Damping device for ultra-large-aperture pipeline

Abstract

The utility model discloses a damping device of an ultra-large aperture pipeline, which comprises a supporting seat, dampers and fixing components, the supporting seat is fixedly connected to the bottom of the pipeline, the dampers are arranged at both ends of the supporting seat, the fixing components are arranged at both ends of the dampers, and the supporting seat is fixedly connected to the bottom of the pipeline. The fixing assembly is used for connecting the shock absorber with a steel truss. According to the pipeline damping device, the influence of vibration on a high-cleanliness plant in the use process of the pipeline can be reduced, the structural stability of the pipeline in the use process is ensured, the high requirement of a clean room for air quality is met, the service life is prolonged, and the maintenance cost is reduced.

Description

Technical Field

[0001] This utility model relates to the field of pipeline vibration reduction technology, specifically to a vibration reduction device for ultra-large diameter pipelines. Background Technology

[0002] In high-cleanliness facilities, ultra-large diameter pipes (diameter > 1000mm) are typically installed using steel trusses. However, these pipes are easily disturbed when transporting fluids, leading to problems such as vibration transmission, flange loosening, or weld cracking, posing a risk of contaminant leakage. Existing technologies use simple vibration damping devices such as rubber or spring shock absorbers to address pipe vibration issues, but these methods suffer from problems such as pipe rollover and instability, metal corrosion, high maintenance costs, and particulate contamination.

[0003] Therefore, there is a need to provide a vibration damping device for ultra-large diameter pipes to solve the above problems. Utility Model Content

[0004] To overcome the shortcomings of existing technologies, this utility model provides a vibration damping device for ultra-large diameter pipes, which can reduce the impact of pipe vibration on high-cleanliness workshops, ensure the structural stability of the pipes during use, meet the high air quality requirements of cleanrooms, extend service life, and reduce maintenance costs.

[0005] The technical solution adopted by this utility model to solve its technical problem is:

[0006] A vibration damping device for an ultra-large diameter pipe includes a support base, a vibration damper, and a fixing assembly. The support base is fixedly connected to the bottom of the pipe, and the vibration damper is provided at both ends of the support base. The vibration damper is provided at both ends of the vibration damper, and the fixing assembly is used to connect the vibration damper to a steel truss.

[0007] As a further improvement to the above technical solution, the support base is provided in the form of two symmetrical triangular structures, including an arc-shaped stainless steel sheet, a horizontal support steel sheet and a plurality of vertical support steel sheets. The arc-shaped stainless steel sheet is connected to the outside of the pipe, the horizontal support steel sheet is connected to the middle of the arc-shaped stainless steel sheet, and the plurality of vertical support steel sheets are vertically connected between the horizontal support steel sheet and the arc-shaped stainless steel sheet, and the vertical length of the plurality of vertical support steel sheets gradually increases from the middle to both ends of the arc-shaped stainless steel sheet.

[0008] As a further improvement to the above technical solution, the bending angle of the arc-shaped stainless steel sheet is set to 120°.

[0009] As a further improvement to the above technical solution, the shock absorber includes a spring, an upper connecting seat, and a lower connecting seat. The spring is connected between the upper connecting seat and the lower connecting seat, and the upper connecting seat and the lower connecting seat are slidably connected.

[0010] As a further improvement to the above technical solution, the damping ratio of the spring is 0.05-0.15.

[0011] As a further improvement to the above technical solution, the fixing component includes a C-shaped steel, a right-angle tube bundle, and a U-bolt. The C-shaped steel is pressed onto the upper end of the lower connecting seat, the right-angle tube bundle is disposed at the end of the steel truss, and the U-bolt is fastened to the C-shaped steel and used to lock the right-angle tube bundle and the C-shaped steel.

[0012] As a further improvement to the above technical solution, saddles are provided at both ends of the pipe, and the saddles are used for connecting adjacent pipes.

[0013] As a further improvement to the above technical solution, a connecting assembly is provided between two adjacent saddles. The connecting assembly includes a screw, a nut, a spring washer, and a flat washer. A connecting hole is provided on the saddle, the screw is inserted into the connecting hole, the spring washer and the flat washer are sleeved on the screw, and the spring washer and the flat washer are respectively connected to the outer ends of the two saddles. The nut is threaded to the end of the screw.

[0014] As a further improvement to the above technical solution, a tube bundle gasket is provided between the saddles of two adjacent pipes, and the surface of the tube bundle gasket is provided with an ozone-resistant coating.

[0015] As a further improvement to the above technical solution, the surfaces of the saddle, support, fixing components and connecting components are all provided with a galvanized layer.

[0016] The beneficial effects of this utility model are:

[0017] This invention combines support bases, shock absorbers, and fixing components. Multiple support bases are fixed to the bottom of the pipe, and shock absorbers are located at both ends of the support bases and connected to the steel truss through the fixing components. This allows for efficient transfer of the pipe's own weight and the forces generated during use to the steel truss in the case of overhead pipes with ultra-large diameters, achieving excellent shock absorption. It effectively suppresses vibration transmission, reduces continuous oscillations during equipment start-up and shutdown or external impacts (such as earthquakes), and prevents pipe overturning during use. Furthermore, the metal components of the shock absorber are all galvanized, effectively resisting corrosion from ultraviolet rays and ozone, eliminating rust problems, preventing metal particles from contaminating the cleanroom environment, significantly extending maintenance cycles, and reducing maintenance costs. Attached Figure Description

[0018] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0019] Figure 1 This is a schematic diagram of the structure of the pipeline vibration damping device of this utility model;

[0020] Figure 2 yes Figure 1 Enlarged view of point A in the middle;

[0021] Figure 3 yes Figure 1 Enlarged view of point B in the middle;

[0022] Figure 4 This is a structural schematic diagram of the fixing component of this utility model;

[0023] Figure 5 This is a structural schematic diagram of the support base of this utility model.

[0024] Reference numerals: 1. Pipe; 2. Support seat; 21. Curved stainless steel sheet; 22. Horizontal support steel sheet; 23. Vertical support steel sheet; 3. Shock absorber; 31. Spring; 32. Upper connecting seat; 33. Lower connecting seat; 4. Fixing assembly; 41. C-shaped steel; 42. Right-angle tube bundle; 43. U-bolt; 5. Saddle; 6. Connecting assembly; 61. Screw; 62. Nut; 63. Spring washer; 64. Flat washer; 7. Steel truss; 8. Tube bundle gasket. Detailed Implementation

[0025] The following will clearly and completely describe the concept, specific structure, and technical effects of this utility model in conjunction with embodiments and accompanying drawings, so as to fully understand the purpose, features, and effects of this utility model. Obviously, the described embodiments are only a part of the embodiments of this utility model, not all of them. Other embodiments obtained by those skilled in the art based on the embodiments of this utility model without creative effort are all within the scope of protection of this utility model. Furthermore, all connections / connections involved in the patent do not simply refer to direct contact between components, but rather to the ability to form a better connection structure by adding or reducing connecting accessories according to specific implementation conditions. For example, fixed connections / fixed installations can use screw connections, bolt connections, pin connections, key connections, adhesive connections, mortise and tenon connections, welding, riveting, etc., as needed. For detachable connections, screw connections, bolt connections, threaded connections, snap-fit ​​connections, mortise and tenon connections, Velcro connections, etc., can be used as needed. The various technical features in this utility model can be combined interactively without contradicting each other.

[0026] Reference Figures 1 to 5A vibration damping device for ultra-large diameter pipelines includes support bases 2, vibration dampers 3, and fixing components 4. Multiple support bases 2 are spaced apart at the bottom of the pipeline 1, forming a stable support structure and enhancing the stability of the entire device. Vibration dampers 3 are installed at both ends of each support base 2, and fixing components 4 are installed at both ends of each vibration damper 3. The fixing components 4 connect the vibration dampers 3 to a steel truss 7, making installation and disassembly of the vibration dampers 3 more convenient and providing more adjustment possibilities for the connection between the vibration dampers 3 and the steel truss 7, thus enhancing the applicability and flexibility of the device. By adopting this structure, the vibration damping device for ultra-large diameter pipelines of this invention absorbs and buffers pipeline vibration from multiple directions. Compared with traditional vibration damping devices, it can more effectively suppress pipeline vibration, reduce the impact of vibration on the surrounding environment and equipment, and ensure the stable operation of ultra-large diameter pipelines.

[0027] Reference Figure 1 , Figure 5 In this embodiment of the utility model, the support base 2 is configured with two symmetrical triangular structures to ensure good stability. The support base 2 includes an arc-shaped stainless steel sheet 21, a horizontal support steel sheet 22, and multiple vertical support steel sheets 23. The arc-shaped stainless steel sheet 21 is connected to the outside of the pipe 1. The horizontal support steel sheet 22 is connected to the middle of the arc-shaped stainless steel sheet 21, and the multiple vertical support steel sheets 23 are vertically connected between the horizontal support steel sheet 22 and the arc-shaped stainless steel sheet 21. The vertical length of the multiple vertical support steel sheets 23 gradually increases from the middle to both ends of the arc-shaped stainless steel sheet 21, so that the support base 2 can distribute the pressure more evenly when subjected to force, avoid local stress concentration, and effectively enhance the support effect on the pipe 1. Even when the ultra-large diameter pipe is subjected to large external forces or vibrations, it can remain stable and prevent the pipe from tilting or displacing.

[0028] Specifically, the bending angle of the arc-shaped stainless steel sheet 21 is set to 120°, which works in conjunction with the entire symmetrical triangular structure to better conduct and disperse the vibration energy generated by the pipe 1. The vibration is transmitted to the horizontal and vertical support steel sheets through the arc-shaped stainless steel sheet, and then the vibration energy is dispersed to each support component by means of the mechanical properties of the triangular structure. With the help of the shock absorber, the vibration is absorbed and attenuated more efficiently. Compared with the traditional support structure, it can significantly improve the vibration damping performance and reduce the impact of vibration on the pipe and surrounding equipment.

[0029] Reference Figure 3In an embodiment of this utility model, the shock absorber 3 includes a spring 31, an upper connecting seat 32, and a lower connecting seat 33. The spring 31 is connected between the upper connecting seat 32 and the lower connecting seat 33, and the upper connecting seat 32 and the lower connecting seat 33 are provided with sliding connection holes on their side ends. The upper connecting seat 32 and the lower connecting seat 33 are connected to the sliding connection holes by bolts, so that the upper connecting seat 32 and the lower connecting seat 33 are slidably connected up and down, so that the shock absorber 3 can respond to the vibration of the pipe 1 in the vertical direction and provide a more stable operating environment for the pipe 1.

[0030] Specifically, the damping ratio of a typical metal spring is only between 0.005 and 0.01, while the damping ratio of the spring 31 in this invention is set between 0.05 and 0.15, which is significantly higher than the damping ratio of traditional springs. This greatly improves the ability of the spring 31 to dissipate vibration energy, not only protecting pipelines and equipment from vibration damage, but also reducing safety risks caused by vibration, such as medium leakage caused by loose pipeline flanges or cracked welds.

[0031] Reference Figure 4 In this embodiment of the present invention, the fixing component 4 includes a C-shaped steel 41, a right-angle tube bundle 42, and a U-bolt 43. The C-shaped steel 41 is pressed onto the upper end of the lower connecting seat 33, so that the lower connecting seat 33 is connected to the C-shaped steel 41 and the steel truss 7. The right-angle tube bundle 42 is disposed at the end of the steel truss 7. The U-bolt 43 is tightly clamped onto the C-shaped steel 41 and locks the right-angle tube bundle 42 and the C-shaped steel 41, forming a stable structure with multi-point fastening. This ensures that the shock absorber 3 is tightly connected to the steel truss 7, effectively preventing the pipeline 1 from shifting or loosening during operation, ensuring the stability of the entire shock absorption system, and maintaining firm fixation even when the pipeline is subjected to large external forces or vibrations.

[0032] Reference Figure 1 , Figure 2 In this embodiment of the utility model, saddles 5 are provided at both ends of the pipe 1. During the installation of the pipe 1, a connecting component 6 is used to fix the saddles 5 of two adjacent pipes 1. The connecting component 6 includes a screw 61, a nut 62, a spring washer 63, and a flat washer 64. Each end of the saddle 5 is provided with a connecting hole. The screw 61 is inserted into the connecting hole. The spring washer 63 and the flat washer 64 are sleeved on the screw 61, and the spring washer 63 and the flat washer 64 are respectively connected to the outer ends of the two saddles 5. The nut 62 is threaded to the end of the screw 61, effectively preventing the nut 62 from loosening, so that the two pipes 1 are tightly connected into a whole. During the operation of the pipe 1, it can withstand the vibration and external force of the conveying pipe, ensuring the stability of the overall pipe structure and avoiding the impact of loose connection on the overall performance of the shock absorption device.

[0033] Specifically, a tube bundle gasket 8 is provided between the saddle 5 and the pipe 1. The tube bundle gasket 8 is made of highly elastic rubber material with an anti-ozone coating on its surface. While meeting the pipe vibration reduction requirements, it specifically solves the problem of rubber material being easily affected by ozone aging, avoiding the trouble of rubber aging easily releasing particles and polluting the cleanroom environment.

[0034] Reference Figure 1 In the embodiments of this utility model, the surfaces of the saddle 5, support 2, fixing component 4, and connecting component 6 are all provided with a galvanized layer. Applying the galvanizing process to multiple core structures of the shock absorption device, the galvanized layer can form a dense protective film on the surface of the structural components, effectively isolating the structural components from contact with air, moisture, corrosive gases, etc., effectively extending the service life of the shock absorption device. Moreover, the presence of the galvanized layer prevents the precipitation of metal particles, maintains the cleanliness of the factory, meets the strict requirements of a high-cleanliness production environment for equipment, ensures the normal operation of precision equipment, and improves the product yield.

[0035] The above is a detailed description of the preferred embodiments of the present utility model. However, the present utility model is not limited to the described embodiments. Those skilled in the art can make various equivalent modifications or substitutions without departing from the spirit of the present utility model. All such equivalent modifications or substitutions are included within the scope defined by the claims of this application.

Claims

1. A vibration damping device for ultra-large diameter pipes, characterized in that: The device includes a support base, a shock absorber, and a fixing assembly. The support base is fixedly connected to the bottom of the pipe. The shock absorber is provided at both ends of the support base. The fixing assembly is provided at both ends of the shock absorber. The fixing assembly is used to connect the shock absorber to the steel truss.

2. The vibration damping device for an ultra-large diameter pipe according to claim 1, characterized in that: The support base is configured in two symmetrical triangular structures, including an arc-shaped stainless steel sheet, a horizontal support steel sheet, and multiple vertical support steel sheets. The arc-shaped stainless steel sheet is connected to the outside of the pipe, the horizontal support steel sheet is connected to the middle of the arc-shaped stainless steel sheet, and the multiple vertical support steel sheets are vertically connected between the horizontal support steel sheet and the arc-shaped stainless steel sheet. The vertical length of the multiple vertical support steel sheets gradually increases from the middle to both ends of the arc-shaped stainless steel sheet.

3. The vibration damping device for an ultra-large diameter pipe according to claim 2, characterized in that: The bending angle of the arc-shaped stainless steel sheet is set to 120°.

4. The vibration damping device for an ultra-large diameter pipe according to claim 1, characterized in that: The shock absorber includes a spring, an upper connecting seat, and a lower connecting seat. The spring is connected between the upper connecting seat and the lower connecting seat, and the upper connecting seat and the lower connecting seat are slidably connected.

5. The vibration damping device for an ultra-large diameter pipe according to claim 4, characterized in that: The damping ratio of the spring is 0.05-0.

15.

6. The vibration damping device for an ultra-large diameter pipe according to claim 4, characterized in that: The fixing assembly includes a C-shaped steel, a right-angle tube bundle, and a U-bolt. The C-shaped steel is pressed onto the upper end of the lower connecting seat, the right-angle tube bundle is disposed at the end of the steel truss, and the U-bolt is fastened to the C-shaped steel and is used to lock the right-angle tube bundle and the C-shaped steel.

7. The vibration damping device for an ultra-large diameter pipe according to claim 1, characterized in that: Both ends of the pipe are equipped with saddles, which are used for connecting adjacent pipes.

8. The vibration damping device for an ultra-large diameter pipe according to claim 7, characterized in that: A connecting assembly is provided between two adjacent saddles. The connecting assembly includes a screw, a nut, a spring washer, and a flat washer. A connecting hole is provided on the saddle. The screw is inserted into the connecting hole. The spring washer and the flat washer are sleeved on the screw. The spring washer and the flat washer are respectively connected to the outer ends of the two saddles. The nut is threaded to the end of the screw.

9. A vibration damping device for an ultra-large diameter pipe according to claim 7, characterized in that: A tube bundle gasket is provided between the saddles of two adjacent pipes, and the surface of the tube bundle gasket is provided with an ozone-resistant coating.

10. A vibration damping device for an ultra-large diameter pipe according to claim 7, characterized in that: The surfaces of the saddle, support, fixing components, and connecting components are all coated with a galvanized layer.

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