Pipeline vibration reduction tuned mass damper

Abstract

The utility model discloses a pipeline vibration reduction tuned mass damper which comprises a pipeline clamp and a vibration reduction device. The pipeline clamp is installed on a pipeline in a hoop or annular clamping structure, and the damping device is arranged on the pipeline installation assembly. The vibration reduction device comprises a vibration reduction base, a buffering piece and a mass block, and different types of tuned mass dampers can be arranged according to different vibration conditions of the pipeline. Through tuning energy absorption and damping energy dissipation of the tuned mass damper, vibration of the pipeline is reduced, and the problem that vibration is violent due to vibration of the pipeline is solved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of damping, specifically relates to a pipeline damping tuned mass damper. BACKGROUND

[0002] Pipeline vibration problems often occur in various engineering structures and mechanical systems. The hazards caused by pipeline vibration are multifaceted, not only causing damage to the pipeline itself, but also affecting the operation of the connected pipeline and causing a series of safety hazards. Long-term pipeline vibration can cause uneven output of the system main pipeline, affecting the mechanical properties and normal operation of the main pipeline. Therefore, solving the problem of pipeline vibration is also an important matter in the pipeline operation process.

[0003] Currently, the main methods to solve the problem of pipeline vibration are to change the pipeline structure and increase the air buffer tank. After the production is put into operation, the main scheme is to increase support or vibration isolation pad. For pipelines that cannot increase support or have special vibration conditions, the above-mentioned schemes cannot be well solved.

[0004] Chinese patent CN111457187B discloses a pipeline damping device and its configuration method. The pipeline damping device includes several bottom plates. The bottom plates are sequentially connected by hinges to form a long chain. The long chain is wound around the pipeline. Each of the bottom plates at both ends of the long chain is hingedly connected with an L-shaped connecting plate through a hinge. The opposite end faces of the two L-shaped connecting plates are respectively holed, and are connected by bolts. Each bottom plate is movably connected with a frequency-adjustable vibration absorber on the outer end face for absorbing vibration. The above-mentioned device has a complex installation process and cannot increase or decrease the number of vibration absorbers according to demand. Therefore, it is urgent for technical personnel in the field to solve the above-mentioned technical problems. SUMMARY

[0005] The utility model discloses to solve the problem of complex pipeline environment, unable to increase support, or difficult to quickly adjust according to demand in the prior art, and provides a pipeline damping tuned mass damper.

[0006] The utility model discloses the technical scheme adopted has:

[0007] A pipeline damping tuned mass damper includes a pipeline clamp and a damping device. The damping device includes a damping base, a buffer and a mass block. The damping base is located at the bottom of the damping device. The mass block is installed at the top of the damping device. The buffer is installed between the damping base and the mass block. The damping base is installed on the pipeline clamp.

[0008] By adopting the above technical scheme, through the interaction between the carefully designed damping base, the buffer and the mass block, the device can effectively absorb and dissipate the vibration energy generated during the operation of the pipeline. This helps to reduce the mechanical stress caused by vibration of the pipeline, prolong its service life, and prevent potential failures caused by long-term vibration. According to different pipeline vibration conditions, the mass, frequency and damping ratio of the mass block can be adjusted to match the vibration frequency of the damper with the specific pipeline. This tuning capability enables the device to provide optimal damping effect where it is most needed, thereby optimizing overall performance. The entire damping device is fixed on the pipeline clamp through the adapter plate and bolts, which simplifies the installation process and allows for quick deployment without the need for major modifications to the existing pipeline structure. At the same time, if parts need to be replaced or repaired, they can be easily removed and handled, reducing pipeline vibration, which not only protects the pipeline itself but also reduces noise levels and improves the working environment. For cases where there are multiple directional vibrations, multiple damping devices can be arranged on the pipeline clamp to individually adjust to different directional vibration conditions, further enhancing the damping effect.

[0009] Further, the pipeline clamp is composed of at least two arc-shaped mounting plates, the interfaces of the arc-shaped mounting plates are connected by bolts, and the adapter plate is arranged on each arc-shaped mounting plate.

[0010] By adopting the above technical scheme, since the pipeline clamp is composed of multiple arc-shaped mounting plates, it can more flexibly adapt to pipelines of different diameters and shapes. Whether the pipeline is circular or non-circular in cross-section, it can be tightly fitted by adjusting the number and shape of the arc-shaped mounting plates to ensure good fixation. The segmented arc-shaped mounting plates allow workers to more easily install the clamp on existing pipelines, especially in limited space or difficult-to-access locations. Each interface is connected by bolts, which not only ensures the stability of the connection but also facilitates future maintenance and inspection work. When the pipeline is subjected to external forces, the segmented design can better distribute stress and avoid local deformation or damage due to excessive stress on a single point. Each arc-shaped mounting plate can independently bear a portion of the load, enhancing the stability of the entire system. The adapter plate is arranged on each arc-shaped mounting plate, which means that the number and position of the damping devices can be flexibly arranged according to actual needs. For areas with more severe vibration, more or larger dampers can be added; for areas with less vibration, fewer small dampers can be selected to achieve precise control.

[0011] Further, the inner wall of the pipe clamp is arc-shaped, and the outer wall comprises a transition section and a mounting section; the interfaces of each transition section are fixed together by bolts; the mounting section is horizontally structured, and mounting holes are arranged on the mounting section, and the damping base is mounted on the mounting section by bolts.

[0012] By adopting the above technical solutions, the arc-shaped structure of the inner wall ensures that the clamp can closely fit the outer surface of the pipe, providing good support and fixing effect regardless of the diameter of the pipe. This helps to reduce additional vibration caused by the gap between the clamp and the pipe. The segmented transition section design allows each section of the clamp to be adjusted independently, ensuring uniform pressure distribution even on irregularly shaped or curved pipes. By bolting the interfaces of each section together, the overall stability and reliability of the entire clamp structure are enhanced. The horizontally structured mounting section provides a convenient operating platform, allowing workers to easily install or remove the damping device without restrictions. Meanwhile, the pre-set mounting holes simplify the process of bolt positioning, improving installation efficiency. The transition section design can effectively disperse external loads applied to the clamp, preventing deformation or damage caused by local stress concentration. Such design is particularly suitable for working environments that bear large mechanical stress. Since the damping base is fixed to the mounting section by bolts, if maintenance, replacement, or repositioning of the damping device is required, the operation can be quickly completed by loosening the bolts without disassembling the entire clamp system.

[0013] Further, at least two adapter plates are mounted on the arc-shaped mounting plate.

[0014] By adopting the above technical scheme, the weight and vibration load of the damping device can be more evenly distributed by increasing the number of adapter plates. Each adapter plate can independently bear a part of the load, thereby improving the stability and carrying capacity of the entire system, reducing the risk of excessive stress on a single point, and allowing more damping devices or different types of dampers to be installed on the same arc-shaped mounting plate. This allows for flexible adjustment of the damping scheme based on the specific vibration conditions of the pipeline (such as frequency, amplitude, etc.), enabling more precise and effective vibration control. Even if one of the adapter plates or the damping devices on it fails or needs maintenance, the other adapter plates can still continue to work, ensuring that the system does not fail due to a single component problem. This redundant design improves the reliability and fault tolerance of the entire damping system. For pipelines that experience multi-directional or multi-band vibrations, damping devices designed for specific vibration modes can be installed on different adapter plates. For example, high-frequency response dampers can be installed on one adapter plate, while low-frequency response dampers can be installed on another adapter plate to cope with complex vibration environments. Multiple adapter plates provide more selectable installation locations, facilitating the quick installation or rearrangement of damping devices based on actual conditions. If a damping device needs to be debugged or replaced, only the relevant adapter plate needs to be operated, without affecting the work of other parts.

[0015] Further, the buffer is made of plastic material, rubber, metal rubber or steel wire rope.

[0016] By adopting the above technical scheme, the metal spring can provide high stiffness and stability, suitable for carrying heavy loads and high-frequency vibrations. Within the elastic range, the response of the metal spring is linear, easy to predict and design, usually has high durability and long service life, suitable for application in harsh environments. TPE has good flexibility and elastic recovery ability, suitable for low to medium frequency vibrations. Many TPE materials can be recycled, reducing environmental pollution. Rubber has high internal damping, which can effectively absorb vibration energy. The hardness of rubber can range from very soft to quite hard, allowing for selection of appropriate hardness based on specific applications. Combining the advantages of metal and rubber, it has both the rigidity and stability of metal and the damping and elasticity of rubber. It performs well in high temperature or chemical corrosion environments and is suitable for special working conditions. Steel wire rope has very high tensile strength, suitable for vibration isolation that requires tension. It can bend and twist, suitable for flexible damping applications. With proper maintenance, steel wire rope has a very long service life.

[0017] Further, the damping base, the buffer, the mass block, and the adapter plate or the mounting segment are fixed together through threads, rivets, welding, adhesion, buckling.

[0018] By adopting the technical scheme, the integral structure is generally more solid than the assembled structure because it reduces joints and connecting points, which can be structural weak links. This means that the integral mass block can withstand greater force and stress without deformation or damage, and when the mass block is connected by bolts, welding or other means, the connections can become additional sources or paths of vibration. The integral structure eliminates these connections, thereby reducing the unintended transmission of vibration energy, the integral design means that there is no need to align and fix multiple independent parts during manufacturing and installation, which greatly simplifies the assembly process, reduces the risk of errors, and saves time and cost, and since there are no movable connecting parts, the mass block of the integral structure will not fail due to loose bolts or worn parts, which improves the reliability and life of the entire system.

[0019] The utility model has the advantages of:

[0020] 1. The pipeline vibration reduction tuning mass damper can flexibly adapt to pipelines of different diameters, shapes and complex environments, allowing workers to more conveniently install on existing pipelines, and can be easily operated even in limited space or difficult-to-access places, and at least two adapter plates on each arc-shaped mounting plate allow flexible arrangement of the number and position of the vibration reduction devices according to actual needs, thereby achieving precise control of specific vibration conditions.

[0021] 2. The utility model can effectively absorb and dissipate the vibration energy generated during pipeline operation through the interaction between the vibration reduction base, the buffer (such as metal spring, rubber, TPE, etc.) and the mass block, can adjust the mass, frequency and damping ratio of the mass block according to different pipeline vibration conditions, match the damper with the vibration frequency of the specific pipeline, and make the device provide the best vibration reduction effect where it is most needed, thereby significantly optimizing the overall performance, and for the case of multi-directional or multi-band vibration, different types or numbers of vibration reduction devices can be installed on the same arc-shaped mounting plate to cope with complex vibration environments and further enhance the vibration reduction effect.

[0022] 3. The utility model discloses a pipe clamp and bolt fixed on the adapter plate, simplify the installation process, do not need to carry out large -scale reconstruction to the existing pipeline structure can realize the quick deployment, need to replace or repair parts, only need to loosen the relevant bolt can easily dismantle and handle, greatly facilitate the maintenance and inspection work of later, the mass block of integral type structure reduces the seam and the connecting point, improve the overall strength and durability of assembly, simultaneously also facilitate production and assembly, reduce the problem possibility because of manufacturing error or improper installation, also improved the reliability and fault tolerance of whole damping system, ensure that even in the harsh working environment also can long -term stable operation. BRIEF DESCRIPTION OF DRAWINGS

[0023] Figure 1 It is installation schematic drawing of the utility model;

[0024] Figure 2 It is structure schematic drawing of installing damping device;

[0025] Figure 3 It is structure schematic drawing of pipe clamp;

[0026] Figure 4 It is the assembly schematic drawing of pipe clamp and damping device of the utility model;

[0027] Figure 5 It is structure schematic of the utility model embodiment Figure 1 ;

[0028] Figure 6 It is structure schematic of the utility model embodiment Figure 2 ;

[0029] Figure 7 It is structure schematic of the utility model embodiment Figure 3 ;

[0030] In the drawing: 1-pipe clamp;11-arc mounting plate;112-transition section;113-mounting section;114-mounting hole;12-adapter plate;2-damping device;21-damping base;22-buffer;23-mass block;3-pipeline. DETAILED DESCRIPTION

[0031] The utility model will be further explained in detail in combination with the drawings and specific preferable implementation.

