CN220749429U - Noise reduction equipment for warm ventilation pipe - Google Patents
Noise reduction equipment for warm ventilation pipe Download PDFInfo
- Publication number
- CN220749429U CN220749429U CN202322337687.5U CN202322337687U CN220749429U CN 220749429 U CN220749429 U CN 220749429U CN 202322337687 U CN202322337687 U CN 202322337687U CN 220749429 U CN220749429 U CN 220749429U
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- sound
- cover
- absorbing
- arc
- noise
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- 238000009423 ventilation Methods 0.000 title claims abstract description 20
- 229920000742 Cotton Polymers 0.000 claims abstract description 18
- 238000013016 damping Methods 0.000 claims abstract 3
- 238000010521 absorption reaction Methods 0.000 claims description 10
- 238000009413 insulation Methods 0.000 claims description 10
- 230000030279 gene silencing Effects 0.000 claims description 9
- 230000000694 effects Effects 0.000 abstract description 10
- 238000010438 heat treatment Methods 0.000 description 2
- 239000011358 absorbing material Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000001743 silencing effect Effects 0.000 description 1
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Landscapes
- Exhaust Silencers (AREA)
- Duct Arrangements (AREA)
Abstract
The utility model discloses noise reduction equipment for a warm ventilation pipe, and relates to the technical field of warm ventilation equipment. The sound-proof air duct comprises a sound-proof cover and a sound-absorbing cover, wherein the sound-proof cover is sleeved outside the sound-absorbing cover, the sound-absorbing cover is sleeved outside a sound-damping cotton sleeve, and the sound-damping cotton sleeve is sleeved outside an air duct body; a plurality of sound wave reflecting plates which are uniformly distributed along the circumference are arranged on the inner wall of the sound-proof cover; the middle part of the sound absorbing cover is provided with an arc-shaped channel, a plurality of inner round holes uniformly distributed along the circumference are formed in an arc-shaped plate on the inner side of the arc-shaped channel, and a plurality of outer round holes uniformly distributed along the circumference are formed in an arc-shaped plate on the outer side of the arc-shaped channel. According to the utility model, by arranging the sound-proof cover, the sound-absorbing cover and the sound-deadening cotton sleeve, the noise-reduction effect is greatly improved by the triple measures, and by arranging the arc-shaped channel, the inner round hole, the outer round hole and the sound wave reflecting plate, the sound-absorbing effect of the sound-absorbing cover is better due to the porous labyrinth structure, and the problems that the noise-reduction measures of the traditional air pipe noise-reduction equipment are single and the effect is not ideal are solved.
Description
Technical Field
The utility model belongs to the technical field of heating ventilation equipment, and particularly relates to noise reduction equipment for a heating ventilation pipe.
Background
With the progress of modern society and the improvement of living standard of people, the problem of noise pollution is increasingly prominent, and the daily life of people is seriously affected. Along with the wide application of noise control technology, noise from air inlets and outlets of a central air conditioner and a fresh air system becomes one of main noise sources in indoor environments, and the noise is high, so that rest of residents is seriously affected.
The existing warm ventilation pipe noise is mostly too concentrated in flowing air flow, the concentrated flowing air flow impacts the warm ventilation pipe and generates friction vibration with the warm ventilation pipe, noise is caused, the existing warm ventilation pipe lacks effective silencing measures, the noise in the warm ventilation pipe cannot be relieved, the use is affected, even if a silencing box is installed on the existing warm ventilation pipe and silencing cotton is wrapped on the existing warm ventilation pipe, but only small noise can be coped, the large noise silencing effect is still not ideal, and therefore an improved technology is urgently needed on the market to solve the problems.
Disclosure of Invention
The utility model aims to provide noise reduction equipment for a warm ventilation pipe, which is characterized in that a sound-proof cover, a sound-absorbing cover and a sound-absorbing cotton sleeve are arranged, triple measures are mutually matched to greatly improve the noise reduction effect, and an arc-shaped channel, an inner round hole, an outer round hole and a sound wave reflecting plate are arranged, so that the sound absorption effect of the sound-absorbing cover is better due to a porous labyrinth structure, and the problems that the noise reduction measures of the traditional air pipe noise reduction equipment are single and the effect is not ideal are solved.
In order to solve the technical problems, the utility model is realized by the following technical scheme:
the utility model relates to noise reduction equipment for a warm ventilation pipe, which comprises a sound insulation cover and a sound absorption cover, wherein the sound insulation cover is sleeved outside the sound absorption cover, the sound absorption cover is sleeved outside a sound attenuation cotton sleeve, and the sound attenuation cotton sleeve is sleeved outside an air pipe body.
A plurality of sound wave reflecting plates which are uniformly distributed along the circumference are arranged on the inner wall of the sound-proof cover; the middle part of the sound absorbing cover is provided with an arc-shaped channel, a plurality of inner round holes uniformly distributed along the circumference are formed in an arc-shaped plate on the inner side of the arc-shaped channel, and a plurality of outer round holes uniformly distributed along the circumference are formed in an arc-shaped plate on the outer side of the arc-shaped channel.
Further, the inner round holes and the outer round holes are distributed in a staggered mode and are communicated with the arc-shaped channel.
Further, the sound-absorbing cover consists of two sound-absorbing half cover bodies which are fixedly spliced; the end part of the sound-absorbing half cover body is provided with a second support plate, and a second mounting hole for a fastener to pass through is formed in the second support plate; the two sound-absorbing half covers are locked by the fastener. The sound absorbing cover is made of common sound absorbing materials and is formed by splicing two half cover bodies, so that the sound absorbing cover is convenient to install and detach.
Further, the silencing cotton sleeve is pressed on the air pipe body by the two sound-absorbing half cover bodies.
Further, the sound-proof cover consists of two sound-proof half cover bodies which are fixedly spliced; the end part of the sound insulation half cover body is provided with a first support plate, and a first mounting hole for a fastener to pass through is formed in the first support plate; the two sound-insulating half cover bodies are locked by a fastener; and the inner side surface of the sound insulation half cover body is also fixed with an inner supporting plate, and the inner supporting plate is abutted with the outer surface of the sound absorption cover. The sound-proof cover is made of common sound-proof materials and is formed by splicing two half cover bodies, so that the sound-proof cover is convenient to install and detach.
Further, the sound-proof cover is arranged in a regular decagon shape in cross section, and the sound wave reflecting plates are arranged in ten shapes and are uniformly arranged on ten inner side surfaces respectively; the sound absorbing cover is circular in cross-sectional shape.
The utility model has the following beneficial effects:
1. according to the utility model, through the arrangement of the sound-proof cover, the sound-absorbing cover and the sound-absorbing cotton sleeve, noise emitted by the air pipe body is consumed and counteracted by the sound-absorbing cotton sleeve, preliminary noise reduction is realized, the noise is further reduced through the labyrinth porous structure of the sound-absorbing cover, finally, the noise emitted by the air pipe body is not heard by external people due to the mutual cooperation of the sound-proof cover and the sound-absorbing cover, the noise reduction effect is good, and the sound-proof cover and the sound-absorbing cover are formed by splicing two half cover bodies, so that the sound-absorbing cover is convenient to mount and dismount.
2. According to the utility model, the arc-shaped channel, the inner round holes, the outer round holes and the sound wave reflecting plate are arranged, so that the sound absorption effect of the sound absorbing cover is better, noise enters the arc-shaped channel through the plurality of inner round holes and then exits from the plurality of outer round holes, after the noise enters the porous labyrinth structure, sound energy rubs with meridians in the small holes to convert sound energy into heat energy to be consumed, noise reduction is realized, meanwhile, the sound exiting from the outer round holes is reflected to the sound absorbing cover again through the sound wave reflecting plate, noise reduction is carried out through the porous labyrinth structure repeatedly, and the noise energy of the air pipe body can be thoroughly consumed.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed for the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present utility model, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a perspective view of an overall structure;
FIG. 2 is a front cross-sectional view of the overall structure;
FIG. 3 is a schematic view of a sound absorbing cover;
fig. 4 is a schematic view of a sound-proof housing.
In the drawings, the list of components represented by the various numbers is as follows:
1. a soundproof cover; 2. a sound absorbing cover; 3. a sound-deadening cotton sleeve; 4. an air duct body; 11. a sound-insulating half cover body; 12. a first support plate; 13. a first mounting hole; 14. an inner support plate; 15. an acoustic wave reflecting plate; 21. a sound-absorbing half cover body; 22. a second support plate; 23. a second mounting hole; 24. an arcuate channel; 25. an inner circular hole; 26. and an outer round hole.
Detailed Description
The technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model.
Referring to fig. 1 to 2, the present utility model is a noise reduction device for a warm ventilation pipe, which comprises a sound-proof cover 1 and a sound-absorbing cover 2, wherein the sound-proof cover 1 is sleeved outside the sound-absorbing cover 2, the sound-absorbing cover 2 is sleeved outside a sound-reducing cotton sleeve 3, and the sound-reducing cotton sleeve 3 is sleeved outside an air pipe body 4.
Wherein as shown in fig. 3, the section shape of the sound-absorbing cover 2 is set to be circular, and the sound-absorbing cover 2 is composed of two sound-absorbing half cover bodies 21 which are fixedly spliced; the end part of the sound-absorbing half cover body 21 is provided with a second support plate 22, and the second support plate 22 is provided with a second mounting hole 23 for a fastener to pass through; the two sound-absorbing half cover bodies 21 are locked by fasteners; the silencing cotton sleeve 3 is pressed on the air pipe body 4 by the two sound-absorbing half cover bodies 21; the middle part of the sound absorbing cover 2 is provided with an arc-shaped channel 24, a plurality of inner circular holes 25 which are uniformly distributed along the circumference are formed in an arc-shaped plate on the inner side of the arc-shaped channel 24, a plurality of outer circular holes 26 which are uniformly distributed along the circumference are formed in an arc-shaped plate on the outer side of the arc-shaped channel 24, and the inner circular holes 25 and the outer circular holes 26 are distributed in a staggered manner and are communicated with the arc-shaped channel 24.
The arrangement of the arc-shaped channel 24, the inner circular holes 25 and the outer circular holes 26 ensures that the sound absorption effect of the sound absorption cover 2 is better, noise enters the arc-shaped channel 24 through the plurality of inner circular holes 25 and then exits from the plurality of outer circular holes 26, after entering the porous labyrinth structure, sound energy rubs with channels and collaterals in the small holes to convert sound energy into heat energy to be consumed, and noise reduction is realized; by arranging the sound wave reflecting plate 15, sound coming out of the outer circular hole 26 is reflected to the sound absorbing cover 2 again through the sound wave reflecting plate 15, and noise energy of the air pipe body 4 can be completely consumed by repeatedly silencing through the porous labyrinth structure.
As shown in fig. 4, the sound-proof cover 1 is composed of two sound-proof half cover bodies 11 which are fixedly spliced; the end part of the sound insulation half cover body 11 is provided with a first support plate 12, and the first support plate 12 is provided with a first mounting hole 13 for a fastener to pass through; the two sound insulation half cover bodies 11 are locked by fasteners; an inner supporting plate 14 is also fixed on the inner side surface of the sound insulation half cover body 11, and the inner supporting plate 14 is abutted with the outer surface of the sound absorption cover 2; the sound-proof housing 1 is provided with a plurality of sound wave reflecting plates 15 uniformly distributed along the circumference on the inner wall, the cross-sectional shape of the sound-proof housing 1 is set to be regular decagon, the sound wave reflecting plates 15 are provided with ten, and are uniformly arranged on ten inner side surfaces respectively.
