CN203441831U - Power plant primary air fan inlet noise elimination device - Google Patents
Power plant primary air fan inlet noise elimination device Download PDFInfo
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- CN203441831U CN203441831U CN201320386989.5U CN201320386989U CN203441831U CN 203441831 U CN203441831 U CN 203441831U CN 201320386989 U CN201320386989 U CN 201320386989U CN 203441831 U CN203441831 U CN 203441831U
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- primary air
- air fan
- noise elimination
- power plant
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Abstract
The utility model discloses a power plant primary air fan inlet noise elimination device which comprises an air opening rain stop plate (12), a primary air fan inlet noise elimination device body (13) and an air fan pipe (14). The power plant primary air fan inlet noise elimination device is characterized in that the primary air fan inlet noise elimination device body (13) comprises a noise elimination device body outer shell, noise elimination assemblies (2) and a protective screen (9), the noise elimination device body outer shell is composed of square metal pipe bodies (1), the noise elimination assemblies (2) are arranged inside the noise elimination device body outer shell at intervals, gaps between the adjacent noise elimination assemblies (2) form air inlet channels (3), the square metal pipe bodies (1) are composed of outer plates made of hot-dip galvanizing metal steel plates (15), inner plates made of perforated plates (6) and noise absorption cotton (8) wrapped by hydrophobic films (7), the noise absorption cotton (8) wrapped by the hydrophobic films (7) is placed between the inner plates and the outer plates, the noise elimination assemblies (2) comprise the perforated plates (6), frameworks (11) and the noise absorption cotton (8) wrapped by the hydrophobic films (7), the noise absorption cotton (8) wrapped by the hydrophobic films (7) are placed between the perforated plates (6) and fixedly supported with the frameworks (11), and flow guiding arcs (4) are installed at the two ends of the noise absorption cotton (8) wrapped by the hydrophobic films (7). The power plant primary air fan inlet noise elimination device is simple in structure and convenient to assemble in the earlier stage and disassemble and maintain in the later stage.
Description
Technical field
The utility model designs a kind of power plant primary air fan entrance silencer, belongs to power plant fans field of noise control.
Background technique
At blower fan inlet and outlet mouth, fixing a silencer is to solve the conventional equipment of wind-power noise, and it in actual production, for worker provides good working environment, has played very important effect as a kind of wind-power noise reducing apparatus.
Silencing apparatus is mainly that to utilize sound-absorbing porous material to fall low noise.Sound-absorbing material be fixed on the inwall of air-flow path or arrange in pipeline according to certain way, sound wave is entered wherein, part acoustic energy rubs and changes into thermal energy consumption and dissipate in the hole of porous material, thereby makes to weaken by the sound wave of silencing apparatus, reaches noise reduction object.
Power plant fans is all large-scale high pressure flow-mixing blower fan, and air quantity is large, and pressure head is high, and installed power is large, and wherein the installed power of primary air fan, pressure head are higher.Traditional silencing apparatus windage is large, weight is large, installs early stage and later maintenance difficulty, is therefore subject to a lot of restrictions.
The utility model is for solving the above-mentioned deficiency of conventional muffler, for power plant fans entrance, providing a kind of is not affecting on the basis of noise reduction, reduce windage, effectively noise reduction, provides a kind of installation and later stage field-strip Wind Volume dissipative muffler easily for power plant fans entrance.
Summary of the invention
The utility model is mainly for a kind of power plant primary air fan entrance silencer of power plant's primary air fan ingress noise design, this power plant fans entrance silencer, comprise air port weather shield 12, primary air fan entrance muffler body 13 and Fan pipeline 14, it is characterized in that: described primary air fan entrance muffler body 13 comprises muffler body shell, sound attenuation assembly 2 and the protective net 9 that square metal body 1 forms; The interval that wherein muffler body enclosure is intervally arranged between sound attenuation assembly 2, two sound attenuation assemblies 2 forms air intake passage 3; Described square metal body 1 is by the outside plate of galvanizing metal foil 15, and the inner panel of perforated plate 6 and the acoustical cotton 8 being wrapped up by hydrophobic membrane 7 form, and the acoustical cotton 8 wherein being wrapped up by hydrophobic membrane 7, is positioned between inner panel and outside plate; Described sound attenuation assembly 2 comprises perforated plate 6, skeleton 11 and the acoustical cotton 8 being wrapped up by hydrophobic membrane 7, and the acoustical cotton 8 wherein being wrapped up by hydrophobic membrane 7 is positioned between two perforated plates 6, is supported and fixes, and at two ends, water conservancy diversion arc 4 is installed by skeleton 11.
Wherein sound attenuation assembly 2 mounting process hangers 5, conveniently transportation and installation.
Wherein square metal body 1 two ends arrange fixed angles steel flange 10, and described angle steel flange 10 is directly fixing with Fan pipeline 14 when mounted.
Accompanying drawing explanation
Accompanying drawing 1 is the facade cut away view of primary air fan entrance muffler body
Accompanying drawing 2 is the plane cut away view of primary air fan entrance muffler body
Accompanying drawing 3 is primary air fan entrance muffler body side view
Accompanying drawing 4 is sound attenuation assembly structural drawing
Accompanying drawing 5 is primary air fan entrance muffler body side-looking cut away view
Accompanying drawing 6 is power plant fans entrance silencer scheme of installation
Wherein:
1 is square metal body
2 is sound attenuation assembly,
3 is air intake passage
4 is water conservancy diversion arc
5 is technique hanger
6 is perforated plate
7 is hydrophobic membrane
8 is acoustical cotton
9 is protective net
10 is angle steel flange
11 is skeleton
12 is air port weather shield
13 is primary air fan entrance muffler body
14 is Fan pipeline
15 is galvanizing metal foil.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is described
As shown in Figure 6, this power plant fans entrance silencer, comprises air port weather shield 12, primary air fan entrance muffler body 13 and Fan pipeline 14;
As shown in accompanying drawing 1, accompanying drawing 2, accompanying drawing 3, accompanying drawing 5, this primary air fan entrance muffler body 13 comprises muffler body shell, sound attenuation assembly 2 and the protective net 9 that square metal body 1 forms; The interval that wherein muffler body enclosure is intervally arranged between sound attenuation assembly 2, two sound attenuation assemblies 2 forms air intake passage 3; Described square metal body 1 is by the outside plate of galvanizing metal foil 15, and the inner panel of perforated plate 6 and the acoustical cotton 8 being wrapped up by hydrophobic membrane 7 form, and the acoustical cotton 8 wherein being wrapped up by hydrophobic membrane 7, is positioned between inner panel and outside plate; Fixed angles steel flange 10 is installed at muffler body shell two ends, during installation, directly fixes with Fan pipeline 14; Air intake at primary air fan entrance muffler body 13 is installed protective net 9; Sound attenuation assembly 2 mounting process hangers 5 are to facilitate transportation and to install.
As shown in Figure 4, sound attenuation assembly 2 comprises perforated plate 6, skeleton 11 and the acoustical cotton 8 being wrapped up by hydrophobic membrane 7, and the acoustical cotton 8 wherein being wrapped up by hydrophobic membrane 7 is positioned between two perforated plates 6, is supported and fixes, and at two ends, water conservancy diversion arc 4 is installed by skeleton 11.
As shown in Figure 5, square metal body 1 is by the outside plate of galvanizing metal foil 15, and the inner panel of perforated plate 6 and the acoustical cotton 8 being wrapped up by hydrophobic membrane 7 form, and the acoustical cotton 8 wherein being wrapped up by hydrophobic membrane 7, is positioned between inner panel and outside plate.
With time according to the requirement of primary air fan air channel size, air quantity and sound deadening capacity, design square metal body 1 and sound attenuation assembly 2, in on-site hoisting, install, silencing apparatus angle steel flange 10 is directly fixing with Fan pipeline 14, is convenient to on-the-spot installation.
Technique effect
Power plant fans entrance silencer that the utility model is asked for protection is simple in structure, for installing early stage and later stage field-strip is provided convenience.Square metal body can be compound in scene, and sound attenuation assembly is transported to on-the-spot directly installation after factory process completes, and the design of hanger has facilitated transportation and lifting.The design of water conservancy diversion arc can reduce windage effectively, and the air-flow of optimizing in passage makes air intake smooth, reduces wind and makes an uproar, and further reduces noise on the basis of sound attenuation assembly sound absorption; Hydrophobic membrane has been protected acoustical cotton well in addition, has lengthened the working life of silencer.
The foregoing is only a kind of mode of execution of the present utility model, it not whole or unique mode of execution, the conversion of any equivalence that those of ordinary skills take technical solutions of the utility model by reading specification of the present invention, is claim of the present utility model and contains.
Claims (4)
1.Yi Zhong power plant primary air fan entrance silencer, comprise air port weather shield (12), primary air fan entrance muffler body (13) and Fan pipeline (14), it is characterized in that: described primary air fan entrance muffler body (13) comprises metal shell, sound attenuation assembly (2) and the protective net (9) that square metal body (1) forms; The metal shell internal layout sound attenuation assembly (2) of arranging wherein, the interval between two sound attenuation assemblies (2) forms air intake passage (3); Described square metal body (1) is by the outside plate of galvanizing metal foil (15), the inner panel of perforated plate (6) and the acoustical cotton (8) being wrapped up by hydrophobic membrane (7) form, wherein, by the acoustical cotton (8) of hydrophobic membrane (7) parcel, be positioned between inner panel and outside plate; Described sound attenuation assembly (2) comprises perforated plate (6), skeleton (11) and the acoustical cotton (8) being wrapped up by hydrophobic membrane (7), wherein by the acoustical cotton (8) of hydrophobic membrane (7) parcel, be positioned between two perforated plates (6), by skeleton (11), supported and fix, and at two ends, water conservancy diversion arc (4) is installed.
2. a kind of power plant according to claim 1 primary air fan entrance silencer, is characterized in that described sound attenuation assembly (2) mounting process hanger (5).
3. a kind of power plant according to claim 1 primary air fan entrance silencer, it is characterized in that described square metal body (1) two ends arrange fixed angles steel flange (10), described angle steel flange (10) is directly fixing with Fan pipeline (14) when mounted.
4. a kind of power plant according to claim 1 primary air fan entrance silencer, is characterized in that described protective net (9) is arranged on the air intake place of primary air fan entrance muffler body (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386989.5U CN203441831U (en) | 2013-07-02 | 2013-07-02 | Power plant primary air fan inlet noise elimination device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320386989.5U CN203441831U (en) | 2013-07-02 | 2013-07-02 | Power plant primary air fan inlet noise elimination device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203441831U true CN203441831U (en) | 2014-02-19 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320386989.5U Expired - Fee Related CN203441831U (en) | 2013-07-02 | 2013-07-02 | Power plant primary air fan inlet noise elimination device |
Country Status (1)
| Country | Link |
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| CN (1) | CN203441831U (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538021A (en) * | 2014-11-21 | 2015-04-22 | 世纪良基投资集团有限公司 | Formaldehyde-free environment-friendly silencer |
| CN106251917A (en) * | 2016-08-25 | 2016-12-21 | 中国科学院合肥物质科学研究院 | A kind of tubular type passive air cooling system external disaster preventer |
| CN109869354A (en) * | 2019-04-19 | 2019-06-11 | 临沂远通风机有限公司 | Muffler for fan |
| CN110725811A (en) * | 2018-07-16 | 2020-01-24 | 中兴通讯股份有限公司 | Communication equipment |
| CN112576552A (en) * | 2020-12-03 | 2021-03-30 | 亿昇(天津)科技有限公司 | Skid-mounted structure and air supply system |
-
2013
- 2013-07-02 CN CN201320386989.5U patent/CN203441831U/en not_active Expired - Fee Related
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104538021A (en) * | 2014-11-21 | 2015-04-22 | 世纪良基投资集团有限公司 | Formaldehyde-free environment-friendly silencer |
| CN106251917A (en) * | 2016-08-25 | 2016-12-21 | 中国科学院合肥物质科学研究院 | A kind of tubular type passive air cooling system external disaster preventer |
| CN106251917B (en) * | 2016-08-25 | 2017-11-03 | 中国科学院合肥物质科学研究院 | A kind of passive air cooling system external disaster protector of tubular type |
| CN110725811A (en) * | 2018-07-16 | 2020-01-24 | 中兴通讯股份有限公司 | Communication equipment |
| CN109869354A (en) * | 2019-04-19 | 2019-06-11 | 临沂远通风机有限公司 | Muffler for fan |
| CN112576552A (en) * | 2020-12-03 | 2021-03-30 | 亿昇(天津)科技有限公司 | Skid-mounted structure and air supply system |
| CN112576552B (en) * | 2020-12-03 | 2022-05-17 | 亿昇(天津)科技有限公司 | Skid-mounted structure and air supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140219 Termination date: 20210702 |