poured below the connection point of the liquid outlet pipe 72 of the storage tank 7. Then, the fluid in the storage tank 7 will flow to the heating container 1 along the liquid inlet pipe 71 by virtue of its potential energy. At the same time, the sun, the convex lens 3, the heating container 1 and the concave mirror 2 are arranged in sequence along the main axis (X1, X2). Therefore, the sunlight is incident in a direction parallel to the main axis (X1, X2) and first reaches the convex lens 3. Part of the sunlight within the range of the convex lens 3 is refracted and gathered to the internal area through the upper surface of the heating container 1. The remaining part of the sunlight that is not refracted by the convex lens 3 reaches the concave mirror 2, is reflected by the concave mirror 2, and passes through the bottom of the heating container 1 to reach its internal area.
[0037] The part of sunlight that is blocked by the heating unit and does not reach the concave mirror is not utilized in any way. According to the above construction, a part of the sunlight that is blocked by the heating container 1 and cannot reach the concave mirror 2 is transmitted to the convex lens 3 arranged in front of the heating container 1, and is concentrated in the inner area of the heating container 1. Therefore, all sunlight within the range of the concave mirror 2 can be used to heat the container 1. The fluid heated in the heating container 1 can flow into the storage tank 7 along the liquid outlet pipe 72 due to its own thermal expansion and the pressure applied by the liquid inlet pipe 71. At the same time, the storage tank 7 is made of a material with excellent thermal conductivity so that the heat of the heated fluid will not be dissipated to the outside, and its exterior is made of black and can be coated with a material such as Teflon. In addition, the liquid inlet pipe 71 and the liquid outlet pipe 72 can be separately insulated.
Claims
1. A heating device utilizing solar energy, comprising a heating container (1), and a concave mirror (2) disposed on the lower side of the heating container (1), characterized in that: A convex lens (3) is provided on a side of the heating container (1) away from the concave mirror (2); the focal points of the convex lens (3) and the concave mirror (2) are both located on the heating container (1); the concave mirror (2) is fixed on a support frame (4); the heating container (1) is connected to the concave mirror (2) via a first connecting frame (5); and the convex lens (3) is connected to the heating container (1) or the concave mirror (2) or the first connecting frame (5) via a second connecting frame (6).
2. A solar energy heating device according to claim 1, characterized in that: The outer shape of the heating container (1) is circular, square or spherical.
3. A solar energy heating device according to claim 1, characterized in that: A plurality of protrusions (11) are provided on the upper side and / or the lower side of the heating container (1).
4. A solar energy heating device according to claim 3, characterized in that: The protrusion (11) is in a circular ring shape.
5. The solar energy heating device according to claim 1, characterized in that: The exterior of the heating container (1) is provided with a black coating.
6. A solar energy heating device according to claim 1, characterized in that: The first connecting frame (5) comprises a bracket (51) and a plurality of first adjusting rods (52) with adjustable lengths evenly arranged along the circumference of the bracket (51); one end of the first adjusting rod (52) is hinged to the bracket (51) and the other end is hinged to the concave mirror (2).
7. A solar energy heating device according to claim 1, characterized in that: The second connecting frame (6) comprises an annular frame (61) for fixing the convex lens (3) and a plurality of second adjusting rods (62) with adjustable lengths which are evenly arranged along the circumference of the annular frame (61), and one end of the second adjusting rod (62) is hinged to the annular frame (61), and the other end is hinged to the heating container (1) or the concave mirror (2) or the first connecting frame (5).
8. The solar energy heating device according to claim 1, characterized in that: The diameter of the concave mirror (2) is greater than the diameter of the convex lens (3), and the diameter of the concave mirror (2) is greater than the diameter of the heating container (1).
9. The solar energy heating device according to claim 1, characterized in that: The heating container (1) is provided with a liquid inlet pipe (71) and a liquid outlet pipe (72); one end of the liquid inlet pipe (71) away from the heating container (1) is fixed to the bottom of the storage tank (7) and is in communication with the storage tank (7); and one end of the liquid outlet pipe (72) away from the heating container (1) is fixed to the upper part of the outer wall of the storage tank (7) and is in communication with the storage tank (7).
10. A solar energy heating device according to claim 9, characterized in that: The storage tank (7) is fixed on the support frame (4), and the height of the storage tank (7) is higher than the height of the heating container (1).