Tower type solar thermal power generation heat absorber

Abstract

The utility model provides a tower type solar thermal power generation heat absorber. The tower type solar thermal power generation heat absorber comprises a tube panel, an upper header, a lower header and a plurality of fins, the tube panel comprises a plurality of heat absorption tubes which are arranged side by side and form the tube panel in a surrounding mode, and the tube panel is a polygonal cylinder or a cylinder. The upper header is fixedly connected with one end of the tube panel, is communicated with all the heat absorption tubes and is communicated with at least one upper inlet and outlet pipeline; the lower header is fixedly connected with the other end of the tube panel, is communicated with all the heat absorption tubes and is communicated with at least one lower inlet and outlet pipeline; the plurality of fins are arranged between every two adjacent heat absorption pipes and are fixedly connected with the two adjacent heat absorption pipes; along the axis of the tube panel, each heat absorption tube is of a spiral structure surrounding the axis, each heat absorption tube at least surrounds the tube panel by one circle, and the technical problem that the heat absorber is prone to tube explosion due to the fact that the heat absorber is affected by weather, clouds, control and the like can be solved.

Description

TECHNICAL FIELD

[0001] The utility model relates to solar thermal power generation technical field, concretely relates to a tower type solar thermal power generation heat absorber. BACKGROUND

[0002] Solar thermal power generation is a main way of current solar energy utilization. Current solar thermal power generation can be divided into tower type solar thermal power generation, trough type solar thermal power generation and dish type solar thermal power generation according to solar energy collection mode.

[0003] In the field of solar thermal power generation, tower type solar thermal power generation is widely applied due to high light-heat conversion efficiency, high focusing temperature, simple control system installation and debugging and less heat loss. In the field of tower type solar thermal power generation, the heat absorber is a core component of the tower type solar thermal power generation system. The heliostat reflects sunlight to the heat absorber to heat the heat-absorbing working medium, thereby converting light energy into heat energy and driving the steam turbine to generate electricity.

[0004] In the widely used molten salt heat absorber, a plurality of heat absorbing pipes are arranged and combined to form a heat absorbing pipe screen. The heat absorbing pipe generally includes a light receiving straight pipe section and a non-light receiving bent pipe section. In actual application, the straight pipe section is easily affected by weather, cloud layer and control due to single-sided acceptance of sunlight, and is prone to uneven heating, which causes the heat absorber to burst, and the unit has to be forced to stop, seriously affecting the safe and economic operation of the solar thermal power plant. UTILITY MODEL CONTENTS

[0005] The utility model provides a tower type solar thermal power generation heat absorber to improve the technical problem that the heat absorber is easily affected by weather, cloud layer and control and prone to burst.

[0006] To achieve the above object and other related objects, the utility model provides a tower type solar thermal power generation heat absorber in the first aspect, which comprises a pipe screen, an upper header tank, a lower header tank and a plurality of fins. The pipe screen comprises a plurality of heat absorbing pipes arranged side by side and surrounding the pipe screen, and the pipe screen is a polygonal cylinder or a circular cylinder. The upper header tank is fixedly connected to one end of the pipe screen and communicates with all the heat absorbing pipes. The upper header tank is communicated with at least one upper inlet and outlet pipe. The lower header tank is fixedly connected to the other end of the pipe screen and communicates with all the heat absorbing pipes. The lower header tank is communicated with at least one lower inlet and outlet pipe. The plurality of fins are arranged between every two adjacent heat absorbing pipes and fixedly connected with the two adjacent heat absorbing pipes. Wherein, along the axis of the pipe screen, each heat absorbing pipe is a spiral structure around the axis, and each heat absorbing pipe at least surrounds the pipe screen one round.

[0007] In an embodiment of the tower type solar thermal power generation heat absorber, the tube panel comprises a plurality of sub-tube panels, the plurality of sub-tube panels are arranged side by side and surround the tube panel, each of the sub-tube panels comprises a plurality of heat absorption tubes, and the plurality of heat absorption tubes are arranged side by side to form a spiral sub-tube panel.

