Sliding support for releasing radial thermal stress of high-temperature pipeline
By setting up load-bearing arc plates and arc-shaped clamps on high-temperature pipelines, and adjusting screws with traction mechanisms and release springs, the stress concentration problem caused by radial expansion of high-temperature pipelines is solved, and the stability and sliding convenience of the bracket are achieved.
Patent Information
- Application Number
- CN202510661692.2
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-05-22
- Publication Date
- 2025-08-15
AI Technical Summary
In the prior art, the radial expansion of high-temperature pipelines causes the bracket to bear composite stress, and the stress concentration and plastic deformation occur. The rigid connection affects the sliding convenience and cannot adaptively expand and shrink.
By setting up load-bearing arc plates and arc-shaped clamps on high-temperature pipes, the screw is adjusted by traction mechanism and release springs to achieve flexible connection and limit positioning, and release radial thermal stress.
Effectively release radial thermal stress in high-temperature pipelines, ensure the stability and sliding convenience of the bracket, and prevent material strength from falling and fatigue fracture.
Smart Images
Figure CN120487979A_ABST
Abstract
Description
Technical Field
[0001] The present invention relates to the technical field of ship engineering, and in particular to a sliding bracket for releasing radial thermal stress of a high-temperature pipeline. Background Art
[0002] In shipbuilding and operation, high-temperature piping systems, such as selective catalytic reduction (SCR) denitrification systems, play a critical role in exhaust gas treatment. These piping systems operate in V-shaped, high-temperature environments ranging from 200°C to 500°C for extended periods. The materials used (such as carbon steel or alloy steel) experience significant thermal expansion due to temperature fluctuations. According to the law of thermal expansion, the radial expansion of the piping can be calculated as Δr = αrΔT (where α is the material's linear expansion coefficient, r is the pipe radius, and ΔT is the temperature change). When the piping is fixed at both ends, radial thermal stress can reach σ = EαΔT (where E is the material's elastic modulus), which can be destructive to supporting structures.
[0003] While using the above technology, the following technical problems were discovered in the existing technology: In the existing technology, when the pipeline undergoes radial expansion, the upper half of the bracket must simultaneously withstand a combination of axial and radial stresses due to the rigid connection between the sliding bracket, the high-temperature pipeline, and the sliding bracket base. Stress concentration is particularly significant in the contact area between the bracket support plate and the pipeline. Actual measurements have shown that the stress value in this area can reach 70%-80% of the material's yield strength. Such high stress can easily cause plastic deformation of the bracket, and long-term fatigue fracture can also occur. Secondly, this rigidly connected bracket lacks the ability to adaptively expand and contract based on the radial expansion range of the high-temperature pipe. Furthermore, due to the rigid direct connection, the friction between the high-temperature pipe and the bracket is high, which results in significant resistance when the bracket slides, seriously affecting its ease of sliding. Therefore, we have developed a sliding bracket that relieves radial thermal stress in high-temperature pipes, providing an alternative solution to this technical problem. Summary of the Invention
[0004] Based on this, it is necessary to provide a sliding bracket for releasing the radial thermal stress of high-temperature pipelines to address the above technical problems. The high-temperature pipeline is placed between the load-bearing arc plate and the arc-shaped splint, and the high-temperature pipeline is supported by the support frame, connecting plate, bottom plate, pillar, load-bearing arc plate and arc-shaped splint. The high-temperature pipeline is effectively insulated by the high-temperature resistant layer to prevent the heat of the high-temperature pipeline from being directed to the pillar, load-bearing arc plate and arc-shaped splint, resulting in a decrease in the strength of the material. The arc-shaped splint is then pulled by the traction mechanism to drive the screw rod, so that the arc-shaped splint effectively limits high-temperature pipelines of different diameters. When the high-temperature pipeline expands radially, the screw rod drives the limit rod, the return slide frame and the threaded cylinder to squeeze and contract the release spring, and then the contraction range of the release spring is the radial expansion range of the high-temperature pipeline. The radial expansion or contraction of the high-temperature pipeline is effectively adjusted by the release spring to ensure that the elasticity of the release spring drives the return slide frame, the screw rod and the arc-shaped splint to limit the high-temperature pipeline.
