Chimney damping device

Abstract

The utility model provides a chimney damping device, which belongs to the technical field of chimney damping, and comprises a mounting assembly and an adjusting assembly, the mounting assembly comprises a mounting track annularly arranged on the periphery of a chimney and a mounting seat slidably connected to the mounting track, and the mounting track is connected to the chimney; the adjusting assembly comprises a fixing rod connected to the mounting base and a balance weight mechanism connected to the fixing rod, the fixing rod extends in the radial direction of the mounting rail, and the balance weight mechanism is located at the end, away from the mounting base, of the fixing rod. The balance weight mechanism comprises a balance weight block connected to the fixing rod in a sliding mode and two elastic pieces connected to the balance weight block, and the two elastic pieces are arranged on the two sides of the balance weight block respectively along the extending path of the fixing rod. The utility model provides a chimney damping device which aims at solving the problem that when an existing tuned mass damper faces nonlinear vibration, the damping effect of the damper is poor.

Description

Technical Field

[0001] This utility model belongs to the field of chimney vibration reduction technology, and more specifically, it relates to a chimney damping device. Background Technology

[0002] Chimneys vibrate under external forces such as wind or earthquakes, causing them to bend and deform. After bending, the chimney will return to its original shape due to its elasticity, resulting in oscillating motion. Chimney damping devices are used to reduce the vibration of chimneys under external factors such as wind loads and earthquakes. Common chimney damping devices include tuned mass dampers, liquid dampers, eddy current dampers, and viscoelastic dampers.

[0003] Currently, traditional tuned mass dampers are commonly used for vibration control in industrial chimneys. These dampers rely heavily on the precise design of the mass block and spring system; the mass block requires a large mass to function effectively, increasing the load on the chimney structure. Furthermore, traditional tuned dampers are primarily designed for linear vibrations, and their damping effect may be significantly reduced when facing nonlinear vibrations (such as strong winds or powerful earthquakes). Utility Model Content

[0004] The purpose of this invention is to provide a chimney damping device, which aims to solve the problem that existing tuned mass dampers have poor damping effect when facing nonlinear vibrations.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows:

[0006] In a first aspect, a chimney damping device is provided, comprising:

[0007] The mounting assembly includes a mounting track surrounding the outer periphery of the chimney and a mounting seat slidably connected to the mounting track, the mounting track being connected to the chimney; and

[0008] The adjustment assembly includes a fixed rod connected to the mounting base and a counterweight mechanism connected to the fixed rod. The fixed rod extends radially along the mounting track. The counterweight mechanism is located at one end of the fixed rod away from the mounting base. The counterweight mechanism includes a counterweight block slidably connected to the fixed rod and two elastic elements connected to the counterweight block. The two elastic elements are respectively disposed on both sides of the counterweight block along the extension path of the fixed rod.

[0009] In one possible implementation, the counterweight mechanism further includes an inner baffle and an outer baffle connected to the fixed rod, the inner baffle being connected to the inner elastic element and the outer baffle being connected to the outer elastic element.

[0010] In one possible implementation, the mounting track has a mounting groove along its extension path, and the mounting base includes a mounting body and a mounting wheel rotatably connected to the mounting body. The mounting wheel is rolled within the mounting groove, and the axis of the mounting wheel is parallel to the vertical direction, or the axis of the mounting wheel is parallel to the radial direction of the mounting track.

[0011] In one possible implementation, the mounting track has mounting grooves on its upper and lower sides, the mounting body has a receiving groove, the mounting wheel is disposed in the receiving groove, and each mounting groove has a mounting wheel.

[0012] In one possible implementation, the chimney damping device further includes a support assembly, the support assembly comprising:

[0013] Support frame, connected to the outer wall of the chimney;

[0014] A support rail is arranged around the outer periphery of the mounting rail and connected to the support frame; the support rail and the mounting rail are coaxially arranged.

[0015] A support base is slidably connected to the support rail and connected to the fixed rod, and the support base is used to provide support force to the fixed rod.

[0016] In one possible implementation, the mounting components are provided in multiple sets at intervals along the vertical direction, and the adjustment components and the support components are each provided in a one-to-one correspondence with the mounting components.

[0017] In one possible implementation, the support track has a support groove along its extension path, and the support base includes a support body and a support wheel rotatably connected to the support body. The support wheel is rolled within the support groove, and the axis of the support wheel is parallel to the radial direction of the support track.

[0018] In one possible implementation, the support grooves are respectively provided on the inner and outer sides of the support track, the support body is provided with a receiving groove, the support wheel is disposed in the receiving groove, and each support groove is provided with a support wheel.

[0019] In one possible implementation, the support frame includes a first support plate extending radially along the support track and a second support plate inclined in the vertical direction. Both the first and second support plates are connected to the chimney, and the second support plate is located below the first support plate. The first support plate, the second support plate, and the outer wall of the chimney form a triangular structure, and the support track is connected to the first support plate.

[0020] In one possible implementation, multiple support frames are evenly arranged along the circumference of the chimney.

[0021] The beneficial effects of the chimney damping device provided by this utility model are as follows: Compared with the prior art, when the chimney vibrates, the mounting track tilts with the chimney, creating a height difference in the entire mounting track. Under the gravity of the counterweight mechanism, the mounting base slides along the mounting track, thereby changing the mass distribution outside the chimney and generating a reverse inertial force to counteract the vibration energy of the chimney. The movement of the counterweight causes the elastic element to deform, and the compression and recovery characteristics of the elastic element further enhance the damping effect, reducing the vibration amplitude of the chimney. By utilizing the sliding of the counterweight along the fixed rod, combined with the elastic force of the elastic element, it can adapt to vibrations of different frequencies. Adjusting the position of the counterweight or the stiffness of the elastic element can optimize the frequency characteristics of the damper and adapt to various vibration conditions. This utility model uses the synergistic effect of the counterweight mechanism and the elastic element to effectively reduce the bending deformation of the chimney during vibration, improving the overall applicability and shock absorption effect. Attached Figure Description

[0022] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0023] Figure 1 A schematic diagram of the structure of the chimney damping device provided in the embodiment of this utility model;

[0024] Figure 2 for Figure 1 Enlarged view of part A in the middle;

[0025] Figure 3 for Figure 1 Enlarged view of part B in the middle;

[0026] Figure 4 for Figure 1 A magnified view of part C in the middle.

[0027] In the diagram: 1. Chimney; 2. Mounting assembly; 201. Mounting track; 202. Mounting base; 2021. Mounting body; 2022. Mounting wheel; 3. Adjustment assembly; 301. Fixing rod; 302. Counterweight mechanism; 3021. Counterweight block; 3022. Elastic element; 3023. Inner baffle; 3024. Outer baffle; 4. Support assembly; 401. Support frame; 4011. First support plate; 4012. Second support plate; 402. Support track; 403. Support base; 4031. Supporting body; 4032. Support wheel. Detailed Implementation

[0028] To make the technical problems, technical solutions, and beneficial effects of this utility model clearer, the present utility model 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 merely illustrative of the present utility model and are not intended to limit the present utility model.

[0029] In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "first," "second," or "third," etc., are used to distinguish different objects, not to describe a specific order. Unless otherwise stated, other directional terms, such as "vertical," "clockwise," and "counterclockwise," indicate orientation or positional relationships based on the orientation and positional relationships shown in the accompanying drawings, and are only for the convenience of describing the utility model and simplifying the description, not to indicate or imply that the referred device or element must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as limiting the specific scope of protection of this utility model. In the claims, description, and accompanying drawings of this utility model, unless otherwise expressly defined, the terms "fixed connection" or "fixed connection" should be interpreted broadly, that is, any connection method in which there is no displacement relationship or relative rotation relationship between the two, that is, including non-removable fixed connection, detachable fixed connection, integral connection, and fixed connection through other devices or elements. In the claims, description, and accompanying drawings of this utility model, the terms "comprising," "having," and their variations are intended to mean "including but not limited to."

[0030] Please refer to the following: Figures 1 to 4 The chimney damping device provided by this utility model will now be described. The chimney damping device includes an installation component 2 and an adjustment component 3. The installation component 2 includes an installation track 201 surrounding the outer periphery of the chimney 1 and an installation seat 202 slidably connected to the installation track 201. The installation track 201 is connected to the chimney 1. The adjustment component 3 includes a fixed rod 301 connected to the installation seat 202 and a counterweight mechanism 302 connected to the fixed rod 301. The fixed rod 301 extends radially along the installation track 201. The counterweight mechanism 302 is located at one end of the fixed rod 301 away from the installation seat 202. The counterweight mechanism 302 includes a counterweight block 3021 slidably connected to the fixed rod 301 and two elastic elements 3022 connected to the counterweight block 3021. The two elastic elements 3022 are respectively disposed on both sides of the counterweight block 3021 along the extension path of the fixed rod 301.

[0031] Compared with the prior art, the chimney damping device provided by this utility model tilts the mounting track 201 along with the chimney 1 when the chimney 1 vibrates, creating a height difference. Under the gravity of the counterweight mechanism 302, the mounting base 202 slides along the mounting track 201, thereby changing the mass distribution outside the chimney 1 and generating a reverse inertial force to counteract the vibration energy of the chimney 1. The movement of the counterweight 3021 causes the elastic element 3022 to deform. The compression and recovery characteristics of the elastic element 3022 further enhance the damping effect and reduce the vibration amplitude of the chimney 1. By utilizing the sliding of the counterweight 3021 along the fixed rod 301, combined with the elastic force of the elastic element 3022, it can adapt to vibrations of different frequencies. Adjusting the position of the counterweight 3021 or the stiffness of the elastic element 3022 can optimize the frequency characteristics of the damper and adapt to various vibration conditions. This utility model employs a counterweight mechanism 302 and an elastic element 3022 working together to effectively reduce the bending deformation of the chimney 1 during vibration, thereby improving the overall applicability and shock absorption effect.

[0032] It should be noted that "inner" refers to the radial direction of chimney 1, close to the central axis of chimney 1, while the opposite direction is "outer".

[0033] In some embodiments, please refer to Figure 1 and Figure 3 The counterweight mechanism 302 also includes an inner baffle 3023 and an outer baffle 3024 connected to the fixed rod 301. The inner baffle 3023 is connected to the inner elastic element 3022, and the outer baffle 3024 is connected to the outer elastic element 3022.

[0034] In this embodiment, the inner baffle 3023 and the outer baffle 3024 are used to limit the two elastic elements 3022 respectively, thereby improving the positional stability of the elastic elements 3022, and thus limiting the movement stroke of the counterweight 3021 and improving the damping effect.

[0035] In some embodiments, please refer to Figure 1 The mounting track 201 has a mounting groove along its extension path. The mounting base 202 includes a mounting body 2021 and a mounting wheel 2022 rotatably connected to the mounting body 2021. The mounting wheel 2022 is rolled in the mounting groove. The axis of the mounting wheel 2022 is parallel to the vertical direction, or the axis of the mounting wheel 2022 is parallel to the radial direction of the mounting track 201.

[0036] The mounting wheels 2022 roll within the mounting groove, significantly reducing friction between the mounting base 202 and the mounting track 201, ensuring smooth movement of the mounting body 2021 on the track. The rolling design reduces energy loss and improves the device's motion efficiency. Furthermore, the mounting groove provides good guidance and restraint for the mounting wheels 2022, preventing the mounting base 202 from detaching from the mounting track 201, thus making the overall structure more stable and enhancing its load-bearing capacity. This embodiment achieves the goals of smooth movement, reduced friction, and improved stability.

[0037] In some embodiments, please refer to Figure 2 The mounting track 201 has mounting grooves on its upper and lower sides, the mounting body 2021 has a receiving groove, the mounting wheel 2022 is located in the receiving groove, and each mounting groove is provided with a mounting wheel 2022.

[0038] First, the symmetrical design of the mounting slots provides dual guidance and support for the mounting base 202, ensuring the stability and balance of the device during movement and effectively preventing swaying or displacement of the mounting base 202. Second, the mounting wheels 2022 are located within the receiving slots and engage with the mounting slots via rolling connections, significantly reducing friction and energy loss, allowing the device to move smoothly and steadily along the track, while also reducing operating noise and vibration. Furthermore, each mounting slot is equipped with a mounting wheel 2022, further enhancing the device's load-bearing capacity and stability, enabling it to adapt to larger loads and more complex motion requirements. The solution in this embodiment also improves the durability and reliability of the device, as the rolling connection reduces wear and extends service life. Finally, the modular design of the mounting slots and mounting wheels 2022 makes installation and maintenance more convenient, while also providing flexibility for the expansion and combined use of the device.

[0039] In some embodiments, please refer to Figure 1 and Figure 4 The chimney damping device also includes a support assembly 4, which includes a support frame 401, a support rail 402, and a support base 403. The support frame 401 is connected to the outer wall of the chimney 1. The support rail 402 is arranged around the outer periphery of the mounting rail 201 and connected to the support frame 401. The support rail 402 and the mounting rail 201 are coaxially arranged. The support base 403 is slidably connected to the support rail 402 and connected to the fixed rod 301. The support base 403 is used to provide support force for the fixed rod 301.

[0040] The support assembly 4, in conjunction with the mounting assembly 2, provides additional support for the fixed rod 301, effectively distributing the load between the fixed rod 301 and the counterweight mechanism 302, reducing the risk of bending deformation of the fixed rod 301, and thus improving the overall rigidity and durability of the device. Through the synergistic effect of the support frame 401, support rail 402, and support base 403, the support assembly 4 further enhances the overall performance and reliability of the device. The support frame 401 is connected to the outer wall of the chimney 1, providing a stable mounting base for the support rail 402, ensuring that the entire device can be firmly fixed to the chimney 1, enhancing the stability and safety of the device. The support rail 402 is arranged around the outer periphery of the mounting rail 201 and coaxially with it. This design not only provides an additional movement track for the fixed rod 301, but also ensures synchronous movement of the support base 403 and the mounting base 202 through coaxial arrangement, avoiding movement interference or structural stress concentration caused by misalignment. Furthermore, the introduction of support component 4 enhances the device's vibration resistance, providing additional damping when chimney 1 vibrates, further reducing the deformation and vibration amplitude of chimney 1. Overall, the design of support component 4 significantly improves the performance and reliability of the chimney damping device by enhancing the device's stability, distributing the load, and improving its vibration resistance, making it suitable for more complex and harsh working environments.

[0041] In some embodiments, please refer to Figure 1 The mounting component 2 is provided with multiple sets at intervals along the vertical direction, and the adjustment component 3 and the support component 4 are set one-to-one with the mounting component 2.

[0042] The distributed design of multiple sets of mounting components 2 covers the entire height range of chimney 1, forming a top-down distributed damping system. This layout allows the device to more comprehensively cope with the vibration and deformation of chimney 1 at different heights, significantly improving the overall vibration reduction effect. The coordinated operation of multiple sets of devices also improves the redundancy of the system; even if one set of devices fails, the others can continue to function, ensuring the overall safety of chimney 1.

[0043] In some embodiments, please refer to Figure 1 and Figure 4 The support rail 402 has a support groove along its extension path. The support base 403 includes a support body 4031 and a support wheel 4032 rotatably connected to the support body 4031. The support wheel 4032 is rolled in the support groove, and the axis of the support wheel 4032 is parallel to the radial direction of the support rail 402.

[0044] The support groove provides precise guidance and positioning for the support wheel 4032, ensuring that the support base 403 can move smoothly and steadily along the support rail 402, reducing friction and energy loss during movement. This rolling connection design not only improves the device's movement efficiency but also significantly reduces operating noise and vibration, enhancing operational comfort. The axis of the support wheel 4032 is parallel to the radial direction of the support rail 402, allowing it to better adapt to radial movement requirements and provide stable radial support force for the fixed rod 301. This arrangement effectively distributes the load between the fixed rod 301 and the counterweight mechanism 302, reducing the risk of bending deformation of the fixed rod 301, thereby improving the overall rigidity and durability of the device. Furthermore, the rolling design of the support wheel 4032 reduces wear between the support base 403 and the support rail 402, extending the device's service life and reducing maintenance costs. The cooperation between the support groove and the support wheel 4032 also enhances the device's vibration resistance, providing additional damping when the chimney 1 vibrates, further reducing the deformation and vibration amplitude of the chimney 1.

[0045] In some embodiments, please refer to Figure 4 Support grooves are provided on the inner and outer sides of the support rail 402, and a receiving groove is provided on the support body 4031. Support wheels 4032 are provided in the receiving grooves, and each support groove is provided with a support wheel 4032.

[0046] The support grooves on both the inner and outer sides of the support rail 402 provide dual guidance and support for the support base 403, significantly enhancing the stability and balance of the device. This symmetrical arrangement effectively prevents the support base 403 from shifting or tilting during movement, ensuring smoother and more reliable movement of the device along the support rail 402. Secondly, the support wheels 4032 are located within the receiving grooves of the support body 4031 and engage with the support grooves via rolling connections, significantly reducing friction and energy loss between the support base 403 and the support rail 402. This rolling design not only improves the device's movement efficiency but also reduces operating noise and vibration, enhancing operational comfort. Furthermore, the presence of support wheels 4032 within each support groove further enhances the device's load-bearing capacity and stability, enabling it to adapt to larger loads and more complex movement requirements. The distributed design of the support wheels 4032 also improves the device's vibration resistance, providing additional damping when the chimney 1 vibrates, further reducing the deformation and vibration amplitude of the chimney 1.

[0047] In some embodiments, please refer to Figure 1The support frame 401 includes a first support plate 4011 extending radially along the support rail 402 and a second support plate 4012 inclined in the vertical direction. Both the first support plate 4011 and the second support plate 4012 are connected to the chimney 1, and the second support plate 4012 is located below the first support plate 4011. The first support plate 4011, the second support plate 4012 and the outer wall of the chimney 1 form a triangular structure. The support rail 402 is connected to the first support plate 4011.

[0048] The first support plate 4011 extends radially along the support rail 402, providing a stable mounting base for the support rail 402 and ensuring that the support rail 402 can be firmly fixed to the chimney 1. This design not only enhances the stability of the support rail 402 but also enables it to better withstand the loads from the support base 403 and the fixing rod 301. The second support plate 4012 is inclined vertically and forms a triangular structure with the first support plate 4011 and the outer wall of the chimney 1. This triangular layout makes full use of the geometric stability of the structure, significantly improving the overall rigidity and deformation resistance of the support frame 401, effectively dispersing and transferring loads, and reducing local stress concentration. In addition, the triangular structure design also improves the vibration resistance of the device, providing additional support and damping when the chimney 1 vibrates, further reducing the deformation and vibration amplitude of the chimney 1.

[0049] In some embodiments, please refer to Figure 1 Multiple support frames 401 are evenly provided along the circumference of the chimney 1.

[0050] Multiple support frames 401 are evenly distributed around the chimney 1, providing comprehensive support and fixation to ensure balanced load-bearing capacity and stability of the device in all directions. This even distribution effectively avoids localized stress concentration, reducing the risk of deformation or damage to the chimney 1 during vibration. The multiple support frames 401 also improve the redundancy and reliability of the device. Even if one support frame 401 fails or is damaged, the others can continue to function, ensuring that the overall performance of the device remains unaffected.

[0051] The above description is only a preferred embodiment of the present utility model and is not intended to limit the present utility model. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.

Claims

1. A chimney damping device, characterized in that, include: The mounting assembly includes a mounting track surrounding the outer periphery of the chimney and a mounting seat slidably connected to the mounting track, the mounting track being connected to the chimney; as well as The adjustment assembly includes a fixed rod connected to the mounting base and a counterweight mechanism connected to the fixed rod. The fixed rod extends radially along the mounting track. The counterweight mechanism is located at one end of the fixed rod away from the mounting base. The counterweight mechanism includes a counterweight block slidably connected to the fixed rod and two elastic elements connected to the counterweight block. The two elastic elements are respectively disposed on both sides of the counterweight block along the extension path of the fixed rod.

2. The chimney damping device as described in claim 1, characterized in that, The counterweight mechanism further includes an inner baffle and an outer baffle connected to the fixed rod. The inner baffle is connected to the inner elastic element, and the outer baffle is connected to the outer elastic element.

3. The chimney damping device as described in claim 1, characterized in that, The mounting track has a mounting groove along its extension path. The mounting base includes a mounting body and a mounting wheel rotatably connected to the mounting body. The mounting wheel is rolled within the mounting groove. The axis of the mounting wheel is parallel to the vertical direction, or the axis of the mounting wheel is parallel to the radial direction of the mounting track.

4. The chimney damping device as described in claim 3, characterized in that, The mounting track has mounting grooves on its upper and lower sides, the mounting body has a receiving groove, the mounting wheel is located in the receiving groove, and each mounting groove has a mounting wheel.

5. The chimney damping device as described in claim 1, characterized in that, The chimney damping device further includes a support assembly, which comprises: Support frame, connected to the outer wall of the chimney; A support rail is arranged around the outer periphery of the mounting rail and connected to the support frame; the support rail and the mounting rail are coaxially arranged. A support base is slidably connected to the support rail and connected to the fixed rod, and the support base is used to provide support force to the fixed rod.

6. The chimney damping device as described in claim 5, characterized in that, The mounting components are provided in multiple sets at intervals along the vertical direction, and the adjustment components and the support components are each provided in a one-to-one correspondence with the mounting components.

7. The chimney damping device as described in claim 5, characterized in that, The support track has a support groove along its extension path. The support base includes a support body and a support wheel rotatably connected to the support body. The support wheel is rolled within the support groove, and the axis of the support wheel is parallel to the radial direction of the support track.

8. The chimney damping device as described in claim 7, characterized in that, The support track has support grooves on its inner and outer sides, the support body has a receiving groove, the support wheel is located in the receiving groove, and each support groove has a support wheel.

9. The chimney damping device as described in claim 5, characterized in that, The support frame includes a first support plate extending radially along the support track and a second support plate inclined in the vertical direction. Both the first support plate and the second support plate are connected to the chimney, and the second support plate is located below the first support plate. The first support plate, the second support plate and the outer wall of the chimney form a triangular structure, and the support track is connected to the first support plate.

10. The chimney damping device as described in claim 5, characterized in that, The support frame is evenly provided in multiple parts along the circumference of the chimney.

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