CN204003648U - A kind of blower fan import baffler - Google Patents
A kind of blower fan import baffler Download PDFInfo
- Publication number
- CN204003648U CN204003648U CN201420451343.5U CN201420451343U CN204003648U CN 204003648 U CN204003648 U CN 204003648U CN 201420451343 U CN201420451343 U CN 201420451343U CN 204003648 U CN204003648 U CN 204003648U
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- Prior art keywords
- baffler
- semicircle
- cylinder
- acoustical panel
- junction pipe
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- 230000008676 import Effects 0.000 title claims abstract description 23
- 230000003584 silencer Effects 0.000 claims abstract description 37
- 230000015572 biosynthetic process Effects 0.000 claims abstract description 4
- 229910000831 Steel Inorganic materials 0.000 claims description 16
- 239000010959 steel Substances 0.000 claims description 16
- 229920000742 Cotton Polymers 0.000 claims description 10
- 230000030279 gene silencing Effects 0.000 claims description 9
- 208000002925 dental caries Diseases 0.000 claims description 3
- 230000009467 reduction Effects 0.000 abstract description 6
- 238000009434 installation Methods 0.000 abstract description 5
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 3
- 239000011358 absorbing material Substances 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 239000000428 dust Substances 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
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- Exhaust Silencers (AREA)
Abstract
The utility model discloses a kind of blower fan import baffler, comprise muffler cover, baffler seat; Muffler cover comprises the cylinder with noise-reducing structure of an end opening, is provided with semi-cylindrical shaped dividing plate in cylinder, and the both sides of semi-cylindrical shaped dividing plate are fixed on cylinder inner wall by the first horizontal baffle; Baffler seat comprises junction pipe, and junction pipe is provided with annular acoustical panel near the outer wall of left end, and annular acoustical panel is provided with the first semicircular cylinder silencer wall; Junction pipe left end is provided with semicircle acoustical panel, the arc end of semicircle acoustical panel stretches out junction pipe upper end and is provided with the second semicircular cylinder silencer wall at its arc end, the rectilinear end of semicircle acoustical panel is provided with the second horizontal baffle, and the other end of the second horizontal baffle is provided with semicircle dividing plate; The front end of baffler seat stretches into formation intake grill, exhaust outlet and roundabout air intake passage in muffler cover.The utility model compact structure, processes easy for installation; Compare with common comparable size baffler, noise reduction improves more than 10 decibels.
Description
Technical field
The utility model relates to a kind of blower fan import baffler.
Background technique
Baffler is to stop sound transmission and a kind of device that can make air-flow normally pass through, and using baffler is the important measures of eliminating noise in air.Baffler is generally arranged in the vent systems of the equipment such as blower fan, plays the effect that reduces noise.That existing muffler for fan has advantages of is lightweight, volume is little, although can remove the noise of low frequency, for the relatively large large discharge value blower fan of noise, noise reduction is not clearly, can not meet the environmental requirement of enterprise in producing.General resistive baffler absorbs noise by increasing noise reduction area, can only be by increasing length and the diameter of baffler and increase noise reduction area, some client is restricted to the installing space of baffler, has limited the length of baffler, and this has just limited the erasure effect of baffler.
Summary of the invention
The purpose of this utility model is for deficiency of the prior art, and a kind of blower fan import baffler is provided.
The purpose of this utility model is achieved through the following technical solutions:
A blower fan import baffler, comprises muffler cover, baffler seat; Described muffler cover comprises the cylinder with noise-reducing structure of an end opening, is provided with it coaxial semi-cylindrical shaped dividing plate in cylinder, and the both sides of semi-cylindrical shaped dividing plate are fixed on cylinder inner wall by the first horizontal baffle, and cylinder is separated into two independently cavitys; Described baffler seat comprises junction pipe, and junction pipe is provided with annular acoustical panel near the outer wall of left end, and annular acoustical panel is provided with the first semicircular cylinder silencer wall coaxial with junction pipe; Junction pipe left end is provided with semicircle acoustical panel, the arc end of semicircle acoustical panel stretches out junction pipe upper end, and be provided with the second semicircular cylinder silencer wall coaxial with junction pipe at its arc end, the rectilinear end of semicircle acoustical panel is provided with the second horizontal baffle, and the other end of the second horizontal baffle is provided with semicircle dividing plate; The axle of junction pipe of described baffler seat and the axle of the cylinder of muffler cover are positioned at same straight line, and the first semicircular cylinder silencer wall of baffler seat front end, the second semicircular cylinder silencer wall, the second horizontal baffle, semicircle dividing plate stretch into formation intake grill, exhaust outlet and roundabout air intake passage in muffler cover.
Described intake grill and exhaust outlet are in the same side, and at intake grill, place is provided with filter screen, for stoping dust to enter air intake passage; Described exhaust outlet is provided with flange, is convenient to install fixing with air inlet.
Described muffler cover and baffler seat are bolted, and described bolt is connected and fixed the bottom of muffler cover and the second horizontal baffle of baffler seat.Further, in described bolt both sides, be provided with strut, described strut is separately fixed at the semi-cylindrical shaped dividing plate of muffler cover, on the semicircle dividing plate of baffler seat, further improve the join strength of baffler, prevents baffler distortion.
Described bolt is preferably butterfly type bolt, more efficient when hand is twisted installation.
Described annular acoustical panel, the first semicircular cylinder silencer wall, semicircle acoustical panel, the second semicircular cylinder silencer wall form by being located at the silencing cotton being provided with between outside steel plate, inner punched-plate and steel plate and punched-plate.
The cylinder of described muffler cover forms by being located at the silencing cotton being provided with between outside steel plate, inner punched-plate and steel plate and punched-plate.
Described steel plate is preferably 3MM steel plate.
Described semi-cylindrical shaped dividing plate, the first horizontal baffle, the second horizontal baffle, semicircle dividing plate are silencing cotton and are clipped in the acoustical panel between two-layer punched-plate, are conducive to further in air intake passage, absorb noise.
The diameter of described semicircle acoustical panel is greater than the diameter of junction pipe, and the center of circle of semicircle acoustical panel and the center of circle of junction pipe are in same level straight line.
The both sides of the second described horizontal baffle are arc structure, and the diameter of circular arc is 1:1 with the ratio of the internal diameter of the semi-cylindrical shaped dividing plate of muffler cover, are conducive to the second horizontal baffle seamless link of the first horizontal baffle and the baffler seat of muffler cover.
The ratio of first external diameter of semicircular cylinder silencer wall of described baffler seat and the internal diameter of the cylinder of muffler cover is 1:1, when the axle of junction pipe of baffler seat and the axle of the cylinder of muffler cover are positioned at same straight line, the outside of the first cylinder silencer wall is close on the punched-plate in cylinder.
The internal diameter of the second semicircular cylinder silencer wall of described baffler seat is greater than the external diameter of the semi-cylindrical shaped dividing plate of muffler cover, and the external diameter of the second semicircular cylinder silencer wall is less than the internal diameter of the cylinder of muffler cover.
The diameter of described semicircle dividing plate is greater than the diameter of junction pipe, is less than the internal diameter of the first semicircular cylinder silencer wall, makes semicircle plate washer cover the lower openings of junction pipe left end, further forms roundabout air intake passage.
Compared to the prior art, the beneficial effects of the utility model:
The utility model blower fan import muffler structure is compact, processes easy for installation.
The utility model blower fan import baffler is impedance complex formula baffler, by muffler cover and baffler seat, be cross-linked and between intake grill and exhaust outlet, form roundabout air intake passage, the cross section of air intake passage is constantly to change, air-flow enters after air intake passage, gas flow rate constantly changes, simultaneously because passage surrounding is equipped with sound absorbing material, by extending the length of air intake passage, expand the area that noise contacts with sound absorbing material, extend the time that noise contacts with sound absorbing material, can improve greatly erasure effect.Compare with common comparable size baffler, noise reduction improves more than 10 decibels, can reduce greatly the impact of noise on working environment.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model blower fan import baffler;
Fig. 2 is the right elevation of the muffler cover of Fig. 1 blower fan import baffler;
Fig. 3 is the left view of the baffler seat of Fig. 1 blower fan import baffler;
In figure, 1-muffler cover, 2-baffler seat, 3-punched-plate, 4-silencing cotton, 5-cylinder, 6-semi-cylindrical shaped dividing plate, 7-the first horizontal baffle, 8-junction pipe, 9-annular acoustical panel, 10-the first semicircular cylinder silencer wall, the semicircle acoustical panel of 11-, 12-the second semicircular cylinder silencer wall, 13-the second horizontal baffle, the semicircle dividing plate of 14-, 15-bolt, 16-strut, 17-flange, 18-intake grill, 19-exhaust outlet.
Embodiment
Below in conjunction with the drawings and specific embodiments, the technical solution of the utility model is described further.
As shown in Figure 1,2 and 3, a kind of blower fan import baffler, comprises muffler cover 1, baffler seat 2; Described muffler cover 1 comprises the cylinder with noise-reducing structure 5 of an end opening, in cylinder 5, be provided with it coaxial semi-cylindrical shaped dividing plate 6, the both sides of semi-cylindrical shaped dividing plate 6 are fixed on cylinder inner wall by the first horizontal baffle 7, and cylinder 5 is separated into two independently cavitys; Described baffler seat 2 comprises junction pipe 8, and junction pipe 8 is provided with annular acoustical panel 9 near the outer wall of left end, and annular acoustical panel 9 is provided with the first semicircular cylinder silencer wall 10 coaxial with junction pipe 8; Junction pipe 8 left ends are provided with the semicircle acoustical panel 11 that diameter is greater than junction pipe 8 diameters, the semicircle center of circle of acoustical panel 11 and the center of circle of junction pipe 8 are in same level straight line, the arc end of semicircle acoustical panel 11 stretches out junction pipe 8 upper ends, and be provided with the second semicircular cylinder silencer wall 12 coaxial with junction pipe 8 at its arc end, the other end that the rectilinear end of semicircle acoustical panel 11 is provided with the second horizontal baffle 13, the second horizontal baffles 13 is provided with semicircle dividing plate 14; The axle of the axle of the junction pipe 8 of described baffler seat 2 and the cylinder of muffler cover 1 is positioned at same straight line, both connect by bolt 15, the outside of the first cylinder silencer wall 10 is close on the punched-plate in cylinder 5, and the first semicircular cylinder silencer wall 10 of baffler seat 2 front ends, the second semicircular cylinder silencer wall 12, the second horizontal baffle 13, semicircle dividing plate 14 stretch into the roundabout air intake passage that the interior formation intake grill 18 of muffler cover 1, exhaust outlet 19 and cross section constantly change; Described intake grill 18 is with exhaust outlet 19 in the same side, and at intake grill, 18 places are provided with filter screen, for stoping dust to enter air intake passage; Described exhaust outlet 19 is provided with flange 17, is convenient to install fixing with air inlet.
Described bolt 15 is connected and fixed the bottom of muffler cover 1 and the second horizontal baffle 13 of baffler seat 2; In described bolt 15 both sides, be provided with strut 16, strut 16 is separately fixed at the semi-cylindrical shaped dividing plate 6 of muffler cover 1, on the semicircle dividing plate 14 of baffler seat 2, further improve the join strength of baffler, prevents baffler distortion.
Described bolt 15 is butterfly type bolt, more efficient when hand is twisted installation.
Described cylinder 5 by be located at outside steel plate, inner punched-plate 3 and be located at steel plate and punched-plate 3 between silencing cotton 4 form; Described annular acoustical panel 9, the first semicircular cylinder silencer wall 10, semicircle acoustical panel 11, the second semicircular cylinder silencer wall 12 form by being located at the silencing cotton 4 being provided with between outside steel plate, inner punched-plate 3 and steel plate and punched-plate.Described steel plate is preferably 3MM steel plate.
Described semi-cylindrical shaped dividing plate 6, the first horizontal baffle 7, the second horizontal baffle 13, semicircle dividing plate 14 are silencing cotton and are clipped in the acoustical panel between two-layer punched-plate, are conducive to further in air intake passage, absorb noise.
The both sides of the second described horizontal baffle 13 are arc structure, and the diameter of circular arc is 1:1 with the ratio of the internal diameter of the semi-cylindrical shaped dividing plate 6 of muffler cover 1, are conducive to the second horizontal baffle 13 seamless links of the first horizontal baffle 7 and the baffler seat 2 of muffler cover 1.
The external diameter of the first semicircular cylinder silencer wall 10 of described baffler seat 2 is 1:1 with the ratio of the internal diameter of the cylinder 5 of muffler cover 1.
The internal diameter of the second semicircular cylinder silencer wall 12 of described baffler seat 2 is greater than the external diameter of the semi-cylindrical shaped dividing plate 6 of muffler cover 1, and the external diameter of the second semicircular cylinder silencer wall 12 is less than the internal diameter of the cylinder 5 of muffler cover 1.
The diameter of described semicircle dividing plate 14 is greater than the diameter of junction pipe 8, is less than the internal diameter of the first semicircular cylinder silencer wall 12, makes semicircle plate washer 14 cover the lower openings of junction pipe 8 left ends.
The utility model blower fan import baffler is impedance complex formula baffler, and compact structure, processes easy for installation.By muffler cover and baffler seat, be cross-linked and between intake grill and exhaust outlet, form roundabout air intake passage, the cross section of air intake passage is constantly to change, air-flow enters after air intake passage, gas flow rate constantly changes, because passage surrounding is equipped with sound absorbing material, by extending the length of air intake passage, expand the area that noise contacts with sound absorbing material simultaneously, extend the time that noise contacts with sound absorbing material, can improve greatly erasure effect.Compare with common comparable size baffler, noise reduction improves more than 10 decibels, can reduce greatly the impact of noise on working environment.
Claims (10)
1. a blower fan import baffler, is characterized in that it comprises muffler cover, baffler seat; Described muffler cover comprises the cylinder with noise-reducing structure of an end opening, is provided with it coaxial semi-cylindrical shaped dividing plate in cylinder, and the both sides of semi-cylindrical shaped dividing plate are fixed on cylinder inner wall by the first horizontal baffle, and cylinder is separated into two independently cavitys; Described baffler seat comprises junction pipe, and junction pipe is provided with annular acoustical panel near the outer wall of left end, and annular acoustical panel is provided with the first semicircular cylinder silencer wall coaxial with junction pipe; Junction pipe left end is provided with semicircle acoustical panel, the arc end of semicircle acoustical panel stretches out junction pipe upper end, and be provided with the second semicircular cylinder silencer wall coaxial with junction pipe at its arc end, the rectilinear end of semicircle acoustical panel is provided with the second horizontal baffle, and the other end of the second horizontal baffle is provided with semicircle dividing plate; The axle of junction pipe of described baffler seat and the axle of the cylinder of muffler cover are positioned at same straight line, and the first semicircular cylinder silencer wall of baffler seat front end, the second semicircular cylinder silencer wall, the second horizontal baffle, semicircle dividing plate stretch into formation intake grill, exhaust outlet and roundabout air intake passage in muffler cover.
2. blower fan import baffler according to claim 1, is characterized in that described intake grill and exhaust outlet are in the same side, and at intake grill, place is provided with filter screen, and described exhaust outlet is provided with flange.
3. blower fan import baffler according to claim 1, is characterized in that described muffler cover and baffler seat are bolted; Described bolt both sides are provided with strut, and described strut is separately fixed at the semi-cylindrical shaped dividing plate of muffler cover, the semicircle dividing plate of baffler seat.
4. blower fan import baffler according to claim 1, the cylinder that it is characterized in that described muffler cover forms by being located at the silencing cotton being provided with between outside steel plate, inner punched-plate and steel plate and punched-plate; Described annular acoustical panel, the first semicircular cylinder silencer wall, semicircle acoustical panel, the second semicircular cylinder silencer wall form by being located at the silencing cotton being provided with between outside steel plate, inner punched-plate and steel plate and punched-plate.
5. blower fan import baffler according to claim 1, is characterized in that described semi-cylindrical shaped dividing plate, the first horizontal baffle, the second horizontal baffle, semicircle dividing plate are silencing cotton and are clipped in the acoustical panel between two-layer punched-plate.
6. blower fan import baffler according to claim 1, is characterized in that the diameter of described semicircle acoustical panel is greater than the diameter of junction pipe, and the center of circle of semicircle acoustical panel and the center of circle of junction pipe are in same level straight line.
7. blower fan import baffler according to claim 1, is characterized in that the both sides of the second described horizontal baffle are arc structure, and the diameter of circular arc is 1:1 with the ratio of the internal diameter of the semi-cylindrical shaped dividing plate of muffler cover.
8. blower fan import baffler according to claim 1, is characterized in that described first external diameter of semicircular cylinder silencer wall of baffler seat and the ratio of the internal diameter of the cylinder of muffler cover are 1:1, and the outside of the first cylinder silencer wall is close on the punched-plate in cylinder.
9. blower fan import baffler according to claim 1, it is characterized in that the internal diameter of the second semicircular cylinder silencer wall of described baffler seat is greater than the external diameter of the semi-cylindrical shaped dividing plate of muffler cover, the external diameter of the second semicircular cylinder silencer wall is less than the internal diameter of the cylinder of muffler cover.
10. blower fan import baffler according to claim 1, is characterized in that the diameter of described semicircle dividing plate is greater than the diameter of junction pipe, is less than the internal diameter of the first semicircular cylinder silencer wall, and described semicircle plate washer covers the lower openings of junction pipe left end.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451343.5U CN204003648U (en) | 2014-08-11 | 2014-08-11 | A kind of blower fan import baffler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420451343.5U CN204003648U (en) | 2014-08-11 | 2014-08-11 | A kind of blower fan import baffler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204003648U true CN204003648U (en) | 2014-12-10 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420451343.5U Expired - Lifetime CN204003648U (en) | 2014-08-11 | 2014-08-11 | A kind of blower fan import baffler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204003648U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104482613A (en) * | 2014-12-18 | 2015-04-01 | 天津市金中基暖通净化设备有限公司 | Damping and noise-reducing device of air conditioner outdoor unit |
| CN105167289A (en) * | 2015-10-15 | 2015-12-23 | 莫文油 | Stem-removing and sterilizing system for duck feather |
| CN105332953A (en) * | 2014-08-11 | 2016-02-17 | 宜兴优纳特机械有限公司 | Silencer for draught fan inlet |
| CN113280007A (en) * | 2021-05-27 | 2021-08-20 | 中车大连机车研究所有限公司 | Narrow-distance sound-absorbing insulator for magnetic suspension air blower |
-
2014
- 2014-08-11 CN CN201420451343.5U patent/CN204003648U/en not_active Expired - Lifetime
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105332953A (en) * | 2014-08-11 | 2016-02-17 | 宜兴优纳特机械有限公司 | Silencer for draught fan inlet |
| CN105332953B (en) * | 2014-08-11 | 2017-06-16 | 宜兴优纳特机械有限公司 | A kind of fan inlet muffler |
| CN104482613A (en) * | 2014-12-18 | 2015-04-01 | 天津市金中基暖通净化设备有限公司 | Damping and noise-reducing device of air conditioner outdoor unit |
| CN105167289A (en) * | 2015-10-15 | 2015-12-23 | 莫文油 | Stem-removing and sterilizing system for duck feather |
| CN105167289B (en) * | 2015-10-15 | 2016-10-05 | 莫文油 | The destemming decontamination system of drake feather |
| CN113280007A (en) * | 2021-05-27 | 2021-08-20 | 中车大连机车研究所有限公司 | Narrow-distance sound-absorbing insulator for magnetic suspension air blower |
| CN113280007B (en) * | 2021-05-27 | 2024-06-07 | 中车大连机车研究所有限公司 | Narrow-distance sound eliminating and insulating device for magnetic suspension blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20141210 |