[0005] In order to solve the above technical problems, the present invention adopts the following technical solutions: A sliding bracket for releasing radial thermal stress of high-temperature pipelines, comprising a bracket, a connecting plate fixed to the top of the bracket, a bottom plate assembled on the top of the connecting plate, a pillar fixed to the top of the pillar, a load-bearing arc plate fixed to the top of the pillar, an arc-shaped splint assembled above the load-bearing arc plate, a high-temperature pipeline assembled between the load-bearing arc plate and the arc-shaped splint, a traction block fixed to both ends of the pillar, the inner side of the traction block is rotatably connected to a limiting rotating drum, the inner side of the limiting rotating drum is slidably connected to a screw rod, and a traction mechanism for flexibly connecting the arc splint is provided on the inner side of the traction block.
[0006] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, a gripper is fixed to the top end of one of the screw rods, the inner side of the gripper is slidingly connected to one end of the arc-shaped splint, and the top end of the other screw rod is rotatably connected to the other end of the arc-shaped splint.
[0007] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, high-temperature resistant layers are fixed to the ends of the load-bearing arc plate and the arc-shaped clamping plate that are close to each other.
[0008] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, the traction mechanism includes a return-type sliding frame, a release spring, a threaded cylinder, a limit assembly and a reinforcement assembly. The two ends inside the limit rotating cylinder are slidably connected with the return-type sliding frame, and the top and bottom ends of the return-type sliding frame are respectively slidably connected to the screw rod, and the bottom end of the screw rod passes through the return-type sliding frame and is threadedly connected to the threaded cylinder. Release springs are sleeved on the outside of the two ends of the return-type sliding frame and below the limit rotating cylinder.
[0009] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, the reinforcement component includes a limit block, a limit rod and a tension spring, and a plurality of limit holes are opened inside the screw rod. The two ends of the top of the return-shaped sliding frame are fixed with limit blocks, and the internal sliding connection of the limit block is connected to the limit rod, and one end of the limit rod is slidably connected to the corresponding limit hole.
[0010] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, a tension spring is provided on the outer side of the limit rod, one end of the tension spring is fixed to the limit block, and the other end of the limit block is fixed to the limit rod.
[0011] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, the limiting assembly includes a connecting seat, a clamping block and a V-shaped clamping plate. A connecting seat is fixed to one side of the bottom end of the return-shaped sliding frame, and a clamping block is rotatably connected to the inner side of the connecting seat. The bottom end of the clamping block is slidably connected to the threaded cylinder.
[0012] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, a V-shaped clamping plate is fixed to the top of the connecting seat, and the inner side of the V-shaped clamping plate is squeezed and clamped with the clamping block.
[0013] As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, the four ends of the top end of the connecting plate are threadedly connected to the bottom plate by bolts. As a preferred embodiment of the sliding bracket for releasing radial thermal stress of high-temperature pipelines provided by the present invention, the arc-shaped clamping plate has a certain toughness and can be changed according to the size of the high-temperature pipeline.
[0014] It can be seen without a doubt that the above-mentioned technical solution of this application can definitely solve the technical problem to be solved by this application.
[0015] At the same time, through the above technical solutions, the present invention has at least the following beneficial effects: The present invention provides a sliding bracket for releasing radial thermal stress of high-temperature pipelines. The rotating threaded cylinder applies pressure to the return sliding frame. At this time, the return sliding frame moves upward along the guide of the limiting rotating cylinder. The return sliding frame compresses the release spring. At this time, the elasticity of the release spring drives the return sliding frame to move toward the end away from the limiting rotating cylinder. Then, the release force of the release spring drives the threaded cylinder and the screw rod to pull the arc-shaped clamping plate, so that the arc-shaped clamping plate effectively limits high-temperature pipelines of different diameters. The expansion of the high-temperature pipe drives the arc-shaped splint to expand, and the arc-shaped splint drives the screw rod to move upward. At this time, the screw rod drives the limit rod, the return slide frame and the threaded barrel to generate tension on the release spring, and effectively compresses the release spring. Then, the compression range of the release spring is the radial expansion range of the high-temperature pipe, and the elasticity of the release spring is effectively adjusted according to the expansion or contraction of the high-temperature pipe, so that the arc-shaped splint can effectively fit and fix the high-temperature pipe. The elasticity of the tension spring drives the limit rod to engage with the corresponding limit hole, and the clamping block engages the threaded barrel, thereby effectively preventing the threaded barrel from reversing. Therefore, the stability between the screw rod and the return slide frame is effectively ensured, and the top and bottom ends of the return slide frame are connected to the screw rod through the limit rod and the threaded barrel to prevent the elasticity of the release spring from causing the return slide frame to deform. The release force of the release spring effectively drives the return slide frame, the screw rod and the arc splint to limit the high-temperature pipeline, thereby greatly ensuring the fixation stability of the high-temperature pipeline. BRIEF DESCRIPTION OF THE DRAWINGS
[0016] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0017] Figure 1 It is a schematic diagram of the overall structure of the present invention; Figure 2 This is a schematic diagram of the structure between the support frame and the pillar of the present invention; Figure 3 This is a schematic diagram of the structure between the load-bearing arc plate and the arc-shaped clamping plate of the present invention; Figure 4 Schematic diagram of the structure between the screw rod and the arc-shaped clamping plate of the present invention; Figure 5 This is a schematic diagram of the structure between the load-bearing arc plate, the high-temperature resistant layer and the arc-shaped clamping plate of the present invention; Figure 6 This is a structural diagram of the traction mechanism of the present invention; Figure 7 This is a schematic diagram of the structure between the return-shaped sliding frame and the limiting rotating drum of the present invention; Figure 8 This is a schematic diagram of the reinforcement assembly structure of the present invention; Figure 9 This is a schematic diagram of the structure of the limit assembly of the present invention; Figure 10 It is a schematic diagram of the structure between the V-shaped splint and the clamping block of the present invention.
[0018] In the figure: 1. support frame; 2. connecting plate; 3. bottom plate; 4. pillar; 5. load-bearing arc plate; 6. arc-shaped splint; 7. high-temperature resistant layer; 8. traction block; 9. screw rod; 10. limiting rotary drum; 11. return slide frame; 12. buffer pad; 13. limiting block; 14. limiting rod; 15. tension spring; 16. release spring; 17. threaded cylinder; 18. connecting seat; 19. clamping block; 20. V-shaped splint; 21. gripper; 22. limiting hole. DETAILED DESCRIPTION
[0019] In order to make the purpose, technical solutions and advantages of the present invention more clearly understood, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not intended to limit the present invention.
[0020] As described in the background, in the prior art, when radial expansion of the pipeline occurs, the upper portion of the bracket is subjected to a combination of axial and radial stresses due to the rigid connection between the sliding bracket, the high-temperature pipeline, and the sliding bracket base. Stress concentration is particularly pronounced in the contact area between the bracket support plate and the pipeline. Actual measurements have shown that stress in this area can reach 70%-80% of the material's yield strength. Such high stresses can easily cause plastic deformation in the bracket, and long-term fatigue fracture can also occur. Secondly, this rigidly connected bracket lacks the ability to adaptively expand and contract according to the radial expansion range of the high-temperature pipe. Furthermore, due to the rigid direct connection, the friction between the high-temperature pipe and the bracket is high, which results in significant resistance when the bracket slides, seriously affecting its ease of movement.
[0021] In order to enable those skilled in the art to better understand the solutions of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.
[0022] It should be noted that, in the absence of conflict, the embodiments of the present invention and the features and technical solutions therein may be combined with each other.
[0023] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.
[0024] Example 1 Please refer to Figure 1-Figure 5, a sliding bracket for releasing radial thermal stress of high-temperature pipelines, including a bracket 1, a connecting plate 2 is fixed to the top of the bracket 1, a bottom plate 3 is assembled on the top of the connecting plate 2, a pillar 4 is fixed to the top of the bottom plate 3, a load-bearing arc plate 5 is fixed to the top of the pillar 4, an arc-shaped splint 6 is assembled above the load-bearing arc plate 5, the arc-shaped splint 6 has a certain toughness and can be changed according to the size of the high-temperature pipeline, a high-temperature pipeline is assembled between the load-bearing arc plate 5 and the arc-shaped splint 6, a traction block 8 is fixed at both ends of the pillar 4, the inner side of the traction block 8 is rotatably connected to the limiting rotating drum 10, the inner side of the limiting rotating drum 10 is slidably connected to the screw rod 9, and the inner side of the traction block 8 is provided with a traction mechanism for flexibly connecting the arc-shaped splint 6; When in use, the high-temperature pipeline is placed between the load-bearing arc plate 5 and the arc-shaped clamping plate 6, and the high-temperature pipeline is supported by the support frame 1, the connecting plate 2, the bottom plate 3, the support column 4, the load-bearing arc plate 5 and the arc-shaped clamping plate 6. At this time, the traction mechanism drives the screw rod 9 to pull the arc-shaped clamping plate 6, so that the arc-shaped clamping plate 6 effectively limits the high-temperature pipeline. A gripper 21 is fixed to the top of one of the screw rods 9, and the inner side of the gripper 21 is slidably connected to one end of the arc-shaped splint 6, wherein the top of the other screw rod 9 is rotatably connected to the other end of the arc-shaped splint 6, and the arc-shaped splint 6 is rotated by rotating the arc-shaped splint 6 and the other screw rod 9. At this time, one of the arc-shaped splints 6 is separated from one of the screw rods 9, and then the high-temperature pipeline is placed between the load-bearing arc plate 5 and the arc-shaped splint 6, and then one of the screw rods 9 and the gripper 21 are clamped with one end of the arc-shaped splint 6, and finally the high-temperature pipeline is effectively limited. At this time, the arc-shaped splint 6 has a certain toughness, which further enhances the stability of the high-temperature pipeline. A high-temperature resistant layer 7 is fixed to the ends of the load-bearing arc plate 5 and the arc splint 6 that are close to each other. The high-temperature resistant layer 7 effectively insulates the high-temperature pipeline to prevent the heat of the high-temperature pipeline from being directed to the support 4, the load-bearing arc plate 5 and the arc splint 6, resulting in a decrease in the strength of the material.
[0025] Example 2 Please refer to Figures 6-10 , a sliding bracket for releasing radial thermal stress of high-temperature pipelines, the traction mechanism includes a return-shaped sliding frame 11, a release spring 16, a threaded cylinder 17, a limit assembly and a reinforcement assembly. The two ends of the inner part of the limit rotating cylinder 10 are slidably connected with the return-shaped sliding frame 11, and the top and bottom ends of the return-shaped sliding frame 11 are respectively slidably connected with the screw rod 9. The bottom end of the screw rod 9 passes through the return-shaped sliding frame 11 and is threadedly connected to the threaded cylinder 17. The outer sides of the two ends of the return-shaped sliding frame 11 and located below the limit rotating cylinder 10 are sleeved with release springs 16; Specifically, the bottom end of the screw rod 9 passes through the limiting rotary cylinder 10 and the return sliding frame 11 to be threadedly connected with the threaded cylinder 17, and the rotating threaded cylinder 17 applies pressure to the return sliding frame 11. At this time, the return sliding frame 11 moves upward along the guide of the limiting rotary cylinder 10. At this time, the return sliding frame 11 squeezes and contracts the release spring 16. At this time, the elasticity of the release spring 16 drives the return sliding frame 11 to slide toward the end away from the limiting rotary cylinder 10, and then the return sliding frame 11 drives the threaded cylinder 17 and the screw rod 9 to pull the arc clamping plate 6, so that the arc clamping plate 6 effectively limits the high-temperature pipeline. When the high-temperature pipe expands radially, the outer dimension of the high-temperature pipe is expanding. Therefore, the expansion of the high-temperature pipe drives the arc-shaped clamping plate 6 to expand, and the arc-shaped clamping plate 6 drives the screw rod 9 to move upward. At this time, the screw rod 9 drives the limiting rod 14, the return slide frame 11 and the threaded cylinder 17 to squeeze and contract the release spring 16. Then, the compression range of the release spring 16 is the radial expansion range of the high-temperature pipe. The radial expansion or contraction of the high-temperature pipe is effectively adjusted by the release spring 16, so as to ensure that the elasticity of the release spring 16 drives the return slide frame 11, the screw rod 9 and the arc-shaped clamping plate 6 to limit the high-temperature pipe. The reinforcement assembly includes a limit block 13, a limit rod 14 and a tension spring 15. A plurality of limit holes 22 are opened inside the screw rod 9. The limit blocks 13 are fixed at both ends of the top of the return slide frame 11. The limit block 13 is internally slidably connected to the limit rod 14. One end of the limit rod 14 is slidably connected to the corresponding limit hole 22. The outer side of the limit rod 14 is sleeved with a tension spring 15. One end of the tension spring 15 is fixed to the limit block 13, and the other end of the limit block 13 is fixed to the limit rod 14. The elasticity of the tension spring 15 drives the limiting rod 14 to engage with the corresponding limiting hole 22, thereby effectively improving the stability between the screw rod 9 and the return slide frame 11, and preventing the traction force of the screw rod 9 from exerting a pulling force on the bottom end of the return slide frame 11, which would cause deformation of the return slide frame 11 over a long period of time; Therefore, when the high-temperature pipe expands radially and drives the screw rod 9 to pull, the screw rod 9 drives the limit rod 14 and the clamping block 19 to exert a pulling force on the top and bottom ends of the return slide frame 11, thereby effectively compressing the release spring 16. The compression range of the release spring 16 is the range of the radial expansion and compression of the high-temperature pipe. The limiting assembly includes a connecting seat 18, a clamping block 19 and a V-shaped clamping plate 20. The connecting seat 18 is fixed to one side of the bottom end of the return-shaped sliding frame 11. The inner side of the connecting seat 18 is rotatably connected to the clamping block 19. The bottom end of the clamping block 19 is slidably connected to the threaded cylinder 17. The top end of the connecting seat 18 is fixed with the V-shaped clamping plate 20. The inner side of the V-shaped clamping plate 20 is squeezed and clamped with the clamping block 19. Furthermore, when the threaded barrel 17 and the bottom end of the screw rod 9 are rotated, the threaded barrel 17 applies pressure to the return slide frame 11, so that the elasticity of the release spring 16 drives the return slide frame 11 and the screw rod 9 to generate a pulling force on the arc-shaped clamping plate 6. The greater the pressure applied by the threaded barrel 17 to the return slide frame 11, the greater the release force of the release spring 16, and the greater the pressure applied by the release spring 16 to the high-temperature pipe. In order to prevent the threaded barrel 17 from loosening, the clamping block 19 clamps the threaded barrel 17, thereby effectively preventing the threaded barrel 17 from reversing and ensuring the stability of the connection between the threaded barrel 17 and the screw rod 9; The four ends of the top of the connecting plate 2 are threadedly connected to the base plate 3 through bolts. A buffer pad 12 is installed between the connecting plate 2 and the base plate 3. Through the bolt connection, the support 4 and the load-bearing arc plate 5 can be effectively replaced, and the buffer pad 12 effectively buffers the vibration generated by the support 4, the load-bearing arc plate 5 and the high-temperature pipeline.
[0026] The use process of the sliding bracket for releasing radial thermal stress of a high-temperature pipeline provided by the present invention is as follows: when in use, the high-temperature pipeline is placed between the load-bearing arc plate 5 and the arc-shaped clamping plate 6, and the support frame 1, the connecting plate 2, the bottom plate 3, the pillar 4, the load-bearing arc plate 5 and the arc-shaped clamping plate 6 support the high-temperature pipeline, and the rotating threaded cylinder 17 applies pressure to the return slide frame 11. At this time, the return slide frame 11 moves upward along the guide of the limiting rotating cylinder 10, and the return slide frame 11 compresses the release spring 16. At this time, the elasticity of the release spring 16 drives the return slide frame 11 to move toward the end away from the limiting rotating cylinder 10, and then the release force of the release spring 16 drives the threaded cylinder 17 and the screw rod 9 to pull the arc-shaped clamping plate 6, so that the arc-shaped clamping plate 6 effectively limits the high-temperature pipeline; The expansion of the high-temperature pipe drives the arc-shaped clamping plate 6 to expand, and the arc-shaped clamping plate 6 drives the screw rod 9 to move upward. At this time, the screw rod 9 drives the limit rod 14, the return slide frame 11 and the threaded cylinder 17 to compress the release spring 16. Then, the contraction range of the release spring 16 is the radial expansion range of the high-temperature pipe. The elasticity of the tension spring 15 drives the limit rod 14 to be clamped with the corresponding limit hole 22, thereby effectively improving the stability between the screw rod 9 and the return slide frame 11, and the clamping block 19 clamps the threaded barrel 17, thereby effectively preventing the threaded barrel 17 from reversing, ensuring the stability of the connection between the threaded barrel 17 and the screw rod 9, and facilitating the effective screw rod 9 to drive the return slide frame 11 to compress and release the release spring 16 along the guide of the limiting rotating cylinder 10, and the top and bottom ends of the return slide frame 11 are reinforced with the screw rod 9 to prevent the elasticity of the release spring 16 from causing the return slide frame 11 to deform, so that the release force of the release spring 16 effectively drives the return slide frame 11, the screw rod 9 and the arc splint 6 to limit the high-temperature pipeline, greatly ensuring the fixation stability of the high-temperature pipeline.
