CN212484933U - Rectangular array type silencer - Google Patents
Rectangular array type silencer Download PDFInfo
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- CN212484933U CN212484933U CN202022158451.1U CN202022158451U CN212484933U CN 212484933 U CN212484933 U CN 212484933U CN 202022158451 U CN202022158451 U CN 202022158451U CN 212484933 U CN212484933 U CN 212484933U
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Abstract
The utility model provides a rectangle array silencer, the silencer includes the casing of main part noise elimination unit and rectangle, main part noise elimination unit is located in the casing, and with casing fixed connection, main part noise elimination unit includes a plurality of sub-noise elimination units, a plurality of sub-noise elimination units are in the array is arranged in the casing, among a plurality of sub-noise elimination units, adjacent sub-noise elimination unit fixed connection. The rectangular array type silencer increases the area of a silencing channel and improves the silencing effect; the fixing mode between main part noise elimination unit and the casing, between the sub-noise elimination unit is more nimble, reliable, and this silencer is compared noise elimination unit transportation, field installation, later maintenance, dismantlement with current silencer and is more convenient.
Description
Technical Field
The utility model relates to a glass fiber technical field, in particular to rectangle array silencer.
Background
The axial-flow fan is widely applied to subway tunnel sections, station exhaust heat removal and main ventilation of coal mine ground; the axial-flow type ventilator has the characteristics of high wind speed, large wind volume and high full pressure of the fan, but simultaneously, the motor rotation noise and the airflow noise cause great harm to the safety of the surrounding environment in the running process of the fan, and in order to meet the noise control requirements and standards of the fan on the inside and outside of the installation and use environment, a corresponding silencer is generally required to be additionally arranged for noise elimination treatment, or the axial-flow type ventilator is arranged in a civil air duct, or is directly connected with fan equipment to reduce the intermediate frequency and low frequency noise emitted when the fan runs.
At present, a silencer of a fan mainly comprises a structural sheet type silencer and an array type silencer.
The two mufflers have basically the same structural principle, and generally adopt a shell with an external metal double layer (an outer layer is welded by a steel plate and a flange, an inner layer is welded by a steel perforated plate and a flange, and double muffling cotton is filled between the inner layer and the outer layer), and a built-in corresponding muffling unit with the same interval and the same sheet thickness (the outer layer adopts a metal perforated plate and the inner layer adopts a frame structure to fill multiple layers of muffling cotton).
In the two mufflers, the number of the perforations in the metal perforated plate is small, so that the muffling effect is poor; the sound-deadening cotton in the sound-deadening unit is unreasonable in arrangement, so that the sound-deadening effect is poor; the fixing mode among the silencing units is complex, so that the circulation of gas is influenced, and the silencing effect is further influenced; in addition, the volume of the silencing unit is large, so that the silencer is large in volume and difficult to disassemble, maintain and replace at the later stage.
Based on this, the prior art is certainly subject to improvement.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the technical problem that need solve is that current silencer noise elimination effect is poor, the dismouting is more difficult.
In order to solve the above problem, the utility model provides a rectangle array silencer, the technical scheme of its adoption as follows:
the silencer comprises a main body silencing unit and a rectangular shell, wherein the main body silencing unit is positioned in the shell and fixedly connected with the shell, the main body silencing unit comprises a plurality of sub silencing units, the sub silencing units are arranged in the shell in an array mode, and adjacent sub silencing units in the sub silencing units are fixedly connected;
the shell comprises an inner plate, an outer plate and fixing flanges, wherein the inner plate comprises first silencing holes, the inner plate is enclosed to form an inner shell, the outer plate is enclosed to form an outer shell, a first silencing structure is arranged between the inner shell and the outer shell, the inner shell, the outer shell and the first silencing structure form a first cylindrical structure, and the fixing flanges are located at two ends of the first cylindrical structure and fixedly connected with the first cylindrical structure to form the shell;
the sub-silencing unit comprises a silencing inner shell, a silencing outer shell and a second silencing structure positioned between the silencing inner shell and the silencing outer shell, the silencing inner shell and the silencing outer shell are both provided with second silencing holes, the silencing inner shell is structured into a cylindrical shell, the second silencing structure comprises a plurality of silencing layers, and the silencing layers are sequentially arranged from the silencing inner shell to the silencing outer shell;
the silencer comprises a fixed buckle and a connecting piece, the shell is fixedly connected with the main body silencing unit through the fixed buckle and the connecting piece, and the adjacent sub silencing units are fixedly connected with the connecting piece through the fixed buckle.
Optionally, the second sound-damping structure includes three sound-damping layers, where the sound-damping layer located in the middle layer includes sound-damping cotton with a first volume weight, the sound-damping layer located in the outer layer includes sound-damping cotton with a second volume weight, and the first volume weight is smaller than the second volume weight.
Optionally, the sub-silencing unit further comprises a silencing plug structure, the silencing inner shell, the silencing outer shell and the second silencing structure form a main silencing part of the sub-silencing unit, the main silencing part is of a second cylindrical structure, and the silencing plug structure is located at two ends of the second cylindrical structure and used for plugging two ends of the second cylindrical structure.
Optionally, the silencing plug structure is fixedly connected with the second cylindrical structure.
Optionally, the sub sound attenuation unit further comprises a plurality of support skeletons, and the plurality of support skeletons are located on the inner side of the sound attenuation shell.
Optionally, the plurality of supporting frameworks are uniformly distributed along the axial direction of the sub-silencing unit.
Optionally, the first sound attenuating structure comprises sound attenuating cotton.
Optionally, the first muffling aperture comprises a circular aperture; and/or the presence of a gas in the gas,
the second muffling aperture comprises a circular aperture.
Optionally, each of the connectors is provided with two fixing buckles, which are a first fixing buckle and a second fixing buckle, the first fixing buckle is fixedly connected with the housing, the second fixing buckle is connected with the main body noise elimination unit, and two ends of each of the connectors are fixedly connected with the first fixing buckle and the second fixing buckle respectively.
Optionally, each of the connectors is provided with two fixing buckles, which are a first fixing buckle and a second fixing buckle, respectively, the first fixing buckle is fixedly connected with one of the adjacent sub-noise elimination units, the second fixing buckle is fixedly connected with the other of the adjacent sub-noise elimination units, and two ends of the connector are fixedly connected with the first fixing buckle and the second fixing buckle, respectively.
The utility model has the advantages that:
compared with the shell of the traditional array type silencer, the shell of the rectangular array type silencer is additionally provided with a first silencing structure and an inner plate provided with a first silencing hole, so that the silencing effect is improved;
compared with the traditional array type silencer, the sub-silencing units are additionally provided with the silencing inner shell provided with the second silencing holes, so that an inner circular honeycomb silencing channel is formed, wind current can be more stable, the area of the silencing channel can be increased, and the silencing effect is improved;
the second silencing structure in the sub-silencing unit is of a multilayer structure, so that the silencing effect is better;
in this silencer, the fixed mode between main part noise elimination unit and the casing, between the sub-noise elimination unit is more nimble, reliable, and this silencer is compared noise elimination unit transportation, field installation, later maintenance, dismantlement with current silencer more convenient.
Drawings
Fig. 1 is a schematic structural diagram of a muffler according to an embodiment of the present invention;
FIG. 2 is a partial schematic view of the location A of FIG. 1;
fig. 3 is another schematic structural diagram of a muffler according to an embodiment of the present invention;
FIG. 4 is a partial schematic view of the location B in FIG. 3;
fig. 5 is another schematic structural diagram of a muffler according to an embodiment of the present invention;
fig. 6 is a schematic structural view of a sub-muffler unit according to an embodiment of the present invention;
fig. 7 is a cross-sectional view of a sub muffler unit according to an embodiment of the present invention;
fig. 8 is a side view of a sub muffler unit according to an embodiment of the present invention;
fig. 9 is a schematic view illustrating a connection between a connecting member and a fixing buckle of a muffler according to an embodiment of the present invention.
Detailed Description
The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples.
The utility model provides a rectangle array silencer, it is shown with reference to fig. 1-9, the silencer includes main part noise elimination unit 2 and the casing 1 of rectangle, main part noise elimination unit 2 is located in the casing 1, and with 1 fixed connection of casing, main part noise elimination unit 2 includes a plurality of sub-noise elimination unit 21, a plurality of sub-noise elimination unit 21 are in array arrangement in the casing 1, in a plurality of sub-noise elimination unit 21, adjacent sub-noise elimination unit 21 fixed connection. In this silencer, a plurality of sub-noise elimination units 21 fixed connection form main part noise elimination unit 2, then with main part noise elimination unit 2 and 1 fixed connection of casing for noise elimination unit modularization, more portable later maintenance, dismouting, change etc..
Referring to fig. 1 to 5, the housing 1 includes an inner plate including a first muffling hole (not shown), for example, a circular hole, an outer plate surrounding an inner shell 11, and an attachment flange 14 surrounding an outer shell 12, and a first muffling structure 13 disposed between the inner shell 11 and the outer shell 12, the first muffling structure 13 including muffling cotton, for example. The inner shell 11, the outer shell 12 and the first sound attenuation structure 13 form a first cylindrical structure, and the fixing flanges 14 are located at two ends of the first cylindrical structure and fixedly connected with the first cylindrical structure to form the shell 1. An inner shell 11 provided with a first silencing hole is additionally arranged in the shell 1, and a first silencing structure 13 (such as silencing cotton) is arranged between the inner shell 11 and the outer shell 12, so that the silencing effect of the shell 1 is improved, and the silencing effect of the whole silencer is further improved.
Referring to fig. 1 to 8, the sub sound attenuation unit 21 includes a sound attenuation inner shell 211, a sound attenuation outer shell 212, and a second sound attenuation structure 213 located between the sound attenuation inner shell 211 and the sound attenuation outer shell 212, where the sound attenuation inner shell 211 and the sound attenuation outer shell 212 are each provided with a second sound attenuation hole 214, the second sound attenuation hole 214 includes, for example, a circular hole, the sound attenuation inner shell 211 is configured as a cylindrical shell, and the second sound attenuation structure 213 includes a plurality of sound attenuation layers, and the plurality of sound attenuation layers are sequentially arranged from the sound attenuation inner shell 211 to the sound attenuation outer shell 212. The sub-silencing unit 21 is provided with a silencing inner shell 211 and a silencing outer shell 212 which are provided with second silencing holes 214, and a plurality of silencing layers are arranged between the silencing inner shell 211 and the silencing outer shell 212, so that the silencing effect of the sub-silencing unit 21 is improved, the silencing effect of the whole main silencing unit 2 is improved, and the silencing effect of the silencer is improved. In addition, an inner circular honeycomb silencing channel is arranged in the sub-silencing unit 21; and make the wind flow more stable; the noise reduction area is increased, and the noise elimination effect is further improved.
Referring to fig. 1 to 9, the muffler includes a fixing clip 4 and a connecting member 3, and the housing 1 is fixedly connected to the main body muffler unit 2 through the fixing clip 4 and the connecting member 3; and, the adjacent sub sound attenuation units 21 are fixedly connected by the fixing buckle 4 and the connecting piece 3. In the silencer, the fixing modes between the sub-silencing units 21 and between the main silencing unit 2 and the shell 1 are more flexible and reliable, and the replacement is more convenient.
In the silencer, the silencing passage area reaches 60%, the circumference of the silencing section is increased by about 50% compared with that of a structural sheet type silencer or a traditional array type silencer, the wind speed between the sub-silencing units 21 is reduced, silencing and noise reduction are carried out through a honeycomb round hole formed by the silencing inner shell 211 and the second silencing hole 214 on the silencing outer shell 212, the inner shell 11 provided with the first silencing hole on the shell 1 and the silencing structure, and the silencing effect is improved.
The sound absorption effect of the silencer is remarkable, and the sound absorption can reach 25-30 decibels under the same capacity; the silencer is simple in structure, and compared with the existing silencer, the silencer is more convenient to transport, install on site, maintain later and disassemble; the process of the silencer is more simplified, the shell 1 is formed by welding a flange and a steel plate, the sub-silencing units 21 can be produced in a standardized manner in batches, and the whole manufacturing process is simple and rapid; moreover, due to the change of the fixing mode, the weight of each main body silencing unit 2 is reduced by 20-30%, and the connection is convenient and reliable.
Further, referring to fig. 4, the second sound-deadening structure 213 includes three sound-deadening layers, where the sound-deadening layer located in the middle layer includes sound-deadening cotton with a first volume weight, the sound-deadening layer located in the outer layer includes sound-deadening cotton with a second volume weight, and the first volume weight is smaller than the second volume weight, the second sound-deadening structure 213 in the sub-sound-deadening unit 21 is improved to three layers in a targeted manner, and the sound-deadening effect is enhanced by using sound-deadening cotton with different volume weights.
In one embodiment, referring to fig. 6 to 8, the sub sound attenuation unit 21 further includes a sound attenuation stopper structure 215, the sound attenuation inner shell 211, the sound attenuation outer shell 212 and the second sound attenuation structure 213 form a main body sound attenuation part of the sub sound attenuation unit 21, the main body sound attenuation part is configured as a second cylindrical structure, the sound attenuation stopper structure 215 is located at two ends of the second cylindrical structure and used for stopping two ends of the second cylindrical structure, and the sound attenuation stopper structure 215 is fixedly connected with the second cylindrical structure. The integral structure stability of the sub-silencing units 21 is improved by arranging the silencing plugging head structures 215, so that the sub-silencing units 21 are convenient to fix and detach, and the construction efficiency is improved.
