Split assembly type groove type multi-curved-surface solar heat collector capable of rapidly defrosting

Abstract

The utility model relates to the technical field of solar heat collectors, in particular to a split assembly type groove type multi-curved-surface solar heat collector capable of defrosting quickly, which comprises a support frame, a heat collecting groove arranged on the support frame, a glass plate covering an opening of the heat collecting groove and a heat collecting pipe arranged in the heat collecting groove. The heat collecting groove is of a groove body structure with an opening in the front face, and the edge of the opening in the upper end of the heat collecting groove is provided with an outwards-bent outer flanging. The supporting frame comprises a bottom frame, a lap joint frame arranged on the bottom frame, a lap joint groove formed in the inner side of the upper end of the lap joint frame, a heat absorption frame arranged on the lap joint groove and a heat absorption strip arranged on the lap joint frame and located on the upper end face of the glass plate. The heat absorption frame covers the lap joint groove, and the lower end of the heat absorption frame is attached to the upper end of the outer flanging. According to the design, the melting speed of frost on the glass plate can be increased, and the influence of glass plate frosting on heat collection is greatly reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of solar heat collectors, in particular to a split assembly type trough type multi-curved surface solar heat collector with rapid defrosting. Background Art

[0002] Trough solar collectors are widely used in industrial hot water, drying, steam, seawater desalination, centralized heating and cooling, and other fields. Trough solar collectors focus sunlight on the focal line through a heat collecting trough with an arc-shaped focusing mirror, and a heat collecting tube is installed on the focal line. The heat collecting tube absorbs the focused solar radiation energy and heats the fluid in the tube, thereby achieving the purpose of heat collection and heating.

[0003] Trough collectors are generally composed of a heat collecting trough and a heat collecting tube. The heat collecting tube is easily damaged by oxidation, corrosion, impact, etc., so the heat collecting tube is generally installed in the heat collecting trough, and then the heat collecting trough is sealed with a glass plate. When the temperature difference between day and night is large, frost will form on the glass plate in the morning, and it needs to wait for the temperature to rise to a certain temperature before it melts, which seriously affects the heat collecting effect and efficiency of the collector. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a split assembly type trough type multi-curved surface solar collector with rapid defrosting, which accelerates the melting speed of frost on the glass plate and greatly reduces the influence of frost on the glass plate on heat collection.

[0005] The technical solution adopted by the utility model is to provide a split-assembly trough-type multi-curved solar collector with rapid defrosting, comprising a support frame, a heat collecting trough arranged on the support frame, a glass plate covering the opening of the heat collecting trough and a heat collecting tube arranged in the heat collecting trough, wherein the heat collecting trough is a trough structure with an opening on the front, and an outer flange bent outward is arranged on the edge of the opening at the upper end of the heat collecting trough, the support frame comprises a base frame, a lap frame arranged on the base frame, a lap groove arranged on the inner side of the upper end of the lap frame, a heat absorbing frame arranged on the lap groove, and a heat absorbing strip arranged on the lap frame and located on the upper surface of the glass plate, the outer flange of the heat collecting trough is overlapped in the lap groove of the lap frame, the heat absorbing frame covers the lap groove and the lower end is in contact with the upper end of the outer flange.

[0006] The heat collecting tank includes a middle tank with openings at both ends, side tanks arranged at both ends of the middle tank, first fastening seats respectively arranged on the back sides of both ends of the middle tank, and second fastening seats arranged on the back sides of the side tanks and corresponding to the first fastening seats. The side tanks are tank bodies with one end open, and the opening edges of the side tanks correspond to and fit with the opening edges at both ends of the middle tank. The second fastening seat is located on the back side of the opening edge on one side of the side tank, and the first fastening seat and the second fastening seat are fixed.

[0007] The edges of the openings at both ends of the middle groove are both provided with overlapping grooves, and the edges of the opening ends of the side grooves are provided with overlapping protrusions matched with the overlapping grooves.

[0008] The end of the first fastening seat is provided with an embedding groove, and the end of the second fastening seat is provided with an embedding protrusion corresponding to the embedding groove.

[0009] The embedding groove has a fan-shaped cross section.

[0010] Two first fastening seats are respectively arranged at both ends of the middle groove, and the first fastening seats are symmetrical with the center line of the middle groove. Two second fastening seats on the side groove are arranged corresponding to the first fastening seats.

[0011] There are two heat collecting tubes in the heat collecting tank.

[0012] The beneficial effect of the utility model is that it provides a split-assembly trough-type multi-curved solar collector with fast defrosting, and multiple trough-type collectors are installed through a support frame. Through the cooperation of the lap frame, the lap groove and the outer flange, they can be quickly positioned and installed. The heat absorption frame and the heat absorption strip can accelerate the melting speed of frost on the glass plate, greatly reducing the influence of frost on the glass plate on the heat collection effect of the collector. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of the utility model;

[0014] Figure 2 yes Figure 1 A magnified view of middle;

[0015] Figure 3 It is a structural schematic diagram of the middle slot of the utility model;

[0016] Figure 4 yes Figure 3 Enlarged view of middle B;

[0017] Figure 5 It is a structural schematic diagram of the side groove of the utility model.

[0018] In the attached drawings, 1, support frame, 2, heat collecting trough, 3, heat collecting tube, 4, outer flange, 5, base frame, 6, lap frame, 7, lap groove, 8, heat absorbing frame, 9, heat absorbing strip, 10, middle groove, 11, side groove, 12, first fastening seat, 13, second fastening seat, 14, lap groove, 15, lap convex edge, 16, embedded groove, 17, embedded protrusion. DETAILED DESCRIPTION

[0019] like Figure 1-5As shown, the utility model provides a split-assembly trough-type multi-curved solar collector with rapid defrosting, comprising a support frame 1, a heat collecting trough 2 arranged on the support frame 1, a glass plate covering the opening of the heat collecting trough 2 and a heat collecting tube 3 arranged in the heat collecting trough 2, wherein the heat collecting trough 2 is a trough structure with an opening on the front, and an outer flange 4 bent outward is arranged on the edge of the upper opening of the heat collecting trough 2, the support frame 1 comprises a base frame 5, a lap frame 6 arranged on the base frame 5, a lap groove 7 arranged on the inner side of the upper end of the lap frame 6, a heat absorbing frame 8 arranged on the lap groove 7, and a heat absorbing strip 9 arranged on the lap frame 6 and located on the upper surface of the glass plate, the outer flange 4 of the heat collecting trough 2 is overlapped in the lap groove 7 of the lap frame 6, the heat absorbing frame 8 covers the lap groove 7 and the lower end is in contact with the upper end of the outer flange 4.

[0020] The heat collecting tank 2 is a tank structure with an open front and closed at both ends. Figure 1 In the middle and upper end face, the heat collecting pipe 3 is installed in the heat collecting tank 2, and the front opening of the heat collecting tank 2 is closed by a glass plate to play a protective role. The opening edge refers to the end of the tank wall at the open end of the heat collecting tank 2. The outer flange 4 is formed by folding the open end of the heat collecting tank outward. The outer diameter of the outer flange 4 is larger than the outer diameter of the opening of the heat collecting tank 2. The angle between the outer flange 4 and the tank wall of the heat collecting tank 2 is 90°. The base frame 5 is a support frame fixed to the ground. The lap frame 6 is fixed on the upper end of the base frame 5 for installing the collector. The lap groove 7 is located on the inner side of the upper end of the lap frame 6. The heat collecting tank 2 is placed in the lap groove 7 through its outer flange 4 for limiting and supporting, and further The heat absorbing frame 8 and the heat absorbing strip 9 are made of black aluminum foil, which generates heat after absorbing sunlight, thereby increasing the melting speed of frost on the glass plate. The heat absorbing frame 8 and the heat absorbing strip 9 can be further coated with a heat absorbing layer to further increase the melting speed of frost on the glass plate. The design installs multiple trough-type collectors through the support frame 1, which can be quickly positioned and installed through the cooperation of the lap frame 6, the lap groove 7, and the outer flange 4. The heat absorbing frame 8 and the heat absorbing strip 9 can accelerate the melting speed of frost on the glass plate, thereby greatly reducing the influence of frost on the glass plate on the heat collection effect of the collector.

[0021] like Figure 3-5 As shown, the heat collecting tank 2 includes a middle tank 10 with openings at both ends, side tanks 11 arranged at both ends of the middle tank 10, a first fastening seat 12 respectively arranged on the back sides of both ends of the middle tank 10, and a second fastening seat 13 arranged on the back side of the side tank 11 and corresponding to the first fastening seat 12. The side tank 11 is a tank body structure with one end open, and the opening edge of the side tank 11 corresponds to and fits with the opening edges at both ends of the middle tank 10. The second fastening seat 13 is located on the back side of the opening edge on one side of the side tank 11, and the first fastening seat 12 and the second fastening seat 13 are fixed.

[0022] The middle groove 10 is a through groove structure with openings at both ends, and the side groove 11 is a groove body structure with an opening at the end opposite to the middle groove 10. The middle is the middle groove 10, and the two ends are the side grooves 11. After splicing, a complete heat collecting groove 2 is formed. According to the required length of the heat collecting groove 2, there can be multiple middle grooves 10, adjacent middle grooves 10 are spliced, and the starting end and the end are spliced ​​by the side grooves 11. The adjacent middle grooves 10 are fixed by the first fastening seat 12 and the first fastening seat 12, and the middle groove 10 and the side groove 11 are fixed by the first fastening seat 12 and the second fastening seat 13. The fixing method can be riveting or bolting. It is convenient and flexible to use, has a wide range of applications, and is easy to install.

[0023] like Figure 3-5 As shown, the edges of the openings at both ends of the middle groove 10 are provided with mounting grooves 14 , and the edges of the opening ends of the side grooves 11 are provided with mounting protrusions 15 that match the mounting grooves 14 .

[0024] When the middle groove 10 and the side groove 11 are spliced, they are positioned by the overlapping groove 14 and the overlapping convex edge 15. The edge of the open end of the side groove 11 refers to the end position of the groove wall of the open end of the side groove 11, and the middle grooves 10 are tightly pressed against each other.

[0025] like Figure 3-5 As shown, an embedding groove 16 is provided at the end of the first fastening seat 12 , and an embedding protrusion 17 corresponding to the embedding groove 16 is provided at the end of the second fastening seat 13 .

[0026] The embedding groove 16 and the embedding protrusion 17 cooperate to further position the device and share the force of the mounting groove 14 and the mounting protrusion 15.

[0027] like Figure 3-5 As shown, the embedding groove 16 has a fan-shaped cross section.

[0028] The embedding protrusion 17 is adapted to the embedding groove 16, and the fan-shaped structure enables the two to play a guiding role when they are stacked, making installation more convenient.

[0029] like Figure 3-5 As shown, two first fastening seats 12 are respectively provided at both ends of the middle groove 10 , and the first fastening seats 12 are symmetrical with the center line of the middle groove 10 . Two second fastening seats 13 on the side groove 11 are corresponding to the first fastening seats 12 .

[0030] The center line refers to the center line position of the bottom of the middle trough 10. The two symmetrical first fastening seats 12 and the second fastening seats 13 can improve the splicing strength and can be used as fulcrums when the heat collecting trough 2 is placed. The first fastening seats 12 and the second fastening seats 13 make the heat collecting trough 2 more stable after being placed on the ground.

[0031] like Figure 3-5 As shown, there are two heat collecting tubes 3 in the heat collecting tank 2.

[0032] The two heat collecting tubes 2 can improve the heat collecting efficiency. Two different media can be used according to the use requirements and can be used separately with two sets of conveying pipelines, which is more convenient to use and more comprehensive in function.

Claims

1. A split assembly type trough type multi-curved solar collector with rapid defrosting, comprising a support frame (1), a heat collecting trough (2) arranged on the support frame (1), a glass plate covering the opening of the heat collecting trough (2), and a heat collecting tube (3) arranged in the heat collecting trough (2), wherein the heat collecting trough (2) is a trough structure with a front opening, and is characterized in that: The upper opening edge of the heat collecting tank (2) is provided with an outwardly bent outer flange (4); the support frame (1) comprises a base frame (5), a lap frame (6) arranged on the base frame (5), a lap groove (7) arranged on the inner side of the upper end of the lap frame (6), a heat absorbing frame (8) arranged on the lap groove (7), and a heat absorbing strip (9) arranged on the lap frame (6) and located on the end surface of the glass plate; the outer flange (4) of the heat collecting tank (2) is overlapped in the lap groove (7) of the lap frame (6); the heat absorbing frame (8) covers the lap groove (7) and the lower end is in contact with the upper end of the outer flange (4).

2. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 1, characterized in that: The heat collecting tank (2) comprises a middle tank (10) with openings at both ends, side tanks (11) arranged at both ends of the middle tank (10), first fastening seats (12) respectively arranged on the back sides of both ends of the middle tank (10), and second fastening seats (13) arranged on the back sides of the side tank (11) and corresponding to the first fastening seats (12); the side tank (11) is a tank body structure with one end open, the opening edge of the side tank (11) corresponds to and fits with the opening edges at both ends of the middle tank (10); the second fastening seat (13) is located on the back side of the opening edge of one side of the side tank (11), and the first fastening seat (12) and the second fastening seat (13) are fixed.

3. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 2, characterized in that: The edges of the openings at both ends of the middle groove (10) are provided with mounting grooves (14), and the edges of the opening ends of the side grooves (11) are provided with mounting convex edges (15) adapted to the mounting grooves (14).

4. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 2, characterized in that: An embedding groove (16) is provided at the end of the first fastening seat (12), and an embedding protrusion (17) corresponding to the embedding groove (16) is provided at the end of the second fastening seat (13).

5. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 4, characterized in that: The embedding groove (16) has a fan-shaped cross section.

6. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 2, characterized in that: Two first fastening seats (12) are respectively provided at both ends of the middle groove (10), and the first fastening seats (12) are symmetrical with respect to the center line of the middle groove (10). Two second fastening seats (13) on the side groove (11) are provided corresponding to the first fastening seats (12).

7. The split assembly type trough type multi-curved surface solar collector with rapid defrosting according to claim 2, characterized in that: Two heat collecting tubes (3) are provided in the heat collecting tank (2).

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