[0027] The preferred embodiments of the present invention disclosed above are intended only to help illustrate the present invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the present invention to specific embodiments. Obviously, many modifications and variations are possible based on the contents of this specification. These embodiments are selected and described in detail in this specification to better explain the principles and practical applications of the present invention, thereby enabling those skilled in the art to better understand and utilize the present invention. The present invention is limited only by the claims and their full scope and equivalents.
Claims
1. A sliding bracket for releasing radial thermal stress of high-temperature pipelines, characterized in that: The invention comprises a support frame (1), wherein a connecting plate (2) is fixed to the top of the support frame (1), a bottom plate (3) is installed to the top of the connecting plate (2), a pillar (4) is fixed to the top of the bottom plate (3), a load-bearing arc plate (5) is fixed to the top of the pillar (4), an arc-shaped clamping plate (6) is installed above the load-bearing arc plate (5), a high-temperature pipe is installed between the load-bearing arc plate (5) and the arc-shaped clamping plate (6), a traction block (8) is fixed to both ends of the pillar (4), the inner side of the traction block (8) is rotatably connected to a limiting rotating drum (10), the inner side of the limiting rotating drum (10) is slidably connected to a screw rod (9), and the inner side of the traction block (8) is provided with a traction mechanism for flexibly connecting the arc-shaped clamping plate (6).
2. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 1, characterized in that: A gripper (21) is fixed to the top of one of the screw rods (9), and the inner side of the gripper (21) is slidably connected to one end of the arc-shaped clamping plate (6), and the top of the other screw rod (9) is rotatably connected to the other end of the arc-shaped clamping plate (6).
3. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 2, characterized in that: The ends of the load-bearing arc plate (5) and the arc-shaped clamping plate (6) that are close to each other are both fixed with a high-temperature resistant layer (7).
4. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 2, characterized in that: The traction mechanism includes a return slide frame (11), a release spring (16), a threaded cylinder (17), a limit assembly and a reinforcement assembly. The two ends of the interior of the limit rotating cylinder (10) are slidably connected to the return slide frame (11). The top and bottom ends of the return slide frame (11) are slidably connected to the screw rod (9) respectively. The bottom end of the screw rod (9) passes through the return slide frame (11) and is threadedly connected to the threaded cylinder (17). The release springs (16) are sleeved on the outside of the two ends of the return slide frame (11) and located below the limit rotating cylinder (10).
5. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 4, characterized in that: The reinforcement assembly includes a limit block (13), a limit rod (14) and a tension spring (15); a plurality of limit holes (22) are provided inside the screw rod (9); the limit blocks (13) are fixed at both ends of the top of the return slide frame (11); the limit block (13) is internally slidably connected to the limit rod (14); and one end of the limit rod (14) is slidably connected to the corresponding limit hole (22).
6. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 5, characterized in that: A tension spring (15) is sleeved on the outer side of the limiting rod (14), one end of the tension spring (15) is fixed to the limiting block (13), and the other end of the limiting block (13) is fixed to the limiting rod (14).
7. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 4, characterized in that: The limiting assembly includes a connecting seat (18), a clamping block (19) and a V-shaped clamping plate (20). The connecting seat (18) is fixed to one side of the bottom end of the return-shaped sliding frame (11). The inner side of the connecting seat (18) is rotatably connected to the clamping block (19). The bottom end of the clamping block (19) is slidably connected to the threaded cylinder (17).
8. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 7, characterized in that: A V-shaped clamping plate (20) is fixed to the top end of the connecting seat (18), and the inner side of the V-shaped clamping plate (20) is squeezed and clamped with the clamping block (19).
9. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 7, characterized in that: The four ends of the top end of the connecting plate (2) are threadedly connected to the bottom plate (3) via bolts, and a buffer pad (12) is installed between the connecting plate (2) and the bottom plate (3).
10. The sliding bracket for releasing radial thermal stress of high-temperature pipelines according to claim 9, characterized in that: The arc-shaped clamping plate (6) has a certain toughness and can be changed according to the size of the high-temperature pipeline.