Solar tube heat exchange device

Abstract

The utility model discloses a solar tube heat exchange device, which belongs to the technical field of solar tube heat exchange devices, and comprises symmetrically arranged heat insulation boxes and a plurality of solar vacuum tubes arranged between the two heat insulation boxes, and heat insulation tubes are embedded in the two heat insulation boxes. Rubber seats are fixedly embedded in the side walls of the heat preservation boxes, a supporting frame is detachably installed between the two heat preservation boxes through a fastening mechanism, a plurality of installation pipes extending into the rubber seats are fixed to the heat preservation pipes, threaded metal pipes connected with the installation pipes are embedded in the solar vacuum pipes, and the threaded metal pipes are connected with the installation pipes. A water inlet pipe and a water outlet pipe are fixed to the side walls of the two heat preservation pipes correspondingly, the two ends of the solar vacuum pipe are tightly inserted into the rubber bases, and the two ends of the threaded metal pipe are slidably sleeved with turncaps. And the safety of the solar vacuum tube is improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of solar tube heat exchange devices, and in particular relates to a solar tube heat exchange device. Background Art

[0002] The solar power generation tube is mainly composed of two parts: the heat absorption tube and the glass tube. The surface of the heat absorption tube has a high temperature selective absorption coating. The heat transfer medium flows in from one end of the heat absorption tube, and after being heated by solar radiation energy, it flows out from the other end of the heat absorption tube.

[0003] The glass tube and the heat absorbing tube in the prior art solution are affected by the sun and their temperatures rise. However, during the process of adding cold water, the cold water comes into contact with the high-temperature glass tube, which is very likely to cause the glass tube to burst, resulting in poor safety in the use of the solar glass tube. In addition, the brackets for fixing the solar tube heat exchange device are mostly fixed with bolts, which are prone to rust when used outdoors, making the solar tube heat exchange device difficult to disassemble and replace. Utility Model Content

[0004] (1) Technical issues to be resolved

[0005] In view of the deficiencies in the prior art, the purpose of the utility model is to provide a solar tube heat exchange device, which aims to solve the problem that in the process of adding cold water in the prior art, the cold water contacts the high-temperature glass tube and the glass tube is very likely to burst, resulting in poor safety in the use of the solar glass tube, and the brackets for fixing the solar tube heat exchange device are mostly fixed with bolts, which are prone to rust when used outdoors, resulting in the technical problem that the solar tube heat exchange device is difficult to disassemble and replace.

[0006] (2) Technical solution

[0007] In order to solve the above technical problems, the utility model provides a solar tube heat exchange device, which includes symmetrically arranged insulation boxes and a plurality of solar vacuum tubes installed between the two insulation boxes, the two insulation boxes are both embedded with insulation tubes, and the side walls of the insulation boxes are embedded with rubber seats fixed, wherein a support frame is detachably installed between the two insulation boxes through a fastening mechanism, a plurality of mounting tubes extending into the rubber seat are fixed on the insulation tubes, and a threaded metal tube connected to the mounting tube is embedded in the solar vacuum tube.

[0008] When using the technical solution, a threaded metal tube is embedded in the solar vacuum tube, and both ends of the threaded metal tube are fixed to the connecting tube by screw caps, and do not contact the solar vacuum tube after being fixed. After absorbing heat, the solar vacuum tube forms a heating cavity inside it, and heats the threaded metal tube and the circulating water therein. The surface of the metal tube thread increases its contact area with the air, and does not contact the solar vacuum tube when filling with cold water, thereby avoiding the high-temperature solar vacuum tube from bursting due to the influence of cold water, thereby improving the safety of the solar vacuum tube; a support frame is provided between the two insulation boxes, and the elastic plate in the expansion groove of the side wall of the support frame pushes the positioning block to be inserted into the positioning groove to keep the two insulation boxes fixed and keep multiple solar vacuum tubes stable. After the positioning block is squeezed from the outer wall of the insulation box and removed from the positioning groove, it is convenient to separate the insulation box from the support frame, and then the threaded metal tube and the solar vacuum tube are disassembled and replaced, thereby improving the convenience of disassembly and assembly of the solar vacuum tube.

[0009] Preferably, a water inlet pipe and a water outlet pipe are fixed to the side walls of the two insulation pipes respectively, and both ends of the solar vacuum tube are tightly inserted in the rubber seat.

[0010] Furthermore, both ends of the threaded metal tube are slidably sleeved with screw caps, and a retaining ring abutting against an inner wall of the screw cap is fixed to the outer wall of the threaded metal tube.

[0011] Furthermore, a threaded portion is provided at the top end of the mounting tube, the screw cap is threadably sleeved on the threaded portion, and a rubber pad for sealing is provided between the threaded portion and the threaded metal tube.

[0012] Furthermore, connecting grooves are symmetrically provided at both ends of the heat preservation box, and positioning grooves connected to the connecting grooves are provided on the side walls of the heat preservation box.

