CN207676640U - A kind of silencing apparatus of electricity generation boiler exhaust outlet - Google Patents
A kind of silencing apparatus of electricity generation boiler exhaust outlet Download PDFInfo
- Publication number
- CN207676640U CN207676640U CN201721716672.8U CN201721716672U CN207676640U CN 207676640 U CN207676640 U CN 207676640U CN 201721716672 U CN201721716672 U CN 201721716672U CN 207676640 U CN207676640 U CN 207676640U
- Authority
- CN
- China
- Prior art keywords
- expansion chambers
- exhaust outlet
- baffle
- electricity generation
- sound
- 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.)
- Expired - Fee Related
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Abstract
The utility model discloses a kind of silencing apparatus of electricity generation boiler exhaust outlet,Including suppressor case,It is provided with air inlet among the shell bottom end,It is provided with the first expansion chambers among the enclosure interior bottom end,First expansion chambers are internally provided with several the first staggered deflectors,Multiple exhaust holes are offered on the downside of the first expansion chambers left and right sidewall,It is provided with the second expansion chambers on the outside of first expansion chambers,Second expansion chambers top is provided with baffle,Baffle upper left side position is provided with gas vent,The edge of the baffle is fixed on suppressor case inner wall,It is provided with several staggered second deflectors above the baffle,The utility model is simple in structure,It is easy for assemble or unload,It is good to the assimilation effect of noise,Internal structure has good shock resistance,It can adapt to the high-speed flow environment of boiler exhaust mouth.
Description
Technical field
The utility model is related to electricity generation boiler silencing apparatus, specially a kind of silencing apparatus of electricity generation boiler exhaust outlet.
Background technology
Electricity generation boiler is exactly the boiler for generating electricity, and general capacity is larger, and present main force's unit is 600MW, relatively first at present
Into be ultra-supercritical boiler, capacity is up to 1000MW.There are two main classes for station boiler：Coal-powder boiler and circulating fluidized bed boiler.
This two classes boiler is the main Types used in current power station.The maximum difference of fluid bed furnace and coal-powder boiler is liquid and coal cinder powder
Shape.Currently, electricity generation boiler achievees the purpose that effectively to eliminate the noise through the mode frequently with discharge of steam.Due to electricity generation boiler steam discharge steam
Not only high temperature and pressure, but also bandwidth is discharged, so the erasure effect only reached with the mode of discharge steam is difficult to meet《Work
Industry enterprise noise criteria》Requirement.
Utility model content
The purpose of this utility model is to provide a kind of silencing apparatus of electricity generation boiler exhaust outlet, to solve above-mentioned background skill
The problem of being proposed in art.
To achieve the above object, the utility model provides the following technical solutions：
A kind of silencing apparatus of electricity generation boiler exhaust outlet, including suppressor case, be provided among the shell bottom end into
Gas port is provided with the first expansion chambers among the enclosure interior bottom end, and first expansion chambers are internally provided with several and interlock
First deflector of arrangement, the first expansion chambers left and right sidewall downside offer multiple exhaust holes, first expansion
Outside is provided with the second expansion chambers, and second expansion chambers top is provided with baffle, and baffle upper left side position is provided with
The edge of gas vent, the baffle is fixed on suppressor case inner wall, and being provided with several above the baffle is staggered
The second deflector, one end of second deflector is fixed on the inner wall of suppressor case, between second deflector
Form long and narrow sound absorption channel, resistance sound chamber be provided with above the sound absorption channel, be provided in the resistance sound chamber multiple resistance sound every
The edge of plate, the resistance sound partition board is fixed on the inner wall of suppressor case, is provided among the top of the suppressor case
The top of exhaust outlet, the exhaust outlet is equipped with micropore casing.
Preferably, the shell bottom end is connected with flange fixed seat, and the flange fixed seat is uniformly distributed by several
Fastening bolt with boiler exhaust is tight-lipped is solidly connected.
Preferably, sound-absorbing material, the first expansion indoor side surface and first are filled with inside first deflector
Baffle surface is respectively and fixedly provided with metal net mask.
Preferably, second baffle surface is covered with sound-absorbing material.
Preferably, the baffle surface is covered with sound-absorbing material.
Preferably, the suppressor case inner wall surface is covered with elastic rubber layer.
Compared with prior art, the utility model has the beneficial effects that：The fixed form of flange fixed seat is easy, and dismounting is held
Easily, it maintains easily；Air-flow successively by the first expansion chambers, the second expansion chambers, sound absorption channel and resistance sound chamber, is eliminated to the maximum extent
The impact force of air-flow absorbs noise；Micropore casing utilizes aperture shift frequency principle, ensures the effect for eliminating noise.The utility model
Simple in structure, easy for assemble or unload, good to the assimilation effect of noise, internal structure has good shock resistance, can
Adapt to the high-speed flow environment of boiler exhaust mouth.
Description of the drawings
Fig. 1 is a kind of structural schematic diagram of the silencing apparatus of electricity generation boiler exhaust outlet.
In figure：1- suppressor cases, the second expansion chambers of 2-, the first expansion chambers of 3-, the first deflectors of 4-, 5- exhaust holes,
6- air inlets, 7- fastening bolts, 8- flange fixed seats, 9- gas vents, 10- baffles, 11- elastic rubber layers, 12- exhaust outlets, 13-
Micropore casing, 14- hinder sound chamber, 15- resistance sound partition boards, the second deflectors of 16-, 17- sound absorptions channel.
Specific implementation mode
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
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 embodiments of the present invention, those of ordinary skill in the art are without making creative work
The every other embodiment obtained, shall fall within the protection scope of the present invention.
Referring to Fig. 1, the utility model provides a kind of technical solution：A kind of silencing apparatus of electricity generation boiler exhaust outlet, packet
Suppressor case 1 is included, air inlet 6 is provided among 1 bottom end of the shell, first is provided among 1 inner bottom of the shell
Expansion chambers 3, first expansion chambers 3 are internally provided with several the first staggered deflectors 4, first expansion chambers 3
Offering multiple exhaust holes 5 on the downside of left and right sidewall, first expansion chambers, 3 outside is provided with the second expansion chambers 2, and described the
Two expansion chambers, 2 top is provided with baffle 10, and 10 upper left side position of the baffle is provided with gas vent 9, the edge of the baffle 10
It is fixed on 1 inner wall of suppressor case, 10 top of the baffle is provided with several staggered second deflectors 16, described
One end of second deflector 16 is fixed on the inner wall of suppressor case 1, and long and narrow suction is formed between second deflector 16
Sound channel 17,17 top of the sound absorption channel are provided with resistance sound chamber 14, multiple resistance sound partition boards 15 are provided in the resistance sound chamber 14,
The edge of the resistance sound partition board 15 is fixed on the inner wall of suppressor case 1, is provided among the top of the suppressor case 1
The top of exhaust outlet 12, the exhaust outlet 12 is equipped with micropore casing 13.
1 bottom end of the shell is connected with flange fixed seat 8, and the flange fixed seat 8 is equally distributed tight by several
Fixing bolt 7 with boiler exhaust is tight-lipped is solidly connected.
First deflector, 4 inside is filled with sound-absorbing material, 3 inner surface of the first expansion chambers and the first deflector
4 surfaces are respectively and fixedly provided with metal net mask, and ruggedized construction enhances shock resistance.
Second deflector, 16 surface is covered with sound-absorbing material.
10 surface of the baffle is covered with sound-absorbing material.
1 inner wall surface of the suppressor case is covered with elastic rubber layer 11, constantly rebounds in airflow, buffers and make an uproar
Sound improves noise elimination effect.
The operation principle of the utility model is：Boiler discharge steam by air inlet 6 enter the first expansion chambers 3, and
Slowed down under the action of first deflector 4, the absorbing material that 4 inside of the first deflector is filled can tentatively remove noise；With
Air-flow enters the second expansion chambers 2 from exhaust hole 5 afterwards, and the sound-absorbing material of 10 surface of baffle covering has certain sound absorption；From
The gas that gas vent 9 is discharged enters sound absorption channel 17, and the second deflector 16 being interspersed extends air-flow and sound-absorbing material
Time of contact improves sound absorption effect, preferably reduces noise；Last air-flow enters resistance sound chamber 14, by polylith resistance sound partition board
The impact force of air-flow is eliminated in 15 blocking, also further eliminates noise；Finally it is discharged from the micropore on micropore casing 13, by
It is inversely proportional with nozzle diameter in the crest frequency of exhaust noise, if nozzle diameter becomes smaller, exhaust noise energy will be moved from low frequency
To high frequency, if row's mouth is small to certain value (as reached grade), the energy of exhaust noise will move into the insensitive frequency of human ear
Range is gone, and eliminates noise most possibly.
It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and
And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this practicality is new in other specific forms
Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this practicality is new
The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing in the equivalent requirements of the claims will be fallen
All changes in justice and range are embraced therein.Any reference numeral in claim should not be considered as limitation
Involved claim.
In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped
Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should
It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art
The other embodiment being appreciated that.
Claims (6)
1. a kind of silencing apparatus of electricity generation boiler exhaust outlet, including suppressor case (1), it is characterised in that：Shell (1) bottom
End is intermediate to be provided with air inlet (6), and the first expansion chambers (3), first expansion are provided among shell (1) inner bottom
Room (3) is internally provided with several staggered the first deflectors (4), and the first expansion chambers (3) left and right sidewall downside is
Multiple exhaust holes (5) are offered, the second expansion chambers (2), second expansion chambers are provided on the outside of first expansion chambers (3)
(2) top is provided with baffle (10), and baffle (10) the upper left side position is provided with gas vent (9), the side of the baffle (10)
Edge is fixed on suppressor case (1) inner wall, several staggered second deflectors are provided with above the baffle (10)
(16), one end of second deflector (16) is fixed on the inner wall of suppressor case (1), second deflector (16) it
Between form long and narrow sound absorption channel (17), resistance sound chamber (14), the resistance sound chamber (14) are provided with above the sound absorption channel (17)
In be provided with multiple resistance sound partition boards (15), the edge of the resistance sound partition board (15) is fixed on the inner wall of suppressor case (1), institute
It states and is provided with exhaust outlet (12) among the top of suppressor case (1), the top of the exhaust outlet (12) is equipped with micropore casing
(13)。
2. a kind of silencing apparatus of electricity generation boiler exhaust outlet according to claim 1, it is characterised in that：The shell (1)
Bottom end is connected with flange fixed seat (8), and the flange fixed seat (8) passes through several equally distributed fastening bolts (7) and pot
Heater exhaust is tight-lipped to be solidly connected.
3. a kind of silencing apparatus of electricity generation boiler exhaust outlet according to claim 1, it is characterised in that：First water conservancy diversion
Sound-absorbing material is filled with inside plate (4), the first expansion chambers (3) inner surface and the first deflector (4) surface are respectively and fixedly provided with
Metal net mask.
4. a kind of silencing apparatus of electricity generation boiler exhaust outlet according to claim 1, it is characterised in that：Second water conservancy diversion
Plate (16) surface is covered with sound-absorbing material.
5. a kind of silencing apparatus of electricity generation boiler exhaust outlet according to claim 1, it is characterised in that：The baffle (10)
Surface is covered with sound-absorbing material.
6. a kind of silencing apparatus of electricity generation boiler exhaust outlet according to claim 1, it is characterised in that：The silencer shell
Body (1) inner wall surface is covered with elastic rubber layer (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721716672.8U CN207676640U (en) | 2017-12-11 | 2017-12-11 | A kind of silencing apparatus of electricity generation boiler exhaust outlet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721716672.8U CN207676640U (en) | 2017-12-11 | 2017-12-11 | A kind of silencing apparatus of electricity generation boiler exhaust outlet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207676640U true CN207676640U (en) | 2018-07-31 |
Family
ID=62968951
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721716672.8U Expired - Fee Related CN207676640U (en) | 2017-12-11 | 2017-12-11 | A kind of silencing apparatus of electricity generation boiler exhaust outlet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207676640U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346050A (en) * | 2018-09-17 | 2019-02-15 | 南京邮电大学 | A kind of wide frequency acoustic absorber with folding space |
| CN110578671A (en) * | 2019-09-23 | 2019-12-17 | 云南玉溪玉昆钢铁集团有限公司 | High-voltage sound-deadening box |
-
2017
- 2017-12-11 CN CN201721716672.8U patent/CN207676640U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109346050A (en) * | 2018-09-17 | 2019-02-15 | 南京邮电大学 | A kind of wide frequency acoustic absorber with folding space |
| CN110578671A (en) * | 2019-09-23 | 2019-12-17 | 云南玉溪玉昆钢铁集团有限公司 | High-voltage sound-deadening box |
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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 |
Granted publication date: 20180731 Termination date: 20181211 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |