CN104019061B - A kind of discontinuous ventilating duct of axial flow blower - Google Patents
A kind of discontinuous ventilating duct of axial flow blower Download PDFInfo
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- CN104019061B CN104019061B CN201410244209.2A CN201410244209A CN104019061B CN 104019061 B CN104019061 B CN 104019061B CN 201410244209 A CN201410244209 A CN 201410244209A CN 104019061 B CN104019061 B CN 104019061B
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- ventilating duct
- fan
- air intake
- intake cylinder
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Abstract
The present invention relates to the discontinuous ventilating duct of a kind of axial flow blower, including motor (1) and ventilating duct (5), rotating disk (2) it is fixedly connected with in the rotating shaft of motor (1), some fan blades (3) it have been bolted on rotating disk (2), fan blade (3) is placed in ventilating duct (5), the two ends up and down of ventilating duct (5) all form outward extending flange (54), bolt through-hole (55) is formed on flange (54), just to the grooving (53) forming annular on ventilating duct (5) barrel of fan blade (3) outer end, grooving (53) segmentation ventilating duct (5) is shaped to chimney fan (51) and upper and lower two cylinders of air intake cylinder (51).Grooving on ventilating duct be easy to fan blade rotate formed positive and negative nip and atmosphere convection, thus thus decrease air quantity and air loss, improve the operating efficiency of blower fan, reduce fan noise.
Description
Technical field:
The present invention relates to the technical field of axial flow blower, more specifically to a kind of axial flow blower
Discontinuous ventilating duct.
Background technology:
Ventilating duct has the effect guiding the distinguished and admirable flow direction, is often used in combination with blower fan.Existing
The barrel of ventilating duct is typically all continuous print, does not i.e. split the conduit of ventilating duct on barrel, its
Easy structure is as shown in Figure 1: when blower fan works, the fan blade 3 in ventilating duct 5 rotates, its
Wind direction a is upwards, thus produces zone of positive pressure b at ventilating duct 5 outlet section, enters at ventilating duct 5
Mouthful section produces negative pressuren zone c, air-flow then from zone of positive pressure b through fan blade 3 end of blade (or the wing of end of blade
Sheet 4) and ventilating duct 5 between space flow to negative pressuren zone c, i.e. in leakage phenomenon, and simultaneously can be
Fin 4 afterbody produces eddy current, increase wind wheel resistance. thus not only reduce fan efficiency,
Also increase fan noise.
Summary of the invention:
The purpose of the present invention is aiming at the deficiency of prior art, and provides a kind of axial flow blower
Discontinuous ventilating duct, which raises fan efficiency, reduces the noise of blower fan.
The technology solution of the present invention is as follows:
The discontinuous ventilating duct of a kind of axial flow blower, including motor and ventilating duct, turning of motor
Being fixedly connected with rotating disk on axle, rotating disk has been bolted some fan blades, fan blade is placed in
In ventilating duct, the two ends up and down of ventilating duct all form outward extending flange, and flange is molded
There is bolt through-hole, just to forming annular grooving, grooving on the ventilating duct barrel of fan blade outer end
Segmentation ventilating duct is shaped to chimney fan and upper and lower two cylinders of air intake cylinder；
Described fan blade uniformly annular is distributed on rotating disk, and the outer end of fan blade is fixedly connected with the wing
Sheet, the grooving of segmentation ventilating duct is positioned at the horizontal outer side of fin；
Described flange is molded over upper end and the lower end of air intake cylinder of chimney fan respectively, chimney fan and
By being fixed together through the screw rod of bolt through-hole on flange between air intake cylinder, chimney fan
Lower surface and the upper surface of air intake cylinder between leave gap.
Described chimney fan and air intake cylinder are by being welded on the weldering on chimney fan and air intake drum outer wall
Connect support to be fixed together, leave between lower surface and the upper surface of air intake cylinder of chimney fan
Gap.
Being provided with some ribs in the grooving of described ventilating duct, the upper and lower side of rib takes shape in air-out
On cylinder and air intake air intake cylinder, rib separates grooving and becomes some arc sections.
The described chimney fan on ventilating duct and air intake cylinder are for manufacture respectively, the most separately installed,
Gap is left between chimney fan and air intake cylinder.
The beneficial effects of the present invention is:
1, it forms the grooving of segmentation on the basis of original ventilating duct on barrel, thus
Make ventilating duct become chimney fan and air intake cylinder, and be provided with gap in-between, it is simple to fan blade rotates
The positive and negative nip formed and atmosphere convection, it is to avoid interior leakage, thus decrease air quantity and blast
Loss, improves the operating efficiency of blower fan.
2, it avoids fan blade outer end fin afterbody while decreasing air quantity and air loss
The generation of eddy current, thus while improving fan efficiency, reduce the noise of blower fan.
Accompanying drawing illustrates:
Fig. 1 is the easy structure schematic diagram of existing continous way stator air duct and blower fan；
Fig. 2 is the discontinuous stator air duct easy structure schematic diagram with blower fan of the present invention；
Fig. 3 is the discontinuous stator air duct surface structure schematic diagram with blower fan of the present invention；
Fig. 4 is the easy structure schematic diagram of the connected mode of the upper and lower air duct of stator air duct；
Fig. 5 is the easy structure schematic diagram of the another kind of connected mode of the upper and lower air duct of stator air duct.
In figure: 1, motor；2, rotating disk；3, fan blade；4, fin；5, ventilating duct；6、
Screw rod；7, welding support；51, chimney fan；52, air intake cylinder；53, grooving；54, turn over
Limit；55, bolt through-hole.
Detailed description of the invention:
Embodiment: such as Fig. 2, shown in 3, the discontinuous ventilating duct of a kind of axial flow blower, bag
Include motor 1 and ventilating duct 5, the rotating shaft of motor 1 is fixedly connected with rotating disk 2, on rotating disk 2
Being bolted some fan blades 3, fan blade 3 is placed in ventilating duct 5, ventilating duct 5
Two ends all form outward extending flange 54 up and down, and flange 54 forms bolt through-hole 55,
Just to forming annular grooving 53, grooving 53 points on ventilating duct 5 barrel of fan blade 3 outer end
Cut ventilating duct 5 and be shaped to chimney fan 51 and about 52 two cylinders of air intake cylinder.
The described uniform annular of fan blade 3 is distributed on rotating disk 2, and the outer end of fan blade 3 is fixing to be connected
Having fin 4, the grooving 53 of segmentation ventilating duct 5 is positioned at the horizontal outer side of fin 4.
As shown in Figure 4, described flange 54 is molded over upper end and the air intake of chimney fan 51 respectively
The lower end of cylinder 52, by through bolt mistake on flange 54 between chimney fan 51 and air intake cylinder 52
The screw rod 6 in hole 55 is fixed together, the lower surface of chimney fan 51 and air intake cylinder 52
Gap is left between upper surface.
As shown in Figure 5, described chimney fan 51 and air intake cylinder 52 are by being welded on chimney fan
51 and air intake cylinder 52 outer wall on welding support 7 be fixed together, chimney fan 51
Gap is left between the upper surface of lower surface and air intake cylinder 52.
It is provided with some ribs, the upper and lower side shaping of rib in the grooving 53 of described ventilating duct 5
On chimney fan 51 and air intake air intake cylinder 52, rib separates grooving 53 and becomes some arc sections.
The described chimney fan 51 on ventilating duct 5 and air intake cylinder 52 are for manufacture respectively, each single
Solely install, between chimney fan 51 and air intake cylinder 52, leave gap.
Operation principle: effect of the invention is that: at barrel on the basis of original ventilating duct 5
On form grooving 53, make middle discontinuous ventilating duct, owing to grooving 53 connects
The inside of ventilating duct 5 is with outside, and the zone of positive pressure b making blower fan work produce is the most straight with negative pressuren zone c
The interior leakage of life of practicing midwifery, but respective and ventilating duct 5 outside atmosphere convection current, thus troposphere pressure reduction
Being reduced to original 1/2, therefore leakage rate slows down, air quantity all reduces with air loss. meanwhile,
Because zone of positive pressure b and negative pressuren zone c each convection current are in air, winglet afterbody does not produce eddy current.From
And based on above-mentioned principle, this ventilating duct can improve fan efficiency, can effectively reduce noise simultaneously.
Claims (5)
1. the discontinuous ventilating duct of an axial flow blower, including motor (1) and ventilating duct (5), rotating disk (2) it is fixedly connected with in the rotating shaft of motor (1), some fan blades (3) it have been bolted on rotating disk (2), fan blade (3) is placed in ventilating duct (5), the two ends up and down of ventilating duct (5) all form outward extending flange (54), bolt through-hole (55) is formed on flange (54), it is characterized in that: just to the grooving (53) forming annular on ventilating duct (5) barrel of fan blade (3) outer end, grooving (53) segmentation ventilating duct (5) is shaped to chimney fan (51) and upper and lower two cylinders of air intake cylinder (52)；
Described fan blade (3) uniformly annular is distributed on rotating disk (2), the outer end of fan blade (3) is fixedly connected with fin (4), and the grooving (53) of segmentation ventilating duct (5) is positioned at the horizontal outer side of fin (4).
The discontinuous ventilating duct of a kind of axial flow blower the most according to claim 1, it is characterized in that: described flange (54) is molded over upper end and the lower end of air intake cylinder (52) of chimney fan (51) respectively, by being fixed together through the screw rod (6) of the upper bolt through-hole (55) of flange (54) between chimney fan (51) and air intake cylinder (52), screw rod is plugged with pipe box on (6), the upper and lower side of pipe box presses up against on the flange (54) of chimney fan (51) and air intake cylinder (52), gap is left between lower surface and the upper surface of air intake cylinder (52) of chimney fan (51).
The discontinuous ventilating duct of a kind of axial flow blower the most according to claim 1, it is characterized in that: described chimney fan (51) and air intake cylinder (52) are fixed together by the welding support (7) being welded on chimney fan (51) and air intake cylinder (52) outer wall, between lower surface and the upper surface of air intake cylinder (52) of chimney fan (51), leave gap.
The discontinuous ventilating duct of a kind of axial flow blower the most according to claim 1, it is characterized in that: in the grooving (53) of described ventilating duct (5), be provided with some ribs, the upper and lower side of rib takes shape on chimney fan (51) and air intake cylinder (52), and rib separates grooving (53) and becomes some arc sections.
The discontinuous ventilating duct of a kind of axial flow blower the most according to claim 1, it is characterized in that: the described chimney fan (51) on ventilating duct (5) and air intake cylinder (52) are for manufacture respectively, the most separately installed, leave gap between chimney fan (51) and air intake cylinder (52).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244209.2A CN104019061B (en) | 2014-06-04 | 2014-06-04 | A kind of discontinuous ventilating duct of axial flow blower |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410244209.2A CN104019061B (en) | 2014-06-04 | 2014-06-04 | A kind of discontinuous ventilating duct of axial flow blower |
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| Publication Number | Publication Date |
|---|---|
| CN104019061A CN104019061A (en) | 2014-09-03 |
| CN104019061B true CN104019061B (en) | 2016-09-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410244209.2A Active CN104019061B (en) | 2014-06-04 | 2014-06-04 | A kind of discontinuous ventilating duct of axial flow blower |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108094218A (en) * | 2018-01-12 | 2018-06-01 | 佛山市辉华生物科技有限公司 | A kind of pig house hot wind air ducting |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871294A (en) * | 1982-06-29 | 1989-10-03 | Ivanov Sergei K | Axial-flow fan |
| EP1614863A1 (en) * | 2004-07-08 | 2006-01-11 | MTU Aero Engines GmbH | Fluid structure for a turbocompressor |
| CN203441792U (en) * | 2013-08-22 | 2014-02-19 | 浙江惠创风机有限公司 | Axial-flow type cooling fan of wind power air cooler |
| CN203926144U (en) * | 2014-06-04 | 2014-11-05 | 新昌县三新空调风机有限公司 | A kind of discontinuous formula air conducting tube of axial-flow blower |
-
2014
- 2014-06-04 CN CN201410244209.2A patent/CN104019061B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4871294A (en) * | 1982-06-29 | 1989-10-03 | Ivanov Sergei K | Axial-flow fan |
| EP1614863A1 (en) * | 2004-07-08 | 2006-01-11 | MTU Aero Engines GmbH | Fluid structure for a turbocompressor |
| CN203441792U (en) * | 2013-08-22 | 2014-02-19 | 浙江惠创风机有限公司 | Axial-flow type cooling fan of wind power air cooler |
| CN203926144U (en) * | 2014-06-04 | 2014-11-05 | 新昌县三新空调风机有限公司 | A kind of discontinuous formula air conducting tube of axial-flow blower |
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|---|---|
| CN104019061A (en) | 2014-09-03 |
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Address after: 312521 No. 6 Wangsizhou Road, Bamao Industrial Zone, Xinchang County, Shaoxing City, Zhejiang Province Patentee after: ZHEJIANG SANXIN TECHNOLOGY Co.,Ltd. Address before: 312500 No. 6 Wang Sizhou Road, Xinchang County, Shaoxing City, Zhejiang Province Patentee before: XINCHANG COUNTY SANXIN AIR CONDITIONER FANS Co.,Ltd. |
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Denomination of invention: A discontinuous air duct for axial flow fans Effective date of registration: 20230912 Granted publication date: 20160907 Pledgee: Postal Savings Bank of China Limited by Share Ltd. Xinchang branch Pledgor: ZHEJIANG SANXIN TECHNOLOGY Co.,Ltd. Registration number: Y2023330002023 |
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