[0032] In the description of the utility model, it needs to be understood that the terms "left side", "right side", "upper part", "lower part" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the indicated device or element must have a specific orientation, be constructed and operated in a specific orientation, and "first", "second" and the like do not represent the importance of the parts, so they cannot be understood as limiting the utility model. The specific size used in the embodiment is only for example to illustrate the technical scheme, and does not limit the protection scope of the utility model.

[0033] Referring to Figure 1 It can be seen that a pipeline vibration reduction tuned mass damper comprises an arc-shaped mounting plate 11, an adapter plate 12, a vibration reduction base 21, a buffer 22 and a mass block 23, the pipeline clamp 1 is composed of two arc-shaped mounting plates 11, the interfaces of each arc-shaped mounting plate 11 are connected to each other by bolts to form a complete annular structure, and the annular structure is tightly fitted on the outer surface of the pipeline 3. Two adapter plates 12 are arranged on each arc-shaped mounting plate 11, the adapter plates 12 are used for installing the vibration reduction device 2 and providing a fixed point for the vibration reduction base 21. The pipeline clamp 1 is a key component for installing the pipeline 3, and functions to provide a stable platform for the pipeline 3 to ensure the normal operation of the pipeline. The vibration reduction device 2 aims to reduce the vibration and noise generated during the operation of the pipeline 3, thereby improving the stability and service life of the pipeline 3;

[0034] The vibration reduction base 21 is a basic part of the vibration reduction device, usually made of metal, and used for supporting the entire vibration reduction device. The buffer 22 adopts a spring, and the main function of the buffer 22 is to absorb the vibration energy generated during the operation of the pipeline. The mass block 23 is an object with a certain weight, and the vibration of the pipeline 3 can be reduced by the interaction between the mass block 23 and the buffer;

[0035] The arc-shaped mounting plate 11 is a pipeline for fixing the pipeline clamp 1, usually made of metal, and the pipeline clamp can be fixed firmly on the pipeline 3 by bolts or other fasteners.

[0036] When using the vibration reduction device 2, first, the pipeline clamp 1 is fixed on the pipeline through the arc-shaped mounting plate 11, then the buffer 22 is installed between the vibration reduction base 21 and the mass block 23. Finally, the vibration reduction base 21 and the adapter plate 12 are connected together by bolts to complete the installation of the entire vibration reduction device 2.

[0037] Referring to Figure 1 , Figure 2 and Figure 4It can be seen that first, the mass block 23 is fixed to the buffer 22 in advance to ensure firm connection between the two. The mass block 23 can be of an integral or composite structure, and its weight and shape are designed according to the vibration characteristics of the pipeline 3. The buffer 22 with the fixed mass block 23 is placed above the damping base 21, and the buffer 22 can be a metal spring, TPE, rubber, metal rubber, steel wire rope, etc. The appropriate material and structure are selected as needed, and the damping base 21 is connected with the buffer 22 by bolts to ensure stable installation and pre-compression of the buffer, so as to facilitate energy absorption. The damping base 21 is connected with the adapter plate 12 by fasteners, which can be bolts or other appropriate connectors, to ensure that the damping device is firmly installed on the pipeline clamp 1. The pipeline clamp 1 is fixed on the pipeline 3 by the arc-shaped mounting plate 11 through bolt connection, pressing and the like. Through the reasonable design of the above structure, the combination of the buffer 22 and the mass block 23 can be tuned to the specific vibration frequency of the pipeline, thereby absorbing and dissipating vibration energy, reducing the vibration amplitude of the pipeline, and achieving the purpose of vibration and noise reduction. The separately arranged damping device simplifies the installation process, is fixed on the outside of the pipeline, reduces the modification to the internal structure of the pipeline, and is convenient for maintenance and upgrading. This design can be applied to various pipelines with vibration, and is customized according to the specific needs of the pipeline to improve the damping effect.

[0038] Referring to Figure 5 and Figure 6 It can be seen that in the embodiment, the mounting structure between the pipeline clamp 1 and the pipeline 3 can be a hoop structure or a pressing structure. The outer wall of the pipeline clamp 1 includes a transition section 112 and a mounting section 113. The interfaces of each transition section 112 are also fixed together by bolts to ensure the stability of the entire clamp structure. The mounting section 113 is a horizontal structure and is provided with a mounting section 114 to facilitate the bolt fixation of the damping base 21 on the mounting section 113.

[0039] Referring to Figure 7 It can be seen that in one embodiment, for the problem of severe multi-directional vibration of the pipeline, multiple damping devices 2 can be arranged on the pipeline clamp 1. The performance parameters such as mass, frequency and damping ratio of the damping devices are adjusted according to different vibration conditions to improve the damping effect.

[0040] Working principle: The pipeline clamp 1 is composed of at least two arc-shaped mounting plates 11, which are connected by bolts at the interfaces to form a complete ring structure, tightly fitted on the outer surface of the pipeline to ensure good fixing effect. At least two adapter plates 12 are provided on each arc-shaped mounting plate for installing the damping device and providing a fixing point for the damping base, so that the number and position of the damping devices can be flexibly arranged according to actual needs.

[0041] The damping device comprises a damping base 21 at the bottom, which is fixed on the mounting hole of the adapter plate or mounting section by bolts as the basic support of the whole damping device; the buffer 22 is installed between the damping base and the mass block 23, which plays a key role in absorbing and dissipating vibration energy, and different materials such as plastic, rubber, metal rubber or steel wire rope can be selected according to different application environments to adapt to different vibration frequencies and intensities; the mass block 23 is installed at the top of the damping device 2 and has a certain mass and inertia, which can be effectively tuned to the specific vibration frequency of the pipeline through the cooperation with the buffer 22, so as to absorb and dissipate vibration energy;

[0042] When the pipeline 3 vibrates, the vibration energy is transmitted to the damping base 21, and then absorbed by the buffer 22 and converted into heat energy or other forms of energy, and finally dissipated; the movement of the mass block 23 further enhances this process, and through the inertia of the mass block 23 and the elastic properties of the buffer 22, the vibration amplitude of the pipeline 3 is effectively reduced. The whole damping device 2 is fixed on the pipeline clamp 1 through the adapter plate 12 and the bolts, which simplifies the installation process and realizes rapid deployment without large-scale modification of the existing pipeline structure; if it is necessary to replace or repair the parts, they can be easily disassembled for processing by loosening the related bolts, which greatly facilitates the future maintenance and inspection work.

[0043] The preferred embodiments of the utility model are described in detail above, but the utility model is not limited to the specific details in the above embodiments, and various equivalent transformations of the technical solutions of the utility model can be made within the technical concept of the utility model, and these equivalent transformations all belong to the protection scope of the utility model.

Claims

1. A pipe vibration tuned mass damper, characterized by: The pipeline clamp (1) comprises a damping device (2), the damping device (2) comprises a damping base (21), a buffer (22) and a mass block (23), the damping base (21) is located at the bottom of the damping device (2), the mass block is installed at the top of the damping device (2), the buffer (22) is installed between the damping base (21) and the mass block (23), and the damping base (21) is installed on the pipeline clamp (1); the inner wall of the pipeline clamp (1) is in an arc structure, the outer wall comprises a transition section (112) and a mounting section (113); the interfaces of each transition section (112) are fixed together through bolts; the mounting section (113) is in a horizontal structure, the mounting section (113) is provided with a mounting hole (114), and the damping base (21) is installed on the mounting section through bolts.

2. The pipe vibration tuned mass damper according to claim 1, wherein, The pipeline clamp (1) is composed of at least two arc-shaped mounting plates (11), the interfaces of the arc-shaped mounting plates (11) are connected through bolts, each arc-shaped mounting plate (11) is provided with an adapter plate (12), and the damping device (2) is installed on the adapter plate (12) of each arc-shaped mounting plate (11).

3. The pipe vibration tuned mass damper of claim 2, wherein, At least two adapter plates (12) are installed on the arc-shaped mounting plate (11).

4. The tuned mass damper according to claim 1, wherein, The buffer (22) is made of plastic material, rubber, metal rubber or steel wire rope.

5. The tuned mass damper according to claim 3, wherein The damping base (21), the buffer (22), the mass block (23), the adapter plate (12) and the mounting section (113) are fixed together through bolts.

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