CN1995759A - Centrifugal fan impeller - Google Patents
Centrifugal fan impeller Download PDFInfo
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- CN1995759A CN1995759A CN 200610150632 CN200610150632A CN1995759A CN 1995759 A CN1995759 A CN 1995759A CN 200610150632 CN200610150632 CN 200610150632 CN 200610150632 A CN200610150632 A CN 200610150632A CN 1995759 A CN1995759 A CN 1995759A
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- impeller
- millimeters
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- centrifugal fan
- millimeter
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Abstract
The invention relates to a centrifugal fan impeller, comprising two same left-right impellers and a hub. Each impeller comprises an edge plate, multiple vanes and an inner plate. Left-right impellers are fixed on the hub by bolt and nut. It is characterized in that the impeller diameter D is from 202mm to 1020mm; the diameter of impeller inlet d is from 151mm to 761mm; the total width of impeller B is from 188mm to 906mm; the outlet width of impeller b is from 55. 5mm to 250.5mm; the angle of impeller outlet alpha is from 42 degrees to 52 degrees; the total number of vanes is from 10*2 to 12*2. The invention can obtain the optimal effect under the condition of smaller impeller diameter. It is provided with ease production, low cost and the centrifugal fan with the impeller is provided with long service life. The efficiency is improved by 3% compared with prior centrifugal fan.
Description
Technical field
The present invention relates to a kind of draught fan impeller, more precisely relate to the impeller of centrifugal fan.
Background technique
In the prior art, centrifugal fan impeller is made up of two limits dish and a mid-game and a plurality of blade.In general, the centrifugal fan impeller diameter is big more, and the outlet pressure of centrifugal fan is high more; The centrifugal fan impeller exit width is big more, and the exhaust air rate of centrifugal fan is big more.But the material of making impeller is directly proportional with the size of impeller, so have the draught fan impeller of big impeller diameter and big impeller outlet width, has strengthened the input of material, has increased the weight of impeller.Along with the increase of impeller weight, descend to the working life of bearing, and the power of blower fan increases.In addition, making the centrifugal fan impeller with big impeller diameter and big impeller outlet width needs big manufacturing equipment and mould, and investment cost increases greatly, and manufacture difficulty constantly rises.In addition, the more important thing is to have the centrifugal fan of the centrifugal fan impeller of prior art, its efficient is lower, generally is no more than 76%.
Summary of the invention
The present invention to solve being difficult to that large diameter centrifugal fan impeller brings make, cost increases and have short, low these technical problems of efficient of centrifugal fan life-span of this centrifugal fan impeller, and a kind of centrifugal fan impeller with parameters optimization is provided.
Centrifugal fan impeller of the present invention comprises two identical left and right impellers and a wheel hub, and each impeller all comprises dish, a plurality of blade and an inner disc on one side, by screw bolt and nut left and right impeller is fixedly mounted on the wheel hub, it is characterized in that:
Impeller diameter D is 202 millimeters to 1020 millimeters;
The impeller inlet diameter d is 151 millimeters to 761 millimeters;
Impeller overall width B is 188 millimeters to 906 millimeters;
Impeller outlet width b is 55.5 millimeters to 250.5 millimeters;
Angle of impeller outlet alpha is that 42 degree are to 52 degree;
The blade amt amount is 10 * 2 to 12 * 2.
Centrifugal fan impeller of the present invention, found the optimization of matching relation of impeller diameter D, impeller inlet diameter d, impeller overall width B, single impeller outlet width b, angle of impeller outlet alpha and blade amt amount N, under the less situation of impeller diameter, still can obtain preferable effect, be easy to manufacturing, cost reduction, the centrifugal fan life-span with this kind centrifugal fan impeller increases, and efficient has improved 3% than existing centrifugal fan.
Preferably:
Impeller diameter D is 206 millimeters;
The impeller inlet diameter d is 154 millimeters;
Impeller overall width B is 192 millimeters;
Impeller outlet width b is 55.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 10 * 2.
Preferably:
Impeller diameter D is 258 millimeters;
The impeller inlet diameter d is 193 millimeters;
Impeller overall width B is 240 millimeters;
Impeller outlet width b is 69.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 10 * 2.
