Heat absorber sealing structure assembly

Abstract

The heat absorber sealing structure assembly comprises an upper heat preservation sealing collection box, a lower heat preservation sealing collection box is arranged below the upper heat preservation sealing collection box, the upper heat preservation sealing collection box comprises a front side wall side plate and a rear side wall side plate which are arranged side by side, and the plate faces of the front side wall side plate and the rear side wall side plate are located in the vertical direction; a top cover plate is arranged at the top of the front side wall side plate and the top of the rear side wall side plate, the top end of the side wall side plate is tightly connected with the front side edge of the top cover plate through a multi-stage step or a labyrinth structure, and the top end of the rear side wall side plate is tightly connected with the front side edge of the top cover plate through a multi-stage step or a labyrinth structure. The heat absorber sealing structure assembly can effectively reduce heat dissipation loss, improve the generating capacity, limit movement of a heat absorption pipe and play a good role in positioning the heat absorption pipe.

Description

Technical Field

[0001] The present invention relates to the field of solar thermal power generation, and in particular to a heat absorber sealing structure component in the field of molten salt heat storage and heating technology. Background Art

[0002] The absorber of a tower-type solar thermal power plant is a key component of the plant. The quality of its sealing performance directly impacts the amount of power generated, and therefore the effectiveness of its sealing structure directly impacts the plant's profitability. Therefore, resolving the absorber's sealing issues is crucial for achieving good returns. The absorber can be divided into two types: external tube absorbers and volumetric cavity absorbers. In the external tube absorber, the heating surface is arranged in a ring, forming a cylindrical tube panel that receives sunlight reflected and concentrated by heliostats located 360° around the tower. Because the absorber plays a crucial role in absorbing solar energy, it operates at high temperatures and must withstand significant temperature fluctuations. Therefore, ensuring minimal heat loss and stable temperatures has always been a challenge in absorber insulation design. Poor insulation sealing at the upper and lower headers of the absorber can significantly affect the temperature of the molten salt within the tube panels, reducing power generation. The absorber sealing structure assembly of the present invention effectively addresses this challenge. Summary of the Invention

[0003] The purpose of the present invention is to provide a heat absorber sealing structure component that can effectively reduce heat dissipation loss, increase power generation, limit the movement of heat absorber tubes, and also play a good positioning role for solar tube panel heat absorber tubes.

[0004] The heat absorber sealing structure assembly of the present invention includes an upper thermal insulation sealing header, a lower thermal insulation sealing header is provided below the upper thermal insulation sealing header, the upper thermal insulation sealing header includes a front side wall panel and a rear side wall panel arranged in parallel, the plate surfaces of the front side wall panel and the rear side wall panel are respectively located in the vertical direction, the top of the front side wall panel and the top of the rear side wall panel are provided with a top cover panel, the top of the side wall panel is tightly connected to the front side of the top cover panel via multiple steps or a maze structure, and the top of the rear side wall panel is tightly connected to the front side of the top cover panel via multiple steps or a maze structure;

[0005] The lower thermal insulation and sealed header comprises a front side panel and a rear side panel with rectangular cross sections, the panel surfaces of the front side panel and the rear side panel are respectively located in the vertical direction, the top of the front side panel and the top of the rear side panel are provided with a bottom panel, the bottom end of the front side panel is closely connected to the front side of the bottom panel via multiple steps or a maze structure, and the bottom end of the rear side panel is closely connected to the front side of the bottom panel via multiple steps or a maze structure;

[0006] A plurality of solar tube panel heat absorbing tubes are arranged in parallel between the upper heat-insulating sealed header and the lower heat-insulating sealed header, and each solar tube panel heat absorbing tube is arranged in a vertical direction. The upper portion of each solar tube panel heat absorbing tube is located in the upper heat-insulating sealed header, and the lower portion of each solar tube panel heat absorbing tube is located in the lower heat-insulating sealed header.

[0007] The lower end of the front side wall side plate is tightly connected to the front end of the upper front sealing block through multiple steps or a maze structure, and the lower end of the rear side wall side plate is tightly connected to the rear end of the upper rear sealing block through multiple steps or a maze structure. The lower part of the rear surface of the upper front sealing block is in contact with the front surface of the upper rear sealing block. A plurality of upper through holes are arranged in parallel along the vertical direction between the rear surface of the upper front sealing block and the front surface of the upper rear sealing block. The upper part of the solar tube screen heat absorption tube is inserted into the upper through holes. The plurality of upper through holes form a plurality of upper front semicircular grooves spaced apart on the rear surface of the upper front sealing block, and the plurality of upper through holes form a plurality of upper rear semicircular grooves spaced apart on the front surface of the upper rear sealing block.

[0008] The lower end of the front side panel is tightly connected to the front end of the lower front sealing block through multiple steps or a maze structure, and the lower end of the rear side panel is tightly connected to the rear end of the lower rear sealing block through multiple steps or a maze structure. The lower part of the rear surface of the lower front sealing block is in contact with the front surface of the lower rear sealing block. A plurality of lower through holes are arranged in parallel along the vertical direction between the rear surface of the lower front sealing block and the front surface of the lower rear sealing block. The lower part of the solar tube screen heat absorption tube is inserted into the lower through hole. The plurality of lower through holes form a plurality of lower front semicircular grooves spaced apart on the rear surface of the lower front sealing block, and the plurality of lower through holes form a plurality of lower rear semicircular grooves spaced apart on the front surface of the lower rear sealing block.

[0009] Preferably, a plurality of upper metal sealing tooth pins are provided from top to bottom between the upper front sealing end surfaces on both sides of each upper front semicircular groove and the upper rear sealing end surfaces on both sides of each upper rear semicircular groove, and the plurality of upper metal sealing tooth pins are arranged along the front-to-back horizontal direction, and the front half of each upper metal sealing tooth pin is inserted into the upper front sealing end surface of the upper front sealing block, and the rear half of each upper metal sealing tooth pin is inserted into the upper rear sealing end surface of the upper rear sealing block;

[0010] A plurality of lower metal sealing tooth pins are provided from top to bottom between the lower front sealing end surfaces on both sides of each lower front semicircular groove and the lower rear sealing end surfaces on both sides of each lower rear semicircular groove. The plurality of lower metal sealing tooth pins are arranged along the front and rear horizontal directions. The front half of each lower metal sealing tooth pin is inserted into the lower front sealing end surface of the lower front sealing block, and the rear half of each lower metal sealing tooth pin is inserted into the lower rear sealing end surface of the lower rear sealing block.

[0011] Preferably, the upper part of the rear surface of the upper front sealing block is in contact with the front surface of the spring sealing block, and the upper part of the solar tube screen heat absorption tube is clamped between the spring sealing block and the upper rear sealing block. A positioning block is provided behind the spring sealing block, and the positioning block is fixedly connected to the front side wall plate. A compression spring is provided between the spring sealing block and the positioning block, and the front end of the compression spring is pressed against the spring sealing block, and the rear end of the compression spring is pressed against the positioning block.

[0012] Preferably, the front side wall edge panel, top cover panel, side panel, bottom panel, upper front sealing block, upper rear sealing block, lower front sealing block and lower rear sealing block are respectively made of thermal insulation materials, the panel surface of the top cover panel is located in the horizontal direction, and the panel surface of the bottom panel is located in the horizontal direction.

[0013] Preferably, the upper front sealing block, the upper rear sealing block, the lower front sealing block and the lower rear sealing block are respectively made of hard heat-insulating materials, and the upper metal sealing pins and the lower metal sealing pins are respectively made of steel.

[0014] Preferably, the thickness of the upper front sealing block along the front-to-back horizontal direction is 100mm-500mm, the thickness of the upper rear sealing block along the front-to-back horizontal direction is 100mm-500mm, the thickness of the lower front sealing block along the front-to-back horizontal direction is 100mm-500mm, the thickness of the lower rear sealing block along the front-to-back horizontal direction is 100mm-500mm, the length of the metal sealing tooth pin is 80mm-200mm, and the diameters of the upper metal sealing tooth pin and the lower metal sealing tooth pin are 1mm-5mm respectively.

[0015] Preferably, the upper front sealing block, the upper rear sealing block, the lower front sealing block and the lower rear sealing block have rectangular cross-sections along the horizontal direction.

[0016] Preferably, the number of the upper metal sealing pins and the lower metal sealing pins is 8-30.

[0017] The heat absorber sealing structure assembly of the present invention has an upper heat-insulating sealing header comprising a front side wall panel and a rear side wall panel arranged in parallel, the panel surfaces of the front side wall panel and the rear side wall panel being respectively located in a vertical direction, a top cover panel being provided on the top of the front side wall panel and the top of the rear side wall panel, the top end of the side wall panel being closely connected to the front side of the top cover panel via multiple steps or a labyrinth structure, and the top end of the rear side wall panel being closely connected to the front side of the top cover panel via multiple steps or a labyrinth structure;

[0018] The lower thermal insulation sealed header comprises a front side panel and a rear side panel with a rectangular cross section, the plate surfaces of the front side panel and the rear side panel are respectively located in the vertical direction, the top of the front side panel and the top of the rear side panel are provided with a bottom panel, the bottom end of the front side panel is tightly connected to the front side of the bottom panel through multiple steps or a maze structure, and the bottom end of the rear side panel is tightly connected to the front side of the bottom panel through multiple steps or a maze structure; a plurality of solar tube screen heat absorbing tubes are arranged in parallel between the upper thermal insulation sealed header and the lower thermal insulation sealed header, each The solar tube panel heat absorbing tubes are arranged in the vertical direction respectively, the upper part of each solar tube panel heat absorbing tube is respectively located in the upper thermal insulation sealed header, and the lower part of each solar tube panel heat absorbing tube is respectively located in the lower thermal insulation sealed header; the lower end of the front side wall side plate is tightly connected to the front end of the upper front sealing block through multiple steps or a maze structure, the lower end of the rear side wall side plate is tightly connected to the rear end of the upper rear sealing block through multiple steps or a maze structure, the lower part of the rear surface of the upper front sealing block is in contact with the front surface of the upper rear sealing block, and the upper A plurality of upper through holes are arranged in parallel along the vertical direction between the rear surface of the front sealing block and the front surface of the upper rear sealing block. The upper part of the solar tube screen heat absorbing tube is inserted into the upper through holes. The plurality of upper through holes form a plurality of upper front semicircular grooves spaced apart on the rear surface of the upper front sealing block, and the plurality of upper through holes form a plurality of upper rear semicircular grooves spaced apart on the front surface of the upper rear sealing block; the lower end of the front side plate is tightly connected to the front end of the lower front sealing block through a multi-step or maze structure, and the lower end of the rear side plate is connected to the lower rear sealing block. The rear ends of the blocks are tightly connected via multiple steps or a labyrinthine structure. The lower portion of the rear surface of the lower front sealing block is in contact with the front surface of the lower rear sealing block. Multiple lower through holes are vertically arranged side by side between the rear surface of the lower front sealing block and the front surface of the lower rear sealing block. The lower portions of the solar tube panel heat absorbing tubes are inserted into the lower through holes. The multiple lower through holes form multiple spaced lower front semicircular grooves on the rear surface of the lower front sealing block, and the multiple lower through holes form multiple spaced lower rear semicircular grooves on the front surface of the lower rear sealing block. Therefore, the heat absorber sealing structure assembly of the present invention has the characteristics of effectively reducing heat loss, increasing power generation, limiting the movement of the heat absorbing tubes, and effectively positioning the solar tube panel heat absorbing tubes.

