CN207034493U - Expanding vibrating type muffler - Google Patents
Expanding vibrating type muffler Download PDFInfo
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- CN207034493U CN207034493U CN201720999779.1U CN201720999779U CN207034493U CN 207034493 U CN207034493 U CN 207034493U CN 201720999779 U CN201720999779 U CN 201720999779U CN 207034493 U CN207034493 U CN 207034493U
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- bellows
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Abstract
It the utility model is related to a kind of expanding vibrating type muffler, including the box-like bellows of rectangular slab, one end of the bellows is provided with air inlet, the other end of bellows is provided with gas outlet, dividing box is provided with the bellows, the dividing box is in I-shaped beam texture and vertical arrangement, the air inlet and gas outlet are respectively arranged with first, second extension is extended in the both sides notch of dividing box, air enters during the first extension from air inlet, in the presence of dividing box, volume of air expands rapidly, air velocity is reduced to rapidly several times of inlet velocity, form bulking effect, inside muffler, due to the reduction of air velocity, the process resistance in labyrinth type air circulation path can effectively be offset, effectively reduce muffler circulation windage.
Description
Technical field
It the utility model is related to technical field of noise treatment, and in particular to a kind of expanding vibrating type muffler.
Background technology
Field of air conditioning and large-scale equipment, factory building, building air-supply field in, produced to eliminate in blowing device
Wind make an uproar, silencing means typically is set on the pipeline of blowing device, with reduce blow during caused noise, improve related
The comfort level that blowing device uses.Muffling device species of the prior art is a lot, but existing muffling device is used for eliminating
The frequency of noise is relatively single, the muffling device etc. of middle low frequency, high frequency noise be present, in addition, either what type of noise reduction
Equipment is when facing the larger noise of decibel, it is necessary to can be realized by the duct length for extending muffling device, therefore add and disappear
The weight and volume of sound device.
Utility model content
The purpose of this utility model is to provide a kind of expanding vibrating type muffler, can effectively eliminate making an uproar for different frequency
While sound, also the length of muffler in itself can not be increased while larger decibel noise is eliminated.
The utility model solves technical problem and adopted the following technical scheme that：
Expanding vibrating type muffler, including the box-like bellows of rectangular slab, one end of the bellows are provided with air inlet, bellows
The other end be provided with gas outlet, dividing box is provided with the bellows, the dividing box is in I-shaped beam texture and vertical cloth
Put, the air inlet and gas outlet are respectively arranged with first, second extension and extended in the both sides notch of dividing box.
Following technical characteristic also be present in the utility model：
The bellows include steel plate outside plate, and the first sound absorbing layer, first sound-absorbing are provided with the inside of the steel plate outside plate
The inner side of layer is provided with the first cover plate cloth, and the first micropunch inner panel is provided with the inside of the first cover plate cloth.
The dividing box includes the second middle sound absorbing layer, and the both sides outer wall of second sound absorbing layer, which is provided with second, to be prevented
Glass cloth is protected, the second micropunch inner panel is provided with the outside of the second cover plate cloth.
First, second extension is rectangular tubular structure, and the inner side tube wall of first, second extension is with splitting
The wing plate inner distance of case is more than or equal to the width dimensions of first, second extension, the wing plate plate end of the dividing box and wind
The distance of the madial wall of case is more than or equal to the width dimensions of first, second extension, plate face on the outside of the wing plate of the dividing box
It is more than or equal to the width dimensions of first, second extension, the wing plate width of the dividing box with the distance of the madial wall of bellows
The width dimensions of first, second extension of the size more than or equal to twice.
Compared with the prior art, the beneficial effects of the utility model are embodied in：Air enters the first extension from air inlet
During, in the presence of dividing box, volume of air expands rapidly, and air velocity is reduced to rapidly several times of inlet velocity, shape
Into bulking effect, inside muffler, due to the reduction of air velocity, labyrinth type air circulation path can be effectively offset
Process resistance, effectively reduce muffler circulation windage.
Brief description of the drawings
Fig. 1 is the surface structure schematic diagram of expanding vibrating type muffler；
Fig. 2 is the sectional view of expanding vibrating type muffler；
Fig. 3 is Fig. 2 cross sectional plan view；
Fig. 4 is the currency structure schematic diagram of air；
Fig. 5 is the sectional view of bellows tank wall；
Fig. 6 is the sectional view of dividing box.
Embodiment
Referring to figs. 1 to Fig. 6, to the architectural feature of expanding vibrating type muffler, details are as follows：
Expanding vibrating type muffler, including the box-like bellows 10 of rectangular slab, one end of the bellows 10 are provided with air inlet
11, the other end of bellows 10 is provided with gas outlet 12, and dividing box 20 is provided with the bellows 10, and the dividing box 20 is in I-shaped
Beam texture and vertical arrangement, the air inlet 11 and gas outlet 12 are respectively arranged with the extension of first, second extension 111,121
To the both sides notch of dividing box 20；
With reference to shown in Fig. 4, above-mentioned bellows 10 itself, and the cooperation of dividing box 20 and bellows 10, can be by rectangular slab box
The bellows of shape bellows 10 are divided into multiple regions, including import noise reduction region A, diffusion noise reduction region B, the first concussion noise reduction
Region C, the second concussion noise reduction region D, the 3rd concussion noise reduction region E, steady noise reduction region F, the 4th concussion noise reduction region G, the
Five concussion noise reduction region H, the 6th concussion noise reduction region I, press noise reduction region J and outlet noise reduction region K；
The web of air internally dividing box 20 is blocked under effect, and air is by the first concussion noise reduction region C, the second concussion
Noise reduction region D, the 3rd concussion noise reduction region E, steady noise reduction region F, the 4th concussion noise reduction region G, the 5th concussion noise reduction region
H, the 6th concussion noise reduction region I rows repeatedly shake noise reduction.
Air from air inlet 11 enter the first extension 111 during, volume of air expands rapidly, and air velocity is rapid
1/9 of inlet velocity or so is dropped to, forms bulking effect；
Inside muffler, due to the reduction of air velocity, the mistake in labyrinth type air circulation path can be effectively offset
Journey resistance, effectively reduce muffler circulation windage；
Due to maze-type structure unique inside muffler, make air empty by repeatedly concussion, increase in the process of circulation
Gas and abatvoix contact area and the number of oscillation, the acoustic wave energy in air consume acoustic wave energy during multiple concussion,
Reaching reduces the purpose of noise of air.
Specifically, the bellows 10 include steel plate outside plate 101, and the inner side of the steel plate outside plate 101 is provided with the first sound-absorbing
Layer 102, the inner side of first sound absorbing layer 102 are provided with the first cover plate cloth 103, in the first cover plate cloth 103
Side is provided with the first micropunch inner panel 104；
With reference to shown in Fig. 5, steel plate outside plate 101 is galvanized steel plain sheet or stainless steel plate material；First sound absorbing layer 102 is ultra-fine glass
The sound-absorbing materials such as glass cotton, glass fiber or glass wool felt；First cover plate cloth 103 is fiberglass fabric cloth；In first micropunch
Plate 104 is galvanized steel plain sheet or stainless steel plate material, and there are ￠ 3~8mm apertures on its surface, and percent opening area is than 20~30%.
Similarly, with reference to shown in Fig. 6, the dividing box 20 includes the second middle sound absorbing layer 203, second sound absorbing layer
203 both sides outer wall is provided with the second cover plate cloth 202, and the outside of the second cover plate cloth 202 is provided with
Two micropunch inner panels 201；
The arrangement of the sound-absorbing material of above-mentioned dividing box 20, can significantly improve the absorption to noise, improve the effect of noise reduction
Fruit.
