CN207278585U - A kind of wind turbine noise reduction air guide structure and gas heater - Google Patents
A kind of wind turbine noise reduction air guide structure and gas heater Download PDFInfo
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- CN207278585U CN207278585U CN201720849779.3U CN201720849779U CN207278585U CN 207278585 U CN207278585 U CN 207278585U CN 201720849779 U CN201720849779 U CN 201720849779U CN 207278585 U CN207278585 U CN 207278585U
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- wind turbine
- noise reduction
- air guide
- guide structure
- turbine noise
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Abstract
The utility model discloses a kind of wind turbine noise reduction air guide structure and gas heater, the wind turbine noise reduction air guide structure includes roof, bottom wall and the side wall being connected between the roof and bottom wall, the center of the bottom wall is provided with air outlet, the circumferential direction of the side wall is provided with several air inlets, the air inlet is formed with wind blade, internal bend of the wind blade to the side wall.The gas heater of the utility model, wind turbine noise reduction air guide structure is increased by the entrance in Fan casing, and the air inlet of wind turbine noise reduction air guide structure is opened on its side wall, it can be achieved to prewhirl to carrying out rectification from air-flow from all directions, from the influence of machine interior spatial structure, reduce the possibility with neighbouring constructive interference, it can be mounted directly in various different model machines, this wind turbine noise reduction air guide structure it is versatile, water heater miniaturization need not be conducive to according to the different change structures in position of complete machine air intake vent.
Description
Technical field
It the utility model is related to a kind of wind turbine noise reduction air guide structure and gas heater.
Background technology
Present domestic gas-fired water heater, mainly based on forced-ventilated, noise is larger when forced-ventilated gas water heater works, main
Will be the reason is that the noise that wind turbine produces.Forced-ventilated gas water heater is generally provided accurate air quantity using DC fan and coordinates combustion
Burn, the high speed rotation of draught fan impeller drives air-flow flow at high speed, and the friction and resonance generation of high-speed flow and whole runner are larger
Noise.By taking conventional 12L gas heaters as an example, operating noise reaches 55dB under the conditions of the maximum (top) speed of 4150r/min, and same
Wind turbine list product noise is just more than 60dB under sample speed conditions（Environmental noise 25dB）.
The scheme having at present reduces noise by way of setting echo absorbed layer, but since air-flow can only pass through a side
To entrance, different type inner spaces is different, and gas flow is different, can not realize versatility.And silencing means volume compared with
Greatly, it is unfavorable for the miniaturization of water heater.
The content of the invention
The utility model is big in order to solve existing fan of gas water heater noise, and the technology of denoising structure poor universality is asked
Topic, it is proposed that a kind of gas heater, can solve the above problems.
In order to solve the above-mentioned technical problem, the utility model is achieved using following technical scheme：
A kind of wind turbine noise reduction air guide structure, including roof, bottom wall and the side wall being connected between the roof and bottom wall, institute
The center for stating bottom wall is provided with air outlet, and the circumferential direction of the side wall is provided with several air inlets, and the air inlet has wind guide vane
Piece, internal bend of the wind blade to the side wall.
Further, the wind blade is perpendicular to plane where the bottom wall.
Further, on the bottom wall, on the circumferential medial surface of the air outlet and on the inner surface of the roof
Sound-absorbing material is provided with least one of position.
Further, the sound-absorbing material is acoustical cotton.
Further, the air inlet is uniformly opened in the circumferential direction of the side wall, and the wind blade and its institute are right
The angle for the air inlet answered is 15 °~60 °.
Further, the side wall is cylinder-like structure.
Further, outwards fold is described to assemble on pawl formed with one or more assembling pawl for the lower end of the side wall
It is provided with screw hole.
A kind of gas heater, including Fan casing, further include such as preceding any one of them wind turbine noise reduction air guide structure, described
The side of Fan casing is provided with entrance, and the air outlet of the wind turbine noise reduction air guide structure matches admittedly with the entrance of the Fan casing
It is fixed.
Further, the exit of the Fan casing is provided with screens.
Compared with prior art, the advantages of the utility model and good effect is：The gas heater of the utility model, leads to
The entrance crossed in Fan casing increases wind turbine noise reduction air guide structure, and the air inlet of wind turbine noise reduction air guide structure is opened in its side wall
It is upper, it can be achieved that prewhirl to carrying out rectification from air-flow from all directions, from the influence of machine interior spatial structure, reduce with
The possibility of neighbouring constructive interference, can be mounted directly in various different model machines, this wind turbine noise reduction air guide structure it is general
Property it is strong, it is not necessary to change structure according to the position of complete machine air intake vent is different, be conducive to water heater miniaturization.
After the detailed description of the utility model embodiment is read in conjunction with the figure, other features and advantage of the utility model
It will become clearer.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is attached drawing needed in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
Some embodiments of invention, for those of ordinary skill in the art, without creative efforts, can be with
Other attached drawings are obtained according to these attached drawings.
Fig. 1 is a kind of example structure schematic diagram for the gas heater that the utility model is proposed；
Fig. 2 is the partial structural diagram of wind turbine noise reduction air guide structure in Fig. 1；
Fig. 3 is the cross sectional view of wind turbine noise reduction air guide structure in Fig. 2.
Embodiment
Below in conjunction with the attached drawing in the embodiment of the present invention, the technical solution in the embodiment of the present invention is carried out clear, complete
Site preparation describes, it is clear that described embodiment is only part of the embodiment of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, those of ordinary skill in the art are obtained every other without making creative work
Embodiment, belongs to the scope of protection of the invention.
It is an object of the invention to overcome some electric appliances with wind turbine at present（Such as gas heater, smoke exhaust ventilator）'s
Fan noise is big, and volume existing for corresponding denoising device is big, the technical problem of poor universality, it is proposed that a kind of wind turbine noise reduction is led
Wind structure, can solve the above problems, and will illustrate below by taking the gas heater with wind turbine noise reduction air guide structure as an example
Illustrate, the construction and principle of wind turbine noise reduction air guide structure is described in detail.
Embodiment one, the present embodiment propose a kind of gas heater, as shown in Figure 1, the wind turbine portion of the gas heater
Dividing includes Fan casing 1, and the side of Fan casing 1 is provided with entrance（Not shown in angle cause chart）, inlet is installed with wind turbine
Noise reduction air guide structure 2, as shown in Figure 1 and Figure 2, wind turbine noise reduction air guide structure 2 include roof 21, bottom wall 22 and are connected to roof 21
Side wall 23 between bottom wall 22, the center of bottom wall 22 are provided with air outlet 27, and the circumferential direction of side wall 23 is provided with several air inlets 24,
Air inlet is formed with wind blade 25, internal bend of the wind blade 25 to side wall 23.During this gas water heater working, wind turbine
Blade rotates in Fan casing 1 produces negative pressure, and extraneous air enters wind turbine by the air inlet 24 of wind turbine noise reduction air guide structure 2 and drops
Make an uproar the inside of air guide structure 2, the entrance then through Fan casing 1 enters wind turbine, by by the air inlet of wind turbine noise reduction air guide structure 2
It is opened on its side wall, and by setting the wind blade bent to inside sidewalls, as shown in figure 3, wind is from wind turbine noise reduction wind-guiding
The circumferential of structure 2 enters, it can be achieved that prewhirling to carrying out rectification from air-flow from all directions, from machine interior spatial structure
Influence, reduce the possibility with neighbouring constructive interference, moreover, 2 main body of this wind turbine noise reduction air guide structure is one end closing, in addition one
End opens up the column structure of air outlet, and versatility is high, and for the wind turbine of different model, the shape of this structure need not be done adaptable
Change, can be mounted directly in various different model machines, be conducive to water heater miniaturization.
In order to reduce the weight of wind turbine noise reduction air guide structure 2, improve its portability, preferably wind turbine noise reduction air guide structure 2
Main body is formed for plastic injection, is being entered wind turbine noise reduction air guide structure 2 in order to further reduce air and is being entered wind turbine through it
When the scattering echo noise that produces of air-flow and structural impact, preferably on the bottom wall 22 of wind turbine noise reduction air guide structure, air outlet 27
Sound-absorbing material is provided with least one of position on circumferential medial surface and on the inner surface of roof 21.It is preferred that in upper rheme
The place of putting is both provided with attractive material, and the effect for absorbing scattering echo is best.
Wherein, sound-absorbing material can play sound-absorbing using acoustical cotton, sound insulation damping sheet etc., the material of resistance sound is realized.
As shown in Figure 2 and Figure 3, the fixation of the wind blade 25 of preferably all air inlets 24 and the air inlet 24 corresponding to it
Position, and fixed angle are consistent, and form pivoting leaf sheet, after promoting wind to assemble after sucking according to fixed angle rotation
Into wind turbine so that the air-flow into fan blade is more uniform, and angle is more consistent, and prewhirls and reduce air-flow to blade
Impact, reduces the relative velocity of air-flow and blade, so as to reduce the generation being vortexed between blade and come off.The generation of vortex and de-
Fall is one of important sources of fan noise.
Wind blade 25 ensure that wind enters from the circumferential direction of wind turbine noise reduction air guide structure 2 perpendicular to 22 place plane of bottom wall,
And then it can prewhirl to carrying out rectification from air-flow from all directions.
As shown in figure 3, air inlet 24 is uniformly opened in the circumferential direction of side wall 21, wind blade 25 with its corresponding into
The angle in air portFor 15 °~60 °.Angle, length and the quantity of wind blade 25 are suitably selected according to rotating speed and resistance.
The opposite side of Fan casing 1 has issued outlet 10, and screens is provided with outlet 10（Do not show in angle cause chart
Go out）, the sinuous flow of outlet to the further rectification of wind into combustion chamber, can be reduced, the work for further reducing noise can be played
With.
In order to maximumlly reduce shock when air-flow enters wind turbine noise reduction air guide structure 2 with its side wall, preferably side wall 23
For the cylinder-like structure with radian.
As shown in Fig. 2, outwards fold formed with one or more assembling pawl 26, is assembled and opened on pawl 26 for the lower end of side wall 23
There is screw hole, wind turbine noise reduction air guide structure 2 is fixedly connected by screw through the screw hole with Fan casing 1, when with multiple dresses
During with pawl 26, preferred its uniformly distributed circumferential direction in side wall 23 improves fixed stably solidity.
Application of the wind turbine noise reduction air guide structure 2 in gas heater is only a kind of concrete application, certainly, in the present embodiment
Wind turbine noise reduction air guide structure be not limited only to apply in gas heater, can be applied in such as smoke exhaust ventilator household electrical appliances.
Certainly, the above description is not intended to limit the present invention, and the utility model is also not limited to the example above,
The variations, modifications, additions or substitutions that those skilled in the art are made in the essential scope of the utility model,
It should also belong to the protection scope of the utility model.
Claims (9)
- A kind of 1. wind turbine noise reduction air guide structure, it is characterised in that：Including roof, bottom wall and it is connected between the roof and bottom wall Side wall, the center of the bottom wall is provided with air outlet, and the circumferential direction of the side wall is provided with several air inlets, the air inlet tool There are wind blade, internal bend of the wind blade to the side wall.
- 2. wind turbine noise reduction air guide structure according to claim 1, it is characterised in that：The wind blade is perpendicular to the bottom Plane where wall.
- 3. wind turbine noise reduction air guide structure according to claim 1, it is characterised in that：On the bottom wall, the air outlet Sound-absorbing material is provided with least one of position on circumferential medial surface and on the inner surface of the roof.
- 4. wind turbine noise reduction air guide structure according to claim 3, it is characterised in that：The sound-absorbing material is acoustical cotton.
- 5. wind turbine noise reduction air guide structure according to claim 1, it is characterised in that：The air inlet is uniformly opened in institute State in the circumferential direction of side wall, the angle of the wind blade and the air inlet corresponding to it is 15 °~60 °.
- 6. according to claim 1-5 any one of them wind turbine noise reduction air guide structures, it is characterised in that：The side wall is cylindrical shape Structure.
- 7. according to claim 1-5 any one of them wind turbine noise reduction air guide structures, it is characterised in that：The lower end of the side wall to Outer fold is provided with screw hole formed with one or more assembling pawl, described assemble on pawl.
- 8. a kind of gas heater, including Fan casing, it is characterised in that：Dropped including claim 1-7 any one of them wind turbine Make an uproar air guide structure, the side of the Fan casing is provided with entrance, air outlet and the Fan casing of the wind turbine noise reduction air guide structure Entrance match fixation.
- 9. gas heater according to claim 8, it is characterised in that：The exit of the Fan casing is provided with rectification Net.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720849779.3U CN207278585U (en) | 2017-07-13 | 2017-07-13 | A kind of wind turbine noise reduction air guide structure and gas heater |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720849779.3U CN207278585U (en) | 2017-07-13 | 2017-07-13 | A kind of wind turbine noise reduction air guide structure and gas heater |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207278585U true CN207278585U (en) | 2018-04-27 |
Family
ID=61986069
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720849779.3U Active CN207278585U (en) | 2017-07-13 | 2017-07-13 | A kind of wind turbine noise reduction air guide structure and gas heater |
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| Country | Link |
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| CN (1) | CN207278585U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096663A (en) * | 2020-09-25 | 2020-12-18 | 南京风机厂有限公司 | Noise reduction device for air inlet of fan |
| CN116357622A (en) * | 2023-02-14 | 2023-06-30 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
-
2017
- 2017-07-13 CN CN201720849779.3U patent/CN207278585U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112096663A (en) * | 2020-09-25 | 2020-12-18 | 南京风机厂有限公司 | Noise reduction device for air inlet of fan |
| CN112096663B (en) * | 2020-09-25 | 2022-07-12 | 南京风机厂有限公司 | Noise reduction device for air inlet of fan |
| CN116357622A (en) * | 2023-02-14 | 2023-06-30 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
| CN116357622B (en) * | 2023-02-14 | 2023-11-03 | 广东合胜热能科技有限公司 | Noise reduction system of fan of mute water heater |
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