In one embodiment, referring to fig. 6 to 8, the sub sound attenuation unit 21 further includes a plurality of supporting frames 5, the supporting frames 5 are located inside the sound attenuation housing 212, and the supporting frames 5 improve the reliability of connection between the sub sound attenuation units 21, thereby improving the structural stability of the whole main sound attenuation unit 2. Further, the plurality of supporting frameworks 5 are uniformly distributed along the axial direction of the sub-silencing unit 21, so that the stability of the overall structure of the main silencing unit 2 is further improved.
In one embodiment, as shown in fig. 1 to 9, two fixing clips 4 are provided for each connecting element 3, respectively a first fixing clip and a second fixing clip, the first fixing clip being fixedly connected to the housing 1, for example, by a bolt assembly, a screw assembly and a clip. The second fixing clip is connected with the main body sound attenuation unit 2, for example, by a bolt assembly or a screw assembly. The two ends of the connecting piece 3 are respectively fixedly connected with the first fixing buckle and the second fixing buckle in a buckling connection mode, a welding connection mode, an adhesion connection mode or a thread connection mode. The main body silencing unit 2 is fixedly connected with the shell 1 through the connecting piece 3 and the fixing buckle 4, the connecting mode is flexible and reliable, the installation and the disassembly are convenient, and the subsequent maintenance is convenient.
Further, as shown in fig. 1 to 9, each of the connecting members 3 is provided with two fixing clips 4, namely a first fixing clip and a second fixing clip, wherein the first fixing clip is fixedly connected with one of the adjacent sub-muffler units 21, for example, by a bolt assembly or a screw assembly. The second fixing clip is fixedly connected with the other one of the adjacent sub sound attenuation units 21, for example, by a bolt assembly or a screw assembly. The two ends of the connecting piece 3 are respectively fixedly connected with the first fixing buckle and the second fixing buckle in a buckling connection mode, a welding connection mode, an adhesion connection mode or a thread connection mode. The fixed connection between the sub-noise elimination units 21 is realized through the connecting piece 3 and the fixed buckle 4, the connecting mode is flexible and reliable, the installation and the disassembly are convenient, and the subsequent maintenance is also convenient.
In one particular embodiment, as shown with reference to fig. 1-9, the muffler is mainly composed of a housing 1 and a main body sound-deadening unit 2, wherein the main body sound-deadening unit 2 includes a plurality of sub sound-deadening units 21.
The sub-silencing units 21 are combined and placed into the shell 1 piece by piece, and are inserted into the fixed buckles 4 at the two ends of each silencing unit through the connecting pieces 3 to be fixedly connected with the inside of the shell 1; the number of the sub-silencing units 21 is determined according to the parameters of the ventilator, the area of the channel and the silencing requirement, and the sub-silencing units are inserted into the peripheries of two ends of each sub-silencing unit 21 through the connecting pieces 3 and are fixedly connected with each other by 8 fixed buckles 4. If the sub-silencing unit 21 needs to be replaced, disassembled and cleaned in the later period, the sub-silencing unit 21 can be taken down for operation only by disassembling 8 connecting pieces 3 around two ends. The sub-silencing units 21 in the application are different from the sub-silencing units 21 of the traditional structural sheet type silencer and the traditional array type silencer, and a honeycomb type inner circular silencing channel is added, so that the ventilation area is increased, and the wind speed is reduced; the perimeter of the silencing section is increased, and the sound absorption effect is improved.
Compared with the shell 1 of the traditional array type silencer, the shell 1 of the rectangular array type silencer is additionally provided with the first silencing structure 13 and the inner plate provided with the first silencing holes, so that the silencing effect is improved;
compared with the traditional array type silencer, the sub-silencing unit 21 is additionally provided with the silencing inner shell 211 provided with the second silencing holes 214 to form an inner circular honeycomb silencing channel, so that wind current is more stable, the area of the silencing channel can be increased, and the silencing effect is improved;
the second silencing structure 213 in the sub-silencing unit 21 is arranged as a multilayer structure, so that the silencing effect is better;
in this silencer, the fixed mode between main part noise elimination unit 2 and casing 1, between sub-noise elimination unit 21 is more nimble, reliable, and this silencer is compared noise elimination unit transportation, field installation, later maintenance, dismantlement with current silencer more convenient.
