CN207247434U - Air conditioning fan - Google Patents
Air conditioning fan Download PDFInfo
- Publication number
- CN207247434U CN207247434U CN201721173992.3U CN201721173992U CN207247434U CN 207247434 U CN207247434 U CN 207247434U CN 201721173992 U CN201721173992 U CN 201721173992U CN 207247434 U CN207247434 U CN 207247434U
- Authority
- CN
- China
- Prior art keywords
- air
- trailing edge
- wet curtain
- blade
- wind turbine
- 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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- 238000004378 air conditioning Methods 0.000 title abstract description 4
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 38
- 241000883990 Flabellum Species 0.000 claims description 11
- 238000007789 sealing Methods 0.000 claims description 3
- 238000005057 refrigeration Methods 0.000 abstract description 6
- 230000007613 environmental effect Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract 1
- 238000001816 cooling Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005119 centrifugation Methods 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000000203 mixture Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Abstract
The utility model discloses an air conditioning fan, which comprises a shell, a water circulation system, a fan, a wet curtain and a control system, wherein an air outlet is arranged above the shell, an air inlet is arranged below the shell, the fan is axially arranged between the air outlet and the air inlet, the wet curtain is just opposite to the air inlet, the water circulation system is arranged at the bottom in the shell and is communicated with the wet curtain, the fan consists of a motor and a silent fan blade fixedly connected with a rotating shaft of the motor, a flow guide cover is also arranged between the air outlet and the fan, the fan conveys air from bottom to top when in operation, the air at the bottom is pumped by the fan after being cooled by the wet curtain from the air inlet and then is discharged out from the air outlet through the flow guide cover, because the silent fan blade and the flow guide cover are adopted, the noise is small in the air outlet process, the air flow is smooth, the triple requirements of large air, but also meets the requirements of environmental protection and refrigeration.
Description
Technical field
A kind of air cooler is the utility model is related to, particularly a kind of silent air-conditioning using axial flow blower air-supply is fanned.
Background technology
Air cooler is usually by housing, water circulation system, wind turbine, wet curtain（Wet curtain paper）And the five part group such as control system
Into, using water circulation system by water spray in wet curtain, water circulation system provide moistening cascade need moisture, work as fan operation
When on wet curtain both sides produce pressure difference, air is flowed through the wet curtain of porous moistening, the water on wet curtain bore area is under adiabatci condition
Evaporation, but the air for being flowed through wet curtain is taken away, while substantial amounts of heat has been taken away, so as to reduce the temperature of air itself.
In the prior art, the general face wet curtain of wind turbine（Wet curtain paper）, its air output is big and noise is big, and refrigeration scope is small, if
Further to expand refrigeration scope and then need to change powerful motor, the operating noise of wind turbine can more be difficult to endure at this time, no
Meet environmental requirement；Can solve the shortcomings that wind pressure is small if centrifugation cross flow fan is used instead, but its still have air output small and
The defects of noise is big, can not also obtain satisfied refrigeration effect.
The content of the invention
For overcome the deficiencies in the prior art, the utility model provide a kind of running noise is small, greater pressure can be produced and
Air quantity, the air cooler using axial flow blower.
Technical solution is used by the utility model solves its technical problem：
A kind of axial-flow type silent air-conditioning fan, including housing, water circulation system, wind turbine, wet curtain and control system, the shell
Be provided with air outlet above body, lower section is provided with air inlet, the wind turbine be axially mounted to the air outlet and air inlet it
Between, air inlet described in the wet curtain face, the water circulation system is installed on the bottom in the housing and connects with the wet curtain
Logical, the mute flabellum that the wind turbine is fixedly connected by motor and with the shaft of the motor is formed, the air outlet and the wind
Kuppe is also equipped between machine.
The front end of the kuppe is connected with the back-end sealing of the air outlet, and rear end, which is provided with, bends towards the outlet air
The following current portion of mouth, the smooth setting of inner surface of the kuppe.
The mute flabellum includes cylindrical bosses and is integrally connected to extend out on the wheel hub and from wheel hub
Blade, lateral margin that the blade is protruded by sequentially connected inwardly camber concave leading edge, outside camber, inwardly into arc
Concave first trailing edge of shape, the second trailing edge that outside camber protrudes and the 3rd trailing edge composition being recessed inwardly, the leading edge
Inner side, the inner side of the 3rd trailing edge are fixedly connected with the wheel hub, and the angle of inclination of the blade is between 40 degree to 60.
The aerofoil profile cuts before front end of the sharp structure including the leading edge is provided with continuously and cuts tip, the front end of the lateral margin
It is provided with continuous lateral incision tip, tip, second trailing edge are cut in the front end of first trailing edge after being provided with continuous first
Front end be provided with continuous second after cut tip, tip is cut in the front end of the 3rd trailing edge after being provided with the continuous 3rd.