[0008] In an embodiment of the tower type solar thermal power generation heat absorber, the upper header tank comprises a plurality of sub-upper header tanks, one of each of the sub-tube panels is fixedly connected with one of the sub-upper header tanks, each of the sub-upper header tanks is in communication with all of the heat absorption tubes of the corresponding sub-tube panel, and at least one upper inlet and outlet pipeline is in communication with each of the sub-upper header tanks.

[0009] In an embodiment of the tower type solar thermal power generation heat absorber, the lower header tank comprises a plurality of sub-lower header tanks, the other end of each of the sub-tube panels is fixedly connected with one of the sub-lower header tanks, each of the sub-lower header tanks is in communication with all of the heat absorption tubes of the corresponding sub-tube panel, and at least one lower inlet and outlet pipeline is in communication with each of the sub-lower header tanks.

[0010] In an embodiment of the tower type solar thermal power generation heat absorber, the upper header tank is externally provided with an upper heat preservation tank, and the lower header tank is externally provided with a lower heat preservation tank.

[0011] In an embodiment of the tower type solar thermal power generation heat absorber, the outer side of the upper heat preservation tank and the outer side of the lower heat preservation tank are both provided with a heat preservation tank heat-resistant protective layer.

[0012] In an embodiment of the tower type solar thermal power generation heat absorber, each of the heat absorption tubes and the upper header tank are connected through an upper connecting pipe, and each of the heat absorption tubes and the lower header tank are connected through a lower connecting pipe.

[0013] In an embodiment of the tower type solar thermal power generation heat absorber, the heat resistance of the material of the heat absorption tubes is greater than the heat resistance of the material of the upper header tank and the upper connecting pipe, the upper connecting pipe, the upper header tank and the connection between the heat absorption tubes and the upper connecting pipe are all located in the upper heat preservation tank.

[0014] In an embodiment of the tower type solar thermal power generation heat absorber, the heat resistance of the material of the heat absorption tubes is greater than the heat resistance of the material of the lower header tank and the lower connecting pipe, the lower connecting pipe, the lower header tank and the connection between the heat absorption tubes and the lower connecting pipe are all located in the lower heat preservation tank.

[0015] In an embodiment of the tower type solar thermal power generation heat absorber, the material of the upper connecting pipe, the lower connecting pipe, the upper header tank and the lower header tank is the same.

[0016] This utility model discloses a tower-type solar thermal power generation receiver. By arranging the heat-absorbing tubes into a spiral structure surrounding the axis of the tube screen, with each heat-absorbing tube completing at least one revolution around the tube screen, each heat-absorbing tube can receive 360° of sunlight. Weather conditions or cloud cover will simultaneously affect all heat-absorbing tubes within the same tube screen, reducing temperature differences and ensuring more uniform heating. This effectively reduces thermal stress within the tube screen, thereby lowering the risk of tube bursts. The system also simplifies the control system and logic, reduces the impact of cloud cover during operation, lowers control equipment and operating costs, and improves the safety, economy, and stability of solar thermal power generation. Attached Figure Description

[0017] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other embodiments can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of the structure of the tower-type solar thermal power generation receiver of this utility model in one embodiment;

[0019] Figure 2 This is a cross-sectional view of one embodiment of the tower-type solar thermal power generation receiver of this utility model;

[0020] Figure 3 for Figure 2 A magnified view of a section at point A in the middle;

[0021] Figure 4 This is a top view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0022] Figure 5 This is a bottom view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0023] Figure 6 This is a top view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0024] Figure 7 This is a bottom view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0025] Figure 8 This is a top view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0026] Figure 9This is a bottom view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0027] Figure 10 This is a top view of one embodiment of the tower-type solar thermal power generation receiver of the present invention;

[0028] Figure 11 This is a bottom view of one embodiment of the tower-type solar thermal power generation receiver of this utility model.

[0029] Component designation explanation:

[0030] 100. Tube screen; 110. Heat absorption tube; 120. Inner insulation layer; 130. Heat-resistant protective layer of tube screen; 200. Upper header; 210. Sub-upper header; 220. Upper inlet / outlet pipe; 230. Upper connecting pipe; 300. Lower header; 310. Sub-lower header; 320. Lower inlet / outlet pipe; 330. Lower connecting pipe; 400. Ribs; 500. Upper insulation box; 600. Lower insulation box; 700. Heat-resistant protective layer of insulation box. Detailed Implementation

[0031] The following specific examples illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. This utility model can also be implemented or applied through other different specific embodiments, and various details in this specification can also be modified or changed based on different viewpoints and applications without departing from the spirit of this utility model. It should be noted that, in the absence of conflict, the following embodiments and features in the embodiments can be combined with each other. It should also be understood that the terminology used in the embodiments of this utility model is for describing specific implementation schemes and not for limiting the scope of protection of this utility model. Test methods in the following embodiments that do not specify specific conditions are generally performed under conventional conditions or according to the conditions recommended by the respective manufacturers.

[0032] When numerical ranges are given in the embodiments, it should be understood that, unless otherwise specified in this invention, both endpoints of each numerical range and any value between the two endpoints may be selected. Unless otherwise defined, all technical and scientific terms used in this invention, as well as the prior art known to those skilled in the art and the description of this invention, may be implemented using any prior art methods, equipment, and materials similar to or equivalent to those in the embodiments of this invention.

[0033] It should be noted that the terms such as "upper", "lower", "left", "right", "middle" and "one" used in this specification are only for clarity of description and are not intended to limit the scope of implementation of this utility model. Changes or adjustments to their relative relationships, without substantially altering the technical content, should also be considered as within the scope of implementation of this utility model.

[0034] Please see Figures 1 to 11 This utility model provides a tower-type solar thermal power generation absorber. By setting the heat absorption tube 110 as a spiral structure around the axis of the tube screen 100, each heat absorption tube 110 can receive 360° of sunlight, which can reduce the temperature difference of the heat absorption tubes 110 in the same tube screen 100, make the heating of all heat absorption tubes 110 in the same tube screen 100 more uniform, and thus reduce the risk of heat absorption tube 110 bursting.

[0035] Please see Figure 1 and Figure 2 The present invention relates to a tower-type solar thermal power generation receiver, comprising a tube panel 100, an upper header 200, a lower header 300, and multiple fins 400.

[0036] The tube screen 100 includes multiple heat-absorbing tubes 110 for absorbing solar energy. The multiple heat-absorbing tubes 110 are arranged side-by-side and surround the tube screen 100. The number of heat-absorbing tubes 110 in the tube screen 100 is not limited and is determined based on the specific design parameters and operating requirements of the absorber. Factors such as heat load, tower size, tube screen 100 arrangement, heat-absorbing tube 110 specifications, and materials need to be comprehensively considered. A suitable number of heat-absorbing tubes 110 is determined through calculation and optimization. A working fluid flows inside the heat-absorbing tubes 110; in this embodiment, the working fluid is molten salt (not shown in the figure). The material of the heat-absorbing tubes 110 is not limited, as long as they have good high-temperature resistance, corrosion resistance, and fatigue resistance, and can meet the operating requirements of the absorber under high-temperature and corrosive conditions. In this embodiment, the heat-absorbing tube 110 is made of a nickel-based alloy. In other embodiments, the surface of the heat-absorbing tube 110 can be coated with a heat-absorbing material. Preferably, the tube screen 100 is a polygonal cylinder or a cylindrical tube; for example, in one embodiment, please refer to... Figure 4 and Figure 5 The tube screen 100 is a square tube, and most of its surface is flat, with only the corners requiring bending, which has the advantage of being easy to manufacture; in another embodiment, please refer to Figure 6 and Figure 7 The tube screen 100 is cylindrical, which helps to improve the uniformity of heat distribution. In other embodiments, the tube screen 100 may also be a regular polygonal cylinder. All of the above shapes can enable the tube screen 100 to form a rotating structure, which can improve the uniformity of heat distribution.

[0037] Please see Figure 2The upper header 200 is fixedly connected to one end of the tube screen 100 and communicates with all the heat-absorbing tubes 110. The upper header 200 is connected to at least one upper inlet / outlet pipe 220. The lower header 300 is fixedly connected to the other end of the tube screen 100 and communicates with all the heat-absorbing tubes 110. The lower header 300 is connected to at least one lower inlet / outlet pipe 320. The upper header 200 and lower header 300 are responsible for distributing and collecting the working fluid. They are connected to other parts of the solar thermal power generation system through pipes to ensure continuous flow and circulation of the working fluid. It should be noted that both the upper inlet / outlet pipe 220 and the lower inlet / outlet pipe 320 can serve as both outlet and inlet pipes for the working fluid. Specifically, if the upper inlet / outlet pipe 220 is the working fluid inlet, then the lower inlet / outlet pipe 320 is the working fluid outlet; conversely, if the upper inlet / outlet pipe 220 is the working fluid outlet, then the lower inlet / outlet pipe 320 is the working fluid inlet. The appropriate choice can be made based on the actual working conditions.

[0038] Please see Figure 2 and Figure 3 Multiple ribs 400 are disposed between every two adjacent heat-absorbing tubes 110 and are fixedly connected to the two adjacent heat-absorbing tubes 110 to fix and conduct heat to the adjacent heat-absorbing tubes 110. They can also block sunlight from entering the inside of the tube screen 100 through the gap between the two adjacent heat-absorbing tubes 110, thus protecting other devices located inside the tube screen 100.

[0039] Please see Figure 1 and Figure 2 Along the axis of the tube screen 100, each heat-absorbing tube 110 is a spiral structure surrounding the axis. The spiral angle is not limited, as long as each heat-absorbing tube 110 circles the tube screen 100 at least once. This arrangement allows each heat-absorbing tube 110 to receive 360° of sunlight. The effects of weather or cloud cover will simultaneously affect all heat-absorbing tubes 110 in the same tube screen 100, reducing the temperature difference among the heat-absorbing tubes 110 in the same tube screen 100. This makes the heating of all heat-absorbing tubes 110 in the same tube screen 100 more uniform, effectively reducing thermal stress in the same tube screen 100, and thus reducing the risk of heat-absorbing tube 110 bursting. This simplifies the control system and control logic, reduces the impact of cloud cover during operation, reduces control equipment and operating costs, and improves the safety, economy, and stability of solar thermal power generation.

[0040] Please see Figure 1 , Figures 8 to 11In one embodiment of the tower-type solar thermal power generation receiver of this utility model, the tube panel 100 includes multiple sub-tube panels, which are arranged side by side and surround to form the tube panel 100. The split tube panel 100 design allows each tube panel 100 to be inspected and replaced independently. When a tube panel 100 has a problem, only that part needs to be replaced, instead of replacing the entire receiver, reducing maintenance costs and time. In addition, when one tube panel 100 needs maintenance, the other tube panels 100 can still work normally, thereby improving the equipment availability of the entire receiver. Furthermore, different tube panels 100 can be connected in series, in parallel, or in a series-parallel combination. Through reasonable arrangement and connection of the tube panels 100, the heat flow distribution can be optimized to meet the flow rate and pressure drop constraints of the molten salt in different tube panels 100. Specifically, each of the sub-tube screens includes multiple heat absorption tubes 110, and the multiple heat absorption tubes 110 are arranged side by side to form a spiral sub-tube screen. Preferably, the projection along the axis of the sub-tube screen is a polygon or a circle; for example, it can be a square, a circle or a regular polygon.

[0041] Please see Figure 2 , Figure 8 and Figure 10 In one embodiment of the tower-type solar thermal power generation absorber of this utility model, the upper manifold 200 includes multiple sub-upper manifolds 210. One end of each sub-pipe panel is fixedly connected to a sub-upper manifold 210, that is, each sub-pipe panel corresponds to one sub-upper manifold 210, so as to realize the distribution and collection of the working fluid in each sub-pipe panel. Each sub-upper manifold 210 is connected to all the heat absorption tubes 110 of each corresponding sub-pipe panel. Each sub-upper manifold 210 is connected to at least one upper inlet / outlet pipe 220. Each tube panel 100 is connected to an upper inlet / outlet pipe 220 to realize individual control. When a tube panel 100 needs maintenance, it is only necessary to close the upper inlet / outlet pipe 220 corresponding to the tube panel 100, and the other tube panels 100 can still work normally, thereby improving the equipment availability of the entire absorber.

