CN109373054B - Self-limiting adjustable low-rigidity pipeline elastic support - Google Patents
Self-limiting adjustable low-rigidity pipeline elastic support Download PDFInfo
- Publication number
- CN109373054B CN109373054B CN201811433369.6A CN201811433369A CN109373054B CN 109373054 B CN109373054 B CN 109373054B CN 201811433369 A CN201811433369 A CN 201811433369A CN 109373054 B CN109373054 B CN 109373054B
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- China
- Prior art keywords
- pipeline
- elastic support
- elastic
- adjustable
- height
- Prior art date
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- 238000009434 installation Methods 0.000 claims abstract description 44
- 229910052755 nonmetal Inorganic materials 0.000 claims abstract description 24
- 230000000712 assembly Effects 0.000 claims abstract description 12
- 238000000429 assembly Methods 0.000 claims abstract description 12
- 238000013016 damping Methods 0.000 claims abstract description 8
- 238000010008 shearing Methods 0.000 claims abstract description 6
- 238000005086 pumping Methods 0.000 claims description 5
- 230000001052 transient effect Effects 0.000 claims description 4
- 238000002955 isolation Methods 0.000 abstract description 12
- 239000013013 elastic material Substances 0.000 abstract description 2
- 230000000694 effects Effects 0.000 description 7
- 230000002457 bidirectional effect Effects 0.000 description 5
- 230000007547 defect Effects 0.000 description 3
- 230000001066 destructive effect Effects 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000004073 vulcanization Methods 0.000 description 2
- 239000006096 absorbing agent Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000926 separation method Methods 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/08—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing
- F16L3/10—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets substantially surrounding the pipe, cable or protective tubing divided, i.e. with two or more members engaging the pipe, cable or protective tubing
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L3/00—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets
- F16L3/16—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe
- F16L3/20—Supports for pipes, cables or protective tubing, e.g. hangers, holders, clamps, cleats, clips, brackets with special provision allowing movement of the pipe allowing movement in transverse direction
Abstract
The invention relates to a self-limiting adjustable low-rigidity pipeline elastic support, which comprises a pipeline installation assembly and a nonmetal thickness adjusting sheet, wherein the pipeline installation assembly is formed by installing two pipeline installation brackets, a semicircular pipeline clamping ring and a plurality of nonmetal vibration reduction elastic members through bolts or integrally forming a die; a semicircular pipeline clamping ring is fixedly connected between the two pipeline mounting brackets through a plurality of nonmetallic vibration reduction elastic components; the inner surface of the pipeline mounting bracket is stuck with a nonmetal anti-collision sheet, and the inner surface of the semicircular pipeline clamping ring is stuck with a nonmetal thickness adjusting sheet; the two pipeline installation components fix the pipeline between the two semicircular pipeline clamping rings through bolts to form a pipeline elastic support; the pipeline elastic support is arranged on the two bases through four height-adjustable bolt assemblies. The invention utilizes the characteristic of low shearing rigidity of the nonmetallic vibration-damping elastic material and the height-adjustable bolt component, and mainly solves the problems of broadband vibration isolation of pipelines and height deviation generated during pipeline installation.
Description
Technical Field
The invention relates to a ship pipeline vibration noise control technology, in particular to a pipeline elastic support which can be used for vibration isolation of a ship pipeline.
Background
In view of the increasing importance of marine environmental protection, the control of ship vibration noise is widely focused. After the vibration transmitted by the mechanical equipment along the machine leg is effectively isolated, the vibration transmitted by the pipeline is gradually highlighted, and corresponding control measures are required. At present, in pipeline vibration noise control, a method of combining a pipeline flexible connecting pipe with an elastic support is mainly adopted to effectively isolate transmission of system pipeline vibration, wherein the installation of a high-performance pipeline elastic support is an effective measure for reducing transmission of pipeline vibration.