[0019] The present invention is described in detail below with reference to the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 This is a front view of the heat absorber sealing structure assembly of the present invention;

[0021] Figure 2 1. It is a cross-sectional view taken along line A-A of the upper front sealing block and the upper rear sealing block of the heat absorber sealing structure assembly of the present invention;

[0022] Figure 3 for Figure 2 A schematic diagram of the structure after the upper front sealing block and the upper rear sealing block are partially decomposed;

[0023] Figure 4 BB cross-sectional view of the lower front sealing block and the lower rear sealing block of the heat absorber sealing structure assembly of the present invention;

[0024] Figure 5 for Figure 4 Schematic diagram of the structure after the lower front sealing block and the lower rear sealing block are partially decomposed. DETAILED DESCRIPTION

[0025] like Figure 1 and Figure 2 As shown, the heat absorber sealing structure assembly of the present invention includes an upper thermal insulation sealing header, a lower thermal insulation sealing header is provided below the upper thermal insulation sealing header, the upper thermal insulation sealing header includes a front side wall panel 20 and a rear side wall panel 30 arranged in parallel, the plate surfaces of the front side wall panel 20 and the rear side wall panel 30 are respectively located in the vertical direction, the top of the front side wall panel 20 and the top of the rear side wall panel 30 are provided with a top cover panel 21, the top end of the side wall panel 20 and the front side of the top cover panel 21 are tightly connected by multiple steps or a maze structure, and the top end of the rear side wall panel 30 and the front side of the top cover panel 21 are tightly connected by multiple steps or a maze structure;

[0026] The lower heat-insulating sealed header includes a front side panel 22 and a rear side panel 32 with rectangular cross sections. The plate surfaces of the front side panel 22 and the rear side panel 32 are respectively located in the vertical direction. The top of the front side panel 22 and the top of the rear side panel 32 are provided with a bottom panel 23. The bottom end of the front side panel 22 is tightly connected to the front side of the bottom panel 23 through multiple steps or a maze structure. The bottom end of the rear side panel 32 is tightly connected to the front side of the bottom panel 23 through multiple steps or a maze structure.

[0027] A plurality of solar tube panel heat absorbing tubes 4 are arranged in parallel between the upper heat-insulating sealed header and the lower heat-insulating sealed header. Each solar tube panel heat absorbing tube 4 is arranged in a vertical direction. The upper portion of each solar tube panel heat absorbing tube 4 is located in the upper heat-insulating sealed header, and the lower portion of each solar tube panel heat absorbing tube 4 is located in the lower heat-insulating sealed header.

[0028] The lower end of the front side wall side plate 20 is tightly connected to the front end of the upper front sealing block 1 through a multi-step step or a maze structure, and the lower end of the rear side wall side plate 30 is tightly connected to the rear end of the upper rear sealing block 2 through a multi-step step or a maze structure. The lower part of the rear surface of the upper front sealing block 1 is in contact with the front surface of the upper rear sealing block 2. A plurality of upper through holes 3 are arranged in parallel along the vertical direction between the rear surface of the upper front sealing block 1 and the front surface of the upper rear sealing block 2. The upper part of the solar tube panel heat absorption tube 4 is inserted into the upper through holes 3. The plurality of upper through holes 3 form a plurality of upper front semicircular grooves 5 spaced apart on the rear surface of the upper front sealing block 1, and the plurality of upper through holes 3 form a plurality of upper rear semicircular grooves 8 spaced apart on the front surface of the upper rear sealing block 2.

[0029] The lower end of the front side panel 22 is tightly connected to the front end of the lower front sealing block 11 through multiple steps or a maze structure, and the lower end of the rear side panel 32 is tightly connected to the rear end of the lower rear sealing block 12 through multiple steps or a maze structure. The lower part of the rear surface of the lower front sealing block 11 is in contact with the front surface of the lower rear sealing block 12, and a plurality of lower through holes 13 are arranged in parallel along the vertical direction between the rear surface of the lower front sealing block 11 and the front surface of the lower rear sealing block 12. The lower part of the solar tube screen heat absorption tube 4 is inserted into the lower through hole 13, and the plurality of lower through holes 13 form a plurality of lower front semicircular grooves 15 spaced apart on the rear surface of the lower front sealing block 11, and the plurality of lower through holes 13 form a plurality of lower rear semicircular grooves 18 spaced apart on the front surface of the lower rear sealing block 12.

