CN206329524U - A kind of multiple wing low-noise centrifugal fan - Google Patents
A kind of multiple wing low-noise centrifugal fan Download PDFInfo
- Publication number
- CN206329524U CN206329524U CN201621457046.7U CN201621457046U CN206329524U CN 206329524 U CN206329524 U CN 206329524U CN 201621457046 U CN201621457046 U CN 201621457046U CN 206329524 U CN206329524 U CN 206329524U
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- Prior art keywords
- spiral case
- motor
- centrifugal fan
- multiple wing
- noise
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Abstract
The utility model provides a kind of multiple wing low-noise centrifugal fan, belongs to gas transportation facilities technical field.It solves the problems such as existing centrifugal blower noise is big.This multiple wing low-noise centrifugal fan includes spiral case, motor and impeller, motor is installed on the middle part of volute outer wall, and the motor shaft of motor is penetrated inside spiral case, impeller is located at the middle part inside spiral case and is fixed on by reel on motor shaft, impeller includes installing plate, the blade of retainer ring and annular array between installing plate and retainer ring, air inlet is provided with the opposite side outer wall of spiral case, air outlet is offered on the perisporium of spiral case, silencing net is installed with the inner of air inlet and air outlet, several bloop is offered on silencing net, the bottom of spiral case and motor is provided with the overall support being stamped to form.The utility model has the low advantage of noise.
Description
Technical field
The utility model belongs to gas transportation facilities technical field, is related to a kind of blower fan, more particularly to a kind of multiple wing low noise
Sound centrifugal blower.
Background technology
Centrifugal blower is to improve gas pressure by the mechanical energy of input to supply gas side by side the machinery of body, and it is a kind of driven
Fluid machinery.The principle of potential energy is converted to according to kinetic energy, the impeller using high speed rotation accelerates gas, then slows down, change
Flow direction, makes kinetic energy be converted into potential energy.In centrifugal blower, gas is from axially into impeller, and gas changes over footpath when flowing through impeller
To subsequently into blower housing.In blower housing, gas and changing flow direction causes to slow down, and this decelerating effect will be dynamic
Pressure energy can be converted into.
In ventilation blower running, revolution, vortex, sinuous flow and the mechanical oscillation of blade can all produce substantial amounts of noise.This
Plant noise and have a strong impact on surrounding enviroment, to the physiology of the personnel of production and living causes to damage with mental health near blower fan for a long time
Evil.
The content of the invention
The purpose of this utility model be for the above-mentioned problems in the prior art there is provided a kind of multiple wing low noise from
Heart blower fan.
The purpose of this utility model can be realized by following technical proposal：A kind of multiple wing low-noise centrifugal fan, including
Spiral case, motor and impeller, it is characterised in that described motor is installed on the middle part of volute outer wall, and the electricity of the motor
Arbor is penetrated inside spiral case, and described impeller is located at the middle part inside spiral case and is fixed on by reel on motor shaft, institute
The impeller stated includes blade installing plate, retainer ring and annular array between installing plate and retainer ring, the spiral case it is another
It is provided with the outer wall of side on air inlet, the perisporium of the spiral case and offers air outlet, the inner of the air inlet and air-out
It is installed with mouth on silencing net, described silencing net and offers several bloop, described spiral case and the bottom of motor
The overall support being stamped to form is installed.
The operation principle of the multiple wing low-noise centrifugal fan：When needing air draft, electric motor starting and impeller rotation, gas from
Air inlet is entered axially into impeller, and gas is converted into axially when flowing through blade and entered in spiral case, then is discharged by air outlet.
Gas flows through air inlet and air outlet, during by bloop on silencing net, and the frequency spectrum of the noise of air-flow can shift to high frequency or super
High frequency, makes the audible sound composition in frequency spectrum substantially reduce, so as to reduce the interference and injury to people.
In above-mentioned multiple wing low-noise centrifugal fan, described silencing net is fabricated from a flexible material.
In above-mentioned multiple wing low-noise centrifugal fan, described bloop is evenly distributed on silencing net.
In above-mentioned multiple wing low-noise centrifugal fan, described air inlet is in the funnel-form inwardly reduced.
In above-mentioned multiple wing low-noise centrifugal fan, noise reduction layer is provided with the inner side perisporium of the spiral case.
