CN105276327A - Pipeline online damping silencer for hydraulic system - Google Patents
Pipeline online damping silencer for hydraulic system Download PDFInfo
- Publication number
- CN105276327A CN105276327A CN201510753300.1A CN201510753300A CN105276327A CN 105276327 A CN105276327 A CN 105276327A CN 201510753300 A CN201510753300 A CN 201510753300A CN 105276327 A CN105276327 A CN 105276327A
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- China
- Prior art keywords
- hydraulic system
- noise
- inner bag
- layer
- anechoic chamber
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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
- F16L55/00—Devices or appurtenances for use in, or in connection with, pipes or pipe systems
- F16L55/02—Energy absorbers; Noise absorbers
- F16L55/027—Throttle passages
-
- 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
- F16L55/04—Devices damping pulsations or vibrations in fluids
- F16L55/045—Devices damping pulsations or vibrations in fluids specially adapted to prevent or minimise the effects of water hammer
- F16L55/05—Buffers therefor
- F16L55/052—Pneumatic reservoirs
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The invention provides a pipeline online damping silencer for a hydraulic system and belongs to the field of hydraulic engineering. The silencer is composed of a steel shell, a gas valve suit, a silencing chamber, an inner container, a sealing ring and an end port. The pipeline online damping silencer for the hydraulic system is connected with an outlet of a power unit pump of the hydraulic system in series. Three layers of metal screen pieces used for eliminating vibration are arranged in the silencing chamber from inside to outside. The aperture of the first layer of screen piece is 1/2 inch, the aperture of the second layer of screen piece is 1/8 inch, the aperture of the third layer of screen piece is 1/4 inch, and the radial distance between every two layers of screen pieces is 1/4 inch. Springs are installed in the radial gaps between screen pieces to achieve a supporting function, and it is guaranteed that each layer of screen piece has enough buffering space. The inner container is a rubber air bag and filled with nitrogen which bears impact of pulsating fluid. The silencer has the beneficial effects that the problems of pipeline vibration and noise of the hydraulic system are solved, the structure is novel and simple, cost is low, and practicality is good.
Description
Technical field
The present invention relates to a kind of shock-absorbing and noise-eliminating device, be specifically related to for the online shock-absorbing and noise-eliminating device of hydraulic system pipeline, be mainly used in noise and shake requiring higher hydraulic system, belong to oilhydraulic engineering field.
Background technique
In the hydraulic system of mechanized equipment, hydraulic pipe line is absolutely necessary, fluid in hydraulic pipe line flowing with pressure thus drive hydraulic equipment run.Experimental results shows: output pipe and return line only increase by 12 feet, and the noise of oil pump will increase 2-3 decibel.In fact, fluid and the fricative noise of pipeline very little, main noise source or pulsation are produced by oil pump, by pipeline propagate pulsation or vibrations produce noise.Hydraulic pipe line not only can propagate noise, and is the central core of circulation propagating into other hydraulic element from oil pump, and then, element again to noise generation effect, and propagates additional noise.When there is multiple pumping source in hydraulic system, extreme noise level and pulsation level can be caused; This noise and pulsation rank are after complete installation, and the vibration sympathetic response of multiple stage pump, the noise of generation and pulsation can work the mischief to system, in the working life of influential system, there is potential safety hazard.
At present, the measure that domestic hydraulic equipment is taked more is noise isolation, is just covered by noise source soundproof material parcel, and fundamentally do not reduce or stress release treatment and vibratory source, this method exists many narrow limitation.In addition, CN101975326B realizes damping noise reduction by the individual layer pipeline that hole is not of uniform size, and significantly do not receive the parts of noise and vibrations, it can only adopt one-way flow in addition, has inconvenience in installation with in using more.CN103603795A by reducing, and increases the mode of flexible pipe, and it is too large along journey energy loss that this method causes, and causes needing to increase power source, increases energy consumption and expense.The mechanism of therefore research and analysis hydraulic noise and vibration, thus reduce and reduce noise and vibration, and improve the performance of hydraulic system, and there is good Economy, there is actively profound significance.
Summary of the invention
The object of the invention is to design the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline, be applicable to require higher hydraulic plumbing system to noise and vibrations.The noise of any power unit can be reduced, reduce hydraulic impulse and hydraulic shock, and hydraulic impulse can cause the wearing and tearing of pump and the dielectric leakage of line connection.
The technical solution used in the present invention is to achieve these goals: the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline, be made up of steel shell, air valve external member, anechoic chamber, inner bag, seal ring and end port, the online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is connected on hydraulic system power unit delivery side of pump place; Described silencing apparatus steel shell is connected with the end port at two ends by port threads, and the design and installation of air valve external member is in the middle part of steel shell, and inner bag and anechoic room are combined and be arranged on steel shell inside; Described anechoic chamber is provided with the metal mesh sheet that three layers are eliminated vibrations from inside to outside, the space that this three-layer network sheet framework gets up is referred to as anechoic chamber, the aperture of the mesh sheet of first layer is 1/2 inch, the aperture of the mesh sheet of the second layer is 1/8 inch, the aperture of the mesh sheet of third layer is 1/32 inch, and wherein the radial distance of every layer of mesh sheet is 1/4 inch; Mounting spring in the radial distance of every sheet mesh sheet, spring plays a supportive role, and ensures there are enough buffer spaces in every layer of mesh sheet; Described inner bag is quality of rubber materials air bag, is filled with nitrogen in it, bears the impact of pulsating fluid, and inner bag wraps whole anechoic chamber, is the supplementary and perfect of anechoic chamber; Flowing medium is by during by mesh sheet, and pulse energy progressively can reduce due to the drag effect of aperture; Remaining pulse energy reaches gas courage place, is filled with nitrogen in inner bag, well dilution can fall pulse energy; Significantly can reduce from silencing apparatus flowing medium turbulence level out like this, reduce vibrations and the noise of pipe-line system.
Described steel shell is connected by port threads with the end port at two ends, described end port and hydraulic pipe line is threaded connection or Flange joint, terminates to be provided with between port and hydraulic pipe line to terminate port sealing circle.
Described anechoic chamber both ends of the surface are provided with anechoic chamber's end-face seal ring, and outer wall Tao You anechoic chamber of anechoic chamber external diameter seal ring, described seal ring is O RunddichtringO.
The standard material of described inner bag is resistant to elevated temperatures hydrogenation nitrile rubber, also can do fluorine rubber or the ethylene propylene rubber of special role, be filled with nitrogen in inner bag, and in inner bag, nitrogen pressure is the 50%-60% of hydraulic system working pressure.
The design and installation of described air valve external member is in the middle part of steel shell.
The online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is symplex structure, and fluid can two-way flow.
The invention has the beneficial effects as follows: solve hydraulic system pipeline vibrations and noise problem that there is novel structure, simple, the advantages such as cost is low, and practicability is good.
Accompanying drawing explanation
Fig. 1 is erection drawing of the present invention;
Fig. 2 is internal structure schematic diagram of the present invention;
Shown in figure: 1 steel shell, 2 air valve external members, 3 terminate port, 4 inner bags, 5 anechoic chambers, 6 anechoic chamber's end-face seal rings, 7 anechoic chamber's external diameter seal rings, and 8 terminate port sealing circle.
Embodiment
Below in conjunction with the drawings and specific embodiments, the present invention is illustrated.
Embodiment, as Figure 1-Figure 2, the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline, be made up of steel shell 1, air valve external member 2, anechoic chamber 5, inner bag 4, seal ring and end port 3, the online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is connected on hydraulic system power unit delivery side of pump place; Described silencing apparatus steel shell 1 is connected with the end port 3 at two ends by port threads, and air valve external member 2 design and installation is in the middle part of steel shell 1, and inner bag 4 and anechoic room are combined and be arranged on steel shell 1 inside; Described anechoic chamber 5 is provided with the metal mesh sheet that three layers are eliminated vibrations from inside to outside, the space that this three-layer network sheet framework gets up is referred to as anechoic chamber 5, the aperture of the mesh sheet of first layer is 1/2 inch, the aperture of the mesh sheet of the second layer is 1/8 inch, the aperture of the mesh sheet of third layer is 1/32 inch, and wherein the radial distance of every layer of mesh sheet is 1/4 inch; Mounting spring in the radial distance of every sheet mesh sheet, spring plays a supportive role, and ensures there are enough buffer spaces in every layer of mesh sheet; Described inner bag 4 is quality of rubber materials air bag, is filled with nitrogen, bears the impact of pulsating fluid in it, and inner bag 4 wraps whole anechoic chamber 5, is the supplementary and perfect of anechoic chamber; Flowing medium is by during by mesh sheet, and pulse energy progressively can reduce due to the drag effect of aperture; Remaining pulse energy reaches gas courage place, is filled with nitrogen in inner bag 4, well dilution can fall pulse energy; Can significantly reduce from silencing apparatus flowing medium turbulence level out like this, the impact of the vibrations that follow-up pipe-line system does not have and noise.Described steel shell 1 is connected by port threads with the end port 3 at two ends, and described end port 3 is threaded connection or Flange joint with hydraulic pipe line, terminates to be provided with between port 3 and hydraulic pipe line to terminate port sealing circle 8.Described anechoic chamber both ends of the surface are provided with anechoic chamber's end-face seal ring 6, and outer wall Tao You anechoic chamber of anechoic chamber external diameter seal ring 7, described seal ring is O RunddichtringO.The standard material of described inner bag 4 is resistant to elevated temperatures hydrogenation nitrile rubber, also can do fluorine rubber or the ethylene propylene rubber of special role, be filled with nitrogen in inner bag 4, and in inner bag 4, nitrogen pressure is the 50%-60% of hydraulic system working pressure.Online for hydraulic system pipeline shock-absorbing and noise-eliminating device is connected on hydraulic system power unit delivery side of pump place, fluid terminates port by one end and enters silencing apparatus, when fluid is by anechoic chamber 5, because anechoic chamber 5 is one section three layers pipeline being covered with 1/2 inch of-1/32 inches orifice from inside to outside, fluid, by after these apertures, clashes into the inner bag 4 being full of nitrogen.Pulsation fluid often impacts an inner bag 4, and inner bag 4 will produce and once be out of shape; Due to the slight deformation of inner bag 4, thus reduce vibrations and noise.Inner bag 4 is charged the nitrogen pressure of the 50%-60% of hydraulic system working pressure usually by air valve external member 2.Because aperture outermost in anechoic chamber 5 only has 1/32 inch, therefore inner bag 4 can not be squeezed into aperture; Inner bag 4 constantly accepts fluid pulsatile impact, by like this, reduces vibrations and the noise of hydraulic system pipeline.The online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is connected on hydraulic system power unit delivery side of pump place, to prevent noise and pulsation from entering system as much as possible, because the present invention does not exist moving parts, therefore two ends can be used as filler opening or oil outlet, and be arranged on from focus more close to, damping and silencing effect is better.
Last it is noted that obviously, above-described embodiment is only for example of the present invention is clearly described, and the restriction not to mode of execution.For those of ordinary skill in the field, can also make other changes in different forms on the basis of the above description, thus the apparent change of extending out or variation be still among protection scope of the present invention.
Claims (6)
1. the online shock-absorbing and noise-eliminating device of hydraulic system pipeline, be made up of steel shell, air valve external member, anechoic chamber, inner bag, seal ring and end port, feature is that the online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is connected on hydraulic system power unit delivery side of pump place; Described silencing apparatus steel shell is connected with the end port at two ends by port threads, and the design and installation of air valve external member is in the middle part of steel shell, and inner bag and anechoic room are combined and be arranged on steel shell inside; Described anechoic chamber is provided with the metal mesh sheet that three layers are eliminated vibrations from inside to outside, the space that this three-layer network sheet framework gets up is referred to as anechoic chamber, the aperture of the mesh sheet of first layer is 1/2 inch, the aperture of the mesh sheet of the second layer is 1/8 inch, the aperture of the mesh sheet of third layer is 1/32 inch, and wherein the radial distance of every layer of mesh sheet is 1/4 inch; Mounting spring in the radial distance of every sheet mesh sheet, spring plays a supportive role, and ensures there are enough buffer spaces in every layer of mesh sheet; Described inner bag is quality of rubber materials air bag, is filled with nitrogen in it, bears the impact of pulsating fluid, and inner bag wraps whole anechoic chamber; Flowing medium is by during by mesh sheet, and pulse energy progressively can reduce due to the drag effect of aperture, and remaining pulse energy reaches gas courage place, is filled with nitrogen in inner bag, and well pulse energy is fallen in dilution; Significantly can reduce from silencing apparatus flowing medium turbulence level out like this, reduce vibrations and the noise of pipe-line system.
2. the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline according to claim 1, it is characterized in that described steel shell is connected by port threads with the end port at two ends, described end port and hydraulic pipe line is threaded connection or Flange joint, terminates to be provided with between port and hydraulic pipe line to terminate port sealing circle.
3. the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline according to claim 1, is characterized in that described anechoic chamber both ends of the surface are provided with anechoic chamber's end-face seal ring, and outer wall Tao You anechoic chamber of anechoic chamber external diameter seal ring, described seal ring is O RunddichtringO.
