CN207830188U - A kind of high power centrifugal blower - Google Patents
A kind of high power centrifugal blower Download PDFInfo
- Publication number
- CN207830188U CN207830188U CN201820201791.8U CN201820201791U CN207830188U CN 207830188 U CN207830188 U CN 207830188U CN 201820201791 U CN201820201791 U CN 201820201791U CN 207830188 U CN207830188 U CN 207830188U
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- Prior art keywords
- accelerator
- high power
- centrifugal blower
- driving member
- cavity
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Abstract
The utility model discloses a kind of high power centrifugal blowers, including shell, motive bearing, blade, driving member and accelerator, cavity is equipped in shell, motive bearing is equipped in cavity, driving member and accelerator, accelerator surface is equipped with several blades, the blade is discrete to be distributed on accelerator outer surface, accelerator is Pneumatic accelerator, a kind of high power centrifugal blower of the utility model, pass through the combination of motive bearing and driving member, radial load effectively on abatement driving member, noise is reduced from source, the utility model is simple in structure, it is easy to use, it is widely used in mechanical processing industry.
Description
Technical field
The utility model is related to technical fields of mechanical processing, are to be related to a kind of high power centrifugal blower more particularly.
Background technology
Centrifugal blower is the principle that potential energy is converted to according to kinetic energy, is accelerated gas using high-speed rotating impeller, then
Slow down, change flow direction, so that kinetic energy is converted into potential energy, in one-stage centrifugal wind turbine, for gas from axially into impeller, gas flows through leaf
It is radially redirected when wheel, subsequently into diffuser.In diffuser, gas and changing flow direction causes to slow down, this deceleration
Effect converts kinetic energy into pressure energy.Pressure, which increases, to be occurred mainly in impeller, next is happened at diffusion process.In multistage centrifugal
In wind turbine, next impeller is allowed airflow into return channel, generates higher pressure.
Centrifugal blower is one of main Types of wind turbine, is widely used in ventilation, operation of air conditioning systems, Yi Jiye
The fields such as gold, electric power, coal, oil and chemical industry are the core machinery of many industrial department conveying gas mediums and main energy consumption
Equipment.Research and the design level for improving centrifugal blower, it is energy saving to have important meaning to accelerating the development of national economy
Justice.
Centrifugal fan is mainly by structure compositions such as current collector, impeller, spiral case and diffusers.Gas is through current collector directing vane
Wheel, under the turning effort of impeller, pressure rise.The gas come out from impeller, is collected by spiral case and is guided to volute outlet, and
After diffuser again diffusion, it is transported to pipeline or is discharged into air.
In the numerous component of wind turbine, impeller is that wind turbine is most indispensable, and the quality of Impeller Mass directly affects wind
The performance of machine performance.As the heart of centrifugal fan, impeller generates power by an inverse journey that presses through, and reaches ventilation
Purpose.When air-flow flows through draught fan impeller runner, flowing damage can be generated since stickiness effect is by blade surface frictional resistance
It loses, and then causes the reduction of blower press, influence fan performance.Since blade suction surface and pressure face are there are prodigious pressure difference,
Can generally there be fluid in impeller channel from secondary flow of the blade pressure towards suction surface, simultaneously because air-flow is by axially flowing
Switch to Radial Flow, Secondary Flow can also be formed by causing wheel disc pressure to be more than wheel cap pressure, lead to the wheel cap and blade suction of impeller
Occur low regime at face even to detach, forms jet-wake structure, i.e., it is low close to the relative velocity of suction surface, close to pressure face
Relative velocity it is high.Due to the presence of jet-wake structure, centrifugal blower efficiency is caused to decline, noise increases.In blade inlet
Place, since air-flow is turned close to 90 °, the fluid velocity at wheel cap keeps the air velocity into blade uneven higher than at wheel disc,
Influence the stability of air-flow flowing.
In short, since the presence of Secondary Flow makes the same runner inner boundary layer thickness differ, the boundary layer of suction surface is apparent
Much than pressure face boundary thickness, wheel cap boundary layer again much than wheel disc boundary thickness, not only result in this way impeller outlet speed
Degree is not respectively formed " jet-wake ", reduces the efficiency of impeller and increases noise, moreover, the thickening in boundary layer can lead to side
The separation of interlayer influences the mobility status of mainstream, causes prodigious flow losses and aerodynamic noise, this is also to influence efficiency and make an uproar
The principal element of sound.
Invention content
Goal of the invention：The purpose of this utility model is to provide a kind of high power centrifugation for prior art deficiency and defect
Wind turbine, technical solution provided by the utility model have good noise reduction.
Technical solution：To achieve the goals above, technical solution used by the utility model is：A kind of high power centrifugation
Wind turbine, including shell, motive bearing, blade, driving member and accelerator.
It is equipped with cavity in shell, motive bearing, driving member and accelerator are equipped in cavity, if accelerator surface is equipped with cured leaf
Piece, the blade is discrete to be distributed on accelerator outer surface, and accelerator is Pneumatic accelerator.
Line shaft is cylindrical-shaped structure, and line shaft surface is equipped with card slot, and the card slot is groove-like.
Accelerator is at least three-level Pneumatic accelerator.
Accelerator power end is equipped with lubricating cavity, and the lubricating cavity is cylindrical cavity, and lubricating cavity top is equipped with oil filler.
As an optimization, several unidirectional sound attenuation holes are set on driving member inner wall, and sound attenuation hole inner wall is coarse shape.
Advantageous effect：Compared with prior art, advantage is the utility model：
A kind of high power centrifugal blower of the utility model passes through the combination of motive bearing and driving member, effectively abatement transmission
Radial load on part reduces noise from source, and the utility model is simple in structure, easy to use, is widely used in machinery and adds
Industrial and commercial bank's industry.
Description of the drawings
To describe the technical solutions in the embodiments of the present invention more clearly, make required in being described below to embodiment
Attached drawing is briefly described.Obviously, described attached drawing is a part of the embodiment of the present invention, rather than is all implemented
Example, those skilled in the art without creative efforts, can also be obtained according to these attached drawings other designs.
Scheme and attached drawing.
Fig. 1 is a kind of structural schematic diagram of high power centrifugal blower of the utility model.
In figure：1, motive bearing；2, blade；3, driving member；4, accelerator.
Specific implementation mode
With reference to embodiment, the utility model is further illustrated.
Embodiment 1
As shown in Figure 1, a kind of high power centrifugal blower, including shell, motive bearing 1, blade 2, driving member 3 and accelerator
4。
It is equipped with cavity in shell, motive bearing 1, driving member 3 and accelerator 4 are equipped in cavity, if 4 surface of accelerator is equipped with
Cured leaf piece 2, the blade 2 is discrete to be distributed on 4 outer surface of accelerator, and accelerator 4 is Pneumatic accelerator 4.
Line shaft is cylindrical-shaped structure, and line shaft surface is equipped with card slot, and the card slot is groove-like.
Accelerator 4 is at least three-level Pneumatic accelerator 4.
4 power end of accelerator is equipped with lubricating cavity, and the lubricating cavity is cylindrical cavity, and lubricating cavity top is equipped with oil filler.
Several unidirectional sound attenuation holes are set on 3 inner wall of driving member, and sound attenuation hole inner wall is coarse shape.
It is enlightenment, through the above description, related work people with the above-mentioned desirable embodiment according to the utility model
Member can carry out various changes and amendments in the range of without departing from this item utility model technological thought completely.This practicality
Novel technical scope is not limited to the contents of the specification, it is necessary to determine that its is technical according to right
Range.
Claims (5)
1. a kind of high power centrifugal blower, including shell, motive bearing (1), blade (2), driving member (3) and accelerator (4),
It is characterized in that：It is equipped with cavity in shell, motive bearing (1), driving member (3) and accelerator (4), accelerator (4) are equipped in cavity
Surface is equipped with several blades (2), and the blade (2) is discrete to be distributed on accelerator (4) outer surface, and accelerator (4) is pneumatic adds
Fast device (4).
2. a kind of high power centrifugal blower according to claim 1, it is characterised in that：Line shaft is cylindrical-shaped structure, is moved
Power axis surface is equipped with card slot, and the card slot is groove-like.
3. a kind of high power centrifugal blower according to claim 1, it is characterised in that：Accelerator (4) is at least three-level gas
Dynamic accelerator (4).
4. a kind of high power centrifugal blower according to claim 1, it is characterised in that：Accelerator (4) power end is equipped with profit
Sliding chamber, the lubricating cavity are cylindrical cavity, and lubricating cavity top is equipped with oil filler.
5. a kind of high power centrifugal blower according to claim 1, it is characterised in that：Driving member (3) on inner wall if be arranged
Unidirectional sound attenuation hole is done, sound attenuation hole inner wall is coarse shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201791.8U CN207830188U (en) | 2018-02-06 | 2018-02-06 | A kind of high power centrifugal blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820201791.8U CN207830188U (en) | 2018-02-06 | 2018-02-06 | A kind of high power centrifugal blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207830188U true CN207830188U (en) | 2018-09-07 |
Family
ID=63397023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820201791.8U Expired - Fee Related CN207830188U (en) | 2018-02-06 | 2018-02-06 | A kind of high power centrifugal blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207830188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194393A (en) * | 2018-02-06 | 2018-06-22 | 姜堰区卫姐管件厂 | A kind of high power centrifugal blower |
-
2018
- 2018-02-06 CN CN201820201791.8U patent/CN207830188U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108194393A (en) * | 2018-02-06 | 2018-06-22 | 姜堰区卫姐管件厂 | A kind of high power centrifugal blower |
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180907 Termination date: 20190206 |
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| CF01 | Termination of patent right due to non-payment of annual fee |