CN205937224U - Impeller device and be equipped with this impeller device's axial -flow blower - Google Patents
Impeller device and be equipped with this impeller device's axial -flow blower Download PDFInfo
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- CN205937224U CN205937224U CN201620897331.4U CN201620897331U CN205937224U CN 205937224 U CN205937224 U CN 205937224U CN 201620897331 U CN201620897331 U CN 201620897331U CN 205937224 U CN205937224 U CN 205937224U
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Abstract
The utility model discloses an impeller device, including wheel hub and a plurality of blades of setting on wheel hub, the blade is crooked, just the blade height percentage at the some place on the blade is big more, and the setting angle of blade degree at this some place is more little. Compared with the prior art, the utility model discloses under the constantly changeable circumstances of gas, design embayment cranked shape with the blade, and does not design different setting angle of blade degree on the co -altitude percentage at the blade, can make gaseous can be along certain curve and slide in co -altitude department not, the resistance that has significantly reduced has improved efficiency, has reduced the energy consumption. The utility model discloses still provide simultaneously an axial -flow blower.
Description
Technical field
This utility model is related to propeller fan field, more particularly, to a kind of impeller unit and the axle being provided with this impeller unit
Flow blow.
Background technology
Propeller fan, as a kind of ventilation installation the most frequently used in the market, is widely used in civilian, industrial, agriculture
Industry, traffic every profession and trade.Existing propeller fan generally includes casing, the motor being arranged in casing and is fixed on motor shaft
Impeller unit.Refer to Fig. 1, it is the structural representation of existing impeller unit.Described impeller unit includes wheel hub 11 and consolidates
Be scheduled on the blade 12 on wheel hub 11, gas parallel to motor shaft enter casing in, and the pushing in blade 12 and make energy continuous
Increase, then the process through equipment such as follow-up diffuser pipes, by gas kinetic energy be converted to can practical application pressure energy.
Refer to Fig. 2, it is the projection of now vaned section shape, this Fig. 2 is using Fig. 1 as reference picture, to take turns
Hub 11 center as initial point O, vertically upward as X-axis, level to the right as Y-axis, vertical paper outwards as Z axis, will wherein
The section shape of one blade 12 projects formation in YOZ plane.From in Fig. 2, existing blade 12 shape is rule
Slab construction, if setting wheel hub 11 radius as r；With wheel hub 11 center as the center of circle, blade 12 free end end to this center of circle away from
From for R；When circle with wheel hub 11 center as the center of circle is intersected with blade 12, the radius that this circle is located is blade 12 height radius ri；
Then blade height score ratio is：(ri-r)/(R-r) * 100%；It is one end end of the shape described in Fig. 2 with the point intersecting with blade
Point as leading edge point A1, blade 12 point fixing with wheel hub 11 be the other end end points of the shape shown in Fig. 2 as trailing edge point A2,
Then leading edge point A1 and trailing edge point A2 wire definition are the string of a musical instrument, and this string of a musical instrument and angle formed by horizontal Y-axis are blade angle B, by
Figure understands the height percent corresponding blade angle degree all same that each point of blade 12 is located, and this blade 12 setting angle
Generally according to experience setting, and because blade 12 is fastened on wheel hub 11, wheel is fixed on certain blade 12 setting angle
Cannot change again after on hub 11.
Because impeller unit is in real work, its internal flow field change residing for blade is very big, in some works
Under condition, the design of existing single and changeless blade angle degree, it is easily caused impeller unit inefficiency, energy consumption big
Problem.
Utility model content
This utility model is to overcome the shortcoming of prior art and deficiency, provides the impeller dress that a kind of efficiency high, energy consumption are little
Put.
This utility model is achieved through the following technical solutions：A kind of impeller unit, including wheel hub and be arranged on wheel hub
On multiple blades；Described blade bending, and the blade height percentage ratio that the point on described blade is located is bigger, this point is located
Blade angle degree is less.
Compared to prior art, this utility model, in the case that gas is continually changing, blade design is become the shape of bending
Shape, and be designed to different blade angle degree on blade differing heights percentage ratio, can make the gas can at differing heights
Slide along certain curve, greatly reduce resistance, improve efficiency, reduce energy consumption.
Further, the blade height percentage ratio that the setting angle that on described blade, each point is located is located with this point meets：
Using blade height percentage ratio as abscissa unit, using blade angle degree as vertical coordinate unit, described blade each point is at this
Line in coordinate system is non-homogeneous B spline curve.
