Thermal protection assembly and heat absorber

Abstract

The invention provides a thermal protection assembly and a heat absorber, the thermal protection assembly comprises a plurality of thermal protection plates which are mutually spliced, each thermal protection plate comprises a light reflection layer and a heat insulation layer, the light reflection layer is provided with a light reflection surface and a mounting surface which are oppositely arranged, and the heat insulation layer is located on one side of the mounting surface; the fixing part comprises a connecting piece and a locking piece, one end of the connecting piece is connected with the mounting surface, the other end of the connecting piece penetrates through the heat insulation layer, the locking piece is connected with the connecting piece in a matched mode, the heat insulation layer is located between the locking piece and the light reflecting layer, and the locking piece can press the heat insulation layer to the mounting surface. By means of the technical scheme, the problem that in the prior art, a high-temperature-resistant high-reflectivity coating is difficult to spray to the position, where the through hole is formed, of the light receiving face in a heat protection plate arranged on a heat absorber, and consequently the protection effect is poor can be solved.

Description

Technical Field

[0001] The present invention relates to the technical field of solar thermal utilization, and in particular, to a thermal protection component and a heat absorber. Background Art

[0002] In a tower-type solar thermal utilization system, the core component is a heat absorber, which is responsible for collecting and converting solar energy. The heat absorber as a whole presents a multi-prismatic structure. The heat absorber includes a plurality of heat absorption tube screens. Each tube screen is composed of a series of long straight metal heat absorption tubes arranged side by side. Both ends of the heat absorption tubes are respectively connected to the corresponding headers. However, in the process of the heat absorber receiving the sunlight reflected by the heliostats, since the distribution of light energy on the heat absorber is not uniform, but along the height direction, the energy flux density in the middle is the highest, and gradually decreases upward and downward. Coupled with the large number of heliostats and the limited accuracy of the mirror field control system, part of the sunlight will overflow to the upper and lower regions of the heat absorber, forming so-called overflow light spots. In order to protect the internal equipment of the heat absorber from being damaged by the overflow light spots, thermal protection plates need to be arranged on the upper and lower sides of the heat absorber to prevent the overflow light spots from directly irradiating the sensitive equipment in the tower.

[0003] The current thermal protection plate has a three-layer structure. The light-receiving surface is a thin metal plate, and this layer of plate is sprayed with a high-temperature and high-reflectivity coating. Then there is an adiabatic material, and the last layer is a thin metal plate on the back. Through holes are opened at the corresponding positions of the two thin metal plates, and the thermal protection plate is assembled by sequentially passing long bolts through the light-receiving surface thin metal plate, the adiabatic material layer, and the back thin metal plate. However, in the above solution, it is difficult to spray the high-temperature and high-reflectivity coating at the positions where the through holes are opened on the light-receiving surface thin metal plate, which affects the reflectivity of the light-receiving surface and results in a poor protection effect of the light-receiving surface thin metal plate. Summary of the Invention

[0004] The present invention provides a thermal protection component and a heat absorber to solve the problem in the prior art that it is difficult to spray the high-temperature and high-reflectivity coating at the positions where the through holes are opened on the light-receiving surface of the thermal protection plate on the heat absorber, resulting in a poor protection effect.

[0005] According to one aspect of the present invention, a thermal protection component is provided. The thermal protection component includes a plurality of thermally protective plates spliced with each other. Each thermally protective plate includes: a reflective layer and a heat insulation layer. The reflective layer has a reflective surface and a mounting surface arranged opposite to each other. The heat insulation layer is located on one side of the mounting surface; a fixing part, including a connecting piece and a locking piece. One end of the connecting piece is connected to the mounting surface, the other end of the connecting piece passes through the heat insulation layer, and the locking piece is cooperatively connected with the connecting piece. The heat insulation layer is located between the locking piece and the reflective layer, and the locking piece can press the heat insulation layer against the mounting surface.

[0006] Further, a mounting seat is arranged on the mounting surface of the reflective layer, and one end of the connecting piece close to the reflective layer is cooperatively connected with the mounting seat.

[0007] Furthermore, a waterproof part is also provided between two adjacent heat protection plates in the horizontal direction, and the waterproof part is used to prevent rainwater from entering the heat insulation layer through the splicing gap between two adjacent heat protection plates in the horizontal direction.

[0008] Furthermore, taking any two adjacent heat protection plates in the horizontal direction as the first characteristic heat protection plate and the second characteristic heat protection plate, taking the waterproof part arranged between the first characteristic heat protection plate and the second characteristic heat protection plate as the characteristic waterproof part, taking the combined reflective surface formed by the reflective surface of the first characteristic heat protection plate and the reflective surface of the second characteristic heat protection plate as the characteristic reflective surface, and taking the combined installation surface formed by the installation surface of the first characteristic heat protection plate and the installation surface of the second characteristic heat protection plate as the characteristic installation surface; the characteristic waterproof part is installed on the characteristic reflective surface or on the characteristic installation surface, the characteristic waterproof part extends in the vertical direction, and moreover, the characteristic waterproof part covers the reflective layer gap between the reflective layer in the first characteristic heat protection plate and the reflective layer in the second characteristic heat protection plate.

[0009] Furthermore, the characteristic waterproof part is detachably connected or abutted against at least one of the reflective layer in the first characteristic heat protection plate and the reflective layer in the second characteristic heat protection plate.

[0010] Furthermore, the characteristic waterproof part is installed on the characteristic installation surface, a first space is arranged between the reflective layer and the heat insulation layer in the first characteristic heat protection plate, a second space is arranged between the reflective layer and the heat insulation layer in the second characteristic heat protection plate, and the first space and the second space are combined to form an installation space for installing the characteristic waterproof part.

[0011] Furthermore, two adjacent waterproof parts in the vertical direction are in lap joint fit or plug-in fit, and the upper part of the waterproof part at the lower position is located on the backlight side of the lower part of the waterproof part at the upper position.

[0012] Furthermore, the characteristic waterproof part is a groove, the groove extends in the vertical direction, the groove has an opening, the extending direction of the opening is the same as the extending direction of the groove, the opening faces the reflective layer gap, the groove covers the reflective layer gap, and moreover, the width of the groove is greater than or equal to the width of the reflective layer gap.

[0013] Furthermore, two adjacent grooves in the vertical direction are in plug-in fit, and the bottom of the groove at the upper position is inserted into the top of the groove at the lower position.

[0014] Furthermore, the top or the bottom of the groove protrudes from the heat protection plate; the top of the groove has a flared section, and the flared section can be sleeved on the outer periphery of the groove arranged adjacent in the vertical direction; or, the bottom of the groove has a constricted section, and the constricted section can be inserted into the inside of the groove arranged adjacent in the vertical direction.

[0015] Further, the heat insulation layer abuts against the groove, and the abutting portion of the heat insulation layer and the groove has an installation concave surface. The structural contour of the installation concave surface is adapted to the structural contour of the groove. The installation concave surface of the heat insulation layer located on the first characteristic heat protection plate forms a first space, and the installation concave surface of the heat insulation layer located on the second characteristic heat protection plate forms a second space.

[0016] Further, the heat protection plate further includes an installation structure for hanging the heat protection plate on the installation rack.

[0017] Further, the installation structure includes a connecting section and an installation section connected in sequence. The connecting section is connected to the installation surface of the reflective layer, and the installation section protrudes from the side of the heat insulation layer away from the reflective layer. There is a notch on the side of the installation section away from the reflective layer, and the notch is detachably connected to the installation rack, and the notch can hang the heat protection plate on the installation rack.

[0018] Further, a stop portion is further provided at the opening of the notch to partially block the opening of the notch to prevent the installation rack from slipping out of the notch; the stop portion is fixedly connected or integrally formed with the installation section.

[0019] Further, the stop portion has a fixing hole, and the fixing hole cooperates with the installation rack through a fastener to fix the position of the installation rack in the notch.

[0020] Further, two adjacent reflective layers in the vertical direction are inserted and matched or overlapped, and the installation surface at the bottom of the upper reflective layer covers the outside of the reflective surface at the top of the lower reflective layer.

[0021] Further, the bottom of the reflective layer has a first bending section that bends away from the heat insulation layer; alternatively, the top of the reflective layer has a second bending section that bends towards the heat insulation layer.

[0022] According to another aspect of the present invention, a heat absorber is provided, including a heat absorber body and a heat protection component. The heat protection component is used to protect the non-light-receiving area in the heat absorber body, and the heat protection component is the heat protection component mentioned above.

[0023] Applying the technical solution of the present invention, one end of the connecting piece is connected to the installation surface, and the other end of the connecting piece penetrates through the heat insulation layer. The heat insulation layer is located between the locking piece and the reflective layer. The locking piece can press the heat insulation layer against the installation surface. In this way, there is no need to open holes on the reflective surface of the reflective layer, effectively avoiding the problem that it is difficult to spray the high-temperature resistant reflective coating at the hole openings of the reflective surface, maintaining the integrity of the surface of the reflective surface, thereby ensuring the high reflectivity of the reflective layer and improving the overall heat protection efficiency of the heat protection plate. Through the mutual cooperation of the connecting piece and the locking piece, the assembly process of the heat protection plate is also simplified. There is no need to accurately align multiple bolt holes between different plate layers. The connecting piece is directly connected to the reflective layer, and then the locking piece is used to adjust the tightness of the heat insulation layer, reducing the complexity of on-site assembly of the heat protection component and improving the assembly efficiency of the heat protection component. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The accompanying drawings forming a part of this application are used to provide a further understanding of the present invention. The schematic embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation to the present invention. In the drawings:

[0025] Figure 1 shows an exploded schematic view of the heat protection plate provided by the present invention;

[0026] Figure 2 shows Figure 1 a partial enlarged view of part A in

[0027] Figure 3 shows Figure 1 a partial enlarged view of part B in

[0028] Figure 4 shows Figure 1 a partial enlarged view of part C in

[0029] Figure 5 shows a side view of the heat protection plate provided by the present invention;

[0030] Figure 6 shows Figure 5 a partial enlarged view of part E in

[0031] Figure 7 shows a structural schematic view of the heat protection plate provided by the present invention;

[0032] Figure 8 shows a structural schematic view of the heat protection plate from one perspective provided by the present invention;

[0033] Figure 9 shows a structural schematic view of the heat protection component from one perspective provided by the present invention;

[0034] Figure 10 shows Figure 9Partial sectional view along the A-A direction;

[0035] Figure 11 shows Figure 10 Partial enlarged view at D in;

[0036] Figure 12 shows Figure 9 Partial sectional view along the B-B direction in;

[0037] Figure 13 shows Figure 12 Partial enlarged view at F in.

[0038] Among them, the above-mentioned drawings include the following reference numerals:

[0039] 10, reflective layer; 11, first bent section;

[0040] 20, heat insulation layer; 201, installation concave surface;

[0041] 30, fixing part; 31, connecting piece; 32, locking piece;

[0042] 40, groove; 41, opening; 42, flared section;

[0043] 50, installation structure; 51, connecting section; 52, installation section; 53, notch; 54, stop part;

[0044] 100, mounting bracket; 200, fastener. Detailed implementation manners

[0045] Next, the technical solutions in the embodiments of the present invention will be clearly and completely described in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The following description of at least one exemplary embodiment is actually only illustrative and in no way limits the present invention and its application or use. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0046] Such as Figures 1 to 4As shown in the figure, an embodiment of the present invention provides a thermal protection component. The thermal protection component includes a plurality of thermally protective plates spliced together. Each thermally protective plate includes: a reflective layer 10, a heat insulation layer 20, and a fixing portion 30. Among them, the reflective layer 10 has a reflective surface and an installation surface arranged oppositely. The heat insulation layer 20 is located on one side of the installation surface. In this way, while the reflective layer 10 can reflect the spot energy, it can also prevent the heat insulation layer 20 from being eroded by rainwater. The heat insulation layer 20 can prevent the heat from the reflective layer 10 from being transferred to the mounting bracket 100. The fixing portion 30 includes a connecting member 31 and a locking member 32. One end of the connecting member 31 is connected to the installation surface. The other end of the connecting member 31 passes through the heat insulation layer 20. The locking member 32 is connected to the connecting member 31 in a matching manner. The heat insulation layer 20 is located between the locking member 32 and the reflective layer 10. The locking member 32 can abut against the heat insulation layer 20 to press the heat insulation layer 20 towards the installation surface. Among them, the directions where the X-axis and the Y-axis are located are the horizontal directions, and the direction where the Z-axis is located is the vertical direction. The thermally protective plate extends in the vertical direction, that is, the length direction of the thermally protective plate is the direction where the Z-axis is located, the width direction of the thermally protective plate is the direction where the X-axis is located, and the thickness direction of the thermally protective plate is the direction where the Y-axis is located.

[0047] Applying the technical solution of the present invention, one end of the connecting member 31 is connected to the installation surface. The other end of the connecting member 31 passes through the heat insulation layer 20. The heat insulation layer 20 is located between the locking member 32 and the reflective layer 10. The locking member 32 is connected to the connecting member 31 in a matching manner. The locking member 32 can abut against the heat insulation layer 20. The locking member can press the heat insulation layer 20 towards the installation surface. In this way, there is no need to open through holes on the reflective surface of the reflective layer 10, effectively avoiding the problem that it is difficult to spray a high-temperature resistant reflective coating at the opening of the reflective surface, maintaining the integrity of the surface of the reflective surface, thereby ensuring the high reflectivity of the reflective layer 10 and improving the overall thermal protection efficiency of the thermally protective plate. At the same time, through the mutual cooperation of the connecting member 31 and the locking member 32, the assembly process of the thermally protective plate is also simplified. There is no need to precisely align multiple bolt holes between different plate layers, reducing the complexity of on-site assembly of the thermally protective plate, and thus improving the overall assembly efficiency of the thermal protection component.

[0048] In this embodiment, the connecting member 31 is welded to the installation surface. The connecting member 31 is a heat-insulating nail, and the locking member 32 is a self-locking pressing plate. In other embodiments, the connecting member 31 is a stud, and the locking member 32 is a nut; in some other embodiments, the connecting member 31 is a bolt, and the locking member 32 is a spring washer or an elastic buckle.

[0049] In some embodiments, a mounting seat is provided on the mounting surface of the reflective layer 10, and one end of the connecting member 31 close to the reflective layer 10 is cooperatively connected with the mounting seat. The design of the mounting seat enables the connecting member 31 and the reflective layer 10 to be detachably connected, thus facilitating installation and maintenance. Specifically, the connecting member 31 is threadedly connected to the mounting seat, enabling the connecting member 31 to withstand greater shear force and tensile force, ensuring the structural firmness under unstable environmental conditions, reducing the risk of loosening or disconnection at the connection between the connecting member 31 and the thermal protection plate due to thermal expansion and contraction or wind load, and improving the stability of the connection between the connecting member 31 and the mounting surface.

[0050] In other embodiments, a mounting groove can also be machined on one side of the mounting surface, and the connecting member 31 is threadedly connected or tightly fitted with the mounting groove.

[0051] Specifically, the reflective layer 10 includes a metal plate and a reflective coating. The reflective coating is sprayed on the side of the metal plate away from the heat insulation layer 20. The backlight side of the metal plate forms the mounting surface, and the light-receiving side of the reflective coating forms the reflective surface. The combination of the metal plate and the reflective coating enables the thermal protection plate to maintain stable reflection efficiency and structural strength even under strong sunlight, not only improving the reflection efficiency but also enhancing the durability of the thermal protection component. Among them, the reflective coating is a high-temperature and high-reflectivity coating.

[0052] Among them, the heat insulation layer 20 can be made of one or a combination of high-temperature heat insulation materials such as aluminum silicate insulation cotton, aerogel, aluminum silicate board, ceramic fiber board, and ceramic fiber blanket. In this embodiment, the heat insulation layer 20 is divided into 3 layers. The layer away from the reflective layer 10 uses a ceramic fiber blanket with a smaller thickness, so that the inner layer has certain flexibility while having tensile and compressive strength, and can fit well with the mounting frame 100 or other structures. The two layers close to the reflective layer 10 are aluminum silicate insulation cotton with the same and larger thickness, ensuring a better heat insulation effect.

[0053] As Figure 1 and Figure 9 shown, a waterproof part is also provided between two adjacent thermal protection plates in the horizontal direction. The waterproof part is used to prevent rainwater from entering the heat insulation layer 20 through the splicing gap between two adjacent thermal protection plates in the horizontal direction. The design of the waterproof part can protect the heat insulation layer 20 and internal components from the influence of rainwater and other impurities. And the waterproof part is located between two adjacent thermal protection plates, which can reduce the influence of rainwater flowing in from the splicing gap of adjacent thermal protection plates on the heat insulation layer 20, improve the applicability of the thermal protection component to the external environment, and extend the service life of the thermal protection component.

[0054] In this embodiment, two adjacent waterproof parts in the vertical direction are lap-jointed or plugged together, and the upper part of the lower waterproof part is located on the light-shielding side of the lower part of the upper waterproof part. Specifically, the waterproof part has a light-receiving side and a light-shielding side that are oppositely arranged in the thickness direction. The light-receiving side is the side that can be directly irradiated by light or indirectly irradiated by light from the splicing gap, and the light-shielding side is the side that will not be irradiated by light. Through the above settings, on the one hand, the adjacent heat protection plates in the vertical direction can be disassembled and separated, which is convenient for disassembly, maintenance and replacement. On the other hand, since the upper part of the lower waterproof part is located on the light-shielding side of the lower part of the upper waterproof part, when rainwater flows downward through the lap joint or plug joint of the upper and lower waterproof parts, it can effectively prevent rainwater from penetrating into the heat insulation layer 20 at the lap joint or plug joint of the upper and lower waterproof parts, improving the waterproof and diversion effects of the waterproof part. In addition, the cooperation of adjacent waterproof parts in the vertical direction can also increase the assembly firmness between adjacent heat protection plates. Specifically, the waterproof part can be a plate-like structure or a groove-shaped structure.

[0055] In this embodiment, any two adjacent heat protection plates in the horizontal direction are taken as the first characteristic heat protection plate and the second characteristic heat protection plate, the waterproof part arranged between the first characteristic heat protection plate and the second characteristic heat protection plate is taken as the characteristic waterproof part, the combined reflective surface formed by the reflective surfaces of the first characteristic heat protection plate and the second characteristic heat protection plate is taken as the characteristic reflective surface, and the combined installation surface formed by the installation surfaces of the first characteristic heat protection plate and the second characteristic heat protection plate is taken as the characteristic installation surface.

[0056] Among them, the characteristic waterproof part is installed on the characteristic reflective surface or the characteristic installation surface, the characteristic waterproof part extends in the vertical direction, and the characteristic waterproof part covers the reflective layer gap between the reflective layer 10 in the first characteristic heat protection plate and the reflective layer 10 in the second characteristic heat protection plate. With such a setting, the external rainwater or other impurity pollution will be blocked by the waterproof part and flow out along the waterproof part, avoiding impurities from entering the interior of the heat insulation layer 20 and reducing the influence of the external environment on the heat insulation layer 20.

[0057] Further, in this embodiment, the characteristic waterproof part is detachably connected or abutted against at least one of the reflective layers 10 in the first characteristic heat protection plate and the reflective layers 10 in the second characteristic heat protection plate. With this arrangement, the first characteristic heat protection plate and the second characteristic heat protection plate can be detached and separated, facilitating the disassembly, repair, and replacement of the heat protection plate. In addition, as described above, in this embodiment, two adjacent characteristic waterproof parts in the vertical direction are lap-jointed or plugged together. Therefore, each heat protection plate in this embodiment can be detached from the heat protection plates adjacent to it in the horizontal and vertical directions, enabling each heat protection plate in the heat protection assembly of this embodiment to be replaced individually, thereby reducing the maintenance cost of the heat protection assembly and improving the convenience of maintenance. Specifically, one side of the characteristic waterproof part can be fixedly connected (such as welded) to the first characteristic heat protection plate, and the other side can be detachably connected or abutted against the second characteristic heat protection plate. It can also be detachably connected or abutted against both the first characteristic heat protection plate and the second characteristic heat protection plate on both sides. It can also be that one side is fixedly connected (such as welded) to the second characteristic heat protection plate, and the other side is detachably connected or abutted against the first characteristic heat protection plate.

[0058] In this application, the characteristic waterproof part and the reflective layer 10 can be detachably connected through a snap structure, fasteners, interference fit, etc. In this embodiment, one side of the characteristic waterproof part is fixedly connected to the reflective layer 10 in the first characteristic heat protection plate, and the other side of the characteristic waterproof part is detachably connected or abutted against the reflective layer 10 in the second characteristic heat protection plate. In other embodiments, both sides of the characteristic waterproof part are respectively detachably connected or abutted against the reflective layer 10 in the first characteristic heat protection plate and the reflective layer 10 in the second characteristic heat protection plate.

[0059] In this embodiment, the waterproof part is installed on the installation surface. A first space is provided between the reflective layer 10 and the heat insulation layer 20 in the first heat protection plate, and a second space is provided between the reflective layer 10 and the heat insulation layer 20 in the second heat protection plate. The first space and the second space are combined to form an installation space for installing the waterproof part. If the first installation space and the second installation space are not provided, in order to install the waterproof part, it is necessary to reduce the width of the heat insulation layer 20 in the first heat protection plate and the heat insulation layer 20 in the second heat protection plate as a whole (that is, the sides of the heat insulation layer 20 in the first heat protection plate and the second heat protection plate in the width direction were originally flush with the edges of the corresponding reflective layer 10 in the width direction and covered the backlight side of the entire reflective layer 10. Now, in order to install the waterproof part, the sides of the heat insulation layer 20 in the first heat protection plate and the second heat protection plate in the width direction must retract away from the edges of the corresponding reflective layer 10 to expose the edge part of the reflective layer 10 for connection with the waterproof part, resulting in a smaller width of the heat insulation layer 20), so that the heat insulation layer 20 in the first heat protection plate and the second heat protection plate cannot completely cover the backlight side of the corresponding reflective layer 10, that is, the heat insulation capacity of the area in the first heat protection plate and the second heat protection plate not covered by the heat insulation layer 20 becomes poor. This will cause the internal components protected by the heat protection component (such as the components in the heat absorber) to be damaged due to high temperature. In this embodiment, by providing the first installation space and the second installation space, on the one hand, it can provide an installation space for installing the waterproof part. On the other hand, since the waterproof part is essentially clamped between the heat insulation layer 20 and the corresponding reflective layer 10 (that is, the backlight side of the waterproof part is also covered by the heat insulation layer 20), therefore, the heat insulation layer 20 can still completely cover the backlight side of the corresponding reflective layer 10, so that the heat protection component still has good heat insulation capacity and ensures the safety of the internal components it protects.

[0060] Such as Figure 2As shown, in this embodiment, the characteristic waterproof part is the groove 40. The groove 40 extends in the vertical direction, so that the rainwater entering the inside of the groove 40 can be diverted, and it will gather and fall due to its own weight, avoiding the retention of rainwater on the surface of the thermal protection plate. And it can form a continuous channel with the grooves 40 of the adjacent upper and lower thermal protection plates to achieve the continuity of waterproofing and drainage. The groove 40 has an opening 41, and the opening 41 faces the gap of the reflective layer. The extending direction of the opening 41 is the same as that of the groove 40. The groove 40 covers the gap of the reflective layer, and the width of the groove 40 is greater than or equal to the width of the gap of the reflective layer. By using the groove 40 to cover the gap of the reflective layer, it is ensured that the rainwater or impurities entering from the gap of the reflective layer directly enter the groove 40 to gather and flow out, effectively blocking the penetration of rainwater, improving the waterproof performance of the thermal protection component, and reducing the maintenance frequency of the heat insulation layer 20. In addition, by setting the width of the groove 40 to be greater than the width of the gap of the reflective layer, a certain distance can be formed between the edge of the gap of the reflective layer in the width direction and the side surface of the groove 40 in the width direction. When the rainwater enters the groove 40 through the gap of the reflective layer, the risk of rainwater entering the heat insulation layer 20 from the connection between the groove 40 and the reflective layer 10 can be further reduced.

[0061] Specifically, the end face of the opening 41 of the groove 40 is connected to the characteristic installation surface, and the side surface of the groove 40 in the width direction abuts against the heat insulation layer 20. There is an installation concave surface 201 at the abutting part of the heat insulation layer 20 and the groove 40. The structural contour of the installation concave surface 201 is adapted to the structural contour of the groove 40. The installation concave surface 201 of the heat insulation layer 20 located on the first characteristic thermal protection plate forms a first space, and the installation concave surface 201 of the heat insulation layer 20 located on the second characteristic thermal protection plate forms a second space. This makes the installation of the components in the thermal protection plate more compact, reduces the waste of space inside the thermal protection plate, improves the space utilization rate of the thermal protection plate and the rationality of the component layout. At the same time, the heat insulation layer 20 can still cover the backlight side of the groove 40, so that the protection component still has good heat insulation ability.

[0062] Furthermore, the cross-sectional shape of the groove 40 in the horizontal direction is rectangular, U-shaped, arc-shaped or V-shaped. In other embodiments, the cross-sectional shape of the groove 40 can be adjusted according to the actual working conditions. For example, when there is an angle or a curved surface arrangement between two adjacent thermal protection plates in the horizontal direction of the thermal protection component, the cross-sectional shape of the groove 40 can be trapezoidal or other curved structures.

[0063] Specifically, in this embodiment, two adjacent grooves 40 in the vertical direction are inserted and matched, and the bottom of the groove 40 located above is inserted into the top of the groove 40 located below. With such a setting, it can effectively prevent rainwater from directly penetrating through the splicing gap between the grooves 40, improving the waterproof and diversion effects of the waterproof part.

[0064] As shown Figure 2 in FIG. 1, the top or the bottom of the groove 40 protrudes from the thermal protection plate, so that two adjacent grooves 40 in the vertical direction can achieve plug-in fit. Specifically, in this embodiment, the top of the groove 40 has a flared section 42, and the flared section 42 can be sleeved on the outer periphery of the groove 40 arranged adjacent in the vertical direction; alternatively, the bottom of the groove 40 has a constricted section, and the constricted section can be inserted into the interior of the groove 40 arranged adjacent in the vertical direction. By providing the flared section 42 at the top of the groove 40, since the radial width of the bottom of the upper groove 40 is smaller than the radial width of the flared section 42 at the top of the lower groove 40, therefore, it can provide installation guidance for the plug-in fit of two adjacent grooves 40 in the vertical direction and improve the convenience of plugging; similarly, by providing the constricted section at the bottom of the groove 40, since the radial width of the constricted section at the bottom of the upper groove 40 is smaller than the radial width of the top of the lower groove 40, therefore, it can also provide installation guidance for the plug-in fit of two adjacent grooves 40 in the vertical direction and improve the convenience of plugging. In addition, the plug-in fit of two adjacent grooves 40 in the vertical direction enables the two thermal protection plates to form an interlocking structure in the length direction, reducing looseness and displacement caused by factors such as wind force, thermal expansion and contraction, etc., and ensuring the firm splicing and overall stability of the thermal protection assembly in a harsh environment.

[0065] Wherein, on the side of the groove 40 facing the gap of the reflective layer, that is, the light-receiving side, a high-temperature and high-reflectivity coating is applied to reflect the light transmitted through the gap of the reflective layer.

[0066] Furthermore, both ends of the groove 40 penetrate through both ends of the heat insulation layer 20 arranged in the vertical direction. When the top of the groove 40 has a flared section 42, the flared section 42 protrudes from the thermal protection plate; when the bottom of the groove 40 has a constricted section, the constricted section protrudes from the thermal protection plate. Through the above settings, the protruding flared section 42 or the protruding constricted section can provide installation guidance for the adjacent groove 40, facilitating the rapid positioning during the installation of the thermal protection plate and improving the assembly efficiency of multiple thermal protection plates.

[0067] In other embodiments, the groove 40 and the thermal protection plate are arranged in a vertical offset manner. One end of the groove 40 in the vertical direction is located on the horizontal end of the reflective layer 10, and the other end protrudes from the thermal protection plate. In this way, the splicing position of two adjacent grooves 40 is located on the horizontal end of the thermal protection plate and at any position in the vertical direction except the splicing position of the two thermal protection plates, improving the flexibility of the splicing of the thermal protection plate.

[0068] In some other embodiments of the present application, a plurality of thermal protection plates arranged sequentially in the vertical direction share a groove 40.

[0069] As shown Figures 5 to 8As shown, the thermal protection plate further includes an installation structure 50, and the installation structure 50 is used to hang the thermal protection plate on the mounting rack 100. The design of the installation structure 50 enables the thermal protection plate to be installed on the mounting rack 100 in a hanging manner, simplifying the on-site installation process. The hanging method avoids the cumbersome steps of using a large number of bolts and fasteners, and at the same time is convenient for subsequent maintenance and replacement, without the need for complex disassembly tools and processes, improving the efficiency and flexibility of on-site operations.

[0070] As Figures 9 to 12 shown, the installation structure 50 includes a connecting section 51 and an installation section 52 that are sequentially connected. The connecting section 51 is connected to the installation surface of the reflective layer 10, and the installation section 52 protrudes from the side of the heat insulation layer 20 away from the reflective layer 10. There is a notch 53 on the side of the installation section 52 away from the reflective layer 10, and the notch 53 is detachably connected to the mounting rack 100. The notch 53 can hang the thermal protection plate on the mounting rack 100. The design of the notch 53 is simple and convenient for processing. Through the connecting section 51 and the installation section 52, the connection between the thermal protection plate and the mounting rack 100 becomes simpler and more reliable. At the same time, the detachable notch design enables the maintenance and replacement of the thermal protection plate without removing the entire mounting rack 100. Just gently lift the thermal protection plate to disengage the notch from the mounting rack 100, improving the maintenance efficiency and reducing the maintenance cost.

[0071] By adjusting the protruding length of the installation section 52 and the structural dimensions of the notch 53, the thermal protection plate can adapt to different specifications of the heat absorber and different requirements of the installation space, ensuring that the thermal protection component can be stably installed at various angles and positions.

[0072] Among them, multiple installation structures 50 are provided, and multiple heat insulation layers 20 are also provided. The multiple installation structures 50 are located between the multiple heat insulation layers 20. This avoids the direct penetration of the installation structure 50 into the heat insulation layer 20, helping to maintain the integrity and heat insulation performance of the heat insulation layer 20.

[0073] As Figure 6 shown, a stop portion 54 is further provided at the opening of the notch 53 to partially block the opening of the notch 53 to prevent the mounting rack 100 from slipping out of the notch 53; the stop portion 54 is fixedly connected or integrally formed with the installation section 52. The setting of the stop portion 54 can ensure the installation stability. After being hung on the mounting rack 100, the stop portion 54 can hold the mounting rack 100 in the notch 53 to prevent the mounting rack 100 from slipping out of the notch 53 and causing the thermal protection plate to fall.

[0074] In this embodiment, the thickness of the stop portion 54 gradually decreases in the vertical direction away from the installation surface. In this way, the contour of the notch 53 can adapt to more sizes of the mounting rack 100, and at the same time, the structural strength of the installation structure 50 can be ensured.

[0075] In other embodiments, the notch 53 can also be set as a rectangle, a trapezoid or other special-shaped structures, and can be adjusted according to actual installation requirements.

[0076] Further, the stop portion 54 has fixing holes, and the fixing holes cooperate with the mounting bracket 100 through fasteners 200 to fix the position of the mounting bracket 100 in the notch 53. The cooperation between the fixing holes and the fasteners 200 makes the connection between the thermal protection plate and the mounting bracket 100 more firm, avoiding horizontal movement of the thermal protection plate relative to the mounting bracket 100, or loosening or falling off due to external forces, and improving the safety and reliability of the mounting structure 50.

[0077] Among them, through holes can be formed in the mounting bracket 100, and the through holes cooperate with the fasteners 200, so that the mounting bracket 100 is fixedly connected to the mounting structure 50 through the fasteners 200, which can further improve the stability of the installation of the thermal protection plate and the mounting bracket 100.

[0078] Further, in this embodiment, two adjacent reflective layers 10 in the vertical direction are inserted or lapped, and the mounting surface at the bottom of the upper reflective layer 10 covers the outside of the reflective surface at the top of the lower reflective layer 10. When the two reflective layers 10 are inserted, the top of the lower reflective layer 10 is inserted into the bottom of the upper reflective layer 10. When the two reflective layers 10 are lapped, the bottom of the upper reflective layer 10 overlaps and covers the outside of the top of the lower reflective layer 10. In this way, it can be ensured that the upper reflective layer 10 is located outside the lower reflective layer 10 at the splicing position, guiding rainwater and impurities, reducing the possibility of impurities entering the splicing position between adjacent reflective layers 10, ensuring the waterproof effect at the horizontal splicing position, preventing rainwater from entering the heat insulation layer 20 from the splicing position, and also improving the continuity of splicing and the uniformity of the protection effect.

[0079] As Figure 12 and Figure 13 shown, the bottom of the reflective layer 10 has a first bending section 11, and the first bending section 11 bends toward the side away from the heat insulation layer 20, that is, the first bending section 11 of the upper thermal protection plate overlaps the outside of the end of the reflective layer 10 of the lower thermal protection plate; or, the top of the reflective layer 10 has a second bending section, and the second bending section bends toward the side close to the heat insulation layer 20, that is, the end of the reflective layer 10 of the upper thermal protection plate overlaps the outside of the second bending section of the lower thermal protection plate. Specifically, designed in this way, it can block and guide external rainwater and impurities, thereby preventing rainwater from flowing downward and entering the heat insulation layer 20 from the horizontal gap between two adjacent thermal protection plates in the vertical direction, improving the waterproof effect. And the above design has a simple structure, is convenient for processing, and at the same time, the structure of the bending section can also improve the structural strength of the splicing position of the thermal protection plate.

[0080] In other embodiments, a first bending section 11 and a second bending section are respectively arranged at the bottom and the top of the reflective layer 10.

[0081] In some embodiments of the present application, a plugging groove is arranged at the bottom of the reflective layer 10, and a plug is arranged at the top of the reflective layer 10. The plugging groove can be plugged and matched with the plug on the adjacent heat protection plate, and the plugging groove and the plug form a splicing part.

[0082] In another embodiment of the present application, a heat absorber is provided, which includes a heat absorber body and a heat protection component. The heat protection component is used to protect the non-light-receiving area in the heat absorber body, and the heat protection component is the above-mentioned heat protection component. The above heat protection component does not need to open holes on the reflective surface of the reflective layer 10, can maintain the integrity of the reflective surface, and thus enables the reflective layer to have a good protection effect. Adopting the above heat protection component in the heat absorber can effectively improve the heat protection ability of the heat absorber body and enhance the safety of the heat absorber.

[0083] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, operations, devices, components and / or combinations thereof.

[0084] Unless otherwise specifically stated, the relative arrangements, numerical expressions and values of the components and steps set forth in these embodiments do not limit the scope of the present invention. At the same time, it should be understood that for the convenience of description, the sizes of the various parts shown in the drawings are not drawn according to the actual proportional relationship. Technologies, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, the technologies, methods and devices should be regarded as part of the specification. In all the examples shown and discussed here, any specific value should be construed as merely exemplary and not as a limitation. Therefore, other examples of the exemplary embodiments may have different values. It should be noted that like reference numerals and letters denote like items in the following drawings, and thus, once an item is defined in one drawing, it does not need to be further discussed in subsequent drawings.

[0085] In the description of the present invention, it should be understood that the orientation or positional relationship indicated by orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, perpendicular, horizontal" and "top, bottom", etc. is usually based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description. Without contrary explanation, these orientation words do not indicate and imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation on the protection scope of the present invention; the orientation words "inside, outside" refer to the inside and outside relative to the contour of each component itself.

[0086] For the convenience of description, spatial relative terms such as "above...", "over...", "on the upper surface of...", "above-mentioned", etc. can be used here to describe the spatial positional relationship between a device or feature shown in the drawings and other devices or features. It should be understood that the spatial relative terms are intended to cover different orientations in use or operation in addition to the orientation described in the drawings for the device. For example, if the device in the drawing is inverted, the device described as "above other devices or structures" or "over other devices or structures" will then be positioned as "below other devices or structures" or "under other devices or structures". Thus, the exemplary term "above..." can include both the orientations of "above..." and "below...". The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and corresponding interpretations should be made for the spatial relative descriptions used here.

[0087] In addition, it should be noted that using words such as "first", "second", etc. to limit components is only for the convenience of distinguishing the corresponding components. Without otherwise stating, the above words have no special meaning. Therefore, it should not be construed as a limitation on the protection scope of the present invention.

[0088] The above are only the preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included within the protection scope of the present invention.

Claims

1. A thermal protection component, characterized in that: The heat protection assembly includes a plurality of heat protection plates spliced ​​to each other, each of the heat protection plates including: A reflective layer (10) and a heat-insulating layer (20), wherein the reflective layer (10) has a reflective surface and a mounting surface that are arranged opposite to each other, and the heat-insulating layer (20) is located on one side of the mounting surface; The fixing part (30) comprises a connecting piece (31) and a locking piece (32), one end of the connecting piece (31) is connected to the mounting surface, the other end of the connecting piece (31) is passed through the heat insulating layer (20), the locking piece (32) is cooperatively connected to the connecting piece (31), the heat insulating layer (20) is located between the locking piece (32) and the reflective layer (10), and the locking piece (32) can press the heat insulating layer (20) toward the mounting surface.

2. The heat protection assembly according to claim 1, characterized in that: A mounting seat is provided on the mounting surface of the reflective layer (10), and one end of the connecting member (31) close to the reflective layer (10) is cooperatively connected to the mounting seat.

3. The heat protection assembly according to claim 1, characterized in that: A waterproof portion is also provided between two adjacent heat protection plates in the horizontal direction, and the waterproof portion is used to prevent rainwater from entering the heat insulation layer (20) through a joint gap between the two adjacent heat protection plates in the horizontal direction.

4. The heat protection assembly according to claim 3, characterized in that: Any two adjacent heat protection plates in the horizontal direction are used as the first characteristic heat protection plate and the second characteristic heat protection plate, the waterproof portion arranged between the first characteristic heat protection plate and the second characteristic heat protection plate is used as the characteristic waterproof portion, the combined reflective surface formed by the reflective surface of the first characteristic heat protection plate and the reflective surface of the second characteristic heat protection plate is used as the characteristic reflective surface, and the combined mounting surface formed by the mounting surface of the first characteristic heat protection plate and the mounting surface of the second characteristic heat protection plate is used as the characteristic mounting surface; The characteristic waterproof portion is installed on the characteristic reflective surface or on the characteristic installation surface, the characteristic waterproof portion extends in the vertical direction, and the characteristic waterproof portion covers the reflective layer gap between the reflective layer in the first characteristic heat protection plate and the reflective layer in the second characteristic heat protection plate.

5. The heat protection assembly according to claim 4, characterized in that: The characteristic waterproof part is detachably connected or abutted to at least one of the light reflecting layer (10) in the first characteristic heat protection plate and the light reflecting layer (10) in the second characteristic heat protection plate.

6. The heat protection assembly according to claim 4, characterized in that: The characteristic waterproof part is installed on the characteristic installation surface, a first space is provided between the reflective layer (10) and the heat insulating layer (20) in the first characteristic heat protection plate, a second space is provided between the reflective layer (10) and the heat insulating layer (20) in the second characteristic heat protection plate, and the first space and the second space are combined to form an installation space for installing the characteristic waterproof part.

7. The heat protection assembly according to claim 4, characterized in that: The two adjacent waterproof parts in the vertical direction are overlapped or plugged together, and the upper part of the waterproof part at the bottom is located on the backlight side of the lower part of the waterproof part at the top.

8. The heat protection assembly according to claim 6, characterized in that: The characteristic waterproof portion is a groove (40), the groove (40) extends in a vertical direction, the groove (40) has an opening (41), the extension direction of the opening (41) is the same as the extension direction of the groove (40), the opening (41) faces the reflective layer gap, the groove (40) covers the reflective layer gap, and the width of the groove (40) is greater than or equal to the width of the reflective layer gap.

9. The heat protection assembly according to claim 8, characterized in that: Two adjacent grooves (40) in the vertical direction are plug-fitted, and the bottom of the groove (40) located above is inserted into the top of the groove (40) located below.

10. The heat protection assembly according to claim 8, characterized in that The top of the groove (40) or the bottom of the groove (40) protrudes from the heat protection plate; The top of the groove (40) has a flared section (42), and the flared section (42) can be sleeved on the outer periphery of the groove (40) adjacently arranged in the vertical direction; or, The bottom of the groove (40) has a necking section, and the necking section can be inserted into the interior of the groove (40) adjacently arranged in the vertical direction.

11. The heat protection assembly according to claim 8, characterized in that: The heat insulation layer (20) is in contact with the groove (40); a mounting concave surface (201) is provided at the abutment point between the heat insulation layer (20) and the groove (40); a structural profile of the mounting concave surface (201) is matched with a structural profile of the groove (40); the mounting concave surface (201) located on the first characteristic heat protection plate forms the first space; and the mounting concave surface (201) located on the second characteristic heat protection plate forms the second space.

12. The heat protection assembly according to claim 1, characterized in that The heat protection plate further comprises a mounting structure (50), wherein the mounting structure (50) is used to hang the heat protection plate on a mounting frame (100).

13. The heat protection assembly according to claim 12, characterized in that The mounting structure (50) comprises a connecting section (51) and a mounting section (52) connected in sequence, the connecting section (51) being connected to a mounting surface of the reflective layer (10), the mounting section (52) protruding from a side of the heat insulating layer (20) away from the reflective layer (10), the side of the mounting section (52) away from the reflective layer (10) having a notch (53), the notch (53) being detachably connected to the mounting frame (100), and the notch (53) being capable of hanging the heat protection plate on the mounting frame (100).

14. The heat protection assembly according to claim 13, characterized in that A stopper (54) is also provided at the opening of the notch (53) to partially block the opening of the notch (53) to prevent the mounting frame (100) from falling out of the notch (53); The stop portion (54) is fixedly connected to or integrally formed with the mounting section (52).

15. The heat protection assembly according to claim 14, characterized in that The stopper (54) has a fixing hole, and the fixing hole cooperates with the mounting frame (100) through a fastener (200) to fix the position of the mounting frame (100) in the notch (53).

16. The heat protection assembly according to claim 1, characterized in that Two adjacent reflective layers (10) in the vertical direction are plug-fitted or overlap-fitted, and the mounting surface at the bottom of the reflective layer (10) located above covers the outer side of the reflective surface at the top of the reflective layer (10) located below.

17. The heat protection assembly according to claim 16, characterized in that The bottom of the reflective layer (10) has a first bent section (11), and the first bent section (11) is bent toward a side away from the heat insulation layer (20); or, The top of the reflective layer (10) has a second bent section, and the second bent section is bent towards a side close to the heat insulation layer (20).

18. A heat absorber, comprising a heat absorber body and a heat protection component, wherein the heat protection component is used to protect a non-light-receiving area in the heat absorber body, characterized in that: The heat protection component is the heat protection component described in any one of claims 1 to 17.

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