Solar heat collection unit and solar energy utilization system using same

Abstract

The utility model discloses a solar heat collection unit. The solar heat collector comprises a solar heat absorbing plate (1), a heat collecting pipe (2) and a heat conducting structure (3), wherein the main body part of the heat collection pipe (2) is arranged on the backlight side of the solar heat absorption plate (1), the heat conduction structure (3) used for conducting heat is arranged between the solar heat absorption plate (1) and the heat collection pipe (2), and a heat conduction channel is formed between the solar heat absorption plate (1) and the heat collection pipe (2). According to the solar energy utilization system using the solar heat collection unit of the system, at least one solar heat absorption plate (1) and at least one heat collection pipe (2) are respectively provided with one unit; the length of the heat collecting pipe (2) is 20 to 100 m; the size of the solar heat absorbing plate (1) in the single linear direction is 15-20 m. The device is simple in structure, convenient to install and use, low in manufacturing, installation and maintenance cost, high in operability and excellent in comprehensive technical effect, and has predictable huge economic value and social value.

Description

Technical Field

[0001] This utility model relates to the field of structural component design and application technology of solar thermal collectors, specifically to a solar thermal collector unit and a solar energy utilization system using the collector unit. Background Technology

[0002] A solar thermal collector is a device that converts solar energy into thermal energy. Its working principle includes the following:

[0003] Flat plate solar collector: Solar radiation passes through a transparent cover plate, is absorbed by the heat absorption plate, is converted into heat energy and transferred to the working fluid in the pipe.

[0004] Vacuum tube solar collectors consist of multiple vacuum tubes, each containing an absorber plate and a heat transfer tube. Solar radiation is absorbed by the absorber plate, and the heat is transferred to the working fluid through the heat transfer tubes. The vacuum environment effectively reduces heat loss.

[0005] Concentrating solar collectors: such as composite parabolic (CPC) type solar collectors, are non-imaging, low-focusing concentrating solar collectors designed using the principle of edge rays, which can concentrate incident light onto the receiver after multiple reflections.

[0006] With the increasing global demand for clean energy, the solar collector market is showing a steady growth trend. Especially in regions rich in solar resources, such as China, the United States, and Europe, the market potential is enormous.

[0007] Existing solar thermal collectors are structurally complex in practical use, requiring constant operation and installation, and incurring high maintenance costs. Therefore, there is a desire for a solar thermal collector unit with superior technical performance and a solar energy utilization system using this unit. Summary of the Invention

[0008] The purpose of this utility model is to provide a solar thermal collector unit with excellent technical performance and a solar energy utilization system using the collector unit.

[0009] The key technology of this utility model is that it is a modular structure; a single unit can work, and multiple units can be assembled together to work in concert; the solar collector unit includes a solar absorber plate 1, a collector tube 2, and a heat conduction structure 3; wherein: the main body of the collector tube 2 is arranged on the back side of the solar absorber plate 1, and the heat conduction structure 3 for heat conduction is arranged between the solar absorber plate 1 and the collector tube 2 to form a heat conduction path between them.

[0010] The preferred technical content for which protection is sought in the solar thermal collector unit described in this utility model is:

[0011] In the solar collector unit, the heat-conducting structure 3 is arranged in close proximity to the heat collection tube 2, and a good heat conduction relationship is formed between the two; the heat-conducting structure 3 and the solar absorber plate 1 are fixedly connected together on the sun-facing side of the solar absorber plate 1.

[0012] In the solar thermal collector unit, a groove structure 1.1 is provided on the solar heat absorber plate 1, and the sheet-like partial structure in the heat conduction structure 3 extends from the groove structure 1.1 to the sun-facing side of the solar heat absorber plate 1.

[0013] In the solar collector unit, the heat-conducting structure 3 is divided into two parts that are fixedly connected to each other or are an integrated structure: one is the heat-conducting part 3.1 that surrounds or partially surrounds the heat-collecting tube 2; the other is the corner transition connection part 3.2; wherein: the corner transition connection part 3.2 connects the solar absorber plate 1 and the heat-conducting part 3.1 that surrounds the heat-collecting tube.

[0014] In the solar thermal collector unit, the included angle between the two parts of the corner transition connection 3.2 is 75° to 120°;

[0015] The heat collection tube surrounds or partially surrounds the heat conduction part 3.1, and the heat collection tube 2 is welded or bonded together.

[0016] The heat collection tube surrounds the heat-conducting part 3.1 and the corner transition connection part 3.2, and is fixedly connected as a whole by welding structure or connecting screws or rivets.

[0017] This utility model also claims protection for a solar energy utilization system using the aforementioned solar thermal collector unit, the key technology of which is:

[0018] In the solar energy utilization system, both the solar heat absorber 1 and the heat collector 2 are modular structures, and each of the solar heat absorber 1 and the heat collector 2 has at least one unit.

