CN106090523A - A kind of pipeline pressure pulsation attenuator based on mass-spring system - Google Patents
A kind of pipeline pressure pulsation attenuator based on mass-spring system Download PDFInfo
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- CN106090523A CN106090523A CN201610635153.2A CN201610635153A CN106090523A CN 106090523 A CN106090523 A CN 106090523A CN 201610635153 A CN201610635153 A CN 201610635153A CN 106090523 A CN106090523 A CN 106090523A
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- spring
- metal tube
- main pipeline
- pipeline
- pressure pulsation
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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
- 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
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Pipe Accessories (AREA)
Abstract
The present invention relates to a kind of pipeline pressure pulsation attenuator based on mass-spring system, belong to fluid media (medium) pipeline vibration field of noise control.This attenuator is mainly made up of metal tube, Closed end plate, the combination of more than one spring oscillator and sealing member；Metal tube is fixedly mounted on main pipeline, spring oscillator combination is formed by fixedly connecting by a spring and a metal derby, spring oscillator combination is fixedly connected sequentially in the inside of metal tube, it is connected close to the spring in the spring oscillator combination of Closed end plate and Closed end plate are fixing, is sealed by sealing member between metal derby and the metal tube in the spring oscillator combination of installing hole and this metal derby contacts with the fluid media (medium) within main pipeline.The quantity that attenuator of the present invention is combined by regulation spring oscillator, and quality and the spring rate of different metal block is rationally set, multiple driving frequency can be reduced simultaneously；By increasing the quantity of described attenuator, attenuating can be optimized further.
Description
Technical field
The present invention relates to a kind of pipeline pressure pulsation attenuator being arranged on pipeline, belong to fluid media (medium) pipeline vibration and make an uproar
Acoustic control field.
Background technology
Naval vessel pipe-line system includes cooling water system, draining system, hydraulic system etc., mainly defeated in order to complete fluid media (medium)
Give, the function such as energy transmission, also can produce pressure fluctuation inside fluid media (medium) simultaneously.Conduit fluid pressure pulsation not only can be drawn
Play pipe vibration and radiated noise, even also result in pipeline fatigue rupture, and then it is properly functioning to affect system.Therefore, reduce
Pipeline pressure pulsation level is the most significant for the security reliability improving naval vessel Sound stealth level and pipeline self.
At present, commonly used pipeline pressure pulsation attenuator mainly includes that Helmholtz resonator, expansion chamber sound filter
Device and a combination of both structure etc., wherein Helmholtz resonator is mainly used in the pipeline pressure pulsation of decay low-frequency range, swollen
Swollen chamber acoustic filter is mainly used in the pipeline pressure pulsation of decay high band, can be to broadness frequency by both carry out reasonable combination
Attenuation is played in pressure fluctuation in the range of rate.Theoretical research and experimental test all show, pipeline pressure pulsation overall magnitude
Level depends primarily on the discrete line spectrum of characteristics of low-frequency that plant equipment source produces, say, that as long as it is special effectively to control low frequency
Levy the pressure pulsation magnitude of discrete line spectrum, just can effectively reduce pipeline pressure pulsation overall magnitude level.The most currently used
For pipeline pressure pulsation attenuator, if wanting to obtain good effect in low-frequency range, be necessary for increasing its physical dimension, this for
The naval vessel that space is extremely compact, naval vessel is difficult to accept the most under water.
Summary of the invention
For existing pipeline pressure pulsation attenuator for controlling asking of the poor effect of the pipeline pressure pulsation of low-frequency range
Topic, it is an object of the invention to provide a kind of pipeline pressure pulsation attenuator based on mass-spring system, and this attenuator can
Effectively reduce the pipeline pressure pulsation level of low-frequency range, and the volume of this attenuator is little, is particularly well-suited to space extremely compact
Naval vessel inside.
It is an object of the invention to by the realization of technical scheme once.
A kind of pipeline pressure pulsation attenuator based on mass-spring system, described attenuator mainly includes metal tube, envelope
The combination of closed end plate, more than one spring oscillator and sealing member；Ancillary equipment is main pipeline, and the tube wall of main pipeline is provided with installation
Hole, the inside of main pipeline is fluid media (medium)；
One end of metal tube is fixedly mounted on the installing hole of main pipeline, and the other end is fixing with Closed end plate to be connected；Spring
Element combination is formed by fixedly connecting by a spring and a metal derby, and spring oscillator combination is fixed successively in the inside of metal tube
Connect, wherein, be connected, close to the bullet of installing hole close to the spring in the spring oscillator combination of Closed end plate and Closed end plate are fixing
Carry out sealing by sealing member between metal derby and metal tube in spring element combination and this metal derby and the stream within main pipeline
Body medium contacts.
Preferably, the profile of metal derby is identical with the shape of cross section of metal tube, and the size of metal derby should be less than gold
Belong to the size of pipe cross section, but the size of metal derby is not less than the 90% of metal tube cross sectional dimensions.
Preferably, the shape of cross section of metal tube is identical with the shape of cross section of installing hole, and the size of metal tube with
The size of installing hole is consistent.
The cross section of metal tube is regular shape, circular or square.
Preferably, the 0 of the metal derby thickness contacted with the fluid media (medium) within main pipeline～10% is positioned at main pipeline.
On the length direction of main pipeline or the circumference of main pipeline, more than one is installed of the present invention based on spring oscillator
The pipeline pressure pulsation attenuator of system.
Beneficial effect:
(1) when there is multiple driving frequency in pipeline, can be by increasing spring oscillator group in attenuator of the present invention
The quantity closed, and quality and the spring rate of metal derby in spring oscillator combination is rationally set, make different spring vibration subgroups
The natural frequency closed is coincide one by one with the driving frequency in main pipeline, thus reaches to reduce the purpose of multiple driving frequency simultaneously.
This is because the metal derby contacted with the fluid media (medium) within main pipeline is by, after main pipeline pressure fluctuation, encouraging spring oscillator
Combination is vibrated, and the vibration of metal derby will be pulsed to fluid media (medium) radiation pressure in turn, thus offset within main pipeline
Pressure fluctuation；It addition, the natural frequency of once spring oscillator combination is coincide with main pipeline low-frequency range characteristic frequency, it will produce
Big attenuating.
(2) natural frequency of spring oscillator combination is inversely proportional to the quality of metal derby, and the quality of metal derby is the biggest, intrinsic frequency
Rate is the lowest.Attenuator of the present invention uses the metal material that density is bigger, can also while increasing metal derby quality
Keeping the compactedness of metal derby physical dimension, be conducive to reducing the volume of described attenuator, installing space demand is little.
(3) in attenuator of the present invention, between the metal derby and the metal tube that contact with the fluid media (medium) within main pipeline
Installing a set of sealing member, in being possible to prevent main pipeline, fluid media (medium) is revealed, and the most also provides a kind of resistance for spring oscillator combination
Buddhist nun acts on.It addition, the space of main pipeline do not occupied by the metal derby contacted with the fluid media (medium) within main pipeline as far as possible, it is ensured that supervisor
Road cross sectional shape will not be undergone mutation, thus keeps less fluid resistance.
(4) profile of metal derby of the present invention and the cross sectional shape of metal tube are identical, and being dimensioned slightly smaller than of metal derby
The size of metal tube, the most easily sealing but also metal tube can be utilized to guide, keep spring oscillator to combine at metal tube
Length direction on vibrate.
(5) multiple attenuator of the present invention can be installed on the length direction or circumference of main pipeline simultaneously, enter one
Step increases attenuating.
Accompanying drawing explanation
Fig. 1 is the structural representation installing an attenuator of the present invention on main pipeline.
Fig. 2 is the structural representation installing four attenuators of the present invention on main pipeline length direction.
Fig. 3 is the structural representation installing four attenuators of the present invention in main pipeline circumference.
Wherein, 1-metal tube, 2-blind end version, 3-spring, 4-metal derby, 5-sealing member, 6-main pipeline.
Detailed description of the invention
The present invention will be further described with detailed description of the invention below in conjunction with the accompanying drawings.
As it is shown in figure 1, a kind of pipeline pressure pulsation attenuator based on mass-spring system, described attenuator mainly includes
Metal tube 1,2, three spring oscillator combinations of Closed end plate and sealing member 5；Ancillary equipment is main pipeline 6, the tube wall of main pipeline 6
Being provided with installing hole, the inside of main pipeline 6 is fluid media (medium)；The profile of metal derby 4, the shape of cross section of metal tube 1 and installation
The shape of cross section in hole is all circular, the 96% of a diameter of metal tube diameter of metal derby, the diameter of metal tube 1 and installing hole
Diameter is consistent；
One end of metal tube 1 is fixed by welding on the installing hole of main pipeline 6, and the other end is by welding and Closed end plate
2 fixing connections；Spring oscillator combination by a spring 3 and metal derby 4 by being welded to form, three spring oscillators combinations
It is fixedly connected sequentially in the inside of metal tube 1, wherein, close to the spring 3 in the spring oscillator combination of Closed end plate 2 and blind end
Weld between plate 2, entered by sealing member 5 between metal derby 4 and the metal tube 1 in the spring oscillator combination of installing hole
Row seals, and is positioned at main pipeline 6 close to 3% of metal derby 4 thickness in the spring oscillator combination of installing hole internal with main pipeline 6
Fluid media (medium) contact.
Attenuator described in this enforcement can reduce internal three driving frequencies of main pipeline 6 simultaneously.In order to reach preferably to decline
Decreasing effect fruit, can install the attenuator described in four the present embodiment, as shown in Figure 2 on the length direction of main pipeline 6；Or
Attenuator described in four the present embodiment is installed, as shown in Figure 3 in the circumference of main pipeline 6.
But, in actual applications, spring vibration subgroup is set according to the quantity of main pipeline 6 internal driving frequency to be reduced
The quantity closed；According to attenuating to be reached, the described attenuator being arranged in the length direction of main pipeline 6 or circumference is set
Quantity.
In sum, these are only presently preferred embodiments of the present invention, be not intended to limit protection scope of the present invention.
All within the spirit and principles in the present invention, any modification, equivalent substitution and improvement etc. made, should be included in the present invention's
Within protection domain.
Claims (6)
1. a pipeline pressure pulsation attenuator based on mass-spring system, it is characterised in that: described attenuator mainly includes
The combination of metal tube (1), Closed end plate (2), more than one spring oscillator and sealing member (5)；Ancillary equipment is main pipeline (6),
The tube wall of main pipeline (6) is provided with installing hole, and the inside of main pipeline (6) is fluid media (medium)；
One end of metal tube (1) is fixedly mounted on the installing hole of main pipeline (6), and the other end is fixing with Closed end plate (2) to be connected；
Spring oscillator combination is formed by fixedly connecting by a spring (3) and a metal derby (4), and spring oscillator combines in metal tube (1)
Inside be fixedly connected sequentially, wherein, spring (3) and the Closed end plate (2) in combining close to the spring oscillator of Closed end plate (2)
Fixing connection, is entered by sealing member (5) between metal derby (4) and the metal tube (1) in the spring oscillator combination of installing hole
The fluid media (medium) that row seals and this metal derby (4) is internal with main pipeline (6) contacts.
A kind of pipeline pressure pulsation attenuator based on mass-spring system the most according to claim 1, it is characterised in that:
The profile of metal derby (4) is identical with the shape of cross section of metal tube (1), and the size of metal derby (4) should be less than metal tube (1)
The size of cross section, but the size of metal derby (4) is not less than the 90% of metal tube (1) cross sectional dimensions..
A kind of pipeline pressure pulsation attenuator based on mass-spring system the most according to claim 1, it is characterised in that:
The shape of cross section of metal tube (1) is identical with the shape of cross section of installing hole, and the size of metal tube (1) and the chi of installing hole
Very little in the same size.
