CN207634400U - Booster noise reduction end shield - Google Patents
Booster noise reduction end shield Download PDFInfo
- Publication number
- CN207634400U CN207634400U CN201721732749.0U CN201721732749U CN207634400U CN 207634400 U CN207634400 U CN 207634400U CN 201721732749 U CN201721732749 U CN 201721732749U CN 207634400 U CN207634400 U CN 207634400U
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- CN
- China
- Prior art keywords
- air inlet
- noise reduction
- current collector
- booster
- end shield
- 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.)
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Abstract
The utility model is related to a kind of booster noise reduction end shields, including current collector, noise reduction layer, air inlet grid, hoisting ring, wherein, radial air inlet is equipped on the excircle of current collector, the radial direction air inlet is laid with air inlet grid, the rear portion of current collector is equipped with taper and enters the wind communication port, and noise reduction layer is deposited on the inner wall of current collector shell.Using the noise reduction end shield, afflux air inlet is the radial air inlet being laid on current collector excircle, due to changing air inlet direction, inlet -duct area is increased, air inlet windage is reduced, the axial nothing of noise is prevented to block propagation, absorption area is thereby increased, ventilation blower import noise is made to be less than 85dB（A）, noise reduction is notable, causes working environment noise big to efficiently solve the problems, such as that air is led directly in booster import.
Description
Technical field
The utility model is related to ventilation blower noise reduction technical field more particularly to a kind of booster noise reduction end shields.
Background technology
Currently, the widely used force ventilation mode on China's mine, is adopted fresh air feeding by booster
Pick face and chamber ensure the air circulation of operating environment and the employment security of operating personnel.But traditional booster is because of rotating speed
Higher, rotational noise and eddy current crack are larger, influence the employment security of miner.Booster is usually by current collector, level-one
Air is led directly in host, two level host and diffuser composition, the booster import of such structure type, and noise is propagate directly to
In environment, noise in underworkings is caused to increase, it is simple by increasing shell silencing plate and extending axial hush pipe air duct length drop
Effect of making an uproar unobvious.
Utility model content
The purpose of this utility model be to provide it is a kind of integrating noise reduction and afflux, and can effectively reduce air-blower noise
Booster noise reduction end shield.
Realize that the purpose of this utility model is adopted the technical scheme that：The noise reduction end shield include current collector, noise reduction layer, into
Air grid lattice, hoisting ring, wherein radial air inlet is equipped on the excircle of current collector, which is laid with air inlet
Grid, the rear portion of current collector are equipped with taper and enter the wind communication port, and noise reduction layer is deposited on the inner wall of current collector shell.
The area of the radial direction air inlet is 1.5~1.8 times to air-admitting surface of former collector shaft.
The unilateral cone angle of the taper air inlet communication port is 30 °.
The noise reduction layer is super glass wool material, thickness 50mm, packed density 35kg/m3。
The air inlet grid is metallic material product.
According to booster noise reduction end shield made of said program, afflux air inlet is to be laid in current collector excircle
On radial air inlet, due to change air inlet direction, increase air-admitting surface, reduce air inlet windage, prevent noise
It is axial to thereby increase absorption area without propagation is blocked, so that the import noise of ventilation blower is less than 85dB（A）, noise reduction is notable,
Cause working environment noise big to efficiently solve the problems, such as that booster air inlet leads directly to air.The booster disappears
Sound end shield structure design advantages of simple, simple installation, dependable performance.
Description of the drawings
Fig. 1 is the utility model structure diagram；
Fig. 2 is the vertical view of Fig. 1.
Specific implementation mode
Referring to Fig. 1, Fig. 2, the booster noise reduction end shield of the utility model, which includes current collector 1, noise reduction
Layer 2, air inlet grid 3, hoisting ring 4, wherein radial air inlet 5 is equipped on the excircle of current collector 1, at the radial direction air inlet 5
It is laid with the air inlet grid 3 of metallic material product, the rear portion of current collector 1 is equipped with taper and enters the wind communication port 6, the face of radial air inlet
Product is 1.5~1.8 times to air-admitting surface of former collector shaft, and the unilateral cone angle that taper enters the wind communication port 6 is 30 °.In afflux
It is deposited with noise reduction layer 2 on the inner wall of 1 shell of device, noise reduction layer 2 is super glass wool material, thickness 50mm, and packed density is
35kg/m3。
In use, assembled booster noise reduction end shield is lifted by hoisting ring 4 and connect peace with host import
Dress, starting ventilation blower can put into operation use.Since the area of radial air inlet 5 is not less than 1 air inlet through hollow shaft mouth of former current collector
1.5 times of area, 1 rear portion of current collector use unilateral cone angle to enter the wind communication port 6 for 30 ° of best taper, ensure that air inlet is unobstructed,
Reduce ventilation resistance and eddy current crack.Due to having laid air inlet grid 3 at radial air inlet 5, current collector 1 is allowed airflow into
When be divided into several little airflows, reduce noise；In addition noise reduction is integrally designed with afflux, and ventilation blower airintake direction changes
For radial direction, that is, cost is reduced, and solves the problems, such as that fan noise is big, noise transmission is fast.
Claims (5)
1. a kind of booster noise reduction end shield, it is characterised in that：The noise reduction end shield include current collector, noise reduction layer, air inlet grid,
Hoisting ring, wherein radial air inlet is equipped on the excircle of current collector, which is laid with air inlet grid, collects
The rear portion for flowing device is equipped with taper air inlet communication port, and noise reduction layer is deposited on the inner wall of current collector shell.
2. booster noise reduction end shield according to claim 1, it is characterised in that：It is described radial direction air inlet area be
1.5~1.8 times to air-admitting surface of former collector shaft.
3. booster noise reduction end shield according to claim 1, it is characterised in that：The list of the taper air inlet communication port
Side cone angle is 30 °.
4. booster noise reduction end shield according to claim 1, it is characterised in that：The noise reduction layer is super glass wool
Material, thickness 50mm, packed density 35kg/m3。
5. booster noise reduction end shield according to claim 1, it is characterised in that：The air inlet grid is metal material
Product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732749.0U CN207634400U (en) | 2017-12-13 | 2017-12-13 | Booster noise reduction end shield |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721732749.0U CN207634400U (en) | 2017-12-13 | 2017-12-13 | Booster noise reduction end shield |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207634400U true CN207634400U (en) | 2018-07-20 |
Family
ID=62862720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721732749.0U Active CN207634400U (en) | 2017-12-13 | 2017-12-13 | Booster noise reduction end shield |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207634400U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007143A (en) * | 2021-03-26 | 2021-06-22 | 平安开诚智能安全装备有限责任公司 | Ultra-low noise silencer for air inlet end of fan |
-
2017
- 2017-12-13 CN CN201721732749.0U patent/CN207634400U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113007143A (en) * | 2021-03-26 | 2021-06-22 | 平安开诚智能安全装备有限责任公司 | Ultra-low noise silencer for air inlet end of fan |
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| GR01 | Patent grant |