Anti-shaking pipe support frame for thermal power plant

Abstract

The utility model relates to pipeline support technical field, and disclose a kind of anti-shaking power plant pipeline support frame, including pipeline, for supporting the support piece of pipeline, compensator and the anti-vibration adjusting element of being located on support piece according to the self-sliding adjustment of pipeline temperature displacement variation, anti-vibration adjusting element includes support plate and guide rod, guide rod is parallel and located in support plate near two sides longer side top, first sliding displacement groove is opened in parallel on each guide rod near one side outer edge, each first sliding displacement groove inside is slidably equipped with sliding block, compensator is installed in the both sides of pipeline, the pipeline between two compensators is near the bottom of two sides outer wall and is connected with sliding block by fixed block. The present application is realized self-sliding adjustment by anti-vibration adjusting element, when pipeline is heated and expands or contracts when cold, effectively release the stress generated due to thermal expansion and contraction, avoid to be limited by stretching, prone to lateral tilt, pipeline vibration phenomenon is increasingly frequent, produce shaking problem.

Description

Technical Field

[0001] This utility model relates to the field of pipeline support technology, specifically to a sway-proof pipeline support frame for thermal power plants. Background Technology

[0002] In coal-fired power plants, the internal gas pipelines play a crucial role in producing electricity from fuels such as coal. These pipelines are responsible for transporting and discharging high-pressure steam. During operation, they not only withstand the high temperature and pressure of the internal steam but also experience vibrations due to steam flow. Therefore, stable and reliable pipeline support structures are essential for ensuring the safe and efficient operation of the power plant's pipeline system.

[0003] Existing pipe support frames for thermal power plants have revealed numerous problems in practical applications. On one hand, common support frames often employ a method of fixing two sets of arc-shaped plates to the outer wall of the pipe with bolts, and then fixing another set of arc-shaped plates to the wall. However, the diameter of the arc-shaped plates in such support frames is often fixed, which limits their applicability, allowing connection only to pipes of the same diameter. Considering that thermal power plant pipes transport high-temperature liquids for extended periods, they are prone to expansion after prolonged heating, causing changes in pipe diameter. In this case, arc-shaped plates with a fixed diameter are insufficient to provide stable support for pipes of different diameters, failing to meet the requirements of thermal expansion and contraction, leading to safety hazards such as pipe swaying and displacement during operation.

[0004] Existing technology application number 202322868346.0 discloses a sway-prevention pipe support frame for thermal power plants, comprising a mounting plate, a U-shaped frame, and a mounting base. The mounting plate has a connecting groove inside, and the U-shaped frame is fitted inside the connecting groove. A threaded rod is welded to one side of the mounting plate, and a mounting base is provided at the end of the threaded rod away from the mounting plate. The mounting plate has an inner groove inside, and a sliding groove extending to the outside of the mounting plate is formed inside the inner groove. This sway-prevention pipe support frame for thermal power plants uses adjustable U-shaped frames to engage and fix the thermal power plant pipes. Two sets of U-shaped frames support and fix the thermal power plant pipes, thus preventing swaying of the pipe support frame.

[0005] However, in actual use, thermal power plant pipelines expand due to heat. The support frame, rigidly fixed to the pipeline via a U-shaped bracket, relies solely on position adjustment for engagement. This rigid connection easily leads to lateral tilting, especially near compensators, where the tensile force on the support is greater, reducing stability and causing more frequent steam pipeline vibrations. This hinders normal power plant operation, potentially causing production stoppages and posing a safety hazard to residents and businesses, failing to meet the requirements for anti-sway pipeline support. Therefore, we propose an anti-sway thermal power plant pipeline support frame to address the aforementioned problems. Utility Model Content

[0006] The purpose of this utility model is to provide a sway-proof support frame for thermal power plant pipelines, in order to solve the problem mentioned in the background art that thermal power plant pipelines are subjected to tensile force along the pipeline elongation direction when they heat up. Due to thermal expansion, the tension is restricted after the traditional support frame is rigidly fixed, which easily leads to lateral tilting, and the pipeline vibration phenomenon becomes more and more frequent, resulting in swaying problems.

[0007] To achieve the above objectives, this utility model provides the following technical solution:

[0008] A sway-prevention support frame for thermal power plant pipelines includes a pipeline, a support member for supporting the pipeline, a compensator, and a vibration-damping adjustment member located on the support member that self-slides and adjusts according to changes in pipeline temperature displacement. The vibration-damping adjustment member includes a support plate and guide rods. The support plate is arranged in a U-shape. The guide rods are parallel to the top of the support plate near the longer sides on both sides. Each guide rod has a first sliding displacement groove parallel to its outer edge near one side. A sliding block is slidably disposed inside each first sliding displacement groove. The sliding block is arranged in a T-shape.

[0009] Preferably, the compensator is installed on both sides of the pipeline and is fixed to the pipeline by bolts. A fixing block is fixedly connected to the bottom of the outer wall of the pipeline between the two compensators, and each fixing block is connected to the sliding block next to it.

[0010] Preferably, the support plate is symmetrically provided with sliding rods inside, the sliding rods are arranged in a U-shape, and the two ends of the sliding rods extend through the support plate to the outside and are connected to the fixing blocks at the bottom of one of the pipes.

[0011] Preferably, the support includes a support frame and a fixing plate. The support frame is arranged in an inverted U-shape, and an mounting plate is integrally connected to the top of the support frame. The mounting plate has a first fixing screw hole near the top of the outer edges on both sides. The fixing plate is arranged in a Z-shape, and a second fixing screw hole matching the first fixing screw hole is provided on the fixing plate.

[0012] Preferably, the support plate located at the top of the mounting plate has symmetrically formed fixing grooves on both outer walls, the end of the fixing plate extends into the fixing groove, and the outer circumferential wall of the end of the fixing plate abuts against the inner circumference of the fixing groove.

[0013] Preferably, the compensator is made of high-temperature resistant metal bellows.

[0014] Preferably, the ends of the compensators located on both sides of the pipeline are fixedly connected to the top of both ends of the support plate.

[0015] Compared with the prior art, the beneficial effects of this utility model are:

[0016] The rigid connection of traditional support frames restricts the thermal expansion of pipelines. However, this application achieves self-sliding adjustment through anti-vibration adjustment components. The cooperation between the first sliding displacement groove on the guide rod and the T-shaped sliding block provides the pipeline with space to slide freely along the axial direction. When the pipeline expands due to heat or contracts due to cold, the fixed block drives the sliding block to slide in the displacement groove, allowing the pipeline to undergo thermal deformation without obstruction. This effectively releases the stress generated by thermal expansion and contraction, avoiding the limitations on stretching caused by the rigid fixation of traditional support frames, which easily leads to tilting and more frequent pipeline vibration, resulting in swaying problems. Attached Figure Description

[0017] Figure 1 This is an overall isometric view of the present invention;

[0018] Figure 2 This is a schematic diagram of the structure of the vibration damping adjustment component of this utility model;

[0019] Figure 3 This is a schematic diagram of the connection structure between the fixing block and the sliding rod of this utility model;

[0020] Figure 4 This is a schematic diagram of the support structure of this utility model.

[0021] In the diagram: 1. Pipe; 11. Fixing block; 2. Support component; 21. Support frame; 22. Fixing plate; 221. Second fixing screw hole; 23. Mounting plate; 231. First fixing screw hole; 3. Compensator; 4. Vibration damping adjustment component; 41. Support plate; 411. Sliding rod; 412. Fixing groove; 42. Guide rod; 421. First sliding displacement groove; 422. Sliding block. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] Please see Figures 1-4 As shown, a sway-resistant pipeline support frame for thermal power plants includes a pipeline 1, a support member 2 for supporting the pipeline 1, a compensator 3, and a vibration-damping adjustment member 4 located on the support member 2 that self-slides and adjusts according to the temperature displacement changes of the pipeline 1. The sway-resistant pipeline support frame effectively solves the tilting and vibration problems caused by the rigid fixing of traditional support frames through the coordinated design of the support member 2, the compensator 3, and the vibration-damping adjustment member 4. The support member 2 includes a support frame 21 and a fixing plate 22. The support frame 21 has an inverted U-shaped structure, and both ends of the support frame 21 are easily connected to fixed equipment in the thermal power plant via fixing members. The top of the support frame 21... The unit is integrally connected with a mounting plate 23, which is connected to the vibration damping adjustment component 4 to ensure the connection is stable. The mounting plate 23 has a first fixing screw hole 231 near the top of the outer edges on both sides. The fixing plate 22 is set in a Z-shaped structure and has a second fixing screw hole 221 that matches the first fixing screw hole 231. The fixing plate 22 is connected to the fixing groove 412 reserved in the vibration damping adjustment component 4. The Z-shaped structure is stable and easy to disassemble, further enhancing the connection stability. When the pipeline is thermally expanded and tensile, it can effectively disperse the stress, prevent the support from tilting, and ensure the overall stability of the support frame.

[0024] This application achieves self-sliding adjustment through the anti-vibration adjustment component 4. The cooperation between the first sliding displacement groove 421 on the guide rod 42 and the T-shaped sliding block 422 provides space for the pipe 1 to slide freely along the axial direction. When the pipe expands due to heat or contracts due to cold, the fixed block 11 drives the sliding block 422 to slide in the displacement groove, so that the pipe can undergo thermal deformation without obstruction, effectively releasing the stress generated by thermal expansion and contraction. This avoids the problem that after the traditional support frame is rigidly fixed, the tension is restricted, which easily leads to tilting and more frequent pipe vibration, resulting in swaying problems.

[0025] Please see Figure 2 ,and Figure 3As shown, the vibration damping adjustment component 4 includes a support plate 41 and guide rods 42. The support plate 41 is arranged in a U-shape. The guide rods 42 are parallel to the top of the longer sides of the support plate 41. Each guide rod 42 has a first sliding displacement groove 421 parallel to its outer edge on one side. Each first sliding displacement groove 421 has a sliding block 422 slidably installed inside it. The sliding block 422 is arranged in a T-shape. The pipeline 1 is connected to the sliding block 422 through a fixed block 11. The fixed block 11 drives the sliding block 422 to slide in the displacement groove, enabling the pipeline to self-adjust. The compensator 3 is installed on both sides of the pipeline 1. The compensator 3 uses a high-temperature resistant metal bellows. The flexibility of the metal bellows can absorb the axial displacement caused by the thermal deformation of the pipeline and provide secondary buffering for pipeline vibration. Compared with traditional supports without compensators, it significantly reduces the vibration-induced axial displacement caused by the pipeline. Loosening of components and fatigue damage extend the service life of pipes and support frames. The compensator 3 is fixed to the pipe 1 by bolts. The pipe 1 between the two compensators 3 is fixedly connected to the bottom of the outer wall on both sides by fixing blocks 11. Each fixing block 11 is connected to its adjacent sliding block 422. The support plate 41 is symmetrically provided with sliding rods 411 inside. The sliding rods 411 are arranged in a U-shape. The two ends of the sliding rods 411 extend through the support plate 41 to the outside and are connected to the fixing blocks 11 at the bottom of one of the pipes 1 on both sides. The support plate 41, located at the top of the mounting plate 23, is provided with fixing grooves 412 symmetrically opened on the outer walls on both sides. The end of the fixing plate 22 extends into the fixing groove 412. The outer circumferential wall of the end of the fixing plate 22 abuts against the inner circumference of the fixing groove 412. The ends of the compensators 3 located on both sides of the pipe 1 are fixedly connected to the top of the two ends of the support plate 41.

[0026] When the pipeline heats up and expands, the pipeline 1 located between the compensators 3 is connected to the sliding block 422 through the fixed block 11. The fixed block 11 drives the sliding block 422 to slide in the displacement groove, so that the pipeline can adjust itself. Compared with the traditional rigid fixation, it effectively avoids the risk of tilting and more frequent pipeline vibration caused by tension restriction. The U-shaped sliding rod 411 passes through the support plate 41 and is connected to the fixed block 11. The sliding rod 411 slides inside the support plate 41 to ensure that the support plate 41 always moves in the horizontal direction and prevents tilting.

[0027] In use, first, precisely connect the inverted U-shaped support frame 21 to the fixed equipment of the power plant through the fixing parts at both ends to ensure that the support frame stands firmly in the designated position, laying the foundation for subsequent installation. Align the second fixing screw hole 221 on the Z-shaped fixing plate 22 with the first fixing screw hole 231 on the mounting plate 23, and tighten the bolts to make the fixing plate 22 and the mounting plate 23 tightly connected. Then, insert the end of the fixing plate 22 into the fixing groove 412 of the support plate 41 to complete the initial connection between the support 2 and the vibration damping adjustment component 4. Install the compensator 3 made of high temperature resistant metal corrugated pipe on both sides of the pipeline 1, and fix the compensator 3 to the pipeline 1 firmly with bolts. Then connect the end of the compensator 3 to the top of both ends of the support plate 41 to make the compensator 3 and the vibration damping adjustment component 4 linked. Connect the fixing block 11 at the bottom of both sides of the pipeline 1 to the sliding block 422 in the vibration damping adjustment component 4, and let the two ends of the U-shaped sliding rod 411 pass through the support plate 41 and be firmly connected to the fixing block 11. At this point, the entire anti-sway pipeline support frame is installed.

[0028] During operation, when the thermal power plant pipeline 1 expands due to temperature rise, the pipeline 1 causes the fixed block 11 to shift. Since the fixed block 11 is connected to the sliding block 422, the sliding block 422 can slide freely axially within the first sliding displacement groove 421 of the guide rod 42, providing space for the thermal expansion of the pipeline 1, allowing the pipeline to deform without obstruction and effectively releasing the stress generated by thermal expansion and contraction. At the same time, the U-shaped sliding rod 411 passes through the support plate 41 and is connected to the fixed block 11. When the pipeline expands thermally, the sliding rod 411 slides inside the support plate 41, ensuring that the support plate 41 always moves horizontally, preventing the support from tilting due to the tension generated by the thermal expansion of the pipeline. Compared with traditional rigid fixing, this completely solves the tilting problem caused by the limited tension of the pipeline.

[0029] Vibration occurs during pipeline operation. On one hand, the sliding engagement between the sliding block 422 and the first sliding displacement groove 421 forms a primary damping structure, and the sliding of the sliding block 422 within the displacement groove absorbs some of the vibration energy. On the other hand, the compensators 3 installed on both sides of the pipeline 1, using high-temperature resistant metal corrugated pipes, absorb the axial displacement caused by pipeline thermal deformation due to their flexibility, while simultaneously providing secondary buffering for pipeline vibration. The synergistic effect of these dual damping mechanisms significantly reduces the vibration amplitude of the pipeline, substantially reduces component loosening and fatigue damage caused by vibration, and ensures the safe and stable operation of the thermal power plant's pipeline system.

[0030] The contents not described in detail in this specification are existing technologies known to those skilled in the art.

[0031] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A sway-resistant pipe support frame for a thermal power plant, comprising a pipe (1), a support member (2) for supporting the pipe (1), a compensator (3), and a vibration-damping adjustment member (4) located on the support member (2) and self-sliding adjustment according to the temperature displacement change of the pipe (1), characterized in that: The vibration damping adjustment component (4) includes a support plate (41) and a guide rod (42). The support plate (41) is arranged in a U-shape. The guide rod (42) is located parallel to the top of the longer side of the support plate (41). Each guide rod (42) has a first sliding displacement groove (421) parallel to its outer edge on one side. Each first sliding displacement groove (421) has a sliding block (422) slidably arranged inside it. The sliding block (422) is arranged in a T-shape.

2. The anti-sway pipe support frame for thermal power plants according to claim 1, characterized in that: The compensator (3) is installed on both sides of the pipe (1). The compensator (3) is fixed to the pipe (1) by bolts. The pipe (1) between the two compensators (3) is fixedly connected to the bottom of the outer wall on both sides by a fixing block (11). Each fixing block (11) is connected to the sliding block (422) next to it.

3. A sway-prevention pipe support frame for thermal power plants according to claim 2, characterized in that: The support plate (41) is symmetrically provided with sliding rods (411) inside. The sliding rods (411) are U-shaped and extend through the support plate (411) to the outside and connect with the fixing blocks (11) at the bottom of one of the pipes (1).

4. The anti-sway pipe support frame for thermal power plants according to claim 1, characterized in that: The support member (2) includes a support frame (21) and a fixing plate (22). The support frame (21) is arranged in an inverted U-shape. The top of the support frame (21) is integrally connected to a mounting plate (23). The mounting plate (23) has a first fixing screw hole (231) near the top of the outer edges on both sides. The fixing plate (22) is arranged in a Z-shape. The fixing plate (22) has a second fixing screw hole (221) that matches the first fixing screw hole (231).

5. A sway-resistant pipe support frame for thermal power plants according to claim 4, characterized in that: The support plate (41) located on the top of the mounting plate (23) has symmetrically provided fixing grooves (412) on both sides of the outer wall. The end of the fixing plate (22) extends into the fixing groove (412), and the outer circumferential wall of the end of the fixing plate (22) abuts against the inner circumference of the fixing groove (412).

6. A sway-resistant pipe support frame for thermal power plants according to claim 1, characterized in that: The compensator (3) is made of high-temperature resistant metal bellows.

7. A sway-prevention pipe support frame for thermal power plants according to claim 1, characterized in that: The ends of the compensators (3) located on both sides of the pipeline (1) are fixedly connected to the top of both ends of the support plate (41).

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