CN107100825A - A kind of Multistage muffler - Google Patents
A kind of Multistage muffler Download PDFInfo
- Publication number
- CN107100825A CN107100825A CN201710409495.7A CN201710409495A CN107100825A CN 107100825 A CN107100825 A CN 107100825A CN 201710409495 A CN201710409495 A CN 201710409495A CN 107100825 A CN107100825 A CN 107100825A
- Authority
- CN
- China
- Prior art keywords
- muffler
- hush
- low frequency
- high frequency
- sections
- 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
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
Abstract
The invention discloses a kind of Multistage muffler, it includes low frequency muffler and high frequency muffler, the inside of low frequency muffler is divided into one section of hush pipe and two sections of hush pipes, one section of hush pipe is sequentially provided with air pipe passway, thermal insulation layer, low frequency noise reduction absorbed layer and sound insulation diffusion layer from inside to outside, it is longitudinally spaced in the air pipe passway of two sections of hush pipes to be disposed with multiple low frequency noise reduction absorption bands, the left surface of one section of hush pipe is connected with suction nozzle, the right flank of two sections of hush pipes is connected with intermediate conduit, and intermediate conduit is connected with high frequency muffler；Described high frequency muffler is sequentially provided with internal sound-absorbing space, thermal insulation layer and sound insulation diffusion layer from inside to outside, airflow line is provided with internal sound-absorbing space, the import of airflow line and the outlet of intermediate conduit are connected, the outlet of airflow line is connected with outlet nozzle, and high frequency acoustical cotton is filled between airflow line and internal sound-absorbing space.The beneficial effects of the invention are as follows：Manufacturing cost is low, the combination noise reduction of good muffling effect, multi-stag.
Description
Technical field
The present invention relates to a kind of Multistage 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
Disease is managed, in addition, when high pressure nitrogen flows in the duct, the characteristics of also producing some high frequency noises, this kind of noise is
It is ear-piercing, the auditory perception of staff is influenceed, the sense of hearing easily to staff of going down for a long time is adversely affected.Therefore, exist
Nitrogen compressor has been produced after high pressure nitrogen should just carry out noise reduction to high pressure nitrogen immediately, including low frequency noise and high frequency noise
Noise reduction simultaneously, this relates to the technical field of Multistage muffler structure design.
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.Few energy in existing muffler
Enough disposable mufflers for completing low frequency noise and high frequency noise noise reduction simultaneously, the mode that everybody is usually taken is low frequency muffler
The mode used is respectively combined with high frequency muffler, to reach while eliminate the purpose of low frequency noise and high frequency noise, but by
It is not quite identical in low frequency muffler and the respective scope of high frequency muffler, therefore in noise reduction, it is necessary to combine specific low frequency
Muffler and high frequency muffler.Existing many patented technologies on muffler are required for using auxiliary equipments such as electric energies
To carry out auxiliary noise reduction, while some mufflers is complicated, indoor design is accurate, and manufacture is difficult, and erasure effect is poor, these
Problem all fully exposes common problem present in the patented technology of existing muffler, therefore to the design and system of muffler
Make what is be 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 manufacturing cost is low, good muffling effect, multistage
Formula combines the Multistage muffler of noise reduction.
The purpose of the present invention is achieved through the following technical solutions：A kind of Multistage muffler, it include low frequency muffler and
High frequency muffler, the inside of low frequency muffler is divided into one section of hush pipe and two sections of hush pipes, one section of hush pipe and two sections of hush pipes
Structure and composition it is similar, one section of hush pipe be sequentially provided with from inside to outside air pipe passway, thermal insulation layer, low frequency noise reduction absorbed layer and every
It is longitudinally spaced in sound diffusion layer, the air pipe passway of two sections of hush pipes to be disposed with multiple low frequency noise reduction absorption bands, one section of noise reduction
The left surface of cylinder is connected with suction nozzle, and the right flank of two sections of hush pipes is connected with intermediate conduit, intermediate conduit and high frequency muffler
Connection；Described high frequency muffler is sequentially provided with internal sound-absorbing space, thermal insulation layer and sound insulation diffusion layer, internal sound-absorbing from inside to outside
Airflow line is provided with space, airflow line is laid out in snake type multi-stag, the import of airflow line and the outlet of intermediate conduit connect
Connect, the outlet of airflow line is connected with outlet nozzle, high frequency acoustical cotton is filled between airflow line and internal sound-absorbing space.
Further, described suction nozzle is sequentially provided with air pipe passway, thermal insulation layer and sound insulation diffusion layer, air inlet from inside to outside
The structure composition of mouth is similar to intermediate conduit and outlet nozzle.
Further, the profile of described low frequency muffler is cylinder, and the profile of high frequency muffler is cuboid.
The present invention has advantages below：
1st, a kind of Multistage muffler of the present invention Curve guide impeller again, manufacturing cost is low, and it is mainly using nature noise reduction
Mode, is conducive to saving electric energy or other energy, is used while the comprehensive muffler of this multistage is adapted to high-volume popularization, practicality
By force, application prospect is extensive..
2nd, a kind of Multistage muffler of the present invention can be effectively realized pair by the way of multi-stag combination noise reduction
High pressure nitrogen（Or other gases）Low frequency noise reduction and high frequency noise reduction, its good muffling effect is very good, can lead to high pressure nitrogen
Just as Jing Yin when crossing associated conduit.
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- low frequency mufflers, 2- high frequency mufflers, 3- suction nozzles, 4- intermediate conduits, 5- outlet nozzles, 6- air pipe passways, 7-
Thermal insulation layer, 8- low frequency noise reduction absorbed layers, 9- sound insulation diffusion layers, mono- section of hush pipe of 10-, bis- sections of hush pipes of 11-, 12- low frequency noise reductions
Absorption band, 13- airflow lines, 14- high frequency acoustical cottons.
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 Multistage muffler, it includes low frequency muffler 1 and high frequency muffler 2, low frequency muffler 1
Inside is divided into the structure and composition phase of one section of hush pipe 10 and two sections of hush pipes 11, one section of hush pipe 10 and two sections of hush pipes 11
Seemingly, one section of hush pipe 10 is sequentially provided with air pipe passway 6, thermal insulation layer 7, low frequency noise reduction absorbed layer 8 and sound insulation diffusion layer from inside to outside
9, it is longitudinally spaced in the air pipe passway 6 of two sections of hush pipes 11 to be disposed with multiple low frequency noise reduction absorption bands 12, one section of hush pipe
10 left surface is connected with suction nozzle 3, and the right flank of two sections of hush pipes 11 is connected with intermediate conduit 4, and intermediate conduit 4 disappears with high frequency
Sound device 2 is connected；Described high frequency muffler 2 is sequentially provided with internal sound-absorbing space, thermal insulation layer 7 and sound insulation diffusion layer 9 from inside to outside,
Airflow line 13 is provided with internal sound-absorbing space, airflow line 13 is laid out in snake type multi-stag, and the import of airflow line 13 is with
Between pipeline 4 outlet connection, the outlet of airflow line 13 is connected with outlet nozzle 5, between airflow line 13 and inside sound-absorbing space
Filled with high frequency acoustical cotton 14.
Further, as the preferred embodiment of the present invention, suction nozzle 3 be sequentially provided with from inside to outside air pipe passway 6,
Thermal insulation layer 7 and sound insulation diffusion layer 9, the structure composition of suction nozzle 3 are similar to intermediate conduit 4 and outlet nozzle 5；Low frequency muffler 1
Profile be cylinder, the profile of high frequency muffler 2 is cuboid.
The installation process and use process of the present invention is as follows：By each zero of a kind of Multistage 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 installation of this Multistage muffler
Use.First, low frequency noise and high frequency noise are mainly included in high pressure nitrogen, by high pressure nitrogen（Or other gases, this part with
Exemplified by nitrogen）Be connected with suction nozzle 3, high pressure nitrogen by low frequency muffler 1, wherein, part low frequency noise is by one section of hush pipe
10 absorb, and the low frequency noise also having is absorbed by two sections of hush pipes 11, and the heat of high pressure nitrogen obstructed by thermal insulation layer 7, it is to avoid pair
The sound being absorbed to is converted into other mechanical energy by the damage of low frequency noise reduction absorbed layer 8, one section of hush pipe 10, two sections of hush pipes 11
Dissipate or dissipated by sound insulation diffusion layer 9, high pressure nitrogen is after low frequency muffler 1, and wherein low frequency noise is absorbed substantially,
Noise intensity has been substantially reduced, and then high pressure nitrogen is entered in high frequency muffler 2 by intermediate conduit 4, and high pressure nitrogen passes through
Airflow line 13 is fully contacted with high frequency acoustical cotton 14, and the high frequency noise in high pressure nitrogen is absorbed and converted by high frequency acoustical cotton 14
For vibrational energy, mechanical energy or other energy and dissipate, eventually pass the high pressure nitrogen after the processing of this Multistage muffler from outlet nozzle 5
Discharge, high pressure nitrogen now no longer has low frequency or high frequency noise, close to Jing Yin state.
