CN202851474U - Silencer of middle-low pressure centrifugal fan - Google Patents

Silencer of middle-low pressure centrifugal fan Download PDF

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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
Application number
CN 201220441876
Other languages
Chinese (zh)
Inventor
吴捍卫
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
CHANGZHOU SOURCE OF GREEN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Original Assignee
CHANGZHOU SOURCE OF GREEN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by CHANGZHOU SOURCE OF GREEN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd filed Critical CHANGZHOU SOURCE OF GREEN ENVIRONMENTAL PROTECTION EQUIPMENT Co Ltd
Priority to CN 201220441876 priority Critical patent/CN202851474U/en
Application granted granted Critical
Publication of CN202851474U publication Critical patent/CN202851474U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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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

The mesolow centrifugal fan muffler
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.
CN 201220441876 2012-08-31 2012-08-31 Silencer of middle-low pressure centrifugal fan Expired - Fee Related CN202851474U (en)

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)

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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