CN207795680U - A kind of cooling tower special glass steel shaft axial flow fan blade and axial flow blower - Google Patents
A kind of cooling tower special glass steel shaft axial flow fan blade and axial flow blower Download PDFInfo
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- CN207795680U CN207795680U CN201721929260.2U CN201721929260U CN207795680U CN 207795680 U CN207795680 U CN 207795680U CN 201721929260 U CN201721929260 U CN 201721929260U CN 207795680 U CN207795680 U CN 207795680U
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Abstract
The utility model discloses a kind of cooling tower special glass steel shaft axial flow fan blades, including blade body, the left end of blade body is connected with mounting portion, bearing is provided on mounting portion, blade body is along top edge from its left end up to right end is equipped with upper operation portion, blade body along lower edge from its left end up to right end be equipped with lower operation portion, upper operation portion is identical from left end to right end radial width, and lower operation portion is identical from left end to right end radial width.The utility model also provides a kind of cooling tower special glass steel shaft flow fan.The cooling tower special glass steel shaft axial flow fan blade of the utility model, the blade is according to the requirement of blower fan of cooling tower low speed operating condition feature, the negative pressuren zone of wind turbine center is significantly cut down, the dynamic pressure for significantly reducing the air stream of air duct air outlet reaches efficient, low speed, energy-efficient purpose.
Description
Technical field
The utility model is related to a kind of flow fan component more particularly to a kind of cooling tower special glass steel shaft axial flow fan blades
And axial flow blower.
Background technology
Axial flow blower, purposes is very extensive, and axial fan fixed position simultaneously makes air move, and is exactly same with the axis of fan blade
The air-flow in direction, such as electric fan, outdoor machine of air-conditioner fan are exactly that axis stream mode runs wind turbine.Axial fan is generally used for flow and wants
Ask higher and the lower occasion of pressure requirements, plain edition axial flow blower can be used for general factory, warehouse, office, premises etc.
The ventilation in place, it can also be used to air-cooler (aerial cooler), evaporator, condenser, spray drop, etc., also have mining
Axial flow blower, axial flow blower are mainly made of draught fan impeller and casing, simple in structure but data demand is very high.Axial-flow type wind
The operation principle of machine is：When the impeller is rotated, gas is made from air inlet axially into impeller by the pushing of impeller blade
The energy of gas increases, and then flows into guide vane, and guide vane becomes axial flowing by air-flow is deflected, while introducing gas into diffuser pipe,
Gas kinetic energy is further converted into pressure energy, is finally introducing working line, the working method and aircraft of axial fan blade
Wing it is similar, still, the latter is lift to be acted on wing to and supported the weight of aircraft upwards, and axial fan is then solid
Positioning sets and air is made to move.
But existing axial flow blower has the following defects：
The blade diameter of existing axial flow fan vane wheel is very big, and blade is also heavy, and noise is higher when in use, and not only energy consumption is gone back
Sound source is caused to pollute.
Utility model content
For overcome the deficiencies in the prior art, one of the purpose of this utility model is to provide a kind of cooling tower special glass
Steel shaft axial flow fan blade, the blade have significantly been cut down in wind turbine according to the requirement of blower fan of cooling tower low speed operating condition feature
The negative pressuren zone of heart position significantly reduces the dynamic pressure of the air stream of air duct air outlet, reaches efficient, low speed, energy-efficient purpose.
The two of the purpose of this utility model are to provide a kind of cooling tower special glass steel shaft flow fan, axial flow blower tool
The blade for having supercritical properties, low-speed characteristic excellent runs low noise, and energy-saving effect is notable, is especially suitable for school, office, doctor
Institute etc. under the exclusive environment of noise to using.
One of the purpose of this utility model adopts the following technical scheme that realization：
A kind of cooling tower special glass steel shaft axial flow fan blade, including blade body, the left end connection of the blade body
Have mounting portion, be provided with bearing on mounting portion, the blade body along top edge from its left end up to right end is equipped with upper operation portion,
The blade body is along lower edge from its left end up to right end is equipped with lower operation portion, upper operation portion radial direction from left end to right end
Of same size, the lower operation portion is identical from left end to right end radial width.
Further, the upper operation portion is identical as the radial width in lower operation portion.
Further, the blade body is in turn divided into first-class wind area, second wind area, from its left end to right end
The areas San Liufeng, the areas Si Liufeng, the areas Wu Liufeng, the areas Liu Liufeng, the areas Qi Liufeng, the areas Ba Liufeng, the areas Jiu Liufeng,
The areas Shi Liufeng and the tenth first-class wind area.
Further, the first-class wind area, second wind area, the areas third Liu Feng, the areas Si Liufeng, the areas Wu Liufeng,
The first-class wind of the areas Liu Liufeng, the areas Qi Liufeng, the areas Ba Liufeng, the areas Jiu Liufeng, the areas Shi Liufeng and the tenth area all has phase
Same axial width.
Further, the radial width at the first-class both ends Feng Qu is D, and the radial width at the tenth one stream both ends Feng Qu is
D, D/d=1.5-2.
Further, the leaf top surface of the blade body sets multiple water conservancy diversion blind holes, and multiple water conservancy diversion blind holes are uniform along leaf top surface
Arrangement.
Further, the section of the water conservancy diversion blind hole is ellipse, round or hexagon.
The two of the purpose of this utility model adopt the following technical scheme that realization：
A kind of cooling tower special glass steel shaft flow fan, including casing and impeller, the impeller are equipped at least three
The axial-flow fan blade stated.
Compared with prior art, the beneficial effects of the utility model are：
(1) the cooling tower special glass steel shaft axial flow fan blade of the utility model, the blade is according to blower fan of cooling tower low speed
The requirement of operating condition feature has widened downwards blade by carrying out special improvement to the matched curve of root of blade section
High efficient district is run, and has significantly cut down the negative pressuren zone of wind turbine center, significantly reduces the air stream of air duct air outlet
Dynamic pressure, reach efficiently, low speed, energy-efficient purpose；
(2) the cooling tower special glass steel shaft flow fan of the utility model, the axial flow blower have supercritical properties, low speed
The blade of characteristic good runs low noise, and energy-saving effect is notable, is especially suitable for school, office, hospital etc. and limits strictly noise
In the environment of use.
Description of the drawings
Fig. 1 is the structural scheme of mechanism of the axial-flow fan blade of embodiment 1；
Fig. 2 is the schematical top view of the axial-flow fan blade of embodiment 1；
Fig. 3 is the axial-flow fan blade section stacking chart of embodiment 1.
In figure：1, blade body；101, upper operation portion；102, lower operation portion；103, water conservancy diversion blind hole；2, mounting portion；21, axis
It holds；3, first-class wind area；4, second wind area；5, the areas third Liu Feng；6, the areas Si Liufeng；7, the areas Wu Liufeng；8, the 6th stream
Wind area；9, the areas Qi Liufeng；10, the areas Ba Liufeng；11, the areas Jiu Liufeng；12, the areas Shi Liufeng；13, the tenth first-class wind area；
D, the radial width at the first-class both ends Feng Qu；D, the radial width at the tenth one stream both ends Feng Qu.
Specific implementation mode
In the following, in conjunction with attached drawing and specific implementation mode, the utility model is described further, it should be noted that
Under the premise of not colliding, it can be formed in any combination between various embodiments described below or between each technical characteristic new
Embodiment.
Embodiment 1：
Referring to Fig.1-3, a kind of cooling tower special glass steel shaft axial flow fan blade, including blade body 1.
The left end of blade body 1 is connected with mounting portion 2, and bearing 21 is provided on mounting portion 2.Impeller includes rack and leaf
Blade body 1 can be mounted in the rack of impeller by piece, mounting portion 2, the bearing 21 on blade and the bearing in impeller housing
21 adaptations, by the way that bearing 21 to be mounted on 21, bearing, blade can be securely fixed in impeller housing.
Blade body 1 along top edge from its left end up to right end be equipped with upper operation portion 101, blade body 1 along lower edge from
Its left end is until right end is equipped with lower operation portion 102, and upper operation portion 101 is identical from left end to right end radial width, lower operation portion 102
It is identical from left end to right end radial width.Upper operation portion 101 is identical as the radial width in lower operation portion 102.
Blade body 1 from its left end to right end be in turn divided into first-class wind area 3, second wind area 4, the areas third Liu Feng 5,
The areas Si Liufeng 6, the areas Wu Liufeng 7, the areas Liu Liufeng 8, the areas Qi Liufeng 9, the areas Ba Liufeng 10, the areas Jiu Liufeng 11,
The areas Shi Liufeng 12 and the tenth first-class wind area 13.
Wind is flowed in first-class wind area 3, second wind area 4, the areas third Liu Feng 5, the areas Si Liufeng 6, the areas Wu Liufeng the 7, the 6th
The first-class wind of area 8, the areas Qi Liufeng 9, the areas Ba Liufeng 10, the areas Jiu Liufeng 11, the areas Shi Liufeng 12 and the tenth area 13 all has
Identical axial width.
The radial width at first-class 3 both ends of wind area is D, and the radial width at 13 both ends of the tenth first-class wind area is d, D/d=
1.5-2。
The leaf top surface of blade body 1 sets multiple water conservancy diversion blind holes 103, and multiple water conservancy diversion blind holes 103 are uniformly arranged along leaf top surface, led
The section for flowing blind hole 103 is ellipse, round or hexagon, and the present embodiment is ellipse.The setting of water conservancy diversion blind hole 103 not only has
The generation of effect control Secondary Flow, moreover it is possible to leaf top vortex be effectively prevent to mix present generation with mainstream medium.
