Double-tube double-medium groove type multi-curved-surface solar heat collector

Abstract

The utility model relates to the technical field of solar heat collectors, in particular to a double-tube double-medium groove type multi-curved-surface solar heat collector which comprises a supporting frame, a heat collecting groove arranged on the supporting frame, two heat collecting tubes arranged in the heat collecting groove and a glass plate covering the heat collecting groove. The supporting frame comprises a bottom plate, a stand column arranged at the upper end of the bottom plate, a driving motor and a gear box which are arranged on the stand column, a cantilever connected with the gear box and a mounting frame arranged on the cantilever, the heat collecting groove is formed in the mounting frame, and the driving motor is in transmission connection with the input end of the gear box; one end of the cantilever is fixed to the output end of the gearbox, and the other end of the cantilever horizontally overhangs outwards. According to the design, the requirement of the solar heat collector for the installation environment is effectively lowered, installation is convenient, the angle of the solar heat collector can be adjusted at any time, and the application range is wider.

Description

Technical Field

[0001] The utility model relates to the technical field of solar heat collectors, in particular to a double-tube double-medium trough type multi-curved surface solar heat collector. 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] During installation, trough solar collectors are usually installed at high places to avoid being blocked. The installation environment is restricted by existing houses and terrain, and the angle cannot be adjusted after installation, making installation and use very inconvenient. Utility Model Content

[0004] In order to solve the above problems, the utility model provides a double-tube double-medium trough type multi-curved surface solar collector, which effectively reduces the requirements of the solar collector on the installation environment, is easy to install, can adjust the angle of the solar collector at any time, and has a wider range of applications.

[0005] The technical solution adopted by the utility model is to provide a double-tube double-medium trough type multi-curved surface solar collector, including a support frame, a heat collecting trough arranged on the support frame, a heat collecting tube arranged in the heat collecting trough and a glass plate covering the heat collecting trough, wherein two heat collecting tubes in the heat collecting trough are arranged in parallel, the support frame includes a base plate, a column arranged at the upper end of the base plate, a driving motor and a gear box arranged on the column, a cantilever connected to the gear box, and a mounting frame arranged on the cantilever, the heat collecting trough is arranged on the mounting frame, the driving motor is connected to the input end of the gear box in a transmission manner, one end of the cantilever is fixed to the output end of the gear box, and the other end is horizontally cantilevered outward.

[0006] The gearbox includes a box body fixed on a column, an output shaft and an input shaft rotatably arranged in the box body, and a transmission gear set arranged between the output shaft and the input shaft. One end of the input shaft extends outward through the box body and is transmission-connected to a driving motor. Both ends of the output shaft extend outward through the box body and are respectively fixed with cantilevers.

[0007] The mounting frame includes a support rod symmetrically arranged at the upper end of the cantilever, a reinforcing rod respectively fixed between the lower side of the cantilever and the lower side of the outer end of the support rod, the middle part of the support rod is fixed to the upper end surface of the cantilever, and the heat collecting tank is respectively arranged on both sides of the cantilever and located between the support rods.

[0008] The upper opening edge of the heat collecting tank is provided with an outwardly bent overlap edge, the overlap edges at both ends of the heat collecting tank are overlapped on the support rod and fixed, and the overlap edges on the adjacent side of the heat collecting tank and the cantilever are overlapped on the cantilever and fixed.

[0009] The heat collecting trough includes a first arc plate and a second arc plate which are parabolically and symmetrically arranged, a middle plate arranged between the first arc plate and the second arc plate, sealing plates respectively arranged at both ends of the first arc plate, the second arc plate and the middle plate, and mounting holes arranged on the sealing plates, the opposite sides of the first arc plate and the second arc plate are respectively connected to the two side ends of the middle plate, the cross-section of the middle plate is an inverted V-shape, and the heat collecting tube is inserted and installed in the mounting hole.

[0010] The heat collecting tubes include a first heat collecting tube and a second heat collecting tube. The first heat collecting tube corresponds to the middle plate up and down, and the second heat collecting tube is located above the first heat collecting tube and inclined at 45 degrees to one side of the first heat collecting tube.

[0011] The beneficial effect of the utility model is that it provides a double-tube double-medium trough-type multi-curved surface solar collector, the heat collecting trough body is a trough structure, the inner surface of the heat collecting trough is a focusing mirror, the opening of the heat collecting trough is closed with a glass plate, which plays a role of sealing and protection, and two heat collecting tubes are installed in the heat collecting trough to improve the heat collection and heat exchange effects. Different media can be used in the two heat collecting tubes to provide heat for different needs, which is more convenient to use and has better heat collection performance. The support frame adopts a base plate and a column, and the collector can be installed on a flat ground to ensure that the collector is at a high place to avoid obstruction. The cantilever can be driven to rotate by driving the gear box by a driving motor, that is, the direction of the collector, which is more flexible to use. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Figure 1 It is a structural schematic diagram of the utility model;

[0013] Figure 2 It is a structural schematic diagram of the support frame of the utility model;

[0014] Figure 3 It is a structural schematic diagram of the gear box of the utility model;

[0015] Figure 4 It is a structural schematic diagram of the heat collecting tank of the utility model.

[0016] In the attached drawings, 1, heat collecting trough, 2, heat collecting tube, 3, bottom plate, 4, column, 5, driving motor, 6, gear box, 7, cantilever, 8, box body, 9, output shaft, 10, input shaft, 11, support rod, 12, reinforcing rod, 13, first arc plate, 14, second arc plate, 15, middle plate, 16, sealing plate, 17, overlap, 21, first heat collecting tube, 22, second heat collecting tube. DETAILED DESCRIPTION

[0017] like Figure 1-4 As shown, the utility model provides a double-tube double-medium trough type multi-curved surface solar collector, including a support frame, a heat collecting trough 1 arranged on the support frame, a heat collecting tube 2 arranged in the heat collecting trough 1 and a glass plate covering the heat collecting trough 1, wherein two heat collecting tubes 2 in the heat collecting trough 1 are arranged in parallel, the support frame includes a base plate 3, a column 4 arranged at the upper end of the base plate 3, a driving motor 5 and a gear box 6 arranged on the column 4, a cantilever 7 connected to the gear box 6, and a mounting frame arranged on the cantilever 7, the heat collecting trough 1 is arranged on the mounting frame, the driving motor 5 is connected to the input end of the gear box 6 by transmission, one end of the cantilever 7 is fixed to the output end of the gear box 6, and the other end is horizontally cantilevered outward.

[0018] The heat collecting tank body is a tank body structure, and the inner surface of the heat collecting tank is a focusing mirror. The opening of the heat collecting tank 1 is closed with a glass plate to play a sealing and protective role. Two heat collecting tubes 2 are installed in the heat collecting tank 1 to improve the heat collection and heat exchange effects. Different media can be used in the two heat collecting tubes 2 to provide heat for different needs, which is more convenient to use and has better heat collection performance. The support frame adopts a base plate 3 and a column 4. The collector can be installed on a flat ground to ensure that the collector is at a high place to avoid obstruction. The gear box 6 can be driven by the drive motor 5 to drive the cantilever 7 to rotate, that is, the direction of the collector, which is more flexible to use.

[0019] like Figure 3 As shown, the gearbox 6 includes a box body 8 fixed on the column 4, an output shaft 9 and an input shaft 10 rotatably arranged in the box body 8, and a transmission gear set arranged between the output shaft 9 and the input shaft 10. One end of the input shaft 10 extends outward through the box body 8 and is transmission-connected to the drive motor 5. Both ends of the output shaft 9 extend outward through the box body 8 and are respectively fixed with cantilevers 7.

[0020] The cantilever 7 is symmetrically fixed on both ends of the output shaft 9 of the gear box 6 so that the support frame is evenly loaded. The cantilever 7 adopts a hollow tube to reduce the weight. The transmission gear set is used for the transmission of the input shaft 10 and the output shaft 9. Since the transmission gear set is a prior art, it will not be elaborated in detail.

[0021] like Figure 2 As shown, the mounting frame includes a support rod 11 symmetrically arranged at the upper end of the cantilever 7, a reinforcing rod 12 respectively fixed between the lower side of the cantilever 7 and the lower side of the outer end of the support rod 11, the middle part of the support rod 11 is fixed to the upper end surface of the cantilever 7, and the heat collecting tank 1 is respectively arranged on both sides of the cantilever 7 and located between the support rods 11.

[0022] The support rod 11 is placed as a whole and fixed on the upper end of the cantilever 7. The cantilever 7 is horizontally cantilevered. The upper end of the cantilever 7 refers to the upward end face of the cantilever 7. The reinforcing rod 12 is installed at the lower end of the support rod 11 and the lower end of the cantilever 7 at the corresponding position of the support rod 11 to improve the stability and strength of the overall structure. The heat collecting tank 1 is installed on both sides of the cantilever 7 to make the force more uniform and more stable.

[0023] like Figure 4 As shown, the upper opening edge of the heat collecting tank 1 is provided with an outwardly bent overlap 17, the overlaps 17 at both ends of the heat collecting tank 1 are overlapped on the support rod 11 and fixed, and the overlaps 17 on the side adjacent to the cantilever 7 of the heat collecting tank 1 are overlapped on the cantilever 7 and fixed.

[0024] The installation method of the heat collecting tank 1 is limited. The overlap 17 is a folded edge of the opening edge of the heat collecting tank 1 that is turned outward. The folded edge and the heat collecting tank 1 are an integrated structure, which can improve the strength of the heat collecting tank 1. During installation, the overlap 17 can be used for overlapping and positioning, which is convenient for fixing and makes the installation of the heat collecting tank 1 more convenient.

[0025] like Figure 4 As shown, the heat collecting tank 1 includes a first arc plate 13 and a second arc plate 14 which are parabolic and symmetrically arranged, a middle plate 15 arranged between the first arc plate 13 and the second arc plate 14, a sealing plate 16 respectively arranged at both ends of the first arc plate 13, the second arc plate 14 and the middle plate 15, and a mounting hole arranged on the sealing plate 16, the opposite sides of the first arc plate 13 and the second arc plate 14 are respectively connected to the two side ends of the middle plate 15, the cross-section of the middle plate 15 is an inverted V-shape, and the heat collecting tube 2 is inserted and installed in the mounting hole.

[0026] The first arc plate 13 and the second arc plate 14 are symmetrically arranged parabolic shapes, the middle plate 9 is a V-shaped heat collecting tube with both ends fixed on the sealing plate 16, the first arc plate 13, the second arc plate 14, the middle plate 15 and the sealing plate 16 are surrounded by an integrated trough structure with high strength, combining the imaging focusing parabola with the non-imaging focusing involute surface to achieve a wide receiving angle design; and using the "optical trap", the leaked light between the receiving tube and the reflecting surface is captured again to achieve efficient energy collection, high concentration ratio, high heat collection temperature, low heat dissipation, and effectively and significantly improve the heat collection performance.

[0027] like Figure 4 As shown, the heat collecting tube 2 includes a first heat collecting tube 21 and a second heat collecting tube 22. The first heat collecting tube 21 corresponds to the middle plate 15 up and down, and the second heat collecting tube 22 is located above the first heat collecting tube 21 and inclined 45° to one side of the first heat collecting tube 21.

[0028] Two heat collecting tubes 2 are installed, and the installation positions are limited to ensure the heat collecting effect.

Claims

1. A double-tube double-medium trough-type multi-curved surface solar collector, comprising a support frame, a heat collecting trough (1) arranged on the support frame, a heat collecting tube (2) arranged in the heat collecting trough (1), and a glass plate covering the heat collecting trough (1), characterized in that: Two heat collecting tubes (2) are arranged in parallel in the heat collecting tank (1); the support frame comprises a base plate (3), a column (4) arranged at the upper end of the base plate (3), a drive motor (5) and a gear box (6) arranged on the column (4), a cantilever (7) connected to the gear box (6), and a mounting frame arranged on the cantilever (7); the heat collecting tank (1) is arranged on the mounting frame, the drive motor (5) is connected to the input end of the gear box (6) in a transmission manner, one end of the cantilever (7) is fixed to the output end of the gear box (6), and the other end is horizontally cantilevered outward.

2. A double-tube double-medium trough-type multi-curved surface solar collector according to claim 1, characterized in that: The gear box (6) comprises a box body (8) fixed on the column (4), an output shaft (9) and an input shaft (10) rotatably arranged in the box body (8), and a transmission gear set arranged between the output shaft (9) and the input shaft (10); one end of the input shaft (10) passes through the box body (8) to extend outward and is transmission-connected to the drive motor (5); both ends of the output shaft (9) pass through the box body (8) to extend outward and are respectively fixed with cantilevers (7).

3. The double-tube double-medium trough-type multi-curved surface solar collector according to claim 1, characterized in that: The mounting frame comprises a support rod (11) symmetrically arranged at the upper end of the cantilever (7), and a reinforcing rod (12) respectively fixed between the lower side of the cantilever (7) and the lower side of the outer end of the support rod (11); the middle part of the support rod (11) is fixed to the upper end surface of the cantilever (7); and the heat collecting tank (1) is respectively arranged on both sides of the cantilever (7) and located between the support rods (11).

4. The double-tube double-medium trough-type multi-curved surface solar collector according to claim 3, characterized in that: The upper opening edge of the heat collecting tank (1) is provided with an outwardly bent overlap (17); the overlaps (17) at both ends of the heat collecting tank (1) are overlapped on the support rod (11) and fixed; the overlaps (17) on the side of the heat collecting tank (1) adjacent to the cantilever (7) are overlapped on the cantilever (7) and fixed.

5. The double-tube double-medium trough-type multi-curved surface solar collector according to claim 1, characterized in that: The heat collecting trough (1) comprises a first arc plate (13) and a second arc plate (14) which are parabolically shaped and symmetrically arranged, a middle plate (15) arranged between the first arc plate (13) and the second arc plate (14), sealing plates (16) respectively arranged at both ends of the first arc plate (13), the second arc plate (14) and the middle plate (15), and mounting holes arranged on the sealing plates (16); the opposite sides of the first arc plate (13) and the second arc plate (14) are respectively connected to the two side ends of the middle plate (15); the cross section of the middle plate (15) is inverted V-shaped; and the heat collecting tube (2) is inserted and installed in the mounting hole.

6. The double-tube double-medium trough-type multi-curved surface solar collector according to claim 5, characterized in that: The heat collecting tube (2) comprises a first heat collecting tube (21) and a second heat collecting tube (22); the first heat collecting tube (21) corresponds to the middle plate (15) up and down; the second heat collecting tube (22) is located above the first heat collecting tube (21) and is inclined at 45° to one side of the first heat collecting tube (21).

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