CN102900708A - Large air-cooling fan sheet muffling device - Google Patents
Large air-cooling fan sheet muffling device Download PDFInfo
- Publication number
- CN102900708A CN102900708A CN2012104592536A CN201210459253A CN102900708A CN 102900708 A CN102900708 A CN 102900708A CN 2012104592536 A CN2012104592536 A CN 2012104592536A CN 201210459253 A CN201210459253 A CN 201210459253A CN 102900708 A CN102900708 A CN 102900708A
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- sheet
- muffling
- blower fan
- fan
- muffler
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Abstract
The invention relates to a large air-cooling fan sheet muffling device. The large air-cooling fan sheet muffling device is characterized by comprising a motor, a fan, a wind tube and a muffler, wherein the bottom of the motor is provided with the fan, the wind tube is sheathed outside the fan, the bottom of the wind tube is provided with the muffler, a transition section is arranged between the wind tube and the muffler, multiple muffling sheets are arranged in the muffler, the outer surface of each muffling sheet is provided with a perforated plate, and ultrafine muffling cotton is filled in the perforated plate. The large air-cooling fan sheet muffling device provided by the invention has the advantages that height of each muffling sheet of the muffler in the large air-cooling fan sheet muffling device is 2000mm, the thickness of each muffling sheet is 150mm, the sheet space is 400mm, the outer surface of each muffling sheet is the perforated plate with perforating rate of 25%, the muffler is arranged at the lower part in the large air-cooling fan sheet muffling device, and the air inflow field of an impeller of the fan at the upper part can be improved, so that the efficiency of the fan is improved by 1.5%, the space of an air cooling island is fully utilized without increasing the mounting space of equipment, and an ultralow noise level is achieved.
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 chip silencer.
Background technique
The large-scale air cooling blower fan is mainly used in power station, cement plant, machinery plant etc., this factory easily is subjected to the impact of environment, dust and noise are topmost pollution sources, large-scale air cooling blower fan energy consumption in operation is high, and noise is larger, has had a strong impact on the operator's of plant area production and life, serious harm is healthy to the staff's, therefore, for addressing the above problem, the spy provides a kind of new technology bill to satisfy the demands.
Summary of the invention
The purpose of this invention is to provide a kind of large-scale air cooling blower fan chip silencer.
The technical solution used in the present invention is:
A kind of large-scale air cooling blower fan chip silencer, comprise motor, blower fan, air duct and silencing apparatus, described motor bottom is provided with blower fan, described blower fan outer cover has air duct, described air duct bottom is provided with silencing apparatus, is provided with changeover portion between described air duct and the silencing apparatus, is provided with the multi-disc anechoic sheet in the described silencing apparatus, described anechoic sheet outer surface is provided with porous slab, is filled with ultra-fine noise elimination in the described porous slab cotton.
Described multi-disc anechoic sheet be arranged in parallel, leaves a segment distance between described anechoic sheet and the anechoic sheet.
Advantage of the present invention is: the anechoic sheet height of the silencing apparatus in the large-scale air cooling blower fan chip silencer is 2000mm, anechoic sheet thickness 150mm, pitch of fins 400mm, the anechoic sheet outer surface is the porous slab of 25% punching rate, the installation of large-scale air cooling blower fan chip silencer middle and lower part silencing apparatus can improve the inlet flow field of top draught fan impeller, makes fan efficiency improve 1.5%, take full advantage of the space of Air-Cooling Island and do not need to increase in addition the installing space of equipment, reach the super low noise level.
Description of drawings
Below in conjunction with the drawings and specific embodiments the present invention is described in further detail.
Fig. 1 is structural representation of the present invention.
Fig. 2 be among Fig. 1 A-A to structural representation.
Wherein: 1, motor, 2, blower fan, 3, air duct, 4, silencing apparatus, 5, changeover portion, 6, anechoic sheet, 7, porous slab.
Embodiment
As shown in Figure 1, a kind of large-scale air cooling blower fan chip silencer of the present invention comprises motor 1, blower fan 2, air duct 3 and silencing apparatus 4, and motor 1 bottom is provided with blower fan 2, blower fan 2 outer cover have air duct 3, air duct 3 bottoms are provided with silencing apparatus 4, are provided with changeover portion 5 between air duct 3 and the silencing apparatus 4, are provided with multi-disc anechoic sheet 6 in the silencing apparatus 4, multi-disc anechoic sheet 6 be arranged in parallel, leave a segment distance between anechoic sheet 6 and the anechoic sheet 6, anechoic sheet 6 outer surfaces are provided with porous slab 7, are filled with ultra-fine noise elimination in the porous slab cotton.
Advantage of the present invention is: the anechoic sheet height of the silencing apparatus in the large-scale air cooling blower fan chip silencer is 2000mm, anechoic sheet thickness 150mm, pitch of fins 400mm, the anechoic sheet outer surface is the porous slab of 25% punching rate, the installation of large-scale air cooling blower fan chip silencer middle and lower part silencing apparatus can improve the inlet flow field of top draught fan impeller, makes fan efficiency improve 1.5%, take full advantage of the space of Air-Cooling Island and do not need to increase in addition the installing space of equipment, reach the super low noise level.
Claims (2)
1. large-scale air cooling blower fan chip silencer, it is characterized in that: comprise motor, blower fan, air duct and silencing apparatus, described motor bottom is provided with blower fan, described blower fan outer cover has air duct, described air duct bottom is provided with silencing apparatus, is provided with changeover portion between described air duct and the silencing apparatus, is provided with the multi-disc anechoic sheet in the described silencing apparatus, described anechoic sheet outer surface is provided with porous slab, is filled with ultra-fine noise elimination in the described porous slab cotton.
2. a kind of large-scale air cooling blower fan chip silencer according to claim 1, it is characterized in that: described multi-disc anechoic sheet be arranged in parallel, leaves a segment distance between described anechoic sheet and the anechoic sheet.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104592536A CN102900708A (en) | 2012-11-15 | 2012-11-15 | Large air-cooling fan sheet muffling device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012104592536A CN102900708A (en) | 2012-11-15 | 2012-11-15 | Large air-cooling fan sheet muffling device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN102900708A true CN102900708A (en) | 2013-01-30 |
Family
ID=47573127
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012104592536A Pending CN102900708A (en) | 2012-11-15 | 2012-11-15 | Large air-cooling fan sheet muffling device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102900708A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422945A (en) * | 2013-08-20 | 2013-12-04 | 周挺 | Muffler with filtering function |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131352A (en) * | 1990-09-03 | 1992-07-21 | Nippondenso Co., Ltd. | Cooling fan apparatus for an automobile |
| CN201199132Y (en) * | 2008-02-26 | 2009-02-25 | 北京绿创声学工程股份有限公司 | Mechanical-draft cooling tower muffler |
| CN102072202A (en) * | 2011-01-12 | 2011-05-25 | 浙江海洋学院 | Sound-absorption and noise-reduction device of compact fishing boat cabin ventilator |
| 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 |
| CN102720708A (en) * | 2012-06-29 | 2012-10-10 | 无锡杰尔压缩机有限公司 | Muffling structure of fan filter muffler |
| CN202883499U (en) * | 2012-11-15 | 2013-04-17 | 江苏中联风能机械有限公司 | Plate-type sound elimination device for large-scale air cooling fan |
-
2012
- 2012-11-15 CN CN2012104592536A patent/CN102900708A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5131352A (en) * | 1990-09-03 | 1992-07-21 | Nippondenso Co., Ltd. | Cooling fan apparatus for an automobile |
| CN201199132Y (en) * | 2008-02-26 | 2009-02-25 | 北京绿创声学工程股份有限公司 | Mechanical-draft cooling tower muffler |
| CN102072202A (en) * | 2011-01-12 | 2011-05-25 | 浙江海洋学院 | Sound-absorption and noise-reduction device of compact fishing boat cabin ventilator |
| 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 |
| CN102720708A (en) * | 2012-06-29 | 2012-10-10 | 无锡杰尔压缩机有限公司 | Muffling structure of fan filter muffler |
| CN202883499U (en) * | 2012-11-15 | 2013-04-17 | 江苏中联风能机械有限公司 | Plate-type sound elimination device for large-scale air cooling fan |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103422945A (en) * | 2013-08-20 | 2013-12-04 | 周挺 | Muffler with filtering function |
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| 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: 20130130 |