CN207004757U - A kind of Multistage muffler - Google Patents
A kind of Multistage muffler Download PDFInfo
- Publication number
- CN207004757U CN207004757U CN201720633220.7U CN201720633220U CN207004757U CN 207004757 U CN207004757 U CN 207004757U CN 201720633220 U CN201720633220 U CN 201720633220U CN 207004757 U CN207004757 U CN 207004757U
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- CN
- China
- Prior art keywords
- muffler
- hush
- low frequency
- high frequency
- sections
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Abstract
The utility model 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 connect, 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 utility model are：Manufacturing cost is low, the combination noise reduction of good muffling effect, multi-stag.
Description
Technical field
It the utility model is related to a kind of Multistage muffler.
Background technology
The working pressure range of nitrogen compressor is liquid 300Mpa, gas 90Mpa, and it is more to be divided into single shaft by the pattern of axle
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 because of acting, while when gases at high pressure are run in conveyance conduit, meeting
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, can also produce some high frequency noises, is the characteristics of this kind of noise
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 adversely affects.Therefore, exist
Nitrogen compressor has produced should just carry out noise reduction after high pressure nitrogen 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, there is a collection of patented technology 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, some is applied to high frequency noise reduction, and some 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, and 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 design and system to muffler
Make what is be still extremely necessary.
Utility model content
The shortcomings that the purpose of this utility model is to overcome prior art, there is provided a kind of manufacturing cost is low, good muffling effect,
Multi-stag combines the Multistage muffler of noise reduction.
The purpose of this utility model is achieved through the following technical solutions：A kind of Multistage muffler, it includes low frequency noise reduction
Device and high frequency muffler, the inside of low frequency muffler are divided into one section of hush pipe and two sections of hush pipes, and one section of hush pipe and two sections disappear
The structure and composition of sound cylinder is similar, and one section of hush pipe is sequentially provided with air pipe passway, thermal insulation layer, low frequency noise reduction absorbed 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 with sound insulation diffusion layer, one section
The left surface of hush pipe is connected with suction nozzle, and the right flank of two sections of hush pipes is connected with intermediate conduit, and intermediate conduit disappears with high frequency
Sound device connects；Described high frequency muffler is sequentially provided with internal sound-absorbing space, thermal insulation layer and sound insulation diffusion layer from inside to outside, internal
Airflow line is provided with sound-absorbing space, airflow line is laid out in snake type multi-stag, the import of airflow line and going out for intermediate conduit
Mouth connection, the outlet of airflow line are connected with outlet nozzle, and 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 and intermediate conduit and outlet nozzle are similar.
Further, the profile of described low frequency muffler is cylinder, and the profile of high frequency muffler is cuboid.
The utility model has advantages below：
1st, a kind of Multistage muffler described in the utility model Curve guide impeller again, manufacturing cost is low, its mainly use from
The mode of right noise reduction, be advantageous to save electric energy or other energy, while the comprehensive muffler of this multistage is adapted to high-volume popularization to use,
Practical, application prospect is extensive..
2nd, a kind of Multistage muffler described in the utility model, can be effectively real by the way of multi-stag combines noise reduction
Now to high pressure nitrogen（Or other gases）Low frequency noise reduction and high frequency noise reduction, its good muffling effect is very good, can make elevated pressure nitrogen
Just as Jing Yin when gas passes through associated conduit.
Brief description of the drawings
Fig. 1 faces section to be of the present utility model（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- tracheaes lead to
Road, 7- thermal insulation layers, 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 frequencies
Noise reduction absorption band, 13- airflow lines, 14- high frequency acoustical cottons.
Embodiment
The utility model is further described below in conjunction with the accompanying drawings, but the scope of protection of the utility model is not limited to
It is as described below.
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 connects；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 internal sound-absorbing space
Filled with high frequency acoustical cotton 14.
Further, as preferred embodiment of the present utility model, suction nozzle 3 is sequentially provided with tracheae and led to from inside to outside
Road 6, thermal insulation layer 7 and sound insulation diffusion layer 9, the structure composition and intermediate conduit 4 and outlet nozzle 5 of suction nozzle 3 are similar；Low frequency noise reduction
The profile of device 1 is cylinder, and the profile of high frequency muffler 2 is cuboid.
Installation process of the present utility model and use process are as follows：By a kind of Multistage muffler described in the utility model
Each component device is installed according to the assembly relation shown in Fig. 1 and position relationship, after the installation of this Multistage muffler
It can begin to use.First, mainly low frequency noise and high frequency noise are included in high pressure nitrogen, by high pressure nitrogen（Or other gases,
This part is by taking nitrogen as an example）Be connected with suction nozzle 3, high pressure nitrogen by low frequency muffler 1, wherein, part low frequency noise is by one
Section hush pipe 10 absorbs, and the low frequency noise also having is absorbed by two sections of hush pipes 11, and the heat of high pressure nitrogen is obstructed by thermal insulation layer 7,
The damage to low frequency noise reduction absorbed layer 8 is avoided, the sound being absorbed to is converted into it by one section of hush pipe, 10, two sections of hush pipes 11
His mechanical energy dissipative is dissipated by sound insulation diffusion layer 9, and high pressure nitrogen is after low frequency muffler 1, wherein low frequency noise base
This is absorbed, and noise intensity has substantially reduced, and then high pressure nitrogen is entered in high frequency muffler 2 by intermediate conduit 4, high pressure
Nitrogen is fully contacted by airflow line 13 with high frequency acoustical cotton 14, and the high frequency noise in high pressure nitrogen is inhaled by high frequency acoustical cotton 14
Receive and be converted into vibrational energy, mechanical energy or other energy and dissipate, finally the high pressure nitrogen after the processing of this Multistage muffler
Discharged from outlet nozzle 5, high pressure nitrogen now no longer has low frequency or high frequency noise, close to Jing Yin state.
Described above is only preferred embodiment of the present utility model, it should be understood that the utility model is not limited to herein
Disclosed form, the exclusion to other embodiment is not to be taken as, and can be used for various other combinations, modification and environment, and
It can be modified in contemplated scope described herein by the technology or knowledge of above-mentioned teaching or association area.And this area
The change and change that personnel are carried out do not depart from spirit and scope of the present utility model, then all should be in right appended by the utility model
It is required that protection domain in.
Claims (3)
- A kind of 1. 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）.
- A kind of 2. 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.
- A kind of 3. 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 |
|---|---|---|---|
| CN201720633220.7U CN207004757U (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720633220.7U CN207004757U (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207004757U true CN207004757U (en) | 2018-02-13 |
Family
ID=61446503
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720633220.7U Expired - Fee Related CN207004757U (en) | 2017-06-02 | 2017-06-02 | A kind of Multistage muffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207004757U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100825A (en) * | 2017-06-02 | 2017-08-29 | 四川瑞晟石油设备开发有限公司 | A kind of Multistage muffler |
| CN110085206A (en) * | 2019-03-27 | 2019-08-02 | 合肥雅美娜环境医疗设备有限公司 | A kind of oxygenerator muffler |
-
2017
- 2017-06-02 CN CN201720633220.7U patent/CN207004757U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107100825A (en) * | 2017-06-02 | 2017-08-29 | 四川瑞晟石油设备开发有限公司 | A kind of Multistage muffler |
| CN110085206A (en) * | 2019-03-27 | 2019-08-02 | 合肥雅美娜环境医疗设备有限公司 | A kind of oxygenerator muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190602 |