[0019] The length of a single heat collector tube 2 in the straight direction is 20cm to 100m;

[0020] The dimensions of a single solar absorber panel 1 in a single straight direction are 15cm to 20m.

[0021] The further preferred embodiment of the solar energy utilization system described in this utility model is:

[0022] In the solar energy utilization system, 2 to 20 heat collection tubes 2 are interconnected to form a heat collection section for supporting the same heat collection module. Each heat collection module is also equipped with at least one heat collection liquid medium storage tank 2.1, in which most of the liquid medium that can flow and store energy in the inner cavity of the heat collection tube 2 is concentrated and stored in the heat collection liquid medium storage tank 2.1.

[0023] In the solar energy utilization system, the solar heat absorber 1 has a quadrilateral modular structure, and each unit can be assembled into a larger whole; the side length of a single quadrilateral solar heat absorber 1 is 30cm to 3m.

[0024] This utility model relates to the design of a solar thermal collector unit and a solar energy utilization system; its structure is simple, easy to install and use, has low manufacturing, installation and maintenance costs, strong operability, and excellent comprehensive technical effects, and it has considerable economic and social value. Attached Figure Description

[0025] Figure 1 This is a simplified schematic diagram illustrating the structural principle of the solar thermal collector unit described in Example 1.

[0026] Figure 2 for Figure 1 AA section view;

[0027] Figure 3 This is a simplified schematic diagram illustrating the structural principle of the solar thermal collector unit described in Example 2 (viewpoint same). Figure 2 );

[0028] Figure 4 This is a simplified schematic diagram illustrating the overall structure and principle of a solar energy utilization system using the solar thermal collector unit described in Example 1 or 2. Detailed implementation method:

[0029] The invention is described in further detail through examples, but is not intended to limit the scope of the invention in any way.

[0030] Example 1

[0031] A type of solar thermal collector unit, see Figure 1 , Figure 2 It has a modular structure; a single unit can work, and multiple units can be assembled together to work in concert; the solar thermal collector unit includes a solar heat absorber plate 1, a heat collector tube 2, and a heat conduction structure 3; wherein: the main body of the heat collector tube 2 is arranged on the back side of the solar heat absorber plate 1, and the heat conduction structure 3 for heat conduction is arranged between the solar heat absorber plate 1 and the heat collector tube 2 to form a heat conduction path between them.

[0032] In the solar collector unit, the heat-conducting structure 3 is arranged in close proximity to the heat collection tube 2, and a good heat conduction relationship is formed between the two; the heat-conducting structure 3 and the solar absorber plate 1 are fixedly connected together on the sun-facing side of the solar absorber plate 1.

[0033] In the solar thermal collector unit, a groove structure 1.1 is provided on the solar heat absorber plate 1, and the sheet-like partial structure in the heat conduction structure 3 extends from the groove structure 1.1 to the sun-facing side of the solar heat absorber plate 1.

[0034] This embodiment relates to a solar thermal collector unit; it has a simple structure, is easy to install and use, has low manufacturing, installation and maintenance costs, is highly operable, and has excellent overall technical effects, and has considerable economic and social value for foreseeable.

[0035] Example 2

[0036] A type of solar thermal collector unit, see Figure 3 The key technology is that it is a modular structure; a single unit can work, and multiple units can be assembled together to work in concert; the solar thermal collector unit includes a solar absorber plate 1, a heat collection tube 2, and a heat conduction structure 3; wherein: the main body of the heat collection tube 2 is arranged on the back side of the solar absorber plate 1, and the heat conduction structure 3 for heat conduction is arranged between the solar absorber plate 1 and the heat collection tube 2 to form a heat conduction path between them.

[0037] In the solar collector unit, the heat-conducting structure 3 is arranged in close proximity to the heat collection tube 2, and a good heat conduction relationship is formed between the two; the heat-conducting structure 3 and the solar absorber plate 1 are fixedly connected together on the sun-facing side of the solar absorber plate 1.

[0038] In the solar thermal collector unit, a groove structure 1.1 is provided on the solar heat absorber plate 1, and the sheet-like partial structure in the heat conduction structure 3 extends from the groove structure 1.1 to the sun-facing side of the solar heat absorber plate 1.

[0039] In the solar collector unit, the heat-conducting structure 3 is divided into two parts that are fixedly connected to each other or are an integrated structure: one is the heat-conducting part 3.1 that surrounds or partially surrounds the heat-collecting tube 2; the other is the corner transition connection part 3.2; wherein: the corner transition connection part 3.2 connects the solar absorber plate 1 and the heat-conducting part 3.1 that surrounds the heat-collecting tube.

[0040] In the solar thermal collector unit, the included angle between the two parts of the corner transition connection 3.2 is 75° to 120°;

[0041] The heat collection tube surrounds or partially surrounds the heat conduction part 3.1, and the heat collection tube 2 is welded or bonded together.

