CN207279667U - A kind of boiler of power plant chimney silencer - Google Patents
A kind of boiler of power plant chimney silencer Download PDFInfo
- Publication number
- CN207279667U CN207279667U CN201721279231.6U CN201721279231U CN207279667U CN 207279667 U CN207279667 U CN 207279667U CN 201721279231 U CN201721279231 U CN 201721279231U CN 207279667 U CN207279667 U CN 207279667U
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- China
- Prior art keywords
- cylinder
- boiler
- noise elimination
- power plant
- groups
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- 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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Abstract
The utility model discloses a kind of boiler of power plant chimney silencer of environmental technology field,Including cylinder,The left and right ends of the cylinder offer air inlet and gas outlet respectively,The inner cavity of the cylinder is equipped with two groups of abatvoixs symmetrical above and below,And two groups of abatvoixs are connected by the outer wall of regulating device and cylinder,Silencers channel is formed between two groups of abatvoixs,And silencers channel is connected with folded plate noise elimination part,The other end exit of the folded plate noise elimination part is connected with elastic sheet,The right end of the elastic sheet is connected with adjusting screw rod,And the other end of adjusting screw rod extends to the outside of gas outlet,Using sound wave when propagating transmitting and interference occur for the utility model,Achieve the purpose that noise elimination so as to reduce acoustic energy,Achieve the purpose that noise reduction using membrane structure at the same time,The utility model is good for low-frequency band noise elimination effect,Its exhaust resistance is small,The chimney noise reduction that can be suitable for boiler of power plant uses.
Description
Technical field
Environmental technology field is the utility model is related to, is specially a kind of boiler of power plant chimney silencer.
Background technology
General boiler of power plant noise is mainly produced by combustion fan, burner injection noise and hearth combustion noise
Raw, reachable more than the 90dBA of A grade of its noise, noise is mostly based on low frequency in 200--800HZ, in broadband character, due in
Low-frequency noise propagation distance is remote, and transmission capacity is strong, thus cause it is serious to Health Impact, and currently without for 200--
The boiler chimney silencer of 800HZ Middle and low frequency noises, country are this in order to reduce to the noise of boiler also unrestricted standard
The pollution of noise, in terms of the chimney noise elimination that the other kinds of silencer to have put into operation is applied to boiler, but this mode is deposited
Noise elimination frequency band is narrow, noise elimination drag losses is big and noise elimination effect is poor, it is impossible to meet the noise elimination requirement of boiler chimney.For this reason,
Come into operation we have proposed a kind of boiler of power plant with chimney silencer, to solve the above problems.
Utility model content
The purpose of this utility model is to provide a kind of boiler of power plant chimney silencer, to solve in above-mentioned background technology
The noise elimination frequency band of it is proposed is narrow, noise elimination drag losses is big and noise elimination effect is poor, it is impossible to meets that what the noise elimination of boiler chimney required asks
Topic.
To achieve the above object, the utility model provides following technical solution：A kind of boiler of power plant chimney silencer, bag
Cylinder is included, the left and right ends of the cylinder offer air inlet and gas outlet respectively, and the inner cavity of the cylinder is equipped with about two groups
Symmetrical abatvoix, and two groups of abatvoixs are connected by the outer wall of regulating device and cylinder, and noise reduction is formed between two groups of abatvoixs
Passage, and silencers channel is connected with folded plate noise elimination part, the other end exit of the folded plate noise elimination part is connected with elastic sheet,
And elastic sheet is vertically set on the inner cavity of cylinder, the right end of the elastic sheet is connected with adjusting screw rod, and adjusting screw rod
The other end extends to the outside of gas outlet.
Preferably, the surface of the abatvoix is uniformly provided with sound-absorption hole, and the inner cavity of the abatvoix is arranged in parallel two groups
Transversely arranged porous acoustical panel.
Preferably, the regulating device includes the screw rod for running through cylinder body outer wall and the adjusting spiral shell for being socketed in screw tip
Mother, and the other end of screw rod is connected with abatvoix.
Preferably, it is additionally provided with silencing cotton on the silencers channel of the folded plate noise elimination part inner cavity.
Compared with prior art, the beneficial effects of the utility model are：The utility model is using sound wave when propagating
Transmitting and interference, so that reducing acoustic energy achievees the purpose that noise elimination, while are not absorbed using membrane structure in noise reduction process
Acoustic energy, but strong sound reflecting is formed by the change on pipeline flow wall border, achieve the purpose that noise reduction, this practicality is new
Type is good for low-frequency band noise elimination effect, its exhaust resistance is small, and the chimney noise reduction that can be suitable for boiler of power plant uses.
Brief description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the utility model acoustic board structure schematic diagram.
In figure：1 cylinder, 2 air inlets, 3 gas outlets, 4 abatvoixs, 41 sound-absorption holes, 42 porous acoustical panels, 5 regulating devices, 6
Folded plate noise elimination part, 7 elastic sheets, 8 adjusting screw rods.
Embodiment
The following is a combination of the drawings in the embodiments of the present utility model, and the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are without making creative work
All other embodiments obtained, shall fall within the protection scope of the present invention.
