CN203756593U - High-efficient centrifugal wind wheel - Google Patents
High-efficient centrifugal wind wheel Download PDFInfo
- Publication number
- CN203756593U CN203756593U CN201320886552.8U CN201320886552U CN203756593U CN 203756593 U CN203756593 U CN 203756593U CN 201320886552 U CN201320886552 U CN 201320886552U CN 203756593 U CN203756593 U CN 203756593U
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- blade
- wind wheel
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- blades
- shroud
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- 230000007704 transition Effects 0.000 claims description 4
- 230000035939 shock Effects 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 5
- 230000002093 peripheral effect Effects 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 1
- 235000019994 cava Nutrition 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Abstract
The utility model relates to a high-efficient centrifugal wind wheel which comprises a front plate, a rear plate and a plurality of arc-shaped blades arranged between the front plate and the rear plate, wherein the cross sections of the arc-shaped blades are of airfoil shape; the arc-shaped blades are uniformly distributed along the peripheral direction of the front plate; the thickness at the inlet ends of the blades are more than the thickness at the outlet ends; the width at the inlet ends of the blades are more than the width at the outlet ends; each of the inlet ends of the blades is composed of a section of convex arc surface and an inclined surface tangent to the arc surface; a section of sunk arc-shaped transitional surface is arranged between one side of each of the outlet ends of the blades and the arc surface; an outlet angle of each of the blades is at 30-40 degree. The high-efficient centrifugal wind wheel provided by the utility model has the advantages that the noise during the running process of the wind wheel is effectively reduced, the loss of the wind wheel is effectively reduced, the flow and the pressure are higher, the airflow shock is effectively reduced and the efficiency of the wind wheel is increased.
Description
Technical field
The utility model relates to a kind of centrifugal blower, especially a kind of efficient centrifugal wind wheel being arranged in centrifugal blower.
Background technique
Centrifugal wind wheel, be arranged on the impeller in centrifugal blower, its outside is provided with mechanical cover, impeller center is suction port, when impeller rotates under power equipment drives, air is sucked from suction port, simultaneously in wheel rotation process to gas exerts dynamic action, the pressure and the speed that improve gas, gas is discharged from relief opening along Ye road between impeller Leaf under the effect of centrifugal force.CN 201547015U, discloses a kind of low-noise centrifugal wind wheel, and it comprises shroud, chassis and blade; Described blade inlet edge is straight line shape or arc shape or is comprised of multistage arc shape; Blade trailing edge, in axial being projected as arc shape or being comprised of multistage arc, is arc in radially projecting, and arc caves in to wind wheel rotating center.The problem existing is, during wind wheel rotation gas shock larger, wind wheel loss is serious, wind wheel efficiency is lower.
Model utility content
Purpose of design: avoid the deficiency in background technique, design a kind ofly when reducing noise, reduce wind wheel loss, improve the efficient centrifugal wind wheel of wind wheel efficiency.
Design proposal: in order to realize above-mentioned purpose of design.1, the cross section of arc shaped blade is aerofoil profile, and blade outlet angle is 30 °～40 °, is first technical characteristics of the present utility model.The object of design is like this, arc shaped blade is located between shroud and hub disk, because blade profile is aerofoil profile, and blade outlet angle is between 30 °～40 °, simultaneously because wind wheel entrance point diameter and outlet end diameter are than between 0.69～0.7, wind wheel loss be can effectively reduce, wind wheel flow and pressure improved.2, blade entrance point width is greater than outlet end width, and blade entrance point thickness is greater than outlet end thickness, is second technical characteristics of the present utility model.The object of design is like this, blade entrance point width is arranged to larger than outlet end width, and blade entrance point thickness is greater than outlet end thickness, not only relax the impact of gas shock power on blade, improved wind wheel efficiency, also extended the working life of blade, cost-saving, reduce maintenance rate.3, blade entrance point forms by the arc surface of one section of evagination with the tangent plane of inclination of arc surface, is the 3rd technical characteristics of the present utility model.The object of design is like this, the arc surface of blade entrance point and scarf combining structure, and blade exit end is plane simultaneously, has not only improved wind wheel pressure, the noise while also greatly reducing wind wheel rotation simultaneously.4, shroud end face is orthodrome transitional surface structure, is the 4th technical characteristics of the present utility model.The object of design is that shroud end face is made as orthodrome transition face-type structural, and the blade entrance point place depression arc transiting surface adjacent with outer convex arc surface like this, be stuck in the arc-shaped transitional surface place of shroud, not only improve the steadiness of blade, and effectively reduced gas shock, improve wind wheel efficiency.