[0013] Furthermore, both ends of the support frame are U-shaped and inserted into the connection groove, and the side wall of the support frame is provided with a telescopic groove.

[0014] Furthermore, a positioning block which is inserted into the positioning groove is embedded in the telescopic groove, and an elastic plate connected to the positioning block is fixed to the inner wall of the telescopic groove.

[0015] (3) Beneficial effects

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The utility model embeds a threaded metal tube in the solar vacuum tube, and the two ends of the threaded metal tube are fixed to the connecting tube by screw caps, and do not contact the solar vacuum tube after being fixed. After absorbing heat, the solar vacuum tube forms a heating cavity inside it, and heats the threaded metal tube and the circulating water therein. The surface of the metal tube thread increases its contact area with the air, and does not contact the solar vacuum tube when adding cold water, thereby avoiding the high-temperature solar vacuum tube from being affected by cold water and bursting, thereby improving the safety of the solar vacuum tube.

[0018] By arranging a support frame between the two insulation boxes, the elastic plate in the expansion groove of the side wall of the support frame pushes the positioning block to be inserted into the positioning groove so that the two insulation boxes are kept fixed and multiple solar vacuum tubes are kept stable. After the positioning block is squeezed from the outer wall of the insulation box and moved out of the positioning groove, it is convenient to separate the insulation box from the support frame, and then the threaded metal tube and the solar vacuum tube can be disassembled and replaced, thereby improving the convenience of disassembly and assembly of the solar vacuum tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

[0020] Figure 1 It is a structural schematic diagram of the utility model;

[0021] Figure 2 This is a schematic diagram of the disassembled structure of the heat preservation box in the utility model;

[0022] Figure 3 For this utility model Figure 2 A magnified schematic diagram of the structure at center A;

[0023] Figure 4 For this utility model Figure 2 A magnified schematic diagram of the structure at B in the figure.

[0024] The markings in the attached drawings are: 1. Insulation box; 2. Solar vacuum tube; 3. Insulation tube; 4. Water outlet pipe; 5. Support frame; 6. Water inlet pipe; 7. Rubber seat; 8. Mounting tube; 9. Threaded metal tube; 10. Screw cap; 11. Threaded part; 12. Retaining ring; 13. Telescopic slot; 14. Elastic plate; 15. Positioning block; 16. Positioning slot; 17. Connecting slot. DETAILED DESCRIPTION

[0025] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0026] This specific embodiment is a solar tube heat exchange device, and its structural schematic diagram is as follows Figure 1 and Figure 2 As shown, the solar tube heat exchange device includes a symmetrically arranged insulation box 1 and a plurality of solar vacuum tubes 2 installed between the two insulation boxes 1, insulation tubes 3 are embedded in the two insulation boxes 1, and a rubber seat 7 is embedded and fixed in the side wall of the insulation box 1, wherein a support frame 5 is detachably installed between the two insulation boxes 1 through a fastening mechanism, a plurality of mounting tubes 8 extending into the rubber seat 7 are fixed on the insulation tube 3, a threaded metal tube 9 connected to the mounting tube 8 is embedded in the solar vacuum tube 2, both ends of the threaded metal tube 9 are fixed to the connecting tube by a screw cap 10, and do not contact the solar vacuum tube 2 after being fixed, the solar vacuum tube 2 forms a heating cavity inside the interior after absorbing heat, and heats the threaded metal tube 9 and the circulating water therein, the surface of the metal tube thread increases its contact area with the air, and does not contact the solar vacuum tube 2 when filling with cold water, thereby avoiding the high-temperature solar vacuum tube 2 from being affected by the cold water and bursting.

[0027] A water inlet pipe 6 and a water outlet pipe 4 are fixed to the side walls of the two insulation pipes 3, respectively. Both ends of the solar vacuum tube 2 are tightly inserted in the rubber seat 7. Both ends of the threaded metal tube 9 are slidably sleeved with screw caps 10, and the outer wall of the threaded metal tube 9 is fixed with a retaining ring 12 that abuts against the inner wall of the screw cap 10. A threaded portion 11 is provided at the top of the mounting tube 8. The screw cap 10 is threadedly sleeved on the threaded portion 11. A rubber pad for sealing is provided between the threaded portion 11 and the threaded metal tube 9. Folding portions are provided at both ends of the threaded metal tube 9, so that the two ends of the threaded metal tube 9 can be expanded and contracted when the two insulation boxes 1 are separated, thereby avoiding the problem that the fixed threaded water inlet pipe 6 makes the insulation box 1 unable to be disassembled.

[0028] like Figure 3 and Figure 4As shown, both ends of the insulated box 1 are symmetrically provided with connecting grooves 17, and the side wall of the insulated box 1 is provided with a positioning groove 16 connected with the connecting groove 17, both ends of the support frame 5 are U-shaped structures inserted in the connecting grooves 17, and the side wall of the support frame 5 is provided with a telescopic groove 13, and a positioning block 15 which is matched and inserted in the positioning groove 16 is embedded in the telescopic groove 13, and an elastic plate 14 connected to the positioning block 15 is fixed on the inner wall of the telescopic groove 13, and the elastic plate 14 in the telescopic groove 13 on the side wall of the support frame 5 pushes the positioning block 15 to be inserted into the positioning groove 16 to keep the two insulated boxes 1 fixed and keep the multiple solar vacuum tubes 2 stable. After the positioning block 15 is squeezed from the outer wall of the insulated box 1 and removed from the positioning groove 16, it is convenient to separate the insulated box 1 from the support frame 5, and then the threaded metal pipe 9 and the solar vacuum tube 2 can be disassembled and replaced.

[0029] The schematic diagram of the disassembled structure of the heat preservation box 1 of the solar tube heat exchange device is as follows: Figure 2 As shown, its Figure 2 The enlarged schematic diagram of the structure at A is shown in Figure 3 As shown, its Figure 2 The enlarged schematic diagram of the structure at B is shown in Figure 4 shown.

[0030] Working principle: When using the device of the present technical solution, the two ends of the threaded metal tube 9 are fixed to the connecting tube by the screw cap 10, and do not contact the solar vacuum tube 2 after being fixed. After absorbing heat, the solar vacuum tube 2 forms a heating cavity inside it, and heats the threaded metal tube 9 and the circulating water therein. The surface of the metal tube thread increases its contact area with the air. When filling with cold water, it does not contact the solar vacuum tube 2, thereby avoiding the high-temperature solar vacuum tube 2 from being affected by the cold water and bursting. During installation, the elastic plate 14 in the expansion groove 13 of the side wall of the support frame 5 pushes the positioning block 15 to be inserted into the positioning groove 16 to keep the two insulation boxes 1 fixed and keep multiple solar vacuum tubes 2 stable. During disassembly, the positioning block 15 is squeezed from the outer wall of the insulation box 1 and removed from the positioning groove 16, which facilitates the separation of the insulation box 1 from the support frame 5, and then the threaded metal tube 9 and the solar vacuum tube 2 are disassembled and replaced, thereby improving the convenience of disassembly and assembly of the solar vacuum tube 2.

[0031] All technical features in this embodiment can be freely combined according to actual needs.

[0032] Finally, it should be noted that the above is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Although the present utility model has been described in detail with reference to the aforementioned embodiments, it is still possible for those skilled in the art to modify the technical solutions described in the aforementioned embodiments, or to make equivalent substitutions for some of the technical features therein. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and principles of the present utility model shall be included in the protection scope of the present utility model.

Claims

1. A solar tube heat exchange device, comprising symmetrically arranged heat preservation boxes (1) and a plurality of solar vacuum tubes (2) installed between two heat preservation boxes (1), characterized in that: Both of the two insulation boxes (1) are embedded with an insulation pipe (3), and a rubber seat (7) is embedded and fixed in the side wall of the insulation box (1), wherein a support frame (5) is detachably mounted between the two insulation boxes (1) via a fastening mechanism, a plurality of mounting pipes (8) extending into the rubber seat (7) are fixed on the insulation pipe (3), and a threaded metal pipe (9) connected to the mounting pipe (8) is embedded in the solar vacuum tube (2).

2. A solar tube heat exchange device according to claim 1, characterized in that: A water inlet pipe (6) and a water outlet pipe (4) are respectively fixed to the side walls of the two thermal insulation pipes (3), and both ends of the solar vacuum tube (2) are tightly inserted into the rubber seat (7).

3. A solar tube heat exchange device according to claim 1, characterized in that: Both ends of the threaded metal tube (9) are slidably sleeved with screw caps (10), and a retaining ring (12) abutting against the inner wall of the screw cap (10) is fixed to the outer wall of the threaded metal tube (9).

4. A solar tube heat exchange device according to claim 3, characterized in that: The top end of the mounting tube (8) is provided with a threaded portion (11), the screw cap (10) is threadably sleeved on the threaded portion (11), and a rubber pad for sealing is provided between the threaded portion (11) and the threaded metal tube (9).

5. The solar tube heat exchange device according to claim 1, characterized in that: Both ends of the thermal insulation box (1) are symmetrically provided with connection grooves (17), and the side wall of the thermal insulation box (1) is provided with a positioning groove (16) which is connected to the connection groove (17).

6. A solar tube heat exchange device according to claim 5, characterized in that: Both ends of the support frame (5) are U-shaped structures inserted into the connection groove (17), and a telescopic groove (13) is provided on the side wall of the support frame (5).

7. A solar tube heat exchange device according to claim 6, characterized in that: A positioning block (15) which is inserted into the positioning groove (16) is embedded in the telescopic groove (13), and an elastic plate (14) connected to the positioning block (15) is fixed to the inner wall of the telescopic groove (13).

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