[0042] Please see Figure 2 , Figure 9 and Figure 11In one embodiment of the tower-type solar thermal power generation absorber of this utility model, the lower manifold 300 includes multiple sub-lower manifolds 310. Each sub-lower manifold 310 is fixedly connected to the other end of the sub-tube panel, that is, each sub-tube panel corresponds to one sub-lower manifold 310, so as to realize the distribution and collection of the working fluid in each sub-tube panel. Each sub-lower manifold 310 is connected to all the heat absorption tubes 110 of each corresponding sub-tube panel. Each sub-lower manifold 310 is connected to at least one lower inlet / outlet pipe 320. Each tube panel 100 is connected to one lower inlet / outlet pipe 320 to realize individual control. When a tube panel 100 needs maintenance, it is only necessary to close the lower inlet / outlet pipe 320 corresponding to the tube panel 100, and the other tube panels 100 can still work normally, thereby improving the equipment availability of the entire absorber.

[0043] Please see Figure 2 In one embodiment of the tower-type solar thermal power generation receiver of this utility model, an upper insulation box 500 is provided outside the upper header 200, and a lower insulation box 600 is provided outside the lower header 300. The installation of the upper insulation box 500 and the lower insulation box 600 can, on the one hand, effectively reduce local heat loss in the upper header 200 and lower header 300, maintain a high-temperature environment inside the upper header 200 and lower header 300, thereby improving the thermal efficiency of the system; protect the upper header 200 and lower header 300; prevent molten salt condensation; and improve start-up efficiency, among other beneficial effects. On the other hand, with the protection of the upper insulation box 500 and lower insulation box 600, the materials of the upper header 200 and lower header 300 can be selected from materials with lower heat resistance, thereby reducing manufacturing costs. It should be noted that the upper insulation box 500 can be a single structure that covers all the upper manifolds 210, or it can be a separate structure with each upper manifold 210 having its own upper insulation box 500. Similarly, the lower insulation box 600 can be a single structure that covers all the lower manifolds 310, or it can be a separate structure with each lower manifold 310 having its own lower insulation box 600.

[0044] Please see Figure 2 In one embodiment of the tower-type solar thermal power generation absorber of this utility model, both the upper insulation box 500 and the lower insulation box 600 are provided with heat-resistant protective layers 700 on their outer sides. The heat-resistant protective layers 700 effectively protect the internal structures of the upper insulation box 500 and the lower insulation box 600, such as the headers and heat absorption pipes 110, from damage caused by high-temperature radiation and thermal shock; reduce heat loss from the upper insulation box 500 and the lower insulation box 600, improving the system's thermal efficiency; and further compensate for the heat resistance of the upper header 200 and the lower header 300. The material of the heat-resistant protective layer can be ceramic fiber, calcium silicate, rock wool, aerogel, or refractory fiber, etc.

[0045] Please see Figure 2 andFigure 3 Preferably, an inner insulation layer 120 is provided on the inner side of the tube screen 100. This can effectively reduce local heat loss inside the tube screen 100, maintain a high-temperature environment inside the tube screen 100, thereby improving the thermal efficiency of the system, preventing molten salt from condensing, and improving start-up efficiency, among other beneficial effects. On the other hand, it can also protect other components and personnel inside the tube screen 100 from burns.

[0046] Please see Figure 2 and Figure 3 Furthermore, preferably, a heat-resistant protective layer 130 for the tube shield is provided on the inner side of the inner insulation layer 120. This further reduces heat loss on the inner side of the tube shield 100 and improves the thermal efficiency of the system.

[0047] Please see Figure 2 In one embodiment of the tower-type solar thermal power generation absorber of this utility model, each of the heat-absorbing tubes 110 and the upper header 200 is connected by an upper connecting pipe 230, and each of the heat-absorbing tubes 110 and the lower header 300 is connected by a lower connecting pipe 330. The shapes of the lower connecting pipe 330 and the upper connecting pipe 230 are not limited; they can be straight pipes or bent pipes. In one embodiment, both the lower connecting pipe 330 and the upper connecting pipe 230 are bent pipes. Bends provide a certain amount of bending space, allowing the heat-absorbing tubes 110 to freely expand and contract during thermal expansion, thereby reducing additional thermal stress and deformation caused by thermal expansion. In another embodiment, both the lower connecting pipe 330 and the upper connecting pipe 230 can also be straight pipes. Straight pipes have the advantage of simple processing. When the heat-absorbing tube 110 has a spiral structure, the degree of thermal expansion is reduced, and lower-cost straight pipes can be used to reduce processing costs.

[0048] In one embodiment of the tower-type solar thermal power generation absorber of this utility model, the heat resistance of the material of the heat-absorbing pipe 110 is greater than that of the materials of the upper header 200 and the upper connecting pipe 230, thereby reducing the manufacturing cost of the absorber. The connections between the upper connecting pipe 230, the upper header 200, and the heat-absorbing pipe 110 and the upper connecting pipe 230 are all located within the upper insulation box 500, ensuring that the upper connecting pipe 230, which has lower heat resistance, is completely contained within the upper insulation box 500, thus guaranteeing its heat resistance performance.

[0049] In one embodiment of the tower-type solar thermal power generation absorber of this utility model, the heat resistance of the material of the heat-absorbing pipe 110 is greater than that of the materials of the lower header 300 and the lower connecting pipe 330, thereby reducing the manufacturing cost of the absorber. The connection points between the lower connecting pipe 330, the lower header 300, and the heat-absorbing pipe 110 and the lower connecting pipe 330 are all located within the lower insulation box 600, ensuring that the lower connecting pipe 330, which has lower heat resistance, is completely contained within the lower insulation box 600, thus guaranteeing the heat resistance performance of the lower connecting pipe 330.

[0050] In one embodiment of the tower-type solar thermal power generation absorber of this utility model, the upper connecting pipe, lower connecting pipe, upper header, and lower header are made of the same material. The upper connecting pipe and upper header, as well as the lower connecting pipe and lower header, are typically fixed by welding; using the same material improves the reliability of the welding. The tower-type solar thermal power generation absorber of this utility model, by setting the absorber tubes as a spiral structure surrounding the axis of the tube screen, with each absorber tube wrapping around the tube screen at least once, allows each absorber tube to receive 360° of sunlight. Weather conditions or cloud cover effects simultaneously affect all absorber tubes in the same tube screen, reducing the temperature difference among the absorber tubes and making the heating of all absorber tubes in the same tube screen more uniform. This effectively reduces thermal stress in the same tube screen, thereby reducing the risk of absorber tube bursting. It simplifies the control system and control logic, reduces the impact of clouds during operation, reduces control equipment and operating costs, and improves the safety, economy, and stability of solar thermal power generation.

[0051] The above embodiments are merely illustrative of the principles and effects of this utility model and are not intended to limit the scope of this utility model. Any person skilled in the art can modify or alter the above embodiments without departing from the spirit and scope of this utility model. Therefore, all equivalent modifications or alterations made by those skilled in the art without departing from the spirit and technical concept disclosed in this utility model should still be covered by the claims of this utility model.

Claims

1. A tower solar thermal power generation heat absorber characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

2. The tower solar thermal power generation heat receiver according to claim 1, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

3. The tower solar thermal power generation heat receiver according to claim 2, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

4. The tower solar thermal power generation heat receiver according to claim 3, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

5. The tower solar thermal power generation heat receiver according to claim 1, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

6. The tower solar thermal power generation heat receiver according to claim 5, characterized by The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

7. The tower solar thermal power generation heat receiver according to claim 5, characterized by The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

8. The tower solar thermal power generation heat receiver according to claim 7, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

9. The tower solar thermal power generation heat receiver according to claim 7, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

10. The tower solar thermal power generation heat receiver according to any one of claims 7 to 9, characterized by, The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box. The utility model relates to a heat absorption tube and upper and lower headers for a heat exchanger, and more particularly to a heat absorption tube and upper and lower headers for a heat exchanger with a heat preservation box.

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