CN217080912U - Composite silencer for air inlet of air blower - Google Patents
Composite silencer for air inlet of air blower Download PDFInfo
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- CN217080912U CN217080912U CN202220563965.1U CN202220563965U CN217080912U CN 217080912 U CN217080912 U CN 217080912U CN 202220563965 U CN202220563965 U CN 202220563965U CN 217080912 U CN217080912 U CN 217080912U
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Abstract
The utility model discloses a compound silencer of air-blower air intake, including the silencer flange, the silencer inner tube, the silencer urceolus, the sound cotton is inhaled in the silencer inner tube, and the sound cotton is inhaled to the silencer urceolus, and the sound cotton is inhaled outward to the silencer inner tube, and the sound cotton is inhaled to silencer urceolus end plate, silencer inner tube micropore, silencer urceolus backup pad, silencer urceolus end plate, the silencer support, inlet channel A, inlet channel B, the flange bolt hole. The left end of the inner cylinder of the silencer is connected with a silencer flange, and the silencer flange is connected with an air inlet of the blower. The silencer outer cylinder is connected with the silencer support and fixed on the lower side of the silencer outer cylinder. The utility model discloses a noise eliminator utilizes its silencer urceolus end plate to inhale sound cotton, inner tube and inhale the sound cotton and fix on the inner tube outer wall inhale the sound cotton and fix on silencer urceolus inner wall inhale the cotton powerful sound effect of inhaling of sound and the micropore filtering synergism of inner tube, reach the purpose of compound noise elimination.
Description
Technical Field
The utility model belongs to the technical field of the environmental protection apparatus, a silencer is related to.
Background
In metallurgy, machine manufacturing, and chemical industry, various blowers are often used in each process of industrial production. The high-speed air friction of the fan blade can generate noise to different degrees, thereby causing pollution to the environment. It is a common practice to add a resistive muffler or a resistive composite muffler to the air inlet. However, these conventional mufflers often do not meet the national standard below 85 db on site.
SUMMERY OF THE UTILITY MODEL
In order to overcome the technical problem among the background art, the utility model provides a compound silencer of air-blower air intake inhales the sound cotton, the sound cotton is inhaled to the silencer inner tube and fixes inhaling the sound cotton on silencer inner tube outer wall and fix and inhale the sound cotton brute force on silencer urceolus inner wall and inhale the sound through its silencer urceolus end plate, with the micropore filtering synergism of inner tube, reachs the purpose of compound noise elimination, has solved the problem among the prior art.
The invention provides a composite silencer for an air inlet of a blower, which comprises a silencer flange, an inner silencer cylinder, an outer silencer cylinder, sound-absorbing cotton in the inner silencer cylinder, sound-absorbing cotton in the outer silencer cylinder, sound-absorbing cotton outside the inner silencer cylinder, sound-absorbing cotton on an end plate of the outer silencer cylinder, micropores of the inner silencer cylinder, a support plate of the outer silencer cylinder, an end plate of the outer silencer cylinder, a silencer support seat, an air inlet channel A, an air inlet channel B and a flange bolt hole.
The silencer inner cylinder is arranged in the silencer outer cylinder, the silencer inner cylinder and the silencer outer cylinder are in supporting connection through a silencer outer cylinder supporting plate, the tail end of the silencer inner cylinder is welded with the inner side of an end plate of the silencer outer cylinder, the silencer inner cylinder and the silencer outer cylinder are welded into a whole, and a plurality of silencer inner cylinder micropores are formed in the tail end of the silencer inner cylinder. The left end of the inner cylinder of the silencer is connected with a silencer flange, and the silencer flange is connected with an air inlet of the blower. The silencer outer cylinder is connected with the silencer support and fixed on the lower side of the silencer outer cylinder.
3 silencer urceolus backup pads are the central symmetry and are arranged at silencer urceolus left end, make the silencer inner tube when installing in the silencer urceolus, and the center axis coincides.
The inner sound-absorbing cotton of the inner cylinder of the silencer is fixedly arranged on the inner wall of the inner cylinder of the silencer, the outer sound-absorbing cotton of the inner cylinder of the silencer is fixedly arranged on the outer wall of the inner cylinder of the silencer, the sound-absorbing cotton of the outer cylinder of the silencer is arranged on the inner wall of the outer cylinder of the silencer, and the sound-absorbing cotton of the end plate of the outer cylinder of the silencer is arranged on the inner wall of the end plate of the outer cylinder of the silencer.
The silencer flange is provided with a flange bolt hole for connecting the silencer and the blower.
The channel of the inner cylinder of the silencer is an air inlet channel B, and the channel of the outer side of the inner cylinder of the silencer and the channel of the inner side of the outer cylinder of the silencer are air inlet channels A.
Has the advantages that:
the area of the sound-absorbing cotton on the end plate of the outer cylinder of the silencer is large, sound waves radiated from the air inlet of the blower are positively absorbed, and the noise generated by the blower can be absorbed to the maximum extent only by properly designing the quality and the thickness of the sound-absorbing cotton; the other part of the noise filtered by the micropores of the inner cylinder of the silencer enters the annular air inlet channel A after being attenuated, the annular air inlet channel A is surrounded by the sound-absorbing cotton on the outer cylinder of the silencer and the sound-absorbing cotton on the outer cylinder of the silencer, and when the sound waves pass through the narrow channel converted by reflection, the sound-absorbing cotton on the two sides of the channel A of the air inlet is also fully absorbed, so that the maximum noise reduction effect is achieved.
The silencer eliminates most sound waves in the inner cylinder of the silencer by utilizing the positive strong sound absorption effect of the sound absorption cotton on the end plate of the outer cylinder of the silencer, the filtering action of the micropores 8 of the inner cylinder and the synergistic action of the sound absorption cotton in the inner cylinder of the silencer. The rest sound waves are greatly attenuated after passing through the micropores of the inner cylinder of the silencer, and are absorbed by the sound-absorbing cotton fixed on the outer wall of the inner cylinder of the silencer and the sound-absorbing cotton fixed on the inner wall of the outer cylinder of the silencer after passing through the annular air inlet channel A, so that the noise reduction effect is extremely obvious. Simple structure, installation and maintenance are convenient.
Drawings
Fig. 1 is a front sectional view of the present invention;
fig. 2 is a sectional view a-a of fig. 1.
In the figure, 1-silencer flange, 2-silencer inner cylinder, 3-silencer outer cylinder, 4-silencer inner cylinder inner sound absorption cotton, 5-silencer outer cylinder sound absorption cotton, 6-silencer inner cylinder outer sound absorption cotton, 7-silencer outer cylinder end plate sound absorption cotton, 8-silencer inner cylinder micropore, 9-silencer outer cylinder support plate, 10-silencer outer cylinder end plate, 11-silencer support, 12-air inlet channel A, 13-air inlet channel B, 14-flange bolt hole.
DETAILED DESCRIPTION OF EMBODIMENT (S) OF INVENTION
In order to make the present invention more clearly understood, the structure and the connection relationship of the present invention are explained in detail through the present embodiment, so that the present invention is more clearly understood.
Example 1
As shown in fig. 1-2, a blower air inlet reflection silencer comprises a silencer flange 1, a silencer inner cylinder 2, a silencer outer cylinder 3, sound-absorbing cotton 4 in the silencer inner cylinder, sound-absorbing cotton 5 on the silencer outer cylinder, sound-absorbing cotton 6 outside the silencer inner cylinder, sound-absorbing cotton 7 on an end plate of the silencer outer cylinder, micropores 8 in the silencer inner cylinder, a silencer outer cylinder support plate 9, a silencer outer cylinder end plate 10, a silencer support 11, an air inlet channel a12, an air inlet channel B13 and a flange bolt hole 14.
The left end of the silencer inner cylinder 2 is connected with a silencer flange 1, and the silencer flange 1 is connected with an air inlet of the blower. The muffler outer cylinder 3 is connected to the muffler support 11 and fixed to the lower side of the muffler outer cylinder 3. The silencer inner cylinder 2 is arranged in the silencer outer cylinder 3, and the silencer inner cylinder 2 is connected with the silencer outer cylinder 3 in a supporting mode through a silencer outer cylinder supporting plate 9.
The inner sound-absorbing cotton 4 of the inner cylinder of the silencer is fixedly arranged on the inner wall of the inner cylinder 2 of the silencer, the outer sound-absorbing cotton 6 of the inner cylinder of the silencer is fixedly arranged on the outer wall of the inner cylinder 2 of the silencer, the sound-absorbing cotton 5 of the outer cylinder of the silencer is arranged on the inner wall of the outer cylinder 3 of the silencer, and the sound-absorbing cotton 7 of the end plate of the outer cylinder of the silencer is arranged on the inner wall of the end plate 10 of the outer cylinder of the silencer.
The muffler flange has flange bolt holes 14 for connection between the muffler and the blower.
The channel of the inner cylinder of the silencer is an air inlet channel B13, and the channel between the outer side of the inner cylinder of the silencer and the inner side of the outer cylinder of the silencer is an air inlet channel A12.
Example 2
As shown in fig. 1-2, a blower air inlet reflection silencer comprises a silencer flange 1, a silencer inner cylinder 2, a silencer outer cylinder 3, sound-absorbing cotton 4 in the silencer inner cylinder, sound-absorbing cotton 5 on the silencer outer cylinder, sound-absorbing cotton 6 outside the silencer inner cylinder, sound-absorbing cotton 7 on an end plate of the silencer outer cylinder, micropores 8 in the silencer inner cylinder, a silencer outer cylinder support plate 9, a silencer outer cylinder end plate 10, a silencer support 11, an air inlet channel a12, an air inlet channel B13 and a flange bolt hole 14.
The silencer inner cylinder 2 is arranged in the silencer outer cylinder 3, the silencer inner cylinder 2 and the silencer outer cylinder 3 are in supporting connection through a silencer outer cylinder supporting plate 9, the tail end of the silencer inner cylinder 2 is in welded connection with the inner side of a silencer outer cylinder end plate 10, and a plurality of silencer inner cylinder micropores 8 are formed in the tail end of the silencer inner cylinder 2. The left end of the silencer inner cylinder 2 is connected with a silencer flange 1, and the silencer flange 1 is connected with an air inlet of the blower. The muffler outer cylinder 3 is connected to the muffler support 11 and fixed to the lower side of the muffler outer cylinder 3.
The inner sound-absorbing cotton 4 of the inner cylinder of the silencer is fixedly arranged on the inner wall of the inner cylinder 2 of the silencer, the outer sound-absorbing cotton 6 of the inner cylinder of the silencer is fixedly arranged on the outer wall of the inner cylinder 2 of the silencer, the sound-absorbing cotton 5 of the outer cylinder of the silencer is arranged on the inner wall of the outer cylinder 3 of the silencer, and the sound-absorbing cotton 7 of the end plate of the outer cylinder of the silencer is arranged on the inner wall of the end plate 10 of the outer cylinder of the silencer.
3 support plates 9 of the silencer outer cylinder are arranged at the left end of the silencer outer cylinder 2 in a centrosymmetric mode, so that the central axes of the silencer inner cylinder 2 are overlapped when the silencer outer cylinder 3 is installed.
The muffler flange 1 has flange bolt holes 14 for connection between the muffler and the blower.
The channel of the inner cylinder of the silencer is an air inlet channel B13, and the channel between the outer side of the inner cylinder 2 of the silencer and the inner side of the outer cylinder 3 of the silencer is an air inlet channel A12.
Example 3
As shown in fig. 1-2, the blower air inlet reflection silencer comprises a silencer flange 1, a silencer inner cylinder 2, a silencer outer cylinder 3, sound-absorbing cotton 4 in the silencer inner cylinder, sound-absorbing cotton 5 in the silencer outer cylinder, sound-absorbing cotton 6 outside the silencer inner cylinder, sound-absorbing cotton 7 on an end plate of the silencer outer cylinder, micropores 8 in the silencer inner cylinder, a supporting plate 9 of the silencer outer cylinder, an end plate 10 of the silencer outer cylinder, a silencer support 11, an air inlet channel a12, an air inlet channel B13 and a flange bolt hole 14.
The silencer inner cylinder 2 is arranged in the silencer outer cylinder 3, the silencer inner cylinder 2 and the silencer outer cylinder 3 are in supporting connection through a silencer outer cylinder supporting plate 9, the tail end of the silencer inner cylinder 2 is in welded connection with the inner side of a silencer outer cylinder end plate 10, and a plurality of silencer inner cylinder micropores are formed in the tail end of the silencer inner cylinder. The left end of the silencer inner cylinder 2 is connected with a silencer flange 1, and the silencer flange 1 is connected with an air inlet of the blower. The muffler outer cylinder 3 is connected to the muffler support 11 and fixed to the lower side of the muffler outer cylinder 3.
The inner sound-absorbing cotton 4 of the inner cylinder of the silencer is fixedly arranged on the inner wall of the inner cylinder 2 of the silencer, the outer sound-absorbing cotton 6 of the inner cylinder of the silencer is fixedly arranged on the outer wall of the inner cylinder 2 of the silencer, the sound-absorbing cotton 5 of the outer cylinder of the silencer is arranged on the inner wall of the outer cylinder 3 of the silencer, and the sound-absorbing cotton 7 of the end plate of the outer cylinder of the silencer is arranged on the inner wall of the end plate 10 of the outer cylinder of the silencer.
3 support plates 9 of the silencer outer cylinder are arranged at the left end of the silencer outer cylinder 2 in a centrosymmetric mode, so that the central axes of the silencer inner cylinder 2 are overlapped when the silencer outer cylinder 3 is installed.
The muffler flange 1 has flange bolt holes 14 for connection between the muffler and the blower.
The channel of the inner cylinder of the silencer is an air inlet channel B13, and the channel between the outer side of the inner cylinder 2 of the silencer and the inner side of the outer cylinder 3 of the silencer is an air inlet channel A12.
The silencer inner cylinder micropores 8 are uniformly arranged at the tail end of the silencer inner cylinder 2, and at the position with the silencer inner cylinder micropores 8, the silencer inner cylinder inner sound-absorbing cotton 4 and the silencer inner cylinder outer sound-absorbing cotton 6 are not arranged.
The utility model discloses the working process:
when the blower works, air enters the silencer from an air inlet channel A12 enclosed between the silencer inner cylinder 2 and the silencer outer cylinder 3, then enters an air inlet channel B13 from the silencer inner cylinder micropores 8, and enters the inlet of the blower. The noise generated by the blade is radiated from the inlet of the blower and enters the air inlet channel B13, a part of sound wave is absorbed by the sound absorption cotton 4 in the inner cylinder of the silencer fixed on the inner cylinder 2 of the silencer, a majority of noise is absorbed by the sound absorption cotton 7 on the end plate of the outer cylinder of the silencer, the other part of sound wave is eliminated due to the filtering action of the micropores 8 of the inner cylinder of the silencer, the rest of sound wave enters the air inlet channel A12 between the sound absorption cotton and the outer cylinder 3 from the micropores 8 of the inner cylinder of the silencer and is absorbed by the sound absorption cotton 6 outside the inner cylinder of the silencer fixed on the outer wall of the inner cylinder and the sound absorption cotton 5 on the inner wall of the outer cylinder 3 of the silencer, and the rest of sound wave is radiated into the air.
Finally, the present invention is not limited to the above structure, and all the structural improvements of the present invention are within the scope of the present invention.
Claims (5)
1. A composite silencer for an air inlet of an air blower comprises a silencer flange, a silencer inner cylinder, a silencer outer cylinder, sound absorption cotton in the silencer inner cylinder, sound absorption cotton in the silencer outer cylinder, sound absorption cotton outside the silencer inner cylinder, sound absorption cotton on an end plate of the silencer outer cylinder, micropores of the silencer inner cylinder, a silencer outer cylinder support plate, an end plate of the silencer outer cylinder and a silencer support, wherein the left end of the silencer inner cylinder is connected with the silencer flange, the silencer flange is connected with the air inlet of the air blower, the silencer outer cylinder is connected with the silencer support and fixed at the lower side of the silencer outer cylinder, the composite silencer is characterized in that the silencer inner cylinder is arranged in the silencer outer cylinder, the silencer inner cylinder is connected with the silencer outer cylinder through the silencer outer cylinder support plate in a supporting manner, the sound absorption cotton in the silencer inner cylinder is fixedly arranged on the inner cylinder inner wall, the sound absorption cotton outside the silencer inner cylinder is fixedly arranged on the outer wall of the silencer inner cylinder, the silencer outer cylinder is installed on the inner wall of the silencer outer cylinder and absorbs sound cotton, the silencer outer cylinder end plate is installed on the inner wall of the silencer outer cylinder end plate and absorbs sound cotton, the tail end of the silencer inner cylinder and the inner side of the silencer outer cylinder end plate are welded to enable the silencer inner cylinder and the silencer outer cylinder to be welded integrally, and the tail end of the silencer inner cylinder is provided with silencer inner cylinder micropores.
2. The composite muffler for an air inlet of a blower as set forth in claim 1, wherein 3 support plates of the outer cylinder of the muffler are arranged in a centrosymmetric manner at the left end of the outer cylinder of the muffler such that the central axes thereof coincide when the inner cylinder of the muffler is mounted in the outer cylinder of the muffler.
3. The composite muffler for the air inlet of a blower according to claim 1 or 2, wherein the muffler flange has flange bolt holes for connection between the muffler and the blower.
4. The composite muffler for the air inlet of the blower as claimed in claim 1 or 2, wherein the passage of the inner cylinder of the muffler is an air inlet passage B, and the passages of the outer side of the inner cylinder of the muffler and the inner side of the outer cylinder of the muffler are air inlet passages a.
5. The composite muffler for the air intake of a blower as set forth in claim 1 or above, wherein the inner cylinder of the muffler has the pores uniformly arranged at the end thereof, and there are no sound-absorbing cotton in the inner cylinder of the muffler and no sound-absorbing cotton outside the inner cylinder of the muffler at the positions having the pores.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220563965.1U CN217080912U (en) | 2022-03-15 | 2022-03-15 | Composite silencer for air inlet of air blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220563965.1U CN217080912U (en) | 2022-03-15 | 2022-03-15 | Composite silencer for air inlet of air blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217080912U true CN217080912U (en) | 2022-07-29 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220563965.1U Active CN217080912U (en) | 2022-03-15 | 2022-03-15 | Composite silencer for air inlet of air blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217080912U (en) |
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2022
- 2022-03-15 CN CN202220563965.1U patent/CN217080912U/en active Active
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