Preferably:
Impeller diameter D is 323 millimeters;
The impeller inlet diameter d is 244 millimeters;
Impeller overall width B is 300 millimeters;
Impeller outlet width b is 83.3 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
Preferably:
Impeller diameter D is 363 millimeters;
The impeller inlet diameter d is 275 millimeters;
Impeller overall width B is 338 millimeters;
Impeller outlet width b is 94.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
Preferably:
Impeller diameter D is 407 millimeters;
The impeller inlet diameter d is 306 millimeters;
Impeller overall width B is 378 millimeters;
Impeller outlet width b is 105.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
Preferably:
Impeller diameter D is 510 millimeters;
The impeller inlet diameter d is 382 millimeters;
Impeller overall width B is 475 millimeters;
Impeller outlet width b is 134.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
Preferably:
Impeller diameter D is 640 millimeters;
The impeller inlet diameter d is 475 millimeters;
Impeller overall width B is 577 millimeters;
Impeller outlet width b is 161.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
Preferably:
Impeller diameter D is 808 millimeters;
The impeller inlet diameter d is 606 millimeters;
Impeller overall width B is 722 millimeters;
Impeller outlet width b is 203.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
Preferably:
Impeller diameter D is 1000 millimeters;
The impeller inlet diameter d is 746 millimeters;
Impeller overall width B is 888 millimeters;
Impeller outlet width b is 250.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
Description of drawings
The present invention is further illustrated below in conjunction with the drawings and specific embodiments.
Fig. 1 is the vertical profile schematic views of draught fan impeller of the present invention;
Fig. 2 is the blade distribution schematic diagram of impeller shown in Figure 1.
Embodiment
Centrifugal fan impeller illustrated in figures 1 and 2 comprises that two identical left and right impellers 10,10 and have the wheel hub 5 of keyway.Each impeller 10 all comprise coil on one side 1, a plurality of blade 2 and an inner disc 3.Two big surfaces of blade 2 are the plane, and two relative the right and lefts of blade 2 are welded to connect with inner disc 3 and limit dish 1 respectively.The Surface Vertical of blade 2 and inner disc 3.For impeller 10 is strengthened, at the inward flange 21 welding one annulus stiffening ring 4 of a plurality of blades 2.The inward flange 21 of blade 2 is an arc, and outward edge 22 is a straight line.Wheel hub 5 is fixedly mounted on two inner discs 3,3 of left and right impeller 10,10 by screw bolt and nut, two inner discs 3,3 are positioned at fixedlys connected a side of part with wheel hub 5, and two inner discs 3,3 contact with each other.Annulus stiffening ring 4 is welded on the middle part of the inward flange 21 of a plurality of blades 2.
The present inventor passes through effort for many years, on the basis of a large amount of tests, found the optimization of matching relation of impeller diameter D, impeller inlet diameter d, impeller overall width B, single impeller outlet width b, angle of impeller outlet alpha and blade amt amount N, thereby under centrifugal fan impeller has situation than minor diameter, make the outlet of centrifugal fan still have elevated pressures and bigger air displacement, centrifugal fan efficient reaches 77% to 80%, has improved 3% than existing centrifugal fan.
First group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 202 151 188 55.5 42 10×2
2 206 154 192 55.5 47 10×2
3 210 157 196 55.5 52 10×2
Second group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 226 170 211 62.5 42 10×2
2 231 173 215 62.5 47 10×2
3 236 176 219 62.5 52 10×2
The 3rd group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 253 189 235 69.0 42 10×2
2 258 193 240 69.0 47 10×2
3 263 197 245 69.0 52 10×2
The 4th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 282 214 264 73.5 42 11×2
2 288 218 269 73.5 47 11×2
3 294 222 274 73.5 52 11×2
The 5th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 317 239 294 83.3 42 11×2
2 323 244 300 83.3 47 11×2
3 329 249 306 83.3 52 11×2
The 6th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 356 270 331 94.5 42 11×2
2 363 275 338 94.5 47 11×2
3 370 281 345 94.5 52 11×2
The 7th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 399 300 370 105.5 42 11×2
2 407 306 378 105.5 47 11×2
3 415 312 386 105.5 52 11×2
The 8th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 447 332 407 115.5 42 11×2
2 456 339 415 115.5 47 11×2
3 465 346 423 115.5 52 11×2
The 9th group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 500 374 466 134.5 42 12×2
2 510 382 475 134.5 47 12×2
3 520 390 485 134.5 52 12×2
The tenth group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 559 416 504 145.5 42 12×2
2 570 424 514 145.5 47 12×2
3 581 432 524 145.5 52 12×2
The 11 group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 627 466 565 161.5 42 12×2
2 640 475 577 161.5 47 12×2
3 653 485 589 161.5 52 12×2
The 12 group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 705 521 633 183.0 42 12×2
2 719 532 646 183.0 47 12×2
3 733 543 659 183.0 52 12×2
The 13 group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 792 594 708 203.0 42 12×2
2 808 606 722 203.0 47 12×2
3 824 618 736 203.0 52 12×2
The 14 group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 888 662 793 226.5 42 12×2
2 906 676 809 226.5 47 12×2
3 924 690 825 226.5 52 12×2
The 15 group of embodiment:
Sequence number D (millimeter) d (millimeter) B (millimeter) b (millimeter) α (degree) N (individual)
1 980 731 870 250.5 42 12×2
2 1000 746 888 250.5 47 12×2
3 1020 761 906 250.5 52 12×2
Claims (10)
1, a kind of centrifugal fan impeller comprises two identical left and right impellers and a wheel hub, and each impeller all comprises dish, a plurality of blade and an inner disc on one side, by screw bolt and nut left and right impeller is fixedly mounted on the wheel hub, it is characterized in that:
Impeller diameter D is 202 millimeters to 1020 millimeters;
The impeller inlet diameter d is 151 millimeters to 761 millimeters;
Impeller overall width B is 188 millimeters to 906 millimeters;
Impeller outlet width b is 55.5 millimeters to 250.5 millimeters;
Angle of impeller outlet alpha is that 42 degree are to 52 degree;
The blade amt amount is 10 * 2 to 12 * 2.
2, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 206 millimeters;
The impeller inlet diameter d is 154 millimeters;
Impeller overall width B is 192 millimeters;
Impeller outlet width b is 55.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 10 * 2.
3, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 258 millimeters;
The impeller inlet diameter d is 193 millimeters;
Impeller overall width B is 240 millimeters;
Impeller outlet width b is 69.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 10 * 2.
4, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 323 millimeters;
The impeller inlet diameter d is 244 millimeters;
Impeller overall width B is 300 millimeters;
Impeller outlet width b is 83.3 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
5, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 363 millimeters;
The impeller inlet diameter d is 275 millimeters;
Impeller overall width B is 338 millimeters;
Impeller outlet width b is 94.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
6, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 407 millimeters;
The impeller inlet diameter d is 306 millimeters;
Impeller overall width B is 378 millimeters;
Impeller outlet width b is 105.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 11 * 2.
7, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 510 millimeters;
The impeller inlet diameter d is 382 millimeters;
Impeller overall width B is 475 millimeters;
Impeller outlet width b is 134.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
8, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 640 millimeters;
The impeller inlet diameter d is 475 millimeters;
Impeller overall width B is 577 millimeters;
Impeller outlet width b is 161.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
9, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 808 millimeters;
The impeller inlet diameter d is 606 millimeters;
Impeller overall width B is 722 millimeters;
Impeller outlet width b is 203.0 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
10, according to the described centrifugal fan impeller of claim 1, it is characterized in that:
Impeller diameter D is 1000 millimeters;
The impeller inlet diameter d is 746 millimeters;
Impeller overall width B is 888 millimeters;
Impeller outlet width b is 250.5 millimeters;
Angle of impeller outlet alpha is 47 degree;
The blade amt amount is 12 * 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610150632 CN1995759A (en) | 2006-10-20 | 2006-10-20 | Centrifugal fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200610150632 CN1995759A (en) | 2006-10-20 | 2006-10-20 | Centrifugal fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN1995759A true CN1995759A (en) | 2007-07-11 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200610150632 Pending CN1995759A (en) | 2006-10-20 | 2006-10-20 | Centrifugal fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN1995759A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100181A (en) * | 2016-07-26 | 2016-11-09 | 浙江高领新能源科技有限公司 | A kind of oil-free vortex air compressor machine external rotor electric machine |
-
2006
- 2006-10-20 CN CN 200610150632 patent/CN1995759A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100181A (en) * | 2016-07-26 | 2016-11-09 | 浙江高领新能源科技有限公司 | A kind of oil-free vortex air compressor machine external rotor electric machine |
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| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |