CN108302068A - A kind of portable blower noise-reduction device - Google Patents
A kind of portable blower noise-reduction device Download PDFInfo
- Publication number
- CN108302068A CN108302068A CN201810366130.5A CN201810366130A CN108302068A CN 108302068 A CN108302068 A CN 108302068A CN 201810366130 A CN201810366130 A CN 201810366130A CN 108302068 A CN108302068 A CN 108302068A
- Authority
- CN
- China
- Prior art keywords
- hush pipe
- sound
- acoustical panel
- interior
- noise
- 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.)
- Pending
Links
- 239000011358 absorbing material Substances 0.000 claims abstract description 15
- 239000011148 porous material Substances 0.000 claims abstract description 7
- 229910000831 Steel Inorganic materials 0.000 claims description 3
- 239000010959 steel Substances 0.000 claims description 3
- 239000006185 dispersion Substances 0.000 abstract description 2
- 239000003245 coal Substances 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 238000009423 ventilation Methods 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000008054 signal transmission Effects 0.000 description 1
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21F—SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINING IN OR OF MINES OR TUNNELS
- E21F1/00—Ventilation of mines or tunnels; Distribution of ventilating currents
- E21F1/006—Ventilation at the working face of galleries or tunnels
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
- F04D29/664—Sound attenuation by means of sound absorbing material
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Mining & Mineral Resources (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Exhaust Silencers (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a kind of portable blower noise-reduction devices, include interior hush pipe, outer hush pipe, the both ends of outer hush pipe are connected separately with forward flange, rear flange, and outer hush pipe one end is connected by forward flange with the air inlet of portable blower, and interior hush pipe is fixed on outer noise reduction tube inner chamber by support plate；Outer hush pipe includes outer casing, internal layer acoustical panel, and gap filling has sound-absorbing material layer between outer casing and internal layer acoustical panel；The barrel of interior hush pipe is acoustical panel, and the both ends of interior hush pipe are acoustical panel, and interior hush pipe lumen loading has sound-absorbing material layer.The present invention utilizes perforated plate and sound-absorbing porous material, dispersion and the high-frequency noises for absorbing portable blower, to achieve the effect that sound-deadening and noise-reducing.
Description
Technical field
The present invention relates to underground coal mine field of ventilation equipment, particularly belong to a kind of portable blower noise-reduction device.
Background technology
Portable blower is underground coal mine ventilation capital equipment, is distributed widely in underworkings.It is generated strongly in operation process
Pneumatic noise, mechanical noise and electromagnetic noise, are underground coal mine Main Noise Sources, and A sound levels endanger duty up to 100 decibels or more
Work health, influences signal transmission, and noise makes one not hear sign and various restricted speed signals before accident, is easy to cause industrial injury thing
Therefore it influences to keep the safety in production.
Invention content
The object of the present invention is to provide a kind of portable blower noise-reduction devices, utilize perforated plate and sound-absorbing porous material, dispersion
With absorb portable blower high-frequency noises, to achieve the effect that sound-deadening and noise-reducing.
Technical scheme is as follows：
A kind of portable blower noise-reduction device includes interior hush pipe, outer hush pipe, and gap is between interior hush pipe and outer hush pipe
Gas channel, the both ends of outer hush pipe are connected separately with forward flange, rear flange, and outer hush pipe one end passes through forward flange and portable blower
Air inlet is connected, and interior hush pipe is fixedly installed on by support plate in outer noise reduction tube inner chamber；Outer hush pipe includes outer shell
Body, internal layer acoustical panel, gap filling has sound-absorbing material layer between outer casing and internal layer acoustical panel；The barrel of interior hush pipe is to disappear
The both ends of soundboard, interior hush pipe are respectively equipped with acoustical panel, and interior hush pipe lumen loading has sound-absorbing material layer.
The internal layer acoustical panel of the outer hush pipe is perforated plate, the suction of gap filling between outer casing and internal layer acoustical panel
Sound material layer is made of sound-absorbing porous material.
The barrel of the interior hush pipe, the acoustical panel at both ends are perforated plate, and the sound-absorbing material layer of interior noise reduction tube inner chamber is more
Hole sound absorbing material is made.
The outer casing is made of steel plate.
The present invention uses inside and outside two layers of noise reduction barrel structure, is carried out respectively to pneumatic noise using interior hush pipe, outer hush pipe
Sound-absorbing processing, abatvoix uses perforated plate, while the sound-absorbing material layer of interior hush pipe, outer noise reduction tube inner chamber is porous sound absorption material
Material achievees the effect that sound-deadening and noise-reducing to disperse and absorb the high-frequency noises of portable blower.The present invention's is reasonable in design, peace
Fill easy to maintain, level of noise can be reduced to 85 decibels or less after installation.
Description of the drawings
Fig. 1 is the structural diagram of the present invention.
Specific implementation mode
Referring to attached drawing, a kind of portable blower noise-reduction device includes interior hush pipe 1, outer hush pipe 2, interior hush pipe 1 with it is outer
Gap is gas channel 12 between hush pipe 2, and the both ends of outer hush pipe 2 are connected separately with forward flange 3, rear flange 4, outer hush pipe
2 one end are connected by forward flange 3 and the air inlet of portable blower, and interior hush pipe 1 is fixedly installed on outer hush pipe 2 by support plate 5
In inner cavity；Outer hush pipe 2 includes outer casing 6, internal layer acoustical panel 7, and gap is filled out between outer casing 6 and internal layer acoustical panel 7
Filled with sound-absorbing material layer 8；The barrel 9 of interior hush pipe 1 is acoustical panel, and the both ends 10 of interior hush pipe 1 are respectively equipped with acoustical panel, inside disappear
1 lumen loading of sound cylinder has sound-absorbing material layer 11；The internal layer acoustical panel 7 of outer hush pipe 2 is perforated plate, and outer casing 6 disappears with internal layer
The sound-absorbing material layer 8 of gap filling is made of sound-absorbing porous material between soundboard 7；The barrel 9 of interior hush pipe 1, both ends 10 disappear
Soundboard is perforated plate, and the sound-absorbing material layer 11 of 1 inner cavity of interior hush pipe is made of sound-absorbing porous material；Outer casing 6 is by steel plate
It is made.
Claims (4)
1. a kind of portable blower noise-reduction device includes interior hush pipe, outer hush pipe, gap between interior hush pipe and outer hush pipe
For gas channel, which is characterized in that the both ends of outer hush pipe are connected separately with forward flange, rear flange, and outer hush pipe one end passes through
The air inlet of forward flange and portable blower is connected, and interior hush pipe is fixedly installed on by support plate in outer noise reduction tube inner chamber；Outer noise reduction
Cylinder includes outer casing, internal layer acoustical panel, and gap filling has sound-absorbing material layer between outer casing and internal layer acoustical panel；Inside disappear
The barrel of sound cylinder is acoustical panel, and the both ends of interior hush pipe are respectively equipped with acoustical panel, and interior hush pipe lumen loading has sound-absorbing material layer.
2. portable blower noise-reduction device according to claim 1, which is characterized in that the internal layer acoustical panel of the outer hush pipe is
Perforated plate, the sound-absorbing material layer of gap filling is made of sound-absorbing porous material between outer casing and internal layer acoustical panel.
3. portable blower noise-reduction device according to claim 1, which is characterized in that the barrel of the interior hush pipe, both ends
Acoustical panel is perforated plate, and the sound-absorbing material layer of interior noise reduction tube inner chamber is made of sound-absorbing porous material.
4. portable blower noise-reduction device according to claim 1, which is characterized in that the outer casing is by steel plate system
At.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366130.5A CN108302068A (en) | 2018-04-23 | 2018-04-23 | A kind of portable blower noise-reduction device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810366130.5A CN108302068A (en) | 2018-04-23 | 2018-04-23 | A kind of portable blower noise-reduction device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108302068A true CN108302068A (en) | 2018-07-20 |
Family
ID=62848511
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810366130.5A Pending CN108302068A (en) | 2018-04-23 | 2018-04-23 | A kind of portable blower noise-reduction device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108302068A (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435441A (en) * | 2008-12-03 | 2009-05-20 | 中国矿业大学 | Mining blower silencer |
| CN201306317Y (en) * | 2008-12-03 | 2009-09-09 | 中国矿业大学 | Air compressor silencer for mines |
| JP2011122488A (en) * | 2009-12-09 | 2011-06-23 | Honda Motor Co Ltd | Muffler |
| CN206570972U (en) * | 2016-12-21 | 2017-10-20 | 山西职业技术学院 | A kind of construction material with high-efficiency sound-absorbing function |
| CN208185078U (en) * | 2018-04-23 | 2018-12-04 | 安徽新园矿山设备制造有限责任公司 | A kind of portable blower noise-reduction device |
-
2018
- 2018-04-23 CN CN201810366130.5A patent/CN108302068A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101435441A (en) * | 2008-12-03 | 2009-05-20 | 中国矿业大学 | Mining blower silencer |
| CN201306317Y (en) * | 2008-12-03 | 2009-09-09 | 中国矿业大学 | Air compressor silencer for mines |
| JP2011122488A (en) * | 2009-12-09 | 2011-06-23 | Honda Motor Co Ltd | Muffler |
| CN206570972U (en) * | 2016-12-21 | 2017-10-20 | 山西职业技术学院 | A kind of construction material with high-efficiency sound-absorbing function |
| CN208185078U (en) * | 2018-04-23 | 2018-12-04 | 安徽新园矿山设备制造有限责任公司 | A kind of portable blower noise-reduction device |
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| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination |