CN205918480U - Thermal power plant uses boiler exhaust silencer - Google Patents
Thermal power plant uses boiler exhaust silencer Download PDFInfo
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- CN205918480U CN205918480U CN201620918031.XU CN201620918031U CN205918480U CN 205918480 U CN205918480 U CN 205918480U CN 201620918031 U CN201620918031 U CN 201620918031U CN 205918480 U CN205918480 U CN 205918480U
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Abstract
The utility model relates to a thermal power plant uses boiler exhaust silencer, the silencing cap body, boiler gas outlet interface, supporting seat, wash port including two -layer cylinder form, the internal coaxial one -level silencing pot, second grade silencing pot, third grade of setting up in proper order of silencing cap hinders the acoustic shell, set up fine and closely woven wire net between one -level silencing pot and the second grade silencing pot, the third grade hinders the acoustic shell outside and sets up level four silencer, and the third grade hinders the acoustic shell top and sets up pyatyi silencer, silencing cap body upper portion sets up the exhaust aperture. The utility model discloses make high -pressure steam very weaken through flow back noise power through multistage accuse in the muffler, again through silencer with hinder the acoustic shell and can absorb the residual noise effectively, ability effective control noise be less than 60db, can effectively reduce the low frequency noise of high school than traditional muffler, high -temperature and corrosion resistance, long service life.
Description
Technical field
This utility model relates to power plant boiler apparatus field, more particularly to a kind of thermal power plant boiler exhaust deafener.
Background technology
The noise that thermal power plant's steam boiler and the discharge of steam about heat power equipment are sent can be up to 130 decibels, far
Exceed well over the numerical value that " the industrial undertaking's noise sanitary standard " that China promulgated specifies.It is that suppression high pressure draught discharge is made an uproar at present
Sound, all concatenates a deafener on exhaustor.At present deafener is roughly divided into three species on the market:
Resistive formula: mainly use sound-absorbing porous material to reduce noise.Sound-absorbing material is fixed on gas channel
Arrange in the duct on inwall or according to certain way, just constitute dissipative muffler.
Resistance formula: be to be combined by the pipe of abrupt interface and room, appear to be an acoustic filter.
Orifice type: the structure of micropole diffusor is the straight tube of an endcapped, tube wall is drilled with a lot of apertures.Aperture disappears
The principle of sound device is as foundation with the frequency spectrum of jet acoustic filter sound, and when air-flow is through small holes, the frequency spectrum of jet noise will
Shift to high frequency or hyperfrequency, make the audible sound constituent reduction in frequency spectrum, thus reducing the interference to people and injury.
But all each own pluses and minuses of three of the above deafener, carry out noise reduction using process nor well.
Utility model content
The technical problems to be solved in the utility model is: in order to solve problem present in above-mentioned background technology, provides one
Kind sound deadening capacity is big, high temperature resistant, thermal power plant that is being difficult burn into long service life boiler exhaust deafener.
This utility model solves its technical problem and be the technical scheme is that a kind of boiler exhaust noise reduction of thermal power plant
Device, includes the noise elimination cover body of two-layer cylindrical shape, boiler exhaust interface, support base, osculum；In described sound proof housing body successively
It is coaxially disposed one-level silencing pot, two grades of silencing pots, three-level resistance acoustic shells；Arrange thin between described one-level silencing pot and two grades of silencing pots
Close steel wire；Level Four muffler body is set outside described three-level resistance acoustic shell, above three-level resistance acoustic shell, arc Pyatyi muffler body is set；Institute
State noise elimination cover body top setting exhaust hole.
Further, described sound proof housing body section is in " y " type wide at the top and narrow at the bottom.
Further, described support base has 4.
Further, described osculum has 2.
This utility model produce beneficial effect be: high steam in deafener through noise power after multistage flow control
Greatly weaken, then residual noise can be effectively absorbed through muffler body and resistance acoustic shell, 60db can be less than, than biography by effective control noise
System deafener can effectively reduce senior middle school's low frequency noise, corrosion-and high-temp-resistant, long service life.
Brief description
With reference to the accompanying drawings and examples this utility model is further illustrated.
Fig. 1 is structural representation of the present utility model；
Fig. 2 is top view of the present utility model；
In figure: 1. one-level silencing pot, 2. two grades of silencing pot 3. three-levels resistance acoustic shells, 4. level Four muffler body, 5. Pyatyi noise elimination
Body, 6. steel wire, 7. exhaust hole, 8. noise elimination cover body, 9. exhaust hole, 10. boiler exhaust interface, 11. support bases.
Specific embodiment
Presently in connection with accompanying drawing, this utility model is described in further detail.These accompanying drawings are the schematic diagram of simplification,
Basic structure of the present utility model is only described in a schematic way, therefore it only shows the composition relevant with this utility model.
A kind of thermal power plant boiler exhaust deafener as shown in Figure 1, 2, includes noise elimination cover body 8, boiler exhaust interface
10th, support base 11, osculum 9；1, two grades of silencing pots 2 of one-level silencing pot, three-level resistance are sequentially coaxially set in described noise elimination cover body 8
Acoustic shell 3；Between described one-level silencing pot 1 and two grades of silencing pots 2, fine and closely woven steel wire 6 is set；The outside setting of described three-level resistance acoustic shell 3
Level Four muffler body 4, three-level resistance acoustic shell 3 top setting arc Pyatyi muffler body 5；Described noise elimination cover body top arranges exhaust hole 7.
Utility model works principle: in boiler, the high temperature and high pressure steam of discharge is through one-level silencing pot 1, fine and closely woven steel wire
6th, after the aperture dilatation blood pressure lowering noise reduction of two grades of silencing pots 2, steam sound wave enters in the numerous small holes in sound-absorbing porous material, excites
Porous material molecular vibration, makes acoustic energy in order to overcome frictional resistance and viscous force to become heat energy, that is, has reached preferable noise elimination
Effect, wherein level Four muffler body 4 and Pyatyi muffler body 5 have good absorption medium-high frequency noise, and side wall condensed water is arranged from both sides
Water hole 9 is discharged.Wherein 1, two grades of silencing pots 2 of one-level silencing pot, three-level resistance acoustic shell 3 are made using 304 rustless steels；Level Four muffler body
4th, Pyatyi muffler body 5 is made up of aluminium silicate sound absorber and waterproof glass cloth.
With above-mentioned according to desirable embodiment of the present utility model for enlightenment, by above-mentioned description, related work people
Member can carry out various change and modification completely in the range of without departing from this utility model technological thought.This reality
The content being not limited in description with new technical scope it is necessary to determine its technology according to right
Property scope.
Claims (2)
1. a kind of thermal power plant boiler exhaust deafener, includes noise elimination cover body (8), the boiler exhaust interface of two-layer cylindrical shape
(10), support base (11), osculum (9)；One-level silencing pot (1), two grades of noise eliminations are sequentially coaxially set in described noise elimination cover body (8)
Cylinder (2), three-level resistance acoustic shell (3)；Between described one-level silencing pot (1) and two grades of silencing pots (2), fine and closely woven steel wire (6) is set；Institute
State setting level Four muffler body (4) outside three-level resistance acoustic shell (3), arc shape Pyatyi muffler body is set above three-level resistance acoustic shell (3)
(5)；Described noise elimination cover body (8) top setting exhaust hole (7).
2. a kind of thermal power plant according to claim 1 with boiler exhaust deafener it is characterised in that: described noise elimination cover body
(8) section is in " y " type wide at the top and narrow at the bottom.
3. a kind of thermal power plant according to claim 1 with boiler exhaust deafener it is characterised in that: described support base
(11) there are 4.
4. a kind of thermal power plant according to claim 1 with boiler exhaust deafener it is characterised in that: described osculum (9)
There are 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620918031.XU CN205918480U (en) | 2016-08-23 | 2016-08-23 | Thermal power plant uses boiler exhaust silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620918031.XU CN205918480U (en) | 2016-08-23 | 2016-08-23 | Thermal power plant uses boiler exhaust silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205918480U true CN205918480U (en) | 2017-02-01 |
Family
ID=57871819
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620918031.XU Expired - Fee Related CN205918480U (en) | 2016-08-23 | 2016-08-23 | Thermal power plant uses boiler exhaust silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205918480U (en) |
-
2016
- 2016-08-23 CN CN201620918031.XU patent/CN205918480U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170201 Termination date: 20190823 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |