CN201318336Y - Muffler device used on fan and motor of boiler - Google Patents
Muffler device used on fan and motor of boiler Download PDFInfo
- Publication number
- CN201318336Y CN201318336Y CNU2008201556274U CN200820155627U CN201318336Y CN 201318336 Y CN201318336 Y CN 201318336Y CN U2008201556274 U CNU2008201556274 U CN U2008201556274U CN 200820155627 U CN200820155627 U CN 200820155627U CN 201318336 Y CN201318336 Y CN 201318336Y
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- China
- Prior art keywords
- housing
- anechoic
- motor
- anechoic sheet
- section housing
- 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
A muffler device used on a fan and a motor of a boiler consists of a muffler section housing and a connecting transition section housing. The muffler section housing is fixedly connected with the connecting transition section housing in the axial direction; more than two vertical anechoic sheets are arranged in the muffler section housing; any two adjacent vertical anechoic sheets are parallelly arrayed at intervals; any vertical anechoic sheet is parallel to the axial direction of the muffler section housing; an expansion chamber and a transition interface are arranged in the connecting transition section housing; more than two thick anechoic sheets and more than two thin anechoic sheets are arranged in the expansion chamber; the thick anechoic sheets are parallel to and alternates with the thin anechoic sheets; more than two quant-shaped anechoic sheets are arranged in the transition interface; and broad face segments and narrow face segments of any two adjacent quant-shaped anechoic sheets are reversely arrayed. The muffler device can reduce the noise through airflow, and reduces the noise effectively.
Description
Technical field:
The utility model relates to mechanical field, relates in particular to the blower fan damping and handles particularly a kind of silencer that is used for boiler fan, motor.
Background technique:
Noise is mostly higher when the various boiler fans that thermal power plant newly starts, airduct, motor operation, noise height when especially gas fan, primary air fan and fan motor move, and low-and high-frequency is all outstanding, and sound level is about 97～106dB (A), and the air channel airduct vibration of blower fan simultaneously also produces low frequency radiation.In thermal power plant, boiler fan part erection space is big, forms huge noise circumstance.
Summary of the invention:
The purpose of this utility model is to provide a kind of silencer that is used for boiler fan, motor, and the described this silencer that is used for boiler fan, motor will solve the technical problem that blower fan of the prior art, air channel and fan motor produce big noise.
This boiler fan that is used for of the present utility model, the silencer of motor is by a muffler section housing, plug into a changeover portion housing and a motor ventilation heat radiation sound insulation silencer cover formation, described muffler section housing is fixedlyed connected in the axial direction with the changeover portion housing of plugging into, described motor ventilation heat radiation sound insulation silencer cover is arranged on the side direction of the muffler section housing and the changeover portion housing of plugging into, wherein, be provided with the upright anechoic sheet of two above numbers in the described muffler section housing, the equal parallel interval of any two adjacent described upright anechoic sheets is arranged, any one upright anechoic sheet all is parallel to the axial of muffler section housing, be provided with a trabeculae in the muffler section housing, described trabeculae is vertical with upright anechoic sheet, be provided with an expansion chamber and a transition interface in the described changeover portion housing of plugging into, the radial cross section area of changeover portion housing of plugging into successively decreases to the outlet end of transition interface from the junction surface of expansion chamber and muffler section housing, be provided with the thick anechoic sheet of two above numbers and the thin anechoic sheet of two above numbers in the expansion chamber, described thick anechoic sheet is parallel and alternate with thin anechoic sheet, be provided with the quant shape anechoic sheet of two above numbers in the transition interface, any one described quant shape anechoic sheet connects and composes by a wide section and a leptoprosopy section, wide section of any two adjacent quant shape anechoic sheets and the equal reversed arrangement of leptoprosopy section, described motor ventilation heat radiation sound insulation silencer cover is made of the sealing cover body, described sealing cover body is provided with the air intake silencing apparatus of three above numbers, one of them directly with intake grill to the motor blower fan mouth, the top of sealing cover body is provided with ventilating fan and silencer, the sealing cover body is provided with the sound insulation door and window, be provided with noise elimination structure in the sealing cover body, sealing cover body base is provided with the steel edge sill rubber and plastic strip of paper used for sealing that the cross section is the C type.
Further, be provided with absorbent treatment on the inwall of the described muffler section housing and the changeover portion housing of plugging into.
Further, the outside wrapping of the described muffler section housing and the changeover portion housing of plugging into has the sound absorption damping layer.
Working principle of the present utility model is: muffler section housing and upright anechoic sheet wherein are as resistive section of silencing apparatus, and plug into changeover portion housing and thick anechoic sheet wherein, thin anechoic sheet and quant shape anechoic sheet are as the resistance section.Flow area amplifies to reduce drag losses in the resistance section, and flow speed control guarantees that noise reduction surpasses 20-27dB (A) under threshold state, make the one meter noise in air port about 80dB (A).The absorbent treatment of the muffler section housing and the changeover portion inner walls of plugging into further reduces the wrapping of the noise outside the sound absorption damping layer, effectively reduces vibrations.Upright anechoic sheet, thick anechoic sheet, thin anechoic sheet and quant shape anechoic sheet constitute removable, detachable movable sheet type structure by the combined type material, are convenient to unload cleaning during the overhaul, and the replacing anechoic sheet perhaps expires.Anechoic sheet realizes that wind speed divides position control, and air quantity is all gone into, and is last wind inlet noise reduction.Motor ventilation heat radiation sound insulation silencer cover is the fan motor noise reduction, adopts C shaped steel edge sill rubber and plastic strip of paper used for sealing at the bottom of the cover body, lands sealing, no leakage sound.
The utility model is compared with prior art, and its effect is actively with tangible.The utility model is provided with expansion chamber and changeover portion structure at the silencer that is used for boiler fan, motor, thin and thick anechoic sheet at interval is set in the expansion chamber, be provided with quant shape anechoic sheet in the changeover portion across, to air-flow noise-reducing from wind inlet section, motor ventilation heat radiation sound insulation silencer cover is set outside fan motor, effectively reduced noise, the noise that can realize covering outer one meter is transformed environment and is brought benefit to the people about 80dB (A).Silencing apparatus, muffler section adopt trabeculae and changeover portion to carry out the position control of wind speed branch simultaneously, have both increased acoustically effective, backflow phenomenon when having reduced air intake again.Air quantity is entered smoothly, for wind inlet has been held the noise high point.
Description of drawings:
Fig. 1 is the muffler section housing of the silencer that is used for boiler fan, motor of the present utility model and the structural representation of the changeover portion housing of plugging into.
Fig. 2 is the A-A sectional drawing of Fig. 1.
Fig. 3 is the B-B sectional drawing of Fig. 1.
Fig. 4 is the C-C sectional drawing of Fig. 1.
Fig. 5 is the structural representation of the motor ventilation heat radiation sound insulation silencer cover of the silencer that is used for boiler fan, motor of the present utility model.
Embodiment:
Embodiment 1:
As Fig. 1, Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, the boiler fan that is used for of the present utility model, the silencer of motor, by a muffler section housing 1, plug into a changeover portion housing 2 and motor ventilation heat radiation sound insulation silencer cover 5 formations, described muffler section housing 1 is fixedlyed connected in the axial direction with the changeover portion housing 2 of plugging into, described motor ventilation heat radiation sound insulation silencer cover 5 is arranged on the side direction of the muffler section housing 1 and the changeover portion housing 2 of plugging into, wherein, be provided with the upright anechoic sheet 21 of two above numbers in the described muffler section housing 1, any two adjacent described upright anechoic sheets, 21 equal parallel interval are arranged, any one upright anechoic sheet 21 all is parallel to the axial of muffler section housing 1, be provided with a trabeculae 22 in the muffler section housing 1, described trabeculae 22 is vertical with upright anechoic sheet 21, be provided with an expansion chamber 4 and a transition interface 5 in the described changeover portion housing 2 of plugging into, the radial cross section area of changeover portion housing 2 of plugging into successively decreases to the outlet end of transition interface 5 from expansion chamber 4 junction surface with muffler section housing 1, be provided with the thick anechoic sheet 31 of two above numbers and the thin anechoic sheet 32 of two above numbers in the expansion chamber 4, described thick anechoic sheet 31 is parallel and alternate with thin anechoic sheet 32, be provided with the quant shape anechoic sheet 41 of two above numbers in the transition interface 5, any one described quant shape anechoic sheet 41 connects and composes by a wide section and a leptoprosopy section, wide section of any two adjacent quant shape anechoic sheets 41 and the equal reversed arrangement of leptoprosopy section, described motor ventilation heat radiation sound insulation silencer cover 5 is made of the sealing cover body, described sealing cover body is provided with the air intake silencing apparatus 7 of three above numbers, the top of sealing cover body is provided with ventilating fan and silencer 6, the sealing cover body is provided with the sound insulation door and window, be provided with noise elimination structure in the sealing cover body, sealing cover body base is provided with the steel edge sill rubber and plastic strip of paper used for sealing that the cross section is the C type.
Further, be provided with absorbent treatment on the inwall of the described muffler section housing 1 and the changeover portion housing 2 of plugging into.
Further, the outside wrapping of the described muffler section housing 1 and the changeover portion housing 2 of plugging into has absorbent treatment.
Further, the front end of described muffler section housing 1 is connected with a rainproof block cover 3.
Claims (3)
1. one kind is used for boiler fan, the silencer of motor, by a muffler section housing, plug into a changeover portion housing and a motor ventilation heat radiation sound insulation silencer cover formation, described muffler section housing is fixedlyed connected in the axial direction with the changeover portion housing of plugging into, described motor ventilation heat radiation sound insulation silencer cover is arranged on the side direction of the muffler section housing and the changeover portion housing of plugging into, it is characterized in that: the upright anechoic sheet that is provided with two above numbers in the described muffler section housing, the equal parallel interval of any two adjacent described upright anechoic sheets is arranged, any one upright anechoic sheet all is parallel to the axial of muffler section housing, be provided with an above trabeculae in the muffler section housing, described trabeculae is vertical with upright anechoic sheet, be provided with an expansion chamber and a transition interface in the described changeover portion housing of plugging into, the radial cross section area of changeover portion housing of plugging into successively decreases to the outlet end of transition interface from the junction surface of expansion chamber and muffler section housing, be provided with the thick anechoic sheet of two above numbers and the thin anechoic sheet of two above numbers in the expansion chamber, described thick anechoic sheet is parallel and alternate with thin anechoic sheet, be provided with the quant shape anechoic sheet of two above numbers in the transition interface, any one described quant shape anechoic sheet connects and composes by a wide section and a leptoprosopy section, wide section of any two adjacent quant shape anechoic sheets and the equal reversed arrangement of leptoprosopy section, described motor ventilation heat radiation sound insulation silencer cover is made of the sealing cover body, described sealing cover body is provided with the air intake silencing apparatus of three above numbers, one of them directly with intake grill to the motor blower fan mouth, the top of sealing cover body is provided with ventilating fan and silencer, the sealing cover body is provided with the sound insulation door and window, be provided with noise elimination structure in the sealing cover body, sealing cover body base is provided with the steel edge sill rubber and plastic strip of paper used for sealing that the cross section is the C type.
2. the silencer that is used for boiler fan, motor as claimed in claim 1 is characterized in that: be provided with absorbent treatment on the inwall of the described muffler section housing and the changeover portion housing of plugging into.
3. the silencer that is used for boiler fan, motor as claimed in claim 1 is characterized in that: the outside wrapping of the described muffler section housing and the changeover portion housing of plugging into has the sound absorption damping layer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201556274U CN201318336Y (en) | 2008-11-19 | 2008-11-19 | Muffler device used on fan and motor of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201556274U CN201318336Y (en) | 2008-11-19 | 2008-11-19 | Muffler device used on fan and motor of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201318336Y true CN201318336Y (en) | 2009-09-30 |
Family
ID=41197101
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201556274U Expired - Fee Related CN201318336Y (en) | 2008-11-19 | 2008-11-19 | Muffler device used on fan and motor of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201318336Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103423209A (en) * | 2013-08-20 | 2013-12-04 | 周挺 | Novel silencing device |
| CN103807219A (en) * | 2012-11-02 | 2014-05-21 | 费希尔控制国际公司 | Valve cage having zero dead band between noise abatement and high capacity flow sections |
-
2008
- 2008-11-19 CN CNU2008201556274U patent/CN201318336Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103807219A (en) * | 2012-11-02 | 2014-05-21 | 费希尔控制国际公司 | Valve cage having zero dead band between noise abatement and high capacity flow sections |
| CN103423209A (en) * | 2013-08-20 | 2013-12-04 | 周挺 | Novel silencing device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090930 Termination date: 20111119 |