CN108930672A - A kind of noise reduction blower system of muffler and its composition - Google Patents
A kind of noise reduction blower system of muffler and its composition Download PDFInfo
- Publication number
- CN108930672A CN108930672A CN201710381648.1A CN201710381648A CN108930672A CN 108930672 A CN108930672 A CN 108930672A CN 201710381648 A CN201710381648 A CN 201710381648A CN 108930672 A CN108930672 A CN 108930672A
- Authority
- CN
- China
- Prior art keywords
- muffler
- shell
- hush pipe
- air
- air blast
- 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.)
- Pending
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Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Exhaust Silencers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses the noise reduction blower systems of a kind of muffler and its composition, belong to machinery equipment field, the muffler includes cylindrical housings, and the band neck formula ring flange for being fixed on the plate-type flange disk at shell both ends and matching with plate-type flange disk, band neck formula ring flange is fixed by bolt or clip with the board-like ring flange in shell both ends, it is characterized in that, the inner walls are coated with one layer of noise reduction antidetonation coating, it is additionally provided with cylindrical hush pipe in the shell, the acoustic damping mesh that a circle is in rugosity is also surrounded by between cylindrical hush pipe and shell.The air blast silene system further includes air blower, and the outlet of the air blower and one end of muffler are attached by pipeline, is enclosed with silencing cotton on the pipeline.The air blast silene system further includes dust-removal cloth-bag, and the dust-removal cloth-bag is fixed on the muffler other end by clip.
Description
Technical field
The invention belongs to machinery equipment field, it is related to the noise reduction blower system of a kind of muffler and its composition.
Background technique
Air blower as modern chemical industry equipment and other be related in the more processing industry of dust using more one
Kind of equipment, mainly utilizes blower rotor eccentric operating, and the blade in rotor slot is made constantly to suck air, and to air into
Row compression spues.And huge mechanical noise can occur during operating for air blower, and the air of big flow is passing through
Air generation can be made to tremble that air is made to generate huge noise after air blower compression.
Currently, muffler is many kinds of, the principle of noise reduction is also varied, exists for the air mass flow of factory
100m3/ min or so air blower when being handled without muffler its noise usually at 100-120 decibels, and pass through standard
Noise can drop to 80-90 decibels after processing, however be still that comparison is noisy at 80-90 decibels, sufficient under these conditions at long-time
To influence the physical and mental health of people.
Nowadays, the flow design of air blower is increasing, and its noise pollution is also increasingly severe therewith, and common disappears
Its noise elimination effect of sound device it is bad and installation, in terms of maintenance when dismounting bother.
Summary of the invention
It is an object of the invention to solve above-mentioned problems of the prior art, propose a kind of structure it is simple, using multiple
Close the air blast silene system of silencer mechanism, the muffler that erasure effect is good, convenient for disassembly and assembly and its composition.
In order to achieve the above technical purposes, one aspect of the present invention provides a kind of muffler, including cylindrical housings, and
The band neck formula ring flange for being fixed on the plate-type flange disk at shell both ends and matching with plate-type flange disk, band neck formula ring flange pass through
Bolt or clip are fixed with the board-like ring flange in shell both ends, and the inner walls are coated with one layer of noise reduction antidetonation coating, the shell
It is additionally provided with cylindrical hush pipe in vivo, the acoustic damping mesh that a circle is in rugosity is also surrounded by between cylindrical hush pipe and shell.
Wherein, the height of hush pipe of the present invention is less than the height of shell, and the hush pipe bottom and top are equipped with
Net is padded, the pad net is disk structure, and surface is covered with circular hole.
Wherein, hush pipe of the present invention is that hush pipe inner hole is divided into several points of holes equipped with several partitions.
Preferably, hush pipe and partition of the present invention are the interlayer of acoustic damping mesh composition, are equipped with silencing cotton inside interlayer.
Further, partition of the present invention is that radians plate structure, the arc angles of all partitions such as 3-6 block add up to
360°。
Further, the second hush pipe is also arranged among curved plate-like structure of the present invention.
Specifically, the diameter of muffler of the present invention and height are than being 1:4-8.
On the other hand, the present invention also provides a kind of air blast silene system formed using above-mentioned muffler, the air blast
Silene system further includes air blower, and the outlet of the air blower and one end of muffler are attached by pipeline, the pipe
Silencing cotton is enclosed on road.
Preferably, muffler shell diameter of the present invention is 2-5 times of the diameter of pipeline.
Wherein, air blast silene system of the present invention further includes dust-removal cloth-bag, and the dust-removal cloth-bag is fixed on by clip
The muffler other end.
Compared with prior art, the beneficial effects of the present invention are muffler structure of the present invention is simple, erasure effect
It is good, the noise reduction effect of 10-15% can be improved again on the basis of standard, simultaneously because the folding used in inventive shell
Folded shape acoustic damping mesh and the hush pipe of inside, partition, the second hush pipe divide into several air ducts for shell is intracorporal, and every
A air duct is erasure effect to be improved using the combination of multiple silencer mechanism, while above-mentioned multichannel is used in shell
Design is conducive to be dispersed trembling for air to further increase erasure effect in the case where not influencing air mass flow.
