CN2821242Y - Silensing pipeline ventilator - Google Patents
Silensing pipeline ventilator Download PDFInfo
- Publication number
- CN2821242Y CN2821242Y CN 200520040858 CN200520040858U CN2821242Y CN 2821242 Y CN2821242 Y CN 2821242Y CN 200520040858 CN200520040858 CN 200520040858 CN 200520040858 U CN200520040858 U CN 200520040858U CN 2821242 Y CN2821242 Y CN 2821242Y
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- CN
- China
- Prior art keywords
- casing
- side plate
- ventilating fan
- type pipeline
- noise cancelling
- 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 discloses a silencing pipeline ventilating fan, which comprises a box body, an air outlet arranged at the front side plate of the box body, an air inlet arranged at the back side plate of the box body, a ventilating fan casing arranged in the box body and a ventilating fan arranged in the ventilating fan casing. An air outlet at the front side of the ventilating fan casing is in involution with the air outlet of the front side plate of the box body. The utility model is characterized in that the ventilating fan is composed of a single shaft stretching motor and a forward multi-wing impeller connected with the output shaft of the motor. The inner walls of the left and the right side plates of the box body are provided with silencing plates. The inner wall of the back side plate of the box body is provided with a silencer. The inner wall of the back side plate of the ventilating fan casing is provided with a silencing plate. When the ventilating fan operates, the noise generated by airflows is absorbed by the silencing plates arranged at the inner walls of the left and the right side plates, the silencing plate formed from centrifugal glass wool coating glass cloth and arranged at the inner wall of the back end of the ventilating fan casing and the silencer formed from centrifugal glass wool coating glass cloth and arranged at the inner wall of the back side plate in the box body. Thereby, the integral noise of the ventilating fan is reduced.
Description
Technical field
The utility model relates to a kind of pipeline fan, particularly a kind of noise cancelling type pipeline fan.
Background technique
Noise to ventilation requires more and more higher in office building, commercial and residential building, medical institutions and test experience chamber etc. at present, but what domestic more existing general purpose centrifugal blowers adopted is pipeline fan, its noise index does not satisfy usage requirement, in some ventilations in the demanding building to noise, more existing blower fans can't use.
Summary of the invention
The purpose of this utility model is exactly to propose a kind of noise cancelling type pipeline fan at above-mentioned prior art in the deficiency aspect the noise reduction.This noise cancelling type pipeline fan can reduce noise greatly, is applicable to low noise occasion ventilation in the buildings such as office building, commercial and residential building, medical institutions and test experience chamber.
The purpose of this utility model is achieved in that a kind of noise cancelling type pipeline fan, comprising: casing, be located at the exhaust outlet of casing front side plate and be located at the casing back side panel intake grill, be located at fan casing in the casing, be located at the blower fan in the fan casing; The exhaust outlet of the exhaust outlet of fan casing front side and casing front side plate is involutory; Be characterized in that described blower fan constitutes with the impeller that is connected with the output shaft of this motor by singly stretching shaft motor; The inwall of the left side plate of described casing is provided with muffler plate; The inwall of the back side panel of described casing is provided with silencing apparatus; The inwall of the back side panel of described fan casing is provided with muffler plate.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, described impeller is a forward multiple wing type impeller.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, described impeller single forming constitutes.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, each blade on the described impeller is circular arc.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, described muffler plate is coated on centrifugally glass-wool by glass cloth and constitutes outward.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, described silencing apparatus is coated on centrifugally glass-wool by glass cloth and constitutes outward, and its position relative with intake grill is provided with air intake passage.
Above-mentioned a kind of noise cancelling type pipeline fan, wherein, the center of the center of described intake grill, the center of exhaust outlet and impeller is on same axis.
Above-mentioned a kind of noise cancelling type pipeline fan wherein, also comprises four hangers that are located at side plate both sides, casing front and back.
