Efficient solar heat collector

Abstract

The utility model discloses an efficient solar thermal collector, which belongs to the technical field of solar thermal collectors and comprises a mounting support, a plurality of U-shaped reflecting grooves arranged in parallel are arranged on the mounting support, and aluminum or silver coatings are coated on the inner side surfaces of the reflecting grooves. A heat collecting pipe consistent with the U-shaped light reflecting groove in moving direction is arranged in each light reflecting groove, an oil guide pipe is arranged in each heat collecting pipe, a convex hull heat storage device is arranged outside each oil guide pipe and inside the corresponding heat collecting pipe, and each oil guide pipe is provided with a medium inlet and a medium outlet. According to the solar heat collector, solar energy is collected through the arrayed light reflecting grooves and the heat collecting pipes, the inner side faces of the light reflecting grooves are coated with the aluminum or silver coatings, the heat collecting pipes are coated with the metal ceramic absorbing coatings, the sunlight absorbing efficiency is greatly improved, and therefore the overall performance of the heat collector is improved.

Description

Technical Field

[0001] This utility model belongs to the field of solar collector technology, specifically relating to a high-efficiency solar collector. Background Technology

[0002] With the continuous growth of energy demand, the energy crisis is becoming increasingly severe. Traditional fossil fuels are non-renewable and pollute the environment, making the development of new clean energy sources particularly crucial. Solar energy, as a clean and pollution-free new energy source, does not produce pollutants during its utilization, effectively reducing the risk of environmental pollution and playing a vital role in protecting the Earth's ecosystem.

[0003] Solar energy can be utilized in various ways, among which photothermal conversion technology is widely used due to its advantages such as high efficiency, economy, and strong compatibility. However, because the energy density of solar energy after reaching the Earth is relatively low and discontinuous, large-scale development and utilization of solar energy still faces challenges. For a long time, how to convert low-grade solar energy into high-grade thermal energy and enrich solar energy has been a focus of attention in solar thermal utilization and thermal power generation systems. Developing new and efficient solar collectors, especially those with high absorptivity and low emissivity, is crucial for improving the efficiency of solar energy utilization. Summary of the Invention

[0004] To address the aforementioned problems, this utility model discloses a high-efficiency solar collector that collects solar energy through an array of reflective grooves and heat collection tubes. The inner surface of the reflective grooves is coated with an aluminum or silver coating, and the outside of the heat collection tubes is sprayed with a metal-ceramic absorption coating, which greatly improves the absorption efficiency of sunlight and thus enhances the overall performance of the collector.

[0005] To achieve the above objectives, the specific technical solution of this application is as follows:

[0006] A high-efficiency solar collector includes a mounting bracket with several parallel reflective grooves arranged in a U-shape. The inner surface of each reflective groove is coated with an aluminum or silver coating. Each reflective groove contains a heat collection tube aligned with the direction of the U-shaped reflective groove. The heat collection tube contains an oil guide tube, and a convex heat storage device is located inside the heat collection tube outside the oil guide tube. The oil guide tube has a medium inlet and a medium outlet.

[0007] Based on the above technical features, furthermore, both ends of the reflective groove are connected to the mounting bracket, and the heat collection tube is connected to the reflective groove through a supporting column.

[0008] Based on the above technical features, preferably, the mounting bracket is provided with liftable legs, and the height of the liftable legs is adjusted by a drive device.

[0009] Based on the above technical features, the support legs further include end support legs and middle support legs. The height of the end support legs is adjusted by a drive device, and the middle support legs are raised and lowered synchronously. The drive device is a stepper motor or an electric push rod.

[0010] Based on the above technical features, furthermore, the mounting bracket is provided with a tilt sensor on the back.

[0011] Based on the above technical features, preferably, the heat collection tube is coated with a metal-ceramic absorption coating.

[0012] Compared with the prior art, the beneficial effects of this application are as follows:

[0013] This application collects solar energy through an array of reflective grooves and heat collection tubes. The inner side of the reflective grooves is coated with an aluminum or silver coating, and the outside of the heat collection tubes is sprayed with a metal-ceramic absorbing coating, which greatly improves the absorption efficiency of sunlight and thus enhances the overall performance of the heat collector.

[0014] The design of the convex hull thermal collector increases the thermal energy storage area and improves the thermal storage capacity of the collector, enabling the collector to continuously provide thermal energy even when there is insufficient sunlight.