Please refer to Fig.1 with 2, the utility model provides a kind of technical solution：A kind of boiler of power plant chimney silencer, including
Cylinder 1, the left and right ends of the cylinder 1 offer air inlet 2 and gas outlet 3 respectively, and the inner cavity of the cylinder 1 is equipped with two groups
Symmetrical abatvoix 4 down, and two groups of abatvoixs 4 are connected by regulating device 5 with the outer wall of cylinder 1, shape between two groups of abatvoixs 4
Into silencers channel, and silencers channel is connected with folded plate noise elimination part 6, other end exit and the elasticity of the folded plate noise elimination part 6
Thin plate 7 connects, and elastic sheet 7 is vertically set on the inner cavity of cylinder 1, and the right end of the elastic sheet 7 is connected with adjusting screw rod
8, and the other end of adjusting screw rod 8 extends to the outside of gas outlet 3.
Wherein, the surface of the abatvoix 4 is uniformly provided with sound-absorption hole 41, and the inner cavity of the abatvoix 4 is arranged in parallel two
The transversely arranged porous acoustical panel 42 of group, the regulating device 5 include running through the screw rod of 1 outer wall of cylinder and are socketed in screw top
The adjusting nut at end, and the other end of screw rod is connected with abatvoix 4, is also set on the silencers channel of 6 inner cavity of folded plate noise elimination part
It is equipped with silencing cotton.
Operation principle：Chimney, which is vented, is entered the inner cavity of cylinder 1 by air inlet 2, is disappeared first by porous in abatvoix 4
Soundboard 42, makes acoustic attenuation by many tiny open channels gathered on porous acoustical panel 42, improves its acoustic absorptivity, lead to
Noise is crossed constantly to reflect sound wave and by the silencing cotton on silencing channel in folded plate noise elimination portion 6 by folded plate noise elimination portion 6 again
Sound wave is constantly absorbed, so as to achieve the purpose that noise elimination, finally by the elastic sheet 7 with certain warp architecture, and passes through adjusting
Screw rod 8 is realized to the adjustable of 7 curvature of elastic sheet, and more destructive interferences occur to the radiative acoustic wave between elastic sheet 7,
The curvature of elastic sheet 7 is bigger, and the vibration amplitude of thin plate weakens, and the ability of acoustic radiation declines, and the utility model passes through to not
The compound use of isostructural silencing apparatus, expands sound absorption model essay, has and well disappears particular for the sound wave of low-frequency band
Sound acts on.
While there has been shown and described that the embodiment of the utility model, for the ordinary skill in the art,
It is appreciated that these embodiments can be carried out with a variety of changes in the case where not departing from the principle of the utility model and spirit, repaiied
Change, replace and modification, the scope of the utility model are defined by the appended claims and the equivalents thereof.
Claims (4)
1. a kind of boiler of power plant chimney silencer, including cylinder (1), it is characterised in that：The left and right ends of the cylinder (1) point
Air inlet (2) and gas outlet (3) are not offered, the inner cavity of the cylinder (1) is equipped with two groups of abatvoixs symmetrical above and below (4), and
Two groups of abatvoixs (4) are connected by regulating device (5) with the outer wall of cylinder (1), and noise reduction is formed between two groups of abatvoixs (4) and is led to
Road, and silencers channel is connected with folded plate noise elimination part (6), the other end exit of the folded plate noise elimination part (6) and elastic sheet
(7) connect, and elastic sheet (7) is vertically set on the inner cavity of cylinder (1), the right end of the elastic sheet (7) is connected with adjusting
Screw rod (8), and the other end of adjusting screw rod (8) extends to the outside of gas outlet (3).
A kind of 2. boiler of power plant chimney silencer according to claim 1, it is characterised in that：The abatvoix (4)
Surface is uniformly provided with sound-absorption hole (41), and the inner cavity of the abatvoix (4) is arranged in parallel two groups of transversely arranged porous acoustical panels
(42)。
A kind of 3. boiler of power plant chimney silencer according to claim 1, it is characterised in that：The regulating device (5)
Including the screw rod through cylinder (1) outer wall and it is socketed in the adjusting nut of screw tip, and the other end and abatvoix of screw rod
(4) connect.
A kind of 4. boiler of power plant chimney silencer according to claim 1, it is characterised in that：The folded plate noise elimination part
(6) it is additionally provided with silencing cotton on the silencers channel of inner cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279231.6U CN207279667U (en) | 2017-09-29 | 2017-09-29 | A kind of boiler of power plant chimney silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721279231.6U CN207279667U (en) | 2017-09-29 | 2017-09-29 | A kind of boiler of power plant chimney silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207279667U true CN207279667U (en) | 2018-04-27 |
Family
ID=61987314
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721279231.6U Expired - Fee Related CN207279667U (en) | 2017-09-29 | 2017-09-29 | A kind of boiler of power plant chimney silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207279667U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
-
2017
- 2017-09-29 CN CN201721279231.6U patent/CN207279667U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111550418A (en) * | 2020-05-15 | 2020-08-18 | 杭州余杭特种风机有限公司 | Low-noise high-efficiency centrifugal blower |
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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: 20180427 |