CN209444624U - The cellular silencing means of fan outlet flue - Google Patents
The cellular silencing means of fan outlet flue Download PDFInfo
- Publication number
- CN209444624U CN209444624U CN201822243007.2U CN201822243007U CN209444624U CN 209444624 U CN209444624 U CN 209444624U CN 201822243007 U CN201822243007 U CN 201822243007U CN 209444624 U CN209444624 U CN 209444624U
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- porous plate
- noise elimination
- noise
- fan outlet
- outlet flue
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Abstract
The cellular silencing means of fan outlet flue, including noise elimination porous plate, fastening outer framework, noise decibel monitoring sensor and controller, muti-piece noise elimination porous plate is arranged at intervals in fastening outer framework, noise elimination porous plate and fastening outer framework are arranged in fan outlet flue, the setting angle of noise elimination porous plate is adjustable, monitoring result is simultaneously transmitted to controller by noise decibel monitoring sensor monitoring fan outlet flue noise decibel, and controller can adjust the setting angle of noise elimination porous plate by internal logic control unit.By adjusting angle of the present apparatus noise elimination porous plate in flue, make gases flow in certain frequency range, after the noise elimination porous plate that air-flow passes through the present apparatus, the flow field in flue can be optimized, airflow noise can be made to reduce 20-35dB (decibel), loudness reduces 75%-85%.
Description
Technical field
The utility model relates to desulfurization to increase blower flue technical field of improvement, in particular to fan outlet flue is cellular
Silencing means.
Background technique
Existing fan outlet flue vibration is big, noise is big, airflow uniform distribution is bad, blower need to overcome excess resistance, existing rank
The method of Duan Caiyong is that simple dependence blower blimp handles noise, and the noise, vibration in flue are not processed.
The above-mentioned method used at this stage, the reduction fan body vibration bring that blower blimp can only be limited are made an uproar
Sound cuts little ice to fan outlet air-flow bring disturbance resistance, cannot change the flow direction of fan outlet air-flow, Bu Nengyou
Change the flow field in flue, the noise pollution at the scene of unlikely reducing brings additional wound to scene operation, service personnel's hearing
Evil, this case are exclusively used in solving the problems, such as that the vibration of fan outlet flue is big, noise is big.It is easy to make, it is easy for installation, improve O&M
The safety guarantee of personnel.
Utility model content
To overcome problems of the prior art, the utility model provides the cellular noise reduction dress of fan outlet flue
It sets.
The technical solution adopted by the utility model to solve its technical problems is that: this kind of cellular noise reduction of fan outlet flue
Device, including noise elimination porous plate, fastening outer framework, noise decibel monitoring sensor and controller, muti-piece noise elimination porous plate interval
Setting is in fastening outer framework, and noise elimination porous plate and fastening outer framework are arranged in fan outlet flue, the peace of noise elimination porous plate
Adjustable angle is filled, monitoring result is simultaneously transmitted to control by noise decibel monitoring sensor monitoring fan outlet flue noise decibel
Device, controller can adjust the setting angle of noise elimination porous plate by internal logic control unit.
Further, the control unit includes motor, shaft, bearing and sleeve, and the both ends of each noise elimination porous plate are equal
Through bearing and sleeve setting in fastening outer framework, one end of noise elimination porous plate is connected to motor by shaft and in motor band
Dynamic lower rotation.
Further, the noise elimination porous plate is the channel steel plate that cross section is V-type, is provided with several noise eliminations on noise elimination porous plate
Hole.
Further, there is Advances in Sound Absorption Polymers coating in the sound attenuation hole.
Further, the fastening outer framework uses structural carbon steel.
Further, fastening outer framework corner location is provided with reinforcing rib.
To sum up, the above-mentioned technical proposal of the utility model has the beneficial effect that:
1. by adjusting angle of the present apparatus noise elimination porous plate in flue, to make gases flow in certain frequency range
It is interior, after the noise elimination porous plate that air-flow passes through the present apparatus, the flow field in flue can be optimized, airflow noise can be made to reduce 20-35dB and (divided
Shellfish), loudness reduces 75%-85%.
2. the present apparatus has high noise elimination value and wide frequency of noise elimination, i.e., eliminated in specific frequency of noise elimination range sufficiently large
Volume.
3. the present apparatus can guarantee that air-flow passes through, the increased drag losses of institute, can be controlled in reality after device installation
In the range of allowing.
Detailed description of the invention
Fig. 1 is fan outlet flue outline drawing.
Fig. 2 is the A direction view of Fig. 1.
Fig. 3 is the cross-sectional view of B-B in Fig. 1.
Fig. 4 is the structural schematic diagram of the control unit of noise elimination porous plate.
In figure:
1 noise elimination porous plate, 2 fastening outer frameworks, 3 noise decibels monitor sensor, 4 controllers, 5 fan outlet flues, 6 electricity
Machine, 7 shafts, 8 bearings, 9 sleeves, 10 sound attenuation holes, 11 reinforcing ribs, 12 silencing means.
Specific embodiment
It is described in detail below in conjunction with feature and principle of the attached drawing to the utility model, illustrated embodiment is only used for explaining
The utility model not limits the protection scope of the utility model with this.
As shown in Figure 1-Figure 3, this kind of cellular silencing means 12 of fan outlet flue 5, including noise elimination porous plate 1, fastening
Outer framework 2, noise decibel monitor sensor 3 and controller 4 etc..
Wherein muti-piece noise elimination porous plate 1 is arranged at intervals in fastening outer framework 2, and is not interfered each other.Noise elimination porous plate 1 and
It fastens outer framework 2 to be arranged in fan outlet flue 5, fastening outer framework 2 can be bolted in fan outlet flue 5
It is interior, or be directly welded in fan outlet flue 5.
Noise decibel monitoring sensor 3 monitors 5 noise decibel of fan outlet flue and monitoring result is transmitted to controller
4, the setting angle of noise elimination porous plate 1 is adjustable, and controller 4 can adjust the setting angle of noise elimination porous plate 1 by control unit.
As shown in figure 4, control unit includes motor 6, shaft 7, bearing 8 and sleeve 9, the both ends of each noise elimination porous plate 1
Through bearing 8 and the setting of sleeve 9 in fastening outer framework 2, one end of noise elimination porous plate 1 is connect simultaneously by shaft 7 with motor 6
It is rotated under the drive of motor 6.3 real-time monitoring parameter of sensor is monitored according to noise decibel, controller 4 is by adjusting control unit
And then the rotation of noise elimination porous plate 1 is controlled, change the angle of noise elimination porous plate 1 and device fastening outer framework 2,4 basis of controller
Best angle is selected in internal logic judgement.
Noise elimination porous plate 1 is the channel steel plate that cross section is V-type, is provided with several sound attenuation holes 10 on noise elimination porous plate 1.Such as Fig. 3
It is shown, the open direction of the noise elimination porous plate 1 of V-type along flue gas flow direction side, the i.e. tip side of the noise elimination porous plate 1 of V-type just
To flue gas flow direction, resistance is reduced.
There is Advances in Sound Absorption Polymers coating in sound attenuation hole 10, is eliminated the noise using Advances in Sound Absorption Polymers.It eliminates the noise on porous impeller
The embedded circle of the composition containing N number of sound-absorbing material forms similar cellular dissipative muffler.
The robust carbon constructional quality steel of 2 material selection of outer framework is fastened, there is high temperature resistant, corrosion-resistant, humidity, resistance to
Dust function, it is light-weight, structure is simple in addition, the present apparatus is small in size, and easy to process, installation and maintenance.
The device has medium, high frequency acoustic attenuation performance, and Advances in Sound Absorption Polymers reduces air-flow excitation shell wall vibration and generates spoke
Sound is penetrated, and fastening 2 corner location of outer framework is provided with reinforcing rib 11, prevents from shaking.
Angle of the utility model by adjusting present apparatus noise elimination porous plate 1 in flue, to make gases flow certain
Frequency range in, air-flow is by that can optimize the flow field in flue, airflow noise can be made to drop after the noise elimination porous plate 1 of the present apparatus
Low 20-35dB (decibel), loudness reduce 75%-85%.
The present apparatus has high noise elimination value and wide frequency of noise elimination, i.e., eliminates in specific frequency of noise elimination range sufficiently large
Volume.
The present apparatus can guarantee that air-flow passes through, and the increased drag losses of institute, can be controlled in practical appearance after device installation
Perhaps in the range of.
Above-described embodiment is only the description carried out to preferred embodiments of the present invention, not to model of the invention
It encloses and is defined, under the premise of not departing from the spirit of the design of the utility model, relevant technical staff in the field is to the utility model
Various changes and improvements, should all expand in protection scope determined by the utility model claims book.
Claims (6)
1. the cellular silencing means of fan outlet flue, which is characterized in that including noise elimination porous plate, fastening outer framework, noise point
Shellfish monitors sensor and controller, and muti-piece noise elimination porous plate is arranged at intervals in fastening outer framework, and noise elimination porous plate and fastening are outer
Frame is arranged in fan outlet flue, and the setting angle of noise elimination porous plate is adjustable, and noise decibel monitors sensor and monitors blower
Monitoring result is simultaneously transmitted to controller by exhaust pass noise decibel, and controller can be adjusted by internal logic control unit and be eliminated the noise
The setting angle of porous plate.
2. the cellular silencing means of fan outlet flue according to claim 1, which is characterized in that the control unit packet
Motor, shaft, bearing and sleeve are included, the both ends of each noise elimination porous plate pass through bearing and sleeve setting in fastening outer framework
Interior, one end of noise elimination porous plate is connected to motor by shaft and is rotated under motor drive.
3. the cellular silencing means of fan outlet flue according to claim 1, which is characterized in that the noise elimination porous plate
For the channel steel plate that cross section is V-type, several sound attenuation holes are provided on noise elimination porous plate.
4. the cellular silencing means of fan outlet flue according to claim 3, which is characterized in that have in the sound attenuation hole
Advances in Sound Absorption Polymers coating.
5. the cellular silencing means of fan outlet flue according to claim 1, which is characterized in that the fastening outer framework
Using structural carbon steel.
6. the cellular silencing means of fan outlet flue according to claim 1, which is characterized in that fastening outer framework corner
Position is provided with reinforcing rib.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243007.2U CN209444624U (en) | 2018-12-28 | 2018-12-28 | The cellular silencing means of fan outlet flue |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201822243007.2U CN209444624U (en) | 2018-12-28 | 2018-12-28 | The cellular silencing means of fan outlet flue |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209444624U true CN209444624U (en) | 2019-09-27 |
Family
ID=68016615
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201822243007.2U Active CN209444624U (en) | 2018-12-28 | 2018-12-28 | The cellular silencing means of fan outlet flue |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209444624U (en) |
-
2018
- 2018-12-28 CN CN201822243007.2U patent/CN209444624U/en active Active
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