A layered hoisting device for heat collecting tubes

Abstract

This invention discloses a layered lifting device for solar collector tubes, comprising a lifting frame with end beams and lifting beams, a clamping frame for securing the layered solar collector tube assembly, and a lifting device providing lifting power. The lifting frame includes longitudinal beams, transverse beams, and end beams assembled as a whole. The end beams have downwardly extending lifting beams, and the ends of the lifting beams have lifting clamping holes corresponding to the lifting holes of the solar collector tube fixing brackets. Lifting pins can also be inserted into both ends of the end beams. The clamping frame includes a main beam parallel to the end beams, with vertical beams extending upwards from the upper surface of the main beams. Clamping beams extend horizontally from the vertical beams towards the solar collector tube fixing brackets. Multiple clamping pins corresponding to the lifting clamping holes are provided on the side of the main beam facing the solar collector tube fixing brackets. The clamping pins can sequentially pass through the lifting clamping holes and lifting beams, thereby clamping the clamping frames at both ends of the lifting frame to secure the layered solar collector tube assembly. This layered lifting device for solar collector tubes can achieve both overall lifting of the solar collector tube storage and transportation device and layered lifting.

Description

Technical Field

[0001] This invention relates to the field of trough solar thermal power generation technology, and in particular to a layered hoisting device for heat collector tubes. Background Technology

[0002] As environmental issues receive increasing attention worldwide, the development and utilization of new energy sources have become a future trend. Among them, concentrated solar power (CSP) technology has moved from theory to reality. Currently, the main development directions of new energy are CSP, photovoltaic power, wind power, and hydropower. CSP currently mainly includes parabolic trough and tower solar thermal power generation. Parabolic trough solar thermal power generation can maintain the stability of power generation day and night and is one of the mainstream directions for future new energy development.

[0003] Parabolic trough solar thermal power generation utilizes parabolic trough reflectors to generate solar thermal power. It involves arranging numerous parabolic trough concentrators in series and parallel to collect high-temperature heat energy, which heats the working medium to generate steam to drive a steam turbine generator set. The parabolic trough concentrators are made of glass tubes, a fragile material that cannot be stacked and transported in large quantities. To promote the application of parabolic trough solar thermal power generation, there is an urgent need to develop a tube hoisting device for facilitating the hoisting and transport of the tubes in parabolic trough solar thermal power generation systems. Summary of the Invention

[0004] The main technical problem solved by this invention is to provide a layered hoisting device for heat collector tubes, which can improve the efficiency of hoisting heat collector tubes to the heat collector tube storage and transportation device.

[0005] To address the aforementioned technical problems, in a first aspect, the present invention provides a layered lifting device for solar collector tubes, used for lifting a solar collector tube storage and transportation device having multiple solar collector tube fixing brackets. The layered lifting device for solar collector tubes includes:

[0006] Lifting device, providing lifting power;

[0007] The hoisting frame includes two end beams. Multiple downward-extending hoisting beams are provided on the end beams at both ends of the hoisting frame. The ends of the hoisting beams are provided with hoisting locking holes corresponding to the hoisting holes of the heat collector tube fixing bracket. Hoisting pins can also be inserted into both ends of the end beams to detachably connect the heat collector tube storage and transportation device.

[0008] The lifting device is detachably connected to the hoisting frame to allow for the replacement of hoisting frames of different specifications.

[0009] In one or more optional embodiments, the hoisting frame further includes a plurality of longitudinal beams that are assembled longitudinally and transversely into a whole and fixedly connected to the end beams, and a plurality of transverse beams fixedly connected between the plurality of longitudinal beams, wherein the end beams are fixedly connected to both ends of the plurality of longitudinal beams.

[0010] In one or more optional embodiments, the layered hoisting device for the heat collection tubes further includes:

[0011] The hoisting rope includes a connecting end and a lifting end. The connecting end is detachably connected to the hoisting frame, and the lifting end is used to connect to the hook of the hoisting device.

[0012] A lifting ring, used to connect the lifting end of the lifting rope to the lifting hook;

[0013] The lifting device is connected in sequence to the lifting ring, the lifting rope, and the heat collection tube receiving and transporting device in the direction of gravity.

[0014] In one or more alternative embodiments, the heat collector tube layered hoisting device further includes a clamping frame that can clamp two sets of heat collector tube fixing brackets that are snapped together and filled with heat collector tubes from both ends of the hoisting frame.

[0015] In one or more alternative embodiments, the card holder includes:

[0016] The main beam is arranged parallel to the end beam, and has multiple locking pins corresponding to the hoisting holes on the side facing the heat collector tube fixing bracket.

[0017] A vertical beam extends upward from the upper surface of the main beam;

[0018] A snap-fit ​​beam extends horizontally from the vertical beam toward the side of the heat collector tube fixing bracket;

[0019] The locking pin can pass through the lifting locking hole and the lifting hole in sequence.

[0020] In one or more alternative embodiments, the end of the snap pin is provided with a slot for resiliently snapping the snap ring.

[0021] Secondly, the present invention also provides a layered hoisting device for solar collector tubes, used for hoisting the layered solar collector tube assembly to a solar collector tube storage and transportation device, characterized in that it comprises:

[0022] Lifting device, providing lifting power;

[0023] The collector tube fixing bracket is used to restrict the rolling and horizontal movement of the collector tube. Two adjacent collector tube fixing brackets can be pinned and aligned to each other. Multiple collector tube fixing brackets can be stacked sequentially in the height direction.

[0024] The lifting rope has a detachable connection end to the collector tube fixing bracket and a lifting end for connecting to the lifting hook of the lifting device.

[0025] A lifting ring, used to connect the lifting end of the lifting rope to the lifting hook;

[0026] The lifting device is connected in sequence to the lifting ring, the lifting rope, and the heat collector tube fixing bracket against the direction of gravity.

[0027] In one or more optional embodiments, the heat collection tube stacking device includes at least two heat collection tube fixing brackets and heat collection tubes for receiving heat collection tubes, with multiple heat collection tube fixing brackets stacked sequentially.

[0028] In one or more optional embodiments, the heat collector tube fixing bracket is provided with a fixing member for stacking and fixing the heat collector tube fixing bracket, the fixing member including an upper end with a fixing structure and a lower end with a mating structure that mates with the fixing structure.

[0029] In one or more optional embodiments, the heat collector tube fixing bracket is provided with spaced-apart limiting grooves and limiting protrusions. The limiting grooves restrict the heat collector tube from moving laterally in a direction parallel to the heat collector tube fixing bracket, and the limiting protrusions restrict the heat collector tube from moving longitudinally in a direction perpendicular to the heat collector tube fixing bracket.

[0030] In one or more alternative embodiments, the fixing structure includes a fixing hole, and the mating structure includes a fixing post that can be received in the fixing hole, the end of the fixing post being tapered.

[0031] In one or more alternative embodiments, the mating structure further includes a limiting step that restricts the distance between the two collector tube fixing brackets when stacked.

[0032] In one or more optional embodiments, the heat collector tube fixing bracket is provided with a lifting hole, which is located at 1 / 4, 2 / 4 and 3 / 4 of the length of the heat collector tube fixing bracket, or at 1 / 4 and 3 / 4.

[0033] In one or more optional embodiments, the bottom of the collector tube fixing bracket on the side opposite to the collector tube is provided with a lifting groove, which is located at 1 / 4, 2 / 4 and 3 / 4 of the length of the collector tube fixing bracket, or at 1 / 4 and 3 / 4.

[0034] In one or more optional embodiments, the heat collection tube fixing bracket is provided with a lifting hole, which is located at 1 / 4, 2 / 4 and 3 / 4, or at 1 / 4 and 3 / 4.

[0035] In one or more optional embodiments, the top two ends of the collector tube fixing bracket facing the collector tube are provided with limiting grooves, and the collector tube layering device further includes at least two limiting rods for limiting the torsion of the collector tube fixing bracket, the limiting rods being engaged in the limiting grooves.

[0036] This invention discloses a layered lifting device for solar collector tubes, used for lifting and transporting solar collector tube storage devices. It includes a lifting frame with end beams and lifting beams, a clamping frame for securing the layered solar collector tube assembly, and a lifting device for providing lifting power. The lifting frame comprises longitudinal beams, transverse beams, and end beams assembled as a whole. The end beams at both ends are provided with downwardly extending lifting beams. The ends of the lifting beams are provided with lifting clamping holes corresponding to the lifting holes of the solar collector tube fixing brackets. Lifting devices can also be inserted into the ends of the end beams. The mounting bracket includes a main beam parallel to the end beam, a vertical beam extending upward from the upper surface of the main beam, and a horizontally extending mounting beam from the vertical beam toward the collector tube fixing bracket that is mounted on the mounting bracket. The main beam has multiple mounting pins corresponding to the lifting holes on one side facing the collector tube fixing bracket. The mounting pins can pass sequentially through the lifting holes and lifting openings, allowing the two ends of the mounting bracket to hold two sets of mounting brackets that are mounted on the collector tube fixing brackets filled with collector tubes.

[0037] Another type of solar collector tube layered hoisting assembly of the present invention is used to hoist the solar collector tube layered installation device to the solar collector tube storage and transportation device. It includes a hoisting device providing hoisting power, a solar collector tube fixing bracket, a hoisting rope, and a hoisting ring. The solar collector tube fixing bracket is used to restrict the rolling and horizontal movement of the solar collector tubes. Two adjacent solar collector tube fixing brackets can be pinned together for alignment and fixation. Multiple solar collector tube fixing brackets can be stacked sequentially in the height direction. The connecting end of the hoisting rope is detachably connected to the solar collector tube fixing bracket, and the lifting end of the hoisting rope is used to connect to the hook of the hoisting device. The hoisting ring is used to connect the lifting end of the hoisting rope and the hook. The hoisting device connects the hoisting ring, the hoisting rope, and the solar collector tube fixing bracket sequentially against the direction of gravity.

[0038] The beneficial effects of this invention are as follows: The layered lifting device for solar collector tubes disclosed in this invention can achieve both the overall lifting of the solar collector tube storage and transportation device and the layered lifting of the solar collector tube assembly. This facilitates batch transportation and rapid installation, improving the reliability and efficiency of solar collector tube lifting. Furthermore, the layered lifting device adopts a detachable structure, allowing for disassembly after transportation, reducing the overall transportation volume, saving transportation space, and lowering transportation costs. Attached Figure Description

[0039] To more clearly illustrate the technical solutions in the embodiments of the present invention 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 in the description only show some embodiments of the present invention, and therefore should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.

[0040] Figure 1This is a schematic diagram of the lifting frame of the layered lifting device for the heat collection tubes of the present invention.

[0041] Figure 2 This is a schematic diagram of an embodiment of the layered hoisting device for heat collection tubes of the present invention.

[0042] Figure 3 This is a schematic diagram of the device for hoisting, storing, and transporting heat collector tubes using the layered hoisting device of the present invention.

[0043] Figure 4 for Figure 3 Partial diagram of the top center.

[0044] Figure 5 This is a schematic diagram of a heat collector tube storage and transportation device that uses the heat collector tube layer lifting device of the present invention for lifting.

[0045] Figure 6 A schematic diagram of the structure after the collector tubes are fixed in the heat collection and transportation device.

[0046] Figure 7 for Figure 6 A magnified schematic diagram of the local structure at point A in the middle.

[0047] Figure 8 This is a schematic diagram of another embodiment of the layered hoisting device for heat collection tubes of the present invention.

[0048] Figure 9 This is a schematic diagram of another embodiment of the heat collector tube layer hoisting device of the present invention, showing the hoisting of an entire layer of heat collector tubes to the heat collector tube storage and transportation device.

[0049] Figure 10 This is a schematic diagram of another embodiment of the layered hoisting device for heat collection tubes of the present invention.