The utility model has adopted above technological scheme again, is the forward multiple wing type with impeller design, and adopts the mould single forming, has guaranteed the physical dimension of impeller, through quiet dynamic balance check, stable performance; Blade Design with impeller is that blade is circular arc simultaneously, and its gas-flow resistance is little, aerodynamic noise frequency height, and running is steady, and sound deadening capacity is big.Again since the inwall of the left side plate of casing, the inwall of the back side panel of fan casing be provided with can absorb noise be coated on muffler plate outside the centrifugally glass-wool by glass cloth, and the inwall of the back side panel of casing be provided with can absorb noise be coated on silencing apparatus outside the centrifugally glass-wool by glass cloth, can reduce noise 15～20dB (A).Thereby satisfied the low noise requirement for ventilation equipment such as some office buildings, commercial and residential building, medical institutions and test experience chamber.
Description of drawings
Concrete structure of the present utility model is further provided by some embodiment and accompanying drawing thereof.
Fig. 1 is the plan view of a kind of noise cancelling type pipeline fan of the utility model.
Fig. 2 is the left view of a kind of noise cancelling type pipeline fan of the utility model.
Fig. 3 is the A-A sectional view of Fig. 2.
Embodiment
See also Fig. 1, Fig. 2.A kind of noise cancelling type pipeline fan of the utility model comprises: casing 1, casing 1 comprise front side plate 11, back side panel 12, left sideboard 13, right sideboard 14 and top board 15 and base plate 16.Casing front side plate 11 is provided with exhaust outlet 21, and casing back side panel 12 is provided with intake grill 22.The left sideboard 13 of casing (or other side plates) is provided with the terminal box 3 of control blower fan action.The connecting part of casing front side plate and back side panel and left sideboard and right sideboard respectively is provided with a hanger 4 that is used for fixing this casing.
See also Fig. 3.Be provided with blower fan 52 in casing, the exhaust outlet 53 of blower fan is involutory with the exhaust outlet 21 of casing.Described blower fan 52 is singly stretched shaft motor 521 and is constituted with the impeller 522 that is connected with the output shaft of this motor by casing 51.Its structure is: the spike of singly stretching axle electricity 521 directly is fixed on the fan casing side plate, and impeller 522 reels are fixed on the motor shaft.During use, singly stretch the shaft motor direct impeller running of turning round.For reducing noise significantly, the utility model has designed aerodynamic noise frequency height and the big forward multiple wing type impeller of sound deadening capacity.This impeller adopts the mould single forming to constitute, and each blade on the impeller is circular arc.The center of the center of described intake grill, the center of exhaust outlet and impeller is on same axis.
For further reaching the reduction anti noise, the utility model is provided with muffler plate 7 at the inwall of the left side plate of casing, is provided with silencing apparatus 8 at the inwall of the front side plate of casing, and is provided with muffler plate 9 at the inwall of the front side plate of fan casing.Described muffler plate and silencing apparatus are coated on centrifugally glass-wool by glass cloth and constitute outward.Silencing apparatus 8 in the inwall setting of the front side plate of casing is provided with air intake passage 81 at the position relative with intake grill.
The utility model is owing to inwall and the fan casing rear end inwall at the casing left side plate is provided with employing coats the glass cloth formation outside centrifugally glass-wool muffler plate, and the back side panel inwall is provided with employing coats the glass cloth formation outside centrifugally glass-wool silencing apparatus in casing, when blower fan turns round, noise generated by air flow is by a left side, the acoustic board that the right sideboard inwall is provided with, and fan casing rear end inwall is provided with employing coats the glass cloth formation outside centrifugally glass-wool muffler plate, and the back side panel inwall is provided with employing and coats the silencing apparatus that glass cloth constitutes absorb outside centrifugally glass-wool in casing, thereby reduces the overall noise of blower fan greatly.
Claims (8)
1. noise cancelling type pipeline fan comprises: casing, be located at the exhaust outlet of casing front side plate and be located at the casing back side panel intake grill, be located at fan casing in the casing, be located at the blower fan in the fan casing; The exhaust outlet of the exhaust outlet of fan casing front side and casing front side plate is involutory; It is characterized in that described blower fan constitutes with the impeller that is connected with the output shaft of this motor by singly stretching shaft motor; The inwall of the left side plate of described casing is provided with muffler plate; The inwall of the back side panel of described casing is provided with silencing apparatus; The inwall of the back side panel of described fan casing is provided with muffler plate.
2, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, described impeller is a forward multiple wing type impeller.
3, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, described impeller single forming constitutes.
4, according to claim 1,2 or 3 described a kind of noise cancelling type pipeline fans, it is characterized in that each blade on the described impeller is circular arc.
5, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, described muffler plate is coated on centrifugally glass-wool by glass cloth and constitutes outward.
6, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, described silencing apparatus is coated on centrifugally glass-wool by glass cloth and constitutes outward, and its position relative with intake grill is provided with air intake passage.
7, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, the center of the center of described intake grill, the center of exhaust outlet and impeller is on same axis.
8, a kind of noise cancelling type pipeline fan according to claim 1 is characterized in that, also comprises four hangers that are located at side plate both sides, casing front and back.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040858 CN2821242Y (en) | 2005-04-15 | 2005-04-15 | Silensing pipeline ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520040858 CN2821242Y (en) | 2005-04-15 | 2005-04-15 | Silensing pipeline ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2821242Y true CN2821242Y (en) | 2006-09-27 |
Family
ID=37017796
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520040858 Expired - Fee Related CN2821242Y (en) | 2005-04-15 | 2005-04-15 | Silensing pipeline ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2821242Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101900128A (en) * | 2010-08-27 | 2010-12-01 | 苏州顶裕节能设备有限公司 | Box type fan |
| CN102042272A (en) * | 2010-12-13 | 2011-05-04 | 任文华 | Bladeless fan device |
| CN102221018A (en) * | 2011-06-30 | 2011-10-19 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
| CN101595312B (en) * | 2007-01-30 | 2012-03-07 | 松下电器产业株式会社 | Fan with sound-muffling box |
| CN104329294A (en) * | 2013-07-22 | 2015-02-04 | 张崇欣 | Fan sound insulation cover ventilation and sound absorption structure |
| CN105752857A (en) * | 2016-05-18 | 2016-07-13 | 无锡石油化工起重机有限公司 | Noise eliminating type gantry crane |
| CN108412790A (en) * | 2018-03-16 | 2018-08-17 | 昆山斯莱姆节能科技有限公司 | Multifunctional intellectual pipeline fan |
-
2005
- 2005-04-15 CN CN 200520040858 patent/CN2821242Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101595312B (en) * | 2007-01-30 | 2012-03-07 | 松下电器产业株式会社 | Fan with sound-muffling box |
| CN101900128A (en) * | 2010-08-27 | 2010-12-01 | 苏州顶裕节能设备有限公司 | Box type fan |
| CN102042272A (en) * | 2010-12-13 | 2011-05-04 | 任文华 | Bladeless fan device |
| CN102221018A (en) * | 2011-06-30 | 2011-10-19 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
| CN102221018B (en) * | 2011-06-30 | 2013-06-12 | 福耀玻璃工业集团股份有限公司 | Energy-saving sound-proofing centrifugal fan set |
| CN104329294A (en) * | 2013-07-22 | 2015-02-04 | 张崇欣 | Fan sound insulation cover ventilation and sound absorption structure |
| CN105752857A (en) * | 2016-05-18 | 2016-07-13 | 无锡石油化工起重机有限公司 | Noise eliminating type gantry crane |
| CN108412790A (en) * | 2018-03-16 | 2018-08-17 | 昆山斯莱姆节能科技有限公司 | Multifunctional intellectual pipeline fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| DD01 | Delivery of document by public notice |
Addressee: Chen Qilong Document name: Notification to Pay the Fees |
|
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060927 Termination date: 20130415 |