[0030] As a further improvement of the present invention, a plurality of upper metal sealing tooth pins 6 are provided from top to bottom between the upper front sealing end surfaces 7 on both sides of each of the upper front semicircular grooves 5 and the upper rear sealing end surfaces 9 on both sides of each upper rear semicircular groove 8. The plurality of upper metal sealing tooth pins 6 are arranged along the front and rear horizontal directions. The front half of each upper metal sealing tooth pin 6 is inserted into the upper front sealing end surface 7 of the upper front sealing block 1, and the rear half of each upper metal sealing tooth pin 6 is inserted into the upper rear sealing end surface 9 of the upper rear sealing block 2.

[0031] A plurality of lower metal sealing tooth pins 16 are arranged from top to bottom between the lower front sealing end faces 17 on both sides of each lower front semicircular groove 15 and the lower rear sealing end faces 19 on both sides of each lower rear semicircular groove 18. The plurality of lower metal sealing tooth pins 16 are arranged along the front and rear horizontal directions. The front half of each lower metal sealing tooth pin 16 is inserted into the lower front sealing end face 17 of the lower front sealing block 11, and the rear half of each lower metal sealing tooth pin 16 is inserted into the lower rear sealing end face 19 of the lower rear sealing block 12.

[0032] As a further improvement of the present invention, the upper part of the rear surface of the above-mentioned upper front sealing block 1 is in contact with the front surface of the spring sealing block 24, and the upper part of the solar tube screen heat absorption tube 4 is clamped between the spring sealing block 24 and the upper rear sealing block 2. A positioning block 25 is provided behind the spring sealing block 24, and the positioning block 25 is fixedly connected to the front side wall plate 20. A compression spring 26 is provided between the spring sealing block 24 and the positioning block 25, and the front end of the compression spring 26 is pressed against the spring sealing block 24, and the rear end of the compression spring 26 is pressed against the positioning block 25.

[0033] The upper part of the rear surface of the above-mentioned upper front sealing block 1 is in contact with the front surface of the spring sealing block 24, and the upper part of the solar tube panel heat absorption tube 4 is clamped between the spring sealing block 24 and the upper rear sealing block 2. A positioning block 25 is provided behind the spring sealing block 24, and the positioning block 25 is fixedly connected to the front side wall plate 20. A compression spring 26 is provided between the spring sealing block 24 and the positioning block 25. The front end of the compression spring 26 is pressed against the spring sealing block 24, and the rear end of the compression spring 26 is pressed against the positioning block 25. This design can effectively limit the movement of the heat absorption tube and can play a good positioning role for the solar tube panel heat absorption tube 2.

[0034] As a further improvement of the present invention, the above-mentioned front side wall edge panel 20, top cover panel 21, side panel 22, bottom panel 23, upper front sealing block 1, upper rear sealing block 2, lower front sealing block 11 and lower rear sealing block 12 are respectively made of thermal insulation materials, and the plate surface of the top cover panel 21 is located in the horizontal direction, and the plate surface of the bottom panel 23 is located in the horizontal direction.

[0035] As a further improvement of the present invention, the upper front sealing block 1, the upper rear sealing block 2, the lower front sealing block 11 and the lower rear sealing block 12 are respectively made of hard insulation materials, and the upper metal sealing tooth pin 6 and the lower metal sealing tooth pin 16 are respectively made of steel.

[0036] As a further improvement of the present invention, the thickness of the above-mentioned upper front sealing block 1 along the front-to-back horizontal direction is 100mm-500mm, the thickness of the upper rear sealing block 2 along the front-to-back horizontal direction is 100mm-500mm, the thickness of the lower front sealing block 11 along the front-to-back horizontal direction is 100mm-500mm, and the thickness of the lower rear sealing block 12 along the front-to-back horizontal direction is 100mm-500mm. The length of the metal sealing tooth pin 6 is 80mm-200mm, and the diameters of the upper metal sealing tooth pin 6 and the lower metal sealing tooth pin 16 are 1mm-5mm respectively.

[0037] As a further improvement of the present invention, the upper front sealing block 1, the upper rear sealing block 2, the lower front sealing block 11 and the lower rear sealing block 12 have rectangular cross sections along the horizontal direction.

[0038] As a further improvement of the present invention, the number of the upper metal sealing pins 6 and the lower metal sealing pins 16 is 8-30.

[0039] The heat absorber sealing structure assembly of the present invention includes an upper thermal insulation sealing header, a lower thermal insulation sealing header is provided below the upper thermal insulation sealing header, the upper thermal insulation sealing header includes a front side wall panel 20 and a rear side wall panel 30 arranged in parallel, the plate surfaces of the front side wall panel 20 and the rear side wall panel 30 are respectively located in the vertical direction, the top of the front side wall panel 20 and the top of the rear side wall panel 30 are provided with a top cover panel 21, the top of the side wall panel 20 is tightly connected to the front side of the top cover panel 21 through multiple steps or a maze structure, and the rear side wall panel 30 is provided with a top cover panel 21. The top end is tightly connected to the front side of the top cover plate 21 by multiple steps or a maze structure; the lower thermal insulation sealed header includes a front side panel 22 and a rear side panel 32 with a rectangular cross section, the plate surfaces of the front side panel 22 and the rear side panel 32 are respectively located in the vertical direction, the top of the front side panel 22 and the top of the rear side panel 32 are provided with a bottom panel 23, the bottom end of the front side panel 22 is tightly connected to the front side of the bottom panel 23 by multiple steps or a maze structure, and the bottom end of the rear side panel 32 is tightly connected to the front side of the bottom panel 23 by multiple steps or a maze structure. The upper heat-insulating sealed header and the lower heat-insulating sealed header are connected in parallel; a plurality of solar tube panel heat-absorbing tubes 4 are arranged in parallel between the upper heat-insulating sealed header and the lower heat-insulating sealed header, and each solar tube panel heat-absorbing tube 4 is arranged in the vertical direction. The upper part of each solar tube panel heat-absorbing tube 4 is respectively located in the upper heat-insulating sealed header, and the lower part of each solar tube panel heat-absorbing tube 4 is respectively located in the lower heat-insulating sealed header; the lower end of the front side wall side plate 20 is tightly connected to the front end of the upper front sealing block 1 through a multi-step or labyrinth structure, and the lower end of the rear side wall side plate 30 is connected to the rear end of the upper rear sealing block 2 They are tightly connected by multiple steps or a labyrinth structure, the lower part of the rear surface of the upper front sealing block 1 is in contact with the front surface of the upper rear sealing block 2, and a plurality of upper through holes 3 are arranged in parallel along the vertical direction between the rear surface of the upper front sealing block 1 and the front surface of the upper rear sealing block 2. The upper part of the solar tube panel heat absorption tube 4 is inserted into the upper through holes 3, and the plurality of upper through holes 3 form a plurality of upper front semicircular grooves 5 spaced apart on the rear surface of the upper front sealing block 1, and the plurality of upper through holes 3 form a plurality of upper rear semicircular grooves 8 spaced apart on the front surface of the upper rear sealing block 2;

[0040] The lower end of the front side panel 22 is tightly connected to the front end of the lower front sealing block 11 via multiple steps or a labyrinth structure, and the lower end of the rear side panel 32 is tightly connected to the rear end of the lower rear sealing block 12 via multiple steps or a labyrinth structure. The lower portion of the rear surface of the lower front sealing block 11 is in contact with the front surface of the lower rear sealing block 12. A plurality of lower through holes 13 are vertically arranged between the rear surface of the lower front sealing block 11 and the front surface of the lower rear sealing block 12. The lower portion of the solar tube panel heat absorbing tube 4 is inserted into the lower through holes 13. The plurality of lower through holes 13 form a plurality of spaced lower front semicircular grooves 15 on the rear surface of the lower front sealing block 11, and the plurality of lower through holes 13 form a plurality of spaced lower rear semicircular grooves 18 on the front surface of the lower rear sealing block 12. Therefore, the absorber sealing structure assembly of the present invention has the characteristics of effectively reducing heat loss, increasing power generation, limiting the movement of the heat absorbing tube, and effectively positioning the solar tube panel heat absorbing tube 2.