[0050] Explanation of reference numerals in the attached figures:

[0051] 100. Heat collector tube storage and transportation device;

[0052] 1. Main rod connecting cover plate;

[0053] 2. Protective frame; 21. Connecting plate; 211. Snap-fit ​​notch; 22. Longitudinal connecting rod; 23. Transverse connecting rod; 24. Fastening screws;

[0054] 3. Short diagonal brace assembly;

[0055] 4. Long diagonal brace assembly;

[0056] 5. Protective frame; 51. Connecting plate; 511. Snap-fit ​​notch; 52. Longitudinal connecting rod; 53. Transverse connecting rod; 54. Fastening screws;

[0057] 6. Main lever;

[0058] 7. Heat collector tube fixing bracket; 71. Upper positioning pin; 72. Lower positioning pin; 73. Fixing groove; 74. Lifting hole; 75. Fixing protrusion; 76. Lifting groove;

[0059] 8. Pallet frame;

[0060] 9. Load-bearing piers;

[0061] 10. Lifting frame; 101. Longitudinal beam; 102. Crossbeam; 103. End beam; 104. Lifting beam; 1041. Lifting clamp; 105. Lifting ring; 106. Lifting pin; 107. Lifting rope;

[0062] 20. Clip-on bracket; 201. Main beam; 202. Vertical beam; 203. Clip-on beam; 204. Clip-on pin;

[0063] M, heat collection tube.

[0064] The realization of the objectives, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0065] The claims of the present invention will be further described in detail below with reference to specific embodiments and accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are also within the scope of protection of the present invention.

[0066] It should be understood that, in the description of the embodiments of the present invention, all directional indicating terms, such as "up," "down," "left," "right," "front," and "back," indicate the orientation or positional relationship based on the orientation and positional relationship shown in the accompanying drawings or the orientation or positional relationship commonly used when the product is in use. These terms are merely for the purpose of simplifying the description of the present invention and do not explicitly or implicitly suggest that the device, element, or component referred to must have a specific orientation or specific orientational structure, and should not be construed as a limitation of the present invention. They are only used to explain the relative positional relationships and movements between the components shown in the accompanying drawings. When this specific orientation changes, the directional indication may also change accordingly.

[0067] Furthermore, in this invention, ordinal numbers such as "first" and "second" are used for distinguishing purposes only and should not be construed as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Thus, the features referred to as "first" and "second" may explicitly or implicitly include at least one of those technical features. In the description of this invention, "a plurality of" means at least two, i.e., two or more, unless otherwise explicitly defined; "at least one" means one or more.

[0068] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "setting," "connection," "fixing," and "screw-in" should be interpreted broadly. For example, they can refer to a relatively fixed positional relationship between components, or a physically fixed connection between components; they can be detachable connections or integral structures; they can be mechanical connections or electrical signal connections; they can be direct connections or indirect connections through intermediate media or components; they can refer to the internal communication of two elements or the interaction between two elements. Unless otherwise explicitly limited in the specification, other interpretations will not achieve the corresponding functions or effects. For those skilled in the art, the specific meaning of the above terms in this invention can be understood according to the specific circumstances.

[0069] If the controllers or control circuits involved in this invention are conventional control technologies or units for those skilled in the art, such as the control circuits of the controllers, they can be implemented by those skilled in the art using existing methods, such as simple programming. Regarding software or programs that work with hardware to achieve control results, unless the description provides a detailed explanation of the control process of the software or programs involved, this pertains to the use of existing technology or conventional techniques for those skilled in the art. The power supply also employs existing technology in the art. Furthermore, since the main inventive aspect of this invention lies in the improvement of the mechanical device, this invention will not provide a detailed explanation of the specific circuit control relationships and circuit connections.

[0070] This invention discloses many different embodiments or examples for implementing different structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described herein. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples; such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. In addition, examples of various specific processes and materials are provided in this invention, but those skilled in the art will recognize the application of other processes and / or the use of other materials.

[0071] The preferred embodiments of the present invention will be described below with reference to the accompanying drawings. It should be understood that the preferred embodiments described herein are for illustration and explanation only and are not intended to limit the present invention.

[0072] As analyzed in the background section of this application, the efficiency of hoisting the collector tubes to the collector tube storage and transportation device in the prior art is not high. In order to solve the above-mentioned technical problems, this application provides a collector tube layer hoisting device.

[0073] Example 1:

[0074] like Figures 1-4As shown, this invention provides an embodiment of a layered hoisting device for heat collection tubes.

[0075] like Figure 1 , Figure 7 As shown, the layered lifting device for collector tubes is used to lift the collector tube storage and transportation device 100, which has multiple collector tube fixing brackets 7. The layered lifting device for collector tubes includes a lifting device that provides lifting power and a lifting frame 10 that can lift the layered collector tube assembly. The lifting frame 10 includes two end beams 103. Multiple lifting beams 104 extending downward are provided on the end beams 103 at both ends of the lifting frame 103. The ends of the lifting beams 104 are provided with lifting locking holes 1041 corresponding to the lifting holes 74 of the collector tube fixing brackets 7. Lifting pins 106 can also be inserted into both ends of the end beams 103 to detachably connect the collector tube storage and transportation device 100. The lifting device is detachably connected to the lifting frame 10 to replace the lifting frame 10 of different specifications.

[0076] The layered lifting device for solar collector tubes disclosed in this embodiment can achieve both overall lifting of the solar collector tube storage and transportation device and layered lifting of the solar collector tube assembly. This facilitates batch transportation and rapid installation, improving the reliability and efficiency of solar collector tube lifting. Furthermore, the layered lifting device features a detachable structure, allowing for disassembly after transportation, reducing the overall transportation volume, saving transportation space, and lowering transportation costs.

[0077] In some embodiments, such as Figure 1 As shown, the lifting frame 10 also includes multiple longitudinal beams 101, which are assembled longitudinally and transversely into a whole and fixedly connected to the end beams 103, and multiple transverse beams 102, which are fixedly connected between the multiple longitudinal beams 101. The end beams 103 are fixedly connected to both ends of the multiple longitudinal beams 101. The end beams 103 are used to transmit the lifting force of the lifting frame 10 to the heat collector tube stacking device or the clamping frame 20, thereby allowing the lifting frame 10 to lift the entire heat collector tube storage and transportation device 100. The end beams 103, longitudinal beams 101, and transverse beams 102 are assembled longitudinally and transversely into a whole, which improves the rigidity of the entire lifting frame 10 and allows the lifting frame 10 to lift a larger load weight. Here, the end beam 103, longitudinal beam 101, and transverse beam 102 are assembled into a whole in both longitudinal and transverse directions. This can be achieved by direct welding, fastening with screws, bolts, or other fasteners, snap-fitting, or fastening. Any technical solution that can achieve a stable and reliable connection and assembly of the end beam 103, longitudinal beam 101, and transverse beam 102 into a whole in both longitudinal and transverse directions is within the protection scope of this application, and will not be elaborated here.

[0078] In some embodiments, such as Figure 1As shown, the layered lifting device for the solar collector tubes also includes a lifting rope 107 and a lifting ring 105. The lifting rope 107 includes a connecting end (not shown in the figure) and a lifting end (not shown in the figure). The connecting end is detachably connected to the lifting frame 10, and the lifting end is used to connect to the hook of the lifting device. The lifting ring 105 is used to connect the lifting end of the lifting rope 107 and the hook. The lifting device sequentially connects the lifting ring 105, the lifting rope 107, and the solar collector tube receiving and transporting device 100 along the direction of gravity. The flexible lifting rope 107 and the rigid lifting ring 105 achieve flexible connection between the frame 10 and the lifting device.

[0079] In some embodiments, further, such as Figures 2 to 4 As shown, the layered heating tube hoisting device also includes a clamping frame 20 that can hold two sets of pre-assembled and fully loaded heating tube M heating tube fixing brackets at both ends of the hoisting frame 10. The hoisting frame 10 achieves hoisting of the layered heating tube assembly through a detachable connection with the clamping frame 20, which can hold the layered heating tube assembly. The quick-release design between the hoisting frame 10 and the clamping frame 20 improves the hoisting efficiency of the entire layered heating tube hoisting device.

[0080] In some embodiments, further, such as Figure 2 As shown, the snap-fit ​​frame 20 includes a main beam 201 parallel to the end beam 103, a vertical beam 202 extending upward from the upper surface of the main beam, and a snap-fit ​​beam 203 extending horizontally from the vertical beam toward the collector tube fixing bracket. The main beam 201 has multiple snap-fit ​​pins 204 corresponding to the lifting holes 1041 on the side facing the collector tube fixing bracket 7. During the process of lifting the collector tube storage and transportation device 100 using the collector tube layered lifting device, the snap-fit ​​beam 203 abuts against the upper surface of the middle longitudinal beam 101 of the lifting frame 10. Multiple snap-fit ​​pins 204 can sequentially pass through the lifting holes 1041 and the lifting holes 74, and can jointly bear the weight of the entire collector tube layered assembly. The snap-fit ​​of the snap-fit ​​pins 204 on the lifting holes 1041 and the lifting holes 74 enables quick assembly and disassembly of the lifting frame 10, the snap-fit ​​frame 20, and the collector tube layered assembly. The main beam 201 of the clamping frame 20 can smoothly transfer the hoisting example of the heat collector tube fixing bracket 7, which is used to lift the frame after the heat collector tube M is installed, to the entire hoisting frame 10. The vertical beam 202 drives the clamping beam 203 to further transfer the hoisting example of the heat collector tube fixing bracket 7, which is used to lift the frame after the heat collector tube M is installed, to the entire hoisting frame 10 by abutting against the upper surface of the middle longitudinal beam 101 of the hoisting frame 10.

[0081] Furthermore, the end of the locking pin 204 is provided with a slot for elastically engaging a retaining spring. The retaining spring prevents the entire collector tube assembly from slipping off the locking pin 204 due to impact during hoisting. After hoisting into place, the retaining spring, secured in the slot to ensure hoisting safety, can be removed before hoisting the next layer of collector tube assembly. The retaining spring at the end of the locking pin 204 further enhances the safety of the entire collector tube assembly during hoisting.

[0082] It should be noted that the layered hoisting device for the heat collection tubes also includes hoisting pins 106 for connecting the four sets of main support rods. Specifically, as shown... Figure 3 , Figure 4 As shown, after the last layer of collector tubes is hoisted into the collector tube receiving and transporting device 100, if it is necessary to continue hoisting the entire collector tube receiving and transporting device 100, which is filled with collector tubes M, onto a vehicle or other location, the two ends of the end beam 103 of the hoisting frame 10 and the four sets of main support rods can be pinned together using the hoisting pins 106. After the pinning is completed, the hoisting device can lift the hoisting frame 10 and transfer the lifting force to the entire collector tube receiving and transporting device 100 through the hoisting pins 106, thereby enabling subsequent hoisting work. This eliminates the trouble of using a forklift to lift the entire collector tube receiving and transporting device 100 or continuing to pass the hoisting ropes through the hoisting holes 91 on the four load-bearing piers 9, improving hoisting efficiency and increasing the utilization rate of the hoisting frame 10.

[0083] Example 2:

[0084] like Figures 5 to 10As shown, the present invention also provides a layered lifting device for solar collectors, used to lift the layered solar collector assembly to a solar collector storage and transportation device. The layered lifting device includes a lifting device providing lifting power, a solar collector fixing bracket 7 for fixing the solar collector M, a lifting rope 107 with its connecting end detachably connected to the solar collector fixing bracket 7, and a lifting ring 105 for connecting the lifting end of the lifting rope 107 to the hook of the lifting device. The solar collector fixing bracket 7 is used to restrict the rolling and horizontal movement of the solar collector M. Two adjacent solar collector fixing brackets 7 can be pinned together for alignment and fixation. Multiple solar collector fixing brackets 7 can be stacked sequentially in the height direction. The lifting end of the lifting rope 107 is used to connect to the hook of the lifting device. The lifting device sequentially connects the lifting ring 105, the lifting rope 107, and the solar collector fixing bracket 7 along the direction of gravity. In this embodiment, the collector tube layer-by-layer hoisting device directly uses the collector tube fixing bracket 7 as part of the entire collector tube layer-by-layer hoisting device. Compared with the series of technical solutions in Embodiment 1, the hoisting frame 10 and the clamping frame 20 can be directly eliminated, making the entire collector tube layer-by-layer hoisting device simpler and lighter. Of course, it also makes it impossible to directly hoist the top of the entire collector tube storage and transportation device 100 after hoisting the last layer of collector tube assembly by pinning the main rod assembly and the two ends of the end beam 103 with the hoisting pin 106. At the same time, because there are hoisting holes 91 on the four load-bearing blocks 9, the entire collector tube storage and transportation device 100 can also be hoisted by passing the hoisting rope 107 through the hoisting holes 91 of the four load-bearing blocks 9. Of course, after hoisting the last layer of collector tube assembly, the collector tube storage and transportation device 100 can also be transferred using tools such as forklifts.

