A multi-dimensional combined adjustable CPC heat collection device

Abstract

This patent discloses a multi-dimensional combined adjustable CPC heat collecting device, including a straight-through all-glass vacuum heat collecting tube with a jack, a curved heat pipe vacuum heat collecting tube, a primary semi-compound parabolic concentrator, a secondary curved double-dimensional compound parabolic concentrator, and a two-stage adjustable angle support frame device, wherein the lower end of the curved heat pipe vacuum heat collecting tube is inserted into the straight-through all-glass vacuum heat collecting tube with a jack. The CPC collector device adopts a combination of longitudinal and transverse focusing, two-time and one-time focusing, curved heat pipe and straight-through vacuum heat collecting tubes, collector orientation adjustment and reflector angle adjustment, etc., so as to achieve a higher heat collection temperature by increasing the concentration ratio as much as possible while ensuring the sunlight receiving angle, reduce optical loss and the number of reflector angle adjustments, and improve the comprehensive heat collection efficiency of the solar collector. At the same time, it has high adjustability, a wide range of applications, is easy to assemble and disassemble, and has low cost.

Description

Technical Field

[0001] The invention relates to a solar energy heat collecting device, in particular to a multi-dimensional, multi-stage, adjustable CPC heat collector device, 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 the smallest 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, due to the limitation of optical characteristics, the current CPC collectors have a low concentration ratio and cannot achieve a high collection temperature or the solar collection efficiency is very low when operating at a high collection temperature. If a higher concentration ratio is designed, the solar light receiving angle of the collector will be very small, and tracking or frequent adjustment is required to ensure the reception of sunlight, which loses the value and significance of the CPC collector and requires a larger reflector. The above situation has resulted in CPC collectors having no obvious advantages in performance and cost compared to non-concentrators, limiting the promotion, application and popularization of CPC collectors. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects of the above-mentioned existing related CPC solar collectors, and to provide a multi-dimensional CPC solar collector that combines double concentration with single concentration and has an adjustable reflector. While ensuring the angle range of receiving sunlight, the concentration ratio is increased as much as possible to achieve a higher collection temperature, reduce optical losses and the number of times the reflector angle is adjusted, and the comprehensive collection efficiency of the solar collector is improved. At the same time, it has high adjustability, a wide range of applications, is easy to assemble and disassemble, and has low cost.

[0006] In order to solve the above technical problems, the technical solution provided by this patent is as follows: a multi-dimensional combined adjustable CPC collector device is adopted, including a straight-through all-glass vacuum collector tube with a jack, a curved heat pipe vacuum collector tube, a primary semi-compound parabolic concentrator, a secondary curved two-dimensional compound parabolic concentrator, and a two-stage adjustable angle support frame device; the straight-through all-glass vacuum collector tube with a jack is placed horizontally, and multiple curved heat pipe vacuum collector tubes are placed side by side, and the lower end of the curved heat pipe vacuum collector tube is inserted into the straight-through all-glass vacuum collector tube with a jack, and the axis of the curved heat pipe vacuum collector tube is bent upward; a secondary curved two-dimensional compound parabolic concentrator is provided under each curved heat pipe vacuum collector tube, and a secondary curved two-dimensional compound parabolic concentrator is provided under the curved heat pipe vacuum collector tube. On the radial section of the tubular vacuum collector, the secondary curved two-dimensional compound parabolic concentrator is a compound parabolic surface with the curved heat pipe vacuum collector as the receiving tube, and on the axial vertical section of the curved heat pipe vacuum collector, the secondary curved two-dimensional compound parabolic concentrator is parallel to the axial curve of the curved heat pipe vacuum collector; the primary semi-compound parabolic concentrator and the secondary curved two-dimensional compound parabolic concentrator are fixed on a two-stage adjustable angle support frame device, and the primary semi-compound parabolic concentrator is a half-side compound parabolic surface with a straight-through all-glass vacuum collector with a jack as the receiving tube; the straight-through all-glass vacuum collector with a jack and the curved heat pipe vacuum collector are fixed on a two-stage adjustable angle support frame device.

