Snake-shaped solar vacuum glass tube pressure collector and collector system

Abstract

The present application relates to a serpentine solar vacuum glass tube pressure collector and a collector system, and relates to the technical field of collectors, wherein the collector includes two headers and a plurality of straight-through solar vacuum glass collector tubes arranged between the two headers, and the two headers are provided with a plurality of perforations along the distribution direction of the straight-through solar vacuum glass collector tubes, and the two ends of the straight-through solar vacuum glass collector tubes are respectively penetrated through the corresponding perforations on the two headers; each straight-through solar vacuum glass collector tube is penetrated with a heat-conducting metal straight tube; an elastic straight tube bracket is provided between the straight-through solar vacuum glass collector tube and the corresponding heat-conducting metal straight tube, and a connecting pipe fitting that connects all the heat-conducting metal straight tubes into an S-shaped serpentine pipe is connected between the heat-conducting metal straight tubes at the heads of two adjacent straight-through solar vacuum glass collector tubes. The present application has the effect of being able to control the upper limit of the temperature of the heat transfer medium within a controllable time range.

Description

Technical Field

[0001] The present application relates to the technical field of heat collectors, and in particular to a serpentine solar vacuum glass tube pressure collector and a heat collector system. Background Art

[0002] The principle of the solar vacuum glass tube collector is: solar energy is irradiated through the outer glass tube of the solar vacuum glass tube to the heat-absorbing coating on the outer surface of the inner glass tube of the solar vacuum glass tube, thereby converting the solar energy into thermal energy, and then heating the heat transfer fluid in the inner glass tube. Since the inner and outer tube interlayers of the solar vacuum glass tube are evacuated, the heat loss to the surrounding environment is effectively reduced, thereby improving the heat collection efficiency.

[0003] The solar vacuum glass tubes of the solar vacuum glass tube pressure collectors commonly seen on the market all adopt a structure with the same inlet and outlet, that is, a single-port blind tube structure, which is shaped like a slender thermos. The heating principle of this solar vacuum glass tube is that when the solar vacuum glass tube is exposed to sunlight, photons hit the heat-absorbing coating on the solar vacuum glass tube, and the solar energy is converted into heat energy. The water in the solar vacuum glass tube absorbs heat from the coating, the water temperature rises, the density decreases, the hot water moves upward, and the cold water with a higher specific gravity moves downward, so that the hot water is always located in the upper part, that is, the water tank.

[0004] However, the above-mentioned prior art solutions have the following defects: since the length of the solar vacuum glass tube with a single-mouth blind tube structure is limited, it takes a relatively long time to heat the liquid medium to a higher temperature through the solar vacuum glass tube pressure collector, which has the disadvantage of a slow heating rate of the heated medium. Summary of the invention

[0005] In order to improve the problem of slow medium heating speed in the existing solar vacuum glass tube pressure collector, the present application provides a serpentine solar vacuum glass tube pressure collector and a collector system.

[0006] In the first aspect, the present application provides a serpentine solar vacuum glass tube pressure collector, which adopts the following technical solution:

[0007] A serpentine solar vacuum glass tube pressure collector, characterized in that it comprises two symmetrically arranged headers and a plurality of straight-through solar vacuum glass heat collecting tubes arranged between the two headers, wherein the plurality of straight-through solar vacuum glass heat collecting tubes are parallel to each other and arranged in sequence along a straight line;

[0008] The two headers are provided with a plurality of through holes matching the outer diameter of the ends of the straight-through solar vacuum glass heat collecting tubes along the distribution direction of the straight-through solar vacuum glass heat collecting tubes, and the two ends of the straight-through solar vacuum glass heat collecting tubes are respectively passed through the corresponding through holes on the two headers;

[0009] Each of the straight-through solar vacuum glass heat collecting tubes is provided with a heat-conducting metal straight tube, the length of the heat-conducting metal straight tube is greater than the length of the straight-through solar vacuum glass heat collecting tube, and both ends of the heat-conducting metal straight tube extend out of the corresponding plurality of straight-through solar vacuum glass heat collecting tubes;

[0010] An elastic straight tube bracket is arranged between each of the straight-through solar vacuum glass collector tubes and the corresponding heat-conducting metal straight tube, and a connecting pipe fitting is connected between the heat-conducting metal straight tubes at the heads of two adjacent straight-through solar vacuum glass collector tubes to connect all the heat-conducting metal straight tubes into an S-shaped serpentine pipe.