Detailed description of the invention
Fig. 1：Muffler side view of the present invention.
Fig. 2：Muffler interior view of the present invention.
In figure:1 shell, 2 band neck formula ring flanges, 3 noise reduction antidetonation coatings, 4 collapsible acoustic damping meshes, 5 hush pipes, 6 partitions, 7
Second hush pipe, 8 air blowers, 9 pipelines, 10 dust-removal cloth-bags.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, right with reference to the accompanying drawings and embodiments
The present invention is described in further detail.It should be appreciated that specific embodiment described herein is used only for explaining the present invention, and
It is not used in the restriction present invention.
Embodiment 1
Fig. 1, Fig. 2 are please referred to, a kind of muffler, including cylindrical housings 1 are present embodiments provided, and is fixed on 1 liang of shell
The plate-type flange disk at end and the band neck formula ring flange 2 to match with plate-type flange disk, band neck formula ring flange 2 pass through bolt or clip
It is fixed with the board-like ring flange in shell both ends, wherein clip is preferably used, since clip disassembly installation is more convenient, into one
Step in order to improve the sealing performance of muffler, in plate-type flange disk and with sealing ring, the shell are arranged between neck formula ring flange 2
1 inner wall of body is coated with one layer of noise reduction antidetonation coating 3, is additionally provided with cylindrical hush pipe 5 in the shell 1, cylindrical hush pipe 5 with
The acoustic damping mesh 4 that a circle is in rugosity is also surrounded by between shell 1.
Specifically, the acoustic damping mesh of the rugosity and the height of hush pipe are less than the height of shell, on the shell is intracorporal
Portion and lower part are equipped with pad net, and the pad net is disk structure, and surface is covered with circular hole, the rugosity acoustic damping mesh and noise reduction
For cylinder between upper and lower pad net, the purpose of setting pad net is that the air-flow of entry/exit shell 1 for convenience can be evenly distributed to respectively
Among channel, and it is all provided with pad net to be up and down able to satisfy muffler vertically-mounted or horizontal positioned.
Specifically, hollow structure inside is more spacious and positive alignment muffler two since hush pipe 5 is cylindrical structure
The center with neck formula ring flange at end, in order to avoid the inner hole that air-flow is directly over 5 middle part of hush pipe passes through, therefore the present embodiment
In hush pipe 5 be equipped with several partitions 6,5 inner hole of hush pipe is divided into several points of holes, so that air-flow is spread out and increase air-flow and
The contact area of quieter material reduces sound and quivers to improve erasure effect.
Wherein, the hush pipe and partition are the interlayer of acoustic damping mesh composition, silencing cotton are equipped with inside interlayer, using noise reduction
The acoustic damping mesh and partition that net and silencing cotton are composed can make the sound between acoustic damping mesh and the air-flow of partition two sides quiver shielding, prevent
Resonance, while erasure effect can be further improved in conjunction with to carry out noise reduction using acoustic damping mesh and silencing cotton, while in acoustic damping mesh
Setting silencing cotton can prevent air-flow from carrying out crossfire between different airflow channels.
Preferably, the partition in hush pipe is the radians plate structures such as 3-6 block, is further preferably 3 pieces, all partitions
Arc angle add up to 360 °, wherein hush pipe inner hole is divided into 4 parts by three pieces of partitions, is allowed to seem beautiful atmosphere, adopt simultaneously
Air-flow can be made to carry out submissive transition in flow process with arc-shaped partition.
It is further preferred that erasure effect is further increased in order to which inner hole in further hush pipe is finely divided,
The second hush pipe is also arranged among the curved plate-like structure, the second hush pipe is embedded between each partition.
Wherein, it in order to keep the air-flow into muffler more smoothly when through each airflow channel in muffler, can incite somebody to action
Hush pipe, partition, the second hush pipe lower part be set as flat, i.e., its each section successively thickens from bottom toward upper thickness, bottom
Portion is taper, guarantees that air-flow smoothly enters each airflow channel.
Specifically, the ratio between the diameter of the muffler and height are 1:4-8, wherein according to the air velocity by muffler
It is selected with throughput, noise before handling is suitble to use the ratio between diameter and height for 1 at 100 decibels or more:6-8；
Noise before handling is suitble to use the ratio between diameter and height for 1 at 100 decibels or less:4-6.
In addition, replacing with the band neck formula ring flange at muffler both ends has in order to increase the rounding at muffler both ends
The ring flange of arc-shaped transition.
Muffler structure of the present invention is simple, good muffling effect, can improve again 10- on the basis of standard
15% noise reduction effect, simultaneously because the foldings shape acoustic damping mesh and internal hush pipe that are used in inventive shell, partition, the
Two hush pipes divide into several air ducts for shell is intracorporal, and each air duct is the knot using multiple silencer mechanism
It closes to improve erasure effect, while using above-mentioned multi-passage design in shell, be conducive to the case where not influencing air mass flow
It is lower to be dispersed trembling for air to further increase erasure effect.
Embodiment 2
A kind of air blast silene system formed using above-mentioned muffler is present embodiments provided, the air blast silene system further includes
Air blower, the outlet of the air blower and one end of muffler are attached by pipeline, are enclosed with noise reduction on the pipeline
Cotton.
The muffler shell diameter is 2-5 times of the diameter of pipeline, and throughput is bigger in diameter of the housing and pipe diameter
Ratio it is bigger.
The air blast silene system further includes dust-removal cloth-bag, and it is another that the dust-removal cloth-bag by clip is fixed on muffler
End.
This system can be used for factory floor and be dusted, such as flour mill, Ci Liao factory, cement plant, plastic pipe factory
The more factory of dust content.
The above described specific embodiments of the present invention do not constitute a limitation on the scope of protection of the present invention, any basis
Any other various changes and modifications made by technical concept of the invention should be included in the guarantor of the claims in the present invention
It protects in range.
Claims (10)
1. a kind of muffler, including cylindrical housings, and be fixed on shell both ends plate-type flange disk and with plate-type flange disk
The band neck formula ring flange to match, band neck formula ring flange is fixed by bolt or clip with the board-like ring flange in shell both ends, special
Sign is that the inner walls are coated with one layer of noise reduction antidetonation coating, is additionally provided with cylindrical hush pipe in the shell, cylindrical
The acoustic damping mesh that a circle is in rugosity is also surrounded by between hush pipe and shell.
2. muffler according to claim 1, which is characterized in that the acoustic damping mesh of the rugosity and the height of hush pipe are small
In the height of shell, the intracorporal upper and lower part of shell is equipped with pad net, and the pad net is disk structure, and surface is covered with
Circular hole, the rugosity acoustic damping mesh and hush pipe are between upper and lower pad net.
3. muffler according to claim 2, which is characterized in that the hush pipe is equipped with several partitions, by hush pipe
Inner hole is divided into several points of holes.
4. muffler according to claim 3, which is characterized in that the hush pipe and partition are the folder of acoustic damping mesh composition
Layer, interlayer inside are equipped with silencing cotton.
5. muffler according to claim 4, which is characterized in that the partition is the radians plate structures such as 3-6 block, is owned
The arc angle of partition adds up to 360 °.
6. muffler according to claim 5, which is characterized in that be also arranged with second among the curved plate-like structure and disappear
Sound cylinder.
7. according to muffler described in any of the above-described claim, which is characterized in that the diameter of the muffler and height
Than being 1:4-8.
8. a kind of air blast silene system formed using muffler described in claim 7, which is characterized in that air blast noise reduction system
System further includes air blower, and the outlet of the air blower and one end of muffler are attached by pipeline, is wrapped on the pipeline
It is wrapped with silencing cotton.
9. air blast silene system according to claim 8, which is characterized in that the muffler shell diameter is the straight of pipeline
2-5 times of diameter.
10. air blast silene system according to claim 9, which is characterized in that the air blast silene system further includes dedusting
Cloth bag, the dust-removal cloth-bag are fixed on the muffler other end by clip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381648.1A CN108930672A (en) | 2017-05-26 | 2017-05-26 | A kind of noise reduction blower system of muffler and its composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710381648.1A CN108930672A (en) | 2017-05-26 | 2017-05-26 | A kind of noise reduction blower system of muffler and its composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108930672A true CN108930672A (en) | 2018-12-04 |
Family
ID=64451032
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710381648.1A Pending CN108930672A (en) | 2017-05-26 | 2017-05-26 | A kind of noise reduction blower system of muffler and its composition |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108930672A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145710A (en) * | 2019-12-26 | 2020-05-12 | 连云港江海机械设备制造有限公司 | Impedance composite muffler |
| CN111420875A (en) * | 2020-04-06 | 2020-07-17 | 李彩蓉 | Amortization dust collector for rice processing equipment |
| CN111577674A (en) * | 2020-06-19 | 2020-08-25 | 连云港市造远机械设备有限公司 | Pipeline end fan silencer |
-
2017
- 2017-05-26 CN CN201710381648.1A patent/CN108930672A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111145710A (en) * | 2019-12-26 | 2020-05-12 | 连云港江海机械设备制造有限公司 | Impedance composite muffler |
| CN111420875A (en) * | 2020-04-06 | 2020-07-17 | 李彩蓉 | Amortization dust collector for rice processing equipment |
| CN111577674A (en) * | 2020-06-19 | 2020-08-25 | 连云港市造远机械设备有限公司 | Pipeline end fan silencer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WD01 | Invention patent application deemed withdrawn after publication | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20181204 |