CN202851474U - Silencer of middle-low pressure centrifugal fan - Google Patents
Silencer of middle-low pressure centrifugal fan Download PDFInfo
- Publication number
- CN202851474U CN202851474U CN 201220441876 CN201220441876U CN202851474U CN 202851474 U CN202851474 U CN 202851474U CN 201220441876 CN201220441876 CN 201220441876 CN 201220441876 U CN201220441876 U CN 201220441876U CN 202851474 U CN202851474 U CN 202851474U
- Authority
- CN
- China
- Prior art keywords
- silencer
- centrifugal fan
- low pressure
- pressure centrifugal
- barrel body
- 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.)
- Expired - Fee Related
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Abstract
The utility model belongs to the field of silencers, and particularly relates to a silencer of a middle-low pressure centrifugal fan. The silencer is used for lowering air power noise of a low-pressure centrifugal fan and a boiler air blower in industrial and civil buildings. The silencer of the middle-low pressure centrifugal fan comprises a silencer barrel body and is characterized in that two ends of the silencer barrel body are connected with connecting flanges, and a plurality of silencing pieces are arranged in the silencer barrel body. According to the silencer of the middle-low pressure centrifugal fan, the structure of each silencing piece and the arrangement mode of the silencing pieces in the silencer barrel body are improved, the contact size of the silencing pieces is enlarged, a good silencing effect is achieved, requirements of various using environments are met, and meanwhile, the silencer for of the middle-low pressure centrifugal fan is reasonable in structure and small in size, thereby meeting the size requirements of various using conditions, and the silencer of the middle-low pressure centrifugal fan is light in weight and convenient to mount, labor intensity of mounting workers is lowered, and mounting time is shortened.
Description
Technical field
The utility model belongs to the silencing apparatus field, and particularly a kind of mesolow centrifugal fan muffler is for reducing the low pressure centrifugal blower in industry and the civil building and the air power noise of boiler blower.。
Background technique
Silencing apparatus is to stop sound transmission and a kind of device of allowing air-flow to pass through, is the important measures of eliminating air power noise.Silencing apparatus is mounted in the low noise device that falls on the air-flow path of aerodynamic force equipment (such as blower, air compressor) or in the inlet and exhaust system.Silencing apparatus can stop the propagation of sound wave, allows air-flow to pass through, and is the effective tool of control noise.At present, the arrangement of anechoic sheet is single in the centrifugal fan muffler, and the area of contact of anechoic sheet is little, and sound deadening capacity is very low, can not play good soundproof effect, causes very large impact to working environment.
Summary of the invention
For the deficiencies in the prior art, the utility model has designed a kind of simple in structure, soundproof effect good and the pressure loss is little mesolow centrifugal fan muffler.
The utility model is achieved through the following technical solutions:
The mesolow centrifugal fan muffler, it comprises silencer cylinder, it is characterized in that: the two ends of described silencer cylinder are connected with adpting flange, are provided with a plurality of anechoic sheets in the described silencer cylinder.
Described a plurality of anechoic sheet is V-shaped.The employing V-structure designs, and can effectively increase the area of anechoic sheet, improves soundproof effect.
The cross section of described silencer cylinder be the square, the two ends of described anechoic sheet be connected to silencer cylinder along on the centrosymmetric wedge angle.
In sum, the utility model improves by structure and the arrangement of anechoic sheet in silencer cylinder to anechoic sheet, increase the area of contact of anechoic sheet, had preferably soundproof effect, satisfied the environmental requirement of various Environmental Conditions, the utility model is rational in infrastructure simultaneously, the little volume requirement that satisfies various use occasions of volume, and the utility model lighter weight are convenient to install, reduce installer's labor intensity, also shortened the installation time.
Description of drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is side view of the present utility model;
1 is adpting flange among the figure, and 2 is silencer cylinder, and 3 is anechoic sheet.
Embodiment
Below in conjunction with accompanying drawing the utility model is described further.
Mesolow centrifugal fan muffler as depicted in figs. 1 and 2, it comprises silencer cylinder 2, it is characterized in that: the two ends of described silencer cylinder 2 are connected with adpting flange 1, are provided with a plurality of anechoic sheets 3 in the described silencer cylinder 2.
Described a plurality of anechoic sheet 3 is V-shaped.The employing V-structure designs, and can effectively increase the area of anechoic sheet, improves soundproof effect.
The cross section of described silencer cylinder 3 be the square, the two ends of described anechoic sheet be connected to silencer cylinder along on the centrosymmetric wedge angle.
In sum, the utility model improves by structure and the arrangement of anechoic sheet in silencer cylinder to anechoic sheet, increase the area of contact of anechoic sheet, had preferably soundproof effect, satisfied the environmental requirement of various Environmental Conditions, the utility model is rational in infrastructure simultaneously, the little volume requirement that satisfies various use occasions of volume, and the utility model lighter weight are convenient to install, reduce installer's labor intensity, also shortened the installation time.
Claims (3)
1. mesolow centrifugal fan muffler, it comprises silencer cylinder, it is characterized in that: the two ends of described silencer cylinder are connected with adpting flange, are provided with a plurality of anechoic sheets in the described silencer cylinder.
2. mesolow centrifugal fan muffler according to claim 1, it is characterized in that: described a plurality of anechoic sheets are V-shaped.
3. mesolow centrifugal fan muffler according to claim 1 is characterized in that: the cross section of described silencer cylinder is square, the two ends of described anechoic sheet be connected to silencer cylinder along on the centrosymmetric wedge angle.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441876 CN202851474U (en) | 2012-08-31 | 2012-08-31 | Silencer of middle-low pressure centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220441876 CN202851474U (en) | 2012-08-31 | 2012-08-31 | Silencer of middle-low pressure centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202851474U true CN202851474U (en) | 2013-04-03 |
Family
ID=47982681
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220441876 Expired - Fee Related CN202851474U (en) | 2012-08-31 | 2012-08-31 | Silencer of middle-low pressure centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202851474U (en) |
-
2012
- 2012-08-31 CN CN 201220441876 patent/CN202851474U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20130831 |