[0007] As an improvement of the present invention, the curved heat pipe type vacuum collector tube comprises an outer glass tube, an inner glass tube, a full glass vacuum collector tube vacuum layer, a glass jack, and a rubber ring; the outer glass tube is located outside the inner glass tube, and the full glass vacuum collector tube vacuum layer is between the outer glass tube and the inner glass tube; the ends of the outer glass tube and the inner glass tube are connected by a fusion seal, the outside of the outer glass tube is connected to the inside of the inner glass tube through the glass jack, a rubber ring is embedded in the glass jack, and the outer surface of the inner glass tube is covered with a selective absorption coating.

[0008] As an improvement of the present invention, the curved heat pipe vacuum collector tube includes a curved glass tube, a heat pipe evaporation section, a heat pipe vacuum collector tube vacuum layer, a heat pipe end cover, and a heat pipe condensation section; the axis of the curved glass tube is parallel to the axis of the heat pipe evaporation section and is a section of a compound parabolic curve, the curved glass tube is a single-layer glass sleeve, one end of the curved glass tube is closed, and the other end is connected to the heat pipe end cover to form a sealed space, the heat pipe evaporation section and the heat pipe condensation section are respectively located inside and outside the sealed space, the heat pipe evaporation section and the heat pipe condensation section are interconnected tubular structures, the heat pipe vacuum collector tube vacuum layer is between the curved glass tube and the heat pipe evaporation section, and the outer surface of the heat pipe evaporation section is covered with a selective absorption coating.

[0009] As an improvement of the present invention, the two-stage adjustable angle support frame device includes a primary concentrator curved support rod, a secondary concentrator curved support rod, a primary concentrator support cross frame, a secondary concentrator support cross frame, a full-glass vacuum collector tube end fixing bracket, a heat pipe vacuum collector tube fixing bracket, a secondary curved two-dimensional composite parabolic concentrator panel bracket, an adjustable bracket, a main support shaft, a shaft connecting rod, a secondary support shaft, a main shaft end device, a secondary shaft end device, and an inclined support frame; the main support shaft and the secondary support shaft are rotatable rod-shaped structures, the end of the main support shaft is connected to the main shaft end device, and the end of the secondary support shaft is connected to the secondary shaft end device; the main shaft end device is fixed on the inclined support frame, the inclined support frame is placed on the ground, and the main support shaft is fixedly connected to the secondary concentrator curved support rod, the shaft connecting rod, the full-glass vacuum collector tube An empty collector tube end fixing bracket, the other end of the shaft connecting rod is fixedly connected to the secondary shaft end device, and the secondary support shaft is fixedly connected to the primary concentrator plate curved support rod; a plurality of secondary concentrator plate supporting cross frames are arranged on the secondary concentrator plate curved support rod, a plurality of heat pipe type vacuum collector tube fixing brackets are fixedly connected to the uppermost and lowermost secondary concentrator plate supporting cross frames, and a plurality of secondary curved double-dimensional compound parabolic concentrator plate brackets are fixedly connected to the remaining secondary concentrator plate supporting cross frames; a plurality of primary concentrator plate supporting cross frames are arranged on the primary concentrator plate curved support rod, and the adjustable bracket comprises an upper internal threaded tube, a positive and negative threaded rod, and a lower internal threaded rod, the positive and negative threaded rod is connected to the upper internal threaded tube and the lower internal threaded rod by threads, the lower part of the lower internal threaded tube is fixed on the primary concentrator plate supporting cross frame, and the upper part of the upper internal threaded tube of the adjustable bracket is connected and fixed to the primary semi-compound parabolic concentrator.

[0010] As an improvement of the present invention, the axis of the curved heat pipe vacuum collector tube is a section of a compound parabolic curve.

[0011] As an improvement of the present invention, the secondary curved two-dimensional compound parabolic concentrator bracket and the adjustable bracket are provided with magnetic blocks, and the primary semi-compound parabolic concentrator and the secondary curved two-dimensional compound parabolic concentrator are provided with iron bars.

[0012] As an improvement of the present invention, the number of the secondary concentrator panel supporting cross frames and the primary concentrator panel supporting cross frames is 4 to 8, the number of the heat pipe type vacuum collector tube fixed brackets and the secondary curved two-dimensional composite parabolic concentrator panel brackets on each secondary concentrator panel supporting cross frame is 2 to 10, and the number of the adjustable brackets on each primary concentrator panel supporting cross frame is 2 to 10.

[0013] Compared with the prior art, the advantages of the present invention are as follows:

[0014] 1) Part of the sunlight irradiated on the primary semi-compound parabolic concentrator is reflected on the straight-through all-glass vacuum collector tube with a socket, and part of it is reflected on the secondary curved double-dimensional compound parabolic concentrator and the curved heat pipe vacuum collector tube; part of the sunlight irradiated on the secondary curved double-dimensional compound parabolic concentrator is reflected on the curved heat pipe vacuum collector tube, and part of it is reflected on the straight-through all-glass vacuum collector tube with a socket; another part of the sunlight is directly irradiated on the straight-through all-glass vacuum collector tube with a socket and the curved heat pipe vacuum collector tube; the solar energy received on the curved heat pipe vacuum collector tube is transmitted to the straight-through all-glass vacuum collector tube with a socket through the heat pipe, so that the solar energy irradiated on the device is finally collected in the straight-through all-glass vacuum collector tube.

[0015] 2) The two-dimensional quadratic compound parabolic concentrator design can improve the concentration ratio, increase the temperature of the heat collecting medium and the efficiency of the heat collecting system. Compared with the tracking concentrator, it does not require a tracking control system, reducing the system construction cost and operating cost. At the same time, it has high stability and long service life. Compared with the high concentration ratio single compound parabolic concentrator, it can increase the sunlight receiving angle range (CPC receiving angle) and reduce the requirements for the position, angle, shape accuracy of the concentrator and optical loss.

[0016] 3) The device adopts a vacuum tube design, which can reduce system heat loss and improve heat collection efficiency; the secondary collector tube adopts a curved heat pipe device, which can improve the heat transfer speed and efficiency with the primary collector tube, and is easy to install and disassemble.

[0017] 4) The dual-stage rotation structure design of the main support shaft and the secondary support shaft is convenient for adjusting the receiving angle of the device to adapt to the angle of sunlight at different times and positions. At the same time, through the secondary adjustment of the primary semi-compound parabolic concentrator, the primary semi-compound parabolic concentrator with different concentration ratios and sizes can be replaced to suit systems with different concentration requirements. The concentrator support frame with magnetic blocks is convenient for the installation, disassembly, position and angle adjustment of the concentrator.

[0018] 5) Through the effective combination of multi-dimensional CPC focusing methods, the device can maximize the concentration ratio to achieve a higher collection temperature while ensuring the sunlight receiving angle, reduce optical losses and the number of reflector angle adjustments, and improve the comprehensive collection efficiency of the solar collector. At the same time, CPC has high angle adjustability, a wide range of applications, a simple structure, easy assembly and disassembly, low cost, and good promotion potential. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a structural schematic diagram of a multi-dimensional combined adjustable CPC heat collecting device;

[0020] Figure 2 It is a schematic diagram of the structure of a straight-through all-glass vacuum collector tube with a socket;

[0021] Figure 3 It is a schematic diagram of the structure of a curved heat pipe vacuum collector;

[0022] Figure 4 It is a structural schematic diagram of a dual-stage adjustable angle support frame device;

[0023] Among them: 1 is a straight-through all-glass vacuum collector tube with a socket, 2 is a curved heat pipe vacuum collector tube, 3 is a primary semi-compound parabolic concentrator, 4 is a secondary curved double-dimensional compound parabolic concentrator, 5 is a two-stage adjustable angle support frame device, 6 is an outer glass tube, 7 is an inner glass tube, 8 is a vacuum layer of a full-glass vacuum collector tube, 9 is a glass socket, 10 is a rubber ring, 11 is a curved glass tube, 12 is a heat pipe evaporation section, 13 is a heat pipe vacuum collector tube vacuum layer, 14 is a collector tube end cap, 15 is a heat pipe condenser Segment, 16 is the primary concentrator curved support rod, 17 is the secondary concentrator curved support rod, 18 is the secondary concentrator support cross frame, 19 is the primary concentrator support cross frame, 20 is the full glass vacuum collector tube end fixing bracket, 21 is the heat pipe vacuum collector tube fixing bracket, 22 is the secondary curved double-dimensional compound parabolic concentrator plate bracket, 23 is the adjustable bracket, 24 is the main support shaft, 25 is the shaft connecting rod, 26 is the secondary support shaft, 27 is the main shaft end device, 28 is the secondary shaft end device, and 29 is the inclined support frame. DETAILED DESCRIPTION

[0024] 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.

[0025] Example 1

[0026] See also Figure 1, a multi-dimensional combined adjustable CPC heat collecting device is adopted, including a straight-through all-glass vacuum heat collecting tube 1 with a socket, a curved heat pipe vacuum heat collecting tube 2, a primary semi-compound parabolic concentrator 3, a secondary curved double-dimensional compound parabolic concentrator 4, and a double-stage adjustable angle support frame device 5; the straight-through all-glass vacuum heat collecting tube 1 with a socket is placed horizontally, and multiple curved heat pipe vacuum heat collecting tubes 2 are placed side by side, and the lower end of the curved heat pipe vacuum heat collecting tube 2 is inserted into the straight-through all-glass vacuum heat collecting tube 1 with a socket, and the axis of the curved heat pipe vacuum heat collecting tube 2 is bent upward; a secondary curved double-dimensional compound parabolic concentrator 4 is provided below each curved heat pipe vacuum heat collecting tube 2, and a radial section of the curved heat pipe vacuum heat collecting tube 2 is provided. On the surface, the secondary curved two-dimensional compound parabolic concentrator 4 is a compound parabolic surface with the curved heat pipe type vacuum collector tube 2 as the receiving tube, and on the axial vertical section of the curved heat pipe type vacuum collector tube 2, the secondary curved two-dimensional compound parabolic concentrator 4 is parallel to the axial curve of the curved heat pipe type vacuum collector tube 2; the primary semi-compound parabolic concentrator 3 and the secondary curved two-dimensional compound parabolic concentrator 4 are fixed on a two-stage adjustable angle support frame device 5, and the primary semi-compound parabolic concentrator 3 is a half-side compound parabolic surface with the straight-through all-glass vacuum collector tube 1 with a socket as the receiving tube; the straight-through all-glass vacuum collector tube 1 with a socket and the curved heat pipe type vacuum collector tube 2 are fixed on the two-stage adjustable angle support frame device 5.

[0027] Example 2

[0028] See also Figure 2 As an improvement of the present invention, the curved heat pipe type vacuum collector tube 2 includes an outer glass tube 6, an inner glass tube 7, an all-glass vacuum collector tube vacuum layer 8, a glass socket 9, and a rubber ring 10; the outer glass tube 6 is located outside the inner glass tube 7, and the all-glass vacuum collector tube vacuum layer 8 is between the outer glass tube 6 and the inner glass tube 7; the ends of the outer glass tube 6 and the inner glass tube 7 are sealed and connected by fusion sealing, the outside of the outer glass tube 6 is connected to the inside of the inner glass tube 7 through the glass socket 9, the glass socket 9 is embedded with a rubber ring 10, and the outer surface of the inner glass tube 7 is covered with a selective absorption coating.

[0029] Example 3

[0030] See also Figure 3As an improvement of the present invention, the curved heat pipe vacuum collector tube 2 includes a curved glass tube 11, a heat pipe evaporation section 12, a heat pipe vacuum collector tube vacuum layer 13, a heat pipe end cover 14, and a heat pipe condensation section 15; the axis of the curved glass tube 11 is parallel to the axis of the heat pipe evaporation section 12 and is a section of a compound parabolic curve, the curved glass tube 11 is a single-layer glass sleeve, one end of the curved glass tube 11 is closed, and the other end is connected to the heat pipe end cover 14 to form a sealed space, the heat pipe evaporation section 12 and the heat pipe condensation section 15 are respectively located inside and outside the sealed space, the heat pipe evaporation section 12 and the heat pipe condensation section 15 are interconnected tubular structures, the heat pipe vacuum collector tube vacuum layer 13 is between the curved glass tube 11 and the heat pipe evaporation section 12, and the outer surface of the heat pipe evaporation section 12 is covered with a selective absorption coating.

[0031] Example 4

[0032] See also Figure 4 As an improvement of the present invention, the two-stage adjustable angle support frame device 5 includes a primary concentrator curved support rod 16, a secondary concentrator curved support rod 17, a primary concentrator support cross frame 19, a secondary concentrator support cross frame 18, a full-glass vacuum collector tube end fixing bracket 20, a heat pipe vacuum collector tube fixing bracket 21, a secondary curved double-dimensional composite parabolic concentrator bracket 22, an adjustable bracket 23, a main support shaft 24, a shaft connecting rod 25, and a secondary support shaft 26, main shaft end device 27, secondary shaft end device 28, inclined support frame 29; the main support shaft 24 and the secondary support shaft 26 are rotatable rod-shaped structures, the end of the main support shaft 24 is connected to the main shaft end device 27, and the end of the secondary support shaft 26 is connected to the secondary shaft end device 28; the main shaft end device 27 is fixed to the inclined support frame 29, and the inclined support frame 29 is placed on the ground, and the main support shaft 24 is fixedly connected to the secondary focusing plate curved support rod 17, the rotating shaft 28, and the rotating shaft 29. The shaft connecting rod 25 and the all-glass vacuum collector tube end fixing bracket 20 are provided. The other end of the shaft connecting rod 25 is fixedly connected to the secondary shaft end device 28. The secondary support shaft 26 is fixedly connected to the primary concentrator curved support rod 16. The secondary concentrator curved support rod 17 is provided with a plurality of secondary concentrator support cross frames 18. The uppermost and lowermost secondary concentrator support cross frames 18 are fixedly connected to a plurality of heat pipe vacuum collector tube fixing brackets 21. The remaining secondary concentrator support cross frames 18 are fixedly connected to a plurality of A secondary curved two-dimensional compound parabolic concentrator bracket 22; a plurality of primary concentrator support cross frames 19 are arranged on the primary concentrator curved support rod 16, and the adjustable bracket 23 includes an upper internal threaded tube, a positive and negative threaded rod, and a lower internal threaded rod. The positive and negative threaded rods are connected to the upper internal threaded tube and the lower internal threaded rod through threads, and the lower part of the lower internal threaded tube is fixed on the primary concentrator support cross frame 19, and the upper part of the upper internal threaded tube of the adjustable bracket 23 is connected and fixed to the primary semi-compound parabolic concentrator 3.

[0033] Example 5

[0034] See also Figure 1 As an improvement of the present invention, the axis of the curved heat pipe vacuum collector tube 2 is a section of a compound parabolic curve.

[0035] Example 6

[0036] See also Figure 4 As an improvement of the present invention, the secondary curved two-dimensional compound parabolic concentrator bracket 22 and the adjustable bracket 23 are provided with magnetic blocks, and the primary semi-compound parabolic concentrator 3 and the secondary curved two-dimensional compound parabolic concentrator 4 are provided with iron bars.

[0037] Example 7

[0038] See also Figure 4 As an improvement of the present invention, the number of the secondary concentrator panel supporting cross frame 18 and the primary concentrator panel supporting cross frame 19 is 4 to 8, the number of the heat pipe type vacuum collector tube fixed bracket 21 and the secondary curved two-dimensional composite parabolic concentrator panel bracket 22 on each secondary concentrator panel supporting cross frame 18 is 2 to 10, and the number of the adjustable bracket 23 on each primary concentrator panel supporting cross frame 19 is 2 to 10.

[0039] Working principle and process:

[0040] See also Figure 1-Figure 4 , part of the sunlight irradiated on the primary semi-compound parabolic concentrator 3 is reflected on the straight-through all-glass vacuum collector tube 1 with a socket, and part of it is reflected on the secondary curved two-dimensional compound parabolic concentrator 4 and the curved heat pipe vacuum collector tube 2; part of the sunlight irradiated on the secondary curved two-dimensional compound parabolic concentrator 4 is reflected on the curved heat pipe vacuum collector tube 2, and part of it is reflected on the straight-through all-glass vacuum collector tube 1 with a socket; another part of the sunlight is directly irradiated on the straight-through all-glass vacuum collector tube 1 with a socket and the curved heat pipe vacuum collector tube 2; the solar energy received on the curved heat pipe vacuum collector tube 2 is transmitted to the straight-through all-glass vacuum collector tube 1 with a socket through the heat pipe, so that the solar energy irradiated into the device is finally integrated into the straight-through all-glass vacuum collector tube 1.

[0041] The light refracted onto the curved heat pipe vacuum collector tube 2 is concentrated twice by the primary semi-compound parabolic concentrator 3 and the secondary curved two-dimensional compound parabolic concentrator 4, and has a higher concentration ratio. The heat pipe vacuum collector tube itself has the characteristics of high temperature and high efficiency. The combination of the two can ensure that the heat collection medium can reach a higher collection temperature and has a higher collection efficiency.

[0042] The primary semi-compound parabolic concentrator 3 and the straight-through all-glass vacuum collector tube 1 are for longitudinal focusing, and the secondary curved double-dimensional compound parabolic concentrator 4 and the curved heat pipe vacuum collector tube 2 are for transverse focusing. The combination of multi-dimensional focusing can reduce the number of CPC angle adjustments while ensuring a large concentration ratio, while minimizing optical losses.

[0043] The orientation angle of the entire focusing device can be adjusted by rotating the main support shaft 24, and the angle of the primary semi-compound parabolic focusing plate 3 can be adjusted by rotating the secondary support shaft 26 to adapt to the installation of different types of CPC reflective plates.

[0044] The design of the adjustable bracket 23 can adjust the height of the focusing plate bracket by rotating the positive and negative threaded rods; the focusing plate support frame with a magnetic block is adopted, and the focusing plate is made of iron material or has a magnet on the back, which can facilitate the fixing and disassembly of the two-stage focusing plate, position adjustment and angle adjustment of the secondary curved two-dimensional compound parabolic focusing plate 4.

[0045] The present invention can also combine at least one of the technical features described in Examples 2, 3, 4, 5, 6, and 7 with Example 1 to form a new implementation method.

[0046] 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. A multi-dimensional adjustable CPC heat collector, characterized in that The multi-dimensional combined adjustable CPC heat collecting device comprises a straight-through all-glass vacuum heat collecting tube with a jack, a curved heat pipe vacuum heat collecting tube, a primary semi-compound parabolic concentrator, a secondary curved double-dimensional compound parabolic concentrator, and a double-stage adjustable angle support frame device; the straight-through all-glass vacuum heat collecting tube with a jack is placed horizontally, and a plurality of curved heat pipe vacuum heat collecting tubes are placed side by side, and the lower end of the curved heat pipe vacuum heat collecting tube is inserted into the straight-through all-glass vacuum heat collecting tube with a jack, and the axis of the curved heat pipe vacuum heat collecting tube is bent upward; a secondary curved double-dimensional compound parabolic concentrator is provided below each curved heat pipe vacuum heat collecting tube, and a radial section of the curved heat pipe vacuum heat collecting tube is provided. On the surface, the secondary curved double-dimensional compound parabolic concentrator is a compound parabolic surface with a curved heat pipe vacuum collector tube as a receiving tube, and on the axial vertical section of the curved heat pipe vacuum collector tube, the secondary curved double-dimensional compound parabolic concentrator and the axial curve of the curved heat pipe vacuum collector tube are parallel; the primary semi-compound parabolic concentrator and the secondary curved double-dimensional compound parabolic concentrator are fixed on a two-stage adjustable angle support frame device, and the primary semi-compound parabolic concentrator is a half-side compound parabolic surface with a straight-through all-glass vacuum collector tube with a socket as a receiving tube; the straight-through all-glass vacuum collector tube with a socket and the curved heat pipe vacuum collector tube are fixed on a two-stage adjustable angle support frame device; The curved heat pipe type vacuum heat collector comprises an outer glass tube, an inner glass tube, a vacuum layer of an all-glass vacuum heat collector, a glass jack, and a rubber ring; the outer glass tube is located outside the inner glass tube, and the vacuum layer of the all-glass vacuum heat collector is between the outer glass tube and the inner glass tube; the ends of the outer glass tube and the inner glass tube are sealed and connected by fusion sealing, the outside of the outer glass tube is connected to the inside of the inner glass tube through the glass jack, a rubber ring is embedded in the glass jack, and the outer surface of the inner glass tube is covered with a selective absorption coating; The curved heat pipe vacuum collector tube comprises a curved glass tube, a heat pipe evaporation section, a heat pipe vacuum collector tube vacuum layer, a heat pipe end cover, and a heat pipe condensation section; the axis of the curved glass tube is parallel to the axis of the heat pipe evaporation section and is a section of a compound parabolic curve; the curved glass tube is a single-layer glass sleeve, one end of the curved glass tube is closed, and the other end is connected to the heat pipe end cover to form a sealed space; the heat pipe evaporation section and the heat pipe condensation section are respectively located inside and outside the sealed space; the heat pipe evaporation section and the heat pipe condensation section are interconnected tubular structures; the vacuum layer of the heat pipe vacuum collector tube is between the curved glass tube and the heat pipe evaporation section, and the outer surface of the heat pipe evaporation section is covered with a selective absorption coating.

2. A multi-dimensional combined adjustable CPC heat collector according to claim 1, characterized in that The described two-stage adjustable angle support frame device includes a primary concentrator curved support rod, a secondary concentrator curved support rod, a primary concentrator support cross frame, a secondary concentrator support cross frame, a full-glass vacuum collector tube end fixing bracket, a heat pipe vacuum collector tube fixing bracket, a secondary curved two-dimensional composite parabolic concentrator plate bracket, an adjustable bracket, a main support shaft, a shaft connecting rod, a secondary support shaft, a main shaft end device, a secondary shaft end device, and an inclined support frame; the main support shaft and the secondary support shaft are rotatable rod-shaped structures, the end of the main support shaft is connected to the main shaft end device, and the end of the secondary support shaft is connected to the secondary shaft end device; the main shaft end device is fixed on the inclined support frame, the inclined support frame is placed on the ground, and the main support shaft is fixedly connected with the secondary concentrator curved support rod, the shaft connecting rod, and the full-glass vacuum collector tube end A fixed bracket, the other end of the shaft connecting rod is fixedly connected to the secondary shaft end device, and the secondary supporting shaft is fixedly connected to the primary concentrator plate curved support rod; a plurality of secondary concentrator plate supporting cross frames are arranged on the secondary concentrator plate curved support rod, a plurality of heat pipe type vacuum collector tube fixed brackets are fixedly connected to the uppermost and lowermost secondary concentrator plate supporting cross frames, and a plurality of secondary curved double-dimensional compound parabolic concentrator plate brackets are fixedly connected to the remaining secondary concentrator plate supporting cross frames; a plurality of primary concentrator plate supporting cross frames are arranged on the primary concentrator plate curved support rod, and the adjustable bracket comprises an upper internal threaded tube, a positive and negative threaded rod, and a lower internal threaded rod, the positive and negative threaded rod is connected to the upper internal threaded tube and the lower internal threaded rod by threads, the lower part of the lower internal threaded tube is fixed on the primary concentrator plate supporting cross frame, and the upper part of the upper internal threaded tube of the adjustable bracket is connected and fixed to the primary semi-compound parabolic concentrator.

3. The multi-dimensional combined adjustable CPC heat collector device according to claim 1, characterized in that The axis of the curved heat pipe vacuum heat collecting tube is a section of a compound parabolic curve.

4. The multi-dimensional combined adjustable CPC heat collector device according to claim 2, characterized in that The secondary curved double-dimensional compound parabolic concentrator support and the adjustable support are provided with magnetic blocks, and the primary semi-compound parabolic concentrator and the secondary curved double-dimensional compound parabolic concentrator are provided with iron bars.

5. The multi-dimensional combined adjustable CPC heat collector device according to claim 2, characterized in that The number of the secondary concentrator panel support cross frames and the primary concentrator panel support cross frames is 4 to 8, the number of the heat pipe type vacuum collector tube fixed brackets and the secondary curved two-dimensional composite parabolic concentrator panel brackets on each secondary concentrator panel support cross frame is 2 to 10, and the number of the adjustable brackets on each primary concentrator panel support cross frame is 2 to 10.

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