The width of 3rd trailing edge is the first trailing edge, the 15%-25% of the sum of the second trailing edge width, the width of the leading edge
For the 115%-135% of the sum of the first trailing edge, the second trailing edge width.
The blade is provided with least two, and the adjacent blade in the vertical direction mutually staggers.
The air-inlet grille and Air Filter positioned at the wet curtain front end are also equipped with the air inlet.
The water circulation system includes water tank, water pump, and the water pump is connected by water pipe with the wet curtain, the water pump
Water inlet is connected with the water tank.
The beneficial effects of the utility model are：The utility model includes housing, water circulation system, wind turbine, wet curtain and control
System processed, is provided with air outlet above housing, and lower section is provided with air inlet, wind turbine be axially mounted to air outlet and air inlet it
Between, it is also equipped with kuppe between air outlet and wind turbine, wind turbine conveys air from bottom to top when operating, the air of bottom is from inlet air
Mouth is discharged after being pumped after wet curtain cools down by wind turbine by kuppe through air outlet, as a result of mute flabellum and kuppe,
So noise is small during outlet air, airflow smooth, while triple requirements of Wind Volume, big wind pressure, low noise have been taken into account, compared with
Existing air cooler expands cooling range, and meets environmental protection and refrigeration needs.
Brief description of the drawings
The utility model is further illustrated with reference to the accompanying drawings and examples.
Fig. 1 is the overall structure diagram of the utility model；
Fig. 2 is the structure partial decomposition diagram of the utility model；
Fig. 3 is the structure top view of mute flabellum；
Fig. 4 is the structure bottom view of mute flabellum；
Fig. 5 is the structural side view of mute flabellum.
Embodiment
Referring to figs. 1 to Fig. 5, a kind of air cooler, including housing 1, water circulation system 2, wind turbine, wet curtain 3 and control system
4, the top of the housing 1 is provided with air outlet 11, and lower section is provided with air inlet 12, and the wind turbine is axially mounted to the outlet air
Between mouth 11 and air inlet 12, air inlet 11 described in 3 face of wet curtain, the water circulation system 2 is installed in the housing 1
Bottom and connected with the wet curtain 3, the mute flabellum 6 that the wind turbine is fixedly connected by motor 5 and with the shaft of the motor 5
Form, kuppe 9 is also equipped between the air outlet 11 and the wind turbine, wind turbine conveys air, bottom from bottom to top when operating
The air in portion is discharged by kuppe 9 after being pumped from air inlet 12 after the cooling of wet curtain 3 by wind turbine through air outlet 11, due to using
Mute flabellum 6 and kuppe 9, so noise is small during outlet air, airflow smooth, while taken into account Wind Volume, strong wind
Pressure, triple requirements of low noise, more existing air cooler expand cooling range, and meet environmental protection and refrigeration needs.
In the present embodiment, the front end of the kuppe 9 is connected with the back-end sealing of the air outlet 11, and rear end is provided with
Bend towards the following current portion 91 of the air outlet 11, the smooth setting of inner surface of the kuppe 9, simple in structure, air flow
Will not hindered and ovfl, ensure outlet wind pressure, cold air can be sent to more remote.
The mute flabellum 6 includes cylindrical bosses 7 and is integrally connected to extend on the wheel hub 7 and from wheel hub 7
Blade 8 out, the lateral margin that the blade 8 is protruded by the sequentially connected inwardly concave leading edge 81 of camber, outside camber
82nd, concave first trailing edge 83 of inside camber, the second trailing edge 84 that outside camber protrudes and the 3rd trailing edge being recessed inwardly
85 are formed, and the inner side of the leading edge 81, the inner side of the 3rd trailing edge 85 are fixedly connected with the wheel hub 7, and the blade 8 inclines
Rake angle is between 40 degree to 60 degree, and the angle of inclination is as shown in d in Fig. 5, in the present embodiment, the first trailing edge, the second trailing edge
With the 3rd trailing edge in same level, the angle of inclination is by connecting the leading edge of blade and the first trailing edge, the second trailing edge and the
Line between three trailing edges measures, and when wheel hub 7 is horizontal positioned, this line intersects with horizontal plane.
In the present embodiment, the sweepforward angle of the leading edge 81 for 12 degree -18 spend, the angle of inclination as shown in e in Fig. 4,
Tip 811 is cut in the front end of the leading edge 81 before being provided with continuously, and the front end of the lateral margin 82 is provided with continuous lateral incision tip
821, tip 831 is cut in the front end of first trailing edge 83 after being provided with continuous first, and the front end of second trailing edge 84 is set
Cut tip 841 after having continuous second, tip 851 is cut in the front end of the 3rd trailing edge 85 after being provided with the continuous 3rd, described
Before cut to cut behind tip 811, lateral incision tip 821, first and cut tip 841 behind tip 831 and second and be respectively positioned on the upper of the blade 8
Side, cuts the downside that tip 851 is located at the blade 8 after the described 3rd, the air-flow positioned at root of blade cuts tip 851 after the 3rd
It is upper to cut the upside that tip 851 flows to the blade 8 after the 3rd later, improve the outlet wind pressure on blade；In addition it is above-mentioned
Various tips of cutting be aerofoil profile, the blade of this airfoil edge shape can reduce turbulent air flow, increase effective angle of attack, and subtract
The problem of few related with sound level.
In the present embodiment, the relation between the width between the first trailing edge, the second trailing edge, the 3rd trailing edge, leading edge according to
It is expressed as below, the width of the 3rd trailing edge 85 is as shown in b in Fig. 3, and the sum of the first trailing edge 83,84 width of the second trailing edge are such as a institutes in Fig. 3
Show, the width of leading edge 81 as shown in c in Fig. 3, the width of the 3rd trailing edge 85 is the first trailing edge 83,84 width of the second trailing edge it
The 15%-25% of sum, the adjacent wheel hub 7 of the 3rd trailing edge 85, so accelerates, raising is sent from the air-flow of the flowing of root of blade
Air quantity；The width of the leading edge 81 is the 115%-135% of the sum of the first trailing edge 83,84 width of the second trailing edge, this dramatically increases
Blade area so that this axial flow fan blade can be with the outlet wind pressure of the lift of bigger, higher quality flow and higher
Work.
Wind turbine sound power using the manufacture of this axial flow fan blade is horizontal（Unit is dBA）Determined by the following formula：
PWL=C+30*log10（TS/1000）+10*log10（HP）+Add
Wherein：
PWL=wind turbine sound power is horizontal（Unit is dBA）；
C=wind turbine baseline noise levels（Unit is dBA）, depending on it is by blade design；
TS=wind turbine tip speed（Unit is ft/ minutes）, it is equal to π * wind turbine RPM* wind turbine diameters；
HP=wind turbine shaft horsepower；
The additional noise of Add=caused by entering and installing effect；
Wind turbine tip speed and horsepower are the key factors for determining fan noise it can be seen from the equation, therefore, even
The wind turbine manufactured earlier can be by reducing wind turbine horsepower and/or tip speed and quiet to specific degrees.Compare however, working as
During the noise level of the two kinds of operation wind turbines to work with identical size and with same criterion under identical environment, determine by the wind
The overall noise that machine produces（That is PWL）Variable be " C ".
For narrow string blade earlier, " C " is usually 53-55dB, and for the general ultra low noise with curved leading edge
Wind turbine, " C " being capable of as low as 43-45dBA.Therefore, for identical fan speed and horsepower, by using general ultra low noise wind
Machine, can be than common wind turbine（The common wind turbine does not have with the concave leading edge of inside camber with identical size and blade）
Reduce until the noise of 10dBA.Including example embodiment blade（The blade has the leading edge of fairly linear sweepforward）Example it is real
Applying a wind turbine also has as low as 43-45dBA and even lower " C " value.Therefore, the wind turbine in the utility model is produced surpasses with common
The identical noise of low-noise fan, or even more low noise is produced, its " C " value is less than or equal to 43dBA.
The blade 8 is provided with least two, and adjacent 8 in the vertical direction of blade mutually staggers, i.e., in the axial direction
Projection will not overlap, in the present embodiment, the arrangement mode of blade is divided into two kinds, and one kind is at least two, the blade 8
Even number and mirror alignment each other two-by-two, another kind is the odd number of at least three, the blade 8 and decile arranges, multiple
8 in the vertical direction of the blade dislocation, particularly adjacent blades dislocation, i.e., projection in the axial direction will not overlap, such gas
Stream will not produce noise in the slit between adjacent blades, further improve muting function.
The air-inlet grille 121 and Air Filter 122 positioned at 3 front end of wet curtain are also equipped with the air inlet 12, is used for
Purify air.
The water circulation system 2 includes water tank 21, water pump 22, and the water pump 22 is connected by water pipe with the wet curtain 3, institute
The water inlet for stating water pump 22 is connected with the water tank 21, and the control system 4 is installed on the top of housing, it directly controls motor
Rotating speed, there are multiple gears, corresponding different rotating speed requirement；Air outlet is additionally provided with pendulum style grid at the same time, it is used to adjust
The wind direction of outlet.
Finally it should be noted that：The above descriptions are merely preferred embodiments of the present invention, is not limited to this
Utility model, although the utility model is described in detail with reference to the foregoing embodiments, for those skilled in the art
For, it can still modify the technical solution described in foregoing embodiments, or to which part technical characteristic
Equivalent substitution is carried out, where within the spirit and principles of the present invention, any modification, equivalent replacement, improvement and so on,
It should be included within the scope of protection of this utility model.
Claims (8)
1. a kind of air cooler, including housing（1）, water circulation system（2）, wind turbine, wet curtain（3）And control system（4）, its feature
It is the housing（1）Top be provided with air outlet（11）, lower section is provided with air inlet（12）, the wind turbine is axially mounted to
The air outlet（11）And air inlet（12）Between, the wet curtain（3）Air inlet described in face（12）, the water circulation system
（2）Installed in the housing（1）Interior bottom and with the wet curtain（3）Connection, the wind turbine is by motor（5）With with the motor
（5）The mute flabellum that is fixedly connected of shaft（6）Form, the air outlet（11）Kuppe is also equipped between the wind turbine
（9）.
2. air cooler according to claim 1, it is characterised in that the kuppe（9）Front end and the air outlet（11）
Back-end sealing connection, rear end, which is provided with, bends towards the air outlet（11）Following current portion（91）, the kuppe（9）It is interior
The smooth setting in surface.
3. air cooler according to claim 1, it is characterised in that the mute flabellum（6）Including cylindrical bosses（7）With
It is integrally connected to the wheel hub（7）It is upper and from wheel hub（7）In the blade that extends out（8）, the blade（8）By being sequentially connected
The concave leading edge of inside camber（81）, the lateral margin that protrudes of outside camber（82）, inside concave first trailing edge of camber
（83）, the second trailing edge for protruding of outside camber（84）With the 3rd trailing edge being recessed inwardly（85）Form, the leading edge（81）'s
Inner side, the 3rd trailing edge（85）Inner side and the wheel hub（7）It is fixedly connected, the blade（8）Angle of inclination at 40 degree
To between 60 degree.
4. air cooler according to claim 3, it is characterised in that the leading edge（81）Front end be provided with it is continuous before cut
Tip（811）, the lateral margin（82）Front end be provided with continuous lateral incision tip（821）, first trailing edge（83）Front end
Tip is cut after being provided with continuous first（831）, second trailing edge（84）Front end be provided with continuous second after cut tip
（841）, the 3rd trailing edge（85）Front end be provided with the continuous 3rd after cut tip（851）.
5. air cooler according to claim 3, it is characterised in that the 3rd trailing edge（85）Width be the first trailing edge
（83）, the second trailing edge（84）The 15%-25% of the sum of width, the leading edge（81）Width be the first trailing edge（83）, the second trailing edge
（84）The 115%-135% of the sum of width.
6. the air cooler according to claim 3 or 4, it is characterised in that the blade（8）At least two are provided with, adjacent institute
State blade（8）In the vertical direction mutually staggers.
7. according to any air coolers of claim 1-5, it is characterised in that the air inlet（12）On be also equipped with being located at
The wet curtain（3）The air-inlet grille of front end（121）And Air Filter（122）.
8. according to any air coolers of claim 1-5, it is characterised in that the water circulation system（2）Including water tank
（21）, water pump（22）, the water pump（22）Pass through water pipe and the wet curtain（3）Connection, the water pump（22）Water inlet and institute
State water tank（21）Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173992.3U CN207247434U (en) | 2017-09-12 | 2017-09-12 | Air conditioning fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721173992.3U CN207247434U (en) | 2017-09-12 | 2017-09-12 | Air conditioning fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207247434U true CN207247434U (en) | 2018-04-17 |
Family
ID=61888567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721173992.3U Expired - Fee Related CN207247434U (en) | 2017-09-12 | 2017-09-12 | Air conditioning fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207247434U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
| CN110081536A (en) * | 2018-11-28 | 2019-08-02 | 福建澳尤机电有限公司 | A kind of removable evaporative type air conditioner fan |
| CN112524706A (en) * | 2020-12-08 | 2021-03-19 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
-
2017
- 2017-09-12 CN CN201721173992.3U patent/CN207247434U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107436007A (en) * | 2017-09-12 | 2017-12-05 | 中山市壹比壹节能环保科技有限公司 | Axial-flow type mute air conditioning fan |
| CN110081536A (en) * | 2018-11-28 | 2019-08-02 | 福建澳尤机电有限公司 | A kind of removable evaporative type air conditioner fan |
| CN112524706A (en) * | 2020-12-08 | 2021-03-19 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
| CN112524706B (en) * | 2020-12-08 | 2021-12-03 | 四川斯普信信息技术有限公司 | Control system and method for noise reduction and precooling of air-cooled air conditioner external unit and application |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180417 Termination date: 20210912 |