Technological scheme: a kind of efficient centrifugal wind wheel, it comprises shroud, hub disk, is located at a plurality of arc shaped blades between shroud and hub disk; Arc shaped blade cross section is aerofoil profile, and a plurality of blade is along the uniform arrangement of shroud circumferencial direction; Blade entrance point thickness is greater than outlet end thickness, and blade entrance point width is greater than outlet end width; Blade entrance point forms by one section of outer convex arc surface with the tangent plane of inclination of arc surface, and between blade exit end one side and arc surface, is provided with the arc transiting surface of one section of depression; Blade outlet angle is 30 °～40 °.
The utility model is compared with background technique, and the one, the noise while effectively reducing wind wheel running; The 2nd, effectively reduce wind wheel loss, there is higher flow and pressure, effectively reduce gas shock, improve wind wheel efficiency.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further.
Accompanying drawing 1 is the perspective view of the utility model efficient centrifugal wind wheel.
Accompanying drawing 2 is the plan view of accompanying drawing 1.
Accompanying drawing 3 is the left view of accompanying drawing 2.
Accompanying drawing 4 be in accompanying drawing 2 A to sectional structure schematic diagram.
Accompanying drawing 5 be in accompanying drawing 3 B to sectional structure schematic diagram.
Accompanying drawing 6 is the perspective view of the utility model efficient centrifugal wind wheel Leaf.
Accompanying drawing 7 is the plan view of accompanying drawing 6.
Accompanying drawing 8 is the sectional structure schematic diagram at C place in accompanying drawing 7.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
With reference to accompanying drawing 1-8.An efficient centrifugal wind wheel, it comprises shroud 1, hub disk 2, iron ring 3 and a plurality of blade 4; Described blade 4 is seven, and is all located between shroud 1 and hub disk 2; Described arc shaped blade 4 cross sections are aerofoil profile, and seven blades 4 are along the uniform arrangement of shroud 1 circumferencial direction; Described blade 4 entrance points form by one section of outer convex arc surface 41 with the tangent plane of inclination 40 of arc surface 41; Between described blade 4 outlet end one sides and arc surface 41, be provided with the arc transiting surface 42 of one section of depression; Described shroud 1 outer end opening is orthodrome transition type structure, front end 1 outer end opening end inner side is arc-shaped transitional surface 10, arc transiting surface 42 on blade 4 can be stuck in arc-shaped transitional surface 10 places of shroud 1 outer end on the one hand, also orthodrome transition type structure has also effectively reduced gas shock on the other hand, improves wind wheel efficiency; Described blade 4 entrance point thickness are greater than outlet end thickness; Described blade 4 entrance point maximum ga(u)ges are positioned at apart from blade 4 entrance point leading edge 20%～25% positions; Described blade 4 entrance point width are greater than outlet end width; Described blade 4 entrance point width are 1.3～1.4 times of blade 4 outlet end width; Described blade 4 exit angles are 30 °～40 °; In described shroud 1, suction port diameter is 0.69～0.7 times of air outlet diameter.
It is to be understood that: although above-described embodiment is to the mentality of designing of the present utility model detailed text description of contrasting; but these text descriptions; just the simple text of the utility model mentality of designing is described; rather than the restriction to the utility model mentality of designing; any combination, increase or modification that does not exceed the utility model mentality of designing, all falls in protection domain of the present utility model.
Claims (4)
1. an efficient centrifugal wind wheel, comprise shroud (1), hub disk (2), be located at a plurality of arc shaped blades (4) between shroud (1) and hub disk (2), it is characterized in that: arc shaped blade (4) cross section is aerofoil profile, and a plurality of blade (4) is along the uniform arrangement of shroud (1) circumferencial direction; Blade (4) entrance point thickness is greater than outlet end thickness, and blade (4) entrance point width is greater than outlet end width; Blade (4) entrance point forms by one section of outer convex arc surface (41) with the tangent plane of inclination (40) of arc surface (41), and between blade (4) outlet end one side and arc surface (41), is provided with the arc transiting surface (42) of one section of depression; Blade (4) exit angle is 30 °～40 °.
2. efficient centrifugal wind wheel according to claim 1, is characterized in that: blade (4) entrance point maximum ga(u)ge is positioned at apart from blade (4) leading edge 20%～25% position.
3. efficient centrifugal wind wheel according to claim 1 and 2, is characterized in that: blade (4) entrance point width is 1.3～1.4 times of blade (4) outlet end width.
