CN219911291U - Dust collection fan muffler convenient to detach - Google Patents
Dust collection fan muffler convenient to detach Download PDFInfo
- Publication number
- CN219911291U CN219911291U CN202223120813.3U CN202223120813U CN219911291U CN 219911291 U CN219911291 U CN 219911291U CN 202223120813 U CN202223120813 U CN 202223120813U CN 219911291 U CN219911291 U CN 219911291U
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- CN
- China
- Prior art keywords
- noise elimination
- shell
- muffler
- impedance
- insert sheet
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- 239000000428 dust Substances 0.000 title claims abstract description 23
- 239000010410 layer Substances 0.000 claims abstract description 28
- 230000030279 gene silencing Effects 0.000 claims abstract description 24
- 239000002356 single layer Substances 0.000 claims abstract description 16
- 230000003584 silencer Effects 0.000 claims abstract description 7
- 230000008030 elimination Effects 0.000 claims description 48
- 238000003379 elimination reaction Methods 0.000 claims description 48
- 229920000742 Cotton Polymers 0.000 claims description 18
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 15
- 229910052782 aluminium Inorganic materials 0.000 claims description 15
- 238000010521 absorption reaction Methods 0.000 claims description 9
- 229910001335 Galvanized steel Inorganic materials 0.000 claims description 3
- 239000008397 galvanized steel Substances 0.000 claims description 3
- 239000002131 composite material Substances 0.000 description 2
- 239000012535 impurity Substances 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000001743 silencing effect Effects 0.000 description 2
- 230000002411 adverse Effects 0.000 description 1
- 239000004411 aluminium Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 238000001514 detection method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005265 energy consumption Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000011491 glass wool Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 230000002035 prolonged effect Effects 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
Abstract
The utility model discloses a convenient-to-detach dust collection fan silencer, which comprises a resistive silencing shell, a first resistive silencing insert and a second resistive silencing insert, wherein three single-layer sliding grooves are uniformly arranged on the inner top surface and the inner bottom surface of the resistive silencing shell at equal intervals, the width of the single-layer sliding groove at the middle position is larger than that of the single-layer sliding grooves on two sides, and a double-layer sliding groove is arranged in the middle of the resistive silencing shell.
Description
Technical Field
The utility model relates to the technical field of silencers, in particular to a silencer for a dust collection fan, which is convenient to detach.
Background
The dust collection fan is a machine which increases the pressure of gas and discharges the gas by means of the input mechanical energy, and is a driven fluid machine. The fan blows air into the system, so that great noise is generated, the health of surrounding residents and workers is adversely affected, and the noise generated by the fan is one of main objects for treating noise pollution.
The current silencer for industrial fans in the market is unreasonable in structure, serious in blockage, high in wind speed, high in regeneration noise and high in flow resistance, increases system resistance, increases energy consumption of fans, and meanwhile, because the on-site working condition and noise source frequency characteristics are not known, the silencing effect is not ideal, and for this purpose, patent grant publication No. CN 216478063U discloses an impedance composite silencer for full-band noise, which utilizes a silencing plugboard formed by a microporous aluminum plate and sound absorbing cotton, has good silencing performance in each frequency band, and achieves good silencing effect.
However, the muffler plugboard described in the prior art is fixedly installed in the resistive muffler shell, because the wind power of the dust collection fan is generally larger, the wind speed of the air flow is higher, certain impact is generated on the structure of the muffler plugboard in the muffler during air exhaust, certain dust which is not completely absorbed by impurities exists in the air flow, the impurities in the high-speed air flow enter the muffler plugboard to damage the structure of the muffler plugboard, dust is accumulated on the muffler plugboard to affect the muffler effect, and the muffler plugboard cannot be independently detached, cleaned and maintained or replaced, so that the muffler needs to be integrally replaced, the noise elimination cost of enterprises is too high, and the waste of resources is caused.
Disclosure of Invention
The utility model aims to provide a dust collection fan muffler convenient to disassemble so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions:
the utility model provides a convenient silencer for dust collecting fan who dismantles, includes resistive noise elimination shell, first impedance noise elimination inserted sheet and second impedance noise elimination inserted sheet, the interior top surface of resistive noise elimination shell and the equal interval of interior bottom surface are provided with three individual layer spout, are in intermediate position the individual layer spout width of both sides is greater than, set up double-deck spout in the middle of the resistive noise elimination shell, install first impedance noise elimination inserted sheet and second impedance noise elimination inserted sheet between the individual layer spout that double-deck spout and corresponds the setting, the both sides of second impedance noise elimination inserted sheet are provided with first impedance noise elimination inserted sheet, intermediate position is provided with first impedance noise elimination inserted sheet inner cavity in the first impedance noise elimination inserted sheet, install first super micropore aluminium in the middle of the first impedance noise elimination inserted sheet inner cavity, be located the both ends of first impedance noise elimination inserted sheet inner cavity and be provided with the cotton layer of second, the centre of second impedance noise absorption cotton layer and the both ends of third sound absorption cotton layer all are provided with second impedance noise elimination inserted sheet inner cavity, and second impedance noise elimination inserted sheet inner cavity.
As a further scheme of the utility model: arc wind-guiding strips are arranged at both ends of the first impedance silencing inserting piece and both ends of the second impedance silencing inserting piece.
As still further aspects of the utility model: the thickness of the first impedance noise elimination inserted sheet is 100mm, and the thickness of the second impedance noise elimination inserted sheet is 200mm.
As still further aspects of the utility model: the thickness of resistive noise elimination shell is 100mm, resistive noise elimination shell includes casing, first sound cotton layer and conventional perforated plate of inhaling, be provided with conventional perforated plate in the casing, be provided with first sound cotton layer of inhaling between casing and the conventional perforated plate.
As still further aspects of the utility model: the shell is a galvanized steel sheet shell, and the thickness of the shell is 2mm.
As still further aspects of the utility model: the perforation rate of the first ultra-microporous aluminum perforated plate is 1%, and the perforation rate of the second ultra-microporous aluminum perforated plate is 2%.
As still further aspects of the utility model: mounting plates are arranged at four corners of two ends of the resistive muffler shell, and mounting holes are formed in the mounting plates.
Compared with the prior art, the utility model has the beneficial effects that:
1. according to the utility model, the single-layer chute and the double-layer chute are arranged in the resistive muffler shell, the single-layer chute and the double-layer chute are matched, so that the first impedance muffler insert and the second impedance muffler insert can be conveniently installed in the resistive muffler shell, and meanwhile, when the impedance muffler insert needs to be cleaned or replaced, the corresponding impedance muffler insert can be locally replaced by pulling out the chute from one end of the resistive muffler shell, so that the resistive muffler shell is convenient to disassemble, assemble and locally replace, the use and maintenance cost is reduced, and compared with the prior art, the resistive muffler shell is easier to popularize.
2. The utility model utilizes the composite noise elimination insert sheet formed by combining the ultra-microporous aluminum plate, the conventional perforated plate and the sound absorption cotton, wherein the conventional perforated plate is used as a facing hole plate, and the ultra-microporous aluminum plate has good low-frequency sound absorption coefficient and is used as a resistant sound absorption plate; and the characteristics of good sound absorption coefficient of each frequency multiplication of the middle and high frequencies of the glass wool can effectively eliminate the full-band noise in the noise.
Drawings
Fig. 1 is a front sectional view of a muffler for a dust collection fan which is convenient to disassemble.
Fig. 2 is a top view of a dust collection fan muffler convenient to disassemble.
Fig. 3 is a schematic structural view of the first impedance silencing insert in fig. 2 of a dust collection fan silencer which is convenient to disassemble.
1. A resistive sound damping shell; 101. a housing; 102. a first sound-absorbing cotton layer; 103. a conventional perforated plate; 2. a mounting plate; 3. a first impedance sound attenuation insert; 4. a second impedance sound attenuation insert; 5. a second sound-absorbing cotton layer; 6. the first impedance silencing insert piece is an inner cavity; 7. a first ultra-microporous aluminum perforated plate; 8. a third sound-absorbing cotton layer; 9. a second ultra microporous aluminum perforated plate; 10. the second impedance silencing insert piece is an inner cavity; 11. arc wind guiding strips; 12. a single-layer chute; 13. double-layer sliding groove.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-3, in an embodiment of the utility model, a dust collection fan muffler convenient to disassemble comprises a resistive muffler shell 1, a first resistive muffler insert 3 and a second resistive muffler insert 4, wherein three single-layer sliding grooves 12 are uniformly arranged on the inner top surface and the inner bottom surface of the resistive muffler shell 1 at equal intervals, the width of the single-layer sliding groove 12 positioned at the middle position is larger than that of the single-layer sliding grooves 12 positioned at the two sides, a double-layer sliding groove 13 is arranged in the middle of the resistive muffler shell 1, a first resistive muffler insert 3 and a second resistive muffler insert 4 are arranged between the double-layer sliding groove 13 and the single-layer sliding groove 12 correspondingly arranged, the two sides of the second resistive muffler insert 4 are provided with the first resistive muffler insert 3, a first resistive muffler insert inner cavity 6 is arranged in the middle position of the first resistive muffler insert 3, the first super-microporous aluminum perforated plate 7 is arranged at the two ends of the first resistive muffler insert inner cavity 6, a third sound-absorbing cotton layer 8 is arranged in the middle of the second resistive muffler insert 4, and a second super-microporous plate inner cavity 10 is arranged at the two ends of the third sound-absorbing cotton layer 8.
Arc wind-guiding strip 11 is all installed at the both ends of first impedance noise elimination inserted sheet 3 and the both ends of second impedance noise elimination inserted sheet 4, and arc wind-guiding strip 11 can reduce the windage, reaches energy-conserving purpose.
The thickness of the first impedance noise elimination insert sheet 3 is 100mm, and the thickness of the second impedance noise elimination insert sheet 4 is 200mm.
The thickness of the resistive muffler shell 1 is 100mm, the resistive muffler shell 1 comprises a shell 101, a first sound-absorbing cotton layer 102 and a conventional perforated plate 103, the conventional perforated plate 103 is arranged in the shell 101, and the first sound-absorbing cotton layer 102 is arranged between the shell 101 and the conventional perforated plate 103.
The case 101 is a galvanized steel sheet case, and the thickness of the case 101 is 2mm.
The first microporous aluminum perforated plate 7 had a porosity of 1% and the second microporous aluminum perforated plate 9 had a porosity of 2%.
The mounting plate 2 is installed at the both ends four corners position of resistive noise elimination shell 1, has seted up the mounting hole on the mounting plate 2, and the setting of mounting plate 2 can conveniently install this device on dust collecting fan's the passageway of airing exhaust.
Standard parts used in the utility model can be purchased from the market, special-shaped parts can be customized according to the description of the specification and the drawings, the specific connection modes of all parts adopt conventional means such as mature bolts, rivets and welding in the prior art, and the machinery, parts and equipment adopt the prior art, so that details are not described in detail, an ultra-microporous aluminum plate is Ma Da taught in the specification, an acoustic detection result of the ultra-microporous aluminum plate belongs to the prior art, and details described in the comparison document are omitted in detail in the specification.
The working principle of the utility model is as follows;
when the first impedance silencing insert 3 or the second impedance silencing insert 4 is damaged and needs to be replaced or maintained in the use process, a person firstly separates one end of the resistive silencing shell 1 from an exhaust pipeline of the dust collection fan, then the first impedance silencing insert 3 or the second impedance silencing insert 4 which needs to be replaced is extracted from a slideway formed by the single-layer chute 12 and the double-layer chute 13, and after maintenance or replacement is completed, the maintained or replaced first impedance silencing insert 3 or the replaced second impedance silencing insert 4 is inserted into the corresponding slideway and is completely pushed into the resistive silencing shell 1, so that the local disassembly and the assembly of the device are more convenient, the service life of the device is prolonged, the device has good silencing performance for a long time, the silencing principle of the device is the same as that of a comparison file, and detailed description is omitted.
Although the present utility model has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. The utility model provides a dust collection fan silencer of convenient dismantlement, includes resistive noise elimination shell (1), first impedance noise elimination inserted sheet (3) and second impedance noise elimination inserted sheet (4), its characterized in that: the noise elimination shell comprises a noise elimination shell body and is characterized in that three single-layer sliding grooves (12) are arranged on the inner top surface and the inner bottom surface of the noise elimination shell body at equal intervals, the single-layer sliding grooves (12) are arranged at middle positions, the width of each single-layer sliding groove (12) is larger than that of each single-layer sliding groove (12) on two sides, double-layer sliding grooves (13) are arranged in the middle of the noise elimination shell body (1), a first noise elimination insert sheet (3) and a second noise elimination insert sheet (4) are arranged between the double-layer sliding grooves (13) and the corresponding single-layer sliding grooves (12), first noise elimination insert sheet (3) are arranged on two sides of the second noise elimination insert sheet (4), a first noise elimination insert sheet (6) is arranged on the middle position in the first noise elimination insert sheet (3), a first noise elimination insert sheet inner cavity (6) is arranged at the middle of the first noise elimination insert sheet inner cavity (6), a first noise absorption perforated plate (7) is arranged on the middle of the first noise elimination insert sheet inner cavity (6), and a second noise absorption cotton layer (5) is arranged on the middle of the second noise elimination insert sheet inner cavity (3), and a second noise absorption cotton layer (10) is arranged on the middle of the second noise elimination insert sheet inner cavity (8).
2. The muffler for a dust collection fan convenient to detach according to claim 1, wherein: arc wind guide strips (11) are arranged at both ends of the first impedance silencing inserting sheet (3) and both ends of the second impedance silencing inserting sheet (4).
3. The muffler for a dust collection fan convenient to detach according to claim 1, wherein: the thickness of the first impedance noise elimination insert sheet (3) is 100mm, and the thickness of the second impedance noise elimination insert sheet (4) is 200mm.
4. The muffler for a dust collection fan convenient to detach according to claim 1, wherein: the thickness of resistive noise elimination shell (1) is 100mm, resistive noise elimination shell (1) is including casing (101), first sound cotton layer (102) and conventional perforated plate (103) inhale, be provided with conventional perforated plate (103) in casing (101), be provided with first sound cotton layer (102) inhale between casing (101) and conventional perforated plate (103).
5. The muffler for a dust collection fan convenient to detach according to claim 4, wherein: the shell (101) is a galvanized steel sheet shell, and the thickness of the shell (101) is 2mm.
6. The muffler for a dust collection fan convenient to detach according to claim 1, wherein: the perforation rate of the first ultra-microporous aluminum perforated plate (7) is 1%, and the perforation rate of the second ultra-microporous aluminum perforated plate (9) is 2%.
7. The muffler for a dust collection fan convenient to detach according to claim 1, wherein: mounting plates (2) are arranged at four corners of two ends of the resistive muffler shell (1), and mounting holes are formed in the mounting plates (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120813.3U CN219911291U (en) | 2022-11-23 | 2022-11-23 | Dust collection fan muffler convenient to detach |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202223120813.3U CN219911291U (en) | 2022-11-23 | 2022-11-23 | Dust collection fan muffler convenient to detach |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911291U true CN219911291U (en) | 2023-10-27 |
Family
ID=88438866
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202223120813.3U Active CN219911291U (en) | 2022-11-23 | 2022-11-23 | Dust collection fan muffler convenient to detach |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911291U (en) |
-
2022
- 2022-11-23 CN CN202223120813.3U patent/CN219911291U/en active Active
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant |