CN103791167B - The suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise - Google Patents
The suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise Download PDFInfo
- Publication number
- CN103791167B CN103791167B CN201410025558.5A CN201410025558A CN103791167B CN 103791167 B CN103791167 B CN 103791167B CN 201410025558 A CN201410025558 A CN 201410025558A CN 103791167 B CN103791167 B CN 103791167B
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- pipeline
- suspension bracket
- draw
- external member
- groove
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- Expired - Fee Related
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- 239000000725 suspension Substances 0.000 title claims abstract description 34
- 230000001629 suppression Effects 0.000 title claims abstract description 14
- 239000000758 substrate Substances 0.000 claims abstract description 19
- 239000002184 metal Substances 0.000 claims description 29
- 229910052751 metal Inorganic materials 0.000 claims description 29
- 238000005452 bending Methods 0.000 claims description 13
- 238000004080 punching Methods 0.000 claims description 10
- 239000007769 metal material Substances 0.000 claims description 6
- 239000000696 magnetic material Substances 0.000 claims description 3
- 238000010079 rubber tapping Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 229910000838 Al alloy Inorganic materials 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 238000012545 processing Methods 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 230000007797 corrosion Effects 0.000 description 2
- 238000005260 corrosion Methods 0.000 description 2
- 238000013016 damping Methods 0.000 description 2
- 239000011810 insulating material Substances 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 229910000639 Spring steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000002657 fibrous material Substances 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000003292 glue Substances 0.000 description 1
- 230000000977 initiatory effect Effects 0.000 description 1
- 230000010354 integration Effects 0.000 description 1
- 238000002955 isolation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004663 powder metallurgy Methods 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000010349 pulsation Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000003584 silencer Effects 0.000 description 1
- 238000005245 sintering Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Classifications
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- 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 members engaging the pipe, cable or protective tubing
- F16L3/11—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 members engaging the pipe, cable or protective tubing and hanging from a pendant
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- 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
-
- 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
-
- 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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/033—Noise absorbers
- F16L55/035—Noise absorbers in the form of specially adapted hangers or supports
Landscapes
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Supports For Pipes And Cables (AREA)
- Vibration Prevention Devices (AREA)
Abstract
The suspension bracket external member of a kind of adjustable suppression naval vessel pipeline vibration noise, comprise adjustable pipeline suspension bracket and clamp device, described suspension bracket is provided with substrate and adjusting bolt, described substrate is fixedly connected with hull, described adjusting bolt comprises the bolt part on top and the spherical part of bottom, and described bolt part is provided with outside thread; Described substrate is provided with the screw coordinated with described bolt part, and described adjusting bolt is arranged in described screw; The spherical part of described adjusting bolt embeds in an open-topped spherical draw-in groove, and the diameter of described opening or width are less than the diameter of described spherical part, and described spherical clip groove bottom is fixedly connected on the top of pipeline outer wall or clamp device.Pipeline suspension bracket Placement of the present invention is adjustable flexibly, and antivibration is effective, is applicable to the use of ductwork building.Meanwhile, the suspension bracket external member based on this suspension bracket discloses pipe clamp structure supporting with it, has the advantage suppressing pipeline vibration noise further, and easy to install.
Description
Technical field
The present invention relates to pipeline noise reduction technology field, naval vessel, be specially the suspension bracket external member of a kind of adjustable pipeline suspension bracket and the adjustable suppression naval vessel pipeline vibration noise based on this suspension bracket.
Background technique
There is very complicated line arrangement inside, naval vessel usually, by pipeline transferring energy stream, flow of momentum or mass flow, completes its specific function.But meanwhile, pipeline also creates vibration and noise.These vibrations and noise mainly comprise two aspects: be on the one hand, and the vibration & noise produced when equipment works by pipe-line system by the machinery on naval vessel is passed to ship structure; Be on the other hand, because the work of pumping system is inherently intermittent, therefore inevitably there is tube wall vibration and the noise of fluid pressure flow pulsation initiation in pipe-line system, the quiet travelling comfort of these vibration & noise on the stealth of naval vessels and ship for civil use causes very important impact.Therefore in the propagation path of vibration & noise, necessary quarantine measures need be taked to stop its transfer.
Due to the restriction of various objective condition, want significantly to reduce vibration & noise very difficult.Therefore prior art often uses for reference the measure in some engineerings, such as adopt elasticity to connect and reduce vibration; Utilize damping material attenuation vibration energy; Fix a silencer, wave filter etc. cuts down noise etc.And at present, the pipeline suspension bracket on naval vessel is be fixed on hull substantially, can not be elevated needed for reality, and the device of vibration and noise reducing aspect is fewer, the still Shortcomings had, therefore the problems demand that pipeline carries out vibration and noise reducing is improved further.
Summary of the invention
Technical purpose of the present invention overcomes problems of the prior art and defect, provides a kind of adjustable pipeline suspension bracket and comprise the suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise of this suspension bracket, have advantage easy to install.
Technological scheme of the present invention is:
A kind of adjustable pipeline suspension bracket, be provided with substrate and adjusting bolt, described substrate is fixedly connected with hull, it is characterized in that:
Described adjusting bolt comprises the bolt part on top and the spherical part of bottom, and described bolt part is provided with outside thread; Described substrate is provided with the screw coordinated with described bolt part, and described adjusting bolt is arranged in described screw;
The spherical part of described adjusting bolt embeds in an open-topped spherical draw-in groove, and the diameter of described opening or width are less than the diameter of described spherical part, and described spherical clip groove bottom is fixedly connected on the top of pipeline outer wall or clamp device.As preferably, described spherical draw-in groove can adopt metallic material to make.
When suspension bracket of the present invention uses, can for the height of pipeline by screwing adjusting bolt, or the distance between pipeline and hull, regulate, be applicable to the pipeline of different heights.And adjusting bolt is flexibly connected by spherical part and spherical draw-in groove, when vibration occurs for pipeline or hull, the situation avoiding suspension bracket and the generation damage distortion of pipe connection portion position occurs.
A suspension bracket external member for adjustable suppression naval vessel pipeline vibration noise, comprises above-mentioned adjustable pipeline suspension bracket, it is characterized in that:
Also be provided with clamp device, described clamp device comprises one group of semicircular ring metal clamping ring relatively fixed in pipeline periphery, the end of described semicircular ring metal clamping ring is provided with bending lug, and relative bending lug to be locked connection by locking device by two halves annulus metal clip circle;
Adjusting bolt be each side provided with a draw-in groove track, the top of draw-in groove track is connected with described substrate, and described draw-in groove track has the vertical groove towards pipeline tapping.The bending lug of described metal clamping ring is stuck in the draw-in groove orbital groove of respective side, and after adjusting bolt is screwed, namely the bending lug of metal clamping ring moves up and down along groove.Generally, adjusting bolt is provided with the length that externally threaded described bolt part length should be not more than the vertical groove of described draw-in groove track.
Further, described draw-in groove track top is connected with described substrate by vibration isolator.
Further, described draw-in groove track entirety or notch board are that magnetic material is made, and described metal clamping ring is that the metallic material that can be attracted magnetically is made, and making the bending lug of metal clamping ring when there is slight vibration, can not depart from easily in draw-in groove track.
Concrete, described clamp device is outside from tube wall, comprises elastomeric layer, micropunch flaggy and described metal clamping ring successively.
Described elastomeric layer is made up of one or more in spring vibration-isolator or perforation vibration isolator, and described spring vibration-isolator or perforation vibration isolator are arranged on the outer wall of pipeline; Described micropunch flaggy comprises the perforation plate body with multiple inside and outside through micropores, and the diameter of described micropore is not more than 1mm.
Further, described micropunch flaggy also comprises the cavity layer being positioned at the external side of perforated plate, and described metal clamping ring fixes on the chamber wall housing forming described cavity layer.
As preferably, the thickness of described cavity layer is 30 ~ 200mm.
As preferably, the punching rate of described perforation plate body controls 0.5% ~ 5%.
Further technological scheme also comprises:
The perforation plate body of more than one deck is also provided with in described cavity layer, cavity layer is separated into some concentric unit air cavity layer, the dark ratio of internal layer unit air cavity layer and the chamber of outer unit air cavity layer be adjacent is not more than 1:3, and the punching rate of internal layer perforation plate body is greater than the punching rate of outer perforation plate body.