[0085] In some embodiments, such as Figures 6 to 10 As shown, the heat collector tube stacking device includes at least two heat collector tube fixing brackets 7 and heat collector tubes M for housing the heat collector tubes, and multiple heat collector tube fixing brackets 7 are stacked sequentially. Two adjacent heat collector tube fixing brackets 7 can be pinned together for alignment and fixation, and multiple heat collector tube fixing brackets 7 are stacked sequentially. Furthermore, as... Figure 6 , Figure 9As shown, between the lowest and second-lowest layer of collector tube stacking devices, between the top and second-highest layer of collector tube stacking devices, and between two stacked layers of collector tube stacking devices, each collector tube fixing bracket 7 is provided with a fixing component (not shown in the attached figure) for stacking and fixing the collector tube fixing bracket plate. The fixing component includes a fixing structure on the upper end face (not shown in the attached figure) and a mating structure (not shown in the attached figure) on the lower end face that cooperates with the fixing structure on the upper end face. The fixing structure and mating structure of each collector tube fixing bracket 7 allow the collector tube fixing bracket 7 of the corresponding upper and / or lower layer of collector tube stacking devices to be easily aligned and interlocked, thereby improving the efficiency of stacking multiple collector tube stacking devices in sequence.

[0086] In some embodiments, such as Figure 6 , Figure 7 As shown, the collector tube fixing bracket 7 is equipped with a fixing component (not shown in the figure) for stacking and fixing the collector tube fixing bracket 7. The fixing component includes an upper end with a fixing structure and a lower end with a mating structure that cooperates with the fixing structure. By utilizing the mating structure at the lower ends of the upper collector tube fixing bracket 7, the fixing structure at the upper ends of the lower collector tube fixing bracket 7 can be automatically positioned and connected. This reduces the difficulty of alignment when hoisting the collector tube stacking device onto the collector tube receiving and transporting device 100, lowers the accuracy requirements of the hoisting process, and allows the hoisted upper collector tube stacking device to automatically and accurately align with the lower collector tube stacking device that will continue to be stacked, thus improving hoisting efficiency.

[0087] In some embodiments, such as Figure 6 , Figure 7 , Figure 8 , Figure 10 As shown, the fixing structure includes a fixing hole (not shown in the figure), and the mating structure includes a fixing post (not shown in the figure) that can be housed in the fixing hole, the end of which is tapered. Specifically, as... Figure 7As shown, the upper part of both ends of the collector tube fixing bracket 7 is provided with an upwardly protruding fixing structure, which can be an upper positioning pin 71. The top of the upper positioning pin 71 can be provided with a fixing hole, which can be a blind hole that does not penetrate the end of the collector tube fixing bracket 7. The lower part of both ends of the collector tube fixing bracket 7 is provided with a downwardly protruding mating structure, which can be a lower positioning pin 72. The lower positioning pin 72 can be a fixing post, and the bottom of the fixing post can be set as a cone. The cone-shaped part of the lower positioning pin 72 can automatically guide and connect with the fixing hole at the top of the upper positioning pin 71. The upper fixing structure at both ends and the lower fitting structure at both ends of the collector tube fixing bracket 7 enable further automatic secondary positioning and docking of the upper and lower layers of collector tube fixing bracket 7. The fixing structure and the fitting structure reduce the positioning difficulty of hoisting the collector tube stacking device onto the collector tube receiving and transporting device 100, reduce the accuracy requirements of the hoisting process, and allow the upper layer collector tube stacking device to automatically and accurately align with the lower layer collector tube stacking device that will continue to be stacked, thereby improving hoisting efficiency.

[0088] In some embodiments, such as Figure 6 , Figure 7 , Figure 8 , Figure 9 As shown, the mating structure also includes a limiting step (not shown in the attached figure) to restrict the distance between the two heat collector tube fixing brackets 7 when stacked. Specifically, as... Figure 6 , Figure 9 As shown, when the upper and lower layers of heat collector tubes are stacked, the total height of the mating structure and the fixing structure at both ends of the heat collector tube fixing bracket 7 determines the distance between the upper and lower heat collector tube fixing brackets 7. The height and position of the limiting step on the mating structure can determine the ratio of the conical part on the mating structure to the columnar part of the fixing column on the mating structure. Different heights of the limiting step can be set according to specific needs, thereby adjusting the ratio of the columnar part and the conical part on the mating structure and the distance between the upper and lower heat collector tube fixing brackets 7.

[0089] It should be noted that the aforementioned mating structure can also be set on the upper part of the collector tube fixing bracket 7, and the corresponding fixing structure can also be set on the upper part of the collector tube fixing bracket 7, as long as the fixing structures at both ends of the collector tube fixing bracket 7 can cooperate and position with the mating structures at both ends of the next layer and / or the next layer of collector tube fixing bracket 7. The shapes of the aforementioned upper positioning pin 71 and lower positioning pin 72 can be cylindrical, square prism, or regular polygonal prism. The blind hole and the conical part can be set on one of the upper positioning pin 71 and lower positioning pin 72. As long as the adjacent upper positioning pin 71 and lower positioning pin 72 can guide and cooperate with each other for positioning, the scheme is within the protection scope of this application.

[0090] In some embodiments, such as Figure 8 , Figure 10 As shown, the collector tube fixing bracket 7 is provided with spaced-apart limiting grooves 73 and limiting protrusions 75. The limiting grooves 73 restrict the collector tube M from moving laterally in a direction parallel to the collector tube fixing bracket 7, and the limiting protrusions 75 restrict the collector tube M from moving longitudinally in a direction perpendicular to the collector tube fixing bracket 7. The limiting grooves 73 and limiting protrusions 75 are provided on the upper surfaces of both ends of each collector tube fixing bracket 7 that support the collector tube M. The limiting grooves 73 and limiting protrusions 75 can reduce the weight of the collector tube fixing bracket 7 itself, and facilitate the setting to prevent the collector tube M from moving in both the lateral and longitudinal directions, thereby improving the stability and reliability of the entire collector tube storage and transportation device 100 during hoisting or translation.

[0091] In some embodiments, such as Figure 6 , Figure 7 , Figure 8 As shown, the collector tube fixing bracket 7 is provided with lifting holes 74, which are located at 1 / 4, 2 / 4, and 3 / 4 of the length of the collector tube fixing bracket 7, or at 1 / 4 and 3 / 4. This ensures the balance and stability when the collector tube layered assembly is installed in layers, and facilitates the quick disassembly and installation of the single-layer collector tube fixing bracket 7 later. Of course, multiple lifting holes 74 can be provided, which can be evenly distributed along the width of the collector tube fixing bracket 7. When actually lifting the collector tube layered assembly, the lifting rope 107 can be passed through the lifting holes 74 as needed, and then the two ends of the lifting rope 107 can be hung on the lifting rings 105, so that the entire collector tube layered assembly can be lifted by an external lifting device. With lifting holes 74 evenly distributed along the width of the collector tube fixing bracket 7, the lifting device can directly lift the collector tube layered device with the collector tube M mounted on the paired collector tube fixing brackets 7 using the lifting rope 107 and lifting ring 105, without the need for additional lifting frames. This saves the time of lifting and disassembling the collector tube layered device and improves the lifting efficiency.

[0092] It should be noted that the distance between the centroids of the two collector tube fixing brackets 7 after fixing is equal to the diameter of the collector tube M to be stored, thereby achieving a multi-layer stacking effect; the surface of the collector tube fixing bracket 7 in contact with the collector tube is covered with a layer of flexible rubber material (not shown in the attached figure); the lifting hole 74 is used to fix the lifting rope 107 for the overall lifting and transportation of the collector tube storage and transportation device 100; the collector tube fixing bracket 7, which is composed of two sets of main rods that are close to each other and the guide structure of the two sets of main rods, together form a rod fixing assembly to protect each layer of stacked collector tubes. The limiting groove 73 and the limiting protrusion 75 of the collector tube fixing bracket 7 are covered with a layer of flexible rubber material (not shown in the attached figure) at the contact positions with the collector tube M. In this way, during the transportation and transfer of the collector tube storage and transportation device 10, it can prevent minor impacts from causing collisions between the collector tube M and the collector tube storage and transportation device 10, as well as between the collector tube M and the collector tube M, which would lead to damage to the collector tube M.

[0093] Example 3:

[0094] Compared to the series of technical solutions in Embodiment 2, in order to further reduce the trouble of passing the suspension rope 107 through the lifting hole 74 of the heat collector tube fixing bracket 7, such as Figure 10 As shown, the bottom of the collector tube fixing bracket 7 on the side opposite to the collector tube M is provided with a lifting groove 76. The lifting groove 76 is located at 1 / 4, 2 / 4, and 3 / 4 of the length of the collector tube fixing bracket 7, or at 1 / 4 and 3 / 4. In the layered lifting device for collector tubes, the pre-fitted lifting rope 107 is simply sleeved onto the bottom of the collector tube fixing bracket 7 and inserted into the lifting groove 76. This prevents slippage due to changes in tension on the rope 107 during lifting, improving the stability and safety of the lifting process. It also enhances the convenience of repeatedly attaching the rope 107 to the collector tube fixing bracket 7 of the lifted collector tubes, thus increasing lifting efficiency.

[0095] In some embodiments, such as Figure 10 As shown, the collector tube fixing bracket 7 has limiting grooves (not shown in the attached figure) at both ends of its top side facing the collector tube M. The collector tube layering device also includes at least two limiting rods N for limiting the torsion of the collector tube fixing bracket 7, and the limiting rods are engaged in the limiting grooves. The limiting rods N further engage at both ends of the collector tube layering device, which can further improve the rigidity of the hoisted collector tube layering device, reduce deformation of the collector tube layering device during hoisting, thereby better protecting the collector tube M and improving the stability and safety of the hoisting process.

[0096] In some embodiments, specifically, such as Figures 3 to 6 , Figure 9As shown, the pallet includes a pallet frame 8 consisting of multiple intersecting pallet beams (not shown in the attached diagram) connected as a whole, and load-bearing blocks 9 fixedly connected to the four corners of the bottom of the pallet frame 8. The bottom surface of the load-bearing blocks 9 protrudes from the bottom surface of the pallet frame 8. On the one hand, the load-bearing blocks 9 can bear the weight of the entire heat collector tube receiving and transporting device and the weight of all the heat collector tubes it contains, allowing the load-bearing blocks 9 to concentrate the impact and wear on the bottom during transportation and transfer. On the other hand, the bottom of the load-bearing blocks 9 is raised a certain distance above the pallet frame 8, making it easier for forklifts and other transfer tools to directly insert the entire heat collector tube receiving and transporting device 100 from the bottom of the pallet frame 8, thus making it easier for forklifts and other special tools to directly lift the entire heat collector tube receiving and transporting device 100. It should be noted that multiple crisscrossing pallet beams are connected to form a whole pallet frame 8, and load-bearing piers 9 are fixedly connected to the four corners of the bottom of the pallet frame 8. The connection of the multiple pallet beams and the connection of the load-bearing piers 9 to the pallet frame 8 can be achieved by direct welding, fastening with fasteners such as screws and bolts, snap-fitting, or fastening. As long as the technical solution can achieve a stable and reliable connection of multiple pallet beams and a stable and reliable connection of the load-bearing piers 9 to the pallet frame 8, it is within the protection scope of this application, and will not be elaborated here.

[0097] In this embodiment, specifically, such as Figures 3 to 6 , Figure 9 As shown, the main support rod group consists of two adjacent main support rods 6. The four main support rod groups are perpendicular to the upper surfaces of the four load-bearing piers 9 and are detachably connected to the load-bearing piers 9. A gap is left between two adjacent main support rods 6 in each main support rod group. The width of this gap is approximately equal to the thickness of the collector tube fixing bracket 7 in the axial direction of the collector tube it supports. This means the collector tube fixing bracket 7 can move up and down and back and forth within this gap. This gap extends from the bottom where the two adjacent main support rods 6 connect to the load-bearing piers 9 to the top of the two adjacent main support rods 6, forming a guide structure that restricts the movement direction of the collector tube fixing bracket 7. This ensures that after the collector tubes are stacked, there is no large movement space between them and the main support rods. Furthermore, the main support rods 6 can be cylindrical, square, or regular polygonal. Any scheme that leaves a gap between two adjacent main support rods 6 to form a guide structure that allows the collector tube fixing bracket 7 to move freely up and down and back and forth is within the scope of protection of this application. On the one hand, the main rod group consisting of two main rods 6 with gaps increases the rigidity of the entire collector tube receiving and transporting device in the vertical direction. The ability of the main rod group to resist vertical and horizontal impacts is at least twice that of a single main rod 6. On the other hand, the guide structure between the two main rods 6 of the main rod group further restricts the direction in which the collector tube fixing bracket 7 can move freely up, down, back and forth, which facilitates the hoisting of the paired collector tube fixing brackets 7, which form the collector tube layered device after the collector tubes are installed, onto the collector tube receiving and transporting device 100, thus improving the convenience of hoisting.

[0098] In some embodiments, such as Figure 5 As shown, the collector tube receiving and transporting device 100 also includes a main support rod connecting cover plate 1, which covers the top of two adjacent sets of main support rods to prevent the collector tube fixing bracket 7 from sliding out from the top of the guide structure. Specifically, as shown... Figure 5 As shown, the main rod connecting cover plate 1 connects the tops of the four main rods 6 of the two adjacent main rod groups, which can further prevent the four main rods 6 from displacing and twisting each other under the action of external force. At the same time, it can also further prevent the top layer of the collector tube fixing bracket 7, which has been installed with the collector tubes, from sliding upward out of the guide structure under the action of external force. Simply put, the main rod connecting cover plate 1 can restrict the collector tube fixing bracket 7 from moving upward, so that when the entire collector tube storage and transportation device 100 is subjected to external force impacts from all directions during transportation and transfer, the various collector tubes M contained in the collector tube storage and transportation device 100 will not collide with each other.

[0099] In some embodiments, such as Figures 3 to 6 , Figure 9 As shown, the collector tube storage and transportation device 100 also includes a protective frame (2, 5) that is detachably connected to the main rod assembly. The protective frame (2, 5) can improve the rigidity of the entire collector tube storage and transportation device 100 and enhance the impact resistance of the entire collector tube storage and transportation device 100 in both directions perpendicular to the axis of the collector tube M, ensuring that the collector tube M is not damaged during transportation and transfer.

[0100] In some embodiments, such as Figures 3 to 6 , Figure 9As shown, the protective frame (2, 5) includes multiple connecting plates (21, 51) detachably connected to the main rod group and at the same horizontal height, horizontal connecting rods (23, 53) detachably connected to the connecting plates, and vertical connecting rods (22, 52) detachably connected to the connecting plates. The horizontal connecting rods (23, 53) and the vertical connecting rods (22, 52) are detachably connected to the connecting plates (21, 51) by fastening screws (24, 54). The connecting plates (21, 51) have notches (211, 511) on one side facing the outside of the heat collection tube receiving and transporting device 100 for attaching the hanging rope 107. The horizontal connecting rods (23, 53) and the vertical connecting rods (22, 52) are connected end to end in sequence through the connecting plates (21, 51) to form a rectangular protective frame that can resist impacts in multiple directions. The connecting plate is detachably connected to the main rod assembly, providing a fulcrum and force point for the installation of the protective frame. It also facilitates the adjustment of the installation height of the connecting plate on the main rod assembly. The horizontal and vertical connecting rods are connected end to end in sequence through the connecting plate to form a whole protective frame. The horizontal and vertical connecting rods connected end to end form a mutually abutting structure at the joint, which can further improve the rigidity of the entire protective frame and enhance the impact resistance of the entire heat collection tube storage and transportation device.

[0101] In some embodiments, such as Figures 3 to 6 , Figure 9 As shown, the solar collector tube storage and transportation device 100 includes multiple protective frames (2, 5) arranged at different heights. Depending on the needs, protective frames at different heights can be installed on the four main support rod groups. The spacing density of the protective frames in the height direction depends on the location of any lateral impacts that the entire solar collector tube storage and transportation device 100 may experience during transportation and transfer. Furthermore, as... Figure 1 , Figure 2 , Figures 5 to 7 As shown, protective frames are provided at the top and bottom of the entire heat collector tube receiving and transporting device 100, which can at least protect against the impact of objects with a height greater than the height of the main rod assembly on the direction perpendicular to the axis of the heat collector tube M.

[0102] In some embodiments, such as Figures 3 to 6 , Figure 9 As shown, the heat collector tube storage and transportation device 100 also includes multiple sets of diagonal bracing assemblies (3, 4). Each set of diagonal bracing assemblies (3, 4) is cross-connected to the upper and lower parts of two adjacent sets of main uprights. Each set of diagonal bracing assemblies (3, 4) is equipped with an adjustable tension adjustment mechanism. Specifically, as shown... Figure 1 , Figure 2 , Figures 5 to 7As shown, the diagonal bracing assembly includes short diagonal bracing assemblies 3, which are vertically connected between two closely spaced main rod groups, and long diagonal bracing assemblies 4, which are vertically connected between two widely spaced main rod groups. The short diagonal bracing assemblies 3 and 4 are connected end-to-end around the four main rod groups in a crisscross pattern, further increasing the rigidity of the entire collector tube receiving and transporting device 100 and enhancing its ability to withstand impacts from external forces on all four sides. If necessary, adjustable tension adjustment mechanisms can be cross-located between adjacent main rod groups to further improve the rigidity of the entire collector tube receiving and transporting device 100 and prevent deformation during hoisting.

[0103] In some embodiments, such as Figures 3 to 6 , Figure 9 As shown, the diagonal bracing assembly (3, 4) includes a diagonal tie rod (not shown in the attached figure) connected to the main rod group at one end and a lead screw (not shown in the attached figure) connected to the main rod group at one end and rotatably connected to the diagonal tie rod at the other end. The diagonal tie rod and the lead screw rotatably connected to the diagonal tie rod can rotate relative to each other to adjust the length of the diagonal bracing assembly (3, 4), thereby further adjusting the magnitude of the tension on the diagonal bracing assembly (3, 4) between the main rod groups. The greater the tension on the diagonal bracing assembly (3, 4), the better the rigidity of the entire heat collection tube receiving and transporting device 100, and the stronger its ability to resist external impacts from the four sides.

[0104] It should be noted that the pallet, main rod assembly, main rod connecting cover, protective frame, collector tube layering device, and collector tube layer hoisting device of the collector tube storage and transportation device 100 can all be modularly disassembled and stored after transportation, which can reduce transportation space.

[0105] The aforementioned layered lifting device for the solar collector tubes can achieve both the overall lifting of the solar collector tube storage and transportation device 100 and the layered lifting of the solar collector tube assembly, which facilitates transportation and allows for rapid installation, thus improving lifting efficiency. Furthermore, its detachable structure allows for disassembly after transportation, reducing the overall transportation volume, saving transportation space, and lowering transportation costs.

[0106] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit it. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A layered hoisting device for a heat collecting pipe, which is used for hoisting a heat collecting pipe storage and transportation device having a plurality of heat collecting pipe fixing brackets, characterized in that, include: Lifting device, providing lifting power; The hoisting frame includes two end beams. Multiple downward-extending hoisting beams are provided on the end beams at both ends of the hoisting frame. The ends of the hoisting beams are provided with hoisting clip holes corresponding to the hoisting holes of the collector tube fixing bracket. Hoisting pins can also be inserted into both ends of the end beams to detachably connect the collector tube storage and transportation device. A snap-fit ​​bracket is used to snap onto a heat collector tube storage and transportation device or a heat collector tube fixing bracket. It includes snap-fit ​​pins, and multiple snap-fit ​​pins can pass through lifting clip holes and lifting holes in sequence. The lifting device and the lifting frame are detachably connected to allow for the replacement of lifting frames of different specifications.

2. The layered hoisting device for solar collector tubes according to claim 1, characterized in that, The hoisting frame also includes multiple longitudinal beams that are assembled into a whole and fixedly connected to the end beams, as well as multiple transverse beams that are fixedly connected between the multiple longitudinal beams. The end beams are fixedly connected to both ends of the multiple longitudinal beams.

3. The layered hoisting device for heat collection tubes according to claim 2, characterized in that, Also includes: The lifting rope includes a connecting end and a lifting end. The connecting end is detachably connected to the lifting frame, and the lifting end is used to connect to the hook of the lifting mechanism. A lifting ring is used to connect the lifting end of a lifting rope to a lifting hook. The lifting device is connected in sequence to the lifting ring, lifting rope, and heat collector tube collection and transportation device in the direction of gravity.

4. The layered hoisting device for heat collection tubes according to claim 3, characterized in that, The clamping bracket can hold two sets of collector tube fixing brackets that are clamped and filled with collector tubes from both ends of the lifting frame.

5. The layered hoisting device for heat collection tubes according to claim 4, characterized in that, The card holder includes: The main beam, which is set parallel to the end beam, has multiple locking pins on the side facing the collector tube fixing bracket that correspond to the hoisting holes. Vertical beams extend upwards from the upper surface of the main beam; The snap-fit ​​beam extends horizontally from the vertical beam toward the side of the collector tube fixing bracket.

6. The layered hoisting device for heat collection tubes according to claim 5, characterized in that, The end of the snap pin is provided with a slot for resiliently engaging the snap ring.

7. A layered lifting device for solar collector tubes, used for lifting the layered solar collector tube assembly to a solar collector tube storage and transportation device, characterized in that, include: Lifting device, providing lifting power; The collector tube fixing bracket is used to restrict the rolling and horizontal movement of the collector tube. Two adjacent collector tube fixing brackets can be pinned and aligned to each other. Multiple collector tube fixing brackets can be stacked sequentially in the height direction. The lifting rope has a detachable connection end to the collector tube fixing bracket and a lifting end for connecting to the lifting device hook. A lifting ring is used to connect the lifting end of a lifting rope to a lifting hook. The heat collector tube storage and transportation device includes four sets of main rods. In each set of main rods, there is a gap between two adjacent main rods for the heat collector tube fixing bracket to move up and down and back and forth in the gap. The lifting device is connected in sequence with the lifting ring, lifting rope, and collector tube fixing bracket against the direction of gravity.

8. The layered hoisting device for solar collector tubes according to claim 7, characterized in that, The heat collector tube stacking device includes at least two heat collector tube fixing brackets for storing heat collector tubes and heat collector tubes, with multiple heat collector tube fixing brackets stacked sequentially.

9. The layered hoisting device for heat collection tubes according to claim 7, characterized in that, The collector tube fixing bracket is provided with a fixing member for stacking and fixing the collector tube fixing bracket. The fixing member includes an upper end with a fixing structure and a lower end with a mating structure that mates with the fixing structure.

10. The layered hoisting device for heat collection tubes according to claim 9, characterized in that, The collector tube fixing bracket is provided with spaced limiting grooves and limiting protrusions. The limiting grooves restrict the collector tube from moving laterally in a direction parallel to the collector tube fixing bracket, and the limiting protrusions restrict the collector tube from moving longitudinally in a direction perpendicular to the collector tube fixing bracket.

11. The layered hoisting device for heat collection tubes according to claim 9, characterized in that, The fixing structure includes a fixing hole, and the mating structure includes a fixing post that can be housed in the fixing hole, the end of which is tapered.

12. The layered hoisting device for solar collector tubes according to claim 11, characterized in that, The structure also includes a limiting step to restrict the distance between the two collector tube fixing brackets when stacked.

13. The layered hoisting device for heat collection tubes according to claim 7, characterized in that, The collector tube fixing bracket is provided with lifting holes, which are located at 1 / 4, 2 / 4 and 3 / 4 of the length of the collector tube fixing bracket, or at 1 / 4 and 3 / 4.

14. The layered hoisting device for solar collector tubes according to claim 7, characterized in that, The bottom of the collector tube fixing bracket on the side away from the collector tube is provided with a lifting groove. The lifting groove is located at 1 / 4, 2 / 4 and 3 / 4 of the length of the collector tube fixing bracket, or at 1 / 4 and 3 / 4.

15. The layered hoisting device for solar collector tubes according to claim 8, characterized in that, The collector tube fixing bracket has limiting grooves at both ends on the top side facing the collector tube. The collector tube layering device also includes at least two limiting rods for limiting the torsion of the collector tube fixing bracket, and the limiting rods are engaged in the limiting grooves.

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