[0011] By adopting the above technical solution, on the one hand, the S-shaped serpentine medium circulation pipeline has the advantage of a long pipeline compared to the solar vacuum glass tube with a single-mouth blind tube structure, which can allow the heat transfer medium in the pipeline to rise to the limit temperature or the desired temperature in a short time, thereby achieving the effect of temperature superposition. In addition, the heating time and heating temperature of the medium in the pipeline are controllable, as long as the flow rate of the medium in the pipeline is controlled. On the other hand, compared with the collector of the traditional paper clip-shaped metal tube structure, the S-shaped serpentine medium circulation pipeline has fewer bends and the caliber of the S-shaped serpentine medium circulation pipeline and the straight-through solar vacuum glass collector tube tend to be consistent, so that the S-shaped serpentine medium circulation pipeline has a larger medium capacity and smaller resistance than the traditional paper clip-shaped metal tube structure, which helps to fully take away the heat absorbed and converted by the straight-through solar vacuum glass collector tube, thereby helping to avoid heat waste. Specifically, the heating process of water or liquid medium is as follows: after the water or the heated liquid medium flows into the inlet of the S-shaped serpentine pipe, it is continuously heated step by step through the S-shaped serpentine medium flow pipeline whose diameter is consistent with the diameter of the straight-through solar vacuum glass collector tube. Because the straight-through solar vacuum glass collector tube has excellent light-to-heat conversion performance and thermal insulation performance, the temperature of the water or the heated liquid medium continues to rise and can reach a higher temperature in a short time.

[0012] In a preferred example, the present application can be further configured as follows: the heat-conducting metal straight tube is an aluminum tube.

[0013] By adopting the above technical solution, the aluminum tube has better thermal conductivity. When the straight-through solar vacuum glass collector tube is irradiated by sunlight, photons hit the heat-absorbing coating, and the solar energy is converted into heat energy. The aluminum tube absorbs heat from the coating and transfers the heat to the water or other liquid medium flowing in it, so that the temperature of the water or liquid medium increases. While ensuring the heat transfer function, the material cost is reduced compared to the traditional copper tube with a paper clip-shaped metal tube structure.

[0014] In a preferred example, the present application can be further configured as follows: the elastic straight tube bracket is a hollow aluminum plate and is C-shaped.

[0015] By adopting the above technical solution, there is a certain space between the heat-conducting metal straight tube and the straight-through solar vacuum glass heat-collecting tube for the elastic straight tube bracket to deform, which is more conducive to the assembly between the heat-conducting metal straight tube and the straight-through solar vacuum glass heat-collecting tube. In addition, since the elastic straight tube bracket is a hollow aluminum plate, it is also more conducive to heat transfer and ensures the heating speed of the heat transfer medium.

[0016] In a preferred example, the present application can be further configured as follows: a dustproof fixing silicone ring is provided between the outer wall of the end of the straight-through solar vacuum glass collector tube (2) extending into the perforation and the inner wall of the corresponding perforation.

[0017] By adopting the above technical solution, on the one hand, the sealing between the straight-through solar vacuum glass heat collecting tube and the header is improved, which has the effect of dust prevention. On the other hand, it is beneficial to the friction between the contact part of the dust-proof fixing silicone ring and the straight-through solar vacuum glass heat collecting tube, so as to achieve the purpose of fixing and positioning the straight-through solar vacuum glass heat collecting tube.

[0018] In a preferred example, the present application can be further configured as follows: a convex pattern is provided on the inner wall of the dustproof fixing silicone ring (12).

[0019] By adopting the above technical solution, the friction between the dustproof fixing silicone ring and the contact part of the straight-through solar vacuum glass collector tube is further increased, so that the positioning effect of the straight-through solar vacuum glass collector tube is better.

[0020] In a preferred example, the present application can be further configured as follows: the connecting pipe fitting is a semicircular elbow, and the connecting pipe fitting includes an inner connecting pipe and an outer insulation pipe coated outside the inner connecting pipe; the two ends of the outer insulation pipe are respectively sleeved on the ends of the corresponding straight-through solar vacuum glass collector tubes, and the two ends of the inner connecting pipe are respectively sleeved on the ends of the corresponding heat-conducting metal straight tubes.

[0021] By adopting the above technical solution, the semicircular elbow makes the turning point of the entire serpentine medium circulation pipeline arc-shaped, which is conducive to reducing the resistance of water flow, thereby also reducing the impact pressure on the serpentine medium circulation pipeline. In addition, setting the connecting pipe fittings as a double-layer structure not only ensures the connectivity between the heat-conducting metal straight pipes, but also plays a role in heat preservation, preventing the heat in the heat transfer medium from dissipating from the connecting pipe fittings.

[0022] In a preferred example, the present application can be further configured as follows: a connecting ear that can interfere with the outer wall of the connecting box body is provided on the outer wall of the connecting pipe, and a through hole for a screw to pass through is provided on the connecting ear.

[0023] By adopting the above technical solution, the connection stability between the connecting pipe fittings and the heat-conducting metal straight pipe and the straight-through solar vacuum glass collector pipe can be ensured.

[0024] In a second aspect, the present application provides a collector system, which adopts the following technical solution:

[0025] A collector system comprises a plurality of serpentine solar vacuum glass tube pressure collectors as described in the above technical solution, wherein the plurality of serpentine solar vacuum glass tube pressure collectors are sequentially connected in series.

[0026] By adopting the above technical solution, multiple serpentine solar vacuum glass tube pressure collectors can be easily used in series and connected to form a longer serpentine medium flow pipeline, which can be used in some fields such as centralized heating or medium and high temperature heating that require large-area collectors to be used in series, thereby expanding the scope of use of serpentine solar vacuum glass tube pressure collectors.

[0027] In a preferred example, the present application can be further configured as follows: one end of the serpentine pipe of the serpentine solar vacuum glass tube pressure collector is an inlet, and the other end is an outlet; and the inlet and outlet of the serpentine solar vacuum glass tube pressure collector are both located on the same header body;

[0028] The inlet of the first serpentine solar vacuum glass tube pressure collector and the outlet of the last serpentine solar vacuum glass tube pressure collector in the series-connected multiple serpentine solar vacuum glass tube pressure collector are both connected with ferrule elbows, and the inlets and outlets of the remaining adjacent serpentine solar vacuum glass tube pressure collectors are connected through the connecting pipe fittings.

[0029] By adopting the above technical scheme, it is convenient to use multiple serpentine solar vacuum glass tube pressure collectors in series, and when connecting multiple serpentine solar vacuum glass tube pressure collectors in series, two adjacent serpentine solar vacuum glass tube pressure collectors can be connected together through connecting pipe fittings, thereby greatly reducing the operating cost and the manufacturing cost of accessories.

[0030] In a preferred example, the present application can be further configured as follows: the two connecting boxes at one end of the same direction of two adjacent serpentine solar vacuum glass tube pressure collectors are a group, and the two connecting boxes in each group of connecting boxes are arranged at ends facing each other and are commonly provided with a snap-fit ​​sleeve.

[0031] By adopting the above technical solution, the connection stability between adjacent junction boxes can be improved, and the positions of adjacent junction boxes can correspond more accurately, which is more conducive to the installation of connecting pipes at the joints of adjacent junction boxes.

[0032] In summary, the present application includes at least one of the following beneficial technical effects:

[0033] 1. Through the arrangement of the header, perforation, straight-through solar vacuum glass heat collecting tube, heat-conducting metal straight tube and elastic straight tube bracket, adjacent heat-conducting metal straight tubes are connected by connecting pipe fittings, so that all heat-conducting metal straight tubes form an S-shaped serpentine pipe; on the one hand, the heat transfer medium in the pipe can be raised to the limit temperature or the desired temperature in a short time, so as to achieve the effect of temperature superposition; on the other hand, the S-shaped serpentine pipe has fewer bends than the collector of the traditional paper clip-shaped metal tube structure, and the caliber of the S-shaped serpentine pipe and the straight-through solar vacuum glass heat collecting tube tends to be consistent, so that its medium capacity is larger than that of the pipeline of the traditional paper clip-shaped metal tube structure, thereby helping to fully carry away the heat absorbed and converted by the straight-through solar vacuum glass heat collecting tube;

[0034] 2. The setting of dustproof fixing silicone ring and connecting ear not only improves the connection stability between the straight-through solar vacuum glass collector tube and the header body, but also improves the connection stability between the connecting pipe fittings and the heat-conducting metal straight pipe and the straight-through solar vacuum glass collector tube. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] Figure 1 This is a schematic diagram of the overall structure of the serpentine solar vacuum glass tube pressure collector according to an embodiment of the present application;