[0042] The heat collection tube surrounds the heat conduction part 3.1 and the corner transition connection part 3.2 and is fixedly connected as one unit by welding structure or connecting screws or rivets.

[0043] This embodiment relates to the design of a solar thermal collector unit; its structure is simple, easy to install and use, with low manufacturing, installation and maintenance costs, strong operability, and excellent comprehensive technical effects, and it has considerable economic and social value for foreseeable.

[0044] Example 3

[0045] A solar energy utilization system using the solar thermal collector unit described in Embodiment 1 or Embodiment 2 (see...) Figure 4 Its key technology is:

[0046] In the solar energy utilization system, both the solar heat absorber 1 and the heat collector 2 are modular structures, and each of the solar heat absorber 1 and the heat collector 2 has at least one unit.

[0047] The length of a single heat collector tube 2 in the straight direction is 20cm to 100m;

[0048] The dimensions of a single solar absorber panel 1 in a single straight direction are 15cm to 20m.

[0049] In the solar energy utilization system, 2 to 20 heat collection tubes 2 are interconnected to form a heat collection section for supporting the same heat collection module. Each heat collection module is also equipped with at least one heat collection liquid medium storage tank 2.1, in which most of the liquid medium that can flow and store energy in the inner cavity of the heat collection tube 2 is concentrated and stored in the heat collection liquid medium storage tank 2.1.

[0050] In the solar energy utilization system, the solar heat absorber 1 has a quadrilateral modular structure, and each unit can be assembled into a larger whole; the side length of a single quadrilateral solar heat absorber 1 is 30cm to 3m.

[0051] This embodiment relates to the design of a solar energy utilization system; its structure is simple, easy to install and use, with low manufacturing, installation and maintenance costs, strong operability, and excellent comprehensive technical effects, and it has considerable economic and social value for foreseeable.

Claims

1. A solar thermal collector unit; characterized in that: It is a modular structure; the solar heat collection unit includes a solar heat absorption plate (1), a heat collection tube (2), and a heat conduction structure (3); wherein: the main body of the heat collection tube (2) is arranged on the back side of the solar heat absorption plate (1), and the heat conduction structure (3) for heat conduction is arranged between the solar heat absorption plate (1) and the heat collection tube (2) to form a heat conduction path between them.

2. The solar thermal collector unit according to claim 1, characterized in that: In the solar collector unit, the heat-conducting structure (3) is arranged close to the heat-collecting tube (2) in a localized manner, and the two form a heat conduction cooperation relationship; the heat-conducting structure (3) and the solar absorber plate (1) are fixedly connected together on the sun-facing side of the solar absorber plate (1).

3. The solar thermal collector unit according to claim 2, characterized in that: In the solar thermal collector unit, a groove structure (1.1) is provided on the solar heat absorber plate (1), and the sheet-like local structure in the heat conduction structure (3) extends from the groove structure (1.1) to the sun-facing side of the solar heat absorber plate (1).

4. The solar thermal collector unit according to claim 3, characterized in that: In the solar collector unit, the heat conduction structure (3) is divided into two parts that are fixedly connected to each other or are an integrated structure: one is the heat conduction part (3.1) that surrounds or partially surrounds the heat collection tube (2); the other is the corner transition connection part (3.2); wherein: the corner transition connection part (3.2) connects the solar absorber plate (1) and the heat conduction part (3.1) that surrounds the heat collection tube.

5. The solar thermal collector unit according to claim 3, characterized in that: In the solar thermal collector unit, the angle between the two parts of the corner transition connection (3.2) is 75° to 120°; The heat collection tube surrounds or partially surrounds the heat conduction part (3.1), and the heat collection tube (2) is welded or bonded together with the heat conduction part (3.1). The heat collection tube surrounds the heat conduction part (3.1) and the corner transition connection part (3.2) and is fixedly connected as one unit by welding structure or connecting screws or rivets.

6. A solar energy utilization system using the solar thermal collector unit of claim 1, characterized in that: In the solar energy utilization system, the solar heat absorber (1) and the heat collector (2) are both modular structures, and each of the solar heat absorber (1) and the heat collector (2) has at least one unit. The length of a single heat collector tube (2) in the straight direction is 20cm to 100m; The dimensions of a single solar absorber (1) in a single straight direction are 15cm to 20m.

7. The solar energy utilization system according to claim 6, characterized in that: In the solar energy utilization system, 2 to 20 heat collection tubes (2) are connected to each other to form a heat collection part for supporting the same heat collection module. At least one heat collection liquid medium storage tank (2.1) is also provided in a heat collection module.

8. The solar energy utilization system according to claim 6, characterized in that: In the solar energy utilization system, the solar heat absorber (1) is a quadrilateral modular structure, and each unit can be assembled into a larger whole; the side length of a single quadrilateral solar heat absorber (1) is 30cm to 3m.

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