CN206708092U - A kind of axial-flow type is dynamic to adjust fan blade - Google Patents
A kind of axial-flow type is dynamic to adjust fan blade Download PDFInfo
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- CN206708092U CN206708092U CN201720292256.3U CN201720292256U CN206708092U CN 206708092 U CN206708092 U CN 206708092U CN 201720292256 U CN201720292256 U CN 201720292256U CN 206708092 U CN206708092 U CN 206708092U
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Abstract
The utility model belongs to large fan field, and in particular to a kind of blade used in the dynamic tune blower fan of axial-flow type.This kind of axial-flow type is dynamic to adjust fan blade, it is characterised in that blade is divided into seven sections along in short transverse, and this seven sections have different established angles, thickness and chord length.The utility model has the advantages that blade when cuttability, hub ratio are more than 0.59 after cutting still has good performance, can zoom in or out each sectional dimension according to different axial fan hub ratios.
Description
Technical field
Axial flow blower field is the utility model is related to, more particularly to a kind of hub ratio is more than or equal to 0.59 axial flow blower leaf
Piece.
Background technology
Axial flow blower is a kind of most commonly seen ventilating machinary of current fan industry, impeller be axial flow blower critical piece it
One, and blade is the critical component that blower fan provides air flow, the design of currently advanced adjusting rotor blade fan blade is limited by state
Outer developed country, introduces costly, and blade is often only for single hub ratio blower fan, can not meet between different hub ratios
Blade it is general.
Conventional fan design mode is the performance requirement according to ventilating system at present, determines the aeroperformance ginseng of blower fan
Number, then carries out the blade design of blade and the Three-dimension process of blade, the blower fan leaf of identical hub diameter difference impeller outer diameter again
Piece also tends to the inconsistent Three-dimension process for needing to re-start blade, and it is high to result in processing charges.
Utility model content
The purpose of this utility model is the introduction high cost for current domestic Axial Fan with Adjustable Vanes, general
A kind of the shortcomings that property deficiency, there is provided the blade design that can be general between different hub ratio blower fans of production domesticization.
The utility model is so that it is determined that the characteristic in each section according to the combination of existing two kinds of aerofoil profiles by Flow Field Calculation.Should
Leaf characteristic is as follows：It is blade root close to hub positions, is blade tip close to impeller housing side.A kind of axial-flow type is dynamic to adjust blade, its
It is characterised by：By seven sections are divided into short transverse, respectively section I, section II, section III, section IV, section V, cut
Face VI and section VII, the established angle in section I is 64.12 °, highly 100.74%~100.78% for hub radius, and thickness is wheel
The 3.73%~3.77% of hub radius, chord length are the 33.62%~33.66% of hub radius；The established angle in section II be 55.60 °~
55.64 °, depth of section is the 108.71%~108.75% of hub radius, and thickness is the 2.85%~2.89% of hub radius, chord length
For the 32.65%~32.69% of hub radius；The established angle in section III is 46.7 °~47.1 °, and depth of section is hub radius
120.14%~120.18%, section thickness be hub radius 2.07%~2.11%, chord length for hub radius 31.42%~
31.46%；The established angle in section IV is 41.09 °~41.13 °, and depth of section is the 131.57%~131.61% of hub radius, is cut
Face thickness is the 1.65%~1.69% of hub radius, and chord length is the 30.40%~30.44% of hub radius；The established angle in section V
For 36.89 °~36.93 °, depth of section is the 143.00%~143.04% of hub radius, and section thickness is hub radius
1.34%~1.38%, chord length is the 29.34%~29.38% of hub radius；The established angle in section VI is 33.41 °~33.45 °, is cut
Face is highly the 154.43%~154.47% of hub radius, and section thickness is the 1.18%~1.22% of hub radius, and chord length is wheel
The 28.63%~28.67% of hub radius；The established angle in section VII is 31.44 °~31.48 °, and depth of section is hub radius
164.18%~164.22%, section thickness is the 1.04%~1.08% of hub radius, and section chord length is the 28.10% of hub radius
~28.14%.
Relative to prior art, the utility model has advantages below：
Blade with features above by etc. circular rector design, there is cuttability, hub ratio more than 0.59 when can root
The cutting of vane tip is carried out according to impeller diameter, the blade after cutting still has good performance.
The transformation rule of blade is to zoom in or out each sectional dimension accordingly according to different axial fan hub ratios and then enter
Conduct vector product is folded, and carries out the cutting of blade tip further according to required impeller diameter so as to reach required hub ratio fan blade.
Brief description of the drawings
Fig. 1 is the utility model blade section figure, is divided into the blade profile molded line of seven different high positions of leaf.
Fig. 2 is the folded figure of the utility model basal area, and each section accumulate to the effect of poststack by the folded point of same product.
Fig. 3 is the utility model blade top view, from blade tip position to leaf with the direction view in terms of position.
In accompanying drawing, corresponding technical characteristic mark is as follows：
1- sections I, 2- sections II, 3- sections III, 4- sections IV, 5- sections V, 6- sections VI, 7- sections VII.
Embodiment
The utility model is further illustrated with reference to the accompanying drawings and examples.
