Light condensation and heat collection device

Abstract

The utility model relates to a light-gathering heat-collecting device, the light-gathering heat-collecting device comprises a fixed seat, a moving assembly, a reflector and a heat-collecting tube, a mounting cavity is arranged in the fixed seat, the reflector is arranged in the mounting cavity, the moving assembly is connected with the reflector and the fixed seat, and the moving assembly is connected with the heat-collecting tube. The moving assembly is used for driving the reflecting mirror to rotate in the circumferential direction of the mounting cavity, the reflecting mirror is provided with a light condensation position, and the heat collecting pipe is fixedly mounted in the mounting cavity and located at the light condensation position. The light condensing and heat collecting device can fix the heat collecting pipe and does not rotate along with rotation of the reflecting mirror, and the reliability of connection between the heat collecting pipe and an external heat collecting pipeline is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of heat collection equipment, in particular to a light-collecting and heat-collecting device. Background Art

[0002] Solar energy, as an environmentally friendly energy source, has been widely used. A large number of wind and photovoltaic power plants have been planned and constructed in Northwest my country. Because these plants lack peak-shaving capabilities, a number of concentrated solar thermal power plants have been planned and constructed across the country. Trough-type concentrating solar collectors, however, rotate their collector tubes as the reflectors rotate, making them susceptible to leakage at their flexible joints. Utility Model Content

[0003] The utility model aims to solve one of the technical problems in the related art at least to a certain extent.

[0004] To this end, an embodiment of the present invention proposes a concentrating heat collecting device, which can fix the heat collecting tube and does not rotate with the rotation of the reflector, which is beneficial to improving the reliability of the connection between the heat collecting tube and the external heat collecting pipeline.

[0005] The concentrating and heat-collecting device of an embodiment of the present utility model includes: a fixed base, a mounting cavity is provided in the fixed base; a movable component and a reflector, the reflector is installed in the mounting cavity, the movable component is connected to the reflector and the fixed base, the movable component is used to drive the reflector to rotate along the circumference of the mounting cavity, and the reflector has a focusing position; a heat collecting tube, the heat collecting tube is fixedly installed in the mounting cavity, and the heat collecting tube is located at the focusing position.

[0006] According to the embodiment of the concentrating heat collecting device of the present invention, since the heat collecting tube is fixedly installed in the installation cavity and is located at the focusing position, the movable assembly can drive the reflector to rotate so that the reflective surface of the reflector tracks the sunlight, thereby always aligning the focusing position of the reflector with the heat collecting tube, thereby improving the energy utilization rate of the concentrating heat collecting device. In addition, when the movable assembly drives the reflector to rotate, the reflector will not drive the heat collecting tube to move in conjunction, thereby avoiding the problem of pipeline leakage caused by the flexible connection or rotational connection between the heat collecting tube and the external heat collecting pipe, which is conducive to improving the reliability of the connection between the heat collecting pipe and the external heat collecting pipe.

[0007] In some embodiments, the inner wall of the installation cavity is a first arc surface, the reflecting surface of the reflector is a second arc surface, and the axis of the first arc surface, the axis of the second arc surface and the axis of the heat collecting tube are located on the same straight line.

[0008] In some embodiments, the moving component includes a walking track and a drive motor, the walking track is installed between the inner wall of the installation cavity and the reflector, and the walking track extends along the circumference of the installation cavity, the drive motor is connected to the walking track in a transmission manner, and the drive motor is used to drive the walking track to move so as to adjust the rotation angle of the reflector along the circumference of the installation cavity.

[0009] In some embodiments, the reflector includes a first lens and a second lens, the first lens and the second lens are spaced apart along the circumference of the installation cavity to form an avoidance zone, and the orthographic projection of the heat collecting tube on the reflector is located in the avoidance zone.

[0010] In some embodiments, a size of the avoidance zone along the circumference of the installation cavity is equal to an outer diameter of the heat collecting pipe.

[0011] In some embodiments, the rounded angle of the reflective surface of the reflector is α, 80°≤α≤100°.

[0012] In some embodiments, the fixing seat includes a first bracket and a second bracket, the first bracket is provided with the installation cavity, and the second bracket is connected to the heat collecting tube.

[0013] In some embodiments, the first bracket includes a plurality of support units, and the plurality of support units are arranged at intervals along the axial direction of the installation cavity. The second bracket includes at least two legs, and the two legs are arranged at intervals along the axial direction of the heat collecting tube. The upper ends of the legs are connected to the heat collecting tube, and the lower ends of the legs are connected to the first bracket or the ground.

[0014] In some embodiments, the heat collecting tube is an all-glass vacuum heat collecting tube, and the outer wall of the heat collecting tube is coated with a selective absorption coating.

[0015] In some embodiments, the reflector is coated with at least one of a silver layer, a copper layer, and a protective paint layer. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 This is a front view of the concentrating and heat collecting device according to an embodiment of the present utility model.

[0017] Figure 2 It is a side view of the concentrating and heat collecting device according to an embodiment of the present utility model.

[0018] Reference numerals:

[0019] 1. Fixing seat; 11. First bracket; 111. Mounting cavity; 112. Support unit; 12. Second bracket; 121. Support leg;

[0020] 2. Mobile assembly; 21. Travel track; 22. Drive motor;

[0021] 3. Reflector; 31. First lens; 32. Second lens; 33. Avoidance zone;

[0022] 4. Heat collecting tube. DETAILED DESCRIPTION

[0023] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0024] Please refer to the following Figure 1 and Figure 2 The present invention is described in detail with reference to a light-concentrating and heat-collecting device according to an embodiment of the present invention.

[0025] like Figure 1 and Figure 2 As shown, the concentrating and heat collecting device of the present invention comprises: a fixed base 1, a movable assembly 2, a reflector 3, and a heat collecting tube 4. The fixed base 1 has a mounting cavity 111, and the reflector 3 is mounted in the mounting cavity 111. The movable assembly 2 is connected to the reflector 3 and the fixed base 1, and is used to drive the reflector 3 to rotate along the circumference of the mounting cavity 111. The reflector 3 has a focusing position, and the heat collecting tube 4 is fixedly mounted in the mounting cavity 111 and is located in the focusing position.

[0026] According to the concentrating heat collecting device of the embodiment of the present invention, since the heat collecting tube 4 is fixedly installed in the installation cavity 111 and the heat collecting tube 4 is located at the focusing position, the movable assembly 2 can drive the reflector 3 to rotate so that the reflective surface of the reflector 3 tracks the sunlight, and then the focusing position of the reflector 3 is always aligned with the heat collecting tube 4, so as to improve the energy utilization rate of the concentrating heat collecting device. In addition, when the movable assembly 2 drives the reflector 3 to rotate, the reflector 3 will not drive the heat collecting tube 4 to move in conjunction, thereby avoiding the problem of pipeline leakage caused by the soft connection or rotation connection between the heat collecting tube 4 and the external heat collecting tube 4, which is conducive to improving the reliability of the connection between the heat collecting tube 4 and the external heat collecting tube 4.

[0027] It should be noted that a heat storage medium is provided in the heat collecting tube 4. The concentrating solar collector can use solar energy to heat the medium in the heat collecting tube 4. The heated medium can be used to generate electricity or provide heat. Solar energy is a clean energy source and does not produce pollutants such as carbon dioxide, nitrogen oxides, and sulfur dioxide during the process.

[0028] Optionally, the inner circumferential wall of the mounting cavity 111 is a first arcuate surface, and the reflective surface of the reflector 3 is a second arcuate surface. The axes of the first arcuate surface, the second arcuate surface, and the axis of the heat collecting tube 4 are co-aligned. Since the first and second arcuate surfaces are co-aligned, assembly of the reflector 3 and the mounting cavity 111 is facilitated, and the structure is compact, requiring less space. Furthermore, since the axis of the heat collecting tube 4 is co-linear with the axes of the first and second arcuate surfaces, the center of the heat collecting tube 4 can be aligned with the focal point of the reflector 3, thereby improving the heating efficiency and energy utilization of the heat collecting tube 4.

[0029] It is understandable that the moving component 2 can be a manual control structure or an electric control structure.

[0030] In the example of the present application, the moving assembly 2 adopts an electric control structure. Specifically, the moving assembly 2 includes a running track 21 and a drive motor 22. The running track 21 is installed between the inner peripheral wall of the installation cavity 111 and the reflector 3, and the running track 21 extends along the circumference of the installation cavity 111. The drive motor 22 is connected to the running track 21 and is used to drive the running track 21 to move to adjust the rotation angle of the reflector 3 along the circumference of the installation cavity 111, thereby improving the accuracy of the rotation control of the reflector 3.

[0031] For example, the drive motor 22 may be one or more. In the example of the present application, there are two drive motors 22, which are spaced apart and arranged on both sides of the travel track 21 to jointly control the rotation of the reflector 3, thereby improving the stability and reliability of the reflector 3 during rotation.

[0032] Optionally, the reflector 3 includes a first lens 31 and a second lens 32, and the first lens 31 and the second lens 32 are spaced apart along the circumference of the mounting cavity 111 to form a clearance zone 33. The orthographic projection of the heat collecting tube 4 on the reflector 3 is located in the clearance zone 33. It is understood that the reflector 3 is not installed at the location of the clearance zone 33. Since the location of the clearance zone 33 will be blocked by the heat collecting tube 4, that is, the shadow of the heat collecting tube 4 will be projected onto the location of the clearance zone 33. Therefore, the first lens 31 and the second lens 32 are spaced apart along the circumference of the mounting cavity 111 to form the clearance zone 33, which can improve the reflection efficiency of the reflector 3, reduce production costs, and facilitate assembly.

[0033] In one example, the size of the avoidance area 33 along the circumference of the installation cavity 111 is equal to the outer diameter of the heat collecting tube 4 , thereby further improving the reflection efficiency of the reflector 3 and reducing the production cost.

[0034] Optionally, the rounded angle α of the reflective surface of the reflector 3 is 80°≤α≤100°. For example, the rounded angle α of the reflective surface of the reflector 3 can be 80°, 90°, or 100°. The inventors of the present application have found through experimental research that when the rounded angle α of the reflective surface of the reflector 3 is within the above numerical range, the reflection efficiency of the reflector 3 can be improved.

[0035] In some embodiments, the fixing base 1 includes a first bracket 11 and a second bracket 12. The first bracket 11 is provided with a mounting cavity 111. The second bracket 12 is connected to the heat collecting tube 4 and fixed relative to the heat collecting tube 4. It is understood that the first bracket 11 and the second bracket 12 are independent of each other and can be assembled and processed separately. The structure and height of the second bracket 12 can be adjusted according to the actual environment to facilitate changing the position and height of the heat collecting tube 4.

[0036] Optionally, the first bracket 11 includes a plurality of support units 112, which are spaced apart along the axial direction of the mounting cavity 111. The second bracket 12 includes at least two legs 121, which are spaced apart along the axial direction of the heat collecting tube 4. The upper ends of the legs 121 are connected to the heat collecting tube 4, and the lower ends of the legs 121 are connected to the first bracket 11 or the ground. This can provide more stable support for the reflector 3 and the heat collecting tube 4, and facilitate assembly and processing.

[0037] For example, the heat collecting tube 4 is a full-glass vacuum heat collecting tube, and the outer wall of the heat collecting tube 4 is coated with a selective absorption coating, thereby minimizing the radiation heat loss of the pipe, ensuring that the heat collecting tube 4 absorbs as much solar energy as possible and improving the utilization rate of solar energy.

[0038] Furthermore, the reflector 3 is coated with at least one of a silver layer, a copper layer, and a protective lacquer layer. For example, the reflector 3 uses ultra-clear float glass as a substrate. After the original glass sheet is tempered and bent into shape, a high-reflectivity silver layer, a copper layer, a protective lacquer layer, and other functional coatings are coated on the convex surface to minimize light reflection loss.

[0039] It should be noted that there may be multiple concentrating and heat collecting devices in the embodiment of the present invention, and the multiple concentrating and heat collecting devices may be arranged in series or in parallel to meet the requirements of heating temperatures of different media.

[0040] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation to the present invention.

[0041] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of this utility model, "plurality" means at least two, such as two, three, etc., unless otherwise specifically defined.

[0042] In this utility model, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. For those skilled in the art, the specific meanings of the above terms in this utility model can be understood according to specific circumstances.

[0043] In the present invention, unless otherwise expressly specified or limited, when a first feature is "above" or "below" a second feature, it may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediary. Furthermore, when a first feature is "above," "above," or "above" a second feature, it may mean that the first feature is directly above or diagonally above the second feature, or simply means that the first feature is at a higher level than the second feature. When a first feature is "below," "below," or "below" a second feature, it may mean that the first feature is directly below or diagonally below the second feature, or simply means that the first feature is at a lower level than the second feature.

[0044] In the present invention, the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0045] Although the above embodiments have been shown and described, it is understood that the above embodiments are illustrative and cannot be understood as limitations on the present invention. Changes, modifications, substitutions and variations of the above embodiments made by ordinary technicians in this field are all within the scope of protection of the present invention.

Claims

1. A concentrating and heat collecting device, characterized in that: include: A fixing seat, wherein a mounting cavity is provided in the fixing seat; A moving assembly and a reflector, wherein the reflector is installed in the installation cavity, the moving assembly is connected to the reflector and the fixed seat, and the moving assembly is used to drive the reflector to rotate along the circumference of the installation cavity, and the reflector has a focusing position; A heat collecting tube is fixedly installed in the installation cavity and is located at the focusing position.

2. The concentrating and heat collecting device according to claim 1, characterized in that: The inner circumferential wall of the installation cavity is a first arc surface, the reflecting surface of the reflector is a second arc surface, and the axes of the first arc surface, the second arc surface and the heat collecting pipe are located on the same straight line.

3. The concentrating and heat collecting device according to claim 1, characterized in that: The moving assembly includes a walking track and a drive motor. The walking track is installed between the inner wall of the installation cavity and the reflector, and the walking track extends along the circumference of the installation cavity. The drive motor is transmission-connected to the walking track. The drive motor is used to drive the walking track to move so as to adjust the rotation angle of the reflector along the circumference of the installation cavity.

4. The concentrating and heat collecting device according to claim 1, characterized in that: The reflector includes a first lens and a second lens, the first lens and the second lens are spaced apart along the circumference of the installation cavity to form an avoidance area, and the orthographic projection of the heat collecting pipe on the reflector is located in the avoidance area.

5. The concentrating and heat collecting device according to claim 4, characterized in that: The size of the avoidance area along the circumference of the installation cavity is equal to the outer diameter of the heat collecting pipe.

6. The concentrating and heat collecting device according to claim 4, characterized in that: The rounded angle of the reflecting surface of the reflector is α, 80°≤α≤100°.

7. The concentrating and heat collecting device according to claim 4, characterized in that: The fixing seat includes a first bracket and a second bracket, the first bracket is provided with the installation cavity, and the second bracket is connected to the heat collecting tube.

8. The concentrating and heat collecting device according to claim 7, characterized in that: The first bracket includes a plurality of support units, and the plurality of support units are arranged at intervals along the axial direction of the installation cavity. The second bracket includes at least two legs, and the two legs are arranged at intervals along the axial direction of the heat collecting tube. The upper ends of the legs are connected to the heat collecting tube, and the lower ends of the legs are connected to the first bracket or the ground.

9. The concentrating and heat collecting device according to claim 1, characterized in that: The heat collecting tube is an all-glass vacuum heat collecting tube, and the outer wall of the heat collecting tube is coated with a selective absorption coating.

10. The concentrating and heat collecting device according to any one of claims 1 to 9, characterized in that: The reflector is plated with at least one of a silver layer, a copper layer and a protective paint layer.

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