[0015] The adjustable feet and tilt sensor, driven by a stepper motor or electric push rod, allow the solar collector to adjust its angle according to actual solar radiation conditions, maximizing the reception of solar radiation and improving the utilization rate of solar energy. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the structure of a high-efficiency solar collector according to the present invention;

[0017] Figure 2 This is a schematic diagram of the cross-sectional structure of the heat collection pipe in this utility model;

[0018] List of identifiers in attached diagrams:

[0019] 1. Mounting bracket; 2. Reflector groove; 3. Heat collection tube; 4. Convex bulge heat storage tank; 5. Oil guide pipe; 6. Support column; 7. End support foot; 8. Middle support foot; 9. Stepper motor; 10. Tilt sensor. Detailed Implementation

[0020] The present invention will be further illustrated below with reference to the accompanying drawings and specific embodiments. It should be understood that the following specific embodiments are for illustrative purposes only and are not intended to limit the scope of the invention.

[0021] It should be noted that the terms "upper," "lower," "left," "right," "front," and "rear" used in the following description refer to the directions shown in the accompanying drawings, while the terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. Furthermore, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to fixed connections, detachable connections, or integral connections; they can refer to mechanical connections or electrical connections; they can refer to direct connections or indirect connections through an intermediate medium; and they can refer to the internal connection between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0022] like Figure 1 As shown, an embodiment of a high-efficiency solar collector includes a mounting bracket 1, on which a plurality of parallel reflective grooves 2 are provided. The reflective grooves 2 are U-shaped and the inner surface of the reflective grooves 2 is coated with an aluminum or silver coating.

[0023] Each reflective groove 2 contains a heat collection tube 3 aligned with the U-shaped reflective groove. Inside the heat collection tube 3 is an oil guide tube 5, which is made of copper. Outside the oil guide tube 5, inside the heat collection tube, is a convex-shaped heat storage device 4. The oil guide tube 5 has a medium inlet and a medium outlet. The design of the convex-shaped heat storage device 4 increases the heat storage area and improves the heat storage capacity of the heat collector, enabling it to continuously provide heat even when sunlight is insufficient.

[0024] Furthermore, both ends of the reflective groove 2 are connected to the mounting bracket 1, and the heat collection tube 3 is connected to the reflective groove through the supporting column 6.

[0025] Preferably, the mounting bracket 1 is provided with height-adjustable legs, including end legs 7 and middle legs 8. The height of the end legs 7 at both ends can be adjusted by a drive device, and the middle leg rises and falls synchronously. Preferably, the drive device is a stepper motor 9, but it can also be an electric push rod. By adjusting the height of the end legs 7 at both ends, the inclination of the mounting bracket with respect to the ground can be adjusted.

[0026] Furthermore, the mounting bracket is equipped with a tilt sensor 10 on its back. Typically, in summer, the tilt angle between the mounting bracket and the ground is local latitude -10°, and in winter, it is adjusted to local latitude +10°.

[0027] Preferably, the collector tube is coated with a metal-ceramic absorption coating, achieving a solar energy absorption rate of over 95%.

[0028] In summary, this application has a simple structure, collects solar energy through an array of reflective grooves and heat collection tubes, coats the inner side of the reflective grooves with an aluminum or silver coating, and sprays a metal-ceramic absorbing coating on the outside of the heat collection tubes, which greatly improves the absorption efficiency of sunlight and thus enhances the overall performance of the solar collector.

[0029] It should be noted that the accompanying drawings merely illustrate the technical concept of the present invention and should not be used to limit the scope of protection of the present invention. For those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and all such improvements and modifications fall within the scope of protection of the claims of the present invention.

Claims

1. A high-efficiency solar collector, characterized in that: The device includes a mounting bracket with several parallel reflective grooves arranged in a U-shape. The inner surface of each reflective groove is coated with an aluminum or silver coating. Each reflective groove contains a heat collection tube aligned with the direction of the U-shaped reflective groove. The heat collection tube contains an oil guide tube, and the heat collection tube outside the oil guide tube contains a convex heat storage device inside the heat collection tube. The oil guide tube has a medium inlet and a medium outlet.

2. The high-efficiency solar collector according to claim 1, characterized in that: The two ends of the reflective groove are connected to the mounting bracket, and the heat collection tube is connected to the reflective groove through the support column.

3. The high-efficiency solar collector according to claim 1, characterized in that: The mounting bracket is equipped with height-adjustable legs, the height of which can be adjusted by a drive device.

4. A high-efficiency solar collector according to claim 3, characterized in that: The support legs include end support legs and middle support legs. The height of the end support legs is adjusted by a drive device, and the middle support legs are raised and lowered synchronously. The drive device is a stepper motor or an electric push rod.

5. A high-efficiency solar collector according to claim 1, characterized in that: A tilt sensor is provided on the back of the mounting bracket.

6. A high-efficiency solar collector according to claim 1, characterized in that: The heat collection tube is coated with a metal-ceramic absorption coating.

Images