4. efficient centrifugal wind wheel according to claim 3, is characterized in that: shroud (1) outer end opening is orthodrome transition type structure, and the middle suction port diameter of shroud (1) is 0.69～0.7 times of air outlet diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886552.8U CN203756593U (en) | 2013-12-31 | 2013-12-31 | High-efficient centrifugal wind wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320886552.8U CN203756593U (en) | 2013-12-31 | 2013-12-31 | High-efficient centrifugal wind wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203756593U true CN203756593U (en) | 2014-08-06 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320886552.8U Expired - Lifetime CN203756593U (en) | 2013-12-31 | 2013-12-31 | High-efficient centrifugal wind wheel |
Country Status (1)
| Country | Link |
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| CN (1) | CN203756593U (en) |
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806569A (en) * | 2015-04-23 | 2015-07-29 | 杭州微光电子股份有限公司 | High-static-pressure backward centrifugal 225 high-efficiency wind wheel |
| CN107339255A (en) * | 2017-08-31 | 2017-11-10 | 广东美的制冷设备有限公司 | Two-way air intake wind wheel and ceiling machine |
| JP2018053804A (en) * | 2016-09-29 | 2018-04-05 | 日本電産テクノモータ株式会社 | Air blower |
| CN108131324A (en) * | 2018-01-15 | 2018-06-08 | 汕头大学 | A kind of small-sized multi-wing centrifugal exhaust fan of highly effective low noise and impeller |
| CN109707666A (en) * | 2019-03-13 | 2019-05-03 | 河北华晟环保设备科技有限公司 | Super high power type draught fan impeller |
| CN110206753A (en) * | 2018-06-29 | 2019-09-06 | 华帝股份有限公司 | Centrifugal wind wheel for range hood |
| CN110630532A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Centrifugal heat dissipation device and water pump all-in-one machine comprising same |
| CN112253536A (en) * | 2020-10-30 | 2021-01-22 | 浙江科贸智能机电股份有限公司 | Centrifugal impeller and ventilator thereof |
| CN113357534A (en) * | 2021-06-08 | 2021-09-07 | 江苏互竑生物医学有限公司 | Oxygen supercharging device for medical oxygenerator |
| US11898576B2 (en) | 2020-02-29 | 2024-02-13 | Huawei Digital Power Technologies Co., Ltd. | Centrifugal fan and air conditioning apparatus |
-
2013
- 2013-12-31 CN CN201320886552.8U patent/CN203756593U/en not_active Expired - Lifetime
Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104806569A (en) * | 2015-04-23 | 2015-07-29 | 杭州微光电子股份有限公司 | High-static-pressure backward centrifugal 225 high-efficiency wind wheel |
| JP2018053804A (en) * | 2016-09-29 | 2018-04-05 | 日本電産テクノモータ株式会社 | Air blower |
| CN107339255A (en) * | 2017-08-31 | 2017-11-10 | 广东美的制冷设备有限公司 | Two-way air intake wind wheel and ceiling machine |
| CN107339255B (en) * | 2017-08-31 | 2023-09-01 | 广东美的制冷设备有限公司 | Bidirectional air inlet wind wheel and ceiling machine |
| CN108131324A (en) * | 2018-01-15 | 2018-06-08 | 汕头大学 | A kind of small-sized multi-wing centrifugal exhaust fan of highly effective low noise and impeller |
| CN110206753A (en) * | 2018-06-29 | 2019-09-06 | 华帝股份有限公司 | Centrifugal wind wheel for range hood |
| CN109707666A (en) * | 2019-03-13 | 2019-05-03 | 河北华晟环保设备科技有限公司 | Super high power type draught fan impeller |
| CN109707666B (en) * | 2019-03-13 | 2021-07-27 | 河北华晟环保设备科技有限公司 | Super-high power type fan impeller |
| CN110630532A (en) * | 2019-09-17 | 2019-12-31 | 科比传动技术（上海）有限公司 | Centrifugal heat dissipation device and water pump all-in-one machine comprising same |
| US11898576B2 (en) | 2020-02-29 | 2024-02-13 | Huawei Digital Power Technologies Co., Ltd. | Centrifugal fan and air conditioning apparatus |
| CN112253536A (en) * | 2020-10-30 | 2021-01-22 | 浙江科贸智能机电股份有限公司 | Centrifugal impeller and ventilator thereof |
| CN113357534A (en) * | 2021-06-08 | 2021-09-07 | 江苏互竑生物医学有限公司 | Oxygen supercharging device for medical oxygenerator |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140806 |
|
| CX01 | Expiry of patent term |