Embodiment 1
It is 1000mm such as to need to design wheel hub, and hub ratio is 0.59 Axial Fan with Adjustable Vanes, then hub radius is
500mm, it is as follows to calculate then each cross-section data by the technical indicator in the content of the invention：
The established angle in section I is 64.12 °, highly 503.7~503.9mm for hub radius, and thickness is hub radius
18.65~18.85mm, chord length are 168.1~168.3mm of hub radius；The established angle in section II is 55.60 °~55.64 °,
Depth of section is 543.55~543.75mm, and thickness is 14.25~14.45mm, and chord length is 163.25~163.45mm；Section III
Established angle be 46.7 °~47.1 °, depth of section is 600.7~600.9mm, and section thickness is 10.35~10.55mm, chord length
For 157.1~157.3mm；The established angle in section IV is 41.09 °~41.13 °, and depth of section is 657.85~658.05mm, is cut
Face thickness is 8.25~8.45mm, and chord length is 152.0~152.2mm；The established angle in section V is 36.89 °~36.93 °, section
Highly it is 715~715.2mm, section thickness is 6.7~6.9mm, and chord length is 146.7~146.9mm；The established angle in section VI is
33.41 °~33.45 °, depth of section is 772.15~772.35mm, and section thickness is 5.9~6.1mm, chord length is 143.15~
143.35mm；The established angle in section VII is 31.44 °~31.48 °, and depth of section is 820.9~821.1mm, and section thickness is
5.2~5.4mm, section chord length are 140.5~140.7mm.
It is the ratio that each sectional dimension in Fig. 1 and section distance between the surface are multiplied by hub radius, obtains target blade
Each cross-section data carry out as shown in Figure 2 each section product it is folded so as to forming the 3D solid of target blade.
Embodiment 2
It is 1000mm such as to need to design hub diameter, and hub ratio is 0.65 axial-flow fan blade, blade profile data and reality
The generating process of example 1 is consistent, and because wheel hub is bigger after blade global formation, blade is short compared to the blade that hub ratio is 0.59,
Can be by cutting off vane tip to the outer blade diameter needed.
Claims (2)
1. a kind of axial-flow type is dynamic to adjust fan blade, it is characterised in that：It is blade root close to hub positions, is close to impeller housing side
Blade tip, blade are divided into seven sections along in short transverse, respectively section I, section II, section III, section IV, section V, cut
Face VI and section VII, the established angle in section I is 64.12 °, highly 100.74%~100.78% for hub radius, and thickness is wheel
The 3.73%~3.77% of hub radius, chord length are the 33.62%~33.66% of hub radius；The established angle in section II be 55.60 °~
55.64 °, depth of section is the 108.71%~108.75% of hub radius, and thickness is the 2.85%~2.89% of hub radius, chord length
For the 32.65%~32.69% of hub radius；The established angle in section III is 46.7 °~47.1 °, and depth of section is hub radius
120.14%~120.18%, section thickness be hub radius 2.07%~2.11%, chord length for hub radius 31.42%~
31.46%；The established angle in section IV is 41.09 °~41.13 °, and depth of section is the 131.57%~131.61% of hub radius, is cut
Face thickness is the 1.65%~1.69% of hub radius, and chord length is the 30.40%~30.44% of hub radius；The established angle in section V
For 36.89 °~36.93 °, depth of section is the 143.00%~143.04% of hub radius, and section thickness is hub radius
1.34%~1.38%, chord length is the 29.34%~29.38% of hub radius；The established angle in section VI is 33.41 °~33.45 °, is cut
Face is highly the 154.43%~154.47% of hub radius, and section thickness is the 1.18%~1.22% of hub radius, and chord length is wheel
The 28.63%~28.67% of hub radius；The established angle in section VII is 31.44 °~31.48 °, and depth of section is hub radius
164.18%~164.22%, section thickness is the 1.04%~1.08% of hub radius, and section chord length is the 28.10% of hub radius
~28.14%.
2. a kind of axial-flow type according to claim 1 is dynamic to adjust fan blade, it is characterised in that：By etc. circular rector design, can be with
Cutting blade tip meets the needs of different hub ratio fan blades.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292256.3U CN206708092U (en) | 2017-03-24 | 2017-03-24 | A kind of axial-flow type is dynamic to adjust fan blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720292256.3U CN206708092U (en) | 2017-03-24 | 2017-03-24 | A kind of axial-flow type is dynamic to adjust fan blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206708092U true CN206708092U (en) | 2017-12-05 |
Family
ID=60470850
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720292256.3U Active CN206708092U (en) | 2017-03-24 | 2017-03-24 | A kind of axial-flow type is dynamic to adjust fan blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206708092U (en) |
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2017
- 2017-03-24 CN CN201720292256.3U patent/CN206708092U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 610045 No. 15 West Fourth Road, Wuhou District martial arts, Chengdu, Sichuan Patentee after: China Electric Construction Group Turbine Technology Co., Ltd. Address before: 610045 No. 15 West Fourth Road, Wuhou District martial arts, Chengdu, Sichuan Patentee before: Chengdu Power Machinery Works |