CN112664746A - Three-way frequency-adjustable vibration reduction device for conveying pipe, conveying system and method - Google Patents
Three-way frequency-adjustable vibration reduction device for conveying pipe, conveying system and method Download PDFInfo
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- CN112664746A CN112664746A CN202011549052.6A CN202011549052A CN112664746A CN 112664746 A CN112664746 A CN 112664746A CN 202011549052 A CN202011549052 A CN 202011549052A CN 112664746 A CN112664746 A CN 112664746A
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Abstract
本公开涉及一种用于输送管的三向可调频减振装置、输送系统及方法，包括能够固定在输送管外部的夹具，以及通过夹具固定的多个弹簧片；弹簧片的外部安装有质量块，弹簧片的一端与夹具固定，另一端沿输送管的径向延伸，弹簧片分为与输送管轴线方向垂直的第一弹簧片，以及分别与第一弹簧片垂直的第二弹簧片和第三弹簧片，第二弹簧片与第三弹簧片相互垂直。本公开所述的用于管道的三向可调频减振装置结构简单，具有理想的减振效果，安装和调频方便，具有极高的工程应用价值。
The present disclosure relates to a three-way adjustable frequency vibration damping device for a conveying pipe, a conveying system and a method, comprising a clamp that can be fixed outside the conveying pipe, and a plurality of spring pieces fixed by the clamp; One end of the spring sheet is fixed with the clamp, and the other end extends along the radial direction of the conveying pipe. The third spring piece, the second spring piece and the third spring piece are perpendicular to each other. The three-way frequency-adjustable vibration damping device for pipelines described in the present disclosure has a simple structure, has ideal vibration damping effect, is convenient for installation and frequency regulation, and has extremely high engineering application value.
Description
Technical Field
The disclosure belongs to the technical field of vibration isolation and damping equipment, and particularly relates to a three-way frequency-adjustable vibration damping device and method for a conveying pipe.
Background
The statements herein merely provide background related to the present disclosure and may not necessarily constitute prior art.
The pipeline system is an important engineering structure and has wide application in the fields of petroleum, chemical engineering and the like. Due to the influence of the external environment and the action of fluid in the pipeline, the pipeline system can generate complex vibration, and certain influence is exerted on the safety and the service life of the pipeline.
The vibration problem of pipe systems is mainly solved at present by using damping materials and reasonably designing the pipes. The vibration absorber can be flexibly arranged on the pipeline, is suitable for various environments and has good vibration absorbing effect.
The inventor has appreciated that a dynamic vibration absorber is a typical vibration absorber and its principle is to attach a spring mass resonance system to the vibrating object, which generates a reaction force at resonance to reduce the vibration of the vibrating object. However, since the vibration frequencies of different pipe systems are different, vibration absorbers suitable for vibration reduction in different frequency bands are manufactured; meanwhile, in consideration of the vibration response directivity of the pipeline system, the vibration absorber is required to have vibration absorbing capacity in three directions so as to absorb vibration in any direction in the pipeline, and the vibration absorbing effect of the vibration absorber in different directions and different frequencies is poor in the existing scheme.
Disclosure of Invention
The present disclosure is directed to a three-way tunable vibration damping device for a conveying pipe, a conveying system and a method thereof, which can solve at least one of the above problems.
To achieve the above objects, one or more embodiments of the present disclosure provide a three-way tunable vibration damping device for a transmission pipe, including a clamp capable of being fixed to an outside of the transmission pipe, and a plurality of spring pieces fixed by the clamp; the mass block is arranged outside the spring piece, one end of the spring piece is fixed with the clamp, the other end of the spring piece extends along the radial direction of the conveying pipe, the spring piece is divided into a first spring piece which is vertical to the axial direction of the conveying pipe, a second spring piece and a third spring piece which are vertical to the first spring piece respectively, and the second spring piece is vertical to the third spring piece.
As a further improvement, the first spring piece, the second spring piece and the third spring piece are used in pairs, and the two spring pieces used in pairs are symmetrically arranged about the central axis of the conveying pipe.
As a further improvement, the number of the first spring pieces, the second spring pieces and the third spring pieces is two, and the plurality of spring pieces are uniformly distributed along the outer circular surface of the conveying pipe.
As a further improvement, the spring piece is externally sleeved with a mass block, and the mass block can slide and be fixed along the extension direction of the spring piece.
In the method, the mode that the mass block can slide and be fixed along the spring piece is adopted, namely the relative position of the mass block and the spring piece can be changed, and the damping capacity of the three-way frequency-adjustable damping device is adjusted.
As a further improvement, the spring piece is structured as follows: the vibration of the spring piece in the direction perpendicular to the vibration direction can be attenuated.
As a further improvement, the clamp is provided with an annular clamping surface which can be attached to the outer circle side surface of the conveying pipe so as to transmit vibration.
One or more embodiments of the present disclosure also provide a pipe conveying system capable of realizing three-way frequency modulation vibration damping, including a conveying pipe, wherein the three-way frequency modulation vibration damping device for the conveying pipe is installed outside the conveying pipe.
One or more embodiments of the present disclosure also provide a damping method for a transmission pipe, which utilizes the three-way adjustable frequency damping device for a transmission pipe, including the following steps:
according to the vibration frequency to be suppressed, an adaptive spring piece is arranged outside the clamp, and a mass block is fixed at a set position outside the spring piece;
fixing the clamp outside the conveying pipe;
when the conveying pipe vibrates, the vibration in any direction in the conveying pipe can be decomposed into three directions of vibration perpendicular to the first spring piece, the second spring piece and the third spring piece respectively;
the vibration in three directions is absorbed and suppressed by the vibration absorbing elements consisting of the first spring piece, the second spring piece, the third spring piece and the mass block.
The beneficial effects of one or more of the above technical solutions are as follows:
in the present disclosure, the clamp is used for transmitting the vibration of the pipeline to the spring piece for attenuation and inhibition; a space rectangular coordinate system can be formed by utilizing three directions respectively vertical to the first spring piece, the second spring piece and the third spring piece, so that the vibration in any direction transmitted from the pipeline can be decomposed into three directions in the space rectangular coordinate system, and the first spring piece, the second spring piece, the third spring piece and the combination of the spring pieces and the mass blocks are utilized to correspondingly attenuate and inhibit the sub-vibration in the corresponding directions; the vibration absorber in this scheme can realize the absorption of arbitrary direction vibration promptly.
The device changes the position and the mass of the mass block and the type of the spring piece, so that the vibration absorption frequency of the three-way frequency-adjustable vibration absorption device can be adjusted according to the change of response frequency, and an ideal vibration suppression effect is achieved; the three-way frequency-adjustable vibration damper has the advantages of simple structure, wide application range, convenient installation and frequency modulation, capability of meeting the requirements of various complex pipeline systems and extremely high engineering application value.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure and not to limit the disclosure.
Fig. 1 is a schematic view of the overall structure in one or more embodiments of the present disclosure.
In the figure, 1, a clamp; 2. a bolt; 3. a spring plate; 31. a first spring plate; 32. a second spring plate; 33. a third spring plate; 4. a mass block; 5. a delivery pipe.
Detailed Description
It should be noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure. Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
For convenience of description, the words "up, down, left and right" in this disclosure, if any, merely indicate correspondence with the up, down, left and right directions of the drawings themselves, and do not limit the structure, but merely facilitate description of the disclosure and simplify description, rather than indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the disclosure.
Example 1
As shown in fig. 1, the embodiment provides a three-way frequency-adjustable vibration damping device for a conveying pipe, which mainly comprises a spring plate and a mass block, wherein the system is used for absorbing vibration of a pipeline, so that resonance of the pipeline and forced vibration of the system are effectively reduced. The three-way frequency-adjustable vibration damping device is characterized in that the vibration damping characteristic of the three-way frequency-adjustable vibration damping device is adjusted by moving the mass block on the spring piece.
Specifically, the device comprises a clamp 1 which can be fixed outside a conveying pipe 5, and a plurality of spring pieces 3 fixed by the clamp 1; the spring piece is externally provided with a mass block, one end of the spring piece 3 is fixed with the clamp through a bolt, the other end of the spring piece extends along the radial direction of the conveying pipe 5, the spring piece 3 is divided into a first spring piece 31 which is vertical to the axial direction of the conveying pipe 5, a second spring piece 32 and a third spring piece 33 which are respectively vertical to the first spring piece 31, and the second spring piece 32 and the third spring piece 33 are vertical to each other.
The first spring piece 31, the second spring piece 32, and the third spring piece 33 are used in pairs, and the two spring pieces 3 used in pairs are arranged symmetrically with respect to the central axis of the carrier pipe 5.
The number of the first spring pieces 31, the second spring pieces 32 and the third spring pieces 33 is two, and the plurality of spring pieces 3 are uniformly distributed along the outer circular surface of the conveying pipe 5.
The spring piece 3 is sleeved with a mass block 4, and the mass block 4 can slide and be fixed along the extending direction of the spring piece 3.
The spring plate 3 is structured such that: the vibration in the direction perpendicular to the spring piece 3 can be damped.
The clamp is provided with an annular clamping surface, and the annular clamping surface can be attached to the outer circle side surface of the conveying pipe 5 to transfer vibration.
A through groove penetrating through the mass block 4 is formed in the mass block 4 and is used for penetrating through the spring piece 3, bolt holes are formed in the side wall of the mass block 4 and penetrate through the outer side face of the mass block 4 and the inner wall face of the through groove, and jacking bolts are arranged in the bolt holes.
The clamp is of a hoop structure and comprises a first hoop and a second hoop, and the first hoop and the second hoop are detachably fixed. Specifically, the first hoop and the second hoop are connected through bolts, and the first hoop and the second hoop are detachably fixed through the bolts.
In this embodiment, the spring plate is a non-metal or metal structure with elasticity, and is used for providing elasticity for the three-way frequency-adjustable vibration damping device;
in this embodiment, the spring plate is provided with scales for realizing accurate adjustment of the position of the mass block on the spring plate;
the working principle is as follows:
installing the clamping piece on the pipeline in a bolt fixing mode;
connecting the clamping piece, the spring piece and the mass block through bolts;
the vibration suppression characteristics of the three-way frequency-adjustable vibration damper in three directions (two radial directions and one axial direction) are adjusted by adjusting the position of the mass block on the spring piece;
compared with the existing damping device, the damping device has the following beneficial effects:
according to the three-way frequency-adjustable vibration damping device, the spring pieces and the mass blocks form vibration absorption elements, and the vibration damping characteristics of the three-way frequency-adjustable vibration damping device in three directions (two radial directions and one axial direction) are adjusted by adjusting the six vibration absorption elements;
the three-way frequency-adjustable vibration damping device enables the vibration absorption frequency of the three-way frequency-adjustable vibration damping device to be adjusted according to the change of response frequency by changing the position and the mass of the mass block and changing the types of the spring pieces, so that an ideal vibration suppression effect is achieved; the three-way frequency-adjustable vibration damper has the advantages of simple structure, wide application range, convenient installation and frequency modulation, capability of meeting the requirements of various complex pipeline systems and extremely high engineering application value.
Example 2
As shown in fig. 1, the present embodiment provides a pipeline transportation system capable of three-way frequency modulation vibration damping, which includes a transportation pipe 5, and the three-way frequency modulation vibration damping device for the transportation pipe 5 is installed outside the transportation pipe 5.
Example 3
The embodiment provides a vibration damping method for a conveying pipe, which utilizes the three-way adjustable frequency vibration damping device for the conveying pipe 5, and comprises the following steps:
step 2, fixing the clamp outside the conveying pipe 5;
step 3, when the conveying pipe 5 vibrates, the vibration in any direction in the conveying pipe 5 can be decomposed into three directions vertical to the first spring piece 31, the second spring piece 32 and the third spring piece 33 respectively;
and 4, respectively absorbing and inhibiting the sub-vibration in the three directions by the vibration absorbing elements consisting of the first spring piece 31, the second spring piece 32, the third spring piece 33 and the mass block.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1. A three-way frequency-adjustable vibration damper for a conveying pipe is characterized by comprising a clamp capable of being fixed outside the conveying pipe and a plurality of spring pieces fixed through the clamp; the mass block is arranged outside the spring piece, one end of the spring piece is fixed with the clamp, the other end of the spring piece extends along the radial direction of the conveying pipe, the spring piece is divided into a first spring piece which is vertical to the axial direction of the conveying pipe, a second spring piece and a third spring piece which are vertical to the first spring piece respectively, and the second spring piece is vertical to the third spring piece.
2. The three-way tunable vibration damping device for a transmission pipe of claim 1 wherein said first, second and third spring strips are used in pairs, the two spring strips used in pairs being symmetrically disposed about a central axis of the transmission pipe.
3. The three-way adjustable frequency vibration damping device for a conveying pipe according to claim 2, wherein the number of the first spring plate, the second spring plate and the third spring plate is two, and the plurality of spring plates are uniformly distributed along the outer circumferential surface of the conveying pipe.
4. The three-way adjustable frequency vibration damping device for a conveying pipe according to claim 1, wherein a mass is sleeved outside the spring plate, and the mass can slide and be fixed along the extending direction of the spring plate.
5. A three-way tunable vibration damping device for a transmission pipe as claimed in claim 1 wherein said spring leaf is configured to: the vibration of the spring piece in the direction perpendicular to the vibration direction can be attenuated.
6. The three-way tunable vibration damping device for a transmission pipe of claim 1 wherein said clamp has an annular clamping surface thereon adapted to engage the outer circumferential side of the transmission pipe to transmit vibrations.
7. The three-way frequency-adjustable vibration damping device for a conveying pipe according to claim 4, wherein the mass block is provided with a through groove penetrating through the mass block, the through groove is used for penetrating through the spring plate, the side wall of the mass block is provided with a bolt hole, the bolt hole penetrates through the outer side surface of the mass block and the inner wall surface of the through groove, and a puller bolt is arranged in the bolt hole.
8. The three-way frequency-adjustable vibration damping device for a conveying pipe according to claim 1, wherein the clamp is of a hoop structure, the clamp comprises a first hoop and a second hoop, and the first hoop and the second hoop are detachably fixed.
9. A pipeline conveying system capable of realizing three-way frequency modulation vibration damping, which is characterized by comprising a conveying pipe, wherein the three-way frequency modulation vibration damping device for the conveying pipe is arranged outside the conveying pipe, and the three-way frequency modulation vibration damping device for the conveying pipe is claimed in any one of claims 1 to 8.
10. A method of damping vibration in a transmission pipe using a three-way variable frequency damping device for a transmission pipe according to any one of claims 1 to 8, comprising the steps of:
according to the vibration frequency to be suppressed, an adaptive spring piece is arranged outside the clamp, and a mass block is fixed at a set position outside the spring piece;
fixing the clamp outside the conveying pipe;
when the conveying pipe vibrates, the vibration in any direction in the conveying pipe can be decomposed into three directions of vibration perpendicular to the first spring piece, the second spring piece and the third spring piece respectively;
the vibration in three directions is absorbed and suppressed by the vibration absorbing elements consisting of the first spring piece, the second spring piece, the third spring piece and the mass block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011549052.6A CN112664746A (en) | 2020-12-24 | 2020-12-24 | Three-way frequency-adjustable vibration reduction device for conveying pipe, conveying system and method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011549052.6A CN112664746A (en) | 2020-12-24 | 2020-12-24 | Three-way frequency-adjustable vibration reduction device for conveying pipe, conveying system and method |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321275A (en) * | 2021-12-23 | 2022-04-12 | 苏州东菱智能减振降噪技术有限公司 | Multi freedom vibration subducts device |
| CN114370532A (en) * | 2022-01-11 | 2022-04-19 | 福州大学 | Variable mass dynamic vibration absorber suitable for high temperature pipeline and assembly method |
| CN114838233A (en) * | 2022-05-12 | 2022-08-02 | 西北工业大学 | An annular dynamic vibration absorbing device applied to high-pressure pipelines |
| CN115789155A (en) * | 2022-10-09 | 2023-03-14 | 中国船舶重工集团公司第七一九研究所 | An online frequency modulation pipeline and shafting dynamic vibration absorbing device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576356A (en) * | 1983-02-03 | 1986-03-18 | Kucera Richard J | Pipe-vibration reducer |
| CN87100111A (en) * | 1987-10-09 | 1988-08-10 | 日本钢管株式会社 | Power Vibration Eliminator (Suction) |
| US4852848A (en) * | 1987-05-01 | 1989-08-01 | Kucera Richard J | Pipe vibration reducer |
| CN2783284Y (en) * | 2004-12-28 | 2006-05-24 | 周瑶琪 | Three-component optical vibration measurer |
| CN204201363U (en) * | 2014-10-21 | 2015-03-11 | 南京航空航天大学 | Frequency-adjustable formula pipeline dynamic vibration absorber |
| CN205001759U (en) * | 2015-08-24 | 2016-01-27 | 宝钢集团新疆八一钢铁有限公司 | Coal gas pipeline junction seal gasket adjusting device |
| CN206290837U (en) * | 2016-11-01 | 2017-06-30 | 中国船舶重工集团公司第七一九研究所 | A kind of pipe-line system vibration damping support device |
| CN108425986A (en) * | 2018-04-17 | 2018-08-21 | 中铁大桥科学研究院有限公司 | Drum type brake electric eddy-current damping device, damping adjusting method and bridge vibration-proof structure |
| US20200217434A1 (en) * | 2019-01-03 | 2020-07-09 | The Boeing Company | Adjustable Clamp Systems and Methods |
-
2020
- 2020-12-24 CN CN202011549052.6A patent/CN112664746A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4576356A (en) * | 1983-02-03 | 1986-03-18 | Kucera Richard J | Pipe-vibration reducer |
| US4852848A (en) * | 1987-05-01 | 1989-08-01 | Kucera Richard J | Pipe vibration reducer |
| CN87100111A (en) * | 1987-10-09 | 1988-08-10 | 日本钢管株式会社 | Power Vibration Eliminator (Suction) |
| CN2783284Y (en) * | 2004-12-28 | 2006-05-24 | 周瑶琪 | Three-component optical vibration measurer |
| CN204201363U (en) * | 2014-10-21 | 2015-03-11 | 南京航空航天大学 | Frequency-adjustable formula pipeline dynamic vibration absorber |
| CN205001759U (en) * | 2015-08-24 | 2016-01-27 | 宝钢集团新疆八一钢铁有限公司 | Coal gas pipeline junction seal gasket adjusting device |
| CN206290837U (en) * | 2016-11-01 | 2017-06-30 | 中国船舶重工集团公司第七一九研究所 | A kind of pipe-line system vibration damping support device |
| CN108425986A (en) * | 2018-04-17 | 2018-08-21 | 中铁大桥科学研究院有限公司 | Drum type brake electric eddy-current damping device, damping adjusting method and bridge vibration-proof structure |
| US20200217434A1 (en) * | 2019-01-03 | 2020-07-09 | The Boeing Company | Adjustable Clamp Systems and Methods |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114321275A (en) * | 2021-12-23 | 2022-04-12 | 苏州东菱智能减振降噪技术有限公司 | Multi freedom vibration subducts device |
| CN114370532A (en) * | 2022-01-11 | 2022-04-19 | 福州大学 | Variable mass dynamic vibration absorber suitable for high temperature pipeline and assembly method |
| CN114838233A (en) * | 2022-05-12 | 2022-08-02 | 西北工业大学 | An annular dynamic vibration absorbing device applied to high-pressure pipelines |
| CN115789155A (en) * | 2022-10-09 | 2023-03-14 | 中国船舶重工集团公司第七一九研究所 | An online frequency modulation pipeline and shafting dynamic vibration absorbing device |
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