Further, the blade height percentage ratio that the setting angle that on described blade, each point is located is located with this point meets：
It is on 0% in blade height percentage ratio, blade angle degree is 38.93 ° ± 15 °；It is on 22.6% in blade height percentage ratio,
Blade angle degree is 35.62 ° ± 15 °；Blade height percentage ratio be 44.5% on, blade angle degree be 26.31 ° ±
15°；It is on 66.8% in blade height percentage ratio, blade angle degree is 20.24 ° ± 15 °；In blade height percentage ratio it is
On 77.9%, blade angle degree is 17.87 ° ± 15 °；It is that on 89.0%, blade angle degree is in blade height percentage ratio
16.35°±15°；It is on 100% in blade height percentage ratio, blade angle degree is 15.98 ° ± 10 °.
Further, described wheel hub includes wheel hub shroud and wheel hub hub disk；The periphery of described wheel hub shroud is uniformly provided with
One slot；Described wheel hub hub disk periphery is uniformly provided with the second slot；Described first slot and the second slot coupling form accommodating sky
Between.
Further, described blade includes petiole and is fixed on petiolar blade body；One end of described petiole is provided with can
It is fastened on the boss on the accommodation space of wheel hub, the other end is fixedly connected with blade body.
Compared to prior art, this utility model, in the case that gas is continually changing, blade design is become the shape of bending
Shape, and be designed to different blade angle degree on blade differing heights percentage ratio, can make the gas can at differing heights
Slide along certain curve, greatly reduce resistance, improve efficiency, reduce energy consumption.Further, by blade design
Ripe non-homogeneous B spline curve, can further improve efficiency.
The present invention also provides a kind of propeller fan simultaneously, the motor including casing, being arranged in casing and be fixed on electricity
Impeller unit on arbor；Described impeller unit includes wheel hub and the multiple blades being arranged on wheel hub；Described blade bending, and
The blade height percentage ratio that point on described blade is located is bigger, and the blade angle degree that this point is located is less.
Compared to prior art, this utility model, in the case that gas is continually changing, blade design is become the shape of bending
Shape, and be designed to different blade angle degree on blade differing heights percentage ratio, can make the gas can at differing heights
Slide along certain curve, greatly reduce resistance, improve efficiency, reduce energy consumption.
In order to more fully understand and implement, describe this utility model below in conjunction with the accompanying drawings in detail.
Brief description
Fig. 1 is the structural representation of existing impeller unit；
Fig. 2 is the projection of now vaned section shape；
Fig. 3 is the structural representation of impeller unit in the embodiment of the present application；
Fig. 4 is the side view of impeller unit in the embodiment of the present application；
Fig. 5 is the structural representation of the embodiment of the present application Leaf；
Fig. 6 is the projection of the embodiment of the present application Leaf section shape；
Fig. 7 is the coordinate diagram of the embodiment of the present application Leaf height percent and blade angle degree；
Fig. 8 is the embodiment of the present application Leaf setting angle meet second with blade height in the case of, gas flow with
Total head pressure, dynamic pressure pressure, the efficiency of impeller unit, the coordinate diagram of the power of impeller unit；
Fig. 9 is the embodiment of the present application Leaf setting angle meet the third with blade height in the case of, gas flow with
Total head pressure, dynamic pressure pressure, the efficiency of impeller unit, the coordinate diagram of the power of impeller unit；
Figure 10 is the structural representation of the embodiment of the present application axis flow blow.
Specific embodiment
Non-uniform rational B-spline (Non uniform rational B-spline, NURBS), is in computer graphicss
In conventional mathematical model, it can draw curve or curved surface according to control point and inner parameter.
Based on the These characteristics of non-uniform rational B-spline, blade angle degree of the present utility model and blade height percentage
Ratio meets non-uniform rational B-spline change, and then by blade curved design, specifically, refers to Fig. 3, and it is that the application is implemented
The structural representation of impeller unit in example.This impeller unit includes wheel hub 21 and the multiple blades 22 being uniformly arranged on wheel hub.
For adjusting the setting angle of blade 22, this utility model is improved to wheel hub 21, specifically, described wheel hub 21
Including wheel hub shroud 211, wheel hub hub disk 212 and bolt 213；The periphery of described wheel hub shroud 211 be uniformly provided with the first slot and
Nut counterbore 2111；Described wheel hub hub disk 212 periphery is uniformly provided with the second slot；Described first slot and the second slot coupling shape
Become accommodation space.One end of blade 22 is fixed in this accommodation space, and by blade 22 around this end rotational angle, turns to
After predetermined angular, it is fixed in nut counterbore by bolt 213, will be fixing to wheel hub shroud 211 and wheel hub hub disk 212, and then will
Blade 22 is fixing.
In the present embodiment, described wheel hub shroud 211 and wheel hub hub disk 212 are circular discs；And described wheel hub shroud 211 and wheel
Hub hub disk 212 center is provided with the axis hole 2112 for being connected with motor shaft.
For improving efficiency, this utility model is improved to blade 22.
Please refer to Fig. 4 and Fig. 5, Fig. 4 is the side view of impeller unit in the embodiment of the present application；Fig. 5 is that the application is real
Apply the structural representation of a Leaf.Described blade 22 includes petiole 221 and is fixed on petiolar blade body 222.
Described petiole 221 is a cylinder, and its one end is fastened on the boss 2211 on the accommodation space of wheel hub 21, the other end
It is fixedly connected with blade body 222.
For improving efficiency, this utility model mainly improves to blade body 222.
Refer to Fig. 6, it is the projection of the section shape of the blade in the embodiment of the present application, this Fig. 6 be using Fig. 3 as
Reference picture, using wheel hub 11 center as initial point O, vertically upward as X-axis, level to the right as Y-axis, vertical paper outside as
Z axis, the section shape of one of blade are projected in YOZ plane formation；In the diagram, if certain height of this blade
One end end points in the subpoint in YOZ plane is for Fig. 4 for the point is leading edge point C1, and blade 22 point fixing with wheel hub 21 is Fig. 4
As trailing edge point C2, then leading edge point C1 and trailing edge point C2 wire definition are the string of a musical instrument to the other end end points of shown shape, this string of a musical instrument
It is blade angle D with angle formed by horizontal Y-axis.
Refer to Fig. 7, it is the coordinate diagram of the embodiment of the present application Leaf height percent and blade angle degree, this figure
Middle abscissa is blade height percentage ratio X1, and unit is %；Vertical coordinate is blade angle degree X2, and unit is degree.The present embodiment
In, described blade body 222 bends, and the blade height percentage ratio that the point on blade body 222 is located is bigger, the blade that this point is located
Setting angle is less.Specifically, if using blade height percentage ratio as abscissa unit, using blade angle degree as vertical coordinate
Unit, line in this coordinate system for the described blade each point is non-homogeneous B spline curve.
In the present embodiment, as a example taking seven blade height percentage ratios, then the height that this seven points of described blade 22 are located
The blade angle degree that percentage ratio is located with this point meets：It is that on 0%, blade angle degree is in blade height percentage ratio
38.93°±15°；It is on 22.6% in blade height percentage ratio, blade angle degree is 35.62 ° ± 15 °；In blade height hundred
Point than on 44.5%, blade angle degree is 26.31 ° ± 15 °；It is on 66.8% in blade height percentage ratio, blade is installed
Angle is 20.24 ° ± 15 °；It is on 77.9% in blade height percentage ratio, blade angle degree is 17.87 ° ± 15 °；In blade
Height percent is on 89.0%, and blade angle degree is 16.35 ° ± 15 °；It is blade on 100% in blade height percentage ratio
Setting angle is 15.98 ° ± 10 °.
So that impeller radius are as 900mm as a example, height percent and this point that seven points of described blade 22 are located are located
Blade angle degree meets the first situation：It is on 0% in blade height percentage ratio, blade angle degree is 32.9 °；In blade
Height percent is on 22.6%, and blade angle degree is 26.6 °；It is on 44.5% in blade height percentage ratio, blade is installed
Angle is 20.3 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 14.2 °；In blade height percentage ratio it is
On 77.9%, blade angle degree is 11.8 °；It is on 89.0% in blade height percentage ratio, blade angle degree is 10.3 °；
It is on 100% in blade height percentage ratio, blade angle degree is 9.97 °.
So that impeller radius are as 900mm as a example, height percent and this point that seven points of described blade 22 are located are located
Blade angle degree or meet second situation：It is on 0% in blade height percentage ratio, blade angle degree is 37.9 °；?
Blade height percentage ratio is on 22.6%, and blade angle degree is 31.6 °；It is blade on 44.5% in blade height percentage ratio
Setting angle is 25.3 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 19.2 °；In blade height percentage
Than on 77.9%, blade angle degree is 16.8 °；It is that on 89.0%, blade angle degree is in blade height percentage ratio
15.3°；It is on 100% in blade height percentage ratio, blade angle degree is 14.9 °.
So that impeller radius are as 900mm as a example, height percent and this point that seven points of described blade 22 are located are located
Blade angle degree or meet the third situation：It is on 0% in blade height percentage ratio, blade angle degree is 42.9 °；?
Blade height percentage ratio is on 22.6%, and blade angle degree is 36.6 °；It is blade on 44.5% in blade height percentage ratio
Setting angle is 30.3 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 24.2 °；In blade height percentage
Than on 77.9%, blade angle degree is 21.8 °；It is that on 89.0%, blade angle degree is in blade height percentage ratio
20.3°；It is on 100% in blade height percentage ratio, blade angle degree is 19.9 °.
So that impeller radius are as 900mm as a example, height percent and this point that seven points of described blade 22 are located are located
Blade angle degree or the 4th kind of situation of satisfaction：It is on 0% in blade height percentage ratio, blade angle degree is 47.9 °；?
Blade height percentage ratio is on 22.6%, and blade angle degree is 41.6 °；It is blade on 44.5% in blade height percentage ratio
Setting angle is 35.3 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 29.2 °；In blade height percentage
Than on 77.9%, blade angle degree is 26.8 °；It is that on 89.0%, blade angle degree is in blade height percentage ratio
25.3°；It is on 100% in blade height percentage ratio, blade angle degree is 24.9 °.
So that impeller radius are as 900mm as a example, height percent and this point that seven points of described blade 22 are located are located
Blade angle degree or the 5th kind of situation of satisfaction：It is on 0% in blade height percentage ratio, blade angle degree is 52.9 °；?
Blade height percentage ratio is on 22.6%, and blade angle degree is 46.6 °；It is blade on 44.5% in blade height percentage ratio
Setting angle is 40.3 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 34.2 °；In blade height percentage
Than on 77.9%, blade angle degree is 31.8 °；It is that on 89.0%, blade angle degree is in blade height percentage ratio
30.3°；It is on 100% in blade height percentage ratio, blade angle degree is 29.9 °.
Please refer to Fig. 8 and Fig. 9, Fig. 8 is that the embodiment of the present application Leaf setting angle meets second with blade height
In the case of kind, gas flow and total head pressure, dynamic pressure pressure, the efficiency of impeller unit, the coordinate diagram of the power of impeller unit；Figure
9 is the embodiment of the present application Leaf setting angle meet the third with blade height in the case of, gas flow and total head pressure, dynamic
Pressure pressure, the efficiency of impeller unit, the coordinate diagram of the power of impeller unit, in Fig. 8 and Fig. 9, abscissa is gas flow Y1, single
Position is (x104m3/h)；From left to right vertical coordinate representative pressure Y2, efficiency Y3 and power Y4 respectively, unit is respectively Pa, %, Kw.
Can obtain from figure, in the range of flow is for 24000-34000m3/h, the work efficiency of impeller is equal for the impeller unit of the application
Exceed 70＆, and considerably beyond standard GB/T/T 19761-2009《Ventilator energy efficiency limit value and efficiency grade》Middle regulation
Energy Efficiency Standard, meet and have the characteristics that high efficiency, total head pressure is big, power that is consuming is little interior in a big way.
Refer to Figure 10, it is the structure chart of this utility model propeller fan.This utility model also provides a kind of simultaneously
Propeller fan, this propeller fan includes casing 31, the frame 32 being fixed in casing, motor 33 and being fixed in frame
It is fixed on the impeller unit 33 on motor shaft.Described impeller unit 33 is identical with above-mentioned structure, is not added with here repeating.
Compared to prior art, this utility model, in the case that gas is continually changing, blade design is become the shape of bending
Shape, and be designed to different blade angle degree on blade differing heights percentage ratio, can make the gas can at differing heights
Slide along certain curve, greatly reduce resistance, improve efficiency, reduce energy consumption.Further, by blade design
Ripe non-homogeneous B spline curve, can further improve efficiency.
This utility model is not limited to above-mentioned embodiment, if do not taken off to various changes of the present utility model or deformation
From spirit and scope of the present utility model, if these are changed and deformation belongs to claim of the present utility model and equivalent technologies
Within the scope of, then this utility model is also intended to comprise these changes and deforms.
Claims (9)
1. a kind of impeller unit, including wheel hub and the multiple blades being arranged on wheel hub；It is characterized in that, described blade bending,
And blade height percentage ratio that the point on described blade is located is bigger, the blade angle degree that this point is located is less.
2. impeller unit according to claim 1 it is characterised in that on described blade each point be located setting angle with should
The blade height percentage ratio that point is located meets：Using blade height percentage ratio as abscissa unit, using blade angle degree as
Vertical coordinate unit, line in this coordinate system for the described blade each point is non-homogeneous B spline curve.
3. impeller unit according to claim 2 it is characterised in that on described blade each point be located setting angle with should
The blade height percentage ratio that point is located meets：It is on 0% in blade height percentage ratio, blade angle degree is 38.93 ° ± 15 °；
It is on 22.6% in blade height percentage ratio, blade angle degree is 35.62 ° ± 15 °；It is 44.5% in blade height percentage ratio
On, blade angle degree is 26.31 ° ± 15 °；It is on 66.8% in blade height percentage ratio, blade angle degree is 20.24 °
±15°；It is on 77.9% in blade height percentage ratio, blade angle degree is 17.87 ° ± 15 °；In blade height percentage ratio it is
On 89.0%, blade angle degree is 16.35 ° ± 15 °；It is that on 100%, blade angle degree is in blade height percentage ratio
15.98°±10°.
4. impeller unit according to claim 1 is it is characterised in that described wheel hub includes wheel hub shroud and wheel hub hub disk；
The periphery of described wheel hub shroud is uniformly provided with the first slot；Described wheel hub hub disk periphery is uniformly provided with the second slot；Described first
Slot and the second slot coupling form accommodation space.
5. impeller unit according to claim 4 is it is characterised in that described blade includes petiole and is fixed on petiolar
Blade body；One end of described petiole is provided with the boss being fastened on the accommodation space of wheel hub, and the other end is fixing with blade body even
Connect.
6. impeller unit according to claim 5 is it is characterised in that described petiole is a cylinder.
7. impeller unit according to claim 4 is it is characterised in that described wheel hub shroud and wheel hub hub disk pass through bolt admittedly
Fixed.
8. a kind of propeller fan, the motor including casing, being arranged in casing and the impeller unit being fixed on motor shaft；Institute
State impeller unit and include wheel hub and the multiple blades being arranged on wheel hub；It is characterized in that, described blade bending, and each on blade
The increase of blade height percentage ratio that is located with this point of blade angle degree that point is located and reduce.
9. propeller fan according to claim 8 it is characterised in that on described blade each point be located setting angle with
The blade height percentage ratio that this point is located meets：Using blade height percentage ratio as abscissa unit, made with blade angle degree
For vertical coordinate unit, line in this coordinate system for the described blade each point is non-homogeneous B spline curve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897331.4U CN205937224U (en) | 2016-08-17 | 2016-08-17 | Impeller device and be equipped with this impeller device's axial -flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620897331.4U CN205937224U (en) | 2016-08-17 | 2016-08-17 | Impeller device and be equipped with this impeller device's axial -flow blower |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205937224U true CN205937224U (en) | 2017-02-08 |
Family
ID=57919268
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620897331.4U Active CN205937224U (en) | 2016-08-17 | 2016-08-17 | Impeller device and be equipped with this impeller device's axial -flow blower |
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| CN (1) | CN205937224U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414102A (en) * | 2021-05-13 | 2021-09-21 | 天津水泥工业设计研究院有限公司 | Double-rotor mechanism capable of adjusting grain size distribution of finished product and application thereof |
-
2016
- 2016-08-17 CN CN201620897331.4U patent/CN205937224U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113414102A (en) * | 2021-05-13 | 2021-09-21 | 天津水泥工业设计研究院有限公司 | Double-rotor mechanism capable of adjusting grain size distribution of finished product and application thereof |
| CN113414102B (en) * | 2021-05-13 | 2022-05-13 | 天津水泥工业设计研究院有限公司 | Double-rotor mechanism capable of adjusting grain size distribution of finished product and application thereof |
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Address after: 529200 Taishan, Jiangmen, Taicheng, South Hing Road, No. 15, No. Patentee after: Guangdong nedfon air system Limited by Share Ltd Address before: 529200 Taishan, Jiangmen, Taicheng, South Hing Road, No. 15, No. Patentee before: Guangzhou Lvdaofeng Indoor Air System Technology Co., Ltd. |