[0041] The embodiments described above are merely descriptions of preferred implementations of the present invention and are not intended to limit the scope of the present invention. Without departing from the spirit of the present invention, various modifications and improvements made to the technical solutions of the present invention by ordinary engineers and technicians in this field should fall within the scope of protection determined by the claims of the present invention.

Claims

1. The heat absorber sealing structure assembly is characterized by: The invention comprises an upper heat-insulating sealed header, a lower heat-insulating sealed header is provided below the upper heat-insulating sealed header, the upper heat-insulating sealed header comprises a front side wall panel (20) and a rear side wall panel (30) arranged in parallel, the plate surfaces of the front side wall panel (20) and the rear side wall panel (30) are respectively located in the vertical direction, the top of the front side wall panel (20) and the top of the rear side wall panel (30) are provided with a top cover panel (21), the top of the side wall panel (20) and the front side of the top cover panel (21) are closely connected through multiple steps or a maze structure, and the top of the rear side wall panel (30) and the front side of the top cover panel (21) are closely connected through multiple steps or a maze structure; The lower heat-insulating sealed header comprises a front side panel (22) and a rear side panel (32) with a rectangular cross section, the panel surfaces of the front side panel (22) and the rear side panel (32) are respectively located in the vertical direction, the top of the front side panel (22) and the top of the rear side panel (32) are provided with a bottom panel (23), the bottom end of the front side panel (22) is closely connected to the front side of the bottom panel (23) through a multi-step or maze structure, and the bottom end of the rear side panel (32) is closely connected to the front side of the bottom panel (23) through a multi-step or maze structure; A plurality of solar tube panel heat absorbing tubes (4) are arranged in parallel between the upper heat-insulating sealed header and the lower heat-insulating sealed header, each solar tube panel heat absorbing tube (4) is arranged in a vertical direction, the upper portion of each solar tube panel heat absorbing tube (4) is located in the upper heat-insulating sealed header, and the lower portion of each solar tube panel heat absorbing tube (4) is located in the lower heat-insulating sealed header; The lower end of the front side wall edge plate (20) is tightly connected to the front end of the upper front sealing block (1) through a multi-step step or a labyrinth structure, and the lower end of the rear side wall edge plate (30) is tightly connected to the rear end of the upper rear sealing block (2) through a multi-step step or a labyrinth structure. The lower part of the rear surface of the upper front sealing block (1) is in contact with the front surface of the upper rear sealing block (2). A plurality of upper through holes (3) are arranged in parallel along the vertical direction between the rear surface of the upper front sealing block (1) and the front surface of the upper rear sealing block (2). The upper part of the solar tube screen heat absorption tube (4) is inserted into the upper through hole (3). The plurality of upper through holes (3) form a plurality of upper front semicircular grooves (5) spaced apart on the rear surface of the upper front sealing block (1), and the plurality of upper through holes (3) form a plurality of upper rear semicircular grooves (8) spaced apart on the front surface of the upper rear sealing block (2). The lower end of the front side plate (22) is tightly connected to the front end of the lower front sealing block (11) through multiple steps or a labyrinth structure, and the lower end of the rear side plate (32) is tightly connected to the rear end of the lower rear sealing block (12) through multiple steps or a labyrinth structure. The lower part of the rear surface of the lower front sealing block (11) is in contact with the front surface of the lower rear sealing block (12). A plurality of lower through holes (13) are arranged in parallel along the vertical direction between the rear surface of the lower front sealing block (11) and the front surface of the lower rear sealing block (12). The lower part of the solar tube screen heat absorption tube (4) is inserted into the lower through holes (13). The plurality of lower through holes (13) form a plurality of lower front semicircular grooves (15) spaced apart on the rear surface of the lower front sealing block (11), and the plurality of lower through holes (13) form a plurality of lower rear semicircular grooves (18) spaced apart on the front surface of the lower rear sealing block (12).

2. The heat absorber sealing structure assembly according to claim 1, wherein: A plurality of upper metal sealing pins (6) are provided from top to bottom between the upper front sealing end faces (7) on both sides of each upper front semicircular groove (5) and the upper rear sealing end faces (9) on both sides of each upper rear semicircular groove (8), and the plurality of upper metal sealing pins (6) are arranged along the front-to-back horizontal direction, the front half of each upper metal sealing pin (6) is inserted into the upper front sealing end face (7) of the upper front sealing block (1), and the rear half of each upper metal sealing pin (6) is inserted into the upper rear sealing end face (9) of the upper rear sealing block (2); A plurality of lower metal sealing pins (16) are provided from top to bottom between the lower front sealing end faces (17) on both sides of each lower front semicircular groove (15) and the lower rear sealing end faces (19) on both sides of each lower rear semicircular groove (18). The plurality of lower metal sealing pins (16) are arranged along the front-to-back horizontal direction. The front half of each lower metal sealing pin (16) is inserted into the lower front sealing end face (17) of the lower front sealing block (11), and the rear half of each lower metal sealing pin (16) is inserted into the lower rear sealing end face (19) of the lower rear sealing block (12).

3. The heat absorber sealing structure assembly according to claim 2, wherein: The upper portion of the rear surface of the upper front sealing block (1) is in contact with the front surface of the spring sealing block (24); the upper portion of the solar tube panel heat absorption tube (4) is clamped between the spring sealing block (24) and the upper rear sealing block (2); a positioning block (25) is provided behind the spring sealing block (24); the positioning block (25) is fixedly connected to the front side wall edge plate (20); a compression spring (26) is provided between the spring sealing block (24) and the positioning block (25); the front end of the compression spring (26) is pressed against the spring sealing block (24); and the rear end of the compression spring (26) is pressed against the positioning block (25).

4. The heat absorber sealing structure assembly according to claim 3, wherein: The front side wall edge plate (20), the top cover plate (21), the side edge plate (22), the bottom plate (23), the upper front sealing block (1), the upper rear sealing block (2), the lower front sealing block (11) and the lower rear sealing block (12) are respectively made of thermal insulation materials. The plate surface of the top cover plate (21) is located in the horizontal direction, and the plate surface of the bottom plate (23) is located in the horizontal direction.

5. The heat absorber sealing structure assembly according to claim 4, wherein: The upper front sealing block (1), the upper rear sealing block (2), the lower front sealing block (11) and the lower rear sealing block (12) are respectively made of hard heat-insulating materials, and the upper metal sealing tooth pin (6) and the lower metal sealing tooth pin (16) are respectively made of steel.

6. The heat absorber sealing structure assembly according to claim 5, wherein: The thickness of the upper front sealing block (1) along the front-back horizontal direction is 100mm-500mm, the thickness of the upper rear sealing block (2) along the front-back horizontal direction is 100mm-500mm, the thickness of the lower front sealing block (11) along the front-back horizontal direction is 100mm-500mm, and the thickness of the lower rear sealing block (12) along the front-back horizontal direction is 100mm-500mm. The length of the metal sealing tooth pin (6) is 80mm-200mm, and the diameters of the upper metal sealing tooth pin (6) and the lower metal sealing tooth pin (16) are 1mm-5mm respectively.

7. The heat absorber sealing structure assembly according to claim 6, wherein: The upper front sealing block (1), the upper rear sealing block (2), the lower front sealing block (11) and the lower rear sealing block (12) are respectively rectangular in cross-section along the horizontal direction.

8. The heat absorber sealing structure assembly according to claim 7, wherein: The number of the upper metal sealing tooth pins (6) and the lower metal sealing tooth pins (16) is 8-30.

Images