A kind of pipeline pressure pulsation attenuator based on mass-spring system the most according to claim 1, it is characterised in that:
The shape of cross section of metal tube (1) is circular or square.
A kind of pipeline pressure pulsation attenuator based on mass-spring system the most according to claim 1, it is characterised in that:
The 0～10% of metal derby (4) thickness that the fluid media (medium) internal with main pipeline (6) contacts is positioned at main pipeline (6).
6. according to a kind of based on mass-spring system the pipeline pressure pulsation attenuator described in any one of claim 1 to 5, its
It is characterised by: on the length direction of main pipeline (6) or the circumference of main pipeline (6), more than one is installed described based on spring oscillator
The pipeline pressure pulsation attenuator of system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635153.2A CN106090523B (en) | 2016-08-05 | 2016-08-05 | A kind of pipeline pressure pulsation attenuator based on mass-spring system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610635153.2A CN106090523B (en) | 2016-08-05 | 2016-08-05 | A kind of pipeline pressure pulsation attenuator based on mass-spring system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN106090523A true CN106090523A (en) | 2016-11-09 |
| CN106090523B CN106090523B (en) | 2019-07-19 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201610635153.2A Expired - Fee Related CN106090523B (en) | 2016-08-05 | 2016-08-05 | A kind of pipeline pressure pulsation attenuator based on mass-spring system |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110312886A (en) * | 2018-01-25 | 2019-10-08 | 巴西石油公司 | For starting or restarting the auxiliary system and method for the flowing of gelation fluid |
| CN110939614A (en) * | 2019-12-14 | 2020-03-31 | 哈尔滨工业大学 | Broadband spring oscillator hydraulic pulsation attenuator |
| CN113236877A (en) * | 2021-06-24 | 2021-08-10 | 哈尔滨工程大学 | Suppression device for flow-induced noise and vortex-induced noise of marine pipeline |
| CN113714599A (en) * | 2021-08-23 | 2021-11-30 | 深圳市佳士科技股份有限公司 | Circulating cooling water tank |
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| CN104976483A (en) * | 2015-06-30 | 2015-10-14 | 天津市远大阀门有限公司 | Spring type pipeline buffer |
| CN205919056U (en) * | 2016-08-05 | 2017-02-01 | 中国船舶重工集团公司第七一九研究所 | Pipeline pressure pulsation dampening based on spring oscillator system |
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2016
- 2016-08-05 CN CN201610635153.2A patent/CN106090523B/en not_active Expired - Fee Related
Patent Citations (6)
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| JP2000065280A (en) * | 1998-08-12 | 2000-03-03 | Kiyoshi Tanaka | Water pressure stabilizer |
| KR20020090789A (en) * | 2001-05-29 | 2002-12-05 | 골드라인 링조인트주식회사 | A preventive apparatus for water hammer |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110312886A (en) * | 2018-01-25 | 2019-10-08 | 巴西石油公司 | For starting or restarting the auxiliary system and method for the flowing of gelation fluid |
| CN110939614A (en) * | 2019-12-14 | 2020-03-31 | 哈尔滨工业大学 | Broadband spring oscillator hydraulic pulsation attenuator |
| CN113236877A (en) * | 2021-06-24 | 2021-08-10 | 哈尔滨工程大学 | Suppression device for flow-induced noise and vortex-induced noise of marine pipeline |
| CN113236877B (en) * | 2021-06-24 | 2022-08-02 | 哈尔滨工程大学 | Suppression device for flow-induced noise and vortex-induced noise of marine pipeline |
| CN113714599A (en) * | 2021-08-23 | 2021-11-30 | 深圳市佳士科技股份有限公司 | Circulating cooling water tank |
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| Publication number | Publication date |
|---|---|
| CN106090523B (en) | 2019-07-19 |
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Granted publication date: 20190719 Termination date: 20200805 |