CN105715327B - To spraying formula gas attenuator - Google Patents
To spraying formula gas attenuator Download PDFInfo
- Publication number
- CN105715327B CN105715327B CN201610213580.1A CN201610213580A CN105715327B CN 105715327 B CN105715327 B CN 105715327B CN 201610213580 A CN201610213580 A CN 201610213580A CN 105715327 B CN105715327 B CN 105715327B
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- CN
- China
- Prior art keywords
- cavity
- jet pipe
- attenuator
- partition board
- connecting flange
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F01—MACHINES OR ENGINES IN GENERAL; ENGINE PLANTS IN GENERAL; STEAM ENGINES
- F01N—GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR MACHINES OR ENGINES IN GENERAL; GAS-FLOW SILENCERS OR EXHAUST APPARATUS FOR INTERNAL COMBUSTION ENGINES
- F01N1/00—Silencing apparatus characterised by method of silencing
- F01N1/08—Silencing apparatus characterised by method of silencing by reducing exhaust energy by throttling or whirling
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F15—FLUID-PRESSURE ACTUATORS; HYDRAULICS OR PNEUMATICS IN GENERAL
- F15D—FLUID DYNAMICS, i.e. METHODS OR MEANS FOR INFLUENCING THE FLOW OF GASES OR LIQUIDS
- F15D1/00—Influencing flow of fluids
Abstract
Include cylindrical type air-flow buffer cavity to spraying formula gas attenuator, the attenuator the invention discloses one kind, be provided with inlet duct on the left of cavity, entrance connecting flange is provided at inlet duct；Outlet conduit is provided on the right side of cavity, outlet connecting flange is provided at outlet conduit；Partition board is installed in the middle part of cavity, two jet pipes are symmetrically connected on partition board, jet pipe is set on the right side of partition board, and nozzle tip is bent to cavity axis direction；Invention considers the characteristic of pulsatile impact air-flow comprehensively, the basic principle of air-flow buffer device and acoustic filter is merged, and consider the problem of equipment fabricating yard is narrow, by setting two to jet pipe, reach dissipation impact air-flow energy to the full extent, reduce pipeline coupling, ensure pipeline vibration amplitude within critical field, production maintenance cost is reduced, while has the advantages that resistance attenuator attenuation band is wide, can be decayed to the pressure fluctuation of full frequency band.
Description
Technical field
The present invention relates to a kind of attenuator more particularly to one kind to spraying formula gas attenuator.
Background technology
The gas attenuator of the prior art due to the intermittence of process that reciprocating compressor is inhaled, is vented, leads to air-flow
Pressure and speed in cyclically-varying, that is, generate the pulsation of air-flow.In reciprocating compressor unit normal operation, the arteries and veins of air-flow
Dynamic phenomenon is inevitable.But it is excessive when pulsing, entire compressor and its pipe-line system will be made to generate high vibration, promote tube body
And its attachment fatigue, lead to pipe leakage, be broken down to catastrophic accidents such as explosions；Even air-supply valve causes very severe work
Make environment, air valve is promoted to accelerate damage, can not work normally compressor, and then lead to the reduction of its power performance.The prior art
Have developed a variety of different fluid pulsation attenuators, such as last of the twelve Earthly Branches nurse Hertz resonator, collateral branch's acoustic resonator, multi-cavity acoustic resonator.But this
The shape of a little devices change air pulses and the effect of speed are poor, undesirable to the attenuating of gas, are unable to reach and disappear
Subtract the purpose of piping and auxiliary device exciting force.
There is following some the shortcomings that being difficult to overcome for traditional fluid pulsation attenuator：
1) the structural volume design of attenuator is larger, installs and uses and is restricted；
2) resonant frequency of attenuator can not be adjusted or adjusting method is more complicated；
3) parameter of attenuator can not realize that systematization selects；
4) it is relatively low to the attenuating of pipe-line system pulsation；
5) fundamental frequency of decaying simultaneously cannot all be completed other than multi-cavity acoustic resonator in traditional common fluid pulsation dampening.
The vibration of reciprocating compressor outlet piping in order to control, Publication No. CN 1755070A, entitled " air pulse
Vibration damping device " Chinese patent literature discloses internal component equipped with changeover portion and nozzle, between internal component and external shell
Form a flow expansion space.
Invention content
Gas and impact it is an object of the invention to solve to generate during large reciprocating compressor group suction and discharge are shaken
Dynamic problem, provides a kind of broadband, small, easy making process, efficient practical gas attenuator.
It is realized especially by following technical scheme：
One kind is to spraying formula gas attenuator, including cylindrical type air-flow buffer cavity, is provided with entrance on the left of cavity, enters
Entrance connecting flange is provided at mouthful；Outlet is provided on the right side of cavity, exit is provided with outlet connecting flange；Pacify in the middle part of cavity
Symmetrically it is connected with two jet pipes equipped with partition board, on partition board, jet pipe is set on the right side of partition board, and nozzle tip is to chamber axis side
To bending.
The cross-sectional area sum of two jet pipe is equal to the cross-sectional area of inlet pipeline or outlet conduit.
The partition board is located at 1/3rd cavitys, and the length of cylindrical type air-flow buffer cavity is 3-4 times of cavity internal diameter.
The jet pipe is divided into straight tube and elbow, and the elbow end of two jet pipes is bent, and two elbows to chamber axis direction
The central point of center line intersection point and outlet connecting flange is same point.
Aperture is uniformly opened up on the jet pipe.
The aperture of the aperture is a quarter of jet pipe caliber, the spacing between aperture for jet pipe caliber three/
One.
Compared with prior art, have the advantage that for：Invention considers the characteristic of pulsatile impact air-flow, fusion comprehensively
The basic principle of air-flow buffer device and acoustic filter, and consider the problem of equipment fabricating yard is narrow, pass through setting two
Root reaches dissipation impact air-flow energy, reduces pipeline coupling, ensure that pipeline vibration amplitude is being marked to the full extent to jet pipe
Within the scope of standard, production maintenance cost is reduced, while has the advantages that resistance attenuator attenuation band is wide, it can be to full range
The pressure fluctuation of section decays；
The elbow end of two jet pipes is bent to chamber axis direction, and two elbow center line intersection points and outlet connecting flange
Central point for same point, comprehensive performance is best at this time；The central point intersection point of two elbow intersection points distance outlet connecting flange is more remote,
Namely angle folded by two elbow intersections is bigger, and weakening effect is better, but gas-flow resistance accordingly increases, and influences compressor efficiency；
Jet pipe opens up aperture, i.e. perforated pipe：Perforated pipe has relatively low fluid resistance loss and good filtering property of eliminating the noise
Can, it can preferably cut down and drag losses very little the low frequency gas generated by reciprocating compressor；Perforated pipe
Principle be based on perforated acoustical wave filter, in terms of noise elimination, perforated acoustical wave filter can be regarded as n Helmholtz resonator
Series connection, this can be very good to improve noise elimination effect and airflow characteristic.
Description of the drawings
Fig. 1 is structure diagram of the present invention to spray formula gas attenuator.
Specific embodiment
Purpose and technical solution to make the embodiment of the present invention is clearer, below in conjunction with the attached of the embodiment of the present invention
Figure, is clearly and completely described the technical solution of the embodiment of the present invention.Obviously, described embodiment is of the invention
Part of the embodiment, instead of all the embodiments.Based on described the embodiment of the present invention, those of ordinary skill in the art
The all other embodiments obtained under the premise of without creative work, shall fall within the protection scope of the present invention.
As shown in Figure 1, it is a kind of to spraying formula gas attenuator, including cylindrical type air-flow buffer cavity 2, set on the left of cavity
Inlet duct is equipped with, and entrance connecting flange 1 is provided at inlet duct；Outlet conduit is provided with, and going out on the right side of cavity
Outlet connecting flange 5 is provided at mouth pipeline；Partition board 3 is installed in the middle part of cavity, jet pipe 4 and spray are symmetrically connected on partition board
Pipe 6, two jet pipes are set on the right side of partition board, and nozzle tip is bent to cavity axis direction, the cross-sectional area of two jet pipe it
With the cross-sectional area equal to inlet pipeline or outlet conduit.
The bore for exporting connecting flange and entrance connecting flange is d, and the internal diameter of cylindrical type air-flow buffer cavity is D, chamber
Body length is 3-4 times of internal diameter, and the partition board is located at 1/3rd cavitys；The jet pipe is divided into straight tube and elbow, two sprays
The elbow end of pipe is bent to chamber axis direction, and two elbow center line intersection points are same with the central point for exporting connecting flange
Point；Aperture is uniformly opened up on the jet pipe；The aperture of the aperture is a quarter of jet pipe caliber, and the spacing between aperture is
/ 3rd of jet pipe caliber.
The art of this patent scheme has merged the basic principle of air-flow buffer device and acoustic filter, and cavity is divided into appearance by partition board
Two parts that product does not wait, the impact characteristics of pulse pneumatic：Since reciprocating-piston compressor is inhaled, the intermittence of exhaust, air-flow
Pressure and speed are in the relatively low cyclically-varying of frequency.Pulse pneumatic is introduced into cushion chamber into row buffering, subsequently enters based on sound
The cushion chamber for learning wave filter is filtered, and the pressure wave of pulse pneumatic is upset in this device and mitigated.
Those skilled in the art of the present technique are appreciated that unless otherwise defined all terms used herein are (including technology art
Language and scientific terminology) there is the meaning identical with the general understanding of the those of ordinary skill in fields of the present invention.Should also
Understand, those terms such as defined in the general dictionary, which should be understood that, to be had and the meaning in the context of the prior art
The consistent meaning of justice, and unless defined as here, will not be with idealizing or the meaning of too formal be explained.
Claims (4)
- It is 1. a kind of to spraying formula gas attenuator, it is characterised in that：The attenuator includes cylindrical type air-flow buffer cavity, chamber Inlet duct is provided on the left of body, entrance connecting flange is provided at inlet duct；Outlet conduit is provided on the right side of cavity, is exported Outlet connecting flange is provided at pipeline；Partition board is installed in the middle part of cavity, two jet pipes, jet pipe are symmetrically connected on partition board It is set on the right side of partition board, nozzle tip is bent to chamber axis direction；The jet pipe is divided into straight tube and elbow, and the elbow end of two jet pipes is bent, and two elbow centers to chamber axis direction The central point of line intersection point and outlet connecting flange is same point；Aperture is uniformly opened up on the jet pipe.
- 2. as described in claim 1 to spraying formula gas attenuator, it is characterised in that：The cross-sectional area sum of two jet pipe Equal to inlet pipeline or the cross-sectional area of outlet conduit.
- 3. as claimed in claim 2 to spraying formula gas attenuator, it is characterised in that：The partition board is located at 1/3rd cavitys Place, the length of cylindrical type air-flow buffer cavity are 3-4 times of cavity internal diameter.
- 4. as described in claim 1 to spraying formula gas attenuator, it is characterised in that：The aperture of the aperture is jet pipe caliber A quarter, the spacing between aperture is 1/3rd of jet pipe caliber.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213580.1A CN105715327B (en) | 2016-04-07 | 2016-04-07 | To spraying formula gas attenuator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610213580.1A CN105715327B (en) | 2016-04-07 | 2016-04-07 | To spraying formula gas attenuator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105715327A CN105715327A (en) | 2016-06-29 |
| CN105715327B true CN105715327B (en) | 2018-06-26 |
Family
ID=56159738
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610213580.1A Active CN105715327B (en) | 2016-04-07 | 2016-04-07 | To spraying formula gas attenuator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105715327B (en) |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB771106A (en) * | 1954-11-01 | 1957-03-27 | Harald Anero | Improvements relating to engine exhaust silencers |
| CN1755070A (en) * | 2004-09-30 | 2006-04-05 | 刘友宏 | Pulsation air current vibration-damping arrangement |
| CN2937493Y (en) * | 2006-06-09 | 2007-08-22 | 东莞市康菱机电设备工程有限公司 | Two-stage silencer for diesel generator |
| US8123498B2 (en) * | 2008-01-24 | 2012-02-28 | Southern Gas Association Gas Machinery Research Council | Tunable choke tube for pulsation control device used with gas compressor |
| BR102012026728A2 (en) * | 2012-10-18 | 2014-08-26 | Whirlpool Sa | EXPANSION CHAMBER FOR ALTERNATIVE COMPRESSOR UNLOADING LINE |
-
2016
- 2016-04-07 CN CN201610213580.1A patent/CN105715327B/en active Active
Also Published As
| Publication number | Publication date |
|---|---|
| CN105715327A (en) | 2016-06-29 |
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