Arrow indicates axial-flow fan blade direction of rotation, the cooling tower special glass steel shaft flow fan leaf of the utility model
Piece, the blade pass through the upper operation portion 101 of setting blade body 1 according to the requirement of blower fan of cooling tower low speed operating condition feature
Identical from left end to right end radial width, lower operation portion 102 is from left end to right end radial width, and by first-class wind area 3, second
Wind is flowed in the areas Liu Feng 4, the areas third Liu Feng 5, the areas Si Liufeng 6, the areas Wu Liufeng 7, the areas Liu Liufeng 8, the areas Qi Liufeng the 9, the 8th
The axial width in the first-class wind of area 10, the areas Jiu Liufeng 11, the areas Shi Liufeng 12 and the tenth area 13 is fitted curve, first-class wind
The radial width at 3 both ends of area is 1.5 to 2 times of the radial width at 13 both ends of the tenth first-class wind area, and setting in this way is widened downwards
The operation high efficient district of blade, has significantly cut down the negative pressuren zone of wind turbine center, significantly reduces the sky of air duct air outlet
The dynamic pressure of air-flow reaches efficient, low speed, energy-efficient purpose；Under low mach, low reynolds number, maximum lift coefficient is up to 1.6
Left and right, lift resistance ratio is up to 100 or more, and the pressure distribution of upper lower aerofoil is gentle, and stalling incidence is big, and rear Disengagement zone is small, normal use
In the case of, for total pressure efficiency between 80%~90%, efficiency envelope is gentle, even if actual condition off-design point, wind turbine is still
It can so be run in high efficient district.
Embodiment 2：
A kind of cooling tower special glass steel shaft flow fan, including casing and impeller, it is above-mentioned that impeller is equipped at least three
Axial-flow fan blade.
The cooling tower special glass steel shaft flow fan of the utility model, the axial flow blower have supercritical properties, low speed special
Property excellent blade, run low noise, energy-saving effect is notable, and it is exclusive to noise to be especially suitable for school, office, hospital etc.
It is used under environment.
The above embodiment is only preferred embodiments of the present invention, cannot be protected with this to limit the utility model
Range, the variation of any unsubstantiality that those skilled in the art is done on the basis of the utility model and replacing belongs to
In the utility model range claimed.
Claims (8)
1. a kind of cooling tower special glass steel shaft axial flow fan blade, which is characterized in that including blade body, the blade body
Left end is connected with mounting portion, bearing is provided on mounting portion, the blade body is along top edge from its left end up to right end is equipped with
Upper operation portion, the blade body along lower edge from its left end up to right end is equipped with lower operation portion, the upper operation portion is from left end
Identical to right end radial width, the lower operation portion is identical from left end to right end radial width.
2. axial-flow fan blade as described in claim 1, which is characterized in that the upper operation portion is radially-wide with lower operation portion
It spends identical.
3. axial-flow fan blade as described in claim 1, which is characterized in that the blade body from its left end to right end successively
It is divided into first-class wind area, second wind area, the areas third Liu Feng, the areas Si Liufeng, the areas Wu Liufeng, the areas Liu Liufeng, the 7th
The first-class wind of the areas Liu Feng, the areas Ba Liufeng, the areas Jiu Liufeng, the areas Shi Liufeng and the tenth area.
4. axial-flow fan blade as claimed in claim 3, which is characterized in that the first-class wind area, second wind area, third
The areas Liu Feng, the areas Si Liufeng, the areas Wu Liufeng, the areas Liu Liufeng, the areas Qi Liufeng, the areas Ba Liufeng, the areas Jiu Liufeng, the tenth
The areas Liu Feng and the tenth first-class wind area all have identical axial width.
5. axial-flow fan blade as claimed in claim 3, which is characterized in that the radial width at the first-class both ends Feng Qu is
The radial width of D, the tenth one stream both ends Feng Qu are d, D/d=1.5-2.
6. axial-flow fan blade as described in claim 1, which is characterized in that the leaf top surface of the blade body sets multiple water conservancy diversion
Blind hole, multiple water conservancy diversion blind holes are uniformly arranged along leaf top surface.
7. axial-flow fan blade as claimed in claim 6, which is characterized in that the section of the water conservancy diversion blind hole is ellipse, circle
Shape or hexagon.
8. a kind of cooling tower special glass steel shaft flow fan, including casing and impeller, which is characterized in that the impeller is equipped with extremely
Few three such as claim 1-7 any one of them axial-flow fan blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929260.2U CN207795680U (en) | 2017-12-30 | 2017-12-30 | A kind of cooling tower special glass steel shaft axial flow fan blade and axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721929260.2U CN207795680U (en) | 2017-12-30 | 2017-12-30 | A kind of cooling tower special glass steel shaft axial flow fan blade and axial flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207795680U true CN207795680U (en) | 2018-08-31 |
Family
ID=63277381
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721929260.2U Active CN207795680U (en) | 2017-12-30 | 2017-12-30 | A kind of cooling tower special glass steel shaft axial flow fan blade and axial flow blower |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207795680U (en) |
-
2017
- 2017-12-30 CN CN201721929260.2U patent/CN207795680U/en active Active
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| GR01 | Patent grant | ||
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Address after: No.8 Huoda 7th Road, Nahuo Industrial Zone, Yangdong District, Yangjiang City, Guangdong Province, 529931 Patentee after: Guangdong Tianli Cooling Tower Co.,Ltd. Address before: No.8 Huoda 7th Road, Nahuo Industrial Zone, Yangdong District, Yangjiang City, Guangdong Province, 529931 Patentee before: YANGJIANG T-LEAD COOLING TOWER CO.,LTD. |