CN201723463U - High-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator - Google Patents
High-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator Download PDFInfo
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- CN201723463U CN201723463U CN2010201864662U CN201020186466U CN201723463U CN 201723463 U CN201723463 U CN 201723463U CN 2010201864662 U CN2010201864662 U CN 2010201864662U CN 201020186466 U CN201020186466 U CN 201020186466U CN 201723463 U CN201723463 U CN 201723463U
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- 230000008676 import Effects 0.000 claims description 22
- 229920003266 Leaf® Polymers 0.000 claims description 3
- 238000001816 cooling Methods 0.000 abstract description 6
- 230000001681 protective effect Effects 0.000 abstract description 4
- 238000004519 manufacturing process Methods 0.000 abstract description 2
- 230000003137 locomotive effect Effects 0.000 description 7
- 238000005452 bending Methods 0.000 description 2
- 238000005265 energy consumption Methods 0.000 description 2
- 238000012856 packing Methods 0.000 description 2
- 238000009423 ventilation Methods 0.000 description 2
- 230000002950 deficient Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000010408 sweeping Methods 0.000 description 1
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Abstract
The utility model discloses a high-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator, which belongs to the technical field of blowers and is characterized in that the centrifugal ventilator consists of a motor, a support frame, a back side plate, an impeller, an exhaust scroll casing, a front side plate, a conical inlet flow guide pipe, a protective screen and an inlet flow guide cover, wherein the impeller adopts an inclined wheel disc structure, the inclined wheel disc refers to that the wheel disc is not vertical to a motor shaft in a front view, the inlet flow guide cover is additionally added at a wheel hub part, and in addition, the impeller adopts 36 circular arc-shaped long blades. The exhaust scroll sectional line adopts the logarithm spiral line form, the front side plate is provided with a large hole, and the back side plate is provided with a small hole. The utility model meets the high-total-pressure and large-flow rate operation requirement of a cooling blower, and the air flowing condition inside the ventilator can be improved through the special inclined wheel disc design, so both the flowing loss and the noise can be reduced. In addition, compared with traditional ventilators in the same type, the utility model has the advantage that the processing and manufacture can be more simpler because the number of blades of the impeller is small.
Description
Technical field
This patent belongs to the blower fan technical field, relates to the cooling channel of a kind of locomotive traction motor and relevant device, specially refers to a kind of high full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller.
Background technique
Centrifugal blower is widely used in ventilation, dust discharge and the cooling of vehicle, boats and ships, factory, mine, tunnel, cooling tower and building.It mainly is made up of impeller and casing, and impeller is the critical piece of centrifugal blower, and its geometrical shape, size, blade number and accuracy of manufacturing have a significant impact performance.Usually, centrifugal blower has coefficient of total pressure height, characteristics that flow coefficient is big.
Yet the space in the locomotive is quite limited, and is higher to the requirement of centrifugal blower, when high total head, big flow are provided, must satisfy that noise is low, compact structure, condition such as little takes up room.And in actual use, centrifugal blower is lower in the operational efficiency of big flow operation point, and it is bigger to consume electric power, and power is too high, and the power of its consumption occupies larger proportion in the locomotive auxiliary power, and the efficient of locomotive integral body is caused bigger influence.Main cause is: the centrifugal cooling fan of locomotive of the prior art, its hub disk all adopt through ship dish structure, and so-called through ship dish is exactly that hub disk is vertical in plan view with motor shaft), though simple in structure, aeroperformance is relatively poor.Under the situation that requires high total head and big flow, the impeller of through ship dish needs a lot of blades, and about 60～70, this has increased the difficulty that impeller is made to a certain extent, has improved the cost of ventilator.And because this type of blower fan is generally the single-stage cantilever type, and the impeller inlet wheel hub for simple in structure, is not installed flow guide device mostly, causes the air flows situation disorder of ventilator inlet, produces and impact, not only cause efficient to reduce and also produced great noise.Therefore, need the centrifugal cooling fan of design improvement, further improve its performance, reduce its energy consumption.
