CN2356165Y - Noise eliminating fan - Google Patents
Noise eliminating fan Download PDFInfo
- Publication number
- CN2356165Y CN2356165Y CN 99202576 CN99202576U CN2356165Y CN 2356165 Y CN2356165 Y CN 2356165Y CN 99202576 CN99202576 CN 99202576 CN 99202576 U CN99202576 U CN 99202576U CN 2356165 Y CN2356165 Y CN 2356165Y
- Authority
- CN
- China
- Prior art keywords
- sound
- blower
- blower fan
- sound absorbing
- silencing
- 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 relates to a noise eliminating blower which belongs to noise reducing technology of a blower. The noise eliminating blower is composed of a blower, a silencing cylinder and a silencing box, wherein, the silencing cylinder is connected with an air outlet of the blower; the blower and the silencing cylinder are arranged in the silencing box; the inner wall of a cylinder body of the silencing cylinder with a double-layer structure is provided with a plurality of sound absorbing holes; sound absorbing materials are filled between the inner wall and the outer wall of the cylinder body; the inner wall of the silencing box is provided with a sound absorbing layer made from sound absorbing materials, and an air inlet of the silencing box and an air inlet of the blower are provided with a sound absorbing plate. The structural design of the utility model can reduce noise intensity of the blower, and in addition, the structural design is more scientific and reasonable.
Description
The utility model belongs to the blower fan noise reduction technology, mainly proposes a kind of Noise eliminating fan.
The particularly high rotating speed of blower fan in using now, high blast, big air quantity blower fan have the extremely strong noise width of cloth to penetrate, to surrounding environment generation pollution to a certain degree.Especially the big moving rate blower fan of TV and radio emission machine air cooling system, the strong noise that is produced is to performance recording system and office system often produce serious influence on every side.
The purpose that the utility model proposes promptly is to reduce the noise of blower fan, thereby the elimination fan noise width of cloth is penetrated the influence to surrounding environment.
The utility model is finished the technological scheme that its invention task taked: it is made up of blower fan, hush pipe, Sound Attenuator; Wherein hush pipe is connected with the exhaust outlet of blower fan, and blower fan, hush pipe are arranged in the Sound Attenuator; Double-deck hush pipe cylinder inboard wall has a plurality of sound-absorption hole, is filled with sound absorbing material between the inside and outside wall of cylindrical shell; The main noise of penetrating through the outside width of cloth of exhaust outlet in order to absorb that fan blade by blower fan produces.The inwall of Sound Attenuator has the sound-absorption layer that sound absorbing material constitutes, the main noise that produces in order to the casing that absorbs blower fan, the acoustic board that an internal surface has sound-absorption layer is set, mainly the noise of penetrating through the wind inlet direction width of cloth between the intake grill of Sound Attenuator and the wind inlet of blower fan in order to absorb that fan blade by blower fan produces.
The utility model is compared with the existing blower fan of equal blast, air quantity, and its noise intensity can reduce about 30dB.Blower fan with existing 1 kilowatt of metric wave television transmitter is an example, and its noise width of cloth is penetrated in the building about one 3,000 square metres, can produce noise jamming in various degree everywhere.Adopt the utility model, its noise width of cloth is penetrated the office of not disturbing the blower fan adjacent room.Its structural design is comparatively scientific and reasonable in addition, has to apply effect preferably.
Embodiment:
Accompanying drawing 1 is the utility model structural representation.
Accompanying drawing 2 is the structural representation of the utility model hush pipe.
The embodiment who provides is in conjunction with the accompanying drawings further specified its structure:
Structure as shown in Figure 1, Noise eliminating fan is made up of blower fan 1, hush pipe 2, Sound Attenuator 3; Wherein hush pipe 2 is connected with the exhaust outlet of blower fan 1, and blower fan 1, hush pipe 2 are arranged in the Sound Attenuator 3.
As shown in Figure 2, hush pipe 2 is a double layer construction, and the inwall of cylindrical shell has a plurality of sound-absorption hole 10, is filled with sound absorbing material 11 between the inside and outside wall, mainly the noise of penetrating through the outside width of cloth of exhaust outlet in order to absorb that fan blade by blower fan produces.
As shown in Figure 1, have the sound-absorption layer 7 that is made of sound absorbing material on the inwall of Sound Attenuator 3, sound absorbing material can be little glass silk flosssilk wadding or high density sponge.Mainly in order to absorb noise by the casing generation of blower fan 1.The door of Sound Attenuator 3 is arranged on the one side near blower fan wind inlet 6, to maintain easily.The acoustic board 5 that an internal surface has sound-absorption layer 8 is set, mainly the noise of penetrating through the wind inlet direction width of cloth between the intake grill 4 of Sound Attenuator and the blower fan wind inlet 6 to absorb that fan blade by blower fan produces.The intake grill 4 of Sound Attenuator can be designed to the louvre type structure.Acoustic board 5 can be fixed on the door-plate by some supporting posts, and the distance of acoustic board 5 and door-plate should satisfy the requirement of blower fan air output.
Blower fan 1 can be selected the existing electric fan of suitable index according to specific requirements such as required blast, air quantity for use.
Claims (1)
1, a kind of Noise eliminating fan, feature of the present utility model is: it is made up of blower fan (1), hush pipe (2), Sound Attenuator (3); Wherein hush pipe (2) is connected with the exhaust outlet of blower fan (1), and blower fan (1), hush pipe (2) are arranged in the Sound Attenuator (3); Double-deck hush pipe cylinder inboard wall has a plurality of sound-absorption hole (10), is filled with sound absorbing material (11) between the inside and outside wall of cylindrical shell; The inwall of Sound Attenuator (3) has the sound-absorption layer (7) that sound absorbing material constitutes, and is provided with the acoustic board (5) that an internal surface has sound-absorption layer (8) between the intake grill (4) of Sound Attenuator (3) and the wind inlet (6) of blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202576 CN2356165Y (en) | 1999-01-22 | 1999-01-22 | Noise eliminating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 99202576 CN2356165Y (en) | 1999-01-22 | 1999-01-22 | Noise eliminating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2356165Y true CN2356165Y (en) | 1999-12-29 |
Family
ID=33997974
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 99202576 Expired - Fee Related CN2356165Y (en) | 1999-01-22 | 1999-01-22 | Noise eliminating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2356165Y (en) |
Cited By (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103244464A (en) * | 2013-04-28 | 2013-08-14 | 山东省章丘鼓风机股份有限公司 | Roots blower pipeline noise reduction device |
| CN101852475B (en) * | 2005-03-31 | 2013-08-28 | 亨泰尔公司 | Fan array fan section in air-handling systems |
| CN103352841A (en) * | 2012-07-03 | 2013-10-16 | 中国石油化工股份有限公司 | Pump-used noise reduction shed |
| CN104578587A (en) * | 2015-01-13 | 2015-04-29 | 南阳防爆集团股份有限公司 | Central air supply, heat dissipation and noise reduction system for motor group |
| CN105729663A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Plastics granulating device with draught fan noise enclosures |
| CN105729662A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastic granulation system with efficient feed function |
| CN105729661A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastics production system with water heating stock bin |
| CN105729670A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastic granulation system convenient for raw material preheating |
| CN105729664A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastics granulating system with water heating stock bin |
| CN105729667A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Plastic granulating system with draught fan noise enclosures |
| CN105751400A (en) * | 2016-04-27 | 2016-07-13 | 德清县百盛塑料有限公司 | Plastic production device provided with fan sound-proof housings |
| CN105773867A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Plastic production system with fan acoustic hoods |
| CN105773868A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production device capable of achieving efficient feeding |
| CN105773866A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production device provided with water heating bin |
| CN105773869A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production system bringing convenience to raw material preheating |
| CN105835256A (en) * | 2016-04-27 | 2016-08-10 | 德清县百盛塑料有限公司 | Low-noise plastic granulation device capable of realizing efficient charge |
| CN105835255A (en) * | 2016-04-27 | 2016-08-10 | 德清县百盛塑料有限公司 | Low-noise plastic production device convenient for raw material preheating |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
-
1999
- 1999-01-22 CN CN 99202576 patent/CN2356165Y/en not_active Expired - Fee Related
Cited By (19)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101852475B (en) * | 2005-03-31 | 2013-08-28 | 亨泰尔公司 | Fan array fan section in air-handling systems |
| CN103352841A (en) * | 2012-07-03 | 2013-10-16 | 中国石油化工股份有限公司 | Pump-used noise reduction shed |
| CN103244464A (en) * | 2013-04-28 | 2013-08-14 | 山东省章丘鼓风机股份有限公司 | Roots blower pipeline noise reduction device |
| CN104578587A (en) * | 2015-01-13 | 2015-04-29 | 南阳防爆集团股份有限公司 | Central air supply, heat dissipation and noise reduction system for motor group |
| CN104578587B (en) * | 2015-01-13 | 2017-08-08 | 南阳防爆集团股份有限公司 | A kind of motor group centralized supply wind radiating noise reduction system |
| CN108602457A (en) * | 2016-01-28 | 2018-09-28 | 标致雪铁龙汽车股份有限公司 | Sound arrester on ventilated seating wind turbine |
| CN105729664A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastics granulating system with water heating stock bin |
| CN105729670A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastic granulation system convenient for raw material preheating |
| CN105729661A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastics production system with water heating stock bin |
| CN105729667A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Plastic granulating system with draught fan noise enclosures |
| CN105751400A (en) * | 2016-04-27 | 2016-07-13 | 德清县百盛塑料有限公司 | Plastic production device provided with fan sound-proof housings |
| CN105773867A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Plastic production system with fan acoustic hoods |
| CN105773868A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production device capable of achieving efficient feeding |
| CN105773866A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production device provided with water heating bin |
| CN105773869A (en) * | 2016-04-27 | 2016-07-20 | 德清县百盛塑料有限公司 | Low-noise plastic production system bringing convenience to raw material preheating |
| CN105835256A (en) * | 2016-04-27 | 2016-08-10 | 德清县百盛塑料有限公司 | Low-noise plastic granulation device capable of realizing efficient charge |
| CN105835255A (en) * | 2016-04-27 | 2016-08-10 | 德清县百盛塑料有限公司 | Low-noise plastic production device convenient for raw material preheating |
| CN105729662A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Low-noise plastic granulation system with efficient feed function |
| CN105729663A (en) * | 2016-04-27 | 2016-07-06 | 德清县百盛塑料有限公司 | Plastics granulating device with draught fan noise enclosures |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |