Heating device of inner container of solar heat collecting pipe

Abstract

The utility model relates to the technical field of solar heat collecting tubes, in particular to a heating device of an inner container of a solar heat collecting tube, which comprises an outer glass tube and an inner glass tube, a sleeve is fixedly arranged on the outer wall of the bottom end of the outer glass tube, a group of connecting pieces are symmetrically arranged on the right side of the sleeve front and back, and an adjusting rod is rotatably arranged between the connecting pieces. The front end of the adjusting rod extends out of the connecting piece to be provided with a threaded piece, the threaded piece is in matched threaded connection with a fastening nut tightly attached to the outer wall of the connecting piece, an installation piece is fixedly arranged on the side, away from the sleeve, of the adjusting rod, and a light reflecting plate is arranged on the installation piece. Compared with the prior art, the utility model has the advantages that the casing pipe is fixedly arranged at the bottom end of the outer glass tube, the group of connecting pieces are arranged on the casing pipe, the adjusting rod is rotationally arranged between the connecting pieces, and the angle of the reflecting plate is adjusted through the adjusting rod, so that a large amount of solar rays can be reflected to the outer glass tube; and the heating effect of the equipment is improved to a certain extent.

Description

Technical Field

[0001] The utility model relates to the technical field of solar heat collecting tubes, in particular to a heat increasing device for an inner liner of a solar heat collecting tube. Background Art

[0002] The all-glass vacuum solar heat collecting tube is composed of an inner glass tube with a solar selective absorption coating and a coaxial cover glass tube. The inner and outer tubes are evacuated to a high vacuum. It is used to collect solar heat to heat the fluid medium in the tube. Several all-glass vacuum solar heat collecting tubes are arranged in a certain regular array and assembled with a header, tail frame and reflector to form a solar collector; together with the circulation pipeline, water storage tank and other components, a split solar water heating system is formed.

[0003] The working principle of the existing solar thermal collector tube is that solar energy is irradiated through the outer glass to the heat absorber on the outer surface of the inner tube and converted into heat energy, and then heats the heat transfer fluid in the inner glass tube. Since the interlayer is evacuated, the heat loss to the surrounding environment is effectively reduced, so that the heat collection efficiency is improved. The solar thermal collector tube can be used by fixing it at the required position. However, due to the different installation positions of the equipment and the different irradiation angles of the sun's rays, the amount of sunlight received at the inner tank of the solar thermal collector tube is limited. Therefore, a heat increasing device for the inner tank of the solar thermal collector tube is needed to increase the amount of sunlight received and enhance the heating efficiency. Utility Model Content

[0004] The technical problem to be solved by the utility model is that the intensity of light received by the equipment is affected due to different positions and times, and a heat increasing device for the inner tank of a solar heat collecting tube is provided.

[0005] In order to solve the above technical problems, the technical solution provided by the utility model is as follows: a heat increasing device for a solar thermal collector tube liner, comprising an outer glass tube and an inner glass tube, the inner glass tube being arranged inside the outer glass tube, a plurality of supporting members being connected between the inner glass tube and the outer glass tube, a vacuum interlayer being arranged between the inner glass tube and the outer glass tube, a condensing section being connected to the top end of the outer glass tube being connected to a condensing section being connected to the inner glass tube, a solar selective absorption coating being arranged on the inner wall of the inner glass tube, a heat pipe working medium being arranged at the inner bottom end of the inner glass tube, a getter being connected to the outer bottom end of the inner glass tube, an air-intake mirror being arranged at the bottom end of the outer glass tube, a sleeve being fixedly arranged on the outer wall of the bottom end of the outer glass tube, a group of connecting members being symmetrically arranged front and back on the right side of the sleeve, an adjusting rod being rotatably arranged between the connecting members, a threaded member being arranged on the front end of the adjusting rod extending to the outside of the connecting member, a fastening nut being threadedly connected to the outer wall of the connecting member being closely attached to the outer wall of the connecting member, a mounting member being fixedly arranged on the side of the adjusting rod away from the sleeve, and a reflector being arranged on the mounting member.

[0006] As an improvement, a rotating disk is connected to the rear end of the adjusting rod to facilitate the adjustment of the angle of the reflector by rotating the adjusting rod.

[0007] As an improvement, the mounting piece is provided with a mounting groove on the side away from the adjusting rod, the reflector is provided with a protrusion that fits into the mounting groove, and the mounting piece is provided with multiple mounting bolts connected to the protrusion, so as to facilitate the disassembly, cleaning or replacement of the reflector.

[0008] As an improvement, a hydraulic cylinder is provided on the top surface of the sleeve, and a movable cleaning ring close to the outer wall of the outer glass tube is threadedly connected to the output end of the hydraulic cylinder to achieve the cleaning operation of the outer glass tube and improve the light penetration effect.

[0009] As an improvement, a cleaning felt is attached to the inside of the movable cleaning ring. The provision of the cleaning felt can ensure the cleaning effect while avoiding scratches on the outer glass tube.

[0010] The advantage of the utility model over the prior art is that a sleeve is fixedly arranged at the bottom end of the outer glass tube, and then a group of connecting parts are arranged on the sleeve, and an adjusting rod is rotatably arranged between the connecting parts. The angle of the reflector is adjusted by the adjusting rod, so that a large amount of sunlight can be reflected onto the outer glass tube, thereby improving the heating effect of the equipment to a certain extent. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] Figure 1 It is the first stereoscopic diagram of a heat increasing device for a solar heat collecting tube liner of the utility model.

[0012] Figure 2 It is a second stereoscopic view of a heat increasing device for a solar heat collecting tube liner of the utility model.

[0013] Figure 3 The utility model is a cross-sectional stereoscopic diagram of a heat increasing device for a solar heat collecting tube liner.

[0014] Figure 4 yes Figure 1 Schematic diagram of the structure of part A.

[0015] As shown in the figure: 1. Outer glass tube; 2. Inner glass tube; 3. Support; 4. Vacuum interlayer; 5. Condensation section; 6. Solar selective absorption coating; 7. Heat pipe working fluid; 8. Getter; 9. Getter mirror; 10. Sleeve; 11. Connector; 12. Adjustment rod; 13. Threaded part; 14. Fastening nut; 15. Mounting part; 16. Reflector; 17. Rotating disk; 18. Mounting groove; 19. Bump; 20. Mounting bolt; 21. Hydraulic cylinder; 22. Moving cleaning ring; 23. Cleaning felt. DETAILED DESCRIPTION

[0016] The utility model is further described in detail below in conjunction with the accompanying drawings.

[0017] Embodiment 1

[0018] Combined with Figure 1 and 3 -4, a heat increasing device for the inner liner of a solar collector tube comprises an outer glass tube 1 and an inner glass tube 2, wherein the inner glass tube 2 is arranged inside the outer glass tube 1, a plurality of supporting members 3 are connected between the inner glass tube 2 and the outer glass tube 1, a vacuum interlayer 4 is arranged between the inner glass tube 2 and the outer glass tube 1, a condensation section 5 connected to the top end of the outer glass tube 1 is connected to the inner glass tube 2, a solar selective absorption coating 6 is arranged on the inner wall of the inner glass tube 2, a heat pipe working medium 7 is arranged on the inner bottom end of the inner glass tube 2, an air getter 8 is connected to the outer bottom end of the inner glass tube 2, an air getter mirror 9 is arranged on the bottom end of the outer glass tube 1, a sleeve 10 is fixedly arranged on the outer wall of the bottom end of the outer glass tube 1, and the sleeve 10 has a right side A group of connecting members 11 are symmetrically arranged front and back, an adjusting rod 12 is rotatably arranged between the connecting members 11, a threaded member 13 is arranged on the front end of the adjusting rod 12 to extend to the outside of the connecting member 11, a fastening nut 14 is threadedly connected with the threaded member 13 and is close to the outer wall of the connecting member 11, a mounting member 15 is fixedly arranged on the side of the adjusting rod 12 away from the sleeve 10, a mounting groove 18 is arranged on the side of the mounting member 15 away from the adjusting rod 12, a convex block 19 is arranged on the reflector 16 to fit in the mounting groove 18, a plurality of mounting bolts 20 connected with the convex block 19 are penetrated on the mounting member 15, a reflector 16 is arranged on the mounting member 15, and a rotating disk 17 is connected to the rear end of the adjusting rod 12;

[0019] Through the above structure, before installing the heat collecting tube, the sleeve 10 is fixed around the bottom end of the outer glass tube 1, and then the reflector 16 is clamped in the installation groove 18 through the protrusion 19, and the reflector 16 is fixed with the installation bolt 20; then the heat collecting tube is installed at the set position, and the adjusting rod 12 is rotated by rotating the disc 17 to rotate the reflector 16 to a certain tilt angle, so that the light is reflected on the outer glass tube 1, and then the fastening nut 14 is threadedly connected with the threaded member 13 until the fastening nut 14 is close to the outer wall of the connecting member 11. After the angle adjustment work is completed, the In the heat collection operation, direct sunlight and sunlight reflected by the reflector 16 are irradiated through the outer glass tube 1 to the solar selective absorption coating 6 of the inner glass tube 2 and converted into heat energy, and then the heat pipe medium 7 in the inner glass tube 2 is heated, and the vacuum interlayer 4 reduces the heat loss to the surrounding environment, and the spring clip support of the support 3 is free to expand and contract, buffering the stress caused by thermal expansion and contraction between the inner and outer glass tubes 1, and the degassing agent absorbs the gas generated during vacuum operation to maintain the vacuum degree in the tube, and the heat pipe medium 7 transfers the heat energy through the condensation section 5 to the heat exchanger through the convection and conduction of the heat pipe, so as to achieve the heating effect;

[0020] Embodiment 2

[0021] Based on the first embodiment, combined with the attached Figure 2 As shown, a hydraulic cylinder 21 is provided on the top surface of the sleeve 10, and a movable cleaning ring 22 close to the outer wall of the outer glass tube 1 is threadedly connected to the output end of the hydraulic cylinder 21, and a cleaning felt 23 is pasted inside the movable cleaning ring 22;

[0022] Through the above structure, the hydraulic cylinder 21 is opened regularly to make the movable cleaning ring 22 move up and down around the outer glass tube 1, and the cleaning felt 23 scrapes and removes impurities such as dust adhering to the outer wall of the outer glass tube 1, thereby improving the light penetration effect.

[0023] In the specific implementation of the utility model, before installing the heat collecting tube, firstly, the sleeve 10 is fixed around the bottom end of the outer glass tube 1, and then the reflector 16 is clamped in the installation groove 18 through the protrusion 19, and the reflector 16 is fixed by the installation bolt 20; then the heat collecting tube is installed at the set position, and the adjusting rod 12 is rotated by rotating the disc 17 to rotate the reflector 16 to a certain tilt angle, so that the light is reflected on the outer glass tube 1, and then the fastening nut 14 is threadedly connected with the threaded member 13 until the fastening nut 14 is close to the outer wall of the connecting member 11, and the angle adjustment work is completed;

[0024] The heat collection work starts, the direct sunlight and the sunlight reflected by the reflector 16 penetrate the outer glass tube 1 and irradiate the solar selective absorption coating 6 of the inner glass tube 2 to be converted into heat energy, and then heat the heat pipe medium 7 in the inner glass tube 2, the vacuum interlayer 4 reduces the heat loss to the surrounding environment, the spring card support of the support 3 is free to expand and contract, buffering the stress caused by thermal expansion and contraction between the inner and outer glass tubes 1, the degassing agent absorbs the gas generated during vacuum operation, maintains the vacuum degree in the tube, and the heat pipe medium 7 transfers the heat energy to the heat exchanger through the convection and conduction of the heat pipe to achieve the heating effect, and at the same time, the hydraulic cylinder 21 is regularly opened to make the movable cleaning ring 22 move up and down around the outer glass tube 1, and the cleaning felt 23 scrapes and removes the dust and other impurities adhering to the outer wall of the outer glass tube 1 to improve the light penetration effect.

[0025] The above description of the utility model and its implementation methods is not restrictive. The drawings show only one implementation method of the utility model, and the actual structure is not limited thereto. In short, if ordinary technicians in this field are inspired by it and design structural methods and embodiments similar to the technical solution without creativity without departing from the purpose of the invention of the utility model, they should all fall within the protection scope of the utility model.

Claims

1. A heat increasing device for a solar heat collecting tube liner, comprising an outer glass tube (1) and an inner glass tube (2), wherein the inner glass tube (2) is arranged inside the outer glass tube (1), a plurality of supporting members (3) are connected between the inner glass tube (2) and the outer glass tube (1), a vacuum interlayer (4) is provided between the inner glass tube (2) and the outer glass tube (1), a condensation section (5) connected to the inner glass tube (2) is connected to the top of the outer glass tube (1), a solar selective absorption coating (6) is provided on the inner wall of the inner glass tube (2), a heat pipe working medium (7) is provided at the inner bottom end of the inner glass tube (2), a getter (8) is connected to the outer bottom end of the inner glass tube (2), and a getter mirror (9) is provided at the bottom end of the outer glass tube (1), characterized in that: A sleeve (10) is fixedly provided on the outer wall of the bottom end of the outer glass tube (1), a group of connecting parts (11) are symmetrically provided on the right side of the sleeve (10) in front and back, an adjusting rod (12) is rotatably provided between the connecting parts (11), a threaded part (13) is provided at the front end of the adjusting rod (12) extending to the outside of the connecting part (11), a fastening nut (14) tightly attached to the outer wall of the connecting part (11) is matched and threadedly connected on the threaded part (13), a mounting part (15) is fixedly provided on the side of the adjusting rod (12) away from the sleeve (10), and a reflector (16) is provided on the mounting part (15).

2. The heat increasing device for the inner tank of a solar heat collecting tube according to claim 1, characterized in that: The rear end of the adjusting rod (12) is connected with a rotating disk (17).

3. The heat increasing device for the inner tank of a solar collector tube according to claim 1, characterized in that: A mounting groove (18) is provided on the side of the mounting member (15) away from the adjusting rod (12); a convex block (19) is provided on the reflector (16) and is fitted into the mounting groove (18); and a plurality of mounting bolts (20) connected to the convex blocks (19) are provided through the mounting member (15).

4. The heat increasing device for the inner tank of a solar heat collecting tube according to claim 1, characterized in that: The top surface of the sleeve (10) is provided with a hydraulic cylinder (21), and the output end of the hydraulic cylinder (21) is threadedly provided with a movable cleaning ring (22) close to the outer wall around the outer glass tube (1).

5. The heat increasing device for the inner tank of a solar heat collecting tube according to claim 4, characterized in that: A cleaning felt (23) is glued inside the movable cleaning ring (22).

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