[0036] Figure 2 This is a schematic structural diagram of a straight-through solar vacuum glass heat collecting tube according to an embodiment of the present application;

[0037] Figure 3 is a cross-sectional view of a serpentine solar vacuum glass tube pressure collector according to an embodiment of the present application;

[0038] Figure 4 yes Figure 3 A magnified view of part A;

[0039] Figure 5 It is a three-dimensional diagram of a serpentine solar vacuum glass tube pressure collector according to an embodiment of the present application;

[0040] Figure 6 yes Figure 5 A magnified view of part B;

[0041] Figure 7 is a schematic structural diagram of a collector system in one of the embodiments of the present application;

[0042] Figure 8 It is a structural schematic diagram of another collector system of an embodiment of the present application.

[0043] In the figure, 1, connecting box body; 11, perforation; 12, dustproof fixing silicone ring; 13, convex pattern; 2, straight-through solar vacuum glass collector tube; 21, heat-conducting metal straight tube; 22, elastic straight tube bracket; 3, connecting pipe fittings; 31, inner layer connecting tube; 32, outer layer insulation tube; 33, connecting ear; 34, through hole; 35, make way hole; 4, bracket; 5, inlet; 6, outlet; 7, ferrule elbow; 8, snap sleeve; 91, medium inlet pipe; 92, medium outlet pipe. DETAILED DESCRIPTION

[0044] The present application is further described in detail below in conjunction with the accompanying drawings.

[0045] The straight-through solar vacuum glass collector tube is composed of two concentric glass tubes, one inside and one outside. Selective absorption wax with high absorption rate and low emissivity is deposited on the outer surface or inner surface of the inner tube to form a heat-absorbing coating. The inner and outer tubes are evacuated to form a high vacuum. Both ends of the entire straight-through solar vacuum glass collector tube are open. Like the traditional single-port blind tube solar vacuum tube, it has excellent light-to-heat conversion performance and thermal insulation performance. When the straight-through solar vacuum glass collector tube is exposed to sunlight, photons hit the heat-absorbing coating, and the solar energy is converted into heat energy. The medium flowing inside the inner tube or the medium flow pipe passing through the inner tube absorbs heat from the coating, and the water temperature rises.

[0046] The present application embodiment discloses a serpentine solar vacuum glass tube pressure collector. Figure 1 The serpentine solar vacuum glass tube pressure collector includes two symmetrically arranged headers 1 and a plurality of straight-through solar vacuum glass collector tubes 2 arranged between the two headers 1. The two headers 1 are both long strips, and the plurality of straight-through solar vacuum glass collector tubes 2 are parallel to each other and arranged in sequence along the length direction of the headers 1.

[0047] Reference Figure 2Each straight solar vacuum glass heat collecting tube 2 is penetrated by a heat-conducting metal straight tube 21, the length of the heat-conducting metal straight tube 21 is greater than the length of the straight solar vacuum glass heat collecting tube 2, and both ends extend out of the corresponding straight solar vacuum glass heat collecting tube 2. In order to improve the heat absorption performance of the heat-conducting metal straight tube 21 and reduce the material cost, the heat-conducting metal straight tube 21 is selected from aluminum tubes, and the liquid medium is stored and flows through the aluminum tubes. An elastic straight tube bracket 22 is arranged between each straight solar vacuum glass heat collecting tube 2 and the corresponding heat-conducting metal straight tube 21. The elastic straight tube bracket 22 adopts a C-shaped hollow aluminum plate, which is arranged along the length direction of the straight solar vacuum glass heat collecting tube 2 and has openings at both ends. Since the aluminum plate is arranged as a hollow structure, the elastic straight tube bracket 22 has a certain deformation ability, and can be easily installed between the straight solar vacuum glass heat collecting tube 2 and the heat-conducting metal straight tube 21 and supports the heat-conducting metal straight tube 21.

[0048] Reference Figure 3 and Figure 4 , a plurality of perforations 11 are arranged on both headers 1 along the distribution direction of the straight-through solar vacuum glass heat collecting tubes 2, the number of perforations 11 on each header 1 is equal to the number of the straight-through solar vacuum glass heat collecting tubes 2 between the two headers 1, and the perforations 11 on one header 1 are arranged one-to-one with the perforations 11 on the other header 1. The perforations 11 match the outer diameter of the ends of the straight-through solar vacuum glass heat collecting tubes 2, the two ends of the straight-through solar vacuum glass heat collecting tubes 2 are respectively penetrated through the corresponding perforations 11 on the two headers 1, and the two ends of the straight-through solar vacuum glass heat collecting tubes 2 are both located on the outside of the header 1.

[0049] Reference Figure 2 and Figure 4 In order to ensure the sealing and tightness of the connection between the straight-through solar vacuum glass heat collecting tube 2 and the header 1, a dustproof fixing silicone ring 12 is arranged between the outer wall of the end of the straight-through solar vacuum glass heat collecting tube 2 extending into the through hole 11 and the inner wall of the corresponding through hole 11. The inner wall of the dustproof fixing silicone ring 12 is provided with a convex pattern 13, which can increase the friction between the dustproof fixing silicone ring 12 and the straight-through solar vacuum glass heat collecting tube 2, thereby increasing the positioning effect of the straight-through solar vacuum glass heat collecting tube 2.

[0050] Reference Figure 3 and Figure 4The heat-conducting straight metal tubes 21 at the heads of two adjacent straight-through solar vacuum glass heat-collecting tubes 2 are connected with a connecting pipe 3 that connects all the heat-conducting straight metal tubes 21 into an S-shaped serpentine pipe, and the connecting pipe 3 adopts a semicircular elbow. Specifically, the connecting pipe 3 includes an inner connecting pipe 31 and an outer insulating pipe 32 wrapped outside the inner connecting pipe; the outer insulating pipe 32 adopts an insulating plastic material such as a polyurethane insulating pipe, and both ends of the outer insulating pipe 32 are respectively provided with a clearance hole 35 for inserting the end of the straight-through solar vacuum glass heat-collecting tube 2; the inner connecting pipe 31 also adopts an aluminum tube, and both ends of the inner connecting pipe 31 are respectively sleeved on the ends of the corresponding heat-conducting straight metal tubes 21.

[0051] Reference Figure 5 In actual application, a bracket 4 is fixedly installed at the bottom of the serpentine solar vacuum glass tube pressure collector, so that the serpentine solar vacuum glass tube pressure collector is tilted as a whole to face the sunlight. Figure 4 , one end of the heat-conducting metal straight tube 21 at the bottom is the inlet 5, one end of the heat-conducting metal straight tube 21 at the top is the outlet 6, and the ends of the other adjacent heat-conducting metal straight tubes 21 are connected by connecting pipes 3, so that the heat-conducting metal straight tubes 21 are connected to form an S-shaped serpentine medium flow pipeline. The ends of the heat-conducting metal straight tubes 21 set as the inlet 5 and the outlet 6 are connected with right-angled ferrule elbows 7, and the ferrule elbows 7 are double-layer structures like the connecting pipes 3 except for the shape.

[0052] Reference Figure 6 , the outer walls of the connecting pipe fitting 3 and the ferrule elbow 7 are both provided with connecting ears 33, and the connecting ears 33 are provided with through holes 34 for screws to pass through. After the connecting pipe fitting 3 and the ferrule elbow 7 are connected to the ends of the corresponding straight-through solar vacuum glass heat collecting tube 2, the connecting ears 33 abut against the side walls of the corresponding outer side of the header 1. At this time, the straight-through solar vacuum glass heat collecting tube 2 can be firmly fixed by connecting it to the header 1 through the through holes 34, thereby increasing the connection stability between the straight-through solar vacuum glass heat collecting tube 2 and the header 1.

[0053] The implementation principle of a serpentine solar vacuum glass tube pressure collector in the embodiment of the present application is:

[0054] The heated liquid medium flows in from the ferrule elbow 7 at the inlet 5, and is continuously heated step by step through the S-shaped serpentine medium circulation pipeline, because the straight-through solar vacuum glass heat collection tube 2 has excellent light-to-heat conversion performance and heat preservation performance, which can make the temperature of the heated liquid medium continue to rise. In practical applications, the liquid temperature can be quickly increased or the liquid temperature can be raised to an extremely high temperature by adjusting the flow rate of the liquid. In addition, it should be noted that under the same lighting conditions, the slower the flow rate of the liquid, the longer the time it exists in the S-shaped serpentine medium circulation pipeline, so that more heat can be absorbed, and the temperature to which the liquid finally rises is also higher. At the same time, the S-shaped serpentine medium circulation pipeline is formed by an aluminum tube that is not easy to corrode, which can ensure the clean water quality, and the aluminum tube has a strong pressure resistance, so that the entire serpentine medium circulation pipeline can withstand a higher water pressure and has the ability to operate under pressure.

[0055] The present application also discloses a heat collector system. Figure 7 The collector system includes a medium inlet pipe 91, a medium outlet pipe 92, and a plurality of serpentine solar vacuum glass tube pressure collectors arranged side by side. Specifically, the ferrule elbows 7 at the inlets 5 of the plurality of serpentine solar vacuum glass tube pressure collectors arranged side by side are all connected to the medium inlet pipe 91, and the ferrule elbows 7 at the outlets 6 of the plurality of serpentine solar vacuum glass tube pressure collectors arranged side by side are all connected to the medium outlet pipe 92, forming a structure in which a plurality of serpentine solar vacuum glass tube pressure collectors are connected in parallel.

[0056] The implementation principle of the above-mentioned collector system in the embodiment of the present application is:

[0057] The heated liquid medium in the medium inlet pipe 91 will flow in from the ferrule elbow 7 at the inlet 5 of the multiple serpentine solar vacuum glass tube pressure collectors arranged side by side. In each serpentine solar vacuum glass tube pressure collector, the liquid medium will be continuously heated step by step through the S-shaped serpentine medium circulation pipeline whose diameter is consistent with the diameter of the straight-through solar vacuum glass collector tube 2, and finally flow out from the medium outlet pipe 92. Because the straight-through solar vacuum glass collector tube 2 has excellent light-heat conversion performance and thermal insulation performance, and the aluminum tube also has excellent thermal conductivity, the temperature of the water or the heated liquid medium in the serpentine medium circulation pipeline can be continuously increased, and the side-by-side arrangement of multiple serpentine solar vacuum glass tube pressure collectors can also achieve rapid heating of increased liquid capacity, further accelerating the heating efficiency. Moreover, since the single collector of the present application has fewer bends than the traditional paperclip-shaped metal tube structure collector, the liquid resistance is smaller, which is conducive to the large-scale use of multiple collectors in parallel in the field of centralized heating or medium and high temperature fields, expanding the scope of use of the serpentine solar vacuum glass tube pressure collector.

[0058] The present application also discloses another collector system. Figure 8 The collector system includes a plurality of serpentine solar vacuum glass tube pressure collectors, which are sequentially arranged along the length direction of the header 1 and connected in series. Specifically, the inlet 5 and outlet 6 of the serpentine solar vacuum glass tube pressure collector are both located on the same header 1, and two ferrule elbows 7 are respectively connected to the inlet 5 of the first serpentine solar vacuum glass tube pressure collector and the outlet 6 of the last serpentine solar vacuum glass tube pressure collector in the plurality of serpentine solar vacuum glass tube pressure collectors connected in series, and the inlets 5 and outlets 6 of the remaining adjacent serpentine solar vacuum glass tube pressure collectors are connected through the connecting pipe 3.

[0059] Reference Figure 8 The two connecting boxes 1 at one end of the same direction of two adjacent serpentine solar vacuum glass tube pressure collectors are a group. In order to improve the connection stability between the two adjacent serpentine solar vacuum glass tube pressure collectors, the two connecting boxes 1 in each group of connecting boxes 1 are arranged at the ends facing each other and are jointly sleeved with a clamping sleeve 8. The clamping sleeve 8 is annular and tightly sleeved on the end of the corresponding connecting box 1.

[0060] The implementation principle of the above-mentioned another collector system in the embodiment of the present application is:

[0061] By redesigning the structure of the collector system and the connection method between the collectors, the heated liquid medium flows in from the ferrule elbow 7 at the inlet 5 of the collector system, and can be continuously heated step by step through the S-shaped serpentine medium circulation pipeline whose caliber is consistent with the caliber of the straight-through solar vacuum glass collector tube 2. Because the straight-through solar vacuum glass collector tube 2 has excellent light-heat conversion performance and thermal insulation performance, and the aluminum tube also has excellent thermal conductivity, the temperature of the heated liquid medium in the serpentine medium circulation pipeline can be continuously increased. Compared with the traditional collector with a paper clip-shaped metal tube structure, the temperature rise of this application is higher, the heat exchange efficiency is higher, and the heat exchange is more sufficient.