4. the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline according to claim 1, it is characterized in that the standard material of described inner bag is resistant to elevated temperatures hydrogenation nitrile rubber, also can with fluorine rubber or ethylene propylene rubber, be filled with nitrogen in inner bag, in inner bag, nitrogen pressure is the 50%-60% of hydraulic system working pressure.
5. the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline according to claim 1, is characterized in that the design and installation of described air valve external member is in the middle part of steel shell.
6. the online shock-absorbing and noise-eliminating device of a kind of hydraulic system pipeline according to claim 1, it is characterized in that the online shock-absorbing and noise-eliminating device of described hydraulic system pipeline is symplex structure, fluid can two-way flow.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753300.1A CN105276327A (en) | 2015-11-09 | 2015-11-09 | Pipeline online damping silencer for hydraulic system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510753300.1A CN105276327A (en) | 2015-11-09 | 2015-11-09 | Pipeline online damping silencer for hydraulic system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105276327A true CN105276327A (en) | 2016-01-27 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510753300.1A Pending CN105276327A (en) | 2015-11-09 | 2015-11-09 | Pipeline online damping silencer for hydraulic system |
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| Country | Link |
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| CN (1) | CN105276327A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109027500A (en) * | 2018-07-22 | 2018-12-18 | 邢树林 | A kind of lifting sleeping pillow pressure test pipe line shock-absorbing denoising device |
| CN110608208A (en) * | 2018-06-14 | 2019-12-24 | 布柯玛蓄能器（天津）有限公司 | Buffering formula energy storage ware |
| CN113606420A (en) * | 2021-07-05 | 2021-11-05 | 阀安格水处理系统(太仓)有限公司 | Fixed energy dissipation device |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3380480A (en) * | 1966-04-21 | 1968-04-30 | William J. Bleasdale | Surge cushioning means for high pressure fluid system |
| US3744527A (en) * | 1971-08-13 | 1973-07-10 | J Mercier | Pulse damper unit for hydraulic system |
| US4759387A (en) * | 1987-04-10 | 1988-07-26 | Wilkes-Mclean, Ltd. | Pulsation absorbing device |
| CN102226491A (en) * | 2011-06-08 | 2011-10-26 | 浙江大学 | Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline |
| CN102543059A (en) * | 2011-11-21 | 2012-07-04 | 湖北工业大学 | Damping vibration-attenuation and noise-reduction method as well as pored damping sheet |
| CN203585530U (en) * | 2012-09-28 | 2014-05-07 | 费希尔控制国际公司 | Modal attenuator |
| CN204512780U (en) * | 2015-03-11 | 2015-07-29 | 辽宁锦兴石油机械有限公司 | Thermal recovery oil high temperature and high pressure steam composite type silencer |
-
2015
- 2015-11-09 CN CN201510753300.1A patent/CN105276327A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3380480A (en) * | 1966-04-21 | 1968-04-30 | William J. Bleasdale | Surge cushioning means for high pressure fluid system |
| US3744527A (en) * | 1971-08-13 | 1973-07-10 | J Mercier | Pulse damper unit for hydraulic system |
| US4759387A (en) * | 1987-04-10 | 1988-07-26 | Wilkes-Mclean, Ltd. | Pulsation absorbing device |
| CN102226491A (en) * | 2011-06-08 | 2011-10-26 | 浙江大学 | Fluid pulsation eliminating and noise reducing device for liquid transportation pipeline |
| CN102543059A (en) * | 2011-11-21 | 2012-07-04 | 湖北工业大学 | Damping vibration-attenuation and noise-reduction method as well as pored damping sheet |
| CN203585530U (en) * | 2012-09-28 | 2014-05-07 | 费希尔控制国际公司 | Modal attenuator |
| CN204512780U (en) * | 2015-03-11 | 2015-07-29 | 辽宁锦兴石油机械有限公司 | Thermal recovery oil high temperature and high pressure steam composite type silencer |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110608208A (en) * | 2018-06-14 | 2019-12-24 | 布柯玛蓄能器（天津）有限公司 | Buffering formula energy storage ware |
| CN109027500A (en) * | 2018-07-22 | 2018-12-18 | 邢树林 | A kind of lifting sleeping pillow pressure test pipe line shock-absorbing denoising device |
| CN113606420A (en) * | 2021-07-05 | 2021-11-05 | 阀安格水处理系统(太仓)有限公司 | Fixed energy dissipation device |
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| C06 | Publication | ||
| PB01 | Publication | ||
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| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20160127 |