Aiming at the characteristics of a ship pipeline system and the vibration noise control requirement, the pipeline elastic support with successful design has the following capability: firstly, the vibration isolation effect is good in a wider frequency range, particularly in a middle-low frequency range, so that the vibration isolation elastic component of the pipeline elastic support has low rigidity; the elastic support of the pipeline has a height adjusting function, can compensate the height deviation generated by installation adjustment of liquid filling, pumping pressure and the like of the pipeline, and avoids larger additional destructive force on the flexible connecting pipe of the pipeline due to the height deviation; thirdly, the elastic support of the pipeline has limit capability of avoiding large deformation of the pipeline so as to ensure that the deformation of the pipeline is controlled within a safe range when the ship sails and swings and encounters external impact; finally, in view of the factors of numerous ship devices, narrow cabin space, compact pipeline arrangement and the like, the pipeline elastic support is designed to be compact in structure and convenient to install, and pipelines are tidily and attractive to arrange.
In recent years, industry has proposed various technical solutions to the elastic support of pipes. Chinese patent 201721155680.X proposes a wide range height adjustable pipeline supporting device, which comprises upper and lower pad plates, a pipeline supporting and hanging installation assembly and a screw adjusting mechanism; the pipeline supporting and hanging installation assembly comprises a clamp rubber layer, a clamp, a cushion block, bolts, nuts and gaskets, wherein the clamp and the clamp layer are vulcanized into a whole, and grooves are uniformly distributed in the axial direction of the gasket; the pipeline supporting and hanging installation assembly is fixedly installed above the upper base plate and is used for fixing a pipeline; the lower backing plate is fixedly connected with the base through bolts and nuts, the screw adjusting mechanism is connected between the upper backing plate and the lower backing plate, and the distance between the upper backing plate and the lower backing plate is changed through the screw of the positive and negative rotation screw adjusting mechanism, so that the free adjustment of the height of the pipeline supporting device is realized; the device compresses the rubber gasket and the cushion block to the pipeline through the clamp and the upper cushion plate for the bolts, the rigidity of the rubber gasket and the cushion block is higher, and the vibration isolation effect is poorer; due to the creep property of rubber, the pressing force of the rubber gasket and the cushion block on the pipeline is gradually reduced along with time, so that the pipeline is not easy to be reliably fixed.
The Chinese patent 201620907406.2 proposes an adjustable elastic pipeline supporting crane with a limiting function, a pipeline fixing component of the supporting crane is identical to that of the Chinese patent 201721155680.X, the height adjustment is realized through a bidirectional threaded sleeve component, and an elastic limiting component is arranged below the bidirectional threaded sleeve component, so that the defect of vibration isolation effect of the pipeline elastic fixing component is overcome. Chinese patent 201420399482.8 discloses an adjustable elastic pipe clamp, which is characterized in that a rubber elastic layer is wrapped on a pipeline through two omega-shaped clamps, the height adjustment is realized by adopting a bidirectional threaded sleeve assembly similar to that of Chinese patent 201620907406.2, one end of the bidirectional threaded sleeve assembly is connected with the omega-shaped elastic clamp, and the other end of the bidirectional threaded sleeve assembly is connected with a shock absorber. The height adjustment technical schemes proposed by the two patents are realized by two-way threaded sleeve assemblies, the transverse rigidity of the installed pipeline is poor, and the defect that the pipeline pressing force caused by rubber creep is gradually reduced along with time also exists.
Chinese patent application 201310583295.5 discloses an elastic support device for pipeline vibration isolation, and the device is through two inboard "omega" shape clamp fixed line that lays the vibration isolation layer to with lower clamp vulcanization embedding in an elastic rubber component, have vibration isolation effect good, advantage such as simple structure, but to the pipeline of different specifications, need set up corresponding mould vulcanization production, and the device does not have self height adjustment function, need repeated dismouting many times when pipeline installation and debugging.
Disclosure of Invention
Aiming at the defects in the prior art, the invention aims to provide the self-limiting adjustable low-rigidity pipeline elastic support, which mainly solves the problems of wider frequency range, particularly the vibration isolation effect of medium and low frequency bands and the problem of high deviation during pipeline installation and debugging by utilizing the characteristic of low shearing rigidity of a nonmetal vibration damping elastic material and a specially designed height-adjustable bolt assembly, and simultaneously structurally ensures that the pipeline is prevented from generating larger deformation when a ship sails and swings and encounters external impact.
In order to achieve the aim of the invention, the invention is realized by the following technical scheme:
the self-limiting adjustable low-rigidity pipeline elastic support comprises a pipeline installation assembly, a nonmetal thickness adjusting sheet, bolts, a height-adjustable bolt assembly and a base, wherein the pipeline installation assembly is formed by installing two pipeline installation brackets, a semicircular pipeline clamping ring and a plurality of nonmetal vibration reduction elastic components through bolts or integrally forming a die; a semicircular pipeline clamping ring is fixedly connected between the two pipeline mounting brackets through a plurality of nonmetallic vibration reduction elastic components; the inner surface of the pipeline mounting bracket is stuck with a nonmetal anti-collision sheet, and the inner surface of the semicircular pipeline clamping ring is stuck with a nonmetal thickness adjusting sheet; the two pipeline installation components fix the pipeline between the two semicircular pipeline clamping rings through bolts to form a pipeline elastic support; the pipeline elastic support is arranged on the two bases through four height-adjustable bolt assemblies.
Furthermore, the height-adjustable bolt assembly consists of a fastening bolt, an adjusting bolt and a locking nut, and the lower pipeline installation assembly can be lifted or lowered by adjusting the four height-adjustable bolt assemblies to compensate the height deviation generated by pipeline filling and pumping pressure.
Further, the nonmetallic vibration damping elastic component bears shearing stress in the radial direction of the pipeline and has the characteristic of low rigidity.
Further, the circular radius formed by the two pipeline mounting brackets is larger than the circular radius formed by the two semicircular pipeline snap rings, so that the nonmetal vibration reduction elastic component can be ensured to be fully deformed, and the pipeline transient large deformation has a limiting function.
Furthermore, the nonmetal thickness adjusting sheet adopts adjusting sheets with different thicknesses, so that pipelines with the same channel and different wall thicknesses can be tightly fixed.
Further, two side faces of the pipeline mounting support are provided with elliptical holes, the upper end face and the lower end face are provided with connecting through holes, the two pipeline elastic supports are connected in parallel through the upper side face elliptical holes of the pipeline mounting support by bolts, or the pipeline mounting support is connected in series through the upper end face and the lower end face of the pipeline mounting support by the height-adjustable bolt assemblies.
Compared with the prior art, the invention has the following beneficial effects:
firstly, the nonmetal vibration reduction elastic component in the pipeline elastic support bears shearing stress in the radial direction of the pipeline, has low rigidity characteristic, is easy to realize a wider frequency range, and particularly has good vibration isolation effect in a middle-low frequency range; secondly, the height deviation generated by installation adjustment of pipeline filling, pumping pressure and the like can be compensated through the specially designed height-adjustable bolt assembly, so that larger additional destructive force on the pipeline flexible connecting pipe due to the height deviation is avoided; thirdly, the radius of the circle formed by the upper pipeline mounting bracket and the lower pipeline mounting bracket is larger than that of the circle formed by the two semicircular pipeline snap rings, so that the nonmetal vibration reduction elastic component can be ensured to be fully deformed, and the pipeline transient large deformation has a limiting function; fourth, the invention can effectively solve the problem of tight fixation of pipelines with the same channel and different wall thicknesses by adopting the non-metal thickness adjusting sheets with different thicknesses; fifth, the elastic supports of the plurality of separation pipelines can be connected in rows, so that the problem of difficult pipeline arrangement caused by numerous ship equipment and narrow cabin space is solved, and the pipelines can be arranged neatly and beautifully.
Drawings
FIG. 1 is a schematic view of a self-limiting adjustable low stiffness pipeline elastic support structure of the present invention;
FIG. 2 is a schematic view of an upper pipeline installation assembly according to the present invention;
FIG. 3 is a schematic view of a lower pipeline installation assembly according to the present invention;
FIG. 4 is a schematic view of an adjustable height bolt assembly of the present invention;
FIG. 5 is a schematic view of an arrangement of a plurality of flexible supports for a plurality of pipes according to the present invention;
wherein: 1. an upper pipeline installation component, a lower pipeline installation component, a nonmetal thickness adjusting sheet, 4, bolts, 5, a height-adjustable bolt component, 6, a base, 11, an upper pipeline installation bracket, 12, a semicircular pipeline snap ring, 13, a nonmetallic vibration reduction elastic component, 14, a bolt, 15, a nonmetallic anti-collision sheet, 16, an elliptical hole, 21, a lower pipeline mounting bracket, 51, a fastening bolt, 52, an adjusting bolt, 53 and a locking nut.
Detailed Description
The following describes embodiments of the present invention in detail with reference to the accompanying drawings, and the embodiments and specific operation procedures of the present invention are given by this embodiment on the premise of the technical solution of the present invention, but the protection scope of the present invention is not limited to the following embodiments.
As shown in fig. 1 to 5, the self-limiting adjustable low-rigidity pipeline elastic support comprises an upper pipeline installation component 1, a lower pipeline installation component 2, a nonmetal thickness adjusting sheet 3, a bolt 4, a height-adjustable bolt component 5 and a base 6. The upper pipeline installation assembly 1 and the lower pipeline installation assembly 2 have the same structure. The upper pipeline installation assembly 1 and the lower pipeline installation assembly 2 are respectively formed by installing two upper pipeline installation brackets 11, two lower pipeline installation brackets 21, a semicircular pipeline clamping ring 12 and a plurality of nonmetallic vibration damping elastic components 13 through bolts 14 or integrally forming a die; the upper pipe mounting bracket 11 and the lower pipe mounting bracket 21 are identical in structure. A nonmetal thickness adjusting sheet 3 is stuck on the inner surfaces of semicircular pipeline clamping rings 12 of the upper pipeline installation assembly 1 and the lower pipeline installation assembly 2, pipelines are fixed between the upper pipeline installation assembly 1 and the lower pipeline installation assembly 2 through bolts 4, and pipelines with the same passthrough and different wall thicknesses can be tightly fixed by the nonmetal thickness adjusting sheets 3 with different thicknesses; the nonmetal vibration reduction elastic component 13 bears shearing stress in the radial direction of the pipeline, has low rigidity characteristic, and has good vibration isolation effect in a wider frequency range, in particular to a middle-low frequency range; the radius of the circle formed by the upper pipeline mounting bracket 11 and the lower pipeline mounting bracket 21 is larger than that of the circle formed by the two semicircular pipeline clamping rings 12, and the nonmetallic anti-collision sheets 15 are adhered to the surfaces of the upper pipeline mounting bracket 11 and the lower pipeline mounting bracket, so that the nonmetallic vibration-damping elastic members 13 can be ensured to deform sufficiently, and the pipeline transient large deformation has a limiting function; the whole pipeline elastic support is formed by installing an assembled upper pipeline installation assembly 1 and a lower pipeline installation assembly 2 on two bases 6 through four height-adjustable bolt assemblies 5, wherein the height-adjustable bolt assemblies 5 are formed by fastening bolts 51, adjusting bolts 52 and locking nuts 53, and the lower pipeline installation assembly 2 can be lifted or lowered by adjusting the four height-adjustable bolt assemblies, so that the height deviation generated by installation adjustment of pipeline filling, pumping pressure and the like can be compensated, and larger additional destructive force on a pipeline flexible connecting pipe due to the height deviation is avoided.
In the implementation process of the invention, by utilizing the elliptical holes 16 formed on the two side surfaces of the upper pipeline mounting bracket 11 and the lower pipeline mounting bracket 21 in the upper pipeline mounting assembly 1 and the lower pipeline mounting assembly 2, one pipeline elastic support can be connected with the other pipeline elastic support by bolts in parallel, and simultaneously, the assembled upper pipeline mounting assembly 1 and lower pipeline mounting assembly 2 can be connected with the other pipeline elastic support in series by the four height-adjustable bolt assemblies 5 to form a plurality of pipeline elastic supports which are connected in a row, so that the problem of difficult pipeline arrangement caused by numerous ship equipment and narrow cabin space is solved, and the pipeline arrangement is convenient.
Claims (6)
1. The utility model provides a low rigidity pipeline elastic support with adjustable from spacing, includes pipeline installation component, nonmetal thickness adjustment piece (3), bolt (4), adjustable high bolt assembly (5), base (6), its characterized in that: the pipeline installation assembly is formed by installing two pipeline installation brackets, a semicircular pipeline clamping ring (12) and a plurality of nonmetallic vibration damping elastic components (13) through bolts or integrally forming a die; a semicircular pipeline clamping ring (12) is fixedly connected between the two pipeline mounting brackets through a plurality of nonmetallic vibration reduction elastic components (13); the inner surface of the pipeline mounting bracket is stuck with a nonmetal anti-collision sheet (15), and the inner surface of the semicircular pipeline clamping ring (12) is stuck with a nonmetal thickness adjusting sheet (3); the two pipeline installation components fix the pipeline between the two semicircular pipeline clamping rings (12) through bolts to form a pipeline elastic support; the pipeline elastic support is arranged on the two bases (6) through four height-adjustable bolt assemblies (5).
2. The self-limiting adjustable low stiffness pipeline elastic support according to claim 1, wherein: the height-adjustable bolt assembly (5) consists of a fastening bolt (51), an adjusting bolt (52) and a locking nut (53), and the lower pipeline installation assembly (2) can be lifted or lowered by adjusting the four height-adjustable bolt assemblies (5) to compensate the height deviation generated by pipeline filling and pumping pressure.
3. The self-limiting adjustable low stiffness pipeline elastic support according to claim 1, wherein: the nonmetallic vibration damping elastic component (13) bears shearing stress in the radial direction of the pipeline and has the characteristic of low rigidity.
4. The self-limiting adjustable low stiffness pipeline elastic support according to claim 1, wherein: the circular radius formed by the two pipeline mounting brackets is larger than the circular radius formed by the two semicircular pipeline snap rings (12), so that the nonmetal vibration damping elastic component (13) can be guaranteed to deform fully, and the pipeline transient large deformation has a limiting function.
5. The self-limiting adjustable low stiffness pipeline elastic support according to claim 1, wherein: the nonmetal thickness adjusting sheet (3) adopts adjusting sheets with different thicknesses, and can tightly fix pipelines with the same channel and different wall thicknesses.
6. The self-limiting adjustable low stiffness pipeline elastic support according to claim 1, wherein: elliptical holes (16) are formed in two side faces of the pipeline mounting support, connecting through holes are formed in the upper end face and the lower end face of the pipeline mounting support, the two pipeline elastic supports are connected in parallel through the upper side elliptical holes (16) of the pipeline mounting support through bolts, or the pipeline mounting support is connected in series through the upper end face and the lower end face of the pipeline mounting support through the through holes through the height-adjustable bolt assemblies (5).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433369.6A CN109373054B (en) | 2018-11-28 | 2018-11-28 | Self-limiting adjustable low-rigidity pipeline elastic support |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811433369.6A CN109373054B (en) | 2018-11-28 | 2018-11-28 | Self-limiting adjustable low-rigidity pipeline elastic support |
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| CN109373054A CN109373054A (en) | 2019-02-22 |
| CN109373054B true CN109373054B (en) | 2024-03-01 |
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| CN109373054A (en) | 2019-02-22 |
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Address after: 200031 No. 10, Xuhui District, Shanghai, Hengshan Road Applicant after: No. 704 Research Institute of China State Shipbuilding Corp. Address before: 200031 No. 10, Xuhui District, Shanghai, Hengshan Road Applicant before: NO.704 RESEARCH INSTITUTE OF CHINA SHIPBUILDING INDUSTRY Corp. |
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