Preferably, with reference to shown in Fig. 2, Fig. 3, first, second extension 111,121 is rectangular tubular structure, described
The inner side tube wall of first, second extension 111,121 prolongs with the wing plate inner distance of dividing box 20 more than or equal to first, second
The width dimensions of pipe 111,121 are stretched, the wing plate plate end of the dividing box 20 and the distance of the madial wall of bellows 10 are more than or equal to
The width dimensions of first, second extension 111,121, plate face and the madial wall of bellows 10 on the outside of the wing plate of the dividing box 20
Distance is more than or equal to the width dimensions of first, second extension 111,121, and the wing plate width dimensions of the dividing box 20 are more than
Or the width dimensions of first, second extension 111,121 equal to twice；
Dividing box 20 will be separated into some concussion noise reduction areas inside muffler, air enters from air inlet 11, disappeared in import
Sound region A carries out first time noise reduction, and air flow carries out volume to noise reduction region B, air is spread in diffusion noise reduction region B location
Expansion, air velocity drop to rapidly inlet velocity≤1/9, formed gas expansion effect；Due to the abdomen of inside division case 20
Plate occlusion effect, air carry out concussion noise reduction, air for the first time in the first concussion noise reduction region C and flow to the second concussion noise reduction region
D carries out second of concussion noise reduction, and air flow to the 3rd concussion noise reduction region E and carries out third time concussion noise reduction, and air is flow to steadily
Noise reduction region F carries out the 4th noise reduction, and air flow to the 4th concussion noise reduction region G and carries out the 5th concussion noise reduction, and air is flow to
5th concussion noise reduction region H carries out the 6th concussion noise reduction, and air flow to the 6th concussion noise reduction region I and carries out the 7th concussion and disappear
Sound, air flow to pressure noise reduction region J, because the size of gas outlet 12 reduces rapidly, causes two strands of air to be carried out in this region equal
Pressure mixing, air carry out volume contraction in outlet noise reduction region K, form contraction of gas effect.It is and last in outlet noise reduction region K
Noise reduction, discharged finally by outlet noise reduction region K gas outlet 12.
Compared with past structure, conventional muffler does not focus on muffler internal structure design and the noise reduction of sound fluctuation is former
Reason.Conventional muffler is merely by increase silencer length, to increase sound deadening capacity.Cause muffler structure bigger than normal, but noise reduction
DeGrain.
To be compared with past structure, conventional muffler is mostly direct piping shape, because the fluctuation of high frequency noise is in pencil, sound
Ripple and pipe-like conventional muffler contact surface are less or contactless, cause high frequency noise noise reduction unobvious or without decline, cause height
Frequency noise reduction failure phenomenon.
The bulking effect and blockage effect that air is internally formed in muffler, muffler is set to be internally formed an expanding chamber,
Whole muffler shakes as an acoustic muffler structure, sound wave in expansion indoor multilevel, realizes noise reduction purpose.Due to muffler
Expanding chamber principle, can effectively reduce low frequency, intermediate frequency noise.
This muffler can be used alone, can also combined serial use, realize the purpose of noise reduction step by step；
Meanwhile differentiation design is carried out to muffler inside, such as sound-absorbing material, orifice plate aperture, percent opening, steel plate wall
It is thick, number etc. is combined by wind speed, muffler, realize muffler to different frequency range, the purpose of the noise noise reduction of the different sound intensitys.
It is obvious to a person skilled in the art that the utility model is not limited to the details of above-mentioned one exemplary embodiment, and
And in the case of without departing substantially from spirit or essential attributes of the present utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, no matter from the point of view of which point, embodiment all should be regarded as exemplary, and is nonrestrictive, this practicality is new
The scope of type limits by appended claims rather than described above, it is intended that the equivalency fallen in claim is contained
All changes in justice and scope are included in the utility model.Any reference in claim should not be considered as limitation
Involved claim.
Moreover, it will be appreciated that although the present specification is described in terms of embodiments, not each embodiment is only wrapped
Containing an independent technical scheme, this narrating mode of specification is only that those skilled in the art should for clarity
Using specification as an entirety, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
It is appreciated that other embodiment.
Claims (4)
1. expanding vibrating type muffler, it is characterised in that：Including the box-like bellows of rectangular slab (10), one end of the bellows (10)
Air inlet (11) is provided with, the other end of bellows (10) is provided with gas outlet (12), dividing box is provided with the bellows (10)
(20), in I-shaped beam texture and vertical arrangement, the air inlet (11) and gas outlet (12) are set the dividing box (20) respectively
First, second extension (111,121) is equipped with to extend in the both sides notch of dividing box (20).
2. expanding vibrating type muffler according to claim 1, it is characterised in that：The bellows (10) are included outside steel plate
Plate (101), is provided with the first sound absorbing layer (102) on the inside of the steel plate outside plate (101), first sound absorbing layer (102) it is interior
Side is provided with the first cover plate cloth (103), and the first micropunch inner panel is provided with the inside of the first cover plate cloth (103)
(104)。
3. expanding vibrating type muffler according to claim 1 or 2, it is characterised in that：The dividing box (20) includes
Middle the second sound absorbing layer (203), the both sides outer wall of second sound absorbing layer (203) are provided with the second cover plate cloth
(202) the second micropunch inner panel (201), is provided with the outside of the second cover plate cloth (202).
4. expanding vibrating type muffler according to claim 3, it is characterised in that：First, second extension
(111,121) are rectangular tubular structure, inner side tube wall and the dividing box (20) of first, second extension (111,121)
Wing plate inner distance is more than or equal to the width dimensions of first, second extension (111,121), the wing plate of the dividing box (20)
The distance of plate end and the madial wall of bellows (10) is more than or equal to the width dimensions of first, second extension (111,121), described
Plate face and the distance of the madial wall of bellows (10) are more than or equal to first, second extension on the outside of the wing plate of dividing box (20)
The width dimensions of (111,121), first, second extension of the wing plate width dimensions more than or equal to twice of the dividing box (20)
Manage the width dimensions of (111,121).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720999779.1U CN207034493U (en) | 2017-08-10 | 2017-08-10 | Expanding vibrating type muffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720999779.1U CN207034493U (en) | 2017-08-10 | 2017-08-10 | Expanding vibrating type muffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207034493U true CN207034493U (en) | 2018-02-23 |
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ID=61486499
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720999779.1U Active CN207034493U (en) | 2017-08-10 | 2017-08-10 | Expanding vibrating type muffler |
Country Status (1)
| Country | Link |
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| CN (1) | CN207034493U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237953A (en) * | 2017-08-10 | 2017-10-10 | 中国扬子集团滁州扬子空调器有限公司 | Expanding vibrating type muffler |
-
2017
- 2017-08-10 CN CN201720999779.1U patent/CN207034493U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107237953A (en) * | 2017-08-10 | 2017-10-10 | 中国扬子集团滁州扬子空调器有限公司 | Expanding vibrating type muffler |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 239000 Shanghai North Road, Chuzhou, Chuzhou, Anhui Patentee after: Chuzhou Yangzi Air Conditioner Co., Ltd., China Yangzi Group Address before: 239000 Shanghai Road, Chengdong Industrial Park, Chuzhou, Anhui, 588 Patentee before: Chuzhou Yangzi Air Conditioner Co., Ltd., China Yangzi Group |
|
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 239000 Shanghai North Road, Anhui, No. 588, No. Patentee after: Anhui Yangzi Air Conditioning Co., Ltd Address before: 239000 Shanghai North Road, Anhui, No. 588, No. Patentee before: CHINA YANGZI GROUP CHUZHOU YANGZI AIR CONDITIONER Co.,Ltd. |