The above embodiments are only used for illustrating the present invention, and not for limiting the present invention, and those skilled in the relevant technical field can make various changes and modifications without departing from the spirit and scope of the present invention, so that all equivalent technical solutions also belong to the scope of the present invention, and the protection scope of the present invention should be defined by the claims.
Claims (10)
1. The rectangular array type silencer comprises a main body silencing unit and a rectangular shell, wherein the main body silencing unit is positioned in the shell and fixedly connected with the shell, the main body silencing unit comprises a plurality of sub silencing units, the sub silencing units are arranged in the shell in an array mode, and adjacent sub silencing units in the sub silencing units are fixedly connected;
the shell comprises an inner plate, an outer plate and fixing flanges, wherein the inner plate comprises first silencing holes, the inner plate is enclosed to form an inner shell, the outer plate is enclosed to form an outer shell, a first silencing structure is arranged between the inner shell and the outer shell, the inner shell, the outer shell and the first silencing structure form a first cylindrical structure, and the fixing flanges are located at two ends of the first cylindrical structure and fixedly connected with the first cylindrical structure to form the shell;
the sub-silencing unit comprises a silencing inner shell, a silencing outer shell and a second silencing structure positioned between the silencing inner shell and the silencing outer shell, the silencing inner shell and the silencing outer shell are both provided with second silencing holes, the silencing inner shell is structured into a cylindrical shell, the second silencing structure comprises a plurality of silencing layers, and the silencing layers are sequentially arranged from the silencing inner shell to the silencing outer shell;
the muffler comprises a fixed buckle and a connecting piece,
the shell is fixedly connected with the main body silencing unit through the fixing buckle and the connecting piece; and the adjacent sub-silencing units are fixedly connected with the connecting piece through the fixing buckles.
2. The rectangular array muffler of claim 1, wherein the second muffling structure comprises three muffling layers, wherein the muffling layer at the middle layer comprises muffling cotton having a first volume weight, the muffling layer at the outer layer comprises muffling cotton having a second volume weight, and the first volume weight is smaller than the second volume weight.
3. The rectangular array muffler of claim 1, wherein the sub muffler unit further comprises a muffler plugging head structure, the muffler inner shell, the muffler outer shell and the second muffler structure form a main body muffler portion of the sub muffler unit, the main body muffler portion is configured as a second cylindrical structure, and the muffler plugging head structure is located at two ends of the second cylindrical structure for plugging two ends of the second cylindrical structure.
4. The rectangular array muffler of claim 3, wherein the muffler plug structure is fixedly connected to the second cylindrical structure.
5. The rectangular array muffler of claim 1,
the sub-silencing unit further comprises a plurality of supporting frameworks, and the supporting frameworks are located on the inner side of the silencing shell.
6. The rectangular array muffler of claim 5, wherein the plurality of support skeletons are uniformly distributed along an axial direction of the sub muffler unit.
7. The rectangular array muffler of claim 1, wherein the first muffling structure comprises muffling cotton.
8. The rectangular array muffler of claim 1,
the first muffling aperture comprises a circular aperture; and/or the presence of a gas in the gas,
the second muffling aperture comprises a circular aperture.
9. The rectangular array muffler of any one of claims 1 to 8, wherein each of the connectors is configured with two fixing clips, namely a first fixing clip and a second fixing clip, the first fixing clip is fixedly connected to the housing, the second fixing clip is connected to the main body muffling unit, and two ends of each of the connectors are fixedly connected to the first fixing clip and the second fixing clip.
10. The rectangular array muffler of claim 9, wherein the first fixing clip is fixedly coupled to one of the adjacent sub-muffler units, and the second fixing clip is fixedly coupled to the other of the adjacent sub-muffler units.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158451.1U CN212484933U (en) | 2020-09-27 | 2020-09-27 | Rectangular array type silencer |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202022158451.1U CN212484933U (en) | 2020-09-27 | 2020-09-27 | Rectangular array type silencer |
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| CN212484933U true CN212484933U (en) | 2021-02-05 |
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| CN202022158451.1U Active CN212484933U (en) | 2020-09-27 | 2020-09-27 | Rectangular array type silencer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628603A (en) * | 2021-08-30 | 2021-11-09 | 武汉理工大学 | Combined silencer |
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2020
- 2020-09-27 CN CN202022158451.1U patent/CN212484933U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113628603A (en) * | 2021-08-30 | 2021-11-09 | 武汉理工大学 | Combined silencer |
| CN113628603B (en) * | 2021-08-30 | 2023-08-29 | 武汉理工大学 | Combined silencer |
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