CN102927061A - Annular muffler device for large-sized air cooling fan - Google Patents
Annular muffler device for large-sized air cooling fan Download PDFInfo
- Publication number
- CN102927061A CN102927061A CN2012104594495A CN201210459449A CN102927061A CN 102927061 A CN102927061 A CN 102927061A CN 2012104594495 A CN2012104594495 A CN 2012104594495A CN 201210459449 A CN201210459449 A CN 201210459449A CN 102927061 A CN102927061 A CN 102927061A
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- Prior art keywords
- air cooling
- blower fan
- silencing apparatus
- fan
- muffler
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Abstract
The invention discloses an annular muffling device for a large-sized air cooling fan, which comprises a fan, a middle transition section and a muffler, wherein the middle transition section is connected with a fan air drum and a muffler casing respectively, and muffling cotton is filled in the muffler. The annular muffler device has the advantages that as the muffler is mounted at the middle lower part of the annular muffling device for the large-sized air cooling fan, an inlet airflow field of a fan impeller at the upper part can be improved, the efficiency of the fan is improved by 1.5%, and the noise is low.
Description
Technical field
The present invention relates to a kind of silencer, relate in particular to a kind of large-scale air cooling blower fan annular silencer.
Background technique
The large-scale air cooling blower fan is applied to power station, cement plant, machinery plant etc., and this factory is subjected to the impact of environment easily, and dust, noise are primary pollution source, and the large-scale air cooling fan energy consumption is high, and noise is large, has jeopardized the healthy of the operator of plant area.Therefore, need to provide a kind of new technological scheme to solve the problems referred to above.
Summary of the invention
The purpose of this invention is to provide the little large-scale air cooling blower fan annular silencer of noise.
The technical solution used in the present invention is:
A kind of large-scale air cooling blower fan annular silencer, it comprises blower fan, middle transition section and silencing apparatus, and described middle transition section is connected with muffler shell with the blower fan air duct respectively, and described silencing apparatus inside is filled with silencing cotton.
Described silencing apparatus is the annulus silencing apparatus.
Described annulus silencing apparatus outer surface is the porous slab of 25% punching rate.
Beneficial effect of the present invention: the installation of large-scale air cooling blower fan annular silencer middle and lower part silencing apparatus, can improve the inlet flow field of top draught fan impeller, make fan efficiency improve 1.5%, noise is little.
Description of drawings
Fig. 1 is structural representation of the present invention.
Fig. 2 is along A-A to view among Fig. 1.
Wherein: 1, blower fan, 2, the middle transition section, 3, air duct, 4, silencing apparatus, 5, silencing cotton, 6, porous slab.
Embodiment
The invention will be further described below in conjunction with the drawings and specific embodiments.
As illustrated in fig. 1 and 2, a kind of large-scale air cooling blower fan annular silencer of the present invention, it comprises blower fan 1, middle transition section 2 and silencing apparatus 4, middle transition section 2 is connected shell with blower fan 1 air duct 3 respectively and is connected with silencing apparatus, silencing apparatus 4 inside are filled with silencing cotton 5, silencing apparatus 4 is the annulus silencing apparatus, and annulus silencing apparatus outer surface is the porous slab 6 of 25% punching rate.
Can make the reducing noise of whole Air-Cooling Island blower fan, the installation of large-scale air cooling blower fan annular silencer middle and lower part silencing apparatus 4 can improve the inlet flow field of top blower fan 1 impeller, makes blower fan 1 efficient improve 1.5%.
Claims (3)
1. large-scale air cooling blower fan annular silencer, it is characterized in that: it comprises blower fan, middle transition section and silencing apparatus, and described middle transition section is connected with muffler shell with the blower fan air duct respectively, and described silencing apparatus inside is filled with silencing cotton.
2. a kind of large-scale air cooling blower fan annular silencer according to claim 1, it is characterized in that: described silencing apparatus is the annulus silencing apparatus.
3. a kind of large-scale air cooling blower fan annular silencer according to claim 2, it is characterized in that: described annulus silencing apparatus outer surface is the porous slab of 25% punching rate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104594495A CN102927061A (en) | 2012-11-15 | 2012-11-15 | Annular muffler device for large-sized air cooling fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104594495A CN102927061A (en) | 2012-11-15 | 2012-11-15 | Annular muffler device for large-sized air cooling fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102927061A true CN102927061A (en) | 2013-02-13 |
Family
ID=47641956
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104594495A Pending CN102927061A (en) | 2012-11-15 | 2012-11-15 | Annular muffler device for large-sized air cooling fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102927061A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217026A (en) * | 2013-05-13 | 2013-07-24 | 海门市大生水处理设备（厂）有限公司 | Energy-saving low-noise cooling tower |
| CN103225967A (en) * | 2013-05-13 | 2013-07-31 | 海门市大生水处理设备（厂）有限公司 | Energy-saving low-noise cooling tower |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10184597A (en) * | 1996-12-20 | 1998-07-14 | Ebara Corp | Sirocco fan with muffling box |
| CN2342136Y (en) * | 1998-03-13 | 1999-10-06 | 姚焕文 | Silencer for fan |
| CN2494914Y (en) * | 2000-09-15 | 2002-06-12 | 上海众汇泡沫铝材有限公司 | Foam aluminium sheet type noise absorber |
| CN202348789U (en) * | 2011-11-21 | 2012-07-25 | 山西省电力勘测设计院 | Direct air-cooling system with diversion muffling device |
| CN202900797U (en) * | 2012-11-15 | 2013-04-24 | 江苏中联风能机械有限公司 | Annular silencing device for large air cooling fan |
-
2012
- 2012-11-15 CN CN2012104594495A patent/CN102927061A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH10184597A (en) * | 1996-12-20 | 1998-07-14 | Ebara Corp | Sirocco fan with muffling box |
| CN2342136Y (en) * | 1998-03-13 | 1999-10-06 | 姚焕文 | Silencer for fan |
| CN2494914Y (en) * | 2000-09-15 | 2002-06-12 | 上海众汇泡沫铝材有限公司 | Foam aluminium sheet type noise absorber |
| CN202348789U (en) * | 2011-11-21 | 2012-07-25 | 山西省电力勘测设计院 | Direct air-cooling system with diversion muffling device |
| CN202900797U (en) * | 2012-11-15 | 2013-04-24 | 江苏中联风能机械有限公司 | Annular silencing device for large air cooling fan |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103217026A (en) * | 2013-05-13 | 2013-07-24 | 海门市大生水处理设备（厂）有限公司 | Energy-saving low-noise cooling tower |
| CN103225967A (en) * | 2013-05-13 | 2013-07-31 | 海门市大生水处理设备（厂）有限公司 | Energy-saving low-noise cooling tower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20130213 |