A heat sink

Abstract

The present application relates to the technical field of solar thermal power generation, and provides a heat absorber, which comprises a plurality of heat absorber modules and at least two fixing platforms for mounting the heat absorber modules; each fixing platform can accommodate different numbers of heat absorber modules, and the plurality of heat absorber modules are all fixed on one of the fixing platforms; wherein the number of heat absorber modules and the fixing platforms on which the plurality of heat absorber modules are selected to be mounted are determined according to the rated thermal power that the heat absorber needs to have. The heat absorber is suitable for adjusting the size of the heat absorber when the system is designed to be conservative or aggressive at the beginning, or the performance of some equipment is improved due to technical progress at a later stage, and the structure of the heat absorber can be changed into another heat absorber with a larger or smaller size.

Description

Technical Field

[0001] This invention relates to the technical field of solar thermal power generation, and more particularly to a heat absorber. Background Technology

[0002] With the rapid development of the global economy, human demand for energy is also increasing. However, the depletion of traditional non-renewable energy sources is making global economic development increasingly constrained by energy development and utilization. In recent years, the development and utilization of solar energy, as a renewable, clean, and pollution-free energy source, has received increasing attention and importance.

[0003] Solar thermal power generation methods can be classified according to the solar energy collection method into tower solar thermal power generation technology, trough solar thermal power generation technology, linear Fresnel solar thermal power generation technology, and dish solar thermal power generation technology. Among them, tower solar thermal power generation has become a new energy technology with the potential for large-scale development and utilization due to its advantages such as high photoelectric conversion efficiency, high focusing temperature, simple installation and commissioning of the control system, and low heat loss.

[0004] The receiver in tower solar thermal power generation technology is the key device for converting solar radiation energy into heat energy. In traditional receiver structures, once the design scale is determined, the size and structure of the receiver remain fixed. However, if the initial design of the tower solar thermal power generation system is too conservative or too aggressive, or if technological advancements later improve the performance of certain equipment, such as improved mirror cleanliness due to enhanced cleaning capabilities, the receiver size may be too small or too large. This could result in lower heat collection capacity or lower receiver efficiency, thus affecting the economics of the power plant. Summary of the Invention

[0005] To address the aforementioned problems, the present invention aims to provide a heat absorber that is suitable for situations where the system design was initially conservative or aggressive, or where technological advancements later improved the performance of certain equipment, and the size of the heat absorber needs to be adjusted. In such cases, the structure of the heat absorber can be modified into another heat absorber of a larger or smaller size.

[0006] The above-mentioned objective of the present invention is achieved through the following technical solution:

[0007] A heat absorber includes: a plurality of heat absorber modules and at least two fixed platforms for mounting the heat absorber modules; each fixed platform can accommodate a different number of heat absorber modules, and the plurality of heat absorber modules are all fixed on one of the fixed platforms; wherein the number of heat absorber modules and the fixed platforms on which the plurality of heat absorber modules are selected for mounting are determined based on the rated thermal power required by the heat absorber.

[0008] Furthermore, the number of absorber module fixing positions in the fixed platform selected for installation of several of the absorber modules is the same as the number of absorber modules to be installed.

[0009] Furthermore, all the fixed platforms are concentrically arranged with the same center but different radii; the fixed platforms are selected according to the number of heat absorber modules to fix the heat absorber modules, and several heat absorber modules are circumferentially fixed on the fixed platforms, with adjacent heat absorber modules fixedly connected to each other.

[0010] Furthermore, the heat absorber module includes: a heat absorber panel, an upper header, a lower header, an upper fixing unit, and a lower fixing unit;

[0011] The upper header is connected to the upper end of the absorber panel, and the lower header is connected to the lower end of the absorber panel.

[0012] The upper fixing unit is connected to the top surface of the upper header, and the lower fixing unit is connected to the bottom surface of the lower header. The upper fixing unit and the lower fixing unit are used to fix the heat absorber module to the fixing platform.

[0013] Furthermore, the heat absorber module also includes: a back support unit;

[0014] The back support unit is located on the back of the absorber panel and is used to support the absorber module.

[0015] Furthermore, the back support unit is fixedly provided with several fixing ears, and adjacent heat absorber modules are fixedly connected to each other through the fixing ears.

[0016] Furthermore, the fixed platform includes: an upper fixed platform unit and a lower fixed platform unit;

[0017] The upper fixed platform unit is connected to the upper fixed unit, and the lower fixed platform unit is connected to the lower fixed unit.

[0018] Furthermore, the heat absorber module also includes an upper connecting pipe and a lower connecting pipe, the upper connecting pipe being connected to the upper header and the lower connecting pipe being connected to the lower header; the fixed platform also includes an upper platform connecting pipe and a lower platform connecting pipe; the upper connecting pipe is connected to the upper platform connecting pipe and the lower connecting pipe is connected to the lower platform connecting pipe.

[0019] Furthermore, the upper fixing unit includes an upper fixing plate, an upper through hole, an upper operating door, and a lifting hole; the upper fixing plate is used to fix it to the upper fixing platform unit, the upper through hole is used to connect pipes through the upper platform, the upper operating door is used to facilitate access to the interior of the upper fixing unit for disassembly or installation of the upper fixing unit and the upper fixing platform unit, and the lifting hole is used to suspend the heat absorber module when disassembling or installing the heat absorber module.

[0020] Furthermore, the lower fixing unit includes a lower fixing plate, a lower through hole, a lower operating door, and a moving structure; the lower fixing plate is used to fix it to the lower fixing platform unit, the lower through hole is used to connect pipes through the lower platform, the lower operating door is used to facilitate entry into the lower fixing unit for disassembly or installation of the lower fixing unit and the lower fixing platform unit, and the moving structure is used to move the heat absorber module when disassembling or installing the heat absorber module.

[0021] Furthermore, it also includes: a tower crane; the tower crane is used to lift the heat absorber module during disassembly and installation of the heat absorber module.

[0022] Compared with the prior art, the present invention has the following beneficial effects:

[0023] (1) The number of receiver modules is dynamically adjusted according to the performance requirements of the tower solar thermal power generation equipment, and various fixed platforms of different specifications are set up to fix different numbers of receiver modules. The size of the receiver can be increased or decreased through simple disassembly and movement.

[0024] (2) The heat absorber module of the present invention is an independent structure with modular design. When the size of the heat absorber needs to be increased or decreased, it can be quickly disassembled and assembled, reducing the maintenance difficulty of the heat absorber.

[0025] (3) When the size of the absorber is too small, increase the number of absorber modules and move them to a larger fixed platform, thus increasing the absorber area and consequently increasing its heat collection capacity. When the size of the absorber is too large, reduce the number of absorber modules and move them to a smaller fixed platform, thus reducing the absorber area and consequently improving its efficiency. Dynamically adjust the size of the absorber to improve the project's economic efficiency. Attached Figure Description

[0026] Figure 1 This is a schematic diagram of the heat absorber module of the present invention;

[0027] Figure 2 This is a schematic diagram of the fixing bracket of the present invention;

[0028] Figure 3This is a schematic diagram showing the combination and fixing of several heat absorber modules according to the present invention;

[0029] Figure 4 This is a schematic diagram of a single fixed platform of the present invention;

[0030] Figure 5 This is a schematic diagram showing the size variation of the heat absorber of the present invention.

[0031] Figure Labels

[0032] 1000, Heat absorber module; 2000, Mounting bracket;

[0033] 1100, Heat absorber panel; 1210, Upper header; 1211, Upper connecting pipe; 1220, Lower header; 1221, Lower connecting pipe; 1310, Upper fixing unit; 1320, Lower fixing unit; 1400, Back support unit; 1410, Fixing lug;

[0034] 1311. Upper fixing plate; 1312. Upper through hole; 1313. Upper operating door; 1314. Lifting hole;

[0035] 1321. Lower fixed plate; 1322. Lower through hole; 1323. Lower operating door; 1324. Moving structure;

[0036] 2100, Fixed platform;

[0037] 2110. Upper fixed platform unit; 2120. Lower fixed platform unit;

[0038] 2101. First fixed platform; 2102. Second fixed platform;

[0039] 2201. Connecting pipes to the upper platform; 2202. Connecting pipes to the lower platform;

[0040] 2300, Tower crane. Detailed Implementation

[0041] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0042] Those skilled in the art will understand that, unless specifically stated otherwise, the singular forms “a,” “an,” “the,” and “the” used herein may also include the plural forms. It should be further understood that the term “comprising” as used in this specification means the presence of the stated features, integers, steps, operations, elements, and / or components, but does not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0043] Traditional receiver structures, once the scale of the heat absorption system is determined, have fixed dimensions and structures. However, technological innovations can improve the performance of certain equipment (e.g., improved cleaning efficiency of mirrors due to enhanced cleaning vehicles), leading to receivers that are too small or too large. This affects the receiver's heat collection capacity or efficiency. When the receiver is designed to be too small, the system's heat collection capacity is insufficient, resulting in significant wasted solar energy, reduced power generation, and consequently, lower project economics. The present invention addresses this by increasing the number of receiver modules to increase the receiver area, thus increasing the system's heat collection capacity and improving project economics. Conversely, when the receiver is designed to be too large, the excessive area leads to higher heat loss, reducing efficiency and further lowering project economics. The present invention addresses this by reducing the number of receiver modules to decrease the receiver area, thereby increasing efficiency and improving project economics.

[0044] First Embodiment

[0045] like Figure 1 and Figure 2 As shown, this embodiment provides a heat absorber, including: a plurality of heat absorber modules 1000 and at least two fixed platforms 2100 for mounting the heat absorber modules 1000, which are fixed by fixed brackets 2000; each fixed platform 2100 can accommodate a different number of heat absorber modules 1000, and the plurality of heat absorber modules 1000 are all fixed on one of the fixed platforms 2100, wherein the number of heat absorber modules 1000 and the fixed platform 2100 on which the plurality of heat absorber modules 1000 are selected for mounting are determined according to the rated thermal power required by the heat absorber.

[0046] Preferably, the number of absorber module fixing positions in the fixing platform 2100 on which a plurality of absorber modules 1000 are selected for installation is the same as the number of absorber modules 1000 to be installed.

[0047] Each receiver module 1000 is a modular, detachable, and movable independent structure, and the number of receiver modules 1000 in the receiver can be dynamically adjusted according to the performance requirements of the receiver.

[0048] In addition to the dynamically adjustable number of absorber modules 1000, the absorber also includes a mounting bracket 2000 fixed to the top platform of the absorber tower. The mounting bracket 2000 has at least two mounting platforms 2100 capable of securing different numbers of absorber modules 1000. Based on the absorber's requirement for the number of absorber modules 1000, a matching mounting platform 2100 is selected to secure the absorber modules.

[0049] like Figure 2 The image shows an example of a mounting bracket 2000 with two mounting platforms 2100 of different specifications (a first mounting platform 2101 and a second mounting platform 2102, the specifications of the two mounting platforms differing by two absorber module mounting positions). However, in actual design, more specifications of mounting platforms 2100 can be reserved. Figure 2 Initially, receiver modules 1000 are installed on receiver module mounting positions 2101a, 2101b, ..., 2101l of the first fixed platform 2101. When the receiver size needs to be increased, all receiver modules 1000 on the fixed platform 2101 are removed, moved, and installed on receiver module mounting positions 2102a, 2102b, ..., 2102l of the second fixed platform 2102. The two additional receiver modules 1000 are then moved and installed on receiver mounting positions 2102m and 2102n of the second fixed platform. When the receiver size needs to be reduced, the required receiver modules 1000 are moved from the second fixed platform 2102 to the first fixed platform 2101 using the same method, and the excess receiver modules 1000 are moved to the ground and stored.

[0050] Furthermore, in a preferred embodiment, all the fixed platforms 2100 are concentrically arranged on the fixed bracket 2000 with the same center but different radii. The fixed platforms 2000 are selected to fix the heat absorber modules 1000 according to the number of modules, such as... Figure 3 As shown, several heat absorber modules 1000 are circumferentially fixed on the fixed platform 2000, and adjacent heat absorber modules 1000 are fixedly connected to each other.

[0051] Specifically, a preferred embodiment of the present invention is to design at least two fixed platforms 2100 of different specifications as concentric circles with different radii. Using this embodiment, after selecting a matching number of fixed platforms 2100, the absorber modules 1000 are fixed to the fixed platforms 2100 circumferentially, end to end, with the center of each fixed platform 2100 as the center. Adjacent absorber modules 1000 are then fixedly connected to each other to increase the stability of the absorber structure.

[0052] Furthermore, each of the heat absorber modules 1000 specifically includes the following structure: a heat absorber panel 1100, an upper header 1210, a lower header 1220, an upper fixing unit 1310, and a lower fixing unit 1320; the upper header 1210 is connected to the upper end of the heat absorber panel 1100, and the lower header 1220 is connected to the lower end of the heat absorber panel 1100; the upper fixing unit 1310 is connected to the top surface of the upper header 1210, and the lower fixing unit 1320 is connected to the bottom surface of the lower header 1210; the upper fixing unit 1310 and the lower fixing unit 1320 are used to fix the heat absorber module 1000 to the fixing platform 2100.

[0053] Furthermore, the absorber module 1000 also includes a back support unit 1400; the back support unit 1400 is disposed on the back of the absorber panel 1100 and is used to support the absorber module 1000. The back support unit 1400 is a reinforcing structure of the absorber module 1000, used to enhance the stability of the absorber module 1000. A plurality of fixing ears 1410 are fixedly disposed on the back support unit 1400, and adjacent absorber modules 1000 are fixedly connected to each other through the fixing ears 1410. The connection method between the fixing ears 1410 and the back support unit 1400 can be different fixing connection methods such as welding or screw connection.

[0054] Furthermore, in order to securely fix the heat absorber module 1000, the fixing platform 2100, such as Figure 4 As shown, it further comprises: an upper fixed platform unit 2110 and a lower fixed platform unit 2120; the upper fixed platform unit 2110 is connected to the upper fixed unit 1310 of the heat absorber module 1000, and the lower fixed platform unit 2120 is connected to the lower fixed unit 1320 of the heat absorber module 1000.

[0055] It should be noted that at least two fixing platforms 2100 capable of fixing different numbers of the heat absorber modules 1000, such as the first fixing platform 2101 and the second fixing platform 2102, are respectively provided with an upper fixing platform unit 2110 and a lower fixing platform unit 2120 of the same specifications located on the same vertical plane.

[0056] Furthermore, the heat absorber module 1000 further includes an upper connecting pipe 1211 and a lower connecting pipe 1221, wherein the upper connecting pipe 1211 is connected to the upper header 1210, and the lower connecting pipe 1221 is connected to the lower header 1220; the fixed platform 2100 further includes an upper platform connecting pipe 2201 and a lower platform connecting pipe 2202; the upper connecting pipe 1211 is connected to the upper platform connecting pipe 2201, and the lower connecting pipe 1310 is connected to the lower platform connecting pipe 2202. Specifically, the upper connecting pipe 1211 and the lower connecting pipe 1221, as well as the upper platform connecting pipe 2201 and the lower platform connecting pipe 2202, can be flanged pipes, connected through flanges.

[0057] Furthermore, the upper fixing unit 1310 includes an upper fixing plate 1311, an upper through hole 1312, an upper operating door 1313, and a lifting hole 1314. The upper fixing plate 1311 is used to fix the upper fixing platform unit 2110, and is generally fixed to the upper fixing plate 1311 and the upper fixing platform unit 2110 by fixing bolts. The upper through hole 1312 is used to connect the pipe 2201 through the upper platform. The upper operating door 1313 is used to facilitate the operator to enter the interior of the upper fixing unit 1310 to disassemble or install the upper fixing unit 1310 and the upper fixing platform unit 2110. The lifting hole 1314 is used to suspend the heat absorber module 1000 when disassembling or installing the heat absorber module 1000 to prevent the heat absorber module 1000 from tipping over.

[0058] Further, the lower fixing unit 1320 includes a lower fixing plate 1321, a lower through hole 1322, a lower operating door 1323, and a moving structure 1324; the lower fixing plate 1321 is used to fix with the lower fixing platform unit 2120, generally by fixing bolts on the lower fixing plate 1321 and the lower fixing platform unit 2120; the lower through hole 1322 is used to connect the pipe 2202 through the lower platform; the lower operating door 1323 is used to facilitate the operator to enter the lower fixing unit 1320 to disassemble or install the lower fixing unit 1320 and the lower fixing platform unit 2120; the moving structure 1324 is used to move the heat absorber module 1000 when disassembling or installing the heat absorber module 1000.

[0059] Furthermore, the fixed support 2000 also includes a tower crane 2300, which is used to lift the heat absorber module 1000 when disassembling and installing it on the heat absorber module 1000.

[0060] The size of the receiver is increased or decreased by using a tower crane 2300, lifting holes 1314, and a moving structure 1324 in conjunction with the lifting tower 2300. Taking a fixed support 2000 with two fixed platforms 2100 (first fixed platform 2101 and second fixed platform 2102) as an example, the specific process is as follows: The receiver consists of N receiver modules 1000. When the size of the receiver needs to be increased, the tower crane 2300 is suspended from the lifting holes 1314 to prevent tipping after all the fixing bolts are loosened. Then, the upper fixed unit 1310 and lower fixed unit 1320 are entered through the upper operating door 1313 and lower operating door 1323, and the fixing bolts on the upper fixed plate 1311 and lower fixed plate 1321 are loosened. Then, the back support unit 1400 is entered, and all the bolts on the fixing ears 1410 are loosened. After all the bolts are loosened, the tower crane 2300 slowly lifts the receiver module 1000, and at the same time lowers the moving structure 1324. After the structure 1324 is fully lowered, the moving structure 1324 moves the receiver module 1000 from the first fixed platform 2101 to the second fixed platform 2102. The bolt holes on the upper fixed plate 1311 and the lower fixed plate 1321 are aligned with the bolt holes on the upper fixed platform unit 2110 and the lower fixed platform unit 2120, and the bolts are tightened. After all the bolts are tightened, the second receiver module 1000 is installed in the adjacent position of the first receiver module 1000 in the same manner, and the bolts of the fixing ears 1410 of the two receiver modules 1000 are tightened. After all N receiver modules 1000 are installed on the second fixed platform 2102, the receiver modules 1000 that need to be added are hoisted to the top of the tower using the tower crane 2300. All M receiver modules 1000 that need to be added are installed on the second fixed platform 2102 in the same way to increase the size of the receiver. Conversely, when the size of the receiver needs to be reduced, the required receiver module 1000 is moved from the second fixed platform 2102 to the first fixed platform 2102 in the same way, and the excess receiver module 1000 is hoisted to the ground by the tower crane 2300 and stored in the warehouse.

[0061] Second Embodiment

[0062] like Figure 5As shown, this is a receiver structure that increases (or decreases) from 6 (or 8) receiver modules to 8 (or 6) receiver modules 1000. Taking the increase from 6 to 8 receiver modules 1000 as an example, due to some reason, in actual application, the energy projected by the mirror field is about 1 / 3 smaller than the receiver size, so it is necessary to increase the 6 receiver modules 1000 to 8 receiver modules 1000. First, use the tower crane 2300 to hook onto the lifting hole 1314, and remove all the fixing bolts connected to 2101a on the first fixed platform 2101. Then, slowly lift the absorber module 1000 while simultaneously lowering the moving structure 1324. After the moving structure 1324 is fully lowered, use the tower crane 2300 and the moving structure 1324 to move the absorber module 1000 to the preset position of the absorber module 1000 at 2102a, aligning it with all the bolt holes. Then, retract the moving structure 1324 and finally fix the absorber module 1000 with bolts. Similarly, move all other modules 2101b, ..., 2101f to their corresponding positions 2102b, ..., 2102f using the same steps and fix them with bolts. After all six receiver modules 1000 are installed on the second fixed platform 2102, the two additional receiver modules 1000 that need to be added are hoisted to the top of the tower using the tower crane 2300. The two additional receiver modules 1000 that need to be added are installed on 2102g and 2102h in the same way to increase the size of the receiver.

[0063] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiments. All technical solutions falling within the scope of the present invention's concept are within the scope of protection of the present invention. It should be noted that for those skilled in the art, any improvements and modifications made without departing from the principles of the present invention should also be considered within the scope of protection of the present invention.

[0064] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0065] It should be noted that the above embodiments can be freely combined as needed. The above description is only a preferred embodiment of the present invention. It should be pointed out that for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present invention, and these improvements and modifications should also be considered within the scope of protection of the present invention.

Claims

1. A heat sink, characterized by The heat absorber comprises: a plurality of heat absorber modules and at least two fixing platforms for mounting the heat absorber modules; each of the fixing platforms can accommodate different numbers of the heat absorber modules, and each of the heat absorber modules is fixed to one of the fixing platforms; wherein the number of the heat absorber modules and the fixing platforms on which the heat absorber modules are mounted are determined according to the rated thermal power required by the heat absorber.

2. The heat absorber of claim 1, wherein The fixing positions of the heat absorber modules in the fixing platforms on which the heat absorber modules are mounted are the same as the number of the heat absorber modules to be mounted.

3. The heat absorber of claim 1, wherein, All the fixing platforms are concentrically arranged with the same center and different radii. The heat absorber modules are fixed on the fixing platforms matched according to the number of the heat absorber modules, and the adjacent heat absorber modules are fixedly connected to each other.

4. The heat absorber of claim 1, wherein The heat absorber module comprises a heat absorber panel, an upper header tank, a lower header tank, an upper fixing unit and a lower fixing unit. The upper header tank is in communication with the upper end of the heat absorber panel, and the lower header tank is in communication with the lower end of the heat absorber panel. The upper fixing unit is connected to the top surface of the upper header tank, and the lower fixing unit is connected to the bottom surface of the lower header tank, and the upper fixing unit and the lower fixing unit are used for fixing the heat absorber module to the fixing platform.

5. The heat absorber of claim 4, wherein, The heat absorber module further comprises a back support unit. The back support unit is arranged on the back of the heat absorber panel and is used for supporting the heat absorber module.

6. The heat absorber of claim 5, wherein A plurality of fixing ears are fixedly arranged on the back support unit, and the adjacent heat absorber modules are fixedly connected to each other through the fixing ears.

7. The heat absorber of claim 4, wherein The fixing platform comprises an upper fixing platform unit and a lower fixing platform unit. The upper fixing platform unit is connected to the upper fixing unit, and the lower fixing platform unit is connected to the lower fixing unit.

8. The heat absorber of claim 7, wherein The heat absorber module further comprises an upper connecting pipeline and a lower connecting pipeline, the upper connecting pipeline is in communication with the upper header tank, and the lower connecting pipeline is in communication with the lower header tank. The fixing platform further comprises an upper platform connecting pipeline and a lower platform connecting pipeline. The upper connecting pipeline is in communication with the upper platform connecting pipeline, and the lower connecting pipeline is in communication with the lower platform connecting pipeline.

9. The heat absorber of claim 8, wherein The upper fixing unit comprises an upper fixing plate, an upper through hole, an upper operating door and a lifting hole; The upper fixing plate is used for fixing the upper fixing platform unit, the upper through hole is used for passing through the upper platform connecting pipeline, the upper operating door is used for facilitating the dismounting or mounting of the upper fixing unit and the upper fixing platform unit, and the lifting hole is used for lifting the heat absorber module when the heat absorber module is dismounted or mounted; The lower fixing unit comprises a lower fixing plate, a lower through hole, a lower operating door and a moving structure. The lower fixed plate is used for fixing with the lower fixed platform unit, the lower through hole is used for passing the lower platform connecting pipe, the lower operation door is used for facilitating access to the inside of the lower fixed unit to dismount or install the lower fixed unit and the lower fixed platform unit, and the moving structure is used for moving the heat absorber module when the heat absorber module is dismounted or installed.

10. The heat absorber of claim 1, wherein Also comprising: A tower top crane; The tower top crane is used for hoisting the heat absorber module when the heat absorber module is dismounted or installed.

Images