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 Multistage muffler, it is characterised in that：It includes low frequency muffler（1）With high frequency muffler（2）, low frequency muffler
（1）Inside be divided into one section of hush pipe（10）With two sections of hush pipes（11）, one section of hush pipe（10）With two sections of hush pipes（11）'s
Structure and composition is similar, one section of hush pipe（10）Air pipe passway is sequentially provided with from inside to outside（6）, thermal insulation layer（7）, low frequency noise reduction inhale
Receive layer（8）With sound insulation diffusion layer（9）, two sections of hush pipes（11）Air pipe passway（6）It is interior it is longitudinally spaced be disposed with it is multiple low
Frequency noise reduction absorption band（12）, one section of hush pipe（10）Left surface be connected with suction nozzle（3）, two sections of hush pipes（11）Right flank
It is connected with intermediate conduit（4）, intermediate conduit（4）With high frequency muffler（2）Connection；Described high frequency muffler（2）From inside to outside
It is sequentially provided with internal sound-absorbing space, thermal insulation layer（7）With sound insulation diffusion layer（9）, airflow line is provided with internal sound-absorbing space（13）,
Airflow line（13）It is laid out in snake type multi-stag, airflow line（13）Import and intermediate conduit（4）Outlet connection, gas flow tube
Road（13）Outlet and outlet nozzle（5）Connection, airflow line（13）High frequency acoustical cotton is filled between internal sound-absorbing space
（14）.
2. a kind of Multistage muffler according to claim 1, it is characterised in that：Described suction nozzle（3）From inside to outside according to
It is secondary to be provided with air pipe passway（6）, thermal insulation layer（7）With sound insulation diffusion layer（9）, suction nozzle（3）Structure composition and intermediate conduit（4）With
Outlet nozzle（5）It is similar.
3. a kind of Multistage muffler according to claim 1, it is characterised in that：Described low frequency muffler（1）Profile
For cylinder, high frequency muffler（2）Profile be cuboid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409495.7A CN107100825A (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710409495.7A CN107100825A (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107100825A true CN107100825A (en) | 2017-08-29 |
Family
ID=59659215
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710409495.7A Withdrawn CN107100825A (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107100825A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307136A (en) * | 2018-03-20 | 2019-10-08 | 红塔烟草(集团)有限责任公司 | Vacuum pump silencing means |
| CN111197188A (en) * | 2020-03-10 | 2020-05-26 | 米霞 | Fine cotton opener with dust collector |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062535A (en) * | 1992-06-18 | 1994-01-11 | Matsushita Electric Ind Co Ltd | Exhaust emission control device for internal combustion engine |
| JP2003343236A (en) * | 2002-05-31 | 2003-12-03 | Daiko Sangyo:Kk | Low frequency sound damping method and device |
| CN1654885A (en) * | 2004-02-12 | 2005-08-17 | 熊鸿斌 | Oil smoke exhausting and ventilating composite noise eliminator |
| CN104455900A (en) * | 2014-11-28 | 2015-03-25 | 连云港正航电力节能技术有限公司 | Multifunctional composite pipe silencer |
| WO2016143605A1 (en) * | 2015-03-10 | 2016-09-15 | いすゞ自動車株式会社 | Block preventing device for exhaust pipe fuel injector |
| JP2017089597A (en) * | 2015-11-17 | 2017-05-25 | 株式会社豊田中央研究所 | Exhaust emission control device for internal combustion engine |
| CN207004757U (en) * | 2017-06-02 | 2018-02-13 | 四川瑞晟石油设备开发有限公司 | A kind of Multistage muffler |
-
2017
- 2017-06-02 CN CN201710409495.7A patent/CN107100825A/en not_active Withdrawn
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH062535A (en) * | 1992-06-18 | 1994-01-11 | Matsushita Electric Ind Co Ltd | Exhaust emission control device for internal combustion engine |
| JP2003343236A (en) * | 2002-05-31 | 2003-12-03 | Daiko Sangyo:Kk | Low frequency sound damping method and device |
| CN1654885A (en) * | 2004-02-12 | 2005-08-17 | 熊鸿斌 | Oil smoke exhausting and ventilating composite noise eliminator |
| CN104455900A (en) * | 2014-11-28 | 2015-03-25 | 连云港正航电力节能技术有限公司 | Multifunctional composite pipe silencer |
| WO2016143605A1 (en) * | 2015-03-10 | 2016-09-15 | いすゞ自動車株式会社 | Block preventing device for exhaust pipe fuel injector |
| JP2017089597A (en) * | 2015-11-17 | 2017-05-25 | 株式会社豊田中央研究所 | Exhaust emission control device for internal combustion engine |
| CN207004757U (en) * | 2017-06-02 | 2018-02-13 | 四川瑞晟石油设备开发有限公司 | A kind of Multistage muffler |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110307136A (en) * | 2018-03-20 | 2019-10-08 | 红塔烟草(集团)有限责任公司 | Vacuum pump silencing means |
| CN111197188A (en) * | 2020-03-10 | 2020-05-26 | 米霞 | Fine cotton opener with dust collector |
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|---|---|---|---|
| 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: 20170829 |