CN217463472U

CN217463472U - Pipeline vibration damper

Info

Publication number: CN217463472U
Application number: CN202220992546.XU
Authority: CN
Inventors: 莫非; 罗元易
Original assignee: Xiamen Quietime Co Ltd
Current assignee: Xiamen Quietime Co Ltd
Priority date: 2022-04-27
Filing date: 2022-04-27
Publication date: 2022-09-20
Anticipated expiration: 2032-04-27

Abstract

The utility model discloses a pipeline vibration damper, including viscous damper and two at least particle dampers that set up along pipeline length direction interval, the particle damper includes casing, casing and a plurality of damping particle down, go up casing and the relative lock of casing down and just wholly be the ring form in the pipeline outside, go up the casing and the inside damping cavity that has all seted up of casing down, the damping particle is filled inside the damping cavity, the viscous damper is connected in the particle damper bottom. The utility model discloses coupling particle attenuator carries out the damping with viscous damper, wholly is the annular particle attenuator of circle and can laminates the pipeline well, with pipeline rigid connection, in pipeline axial when the vibration takes place and upwards fully dissipate the vibration energy with footpath, and some low frequency vibration then can transmit to viscous damper, utilize the viscidity limit of viscous fluid to make further control, both inter combination, can effective control pipeline vibration, the absorbing is respond well.

Description

Pipeline vibration damper

Technical Field

The utility model relates to a damping equipment technical field, in particular to pipeline vibration damper.

Background

A pipeline is a device for transporting a gas, liquid or fluid with solid particles, connected by pipes, pipe couplings, valves, etc. As a common conveying device, a pipeline is widely used, but in the process of conveying a medium, the phenomenon of pipeline vibration generally exists. Vibration of the pipe can be caused by the operation of mechanical equipment, pulsation of fluid and the like. Slight vibration can be processed through the rigidity of the pipeline, a fixed support and the like, so that the pipeline system cannot be greatly influenced, but continuous strong vibration can generate larger alternating stress at the connecting parts of the pipeline, accessories, the support and the like, so that the fatigue failure of the whole pipeline system is caused, serious consequences such as welding line cracking, bolt loosening, instrument damage, even medium leakage and the like are caused, and the safe operation of the pipeline is threatened.

At present, in order to slow down pipeline vibration, it is common damping measure to add and establish pipeline damping device, but most use rubber or spring as the support for current pipeline damping device, and the damping effect is not good, and some damping device structure complicacy manufacturing cost height is unsuitable for large tracts of land to use widely in addition.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a pipeline vibration damper can slow down the pipeline vibration phenomenon betterly.

In order to realize the purpose, the utility model discloses a technical scheme as follows:

the utility model provides a pipeline vibration damper, includes viscous damper and two at least particle dampers that set up along pipeline length direction interval, particle dampers includes casing, casing and a plurality of damping particle down, go up the casing and be the ring form with the relative lock of casing in the pipeline outside and whole down, go up the casing and the inside damping cavity of having all seted up of casing down, the damping particle is filled inside the damping cavity, the viscous damper is connected in particle dampers bottom.

Furthermore, the upper shell and the lower shell are detachably connected through a threaded fastener.

Further, viscous damper includes shell body, viscous fluid and piston structure, the inside closed cavity that has of shell body, viscous fluid fills in the middle of the closed cavity, piston structure includes the connecting rod of piston clamp plate and a plurality of vertical settings, the piston clamp plate sets up in closed cavity, connecting rod one end is fixed mutually with the particle damper, and the other end pierces through the shell body and is fixed mutually with the piston clamp plate to can drive the piston clamp plate and move about from top to bottom. Under the mutual engagement of the connecting rods, some low frequency vibrations can be transmitted from the particle damper to the viscous damper via the connecting rods, controlling the vibrations under the viscosity limitation of the high viscosity viscous liquid.

Further, the viscous liquid is liquid asphalt. The viscous damper is made of liquid asphalt as viscous liquid, so that the production cost is low, and the large-area popularization and use of the device are facilitated.

Furthermore, a sealing ring is arranged at a position on the outer shell body through which the connecting rod passes, and the sealing ring is sleeved on the outer side of the connecting rod. Can prevent the viscous liquid from overflowing under the condition of not influencing the movement of the connecting rod.

Further, the sealing ring is arranged on the outer side of the outer shell. The viscous liquid can be prevented from being contaminated by the sealing ring as much as possible.

Furthermore, the bottom of the outer shell is provided with a plurality of support rods. The support rod is used for fixed mounting, and the bottom of the viscous damper can be mutually fixed with the support, the ground and the like through the support rod.

Furthermore, the number of particle dampers is two, the connecting rods are provided with two groups, and the viscous dampers are fixed with the two particle dampers through the two groups of connecting rods respectively.

The utility model discloses following beneficial effect has:

1. this vibration damper coupling particle attenuator carries out the damping with viscous damper, the whole ring form structure that is of particle attenuator can laminate the pipeline profile well, with pipeline rigid connection, when the vibration takes place, go up the casing and the internal damping particle collision of inferior valve, the high frequency vibration of pipeline is directly consumed in the friction, and some low frequency vibration then can transmit to viscous damper, utilize the viscidity restriction of viscous liquid to do further control to the vibration, both inter combination can effectively slow down pipeline vibration, the effectual of damping.

2. The particle dampers are arranged at intervals along the length direction of the pipeline, damping particles are filled in the upper shell and the lower shell of each particle damper, and the vibration energy of the pipeline can be fully dissipated in the axial direction and the radial direction of the pipeline.

3. The vibration damper is simple in structure and convenient to install, adopts liquid asphalt as viscous liquid, is low in production cost, and is favorable for large-area popularization and use.

Drawings

Fig. 1 is a front view of the structure of the present invention.

Fig. 2 is a schematic side view of the present invention.

Fig. 3 is a schematic view of the top view structure of the present invention.

Description of the main component symbols: 1. a particle damper; 11. an upper housing; 12. a lower housing; 13. a threaded fastener; 14. damping particles; 2. a viscous damper; 21. an outer housing; 211. sealing the cavity; 22. viscous fluid; 23. a piston structure; 231. a piston pressure plate; 232. a connecting rod; 24. a seal ring; 25. a support rod.

Detailed Description

The present invention will be further described with reference to the accompanying drawings and the following detailed description.

As shown in fig. 1-3, the utility model discloses a pipeline vibration damper, including viscous damper 2 and at least two particle dampers 1 that set up along pipeline length direction interval, particle damper 1 includes casing 11, casing 12 and a plurality of damping particle 14 down, goes up casing 11 and casing 12 relative lock down and just wholly is the ring form in the pipeline outside, goes up casing 11 and casing 12 inside vibration damping cavity (not shown in the figure) has all been seted up down, damping particle 14 fills inside the vibration damping cavity, viscous damper 2 connects in particle damper 1 bottom.

The upper shell 11 and the lower shell 12 are detachably connected through a threaded fastener 13 such as a bolt and a nut, and the installation is simple and convenient. Viscous damper 2 includes shell body 21, viscous liquid 22 and piston structure 23, and shell body 21 is inside to have closed cavity 211, and viscous liquid 22 fills in closed cavity 211, and piston structure 23 includes piston clamp plate 231 and a plurality of vertical connecting rod 232 that sets up, and piston clamp plate 231 sets up in closed cavity 211, and connecting rod 232 one end is fixed mutually with particle damper 1, and the other end pierces through shell body 21 and piston clamp plate 231 and fixes mutually to can drive piston clamp plate 231 activity from top to bottom.

The viscous liquid 22 filled in the closed cavity 211 is liquid asphalt, and the liquid asphalt is used as the viscous liquid 22, so that the production cost is lower compared with other hydraulic oil with high viscosity, and the large-area popularization and use of the vibration damping device are facilitated. The position on the outer shell 21 for the connecting rod 232 to pass through is provided with a sealing ring 24, the sealing ring 24 is sleeved outside the connecting rod 232, and the sealing ring 24 is arranged, so that the viscous liquid 22 can be prevented from overflowing while the vertical movement of the connecting rod 232 is not interfered. Further, the packing 24 is provided outside the outer case 21, and the packing 24 is prevented from contacting the viscous liquid 22 as much as possible. The bottom of the outer shell 21 of the viscous damper 2 is provided with a plurality of support rods 25, and the viscous damper can be fixed with the ground, a bracket and the like through the support rods 25. In addition, the connecting rods 232 on the viscous damper 2, which are mutually connected with the particle dampers 1, can be uniformly provided with a plurality of groups according to the number of the particle dampers 1, for example, as shown in fig. 2, the number of the particle dampers 1 is two, the connecting rods 232 are provided with two groups, and the viscous damper 2 is respectively fixed with the two particle dampers 1 through the two groups of the connecting rods 232.

When the pipeline vibrates, the vibration can be transmitted to the hoop type particle damper 1, and the high-frequency vibration energy of the pipeline is directly dissipated by utilizing inelastic collision and friction generated among the damping particles 14. The particle dampers 1 are arranged at intervals along the length direction of the pipeline, and damping particles 14 are filled in the upper shell 11 and the lower shell 12 of each particle damper 1, so that the vibration energy of the pipeline can be fully dissipated in the axial direction and the radial direction of the pipeline. And some low-frequency vibration can be transmitted to the viscous damper 2 at the bottom through the connecting rod 232, and the vibration is further controlled by using the viscosity limit of the high-viscosity viscous liquid 22 in the viscous damper 2. The particle damper 1 and the viscous damper 2 are coupled with each other to effectively slow down the pipeline vibration, so that the vibration reduction device is wider in applicable vibration reduction frequency band and good in vibration reduction effect.

Besides, the vibration damper is simple in structure, suitable for vibration control of various pipelines, simple and convenient to install, capable of well fitting the outer contour of the pipeline and fixing the pipeline together through the hoop type upper shell 11 and the lower shell 12, free of changing the original structure of a vibrating object in the using process, and meanwhile, the viscous damper 2 at the bottom adopts liquid asphalt as the viscous liquid 22 to reduce the cost of the viscous liquid 22, and is beneficial to large-area popularization and use of the vibration damper.

While the invention has been particularly shown and described with reference to a preferred embodiment, it will be understood by those skilled in the art that various changes in form and detail may be made therein without departing from the spirit and scope of the invention as defined by the appended claims.

Claims

1. A pipe vibration damping device characterized by: including viscous damper and two at least particle dampers that set up along pipeline length direction interval, particle damper includes casing, casing and a plurality of damping particle down, go up the casing and be the ring form with the relative lock of casing in the pipeline outside and whole down, go up the casing and the inside damping cavity that has all seted up of casing down, the damping particle is filled inside the damping cavity, viscous damper connects in particle damper bottom.

2. A vibration damping device for a pipe as defined in claim 1, wherein: the upper shell and the lower shell are detachably connected through a threaded fastener.

3. A vibration damping device for a pipe as defined in claim 1, wherein: viscous damper includes shell body, viscous liquid and piston structure, the inside closed cavity that has of shell body, viscous liquid is filled in the middle of the closed cavity, piston structure includes the connecting rod of piston clamp plate and a plurality of vertical settings, the piston clamp plate sets up in closed cavity, connecting rod one end is fixed mutually with the particle damper, and the other end pierces through the shell body and fixes mutually with the piston clamp plate to can drive the piston clamp plate and move about from top to bottom.

4. A vibration damping device for a pipe as set forth in claim 3, wherein: the viscous liquid is liquid asphalt.

5. A vibration damping device for a pipe as set forth in claim 3, wherein: the position department that supplies the connecting rod to pass on the shell body is provided with the sealing washer, the sealing washer cover is established in the connecting rod outside.

6. A vibration damping device for a pipe as set forth in claim 5, wherein: the sealing ring is arranged on the outer side of the outer shell.

7. A vibration damping device for a pipe as set forth in claim 3, wherein: the bottom of shell body is provided with a plurality of bracing pieces.

8. A vibration damping device for a pipe as defined in claim 3, wherein: the particle dampers are two in number, the connecting rods are provided with two groups, and the viscous dampers are fixed with the two particle dampers through the two groups of connecting rods respectively.