CN219911301U - Noise reduction structure for air outlet of centrifugal fan - Google Patents
Noise reduction structure for air outlet of centrifugal fan Download PDFInfo
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- CN219911301U CN219911301U CN202321590309.1U CN202321590309U CN219911301U CN 219911301 U CN219911301 U CN 219911301U CN 202321590309 U CN202321590309 U CN 202321590309U CN 219911301 U CN219911301 U CN 219911301U
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- noise reduction
- air outlet
- centrifugal fan
- outlet pipe
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- 239000004744 fabric Substances 0.000 claims abstract description 13
- 238000007599 discharging Methods 0.000 claims abstract description 4
- 239000011148 porous material Substances 0.000 claims abstract description 4
- 230000030279 gene silencing Effects 0.000 claims description 6
- 229920000742 Cotton Polymers 0.000 claims description 3
- 238000012856 packing Methods 0.000 claims description 2
- 230000000903 blocking effect Effects 0.000 abstract description 2
- 238000001816 cooling Methods 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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Abstract
The utility model discloses a noise reduction structure of an air outlet of a centrifugal fan, which comprises a centrifugal fan main body and an air outlet pipe, wherein the air outlet pipe is arranged on the centrifugal fan main body and is used for discharging air flow generated by the operation of the centrifugal fan main body, and the top and the bottom of the inner wall of the air outlet pipe are fixedly connected with inclined plane blocks. According to the utility model, through the mutual matching of the centrifugal fan main body, the air outlet pipe, the inclined plane block, the soft gasket, the noise reduction bag, the cushion block, the noise reduction pad I, the flow blocking noise reduction component, the flow guide block and the noise reduction pad II, the noise reduction structure of the centrifugal fan air outlet is realized, so that strong wind entering the air outlet pipe directly impacts the noise reduction bag and the soft gasket ring, the wind impact can be weakened, the noise generated by the strong wind impact of the air outlet pipe is effectively avoided, the strong wind in the air outlet pipe can be guided by the flow guide block, the noise reduction pad I and the noise reduction pad II can also well reduce noise, the noise reduction pore plate can also reduce noise, the wind force guided by the guide plate can blow the cloth, the wind force is weakened again, and the noise is effectively reduced.
Description
Technical Field
The utility model relates to the technical field of noise reduction of centrifugal fans, in particular to a noise reduction structure of an air outlet of a centrifugal fan.
Background
The centrifugal fan is a machine which increases the pressure of gas and discharges the gas by means of input mechanical energy, and is a driven fluid machine. Centrifugal fans are widely used for ventilation, dust removal and cooling of factories, mines, tunnels, cooling towers, vehicles, ships and buildings; in the prior art, the air outlet of the centrifugal fan does not adopt effective measures to eliminate noise, the fast flowing strong wind directly impacts the air outlet pipe to generate larger noise, the strong wind directly discharges external air from the air outlet pipe, and the vibration of the pipeline and the alternate fast flow of the air also generate larger noise, so that the noise can seriously influence the working environment of staff.
Disclosure of Invention
The utility model aims to provide a noise reduction structure for an air outlet of a centrifugal fan, so as to solve the problems in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a centrifugal fan air outlet structure of making an uproar falls, includes centrifugal fan main part and goes out the tuber pipe, it installs in centrifugal fan main part to go out the tuber pipe, it is used for discharging the air current that centrifugal fan main part work produced to go out the tuber pipe, go out the equal fixedly connected with sloping block in top and bottom of tuber pipe inner wall, fixedly connected with cushion circle on the inner wall of tuber pipe, fixedly connected with bag of making an uproar falls on the inner wall of soft packing, go out the equal fixedly connected with cushion in top and bottom of tuber pipe inner wall, be connected with on the cushion and fall the pad one of making an uproar, fall on the pad one of making an uproar and be connected with the choked flow and fall the constitution of making an uproar.
Optionally, the air conditioner further comprises a flow guide block, wherein the flow guide block is arranged in the air outlet pipe, the front side and the rear side of the flow guide block are fixedly connected with the front side and the rear side of the inner wall of the air outlet pipe respectively, and a noise reduction pad II is arranged on the side face of the flow guide block.
Optionally, the soft cushion ring is specifically a sponge cushion ring.
Optionally, the noise reduction bag is specifically a soft noise reduction cloth bag, and two sides of the noise reduction cloth bag are in an open state.
Optionally, the first noise reduction pad and the second noise reduction pad are specifically noise reduction cotton pads.
Optionally, the choke noise reduction composition includes:
the silencing pore plate is fixedly connected to the cushion block;
the guide plate is fixedly connected to the silencing orifice plate;
cloth strips are fixedly connected to the guide plate.
Compared with the prior art, the utility model has the following beneficial effects:
according to the utility model, through the mutual matching of the centrifugal fan main body, the air outlet pipe, the inclined plane block, the soft gasket, the noise reduction bag, the cushion block, the noise reduction pad I, the flow blocking noise reduction component, the flow guide block and the noise reduction pad II, the noise reduction structure of the centrifugal fan air outlet is realized, so that strong wind entering the air outlet pipe directly impacts the noise reduction bag and the soft gasket ring, the wind impact can be weakened, the noise generated by the strong wind impact of the air outlet pipe is effectively avoided, the strong wind in the air outlet pipe can be guided by the flow guide block, the noise reduction pad I and the noise reduction pad II can also well reduce noise, the noise reduction pore plate can also reduce noise, the wind force guided by the guide plate can blow the cloth, the wind force is weakened again, and the noise is effectively reduced.
Drawings
FIG. 1 is a cross-sectional view of a front view of the structure of the present utility model;
FIG. 2 is a cross-sectional view of the front view of the air outlet pipe, the inclined plane block, the soft gasket, the noise reduction bag, the cushion block, the noise reduction pad I, the 8 choke and noise reduction component, the flow guiding block and the noise reduction pad II;
FIG. 3 is a cross-sectional view of a top view of a new air outlet pipe, a bevel block, a soft gasket, a cushion block, a first noise reduction pad and a second noise reduction pad;
FIG. 4 is a schematic diagram of the structure of the guide plate and the cloth strip top view of the present utility model;
fig. 5 is a schematic structural view of a noise reduction bag according to the present utility model.
In the figure: the centrifugal fan comprises a centrifugal fan body 1, an air outlet pipe 2, a slope block 3, a soft gasket 4, a noise reduction bag 5, a cushion block 6, a noise reduction pad I7, a noise reduction component 8, a noise reduction orifice plate 801, a guide plate 802, a cloth 803, a guide block 9 and a noise reduction pad II 10.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-5, a noise reduction structure for an air outlet of a centrifugal fan comprises a centrifugal fan main body 1 and an air outlet pipe 2, wherein the air outlet pipe 2 is arranged on the centrifugal fan main body 1, the air outlet pipe 2 is used for discharging air flow generated by the operation of the centrifugal fan main body 1, an inclined plane block 3 is fixedly connected to the top and the bottom of the inner wall of the air outlet pipe 2, a soft cushion ring 4 is fixedly connected to the inner wall of the air outlet pipe 2, the soft cushion ring 4 is a sponge gasket, a noise reduction bag 5 is fixedly connected to the inner wall of the soft cushion ring 4, the noise reduction bag 5 is a soft noise reduction cloth bag, two sides are in an open state, a cushion block 6 is fixedly connected to the top and the bottom of the inner wall of the air outlet pipe 2, a noise reduction pad 7 and a noise reduction pad 10 are respectively a noise reduction cotton pad, a choke noise reduction component 8 is connected to the noise reduction pad 7, and a choke noise reduction component 8 comprises:
the silencing orifice plate 801 is fixedly connected to the cushion block 6.
A guide plate 802 fixedly attached to the sound deadening orifice plate 801.
Cloth 803, fixed connection is on guide board 802, still includes guide block 9, sets up in the inside of play tuber pipe 2, and the front and back both sides of guide block 9 respectively with play tuber pipe 2 inner wall front and back both sides fixed connection, the side of guide block 9 is provided with and falls two 10 of pad of making an uproar.
When the wind-resistant noise-reducing air conditioner is used, strong wind enters the air outlet pipe 2, the inclined plane block 3 guides the wind direction, the strong wind directly impacts the air outlet pipe 5 and is weakened, impact force is transmitted to the soft cushion ring 4 and is weakened again, the arrangement of the guide block 9 and the noise-reducing pad II 10 can break the wind and guide the wind direction, the noise-reducing pad II 10 can buffer and weaken and absorb the wind force, the guided and shunted wind force can impact the noise-reducing pad I7, the noise-reducing pad I7 weakens the wind force again, the strong wind can not directly impact the air outlet pipe 2, noise is avoided, the noise-reducing pad I7 and the noise-reducing orifice plate 801 can also be used for silencing, the wind force is guided by the guide plate 802 and blows the cloth 803, the wind force can be weakened, finally, the noise-reducing bag 5 stretches out a certain length of the air outlet pipe 2, and the noise-reducing bag 5 is soft and shakes due to the wind force, the wind force can be weakened again, and the noise is avoided.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a centrifugal fan air outlet structure of making an uproar falls, includes centrifugal fan main part (1) and goes out tuber pipe (2), go out tuber pipe (2) and install on centrifugal fan main part (1), go out tuber pipe (2) and be used for discharging the air current that centrifugal fan main part (1) work produced, its characterized in that: the top and the equal fixedly connected with inclined plane piece (3) of bottom of play tuber pipe (2) inner wall, fixedly connected with cushion circle (4) on the inner wall of play tuber pipe (2), fixedly connected with bag (5) of making an uproar falls on the inner wall of soft packing circle (4), the equal fixedly connected with cushion (6) in top and the bottom of play tuber pipe (2) inner wall, be connected with on cushion (6) and fall pad one (7), fall and be connected with on the pad one (7) of making an uproar and fall and make an uproar and form (8).
2. The noise reduction structure for an air outlet of a centrifugal fan according to claim 1, wherein: the air conditioner further comprises a flow guide block (9) which is arranged in the air outlet pipe (2), the front side and the rear side of the flow guide block (9) are fixedly connected with the front side and the rear side of the inner wall of the air outlet pipe (2) respectively, and a noise reduction pad II (10) is arranged on the side face of the flow guide block (9).
3. The noise reduction structure for an air outlet of a centrifugal fan according to claim 2, wherein: the soft cushion ring (4) is specifically a sponge cushion ring.
4. A centrifugal fan air outlet noise reduction structure according to claim 3, wherein: the noise reduction bag (5) is specifically a soft noise reduction cloth bag, and two sides of the noise reduction cloth bag are in an open state.
5. The noise reduction structure for an air outlet of a centrifugal fan according to claim 4, wherein: the noise reduction pad I (7) and the noise reduction pad II (10) are specifically noise reduction cotton pads.
6. The noise reduction structure for an air outlet of a centrifugal fan according to claim 5, wherein: the choke and noise reduction component (8) comprises:
the silencing pore plate (801) is fixedly connected to the cushion block (6);
a guide plate (802) fixedly connected to the silencing orifice plate (801);
and the cloth strip (803) is fixedly connected to the guide plate (802).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321590309.1U CN219911301U (en) | 2023-06-20 | 2023-06-20 | Noise reduction structure for air outlet of centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321590309.1U CN219911301U (en) | 2023-06-20 | 2023-06-20 | Noise reduction structure for air outlet of centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219911301U true CN219911301U (en) | 2023-10-27 |
Family
ID=88438883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321590309.1U Active CN219911301U (en) | 2023-06-20 | 2023-06-20 | Noise reduction structure for air outlet of centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219911301U (en) |
-
2023
- 2023-06-20 CN CN202321590309.1U patent/CN219911301U/en active Active
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