The operation of this embodiment is as follows:
noise emitted by the air pipe body 4 is consumed and counteracts the transmission of sound through the silencing cotton sleeve 3, so that preliminary noise reduction is realized;
the noise is further reduced through the labyrinth porous structure of the sound absorbing cover 2, and meanwhile, the sound absorbing cover 2 is matched with the sound wave reflecting plate 15 of the sound insulating cover 1, so that the sound reciprocating sound absorbing cover 2 consumes noise energy;
finally, the sound-proof cover 1 is used for blocking, and the triple measures are matched with each other so that the noise emitted by the air pipe body 4 can not be heard by the outside crowd, and the noise reduction effect is greatly improved.
The foregoing is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, and any modification, equivalent replacement, and improvement of some of the technical features described in the foregoing embodiments are all within the scope of the present utility model.
Claims (6)
1. Noise reduction equipment for warm ventilation pipe, including sound-proof housing (1) and sound-absorbing housing (2), its characterized in that:
the sound-proof cover (1) is sleeved outside the sound-absorbing cover (2), the sound-absorbing cover (2) is sleeved outside the silencing cotton sleeve (3), and the silencing cotton sleeve (3) is sleeved outside the air pipe body (4);
a plurality of sound wave reflecting plates (15) which are uniformly distributed along the circumference are arranged on the inner wall of the sound-proof housing (1);
the middle part of sound absorbing cover (2) is provided with arc passageway (24), be provided with a plurality of interior round holes (25) along circumference evenly distributed on the inboard arc of arc passageway (24), be provided with a plurality of outer round holes (26) along circumference evenly distributed on the arc of arc passageway (24) outside.
2. A noise reduction device for a warm air duct according to claim 1, characterized in that the inner circular holes (25) and the outer circular holes (26) are staggered and are in communication with the curved passage (24).
3. A noise reduction device for a warm ventilation duct according to claim 1, characterized in that the sound-absorbing cover (2) consists of two fixed spliced sound-absorbing half-covers (21);
the end part of the sound-absorbing half cover body (21) is provided with a second support plate (22), and a second mounting hole (23) for a fastener to pass through is formed in the second support plate (22);
the two sound-absorbing half cover bodies (21) are locked by fasteners.
4. A noise reducing device for a warm air duct according to claim 3, characterized in that the noise damping cotton sleeve (3) is pressed against the air duct body (4) by two sound-absorbing half-shells (21).
5. A noise reduction device for a warm ventilation pipe according to claim 1, characterized in that the sound-insulating cover (1) consists of two fixed spliced sound-insulating half-covers (11);
the end part of the sound insulation half cover body (11) is provided with a first support plate (12), and a first mounting hole (13) for a fastener to pass through is formed in the first support plate (12);
the two sound insulation half cover bodies (11) are locked by fasteners;
and an inner supporting plate (14) is also fixed on the inner side surface of the sound insulation half cover body (11), and the inner supporting plate (14) is abutted with the outer surface of the sound absorption cover (2).
6. A noise reduction device for a warm ventilation pipe according to claim 1, characterized in that the sound-proof housing (1) is provided in a regular decagon in cross-sectional shape, and the sound-wave reflecting plates (15) are provided in ten, uniformly on ten inner sides, respectively;
the sound absorbing cover (2) is provided with a circular cross section.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337687.5U CN220749429U (en) | 2023-08-30 | 2023-08-30 | Noise reduction equipment for warm ventilation pipe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322337687.5U CN220749429U (en) | 2023-08-30 | 2023-08-30 | Noise reduction equipment for warm ventilation pipe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220749429U true CN220749429U (en) | 2024-04-09 |
Family
ID=90559279
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322337687.5U Active CN220749429U (en) | 2023-08-30 | 2023-08-30 | Noise reduction equipment for warm ventilation pipe |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220749429U (en) |
-
2023
- 2023-08-30 CN CN202322337687.5U patent/CN220749429U/en active Active
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