CN205117831U - Axial -flow fan silencer - Google Patents
Axial -flow fan silencer Download PDFInfo
- Publication number
- CN205117831U CN205117831U CN201520911118.XU CN201520911118U CN205117831U CN 205117831 U CN205117831 U CN 205117831U CN 201520911118 U CN201520911118 U CN 201520911118U CN 205117831 U CN205117831 U CN 205117831U
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- Prior art keywords
- wave filter
- air
- connecting rod
- silencer
- chamber
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- Filtering Of Dispersed Particles In Gases (AREA)
- Exhaust Silencers (AREA)
Abstract
The utility model discloses an axial -flow fan silencer, including air inlet silencer (1) connected in proper order, preceding contraction chamber (2), expansion chamber (4), air exhaust silencer (5), after -contraction chamber (6) and collection wind ware (7), air inlet silencer (1) or air exhaust silencer (5) is including metal casing and arrange the wave filter in its in, and the wave filter is by interior core wave filter (10), first layer wave filter (11) and second floor wave filter (12) of being equipped with in proper order outside to, still be equipped with between contraction chamber (2) and the expansion chamber (4) in the front fan (3), the wave filter pass through vertical connecting rod (8) and violently put down connecting rod (9) and metal casing fuses, and the wave filter is equipped with the reposition of redundant personnel head towards the one end of air intake.
Description
Technical field
The utility model relates to a kind of axial fan silencing apparatus.
Background technique
Current axial fan due to power large, air quantity is large, and in running, produce very large noise, although a part of manufacturer is provided with silencing apparatus in the Import & Export Department of blower fan, noise reduction is very poor.The noise that axial fan produces in addition can cause serious pollution to working environment, the physiological health of noise hazard staff and mental health; And the interference due to noise also can make the distraction of people in noise circumstance, working efficiency reduces, and therefore in noise circumstance, very easily produces security incident.And the air intake of axial fan silencing apparatus is acuter angles, formed by pressure, circle, weldering, operation is many; Connecting rod or plate are cut into segment and connect each layer filter, fix each layer in process of production and extremely require great effort, and one is to cut same long connecting plate or steel plate, and to size be fixed when welding, seem so particularly troublesome, easily produce not neat, cause outward appearance unsightly.
Model utility content
the technical problems to be solved in the utility model is:a kind of axial flow is provided
formulafans silencer, effectively can overcome the deficiencies such as noise reduction difference.
for solving the problems of the technologies described above, the technological scheme that the utility model is taked is:this axial fan silencing apparatus, comprises the air-inlet sound eliminator be linked in sequence successively, front contraction chamber, expansion cavity, air-discharge silencer, aftershrinkage chamber and wind collecting unit; Air-inlet sound eliminator or air-discharge silencer comprise metal shell and put wave filter in the inner, wave filter is provided with core filter, first layer wave filter and second layer wave filter from inside to outside successively, also blower fan is provided with between front contraction chamber and expansion cavity, this wave filter is connected with described metal shell by vertical connecting rod and horizontal flat connecting rod, and the wave filter of silencing apparatus is provided with shunt head towards one end of air intake.
Further, shunt head is ring arc structure.
Further, vertical connecting rod is connected with horizontal flat connecting rod is mutually vertical.
after taking technique scheme, the technique effect that the utility model reaches is:due to axial flow
formulathe wave filter air intake shunt head of fans silencer adopts grinding tool once drawing and forming, and technique is simple, and windage reduces, and outward appearance is more attractive in appearance.And have employed the structure of vertical connecting rod and horizontal flat connecting rod criss-crossing is fixed together, can position exactly.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the A-A sectional structure chart of air-inlet sound eliminator of the present utility model;
Fig. 3 is the enlarged partial sectional view of wave filter shunt head of the present utility model;
1-air-inlet sound eliminator, contraction chamber before 2-, 3-blower fan, 4-expansion cavity, 5-air-discharge silencer, 6-aftershrinkage chamber, 7-wind collecting unit, the vertical connecting rod of 8-, the horizontal flat connecting rod of 9-, 10-core filter, 11-first layer wave filter, 12-second layer wave filter.
Embodiment
Be described principle of the present utility model and feature below in conjunction with accompanying drawing, example, only for explaining the utility model, is not intended to limit scope of the present utility model.
According to shown in Fig. 1 to Fig. 3, this axial fan silencing apparatus comprises the air-inlet sound eliminator 1 be linked in sequence successively, front contraction chamber 2, expansion cavity 4, air-discharge silencer 5, aftershrinkage chamber 6 and wind collecting unit 7; Air-inlet sound eliminator 1 or air-discharge silencer 5 comprise metal shell and put wave filter in the inner, wave filter is provided with core filter 10, first layer wave filter 11 and second layer wave filter 12 from inside to outside successively, blower fan 3 is also provided with between front contraction chamber 2 and expansion cavity 4, wave filter is connected with described metal shell by vertical connecting rod 8 and horizontal flat connecting rod 9, and wave filter is provided with shunt head towards one end of air intake.
As preferably, shunt head is ring arc structure.
As preferably, vertical connecting rod 8 is connected with horizontal flat connecting rod 9 is mutually vertical.
Because air-inlet sound eliminator 1 or air-discharge silencer 5 can realize the effect reducing noise, according to noisiness size, quantitative increase and decrease can be carried out in the basis meeting its function.In addition, the filter number of plies in silencing apparatus can increase and decrease according to blower sizes size, and sound-absorbing material can as required, and other has the material of sound absorption function and used in combination in proportion to adopt rock wool, alumina silicate etc., to tackle the noise of different frequency range.
the working principle of axial fan silencing apparatus is: utilize sound absorption, opacity technique principle, at the two ends of blower fan, the air-inlet sound eliminator 1 be made up of the wave filter of multiple ring-shaped cylindrical and air-discharge silencer 5 are installed, blower fan 3 runs the pressure caused makes air intake enter from air-inlet sound eliminator 1, form discharge air flow through front contraction chamber 2, blower fan 3, expansion cavity 4, air-discharge silencer 5, aftershrinkage chamber 6 and wind collecting unit 7 to discharge, distinguished and admirablely deliver to operational site by fresh; Simultaneously the noise that produces in running of blower fan 3 also absorb by the noise-reducing structure in above-mentioned air-inlet sound eliminator 1, front contraction chamber 2, expansion cavity 4, air-discharge silencer 5, aftershrinkage chamber 6, thus the outlet noise sound of wind collecting unit 7 is significantly reduced, make acoustic energy be converted into thermal energy consumption to fall, make body outwardly radiation mechanical noise reduce, realize effect of noise reduction.
the installation process of axial fan silencing apparatus is: contracting chamber before air-inlet sound eliminator 1 one end 2 and blower fan 3 are connected with screw, and the expansion cavity 4 of air-discharge silencer 5 one end is connected with the other end of blower fan 3, and silencer is just in and treats working state, as long as open blower fan 3, silencing apparatus just carries out work.
The above, be only specific embodiment of the utility model, but technical characteristics of the present utility model is not limited thereto, any those skilled in the art is in field of the present utility model, and the change done or modification are all encompassed among the scope of the claims of the present utility model.
Claims (3)
1. an axial fan silencing apparatus, comprises the air-inlet sound eliminator (1) be linked in sequence successively, front contraction chamber (2), expansion cavity (4), air-discharge silencer (5), aftershrinkage chamber (6) and wind collecting unit (7); Air-inlet sound eliminator (1) or air-discharge silencer (5) comprise metal shell and put wave filter in the inner, wave filter is provided with core filter (10), first layer wave filter (11) and second layer wave filter (12) from inside to outside successively, it is characterized in that, blower fan (3) is also provided with between contraction chamber (2) and expansion cavity (4) before described, described wave filter is connected with described metal shell by vertical connecting rod (8) and horizontal flat connecting rod (9), and wave filter is provided with shunt head towards one end of air intake.
2. axial fan silencing apparatus according to claim 1, is characterized in that, described shunt head is ring arc structure.
3. axial fan silencing apparatus according to claim 1 and 2, is characterized in that, described vertical connecting rod (8) is connected with horizontal flat connecting rod (9) is mutually vertical.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911118.XU CN205117831U (en) | 2015-11-16 | 2015-11-16 | Axial -flow fan silencer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520911118.XU CN205117831U (en) | 2015-11-16 | 2015-11-16 | Axial -flow fan silencer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205117831U true CN205117831U (en) | 2016-03-30 |
Family
ID=55573446
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520911118.XU Active CN205117831U (en) | 2015-11-16 | 2015-11-16 | Axial -flow fan silencer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205117831U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282050A (en) * | 2017-12-12 | 2018-07-13 | 安徽德科电气科技有限公司 | A kind of high frequency unsteady flow generator |
-
2015
- 2015-11-16 CN CN201520911118.XU patent/CN205117831U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108282050A (en) * | 2017-12-12 | 2018-07-13 | 安徽德科电气科技有限公司 | A kind of high frequency unsteady flow generator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |