CN107084113A - A kind of low frequency muffler - Google Patents
A kind of low frequency muffler Download PDFInfo
- Publication number
- CN107084113A CN107084113A CN201710409508.0A CN201710409508A CN107084113A CN 107084113 A CN107084113 A CN 107084113A CN 201710409508 A CN201710409508 A CN 201710409508A CN 107084113 A CN107084113 A CN 107084113A
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- CN
- China
- Prior art keywords
- low frequency
- layer
- sound
- grades
- diffusion layer
- 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
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04B—POSITIVE-DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS
- F04B39/00—Component parts, details, or accessories, of pumps or pumping systems specially adapted for elastic fluids, not otherwise provided for in, or of interest apart from, groups F04B25/00 - F04B37/00
- F04B39/0027—Pulsation and noise damping means
- F04B39/0083—Pulsation and noise damping means using blow off silencers
Abstract
The invention discloses a kind of low frequency muffler, it includes one-level hush pipe and two grades of hush pipes, described one-level hush pipe is sequentially provided with deep seated blowhole passage, thermal insulation layer A, low frequency noise reduction absorbed layer A and sound insulation diffusion layer A from inside to outside, the left surface of one-level hush pipe is connected with suction nozzle, suction nozzle also is provided with deep seated blowhole passage, thermal insulation layer A and sound insulation diffusion layer A from inside to outside, and the right flank of one-level hush pipe is connected by intermediate conduit with the left surface of two grades of hush pipes；Two grades of described hush pipes are sequentially provided with sound insulation diffusion layer B, thermal insulation layer B and internal sound-absorbing space from outside to inside, sound insulation diffusion layer B is coated on thermal insulation layer B outside, the low frequency noise reduction absorption band of multiple longitudinally spaced arrangements is provided with internal sound-absorbing space, intermediate conduit and the inlet communication in internal sound-absorbing space, the outlet in internal sound-absorbing space is connected with exhaust nozzle.The beneficial effects of the invention are as follows：Simple in construction, manufacturing cost is low, energy expenditure is low, practical.
Description
Technical field
The present invention relates to a kind of low frequency muffler.
Background technology
The working pressure range of nitrogen compressor is liquid 300Mpa, gas 90Mpa, is divided into single shaft by the pattern of axle many
Level formula, twin shaft level Four formula.
Existing nitrogen compressor system is when producing high pressure nitrogen, because its own intraware is intensive, pressurized operation
When each component between often gas is produced high temperature, while when gases at high pressure are run in conveyance conduit, meeting because of acting
Powerful low frequency noise is produced, this low frequency noise gently then makes one dizzy tired, great body that is heavy then triggering field personnel
Manage disease.Therefore, just low frequency noise reduction should be carried out to high pressure nitrogen immediately after nitrogen compressor has produced high pressure nitrogen, this is just related to
And the technical field designed to low frequency muffler structure.
At present, a collection of patented technology has been occurred in that on muffler, these patented technologies are under normal circumstances respective
All there is the ability of noise reduction in application, but the structure of these patented technologies is not quite similar, noise reduction scope is also different, has
Be applied to low frequency noise reduction, what is had is applied to high frequency noise reduction, and what is had is applied to conventional noise reduction.And many patented technologies are required for
Auxiliary noise reduction is carried out using auxiliary equipments such as electric energies, also has the complicated of some mufflers, indoor design is accurate, system
Difficulty is made, meanwhile, its erasure effect is simultaneously bad, therefore design to muffler and manufacture are still extremely necessary.
The content of the invention
It is an object of the invention to overcome the shortcoming of prior art, there is provided a kind of simple in construction, manufacturing cost is low, energy disappears
Low, the practical low frequency muffler of consumption.
The purpose of the present invention is achieved through the following technical solutions：A kind of low frequency muffler, it include one-level hush pipe and
Two grades of hush pipes, one-level hush pipe and two grades of hush pipes are cylindrical-shaped structure, and described one-level hush pipe is from inside to outside successively
Provided with deep seated blowhole passage, thermal insulation layer A, low frequency noise reduction absorbed layer A and sound insulation diffusion layer A, thermal insulation layer A, low frequency noise reduction absorbed layer A
Closely be coated on the outer surface of deep seated blowhole passage successively with sound insulation diffusion layer A, the left surface of one-level hush pipe be connected with into
Valve, suction nozzle also is provided with deep seated blowhole passage, thermal insulation layer A and sound insulation diffusion layer A, the right flank of one-level hush pipe from inside to outside
It is connected by intermediate conduit with the left surface of two grades of hush pipes；Two grades of described hush pipes are sequentially provided with sound insulation diffusion from outside to inside
Layer B, thermal insulation layer B and internal sound-absorbing space, sound insulation diffusion layer B are coated in thermal insulation layer B outside, internal sound-absorbing space provided with many
One layer of sound insulation diffusion is equipped with the low frequency noise reduction absorption band of individual longitudinally spaced arrangement, the left surface and right flank of two grades of hush pipes
Layer B, intermediate conduit and the inlet communication in internal sound-absorbing space, the outlet in internal sound-absorbing space is connected with exhaust nozzle.
Further, described intermediate conduit and the structure composition of exhaust nozzle are similar to suction nozzle.
Further, described low frequency noise reduction absorption band is non-hermetic type absorption band, and it allows to pass through gas.
The present invention has advantages below：
1st, a kind of low frequency muffler of the present invention Curve guide impeller again, its overall structure is very simple, and manufacturing cost is very low,
The low frequency noise reduction to high pressure nitrogen can be effectively realized.
2nd, a kind of low frequency muffler of the present invention also have energy expenditure it is low, it is practical the characteristics of, it is mainly adopted
With the mode of natural noise reduction, extra electric energy or other energy are not needed typically to carry out auxiliary noise reduction, meanwhile, the noise reduction of this low frequency
Device is adapted to high-volume popularization and used, and practical, application prospect is extensive.
Brief description of the drawings
Fig. 1 faces section for the present invention's（Cut-away section line is not drawn into）Structural representation；
In figure：1- one-level hush pipes, bis- grades of hush pipes of 2-, 3- suction nozzles, 4- intermediate conduits, 5- exhaust nozzles, 6- deep seated blowholes lead to
Sound-absorbing is empty inside road, 7- thermal insulation layers A, 8- low frequency noise reduction absorbed layer A, 9- sound insulation diffusion layer A, 10- low frequency noise reduction absorption band, 11-
Between, 12- thermal insulation layers B, 13- sound insulation diffusion layer B.
Embodiment
The present invention will be further described below in conjunction with the accompanying drawings, but protection scope of the present invention is not limited to following institute
State.
As shown in figure 1, a kind of low frequency muffler, it includes one-level hush pipe 1 and two grades of hush pipes 2, the He of one-level hush pipe 1
Two grades of hush pipes 2 are cylindrical-shaped structure, and described one-level hush pipe 1 is sequentially provided with deep seated blowhole passage 6 from inside to outside, heat-insulated
Layer A7, low frequency noise reduction absorbed layer A8 and sound insulation diffusion layer A9, thermal insulation layer A7, low frequency noise reduction absorbed layer A8 and sound insulation diffusion layer A9 according to
Secondary to be closely coated on the outer surface of deep seated blowhole passage 6, the left surface of one-level hush pipe 1 is connected with suction nozzle 3, suction nozzle 3
Deep seated blowhole passage 6, thermal insulation layer A7 and sound insulation diffusion layer A9 also are provided with from inside to outside, and the right flank of one-level hush pipe 1 is in
Between pipeline 4 be connected with the left surface of two grades of hush pipes 2；Two grades of described hush pipes 2 are sequentially provided with sound insulation diffusion layer from outside to inside
B13, thermal insulation layer B12 and internal sound-absorbing space 11, sound insulation diffusion layer B13 is coated on thermal insulation layer B12 outside, internal sound-absorbing space
It is provided with the low frequency noise reduction absorption band 10 of multiple longitudinally spaced arrangements, the left surface and right flank of two grades of hush pipes 2 and is all provided with 11
There are one layer of sound insulation diffusion layer B13, intermediate conduit 4 and the inlet communication in internal sound-absorbing space 11, the outlet in internal sound-absorbing space 11
Connected with exhaust nozzle 5.
Further, as the preferred embodiment of the present invention, the structure composition of intermediate conduit 4 and exhaust nozzle 5 is with entering
Valve 3 is similar；Low frequency noise reduction absorption band 10 is non-hermetic type absorption band, and it allows to pass through gas.
The installation process and use process of the present invention is as follows：By each zero of a kind of low frequency muffler of the present invention
Part equipment is installed according to the assembly relation and position relationship shown in Fig. 1, can be started after the muffler installation of this low frequency
Use.First, by high pressure nitrogen（Or other gases, this part is by taking nitrogen as an example）It is connected with suction nozzle 3, high pressure nitrogen passes through one
Level hush pipe 1, wherein, part low frequency noise is absorbed by low frequency noise reduction absorbed layer A8, and the heat of high pressure nitrogen is hindered by thermal insulation layer A7
Every, it is to avoid damage to low frequency noise reduction absorbed layer A8, low frequency noise reduction absorbed layer A8 spreads the sound being absorbed to by sound insulation
Layer A9 divergings, high pressure nitrogen is after one-level hush pipe 1, and part low frequency noise therein is absorbed, and noise intensity drops significantly
Low, then high pressure nitrogen is entered in two grades of hush pipes 2 by intermediate conduit 4, and high pressure nitrogen fills with low frequency noise reduction absorption band 10
Tap is touched, and the low frequency noise in high pressure nitrogen is vibrational energy, mechanical energy or other energy by the sorption enhanced of low frequency noise reduction absorption band 10
Measure and dissipate, eventually pass the high pressure nitrogen after low frequency noise reduction processing and discharged from exhaust nozzle 5, high pressure nitrogen now no longer has
There is low frequency noise.
Described above is only the preferred embodiment of the present invention, it should be understood that the present invention is not limited to described herein
Form, is not to be taken as the exclusion to other embodiment, and available for various other combinations, modification and environment, and can be at this
In the text contemplated scope, it is modified by the technology or knowledge of above-mentioned teaching or association area.And those skilled in the art are entered
Capable change and change does not depart from the spirit and scope of the present invention, then all should appended claims of the present invention protection domain
It is interior.
Claims (3)
1. a kind of low frequency muffler, it is characterised in that：It includes one-level hush pipe（1）With two grades of hush pipes（2）, one-level hush pipe
（1）With two grades of hush pipes（2）It is cylindrical-shaped structure, described one-level hush pipe（1）Deep seated blowhole is sequentially provided with from inside to outside
Passage（6）, thermal insulation layer A（7）, low frequency noise reduction absorbed layer A（8）With sound insulation diffusion layer A（9）, thermal insulation layer A（7）, low frequency noise reduction absorb
Layer A（8）With sound insulation diffusion layer A（9）Deep seated blowhole passage is closely coated on successively（6）Outer surface on, one-level hush pipe（1）'s
Left surface is connected with suction nozzle（3）, suction nozzle（3）Deep seated blowhole passage also is provided with from inside to outside（6）, thermal insulation layer A（7）And sound insulation
Diffusion layer A（9）, one-level hush pipe（1）Right flank pass through intermediate conduit（4）With two grades of hush pipes（2）Left surface connection；Institute
The two grades of hush pipes stated（2）Sound insulation diffusion layer B is sequentially provided with from outside to inside（13）, thermal insulation layer B（12）With internal sound-absorbing space
（11）, sound insulation diffusion layer B（13）It is coated on thermal insulation layer B（12）Outside, internal sound-absorbing space（11）It is interior to be provided between multiple longitudinal directions
Every the low frequency noise reduction absorption band of arrangement（10）, two grades of hush pipes（2）Left surface and right flank on be equipped with one layer of sound insulation diffusion
Layer B（13）, intermediate conduit（4）With internal sound-absorbing space（11）Inlet communication, internal sound-absorbing space（11）Outlet and exhaust
Mouth（5）Connection.
2. a kind of low frequency muffler according to claim 1, it is characterised in that：Described intermediate conduit（4）And exhaust nozzle
（5）Structure composition and suction nozzle（3）It is similar.
3. a kind of low frequency muffler according to claim 1, it is characterised in that：Described low frequency noise reduction absorption band（10）For
Non- hermetic type absorption band, it allows to pass through gas.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409508.0A CN107084113A (en) | 2017-06-02 | 2017-06-02 | A kind of low frequency muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409508.0A CN107084113A (en) | 2017-06-02 | 2017-06-02 | A kind of low frequency muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107084113A true CN107084113A (en) | 2017-08-22 |
Family
ID=59607865
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409508.0A Withdrawn CN107084113A (en) | 2017-06-02 | 2017-06-02 | A kind of low frequency muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107084113A (en) |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1515076A1 (en) * | 2003-09-10 | 2005-03-16 | Voss Automotive GmbH | Pneumatic blow-off silencer |
| CN2693961Y (en) * | 2004-04-28 | 2005-04-20 | 重庆力帆实业（集团）有限公司 | Two-stage muffler for ultramicro four wheeler |
| CN106762065A (en) * | 2015-11-20 | 2017-05-31 | 重庆磐达机械有限公司 | Vertical-axis generators group silencer |
| CN206753854U (en) * | 2017-06-02 | 2017-12-15 | 四川瑞晟石油设备开发有限公司 | A kind of low frequency muffler |
-
2017
- 2017-06-02 CN CN201710409508.0A patent/CN107084113A/en not_active Withdrawn
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP1515076A1 (en) * | 2003-09-10 | 2005-03-16 | Voss Automotive GmbH | Pneumatic blow-off silencer |
| CN2693961Y (en) * | 2004-04-28 | 2005-04-20 | 重庆力帆实业（集团）有限公司 | Two-stage muffler for ultramicro four wheeler |
| CN106762065A (en) * | 2015-11-20 | 2017-05-31 | 重庆磐达机械有限公司 | Vertical-axis generators group silencer |
| CN206753854U (en) * | 2017-06-02 | 2017-12-15 | 四川瑞晟石油设备开发有限公司 | A kind of low frequency muffler |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| WW01 | Invention patent application withdrawn after publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20170822 |