[0062] Moreover, compared with the traditional paper clip-shaped metal tube structure collector, the single collector of the present application has less bends and therefore has less liquid resistance, which is conducive to the large-scale series use of multiple blocks and groups in the field of centralized heating or medium and high temperature fields, thereby expanding the scope of use of the serpentine solar vacuum glass tube pressure collector.

[0063] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A serpentine solar vacuum glass tube pressure collector, characterized in that: It comprises two symmetrically arranged headers (1) and a plurality of straight-through solar vacuum glass heat collection tubes (2) arranged between the two headers (1), wherein the plurality of straight-through solar vacuum glass heat collection tubes (2) are parallel to each other and arranged in sequence along a straight line; A plurality of through holes (11) matching the outer diameter of the end of the straight-through solar vacuum glass heat collection tube (2) are arranged on the two header bodies (1) along the distribution direction of the straight-through solar vacuum glass heat collection tube (2), and the two ends of the straight-through solar vacuum glass heat collection tube (2) are respectively passed through the corresponding through holes (11) on the two header bodies (1); Each of the straight-through solar vacuum glass heat collection tubes (2) is provided with a heat-conducting metal straight tube (21), the length of the heat-conducting metal straight tube (21) is greater than the length of the straight-through solar vacuum glass heat collection tube (2), and both ends of the heat-conducting metal straight tube (2) extend out of the corresponding plurality of straight-through solar vacuum glass heat collection tubes (2); An elastic straight tube bracket (22) is provided between each of the straight solar vacuum glass heat collection tubes (2) and the corresponding heat-conducting metal straight tube (21), and a connecting pipe fitting (3) is connected between the heat-conducting metal straight tubes (21) at the heads of two adjacent straight solar vacuum glass heat collection tubes (2) to connect all the heat-conducting metal straight tubes (21) into an S-shaped serpentine pipe; A dustproof fixing silicone ring (12) is arranged between the outer wall of the end of the straight-through solar vacuum glass heat collecting tube (2) extending into the through hole (11) and the inner wall of the corresponding through hole (11); a convex pattern (13) is arranged on the inner wall of the dustproof fixing silicone ring (12); The connecting pipe fitting (3) is a semicircular elbow, and comprises an inner connecting pipe (31) and an outer insulating pipe (32) wrapped around the inner connecting pipe; the two ends of the outer insulating pipe (32) are respectively sleeved on the ends of the corresponding straight-through solar vacuum glass collector pipe (2), and the two ends of the inner connecting pipe (31) are respectively sleeved on the ends of the corresponding heat-conducting metal straight pipe (21); a connecting ear (33) capable of contacting the outer wall of the header body (1) is provided on the outer wall of the connecting pipe fitting (3), and a through hole (34) for a screw to pass through is provided on the connecting ear (33).

2. The serpentine solar vacuum glass tube pressure collector according to claim 1 is characterized in that: The heat-conducting metal straight tube (21) is an aluminum tube.

3. The serpentine solar vacuum glass tube pressure collector according to claim 1 is characterized in that: The elastic straight tube bracket (22) is a hollow aluminum plate and is C-shaped.

4. A collector system, characterized in that: It comprises a plurality of serpentine solar vacuum glass tube pressure collectors as described in any one of claims 1 to 3, wherein the plurality of serpentine solar vacuum glass tube pressure collectors are connected in series in sequence.

5. The collector system according to claim 4, characterized in that: One end of the serpentine pipe of the serpentine solar vacuum glass tube pressure collector is an inlet (5), and the other end is an outlet (6); and the inlet (5) and the outlet (6) of the serpentine solar vacuum glass tube pressure collector are both located on the same header (1); The inlet (5) of the first serpentine solar vacuum glass tube pressure collector and the outlet (6) of the last serpentine solar vacuum glass tube pressure collector among the plurality of serpentine solar vacuum glass tube pressure collectors connected in series are both connected with a ferrule elbow (7), and the inlets (5) and outlets (6) of the remaining adjacent serpentine solar vacuum glass tube pressure collectors are connected via the connecting pipe fitting (3).

6. The collector system according to claim 5, characterized in that: The two box-joining bodies (1) at the same end of two adjacent serpentine solar vacuum glass tube pressure collectors form a group, and the two box-joining bodies (1) in each group of box-joining bodies (1) are both provided with a clamping sleeve (8) on their ends facing each other.

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