CN207634893U - A kind of winding type pipeline silencer - Google Patents

A kind of winding type pipeline silencer Download PDF

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Publication number
CN207634893U
CN207634893U CN201721813762.9U CN201721813762U CN207634893U CN 207634893 U CN207634893 U CN 207634893U CN 201721813762 U CN201721813762 U CN 201721813762U CN 207634893 U CN207634893 U CN 207634893U
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China
Prior art keywords
noise
reducing structure
resistive
pipeline
resistive noise
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CN201721813762.9U
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Chinese (zh)
Inventor
曹文峰
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Chengdu Qi Chuanyou Health Environmental Protection Technology Co Ltd
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Chengdu Qi Chuanyou Health Environmental Protection Technology Co Ltd
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Priority to CN201721813762.9U priority Critical patent/CN207634893U/en
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Abstract

A kind of winding type pipeline silencer, including shell, there is noise elimination pipeline in shell, noise elimination lower end of duct has air inlet, there is exhaust outlet in noise elimination pipeline upper end, there is the first resistive noise-reducing structure between air inlet and exhaust outlet successively, second resistive noise-reducing structure, the resistive noise-reducing structure of third, 4th resistive noise-reducing structure, there is the first expanding chamber between first resistive noise-reducing structure and the second resistive noise-reducing structure, there is the second expanding chamber between second resistive noise-reducing structure and the resistive noise-reducing structure of third, there is third expanding chamber between the resistive noise-reducing structure of third and the 4th resistive noise-reducing structure, there is the first quieter material filled layer in the gap of shell and silencing pipeline, second quieter material filled layer, third quieter material filled layer.It is designed using winding type and extends noise elimination length of tube, noise reduction is carried out using impedance combination quieter manner, the apparatus structure is simple, and reasonable design substantially increases noise reduction.

Description

A kind of winding type pipeline silencer
Technical field
The utility model is related to internal combustion engine ventilation shaft silencer more particularly to a kind of winding type pipeline silencers.
Background technology
In recent years, country increasingly payes attention to environmental problem, and the noise pollution of diesel locomotive is always urgently to change Into the problem of.Internal combustion engine ventilation shaft silencer abbreviation silencer, be prevent sound transmission and allow air-flow by a kind of dress It sets.
Existing apparatus designs resistance noise reduction pipe range first since exhaust outlet falls short of apart from locomotive air inlet system direction distance Degree is insufficient, secondly still to be improved in noise-reducing design, then noise reduction will not be very big, therefore, need to be improved to the design, To meet the needs of existing locomotive noise reduction.
Utility model content
The utility model provides a kind of winding type pipeline silencer, to solve above-mentioned the deficiencies in the prior art, improves noise reduction Effect has stronger practicability.
In order to realize the purpose of this utility model, intend using following technology:
A kind of winding type pipeline silencer, including shell have noise elimination pipeline, the noise elimination lower end of duct to have in the shell There are exhaust outlet in air inlet, noise elimination pipeline upper end, have successively between the air inlet and exhaust outlet the first resistive noise-reducing structure, Second resistive noise-reducing structure, the resistive noise-reducing structure of third, the 4th resistive noise-reducing structure, the first resistive noise-reducing structure and second There is the first expanding chamber between resistive noise-reducing structure, has second between the second resistive noise-reducing structure and the resistive noise-reducing structure of third Expanding chamber has third expanding chamber, the shell and noise reduction between the resistive noise-reducing structure of the third and the 4th resistive noise-reducing structure There are the first quieter material filled layer, the second quieter material filled layer, third quieter material filled layer in the gap of pipeline.
As the preferred embodiment of the utility model, the silencing pipeline is winding type structure.
As the preferred embodiment of the utility model, having at the shell and silencing pipeline cladding has straight bar reinforcing ribs, institute The joining place for stating shell and air inlet, exhaust outlet has " L " type reinforcing rib.
As the preferred embodiment of the utility model, the first resistive noise-reducing structure is made of several abatvoixs, the suction Soundboard is fixed on by connection strap on silencing pipeline.
The advantages of above-mentioned technical proposal, is:
1, the utility model is using level Four resistive noise reduction design, silencing pipeline set gradually the first resistive noise-reducing structure, Second resistive noise-reducing structure, the resistive noise-reducing structure of third, the 4th resistive noise-reducing structure, carry out the sound-deadening and noise-reducing of middle and high frequency range, effect Fruit is good.
2, the utility model has the first expanding chamber, the second expanding chamber, third expanding chamber, three-level swollen in silencing pipeline turning point Swollen room constitutes the reactive muffling system of silencing pipeline, can reduce low-frequency noise.
3, the utility model silencing pipeline uses circuitous configuration, solves exhaust outlet apart from locomotive air inlet system direction apart from not Enough long problems can extend effective length, increase noise reduction.
4, having at the shell of the utility model and silencing pipeline cladding has straight bar reinforcing ribs, shell and air inlet, exhaust The joining place of mouth has " L " type reinforcing rib, adapts to the high vibration of operation environment, the stability of intensifier.
5, there are quieter material filled layer in the shell of the utility model and the gap of silencing pipeline, further enhance noise reduction effect Fruit.
Description of the drawings
In order to keep the purpose of this utility model, technical solution and advantage clearer, below in conjunction with attached drawing to this practicality It is novel to be described in further detail.Wherein:
Fig. 1 shows the utility model of the whole structure diagram.
Description of the drawings:1, air inlet;2, the first resistive noise-reducing structure;3, connection strap;4, abatvoix;5, the first expanding chamber; 6, the first quieter material filled layer;7, the second resistive noise-reducing structure;8, the second expanding chamber;9, the second quieter material filled layer;10、 Shell;11, third quieter material filled layer;12, the resistive noise-reducing structure of third;13, third expanding chamber;14, the 4th resistive noise reduction Structure;15, exhaust outlet;16, " L " type reinforcing rib;17, straight bar reinforcing ribs;18, silencing pipeline.
Specific implementation mode
As shown in Figure 1, the utility model provides a kind of technical solution:A kind of winding type pipeline silencer, including shell 10, There are noise elimination pipeline 18,18 lower end of noise elimination pipeline to there is air inlet 1,18 upper end of noise elimination pipeline to have exhaust outlet 15, air inlet in the shell 1 There are the first resistive noise-reducing structure 2, the second resistive noise-reducing structure 7, the resistive noise-reducing structure of third successively between mouth 1 and exhaust outlet 15 12, the 4th resistive noise-reducing structure 14 has the first expanding chamber 5 between first resistive noise-reducing structure 2 and the second resistive noise-reducing structure 7, There are the second expanding chamber 8, the resistive noise-reducing structure 12 of third and between second resistive noise-reducing structure 7 and the resistive noise-reducing structure of third 12 There is third expanding chamber 13 between four resistive noise-reducing structures 14, the gap of shell 10 and silencing pipeline 18 has the first quieter material to fill out Fill layer 6, the second quieter material filled layer 9, third quieter material filled layer 11.
Silencing pipeline 18 is winding type structure.
Having at shell 10 and 18 cladding of silencing pipeline has straight bar reinforcing ribs 17, shell 10 and air inlet 1, exhaust outlet 15 Joining place has " L " type reinforcing rib 16.
First resistive noise-reducing structure 2 is made of several abatvoixs 4, and the abatvoix 4 is fixed on hush pipe by connection strap 3 On road 18.
The operation principle of the utility model is:
Noise enters silencing pipeline 18 by air inlet 1, passes sequentially through the first resistive noise-reducing structure 2, the second resistive noise reduction The resistive silene system of level Four that the resistive noise-reducing structure 12 of structure 7, third, the 4th resistive noise-reducing structure 14 are constituted, in can carrying out, The sound-deadening and noise-reducing of high band, works well, and has the first expansion between the first resistive noise-reducing structure 2 and the second resistive noise-reducing structure 7 , there is the second expanding chamber 8 in room 5 between the second resistive noise-reducing structure 7 and the resistive noise-reducing structure of third 12, the resistive noise-reducing structure of third 12 There is third expanding chamber 13 between the 4th resistive noise-reducing structure 14, noise is in the reactive muffling system being made up of three-level expanding chamber When, low-frequency noise can be reduced.
Preferably, silencing pipeline 18 uses circuitous configuration, solves exhaust outlet 15 apart from locomotive air inlet system direction apart from not Enough long problems can extend effective length, increase noise reduction.
Preferably, having at shell 10 and 18 cladding of silencing pipeline has straight bar reinforcing ribs 17, shell 10 and air inlet 1, row The joining place of gas port 15 has " L " type reinforcing rib 16, adapts to the high vibration of operation environment, the stability of intensifier.
Preferably, there are quieter material filled layer in shell 10 and the gap of silencing pipeline 18, further enhance erasure effect.
The above is only the preferred embodiment of the present invention, is not intended to limit the utility model, it is clear that this field Technical staff spirit and scope of the various modification and variations without departing from the utility model can be carried out to the utility model.This Sample, if these modifications and variations of the present invention belong to the claims of the present invention and its equivalent technology range it Interior, then the utility model is also intended to include these modifications and variations.

Claims (3)

1. a kind of winding type pipeline silencer, which is characterized in that including shell(10), the shell(10)Inside there is noise elimination pipeline (18), the noise elimination pipeline(18)There is air inlet in lower end(1), the noise elimination pipeline(18)There is exhaust outlet in upper end(15), it is described into Gas port(1)With exhaust outlet(15)Between have the first resistive noise-reducing structure successively(2), the second resistive noise-reducing structure(7), third it is resistive Noise-reducing structure(12), the 4th resistive noise-reducing structure(14), the first resistive noise-reducing structure(2)With the second resistive noise-reducing structure (7)Between have the first expanding chamber(5), the second resistive noise-reducing structure(7)With the resistive noise-reducing structure of third(12)Between have Two expanding chambers(8), the resistive noise-reducing structure of third(12)With the 4th resistive noise-reducing structure(14)Between have third expanding chamber (13), the shell(10)With silencing pipeline(18)Gap have the first quieter material filled layer(6), the second quieter material fills out Fill layer(9), third quieter material filled layer(11), the shell(10)With silencing pipeline(18)There are straight bar reinforcing ribs at cladding (17), the shell(10)With air inlet(1), exhaust outlet(15)Joining place have " L " type reinforcing rib(16).
2. a kind of winding type pipeline silencer according to claim 1, which is characterized in that the silencing pipeline(18)It is circuitous Return formula structure.
3. a kind of winding type pipeline silencer according to claim 1, which is characterized in that the first resistive noise-reducing structure (2)By several abatvoixs(4)Composition, the abatvoix(4)Pass through connection strap(3)It is fixed on silencing pipeline(18)On.
CN201721813762.9U 2017-12-22 2017-12-22 A kind of winding type pipeline silencer Active CN207634893U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721813762.9U CN207634893U (en) 2017-12-22 2017-12-22 A kind of winding type pipeline silencer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721813762.9U CN207634893U (en) 2017-12-22 2017-12-22 A kind of winding type pipeline silencer

Publications (1)

Publication Number Publication Date
CN207634893U true CN207634893U (en) 2018-07-20

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020258915A1 (en) * 2019-06-26 2020-12-30 深圳市倍轻松科技股份有限公司 Air discharge noise reduction device and wearable apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020258915A1 (en) * 2019-06-26 2020-12-30 深圳市倍轻松科技股份有限公司 Air discharge noise reduction device and wearable apparatus

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