CN206159127U - Fan silencer - Google Patents
Fan silencer Download PDFInfo
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- CN206159127U CN206159127U CN201621228254.XU CN201621228254U CN206159127U CN 206159127 U CN206159127 U CN 206159127U CN 201621228254 U CN201621228254 U CN 201621228254U CN 206159127 U CN206159127 U CN 206159127U
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- Prior art keywords
- muffler
- air devider
- cone shell
- rear end
- round
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Abstract
The utility model relates to a fan silencer, including the fan silencer casing, the fan silencer casing includes muffler inner wall and muffler outer wall, the fan silencer casing is the cylinder, it has soft sound absorbing material to fill between muffler inner wall and the muffler outer wall, fan silencer casing both ends are provided with the flange, the fan silencer casing is provided with the muffler cavity, be provided with first minute wind ware in the muffler cavity of right side flange inboard, the left side of first minute wind ware is provided with the second and divides the wind ware, it divides the wind ware to be provided with the third in the muffler cavity of left side flange inboard. The utility model discloses fan silencer forms refraction, reflects to fall the noise that gets into through three minute wind ware and makes an uproar many times, simple structure, and it is convenient to install, dismantle, and the noise reduction effect is obvious, and fan silencer loss of pressure is not more than 450Pa, and is the amortization volume 20 45dB (A).
Description
Technical field
The utility model is related to a kind of muffler, is to be related to a kind of muffler for fan specifically.
Background technology
Blower fan produces a large amount of noises during running up, and existing muffler for fan complex structure, maintenance cost is high,
Erasure effect is poor.
Utility model content
For above-mentioned deficiency of the prior art, the utility model provides a kind of simple structure, and installation, convenient disassembly have
Effect reduces the muffler for fan of fan operation noise.
Technical solution adopted in the utility model is：
A kind of muffler for fan, including muffler for fan housing,
Muffler for fan housing includes muffler inwall and muffler outer wall；
Muffler for fan housing is cylindrical；
Soft sound-absorbing material is filled between muffler inwall and muffler outer wall；
Muffler for fan housing two ends are provided with flange；
Muffler for fan housing is provided with muffler cavity；
The first air devider is provided with muffler chamber body on the inside of right flange；
The second air devider is provided with the left of first air devider；
The 3rd air devider is provided with muffler chamber body on the inside of the flange of left side；
Muffler inwall is made up of round-hole punched plate；
First air devider is cone shell；
First air devider front end closed rear end opening；
Area of the area of the first air devider front-end cross-sectional view less than cross sectional rear end face；
First air devider leading head is Surface of Sphere；
Soft sound-absorbing material is filled with first air devider；
Closed by round-hole punched plate at first air devider open rearward end；
Three/mono- to a quarter of a diameter of muffler inner diameter in the first air devider rear end；
First air devider rear portion is connected by connecting plate with muffler inwall；
Second air devider be made up of two cone shells including：First cone shell and the second cone shell are constituted；
First cone shell front end closed rear end opening；
Area of the area of the first cone shell front-end cross-sectional view less than cross sectional rear end face；
First cone shell leading head is Surface of Sphere；
First cone shell leading head is filled with soft sound-absorbing material；
Closed by round-hole punched plate in the outside of the first cone shell leading head filled soft sound-absorbing material；
First cone shell is made up of round-hole punched plate；
The rear end of the first cone shell is connected with the second cone shell rear end；
Second cone shell front end is connected with muffler inwall；
Second cone shell front-end cross-sectional view product is more than cross sectional rear end area；
Second cone shell is made up of round-hole punched plate；
3rd air devider is cone shell；
3rd air devider front end closed rear end opening；
Area of the area of the 3rd air devider front-end cross-sectional view less than cross sectional rear end face；
3rd air devider leading head is Surface of Sphere；
3rd air devider leading head is filled with soft sound-absorbing material；
Closed by round-hole punched plate in the outside of the 3rd air devider leading head filled soft sound-absorbing material；
3rd air devider centrum is made up of round-hole punched plate；
3rd air devider rear end is connected with muffler inwall.
The beneficial effect of the utility model hinge structure：
The utility model muffler for fan, by three air deviders multiple refraction, reflection drop are formed to the noise for entering
Make an uproar, simple structure, installation, convenient disassembly reduce noise result substantially, and the muffler for fan pressure loss is not more than 450Pa, noise reduction
Measure as 20-45dB (A).
Description of the drawings
Fig. 1 is the structural representation of the utility model muffler for fan.
Critical piece symbol description in accompanying drawing：
In figure：
1st, muffler inwall 2, muffler outer wall
3rd, soft sound-absorbing material 4, flange
5th, the first air devider 6, the second air devider
61st, the first cone shell 62, the second cone shell
7th, the 3rd air devider 8, connecting plate.
Specific embodiment
Referring to the drawings and embodiment is described in detail to the utility model：
Knowable to accompanying drawing 1, a kind of muffler for fan, including muffler for fan housing,
Muffler for fan housing includes muffler inwall 1 and muffler outer wall 2；
Muffler for fan housing is cylindrical；
Soft sound-absorbing material 3 is filled between muffler inwall 1 and muffler outer wall 2；
Muffler for fan housing two ends are respectively arranged with flange 4；
Muffler for fan housing is provided with muffler cavity；
The first air devider 5 is provided with the muffler chamber body of the inner side of right flange 4；
The left side of the first air devider 5 is provided with the second air devider 6；
The 3rd air devider 7 is provided with the muffler chamber body of the inner side of left side flange 4；
Muffler inwall 1 is made up of round-hole punched plate；
First air devider 5 is cone shell；
The front end closed rear end opening of first air devider 5；
Area of the area of the front-end cross-sectional view of the first air devider 5 less than cross sectional rear end face；
The leading head of first air devider 5 is Surface of Sphere；
Soft sound-absorbing material 3 is filled with first air devider 5；
Closed by round-hole punched plate at the open rearward end of first air devider 5；
Three/mono- to a quarter of a diameter of muffler inner diameter in the rear end of the first air devider 5；
The rear portion of first air devider 5 is connected by connecting plate 8 with muffler inwall 1；
Second air devider 6 be made up of two cone shells including：First cone shell 61 and the second cone shell 62 are constituted；
The front end closed rear end opening of first cone shell 61；
Area of the area of the front-end cross-sectional view of the first cone shell 61 less than cross sectional rear end face；
The leading head of first cone shell 61 is Surface of Sphere；
The leading head of first cone shell 61 is filled with soft sound-absorbing material 3；
Closed by round-hole punched plate in the outside of the leading head filled soft sound-absorbing material of the first cone shell 61；
First cone shell 61 is made up of round-hole punched plate；
The rear end of the first cone shell 61 is connected with the rear end of the second cone shell 62；
The front end of second cone shell 62 is connected with muffler inwall 1；
The front-end cross-sectional view of second cone shell 62 product is more than cross sectional rear end area；
Second cone shell 62 is made up of round-hole punched plate；
3rd air devider 7 is cone shell；
The front end closed rear end opening of 3rd air devider 7；
Area of the area of the front-end cross-sectional view of the 3rd air devider 7 less than cross sectional rear end face；
The leading head of 3rd air devider 7 is Surface of Sphere；
The leading head of 3rd air devider 7 is filled with soft sound-absorbing material 3；
Closed by round-hole punched plate in the outside of the leading head filled soft sound-absorbing material 3 of the 3rd air devider 7；
Centrum is made up of 3rd air devider 7 round-hole punched plate；
The rear end of 3rd air devider 7 is connected with muffler inwall
Arrow is wind direction mark in accompanying drawing 1, and wind is moved from right to left.
Wind is entered after muffler by right-hand member flange, and the first air devider cone inside is full of soft sound-absorbing material and uses round-hole mesh
Plate is sealed, in order to avoid producing noise again, initially encounters the first air devider, situations below occurs：1st, air flow change rapidly, office
Portion is disorderly；2nd, partial noise is reflected, is reflected by the outer surface of the first air devider；3rd, wind direction surrounding is spread and inner chamber leads to
Wind sectional area expands rapidly；4th, partial air molecule is touched by the round-hole punched plate of inboard wall of skeleton with soft sound-absorbing material.
Based on above-mentioned 4 noises by partial reduction.
The channel cross-section of wind wind after the first air devider is expanding, then by the second air devider；Second air devider end
End socket is made up at other positions of steel plate of round-hole punched plate, and end socket portion is sealed full of soft sound-absorbing material and with round-hole punched plate, in order to avoid
Noise is produced again, situations below occurs：1st, ventilation-sectional area shape, size are being continually changing；2nd, the second air devider is all
Partial noise is reflected, is reflected by outer metallic surface；3rd, partial air molecule by the round-hole punched plate of inboard wall of skeleton with it is soft
Sound-absorbing material is touched；4th, at the same air flow change rapidly, local disorders.
Based on above-mentioned 4 noises by partial reduction.
Wind meets after the second air devider with the 3rd air devider, the 3rd air devider end cap be other positions of steel plate by
Round-hole punched plate is made and end socket is relatively large in diameter；Soft sound-absorbing material is full of at 3rd air devider end cap and round-hole punched plate is used
Seal, in order to avoid producing noise again, situations below 1, ventilation-sectional area geomery occur and be continually changing and changing greatly；
2nd, partial noise is reflected, is reflected by all outer metallic surfaces of the 3rd air devider；3rd, partial air molecule is by skeleton
The round-hole punched plate of wall is touched with soft sound-absorbing material；4th, at the same air flow constantly change, local disorders.
Based on above-mentioned 4 noises by partial reduction.
In sum from right to left noise repeatedly, is gradually weakened wind when muffler.
The utility model muffler for fan is using unique three-level air devider structure.
First air devider, all using steel plate structure and its diameter is less；First air devider cone inside is full of soft suction
Sound material and sealed with round-hole punched plate, in order to avoid noise is produced again.
Second air devider, the second air devider end cap is made up at other positions of steel plate of round-hole punched plate；Second air devider
End socket portion is sealed full of soft sound-absorbing material and with round-hole punched plate, in order to avoid noise is produced again.
3rd air devider, the 3rd air devider end cap is made up at other positions of steel plate of round-hole punched plate, cuts end socket diameter
It is maximum；Soft sound-absorbing material is full of at 3rd air devider end cap and is sealed with round-hole punched plate, in order to avoid noise is produced again.
Each air devider forms refraction, reflection to noise and effectively reduces noise.
Each air devider makes ventilation-sectional area constantly change simultaneously, and air flow constantly changes, local disorders reduce noise.
Each air devider adopts round-hole punched plate as soft sound-absorbing material is sufficient filling between skeleton and encased steel plate with effective
Reduce noise.
The muffler for fan pressure loss is not more than 450Pa, and sound-damping qualities are 20-45dB (A).
Muffler for fan is best suitable for air-introduced machine outlet and uses, if two serial or parallel connection using effects become apparent from.
The above, is only preferred embodiment of the present utility model, not makees any to structure of the present utility model
Pro forma restriction.Every above example is made any simple modification, equivalent according to technical spirit of the present utility model
Change and modification, belong in the range of the technical solution of the utility model.
Claims (1)
1. a kind of muffler for fan, including muffler for fan housing, it is characterised in that：
Muffler for fan housing includes muffler inwall and muffler outer wall；
Muffler for fan housing is cylindrical；
Soft sound-absorbing material is filled between muffler inwall and muffler outer wall；
Muffler for fan housing two ends are provided with flange；
Muffler for fan housing is provided with muffler cavity；
The first air devider is provided with muffler chamber body on the inside of right flange；
The second air devider is provided with the left of first air devider；
The 3rd air devider is provided with muffler chamber body on the inside of the flange of left side；
Muffler inwall is made up of round-hole punched plate；
First air devider is cone shell；
First air devider front end closed rear end opening；
Area of the area of the first air devider front-end cross-sectional view less than cross sectional rear end face；
First air devider leading head is Surface of Sphere；
Soft sound-absorbing material is filled with first air devider；
Closed by round-hole punched plate at first air devider open rearward end；
Three/mono- to a quarter of a diameter of muffler inner diameter in the first air devider rear end；
First air devider rear portion is connected by connecting plate with muffler inwall；
Second air devider be made up of two cone shells including：First cone shell and the second cone shell are constituted；
First cone shell front end closed rear end opening；
Area of the area of the first cone shell front-end cross-sectional view less than cross sectional rear end face；
First cone shell leading head is Surface of Sphere；
First cone shell leading head is filled with soft sound-absorbing material；
Closed by round-hole punched plate in the outside of the first cone shell leading head filled soft sound-absorbing material；
First cone shell is made up of round-hole punched plate；
The rear end of the first cone shell is connected with the second cone shell rear end；
Second cone shell front end is connected with muffler inwall；
Second cone shell front-end cross-sectional view product is more than cross sectional rear end area；
Second cone shell is made up of round-hole punched plate；
3rd air devider is cone shell；
3rd air devider front end closed rear end opening；
Area of the area of the 3rd air devider front-end cross-sectional view less than cross sectional rear end face；
3rd air devider leading head is Surface of Sphere；
3rd air devider leading head is filled with soft sound-absorbing material；
Closed by round-hole punched plate in the outside of the 3rd air devider leading head filled soft sound-absorbing material；
3rd air devider centrum is made up of round-hole punched plate；
3rd air devider rear end is connected with muffler inwall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228254.XU CN206159127U (en) | 2016-11-16 | 2016-11-16 | Fan silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621228254.XU CN206159127U (en) | 2016-11-16 | 2016-11-16 | Fan silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206159127U true CN206159127U (en) | 2017-05-10 |
Family
ID=58659653
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621228254.XU Active CN206159127U (en) | 2016-11-16 | 2016-11-16 | Fan silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206159127U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989069A (en) * | 2017-05-25 | 2017-07-28 | 江苏永益环保科技有限公司 | Blower fan silencer |
| CN107269595A (en) * | 2017-07-20 | 2017-10-20 | 天津中隧通风机有限公司 | The muffler of jet blower |
-
2016
- 2016-11-16 CN CN201621228254.XU patent/CN206159127U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106989069A (en) * | 2017-05-25 | 2017-07-28 | 江苏永益环保科技有限公司 | Blower fan silencer |
| CN107269595A (en) * | 2017-07-20 | 2017-10-20 | 天津中隧通风机有限公司 | The muffler of jet blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: Da Xin Zhuang Zhen Huang Mi Lin Cun, Fengnan District, Tangshan City, Hebei Province Patentee after: Tangshan Shuangyi Feed Machinery Co., Ltd Address before: Hebei Province, Huang Mi Ao village 063304 Tangshan City Fengnan District Xinzhuang Town Patentee before: TANGSHAN FENGNAN SHUANGYI FEED MACHINERY Co.,Ltd. |
|
| CP03 | Change of name, title or address |