Beneficial effect of the present invention:
1) hanger structure of the present invention is simple and easy, and low cost of manufacture is easy to use, has the advantage of antivibration, is particularly useful for adjustment and the lifting of naval vessel pipeline;
2) clamp device antivibration of the present invention, acoustically effective are good, and absorption band is wide, effectively improves the problem of pipeline vibration and noise, avoids the damage of hoisting structure; And the sound insulating material that the sound absorption cavity of clamp device often adopts without the need to filling prior art, as porous fiber material etc., not water funk and moisture, clean, pollution-free, high temperature resistant, corrosion resistance is stronger, high velocity air can be born impact, and avoid sound insulating material and need fire prevention, the anti-problem such as mouldy;
3) each assembly of suspension bracket external member of the present invention is with the use of effective, except supporting pipeline, can the active force of balance line system vibrating noise further, and restriction conduit displacement and absorb vibration, and be easy to manufacture, install and maintenance.
Accompanying drawing explanation
Fig. 1 is the structural representation of the embodiment of the present invention;
Fig. 2 is the deployed configuration schematic diagram of microperforated panel;
Fig. 3 is the structure sectional view in Fig. 1 bolt and A portion, substrate joint;
Fig. 4 is the cross-sectional plan view in Fig. 1 metal clamping ring two ends and magnetic card groove track relative position B portion;
Fig. 5 is the structure for amplifying schematic diagram in Fig. 1 spherical draw-in groove C portion;
In upper figure, 1, pipeline, 2, spring vibration-isolator, 3, vibration isolator, 4, perforation plate body, 5, cavity layer, 6, metal clamping ring, 7, bolt, 8, nut, 9, draw-in groove track, 10, vibration isolator, 11, adjusting bolt, 12, spherical draw-in groove.
Embodiment
In order to illustrate technique effect of the present invention, below by specific embodiments and the drawings, the present invention is described further.
One as shown in Fig. 1, Fig. 3, Fig. 4, Fig. 5 is adjustable pipeline suspension bracket, comprises following composition component:
1) substrate;
Described substrate and hull are integrated, or are fixedly connected with hull rigidity.
2) adjusting bolt 11;
Described adjusting bolt comprises the bolt part on top and the spherical part of bottom, and described bolt part is provided with outside thread; Described substrate processes the female screw of tool coordinated with described bolt part by tapping, described adjusting bolt is arranged in described screw, is fixed on substrate.
3) spherical draw-in groove 12;
Described spherical draw-in groove 12 top is provided with opening, and bottom is fixedly connected on pipeline 1 outer wall or clamp device top by modes such as welding.
The spherical part of described adjusting bolt embeds in described spherical draw-in groove 12, and the joint of spherical part and bolt part is positioned at described opening.The opening diameter of spherical draw-in groove 12 or width are less than the diameter of described spherical part, spherical part can not be departed from spherical draw-in groove 12, be greater than the body of rod diameter of spherical part and bolt part joint bolt part, make bolt part follow spheroid can rotate among a small circle.Described spherical draw-in groove 12 can adopt metallic material to make, for reducing the friction of spherical draw-in groove 12 and adjusting bolt spherical part, and can floodlubrication oil.
When above-mentioned suspension bracket is applied on naval vessel pipeline, can coordinates with suppressing the clamp device of pipeline vibration noise, using as external member.
As shown in Figure 1 and Figure 2, the suspension bracket external member of a kind of adjustable suppression naval vessel pipeline vibration noise, comprises foregoing adjustable pipeline suspension bracket and a clamp device.
Described clamp device comprises one group of semicircular ring metal clamping ring 6 relatively fixed in pipeline periphery, the end of described semicircular ring metal clamping ring 6 is provided with bending lug, described bending lug has screw or through hole, relative bending lug to be locked by bolt 7 and nut 8 and to be connected by two halves annulus metal clip circle 6, and two halves annulus metal clip circle 6 is fixedly clamped suppressing the Rotating fields of pipeline vibration noise on pipeline 1 outer wall.
Described adjusting bolt be each side provided with a draw-in groove track 9, the top of draw-in groove track 9 is connected by substrate elasticity described in vibration isolator 10.For the vibration isolator be connected with draw-in groove track, should ensure that the maximum difference of its issuable deformation values is not more than 20% of average deformation value under this vibration isolator rated load, and left and right sides vibration isolator 10 rigidity should be as far as possible equal as far as possible.
Described draw-in groove track 9 has the vertical groove towards pipeline 1 opening, the bending lug of described metal clamping ring 6 is stuck in the vertical groove of the draw-in groove track 9 of respective side, and adjusting bolt is provided with the length that externally threaded position (bolt part) length should be not more than the vertical groove of described draw-in groove track 9, avoid because of operate miss, make pipe clamp bend lug and depart from draw-in groove track 9.For preventing this kind of problem, the side plate of at least vertical groove of described draw-in groove track can adopt magnetic material to make, and other position can adopt metallic material.Corresponding, described metal clamping ring 6 is that the metallic material that can be attracted magnetically is made, and the bending lug of metal clamping ring 6 is attracted in draw-in groove orbital groove, moves up and down.
The Rotating fields of described clamp device is outside from tube wall, is followed successively by elastomeric layer, micropunch flaggy and described metal clamping ring 6.
Described elastomeric layer is made up of one or more in spring vibration-isolator 2 or vibration isolator 3, and described spring vibration-isolator 2 or vibration isolator 3 are arranged on the outer wall of pipeline 1.A kind of preferred implementation as shown in Figure 1, often organize vibration isolator and comprise four spring vibration isolation pads 2, often organize vibration isolator and comprise four rubber or excellent power glue vibration isolator 3, vibration isolator group and the alignment of vibration isolator group are alternately around piping layout, or 45 degree, interval is alternately around piping layout.Described spring vibration-isolator 2 adopts plain cylindrical form metal coil spring, or mixes external damping material and inert block combinationally uses, and as at Spring Steel Wire outpacking rubber, under spring, lays rubber pad, felt etc.Described vibration isolator 3 preferably adopts perforation vibration isolator, namely has the vibration isolator of up/down perforation through hole, is placed on after on pipeline, is inside and outside through.
Described micropunch flaggy comprises the perforation plate body 4 and cavity layer 5 with multiple inside and outside through micropore, and metal clamping ring 6 fixes on the chamber wall housing forming described cavity layer 5.The diameter of the micropore on perforation plate body 4 is not more than 1mm.
Described microperforated panel also can adopt other mode of execution, as only arrange perforation plate body 4 or as described in be also provided with the perforation plate body of more than one deck in cavity layer 5, cavity layer 5 is separated into some concentric unit air cavity layer, the dark ratio of internal layer unit air cavity layer and the chamber of outer unit air cavity layer be adjacent is not more than 1:3, and the punching rate of internal layer perforation plate body should be greater than the punching rate of outer perforation plate body.
The punching rate general control of described perforation plate body is 0.5% ~ 5%, micropunch layer as shown in Figure 2 launches in schematic diagram, micropore on perforation plate body 4 adopts manhole, regular array on plate body, hole pitch is in machine and transverse direction all equal, apertured spacing is b, and aperture is d, then the punching rate of plate body 4 of boring a hole
q controls 0.5% ~ 5%.Perforation plate body 4 thickness of slab be set to 3 ~ 5mm within, preferred scheme is the thickness being less than 1mm.
Described micropunch flaggy can adopt the aluminium alloy plate of inner hollow to be made into integration.The processing of micropunch can adopt multiple method, comprise and processing by laser technique, form micropunch by powder metallurgy, method such as sintering silk screen, electrograving corrosion etc., there is not very large difficulty in microperforated panel soundabsorbing construction, make it be convenient to practical application in actual processing.For embodiment one, aluminium alloy plate as shown in Figure 2 and Figure 3, top thickness of slab is t, wears micropore, and it is highly the cavity of D that bottom is provided with, and cavity floor is the plate face as chamber outer wall.After described aluminium alloy plate is surrounded, make described micropunch flaggy, be fixedly clamped by metal clamping ring 6.
And the thickness of described cavity layer 5 is generally at 30 ~ 200mm.For the acoustical vibration of high frequency, intermediate frequency and low frequency, be further divided into 30 ~ 50mm, 80 ~ 120mm, 150 ~ 200mm tri-kinds, specifically can select according to on-the-spot pipeline situation.
More than show and describe basic principle of the present invention, major character and advantage of the present invention.The technician of the industry should understand, the present invention is not restricted to the described embodiments, what describe in above-described embodiment and specification just illustrates principle of the present invention, and without departing from the spirit and scope of the present invention, the present invention also has various changes and modifications.Application claims protection domain is defined by appending claims, specification and equivalent thereof.
Claims (7)
1. a suspension bracket external member for adjustable suppression naval vessel pipeline vibration noise, comprises adjustable pipeline suspension bracket and clamp device;
Described adjustable pipeline suspension bracket is provided with substrate and adjusting bolt, and described substrate is fixedly connected with hull, and described adjusting bolt comprises the bolt part on top and the spherical part of bottom, and described bolt part is provided with outside thread; Described substrate is provided with the screw coordinated with described bolt part, and described adjusting bolt is arranged in described screw; The spherical part of described adjusting bolt embeds in an open-topped spherical draw-in groove, and the diameter of described opening or width are less than the diameter of described spherical part, and described spherical clip groove bottom is fixedly connected on the top of pipeline outer wall or clamp device;
Described clamp device comprises one group of semicircular ring metal clamping ring relatively fixed in pipeline periphery, and the end of described semicircular ring metal clamping ring is provided with bending lug, and relative bending lug to be locked connection by locking device by two halves annulus metal clip circle; Adjusting bolt be each side provided with a draw-in groove track, the top of draw-in groove track is connected with described substrate, and described draw-in groove track has the vertical groove towards pipeline tapping; The bending lug of described metal clamping ring is stuck in the vertical groove of draw-in groove track of respective side, can move up and down along groove; Described draw-in groove track entirety or notch board are magnetic material, and described metal clamping ring is the metallic material that can be attracted magnetically;
Described clamp device is outside from tube wall, comprises elastomeric layer, micropunch flaggy and described metal clamping ring successively; Described elastomeric layer is made up of one or more in spring vibration-isolator or perforation vibration isolator, and described spring vibration-isolator or vibration isolator are arranged on the outer wall of pipeline; Described micropunch flaggy comprises the perforation plate body with multiple inside and outside through micropores, and the diameter of described micropore is not more than 1mm.
2. the suspension bracket external member of adjustable suppression naval vessel according to claim 1 pipeline vibration noise, is characterized in that: described adjusting bolt is provided with the length that externally threaded described bolt part length should be not more than the vertical groove of described draw-in groove track.
3. the suspension bracket external member of adjustable suppression naval vessel according to claim 1 pipeline vibration noise, is characterized in that:
Described draw-in groove track top is connected with described substrate by vibration isolator.
4. the suspension bracket external member of the adjustable suppression naval vessel pipeline vibration noise according to claim 1,2 or 3, is characterized in that:
Described micropunch flaggy also comprises the cavity layer being positioned at the external side of perforated plate, and described metal clamping ring fixes on the chamber wall housing forming described cavity layer.
5. the suspension bracket external member of adjustable suppression naval vessel according to claim 4 pipeline vibration noise, is characterized in that:
The perforation plate body of more than one deck is also provided with in described cavity layer, cavity layer is separated into some concentric unit air cavity layer, the dark ratio of internal layer unit air cavity layer and the chamber of outer unit air cavity layer be adjacent is not more than 1:3, and the punching rate of internal layer perforation plate body is greater than the punching rate of outer perforation plate body.
6. the suspension bracket external member of adjustable suppression naval vessel according to claim 4 pipeline vibration noise, is characterized in that:
The thickness of described cavity layer is 30 ~ 200mm.
7. the suspension bracket external member of the adjustable suppression naval vessel pipeline vibration noise according to claim 1,2 or 3, is characterized in that:
The punching rate of described perforation plate body is 0.5% ~ 5%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025558.5A CN103791167B (en) | 2014-01-20 | 2014-01-20 | The suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410025558.5A CN103791167B (en) | 2014-01-20 | 2014-01-20 | The suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103791167A CN103791167A (en) | 2014-05-14 |
| CN103791167B true CN103791167B (en) | 2015-11-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410025558.5A Expired - Fee Related CN103791167B (en) | 2014-01-20 | 2014-01-20 | The suspension bracket external member of adjustable suppression naval vessel pipeline vibration noise |
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| CN (1) | CN103791167B (en) |
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| US1966899A (en) * | 1931-12-17 | 1934-07-17 | Grabler Mfg Company | Pipe hanger |
| US2339565A (en) * | 1943-03-10 | 1944-01-18 | Abraham G Goldberg | Pipe hanger |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN103791167A (en) | 2014-05-14 |
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