Plateau solar heat collection device

Abstract

The invention discloses a plateau solar heat collection device, and relates to the technical field of solar heat collection devices. Comprising a heat collecting frame, a plurality of heat collecting pipes distributed at equal intervals are installed on the heat collecting frame, a plurality of spherical protrusions are arranged on the heat collecting pipes, and the spherical protrusions of the adjacent heat collecting pipes are arranged in a staggered mode. According to the solar water heater, the heat collecting pipes, the spherical protrusions and other structures are arranged, the spherical protrusions of the adjacent heat collecting pipes are arranged in a staggered mode, the heating area is expanded, and the heat collecting effect is improved; by arranging a first heat transfer plate, a second heat transfer plate, a first elastic bag, a second elastic bag and other structures, in the heat collection process, based on the different heating degrees of the first heat transfer plate and the second heat transfer plate, the temperatures of air in the first elastic bag and the second elastic bag communicating with the first support and the second support are different; and on the basis of the difference of the supporting effect, the upper mounting frame can be inclined to a certain degree, and therefore the better heat collection effect is achieved.

Description

Technical Field

[0001] The invention relates to the technical field of solar energy heat collection devices, and in particular to a plateau solar energy heat collection device. Background Art

[0002] As an important part of renewable energy technology, the core purpose of solar thermal collectors is to efficiently capture and utilize solar energy. With the growing global demand for clean energy, solar thermal collector technology has been widely studied and applied.

[0003] The heat collection efficiency of traditional solar thermal collectors is affected by many factors, such as the angle of illumination, climate conditions, and the cleanliness of the collector surface. In particular, if dust or other dirt accumulates on the collector surface, the light-to-heat conversion efficiency will be significantly reduced. Therefore, keeping the collector surface clean is one of the key measures to improve the efficiency of solar thermal collection. However, most current solar thermal collectors lack an effective self-cleaning mechanism.

[0004] After searching, the application scheme of Chinese patent application No. 201821696019.4 discloses a solar energy device that is easy to maintain the heat collecting tube, including a solar energy mounting bracket, a solar energy heating water tank and a solar energy vacuum heat collecting tube; the solar energy heating water tank is also provided with a heat collecting tube disassembly conduit, the upper end of the heat collecting tube disassembly conduit passes through the top wall of the solar energy heating water tank and is located above the solar energy vacuum heat collecting tube, and the upper end of the heat collecting tube disassembly conduit is provided with a heat insulation plug, the lower end of the heat collecting tube disassembly conduit is located in the solar energy heating water tank and is coaxially sleeved on the upper end of the solar energy vacuum heat collecting tube, and the side wall of the heat collecting tube disassembly conduit is provided with a hollow water hole, and the hollow water hole is located in the solar energy heating water tank. The solar energy device in the above-mentioned document has the following shortcomings: it does not have an angle self-adjustment function, resulting in insufficient heat collecting effect, and lacks a self-cleaning mechanism, and is easily affected by dust or other dirt, resulting in a weakened heat collecting function. Summary of the invention

[0005] The purpose of the present invention is to solve the shortcomings of the prior art and to propose a plateau solar energy heat collection device.

[0006] In order to achieve the above object, the present invention adopts the following technical solutions:

[0007] A plateau solar heat collecting device, comprising:

[0008] A heat collecting frame, on which a plurality of equally spaced heat collecting tubes are mounted, the heat collecting tubes are provided with a plurality of spherical protrusions, and the spherical protrusions of adjacent heat collecting tubes are staggered;

[0009] Upper mounting frame, on which the heat collecting frame is mounted;

[0010] A lower mounting frame, on which a shaft is fixed, and an upper mounting frame is rotatably mounted on the shaft of the lower mounting frame;

[0011] A first heat transfer plate, the first heat transfer plate is mounted on the shaft of the lower mounting frame through a first bracket, the first bracket is hollow inside, the first bracket is connected to a first elastic bag through a first transmission pipe, the top of the first elastic bag is fixed on the upper mounting frame, and the bottom of the first elastic bag is fixed on the lower mounting frame;

[0012] A second heat transfer plate, the second heat transfer plate is mounted on the shaft of the lower mounting frame through a second bracket, the second bracket is hollow inside, the second bracket is connected to a second elastic bag through a second transmission pipe, the top of the second elastic bag is fixed on the upper mounting frame, and the bottom of the second elastic bag is fixed on the lower mounting frame;

[0013] Among them, the angle between the first heat transfer plate and the horizontal plane is smaller than the angle between the second heat transfer plate and the horizontal plane, the first elastic bag is located on one side of the axis of the lower mounting frame close to the bottom end of the heat collecting frame, and the second elastic bag is located on the other side of the axis of the lower mounting frame.

[0014] As a preferred embodiment of the present invention: a base is arranged below the lower mounting frame, a driving motor is installed on the base, the output end of the driving motor is transmission-connected with a driving gear, an annular gear rack is rotatably installed on the top of the base, the annular gear rack is meshed with the driving gear, and the top of the annular gear rack is fixed to the bottom outer wall of the lower mounting frame; a plurality of light sensors are arranged on the outside of the base, a control module is arranged inside the base, the light sensors and the driving motor are signal-connected with the control module, and the control module controls the operation of the driving motor based on the signal transmitted by the light sensor.

[0015] As a preferred embodiment of the present invention: a cleaning structure is installed on the heat collecting frame, and the cleaning structure includes:

[0016] A water collecting box is arranged above the top of the heat collecting frame;

[0017] A water outlet pipe is arranged on an outer wall of one side of the water collecting box.

[0018] As a preferred embodiment of the present invention: a sieve plate is installed on the top of the water collecting box, a plurality of sieve holes are arranged on the sieve plate, waste outlets are opened on both sides of the water collecting box, and the positions of the waste outlets are adapted to the positions of the two ends of the sieve plate.

[0019] As a preferred embodiment of the present invention, the sieve plate is in an inverted V-shaped structure.

[0020] As a preferred embodiment of the present invention: a plurality of brush rods are installed at the bottom of the water collecting box, the brush rods are located in the gaps between adjacent heat collecting tubes, and elastic brush heads distributed circumferentially are arranged on the outside of the brush rods;

[0021] Guide frames are installed on both sides of the heat collecting frame, slide bars are installed on both sides of the water collecting box, the outer side of the guide frame is slidably connected with a slide, a sleeve is fixed on the top of the slide, and the slide bar slides transversely on the inner wall of the sleeve;

[0022] An elastic sleeve is fixed to the outside of one end of the guide frame, one end of the elastic sleeve is fixed to the slide frame, the elastic sleeve is located outside the guide frame, and a corrugated structure that is easy to compress and stretch is provided on the elastic sleeve;

[0023] An upper magnetic block is installed on the heat collecting frame, and a magnetic member is installed on the slide, and the magnetic member is attracted to the upper magnetic block.

[0024] As a preferred embodiment of the present invention: a drain pipe is arranged on one side of the water collecting box, a sealing plug is movably installed on the inner side of the drain pipe through a spring, the sealing plug is a truncated cone structure adapted to the inner wall of the drain pipe, and the maximum diameter of the sealing plug is smaller than the maximum inner diameter of the drain pipe;

[0025] The heat collecting frame is provided with a top frame, which is located on the movement path of the drainage pipe; mounting plates are provided on both sides of the heat collecting frame, lower magnetic blocks are provided on the mounting plates, and the lower magnetic blocks are attracted to the magnetic components.

[0026] As a preferred embodiment of the present invention: a plurality of slideways are installed at the bottom of the heat collecting frame, a slide ball is fixed at the bottom end of the brush rod, the slide ball slides on the inner wall of the slideway, and the shape of the slideway is adapted to the shape of the gap between two adjacent heat collecting tubes.

[0027] As a preferred embodiment of the present invention: a spherical drainage head is provided at the end of the water outlet pipe of the water collecting box, an opening is provided at the bottom of the spherical drainage head, a sealing ball is provided in the spherical drainage head, the diameter of the sealing ball is larger than the inner diameter of the opening, and the radius of the spherical drainage head is larger than the radius of the sealing ball.

[0028] As a preferred embodiment of the present invention, the brush rod is hollow inside, and micropores are arranged on the elastic brush head, and the micropores are connected to the water collecting box based on the inside of the brush rod.

[0029] The beneficial effects of the present invention are:

[0030] 1. The present invention provides heat collecting tubes, spherical protrusions and other structures. The spherical protrusions of adjacent heat collecting tubes are staggered to extend the heating area and improve the heat collection effect. By providing a first heat transfer plate, a second heat transfer plate, a first elastic bag and a second elastic bag and other structures, during the heat collection process, based on the different heating degrees of the first heat transfer plate and the second heat transfer plate, the gas temperatures in the first elastic bag and the second elastic bag connected to the first bracket and the second bracket are also different, resulting in different degrees of thermal expansion and contraction of the two air bags. Based on the difference in supporting effects, the upper mounting frame can be skewed to a certain extent, thereby achieving a better heat collection effect.

[0031] 2. The present invention provides an annular gear rack, a driving motor and other structures, and can control the operation of the driving motor based on the signal transmitted by the light sensor according to actual conditions, thereby moving the heat collecting frame to the side with stronger light, thereby improving the heat collecting effect.

[0032] 3. The present invention provides a water collecting box and other structures, so that rainwater can be collected by the water collecting box and output to the heat collecting tube through the outlet pipe for flushing and cleaning, thereby improving practicality.

[0033] 4. The present invention provides structures such as an elastic brush head, which can enable the slide to slide down along the guide frame after overcoming the magnetic attraction of the upper magnetic block and the magnetic component based on gravity when there is too much water in the water collecting box. During the process, the elastic brush head is used to clean the surface of the heat collecting tube, thereby improving practicality. Since the magnetic attraction structure is provided to store force, the movement range of the structure is guaranteed when overcoming the magnetic attraction and moving downward, thereby improving reliability.

[0034] 5. The present invention provides a top frame, a lower magnetic block and other structures, so that when the water collecting box slides down, the lower magnetic block can be used to attract the magnetic element. At the same time, one end of the top frame is inserted into the drain pipe, and the sealing plug is pushed open, so that the drain pipe is connected and water can be discharged from the drain pipe. After being discharged to a certain extent, the rebound force of the elastic sleeve overcomes the magnetic attraction of the lower magnetic block and the magnetic element, and drives the water collecting box to reset.

[0035] 6. The present invention provides a spherical drain head and a sealing ball and other structures. In a non-moving state, the sealing ball can be used to seal the opening of the spherical drain head to achieve the effect of storing water. When the water reaches a certain amount, the water collecting box slides down. Since the sliding ball has an S-shaped structure that matches the spacing between the heat collecting tubes, during the movement, the sealing ball shakes left and right, causing it to detach from the opening of the spherical drain head. In the entire movement process, the water can be sprinkled on the surface of the heat collecting tube, thereby improving the cleaning effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a schematic structural diagram of a plateau solar thermal collector device proposed by the present invention;

[0037] Figure 2 This is a schematic diagram of the structure of an upper mounting frame and a lower mounting frame of a plateau solar thermal collector device proposed by the present invention;

[0038] Figure 3 This is a schematic structural diagram of a base of a plateau solar thermal collector device proposed by the present invention;

[0039] Figure 4 A schematic diagram of the structure of a heat collecting frame of a plateau solar heat collecting device proposed by the present invention;

[0040] Figure 5This is a schematic diagram of the structure of a water collecting box for a plateau solar thermal collector proposed by the present invention;

[0041] Figure 6 This is a schematic structural diagram of a spherical drainage head and a drainage pipe cross-section of a plateau solar thermal collector device proposed by the present invention.

[0042] In the figure: 1 heat collecting frame, 2 heat collecting tube, 3 elastic sleeve, 4 spherical protrusion, 5 upper mounting frame, 6 second elastic bag, 7 first heat transfer plate, 8 second heat transfer plate, 9 first elastic bag, 10 base, 11 lower mounting frame, 12 driving motor, 13 driving gear, 14 annular gear frame, 15 mounting plate, 16 lower magnetic block, 17 sieve plate, 18 water collecting box, 19 sliding rod, 20 magnetic member, 21 sliding frame, 22 guide frame, 23 top frame, 24 sliding ball, 25 slide, 26 sleeve, 27 upper magnetic block, 28 spherical drainage head, 29 elastic brush head, 30 brush rod, 31 sealing plug, 32 drainage pipe, 33 sealing ball. DETAILED DESCRIPTION

[0043] The technical solution of the present invention is further described in detail below in conjunction with specific implementation methods.

[0044] Embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0045] Embodiment 1:

[0046] A plateau solar thermal collector, such as Figure 1-6 As shown, including:

[0047] A heat collecting frame 1, on which a plurality of equally spaced heat collecting tubes 2 are mounted, and the heat collecting tubes 2 are provided with a plurality of spherical protrusions 4, wherein the spherical protrusions 4 of adjacent heat collecting tubes 2 are staggered;

[0048] An upper mounting frame 5, on which the heat collecting frame 1 is mounted;

[0049] A lower mounting frame 11, on which a shaft is fixed, and an upper mounting frame 5 is rotatably mounted on the shaft of the lower mounting frame 11;

[0050] A first heat transfer plate 7, the first heat transfer plate 7 is mounted on the shaft of the lower mounting frame 11 through a first bracket, the first bracket is hollow inside, the first bracket is connected to a first elastic bag 9 through a first transmission pipe, the top of the first elastic bag 9 is fixed on the upper mounting frame 5, and the bottom of the first elastic bag 9 is fixed on the lower mounting frame 11;

[0051] The second heat transfer plate 8 is mounted on the shaft of the lower mounting frame 11 through a second bracket. The second bracket is hollow inside. The second bracket is connected to a second elastic bag 6 through a second transmission pipe. The top of the second elastic bag 6 is fixed on the upper mounting frame 5, and the bottom of the second elastic bag 6 is fixed on the lower mounting frame 11.

[0052] The angle between the first heat transfer plate 7 and the horizontal plane is smaller than the angle between the second heat transfer plate 8 and the horizontal plane. The first elastic bag 9 is located on one side of the axis of the lower mounting frame 11 close to the bottom end of the heat collecting frame 1, and the second elastic bag 6 is located on the other side of the axis of the lower mounting frame 11.

[0053] By arranging the heat collecting tubes 2, the spherical protrusions 4 and other structures, the spherical protrusions 4 of adjacent heat collecting tubes 2 are arranged in a staggered manner, thereby extending the heating area and improving the heat collecting effect;

[0054] By providing structures such as the first heat transfer plate 7, the second heat transfer plate 8, the first elastic bag 9 and the second elastic bag 6, during the heat collection process, due to the different heating degrees of the first heat transfer plate 7 and the second heat transfer plate 8, the gas temperatures in the first elastic bag 9 and the second elastic bag 6 connected to the first bracket and the second bracket are also different, resulting in different degrees of thermal expansion and contraction of the two air bags. Based on the difference in supporting effects, the upper mounting frame 5 can be skewed to a certain extent, thereby achieving a better heat collection effect.

[0055] In order to facilitate the adjustment of the horizontal angle; Figure 1-3 As shown, a base 10 is arranged below the lower mounting frame 11, a driving motor 12 is installed on the base 10, the output end of the driving motor 12 is transmission-connected with a driving gear 13, an annular gear rack 14 is rotatably installed on the top of the base 10, the annular gear rack 14 is meshed with the driving gear 13, and the top of the annular gear rack 14 is fixed to the outer wall of the bottom of the lower mounting frame 11; a plurality of light sensors are arranged on the outside of the base 10, a control module is arranged inside the base 10, the light sensor and the driving motor 12 are connected with the control module signal, and the control module controls the driving motor 12 to work based on the signal transmitted by the light sensor;

[0056] By providing structures such as the annular gear rack 14 and the drive motor 12, the drive motor 12 can be controlled to work according to the actual situation based on the signal transmitted by the light sensor, thereby moving the heat collecting frame 1 to the side with stronger light, thereby improving the heat collecting effect.

[0057] Embodiment 2:

[0058] A plateau solar thermal collector, such as Figure 1-6 As shown, in order to facilitate cleaning of the structure surface; this embodiment makes the following improvements on the basis of embodiment 1: a cleaning structure is installed on the heat collecting frame 1, and the cleaning structure includes:

[0059] A water collecting box 18, which is arranged above the top of the heat collecting frame 1;

[0060] A water outlet pipe, which is arranged on the outer wall of one side of the water collecting box 18;

[0061] By providing structures such as the water collecting box 18, rainwater can be collected by the water collecting box 18 and output to the heat collecting tube 2 through the water outlet pipe for flushing and cleaning, thereby improving practicality.

[0062] To improve practicality; Figure 5 As shown, a sieve plate 17 is installed on the top of the water collecting box 18, and a plurality of sieve holes are arranged on the sieve plate 17. The sieve plate 17 is in an inverted V-shaped structure. Waste discharge ports are opened on both sides of the water collecting box 18, and the positions of the waste discharge ports are adapted to the positions of the two ends of the sieve plate 17.

[0063] To improve the cleaning effect; Figure 4 , Figure 5 As shown, a plurality of brush rods 30 are installed at the bottom of the water collecting box 18, and the brush rods 30 are located in the gaps between adjacent heat collecting tubes 2. The outer side of the brush rods 30 is provided with circumferentially distributed elastic brush heads 29;

[0064] Guide frames 22 are installed on both sides of the heat collecting frame 1, and slide bars 19 are installed on both sides of the water collecting box 18. The outer side of the guide frame 22 is slidably connected to the slide 21, and a sleeve 26 is fixed on the top of the slide 21. The slide bar 19 slides horizontally on the inner wall of the sleeve 26;

[0065] An elastic sleeve 3 is fixed to the outside of one end of the guide frame 22, and one end of the elastic sleeve 3 is fixed to the slide 21. The elastic sleeve 3 is located outside the guide frame 22, and a corrugated structure that is easy to compress and stretch is provided on the elastic sleeve 3.

[0066] The heat collecting frame 1 is provided with an upper magnetic block 27, and the slide frame 21 is provided with a magnetic member 20, and the magnetic member 20 is attracted to the upper magnetic block 27;

[0067] By providing structures such as an elastic brush head 29, when there is too much water in the water collecting box 18, the slide 21 can slide down along the guide frame 22 after overcoming the magnetic attraction of the upper magnetic block 27 and the magnetic component 20 based on gravity. During the process, the elastic brush head 29 is used to clean the surface of the heat collecting tube 2, thereby improving practicality. Since a magnetic attraction structure is provided to store force, when overcoming the magnetic attraction and moving downward, the movement range of the structure is guaranteed, thereby improving reliability.

[0068] In order to facilitate the discharge of water; Figure 4 , Figure 6As shown, a drain pipe 32 is provided on one side of the water collecting box 18, and a sealing plug 31 is movably installed on the inner side of the drain pipe 32 through a spring. The sealing plug 31 is a truncated cone structure adapted to the inner wall of the drain pipe 32, and the maximum diameter of the sealing plug 31 is smaller than the maximum inner diameter of the drain pipe 32;

[0069] The heat collecting frame 1 is provided with a top frame 23, which is located on the movement path of the drain pipe 32; mounting plates 15 are installed on both sides of the heat collecting frame 1, and lower magnetic blocks 16 are installed on the mounting plates 15, and the lower magnetic blocks 16 are attracted to the magnetic element 20;

[0070] By providing structures such as the top frame 23 and the lower magnetic block 16, when the water collecting box 18 slides down, the lower magnetic block 16 can be used to attract the magnetic component 20. At the same time, one end of the top frame 23 is inserted into the drain pipe 32, and the sealing plug 31 is pushed open, so that the drain pipe 32 is connected and the water can be discharged from the drain pipe 32. After being discharged to a certain extent, the rebound force of the elastic sleeve 3 overcomes the magnetic attraction of the lower magnetic block 16 and the magnetic component 20, and drives the water collecting box 18 to reset.

[0071] To improve fluency; Figure 5 As shown, a plurality of slideways 25 are installed at the bottom of the heat collecting frame 1, and a sliding ball 24 is fixed at the bottom end of the brush rod 30. The sliding ball 24 slides on the inner wall of the slideway 25, and the shape of the slideway 25 is adapted to the shape of the gap between two adjacent heat collecting tubes 2;

[0072] By providing structures such as the sliding ball 24, when the water collecting box 18 slides downward, the sliding track 25 can be used to guide the sliding ball 24, thereby ensuring that the structure slides down smoothly and improving reliability.

[0073] Embodiment 3:

[0074] A plateau solar thermal collector, such as Figure 1-6 As shown, in order to improve the cleaning effect; this embodiment makes the following improvements on the basis of embodiment 2: a spherical drainage head 28 is provided at the end of the water outlet pipe of the water collecting box 18, an opening is provided at the bottom of the spherical drainage head 28, a blocking ball 33 is provided in the spherical drainage head 28, the diameter of the blocking ball 33 is larger than the inner diameter of the opening, and the radius of the spherical drainage head 28 is larger than the radius of the blocking ball 33;

[0075] By setting up structures such as the spherical drain head 28 and the sealing ball 33, the opening of the spherical drain head 28 can be sealed by the sealing ball 33 in a non-moving state, thereby achieving the effect of storing water. When the water reaches a certain amount, based on the sliding down of the water collecting box 18, since the sliding ball 24 has an S-shaped structure that matches the spacing between the heat collecting tubes 2, during the movement, due to the left and right shaking, the sealing ball 33 is separated from the opening of the spherical drain head 28, so that during the entire movement process, the water can be sprinkled on the surface of the heat collecting tube 2, thereby improving the cleaning effect.

[0076] To improve the cleaning effect; Figure 6 As shown, the brush rod 30 is hollow inside, and micropores are provided on the elastic brush head 29, and the micropores are connected to the water collecting box 18 based on the inside of the brush rod 30;

[0077] By providing an elastic brush head 29 with micropores, the cleaning effect can be further improved.

[0078] The above description is only a preferred specific implementation manner of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can make equivalent replacements or changes according to the technical scheme and inventive concept of the present invention within the technical scope disclosed by the present invention, which should be covered by the protection scope of the present invention.

Claims

1. A plateau solar thermal collector, characterized in that: include: A heat collecting frame (1), wherein a plurality of heat collecting tubes (2) distributed at equal intervals are installed on the heat collecting frame (1), a plurality of spherical protrusions (4) are arranged on the heat collecting tubes (2), and the spherical protrusions (4) of adjacent heat collecting tubes (2) are arranged in a staggered manner; An upper mounting frame (5), on which the heat collecting frame (1) is mounted; A lower mounting frame (11), a shaft is fixed on the lower mounting frame (11), and the upper mounting frame (5) is rotatably mounted on the shaft of the lower mounting frame (11); A first heat transfer plate (7), the first heat transfer plate (7) is mounted on the shaft of the lower mounting frame (11) through a first bracket, the first bracket is hollow inside, the first bracket is connected to a first elastic bag (9) through a first transmission pipe, the top of the first elastic bag (9) is fixed on the upper mounting frame (5), and the bottom of the first elastic bag (9) is fixed on the lower mounting frame (11); A second heat transfer plate (8), the second heat transfer plate (8) is mounted on the shaft of the lower mounting frame (11) via a second bracket, the second bracket is hollow inside, the second bracket is connected to a second elastic bag (6) via a second transmission pipe, the top of the second elastic bag (6) is fixed on the upper mounting frame (5), and the bottom of the second elastic bag (6) is fixed on the lower mounting frame (11); The angle between the first heat transfer plate (7) and the horizontal plane is smaller than the angle between the second heat transfer plate (8) and the horizontal plane, the first elastic bag (9) is located on one side of the axis of the lower mounting frame (11) close to the bottom end of the heat collecting frame (1), and the second elastic bag (6) is located on the other side of the axis of the lower mounting frame (11).

2. A plateau solar thermal collector according to claim 1, characterized in that: A base (10) is arranged below the lower mounting frame (11), a driving motor (12) is mounted on the base (10), an output end of the driving motor (12) is drivingly connected to a driving gear (13), an annular gear rack (14) is rotatably mounted on the top of the base (10), the annular gear rack (14) is meshed with the driving gear (13), and the top of the annular gear rack (14) is fixed to the bottom outer wall of the lower mounting frame (11); a plurality of light sensors are arranged on the outside of the base (10), a control module is arranged inside the base (10), the light sensors and the driving motor (12) are connected to the control module by signal, and the control module controls the driving motor (12) to work based on the signal transmitted by the light sensor.

3. A plateau solar thermal collector according to claim 2, characterized in that: A cleaning structure is installed on the heat collecting frame (1), and the cleaning structure comprises: A water collecting box (18), the water collecting box (18) is arranged above the top of the heat collecting frame (1); A water outlet pipe is arranged on an outer wall of one side of the water collecting box (18).

4. A plateau solar thermal collector according to claim 3, characterized in that: A sieve plate (17) is installed on the top of the water collecting box (18), and a plurality of sieve holes are arranged on the sieve plate (17). Waste discharge ports are opened on both sides of the water collecting box (18), and the positions of the waste discharge ports are adapted to the positions of the two ends of the sieve plate (17).

5. A plateau solar thermal collector according to claim 4, characterized in that: The sieve plate (17) is in an inverted V-shaped structure.

6. A plateau solar thermal collector according to claim 3, characterized in that: A plurality of brush rods (30) are installed at the bottom of the water collecting box (18), the brush rods (30) are located in the gaps between adjacent heat collecting tubes (2), and elastic brush heads (29) distributed circumferentially are arranged on the outside of the brush rods (30); Guide frames (22) are installed on both sides of the heat collecting frame (1), slide bars (19) are installed on both sides of the water collecting box (18), the outer side of the guide frame (22) is slidably connected to a slide bar (21), a sleeve (26) is fixed on the top of the slide bar (21), and the slide bar (19) slides transversely on the inner wall of the sleeve (26); An elastic sleeve (3) is fixed to the outside of one end of the guide frame (22), one end of the elastic sleeve (3) is fixed to the slide frame (21), the elastic sleeve (3) is located outside the guide frame (22), and a corrugated structure that is easy to compress and stretch is provided on the elastic sleeve (3); An upper magnetic block (27) is installed on the heat collecting frame (1), and a magnetic member (20) is installed on the slide frame (21), and the magnetic member (20) attracts the upper magnetic block (27).

7. A plateau solar thermal collector according to claim 6, characterized in that: A drainage pipe (32) is arranged on one side of the water collecting box (18), and a sealing plug (31) is movably installed on the inner side of the drainage pipe (32) via a spring, the sealing plug (31) is in a truncated cone-shaped structure adapted to the inner wall of the drainage pipe (32), and the maximum diameter of the sealing plug (31) is smaller than the maximum inner diameter of the drainage pipe (32); The heat collecting frame (1) is provided with a top frame (23), and the top frame (23) is located on the movement path of the drainage pipe (32); mounting plates (15) are installed on both sides of the heat collecting frame (1), and lower magnetic blocks (16) are installed on the mounting plates (15), and the lower magnetic blocks (16) are attracted to the magnetic element (20).

8. A plateau solar thermal collector according to claim 7, characterized in that: A plurality of slideways (25) are installed at the bottom of the heat collecting frame (1), a slide ball (24) is fixed at the bottom end of the brush rod (30), the slide ball (24) slides on the inner wall of the slideway (25), and the shape of the slideway (25) is adapted to the shape of the gap between two adjacent heat collecting tubes (2).

9. A plateau solar thermal collector according to claim 8, characterized in that: A spherical drainage head (28) is provided at the end of the water outlet pipe of the water collecting box (18), an opening is provided at the bottom of the spherical drainage head (28), a sealing ball (33) is provided inside the spherical drainage head (28), the diameter of the sealing ball (33) is larger than the inner diameter of the opening, and the radius of the spherical drainage head (28) is larger than the radius of the sealing ball (33).

10. A plateau solar thermal collector according to claim 6, characterized in that: The brush rod (30) is hollow inside, and micropores are provided on the elastic brush head (29), and the micropores are connected to the water collection box (18) based on the inside of the brush rod (30).

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