In above-mentioned multiple wing low-noise centrifugal fan, described noise reduction layer is acoustical cotton.
In above-mentioned multiple wing low-noise centrifugal fan, described noise reduction layer is metal sound-absorbing net.
In above-mentioned multiple wing low-noise centrifugal fan, described support has vertical fixed plate, described fixed plate
It is fixed between impeller and motor and by bolt or screw on the outer wall of spiral case.
In above-mentioned multiple wing low-noise centrifugal fan, the support has trapezoidal motor cabinet, and described motor
It is bolted on motor cabinet.
Compared with prior art, this multiple wing low-noise centrifugal fan has advantages below：
1st, silencing net is provided with the air inlet and air outlet of this multiple wing low-noise centrifugal fan, wind can be greatly reduced
The noise that machine is produced when running.
2nd, the silencing net of this multiple wing low-noise centrifugal fan is fabricated from a flexible material, and does not interfere with air intake and the air draft of blower fan
Effect.
3rd, noise reduction layer is equipped with the inner side perisporium of this multiple wing low-noise centrifugal fan, makes the erasure effect of the blower fan more
It is good.
4th, the support of this multiple wing low-noise centrifugal fan is made up of overall punching press, and motor cabinet is trapezoidal, blower fan is existed
More consolidated when using.
5th, the air inlet of this multiple wing low-noise centrifugal fan is in the funnel-form inwardly reduced, makes air inlet effect more preferable.
Brief description of the drawings
Fig. 1 is the positive structure diagram of this multiple wing low-noise centrifugal fan.
Fig. 2 is the right side structural representation of this multiple wing low-noise centrifugal fan.
In figure, 1, spiral case；2nd, motor；3rd, impeller；4th, motor shaft；5th, reel；6th, installing plate；7th, retainer ring；8th, blade；9、
Air inlet；10th, air outlet；11st, silencing net；12nd, bloop；13rd, support；14th, noise reduction layer；15th, fixed plate；16th, motor cabinet.
Embodiment
The following is specific embodiment of the utility model and with reference to accompanying drawing, further is made to the technical solution of the utility model
Description, but the utility model is not limited to these embodiments.
As shown in Figure 1, 2, this multiple wing low-noise centrifugal fan includes spiral case 1, motor 2 and impeller 3, and motor 2 is installed on snail
The middle part of the outer wall of shell 1, and the motor shaft 4 of motor 2 penetrated inside spiral case 1, impeller 3 is located at the middle part inside spiral case 1
And fixed on the motor shaft (4) by reel 5, impeller 3 includes installing plate 6, retainer ring 7 and annular array in installing plate 6 with consolidating
Determine to be provided with the blade 8 between ring 7, the opposite side outer wall of spiral case 1 on air inlet 9, the perisporium of spiral case 1 and offer air outlet
10, it is installed with silencing net 11, silencing net 11 and offers several bloop on the inner of air inlet 9 and air outlet 10
12, spiral case 1 is provided with the overall support 13 being stamped to form with the bottom of motor 2.
In order to not influence the air inlet effect of blower fan, silencing net 11 is fabricated from a flexible material, and bloop 12, which is evenly distributed on, to disappear
On sound net 11.
For the ease of air intake, air inlet 9 is in the funnel-form inwardly reduced.
In order that erasure effect more preferably, is provided with noise reduction layer 14 on the inner side perisporium of spiral case 1, noise reduction layer 14 be acoustical cotton or
Metal sound-absorbing net.
In order that friendly frame is more consolidated, support 13 has vertical fixed plate 15, and fixed plate 15 is located at impeller 3 and motor 2
Between and be fixed on by bolt or screw on the outer wall of spiral case 1, support 13 has trapezoidal motor cabinet 16, and motor 2 is logical
Cross and be bolted on motor cabinet 16.
Specific embodiment described herein is only to the utility model spirit explanation for example.The utility model institute
Category those skilled in the art can make various modifications or supplement or using similar to described specific embodiment
Mode substitute, but without departing from spirit of the present utility model or surmount scope defined in appended claims.
Although more used herein spiral case 1, motor 2, impeller 3, motor shaft 4, reel 5, installing plate 6, retainer ring 7,
Blade 8, air inlet 9, air outlet 10, silencing net 11, bloop 12, support 13, noise reduction layer 14, fixed plate 15, motor cabinet 16 etc.
Term, but it is not precluded from the possibility using other terms.It is used for the purpose of more easily describing and explaining using these terms
Essence of the present utility model；Any additional limitation is construed as all to disagree with the utility model spirit.
Claims (9)
1. a kind of multiple wing low-noise centrifugal fan, including spiral case（1）, motor（2）With impeller（3）, it is characterised in that described electricity
Machine（2）It is installed on spiral case（1）The middle part of outer wall, and the motor（2）Motor shaft（4）Penetrate spiral case（1）Inside, it is described
Impeller（3）Positioned at spiral case（1）Internal middle part and pass through reel（5）It is fixed on motor shaft（4）On, described impeller
（3）Including installing plate（6）, retainer ring（7）And annular array is in installing plate（6）With retainer ring（7）Between blade（8）, institute
State spiral case（1）Opposite side outer wall on be provided with air inlet（9）, the spiral case（1）Perisporium on offer air outlet（10）, institute
State air inlet（9）The inner and air outlet（10）On be installed with silencing net（11）, described silencing net（11）On offer
Several bloop（12）, described spiral case（1）With motor（2）Bottom the overall support being stamped to form is installed（13）.
2. a kind of multiple wing low-noise centrifugal fan according to claim 1, it is characterised in that described silencing net（11）By
Flexible material is made.
3. a kind of multiple wing low-noise centrifugal fan according to claim 1 or 2, it is characterised in that described bloop
（12）It is evenly distributed on silencing net（11）On.
4. a kind of multiple wing low-noise centrifugal fan according to claim 1, it is characterised in that described air inlet（9）It is in
The funnel-form inwardly reduced.
5. a kind of multiple wing low-noise centrifugal fan according to claim 1, it is characterised in that the spiral case（1）Inner side
Noise reduction layer is provided with perisporium（14）.
6. a kind of multiple wing low-noise centrifugal fan according to claim 5, it is characterised in that described noise reduction layer（14）For
Acoustical cotton.
7. a kind of multiple wing low-noise centrifugal fan according to claim 5, it is characterised in that described noise reduction layer（14）For
Metal sound-absorbing net.
8. a kind of multiple wing low-noise centrifugal fan according to claim 1, it is characterised in that described support（13）Have
Vertical fixed plate（15）, described fixed plate（15）Positioned at impeller（3）With motor（2）Between and fixed by bolt or screw
In spiral case（1）Outer wall on.
9. a kind of multiple wing low-noise centrifugal fan according to claim 1 or 8, it is characterised in that the support（13）Tool
There is trapezoidal motor cabinet（15）, and described motor（2）It is bolted on motor cabinet（15）On.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621457046.7U CN206329524U (en) | 2016-12-28 | 2016-12-28 | A kind of multiple wing low-noise centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621457046.7U CN206329524U (en) | 2016-12-28 | 2016-12-28 | A kind of multiple wing low-noise centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206329524U true CN206329524U (en) | 2017-07-14 |
Family
ID=59292881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621457046.7U Expired - Fee Related CN206329524U (en) | 2016-12-28 | 2016-12-28 | A kind of multiple wing low-noise centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206329524U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434393A (en) * | 2018-12-22 | 2019-03-08 | 江苏佳风风机科技有限公司 | A kind of blower and preparation method thereof for conveying powder raw material |
| CN113007116A (en) * | 2021-04-22 | 2021-06-22 | 景德镇陶瓷大学 | Fan for ceramic manufacturing process and ventilation system thereof |
-
2016
- 2016-12-28 CN CN201621457046.7U patent/CN206329524U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109434393A (en) * | 2018-12-22 | 2019-03-08 | 江苏佳风风机科技有限公司 | A kind of blower and preparation method thereof for conveying powder raw material |
| CN109434393B (en) * | 2018-12-22 | 2023-08-22 | 江苏佳风风机科技有限公司 | Fan for conveying powder raw materials and manufacturing method thereof |
| CN113007116A (en) * | 2021-04-22 | 2021-06-22 | 景德镇陶瓷大学 | Fan for ceramic manufacturing process and ventilation system thereof |
| CN113007116B (en) * | 2021-04-22 | 2022-07-08 | 景德镇陶瓷大学 | Fan for ceramic manufacturing process and ventilation system thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170714 Termination date: 20171228 |