An easily adjustable assembled CPC collector device

Abstract

This patent discloses an easily adjustable assembled CPC collector device, including a CPC support ring, a fixed connecting rod, an adjustable supporting rod, a CPC reflector, a heat collecting tube, a heat collecting tube fixing rope, and a reflector fixing device; the CPC reflector slides and is fixed on the CPC support ring through the reflector fixing device, one end of the heat collecting tube fixing rope is fixedly connected to the end of the heat collecting tube, and the other end is fixedly connected to the reflector fixing device, the CPC support rings are connected by a fixed connecting rod, and the two ends of the fixed connecting rod located below the CPC support ring are respectively connected to the adjustable supporting rod, and the adjustable supporting rod is supported on the ground. The bracket used in the CPC collector device is suitable for fixing different types of CPC collectors, and is convenient for stepless and continuous adjustment of the position, height, collector orientation, CPC direction and shape of the CPC collector, so as to ensure the high solar energy utilization rate and environmental adaptability of the CPC collector. At the same time, the structure is simple, easy to assemble and disassemble, reusable, low cost, beautiful style, and has good promotion potential.

Description

Technical Field

[0001] The invention relates to a solar energy heat collecting device, in particular to an assembled CPC heat collecting device which is easy to adjust, belonging to the technical field of solar energy utilization. Background Art

[0002] As a clean, pollution-free renewable energy, the development and utilization of solar energy is considered an important part of the world's energy strategy. Solar water heaters have been successfully commercialized, and how to more effectively utilize solar energy has become a topic of research for scientists from all over the world.

[0003] Compound parabolic concentrator (CPC) is a non-imaging concentrator designed based on the principle of edge optics. In theory, the incident light within the receiving angle range will eventually reach the receiver directly or after reflection. For a given receiving angle range, it can achieve the maximum concentration ratio, so it is used in solar thermal and photovoltaic systems, non-tracking and tracking (secondary reflector) systems. CPC collectors have a smaller heat dissipation area, do not require tracking devices, and reduce costs, and can meet the needs of medium and high temperature heat collection.

[0004] At present, CPC solar medium and low temperature collectors have been promoted and applied to a certain extent. Compared with ordinary solar low temperature collectors, they can improve the collection temperature and collection efficiency within a certain range. However, the current CPC collectors are generally fixed, and the brackets used cannot adjust the angle, position, etc. of the collector. Since the altitude angle of the sun will change seasonally throughout the year, in order to improve the concentration ratio and utilization rate of solar energy, CPC collector brackets with multiple reserved holes have appeared on the market. 2~5 CPC collector inclination angles can be selected according to the season for fixing. Compared with fixed CPC collectors, the solar energy collection effect can be improved. However, this bracket has limited adjustability, only a few angles can be adjusted, and it is not universal. When the placement location changes, it is necessary to redesign and manufacture the bracket to improve the solar energy utilization rate of the CPC collector. At the same time, the shape of the CPC reflector, the position of the collector tube relative to the CPC, the position, orientation, height, direction of the collector, and the inclination of the CPC cannot be adjusted steplessly and continuously, and the applicability is limited, which affects and restricts the further promotion and application of CPC solar collectors and the efficient use of solar energy. Summary of the invention

[0005] The object of the present invention is to overcome the defects of the above-mentioned existing related CPC collector devices, and to provide a CPC collector device which is easy to assemble and disassemble, energy-saving and efficient, and can facilitate stepless and continuous adjustment of the position, height, collector orientation, CPC direction and shape of the CPC collector.

[0006] In order to solve the above technical problems, the technical solutions provided by this patent are as follows: an easily adjustable assembled CPC collector device is adopted, including a CPC support ring, a fixed connecting rod, an adjustable support rod, a CPC reflector, a heat collecting tube, a heat collecting tube fixing rope, and a reflector fixing device; the CPC support ring is an annular structure with an inner groove, the CPC support ring adopts a C-shaped steel cross-sectional structure, and a plurality of screw holes are arranged on the outer edge of the CPC support ring; the two ends of the CPC reflector are respectively fixedly connected to four reflector fixing devices, and the reflector fixing devices can slide and be fixed on the CPC support ring; the CPC reflector is a groove structure, and the heat collecting tube is located on the CPC reflector A plurality of reserved holes are provided at the end of the CPC reflector in the groove; a heat collecting tube fixing rope passes through the reserved holes of the CPC reflector, one end of the heat collecting tube fixing rope is fixedly connected to the end of the heat collecting tube, and the other end is fixedly connected to the reflector fixing device; both ends of the CPC reflector are respectively connected to the CPC support ring through the reflector fixing device, and the two CPC support rings are fixedly connected through a plurality of fixing connecting rods, and the fixing connecting rods are rod-shaped structures with threads at both ends, and the fixing connecting rods pass through the screw holes on the CPC support rings and are fastened by nuts; both ends of the two fixing connecting rods located below the CPC support rings are respectively connected to the adjustable support rods, and the adjustable support rods are supported on the ground.

[0007] As an improvement of the present invention, the reflector fixing device includes a 1# fixing rod, an adjusting ring, a 2# fixing rod, a 1# nut, a 2# nut, and a slot ring; the 1# fixing rod and the 2# fixing rod are provided with external threads, the adjusting ring is provided with internal threads, the 2# fixing rod is sequentially covered with a 1# nut, a 2# nut, and a slot ring from top to bottom, a rope hole is fixedly provided on the 1# nut, the rope hole is connected to the fixing rope of the heat collector, the 1# fixing rod and the 2# fixing rod are respectively connected to the adjusting ring through threads, and the slot ring is located at the lower end of the 2# fixing rod.

[0008] As an improvement of the present invention, the adjustable support rod includes a connecting rod connecting ring, an upper support rod, a middle support rod, a lower support rod and a universal wheel with brakes; the upper support rod and the lower support rod are internally threaded tubes, and are respectively connected to the middle support rod by threads, the middle of the middle support rod is a hexagonal rod, and the two ends of the middle support rod are externally threaded rods with opposite thread directions; the upper end of the upper support rod is fixedly connected to the connecting rod connecting ring, and the fixed connecting rod passes through the connecting rod connecting ring and is fastened by a nut; the lower end of the lower support rod is fixedly connected to the universal wheel with brakes.

[0009] As an improvement of the present invention, the number of the fixed connecting rods is 3 to 5.

[0010] As an improvement of the present invention, the CPC reflector plate adopts a curved surface structure with a composite parabola cross section and a receiving angle of 30 to 60 degrees.

[0011] As an improvement of the present invention, the heat collecting tube is a straight-through vacuum heat collecting tube or a heat pipe vacuum heat collecting tube.

[0012] Compared with the prior art, the advantages of the present invention are as follows: 1) The device can be applied to the installation of CPC reflectors of different sizes by adopting an adjustable length reflector fixing device and fixed connecting rods of different lengths; the reflector fixing device can adjust the length within a certain range by rotating the adjustment ring to meet the fixing and adjustment requirements of the CPC reflector. 2) The support structure of the device adopts the design of CPC support ring + fixed connecting rod, which is simple in structure and low in cost, and is convenient for angle adjustment and fixing of CPC collectors; it is also convenient for installation and disassembly, and can be combined and reused according to actual needs. 3) The device adopts the design of fixing the collector tube with ropes, which has the following advantages: 1. The position of the collector tube can be adjusted by adjusting the length of the rope, which is convenient to adjust, has a large adjustable range, and has high adjustment accuracy; 2. Compared with traditional brackets, it reduces heat loss and vibration conduction; 3. Compared with traditional brackets, it has less shading influence and low cost; 4. The design of the rope passing through the CPC reflector can strengthen the fixation of the CPC reflector and prevent the fixing rod from falling off. 4) The adjustable support rod design can quickly adjust the height of the support foot to adapt to the ground at different heights. At the same time, the CPC reflector and CPC support ring can be adjusted at an angle by adjusting the height of the support foot. The universal wheels with brakes can be used to easily move, change direction and fix the entire device. 5) The device has good adjustable performance and is suitable for fixing different types of CPC collectors. It is convenient for stepless and continuous adjustment of the position and height of the collector device, the direction, angle, size and shape of the CPC reflector, and the position of the collector tube, ensuring the high solar energy utilization rate and environmental adaptability of the CPC collector. At the same time, it has a simple structure, is easy to assemble and disassemble, can be reused, has low cost, and is beautiful in style, with good promotion potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a structural schematic diagram of an easily adjustable assembled CPC collector device;

[0014] Figure 2 1 is a schematic diagram of the structure of a reflector fixing device;

[0015] Figure 3 is a schematic diagram of the structure of an adjustable support rod;

[0016] Among them: 1 is CPC support ring, 2 is fixed connecting rod, 3 is adjustable supporting rod, 4 is CPC reflector, 5 is collector tube, 6 is collector tube fixing rope, 7 is reflector fixing device, 8 is 1# fixing rod, 9 is adjustment ring, 10 is 2# fixing rod, 11 is 1# nut, 12 is 2# nut, 13 is slot ring, 14 is rope hole, 15 is connecting rod connecting ring, 16 is upper supporting rod, 17 is middle supporting rod, 18 is lower supporting rod, 19 is universal wheel with brake. DETAILED DESCRIPTION

[0017] In order to enhance the understanding and recognition of the present invention, the present invention is further described and illustrated below in conjunction with the accompanying drawings and specific implementation methods.

[0018] Example 1: See Figure 1 , an easily adjustable assembled CPC collector device is adopted, including a CPC support ring 1, a fixed connecting rod 2, an adjustable supporting rod 3, a CPC reflector 4, a heat collecting tube 5, a heat collecting tube fixing rope 6, and a reflector fixing device 7; the CPC support ring 1 is a ring structure with an inner groove, the CPC support ring 1 adopts a C-shaped steel cross-section structure, and a plurality of screw holes are arranged on the outer edge of the CPC support ring 1; the two ends of the CPC reflector 4 are respectively fixedly connected to four reflector fixing devices 7, and the reflector fixing device 7 can slide and be fixed on the CPC support ring 1; the CPC reflector 4 is a groove structure, the heat collecting tube 5 is located in the groove of the CPC reflector 4, and the CPC reflector There are four reserved holes at both ends of the plate 4; the heat collecting pipe fixing rope 6 passes through the reserved holes of the CPC reflector, one end of the heat collecting pipe fixing rope 6 is fixedly connected to the end of the heat collecting pipe 5, and the other end is fixedly connected to the reflector fixing device 7; the two ends of the CPC reflector 4 are connected to the CPC support ring 1 through the reflector fixing device 7, and the two CPC support rings 1 are connected by three fixed connecting rods 2, and the fixed connecting rod 2 is a rod-shaped structure with threads at both ends. The fixed connecting rod 2 passes through the screw hole on the CPC support ring 1 and is fastened by a nut; the two ends of the two fixed connecting rods 2 located below the CPC support ring 1 are respectively connected to the adjustable support rod 3, and the adjustable support rod 3 is supported on the ground. The CPC reflector 4 adopts a curved surface structure with a composite parabola cross section, and the receiving angle is 45 degrees. The heat collecting pipe 5 is a straight-through vacuum heat collecting pipe.

[0019] Example 2: See Figure 2As an improvement of the present invention, the reflector fixing device 7 includes a 1# fixing rod 8, an adjusting ring 9, a 2# fixing rod 10, a 1# nut 11, a 2# nut 12, and a groove ring 13; the 1# fixing rod 8 and the 2# fixing rod 10 are provided with external threads, the adjusting ring 9 is provided with internal threads, the 2# fixing rod 10 is sequentially covered with the 1# nut 11, the 2# nut 12, and the groove ring 13 from top to bottom, the 1# nut 11 is fixed with a rope hole 14, the 1# fixing rod 8 and the 2# fixing rod 10 are respectively connected with the adjusting ring 9 by threads, and the groove ring 13 is located at the lower end of the 2# fixing rod 10.

[0020] Example 3: See Figure 3 As an improvement of the present invention, the adjustable support rod 3 includes a connecting rod connecting ring 15, an upper support rod 16, a middle support rod 17, a lower support rod 18 and a universal wheel 19 with a brake; the upper support rod 16 and the lower support rod 18 are internally threaded tubes, and are respectively connected to the middle support rod 17 by threads, the middle of the middle support rod 17 is a hexagonal rod, and the two ends of the middle support rod 17 are threaded rods with opposite thread directions; the upper end of the upper support rod 16 is fixedly connected to the connecting rod connecting ring 15, and the fixed connecting rod 2 passes through the connecting rod connecting ring 15 and is fastened by a nut; the lower end of the lower support rod 18 is fixedly connected to the universal wheel 19 with a brake, and the wheel of the universal wheel 19 with a brake can be rotated and braked.

[0021] Working principle and process: see Figure 1-Figure 3, according to the receiving angle of CPC collector, the longitude and latitude of the location, and the position angle of the sun in the season, calculate the best orientation of CPC reflector 4, and then install and adjust the angle. Connect two CPC support rings 1 through three fixed connecting rods 2, and pass the fixed connecting rods 2 through the screw holes of CPC support rings 1. After adjusting the spacing of CPC support rings 1 according to the length of CPC reflector 4 and heat collecting tube 5, tighten the connection between CPC support rings 1 and fixed connecting rods 2 with nuts. Fix the four vertices at the end of CPC reflector 4 to the 1# fixed rod 8 of reflector fixing device 7 respectively, and place the groove ring 13 of reflector fixing device 7 in the groove of CPC support ring 1. After adjusting CPC reflector 4 to the designed angle, tighten the 2# nut 12 to fasten reflector fixing device 7 to CPC support ring 1, and rotate the adjustment ring 9 to change the length of reflector fixing device 7 so as to adjust CPC reflector 4 to the designed curved surface shape. One end of the heat collector fixing rope 6 is fixed to the end of the heat collector 5. After the heat collector fixing rope 6 passes through the reserved hole of the CPC reflector 4, it is wound around the rope hole 14. After the heat collector 5 is adjusted to the optimal position, the heat collector fixing rope 6 is fastened to the rope hole 14. Fixing the heat collector 5 with the heat collector fixing rope 6 can facilitate the adjustment of the position of the heat collector 5, while reducing the heat loss caused by heat conduction and the vibration conduction of the metal bracket. The two ends of the two fixed connecting rods 2 below are respectively inserted into the connecting rod connecting ring 15 of the adjustable support rod 3, and the nuts are tightened to fix. According to the inclination requirements of the CPC collector and the ground conditions, the height of the adjustable support rod 3 is adjusted - the rotation of the support rod 17 can change the spacing between the upper support rod 16 and the lower support rod 18. After the CPC collector device is moved to the optimal position using the braked universal wheel 19, the braked universal wheel 19 is braked to fix the CPC collector.

[0022] The present invention may also combine at least one of the technical features described in Examples 2 and 3 with Example 1 to form a new implementation manner.

[0023] It should be noted that the above embodiments are merely preferred embodiments of the present invention and are not intended to limit the protection scope of the present invention. The protection scope of the present invention shall be subject to the claims.

Claims

1. An easily adjustable assembled CPC collector device, characterized in that The described easy-to-adjust assembled CPC collector device comprises a CPC support ring, a fixed connecting rod, an adjustable supporting rod, a CPC reflector, a heat collecting tube, a heat collecting tube fixing rope, and a reflector fixing device; the CPC support ring is an annular structure with an inner groove, the CPC support ring adopts a C-shaped steel cross-section structure, and a plurality of screw holes are arranged on the outer edge of the CPC support ring; the two ends of the CPC reflector are respectively fixedly connected to four reflector fixing devices, and the reflector fixing devices can slide and be fixed on the CPC support ring; the CPC reflector is a groove structure, the heat collecting tube is located in the groove of the CPC reflector, and the CPC reflector is fixed to the CPC reflector. A plurality of reserved holes are provided at the end; the heat collecting tube fixing rope passes through the reserved holes of the CPC reflector, one end of the heat collecting tube fixing rope is fixedly connected to the end of the heat collecting tube, and the other end is fixedly connected to the reflector fixing device; the two ends of the CPC reflector are respectively connected to the CPC support ring through the reflector fixing device, and the two CPC support rings are fixedly connected through a plurality of fixed connecting rods, and the fixed connecting rods are rod-shaped structures with threads at both ends, and the fixed connecting rods pass through the screw holes on the CPC support rings and are fastened by nuts; the two ends of the two fixed connecting rods located below the CPC support rings are respectively connected to the adjustable support rods, and the adjustable support rods are supported on the ground; The reflector fixing device comprises a 1# fixing rod, an adjusting ring, a 2# fixing rod, a 1# nut, a 2# nut, and a slot ring; the 1# fixing rod and the 2# fixing rod are provided with external threads, the adjusting ring is provided with internal threads, the 2# fixing rod is sequentially sleeved with the 1# nut, the 2# nut, and the slot ring from top to bottom, the 1# nut is fixed with a rope hole, the rope hole is connected with the fixing rope of the heat collecting tube, the 1# fixing rod and the 2# fixing rod are respectively connected with the adjusting ring through threads, and the slot ring is located at the lower end of the 2# fixing rod; The adjustable support rod comprises a connecting rod connecting ring, an upper support rod, a middle support rod, a lower support rod and a universal wheel with brakes; the upper support rod and the lower support rod are internally threaded tubes, and are respectively connected to the middle support rod by threads, the middle of the middle support rod is a hexagonal rod, and the two ends of the middle support rod are externally threaded rods with opposite thread directions; the upper end of the upper support rod is fixedly connected to the connecting rod connecting ring, and the fixed connecting rod passes through the connecting rod connecting ring and is fastened by a nut; the lower end of the lower support rod is fixedly connected to the universal wheel with brakes.

2. The easily adjustable assembled CPC collector device according to claim 1, characterized in that The number of the fixed connecting rods is 3 to 5.

3. The easily adjustable assembled CPC collector device according to claim 1, characterized in that The CPC reflective plate adopts a curved surface structure with a composite parabola cross section, and the receiving angle is 30 degrees to 60 degrees.

4. The easily adjustable assembled CPC collector device according to claim 1, characterized in that The heat collecting tube is a straight-through vacuum heat collecting tube or a heat pipe vacuum heat collecting tube.

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