The model utility content
The technical problem that this patent will solve provides the centrifugal blower of the oblique wheel disc impeller of a kind of high full-voltage large-flow, providing under the situation of high full-voltage large-flow, overcoming the tradition ventilation machine hangs down and the big defective of energy consumption in big flow operation point operational efficiency, further improve pneumatic efficiency, unit efficiency and the utilization efficiency of ventilator, with the ratio that the power that reduces its consumption occupies, improve the operational efficiency of locomotive integral body in the locomotive auxiliary power.
The technical solution of this patent is:
A kind of high full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller comprises motor, impeller, exhaust volute, awl arc import honeycomb duct, import air guide sleeve; It is characterized in that the back side panel of exhaust volute and motor are fixed on the support, the projecting shaft of motor stretches in the exhaust volute by the aperture on the exhaust volute; Impeller enters into exhaust volute by the macropore on the front side plate of exhaust volute; The wheel hub of impeller is enclosed within on the projecting shaft that stretches into the motor in the exhaust volute, and the motor projecting shaft is fixed on the wheel hub of impeller foremost; The import air guide sleeve is fixedly mounted on the wheel hub of impeller, by the connection between the front side plate of awl arc import honeycomb duct and exhaust volute the import honeycomb duct is fixed on the exhaust volute;
Impeller adopts oblique wheeling disk structure, and wheel disc and motor shaft are in the central shaft out of plumb, and the impeller hub place installs the cone-shaped inlet air guide sleeve additional, and exhaust volute adopts the log spiral type.
The axial cross section of cone-shaped inlet air guide sleeve is circular arc line thereby meets flow characteristic more and satisfy the high full-voltage large-flow requirement.Impeller can adopt 36 circular arc linear leafs in this patent, adopts a lot of short blades to compare mostly with traditional of the same type preceding bending impeller, and number obviously reduces about half, and entrance edge of blade has bigger extension to impeller inlet.
Exhaust volute inwall molded lines adopts the log spiral form, and has macropore on its front side plate, is used for packing into of impeller, has the aperture that can pass the motor projecting shaft on the back side panel.
This patent is reasonable in design, and its effect and benefit mainly comprise:
(1) impeller adopts oblique wheel disc, has taken into account the requirement of big flow and high total head, and makes the sweeping style in the impeller more meet flow feature, has reduced flow losses;
(2) install the import air guide sleeve on the wheel hub additional, improved the air flows situation at impeller inlet place, reduced ventilator because the noise that produces is impacted in import;
(3) increase of length of blade is equal to the effective acting area that increases individual blade, and the number of blade is reduced to some extent, and cascade solidity reduces, thereby has reduced the difficulty of processing of impeller;
(4) the log spiral form of exhaust volute molded lines helps the collection of air, and flow losses are reduced.
Description of drawings
Fig. 1 is the main TV structure schematic representation of this patent.
Fig. 2 is the right side structural representation of this patent.
Among the figure: 1 motor; 2 supports; 3 back side panels; 4 impellers; 5 exhaust volutes; 6 front side plates; 7 import honeycomb ducts; 8 protective nets; 9 import air guide sleeves.
Embodiment
Be described in detail the embodiment of this patent below in conjunction with technological scheme and accompanying drawing.
As shown in Figure 1 and Figure 2, a kind of high full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller of this patent is made up of motor 1, support 2, back side panel 3, impeller 4, exhaust volute 5, front side plate 6, awl arc import honeycomb duct 7, protective net 8 and import air guide sleeve 9.Wherein impeller 4 adopts oblique wheel disc, wheel hub installs conical import air guide sleeve 9 additional, and adopt a lot of short blades to compare mostly with traditional of the same type preceding bending impeller, impeller 4 adopts 36 circular arc linear leafs in this patent, number obviously reduces about half, and entrance edge of blade has bigger extension to impeller 4 imports, exhaust volute 5 molded lines employing log spiral form, front side plate 6 has the macropore of the impeller 4 of can packing into, and back side panel 3 has the aperture that can stretch into motor 1 projecting shaft.
During installation, the back side panel of exhaust volute 5 and motor 1 are by being bolted on the support 2, the projecting shaft of motor 1 stretches in the exhaust volute 4 by back side panel 3 apertures of exhaust volute 5, impeller 4 pushes in the exhaust volute 5 by the macropore of exhaust volute 5 front side plates 6, the wheel hub of impeller 4 is enclosed within on the projecting shaft of the motor 1 that stretches in the exhaust volute 5, be screwed in the wheel hub that fixes impeller 4 on the motor 1 projecting shaft screw thread foremost by nut, so just realized the fixing of motor 1 and impeller 4 and exhaust volute 5 relative positions; In the screw hole that on impeller 4 wheel hubs, has machined with screw-driving import air guide sleeve 9 is fixedly mounted on the wheel hub of impeller 4, connects by the bolt between the front side plate 6 of import honeycomb duct 7 and exhaust volute 5 afterwards import honeycomb duct 7 is fixed on the exhaust volute 5; With bolt protective net 8 is installed on the import honeycomb duct 7 at last, to prevent that ventilator from when moving, having foreign material to be inhaled into the damage that causes blower fan in the blower fan.
Claims (2)
1. a high full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller comprises motor (1), impeller (4), exhaust volute (5), awl arc import honeycomb duct (7), import air guide sleeve (9); It is characterized in that the back side panel (3) of exhaust volute (5) and motor (1) are fixed on the support (2), the projecting shaft of motor (1) stretches in the exhaust volute (4) by the aperture on the exhaust volute (5); Impeller (4) enters into exhaust volute (5) by the macropore on the front side plate (6) of exhaust volute (5); The wheel hub of impeller (4) is enclosed within on the projecting shaft of the motor (1) that stretches in the exhaust volute (5), and motor (1) projecting shaft is fixed on the wheel hub of impeller (4) foremost; Import air guide sleeve (9) is fixedly mounted on the wheel hub of impeller (4), by the connection between the front side plate (6) of import honeycomb duct (7) and exhaust volute (5) import honeycomb duct (7) is fixed on the exhaust volute (5);
Impeller (4) adopts oblique wheeling disk structure, and wheel disc and motor shaft are in the central shaft out of plumb, and impeller (4) wheel hub is adorned cone-shaped inlet air guide sleeve (9); Exhaust volute (5) adopts the log spiral type.
2. a kind of high full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller according to claim 1 is characterized in that, impeller (4) adopts 36 circular arc linear leafs.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201864662U CN201723463U (en) | 2010-05-11 | 2010-05-11 | High-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201864662U CN201723463U (en) | 2010-05-11 | 2010-05-11 | High-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201723463U true CN201723463U (en) | 2011-01-26 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201864662U Expired - Lifetime CN201723463U (en) | 2010-05-11 | 2010-05-11 | High-total-pressure large-flow-rate inclined-wheel-disc forwards-bending-impeller centrifugal ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201723463U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818740A (en) * | 2010-05-11 | 2010-09-01 | 大连理工大学 | High full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller |
| CN104675728A (en) * | 2015-03-09 | 2015-06-03 | 黎雅伟 | Low-noise fan |
| CN118008852A (en) * | 2024-02-04 | 2024-05-10 | 广东肇庆德通有限公司 | Volute centrifugal ventilator device |
-
2010
- 2010-05-11 CN CN2010201864662U patent/CN201723463U/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101818740A (en) * | 2010-05-11 | 2010-09-01 | 大连理工大学 | High full-voltage large-flow centrifugal blower with slant-wheel disk front-bent impeller |
| CN104675728A (en) * | 2015-03-09 | 2015-06-03 | 黎雅伟 | Low-noise fan |
| CN118008852A (en) * | 2024-02-04 | 2024-05-10 | 广东肇庆德通有限公司 | Volute centrifugal ventilator device |
| CN118008852B (en) * | 2024-02-04 | 2024-09-10 | 广东肇庆德通有限公司 | Volute centrifugal ventilator device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20110126 Effective date of abandoning: 20120104 |