CN102251985A - Box-type centrifugal fan - Google Patents
Box-type centrifugal fan Download PDFInfo
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- CN102251985A CN102251985A CN2011102219607A CN201110221960A CN102251985A CN 102251985 A CN102251985 A CN 102251985A CN 2011102219607 A CN2011102219607 A CN 2011102219607A CN 201110221960 A CN201110221960 A CN 201110221960A CN 102251985 A CN102251985 A CN 102251985A
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- box
- type centrifugal
- centrifugal blower
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- blade
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Abstract
The invention relates to a box-type centrifugal fan which comprises a motor and an impellor which is connected to an output shaft of the motor; the impellor comprises a rear plate, a guide flow plate and a plurality of blades which are fixedly arranged between the rear plate and the guide flow plate; the blades are arc blades, and comprise rear parts which are close to the center of rotation of the impellor and front parts which are close to the wheel flange of the impellor; the blades extend from the rear parts to the front parts, and the radian of the arc blades increases gradually; the impellor is arranged in a box body which is provided with an air inlet and an air outlet; the air inlet is corresponding to the surface of the impellor; and the air outlet is close to the edge of the impellor. Because the arc blades are adopted for the centrifugal fan provided by the invention, the pressure and air inlet flow are increased, the impact to the blades by the air flow is reduced greatly, the air flow field is more uniform and smooth, thus the noise is reduced, and the air quantity is increased.
Description
Technical field
The present invention relates to a kind of centrifugal blower, specifically, relate to a kind of centrifugal fan with casing.
Background technique
The blower fan that present domestic every profession and trade adopts still is an axial-flow blower mainly, and its shortcoming is that noise is big, air quantity is little, static pressure is low, can not adapt to big air quantity, the application of high pressure, and the blower fan overall structure does not satisfy requirement of client.
Summary of the invention
The purpose of this invention is to provide the box-type centrifugal blower that a kind of air quantity is big, noise is little, static pressure is high.
For achieving the above object, the technical solution used in the present invention is:
A kind of box-type centrifugal blower, comprise motor, be connected the impeller on the output shaft of described motor, described impeller comprises back plate, guide plate, is fixedly installed on the multi-disc blade between described back plate and the described guide plate, described blade is the arc shaped blade with arc outlet air surface, it comprises the front portion near the rear portion of the gyration center of described impeller, close described wheel rim, to described anterior the extension, the radian of described arc shaped blade increases described blade gradually by described rear portion;
Described impeller is arranged in the casing, and described casing has intake grill, exhaust outlet, and described intake grill is corresponding with the wheel face of described impeller, and described exhaust outlet is near the wheel rim of described impeller.
Preferably, described guide plate is horn-like, and it comprises first port and second port, and the sectional area of described first port is greater than the sectional area of described second port, and described vanes fixed is connected described first port.
Preferably, described intake grill place is provided with slip ring, its by described casing outward in the described casing direction comprise outer end, middle-end, the inner successively, the sectional area of setting described outer end is that the sectional area of S1, described middle-end is S2, the sectional area of described the inner is S3, S1＞S3＞S2.
Preferably, described back plate is a surface plate.
Preferably, the wheel rim place of the close described impeller of a side that is connected with described guide plate of described blade has salient angle.
Preferably, the described casing side of being body, described side's body has first, and described intake grill is arranged on described first, and described exhaust outlet is arranged on perpendicular on any one or several in four described first faces.
Preferably, described motor is arranged at the outside of described casing, and its output shaft stretches in the described casing, and described casing outer fixing is provided with support, and described motor is arranged on the described support.
Preferably, the radian increment rate at described rear portion is less than the radian increment rate of described front portion.
Preferably, described blade welds fixing with described guide plate, described blade and described back plate mutually.
Because the technique scheme utilization, the present invention compared with prior art has following advantage: because the present invention adopts arc shaped blade, increased pressure and air inflow, and reduced the impact of air-flow greatly to blade, make airflow field more evenly smooth and easy, thereby reduced noise, increased air quantity.
Description of drawings
Accompanying drawing 1 is the side view of box-type centrifugal blower of the present invention.
Accompanying drawing 2 is the axonometric drawing of box-type centrifugal blower of the present invention.
Accompanying drawing 3 is the axonometric drawing of the impeller of box-type centrifugal blower of the present invention.
Accompanying drawing 4 is the axonometric drawing of the blade of box-type centrifugal blower of the present invention.
In the above accompanying drawing: 1, motor; 2, casing; 3, impeller; 4, intake grill; 5, exhaust outlet; 6, support; 7, slip ring; 8, back plate; 9, guide plate; 10, blade; 11, salient angle; 12, arc outlet air surface.
Embodiment
Below in conjunction with embodiment shown in the drawings the present invention is further described.
Embodiment one: shown in accompanying drawing 1 and accompanying drawing 2.
A kind of casing 2 formula centrifugal blowers comprise motor 1, casing 2, are arranged in the casing 2 and are connected impeller 3 on the output shaft of motor 1.Casing 2 side's of being bodies, it has first, and first face is provided with intake grill 4, is provided with exhaust outlet 5 perpendicular to any one or several face in four faces of first.Motor 1 is arranged at the outside of casing 2, and its output shaft stretches in the casing 2, and casing 2 outer fixing are provided with support 6, and motor 1 is arranged on the support 6.
Intake grill 4 places are provided with slip ring 7, and it is by comprising outer end, middle-end, the inner successively to casing 2 interior directions outside the casing 2, and the sectional area of setting the outer end is that the sectional area of S1, middle-end is S2, and inner sectional area is S3, S1＞S3＞S2.
Referring to accompanying drawing 3 to shown in the accompanying drawing 4.Impeller 3 comprises back plate 8, guide plate 9, is fixedly installed on the multi-disc blade 10 between back plate 8 and the guide plate 9.Blade 10 is for having the arc shaped blade of arc outlet air surface 12, it comprises the front portion near the rear portion of the gyration center of impeller 3, close impeller 3 wheel rims, blade 10 is extended to the front portion by the rear portion, and the radian of arc shaped blade 10 increases gradually, and the radian increment rate at rear portion is less than the radian increment rate of front portion.
Intake grill 4 is corresponding with the wheel face of impeller 3, and exhaust outlet 5 is near the wheel rim of impeller 3.When air-flow entered casing 2 by intake grill 4, owing to be subjected to the guide functions of slip ring 7, air-flow can evenly flow to the wheel face of impeller 3.
Compare with traditional centrifugal blower, the pressure coefficient of above-mentioned box-type centrifugal blower and flow coefficient are all bigger, whole centrifugal blower compact structure, and stability has better reached the requirement that air quantity is big, pressure is high, noise is little, meets the customer equipment designing requirement.
The foregoing description only is explanation technical conceive of the present invention and characteristics, and its purpose is to allow the personage who is familiar with this technology can understand content of the present invention and enforcement according to this, can not limit protection scope of the present invention with this.All equivalences that spirit is done according to the present invention change or modify, and all should be encompassed within protection scope of the present invention.
Claims (9)
1. box-type centrifugal blower, comprise motor, be connected the impeller on the output shaft of described motor, described impeller comprises back plate, guide plate, is fixedly installed on the multi-disc blade between described back plate and the described guide plate, it is characterized in that: described blade is the arc shaped blade with arc outlet air surface, it comprises the front portion near the rear portion of the gyration center of described impeller, close described wheel rim, to described anterior the extension, the radian of described arc shaped blade increases described blade gradually by described rear portion;
Described impeller is arranged in the casing, and described casing has intake grill, exhaust outlet, and described intake grill is corresponding with the wheel face of described impeller, and described exhaust outlet is near the wheel rim of described impeller.
2. box-type centrifugal blower according to claim 1, it is characterized in that: described guide plate is horn-like, it comprises first port and second port, the sectional area of described first port is greater than the sectional area of described second port, and described vanes fixed is connected described first port.
3. box-type centrifugal blower according to claim 1, it is characterized in that: described intake grill place is provided with slip ring, its by described casing outward in the described casing direction comprise outer end, middle-end, the inner successively, the sectional area of setting described outer end is that the sectional area of S1, described middle-end is S2, the sectional area of described the inner is S3, S1＞S3＞S2.
4. box-type centrifugal blower according to claim 1 is characterized in that: described back plate is a surface plate.
5. box-type centrifugal blower according to claim 1 is characterized in that: the wheel rim place of the close described impeller of a side that is connected with described guide plate of described blade has salient angle.
6. box-type centrifugal blower according to claim 1, it is characterized in that: the described casing side of being body, described side's body has first, described intake grill is arranged on described first, and described exhaust outlet is arranged on perpendicular on any one or several in four described first faces.
7. box-type centrifugal blower according to claim 1, it is characterized in that: described motor is arranged at the outside of described casing, its output shaft stretches in the described casing, and described casing outer fixing is provided with support, and described motor is arranged on the described support.
8. box-type centrifugal blower according to claim 1 is characterized in that: the radian increment rate at described rear portion is less than the radian increment rate of described front portion.
9. box-type centrifugal blower according to claim 1 is characterized in that: described blade welds fixing with described guide plate, described blade and described back plate mutually.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221960 CN102251985B (en) | 2011-08-04 | 2011-08-04 | Box-type centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110221960 CN102251985B (en) | 2011-08-04 | 2011-08-04 | Box-type centrifugal fan |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102251985A true CN102251985A (en) | 2011-11-23 |
| CN102251985B CN102251985B (en) | 2013-05-08 |
Family
ID=44979478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110221960 Expired - Fee Related CN102251985B (en) | 2011-08-04 | 2011-08-04 | Box-type centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102251985B (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829534A (en) * | 2012-08-10 | 2012-12-19 | 上海瑞屋节能科技有限公司 | Air port static pressure device |
| CN104929977A (en) * | 2015-04-30 | 2015-09-23 | 广东美的制冷设备有限公司 | Centrifugal wind wheel |
| CN105402143A (en) * | 2014-09-08 | 2016-03-16 | 雷勃美国公司 | Electrical machine and method of assembling same |
| CN109737080A (en) * | 2019-02-19 | 2019-05-10 | 苏州众志新环冷却设备有限公司 | A kind of Air Exhaust Heat Dissipating Double-fuselage |
| CN110357326A (en) * | 2019-07-18 | 2019-10-22 | 华北水利水电大学 | Drinking water sterilizes dechlorination high-efficiency environment friendly water treatment system |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673545A (en) * | 2016-03-30 | 2016-06-15 | 中国矿业大学 | Industrial fan impeller capable of changing air flow |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058942U (en) * | 1990-01-12 | 1990-07-04 | 中国科学院成都有机化学研究所 | Low-noise impeller for centrifuge fan |
| CN2303957Y (en) * | 1997-01-17 | 1999-01-13 | 东北电力科学研究院 | Collector-regulatable centrifugal fan |
| DE102004010457B3 (en) * | 2004-03-01 | 2005-07-14 | "Aura" Herbert D. Stolle Gmbh & Co | Propeller fan with shell propeller for blowing air has each blade in form of shell bowl extending longitudinally |
| CN1873230A (en) * | 2005-06-02 | 2006-12-06 | 本田技研工业株式会社 | Multi-blade fan for air-cooled engine |
| CN2921388Y (en) * | 2006-06-05 | 2007-07-11 | 陈启洲 | Wing wheel structure improvement for rear tilting blower |
| CN201916252U (en) * | 2010-12-27 | 2011-08-03 | 广东肇庆德通有限公司 | Centrifugal fan with double air outlets |
| CN202194860U (en) * | 2011-08-04 | 2012-04-18 | 张家港施亿百机电设备有限公司 | Box type centrifugal fan |
-
2011
- 2011-08-04 CN CN 201110221960 patent/CN102251985B/en not_active Expired - Fee Related
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2058942U (en) * | 1990-01-12 | 1990-07-04 | 中国科学院成都有机化学研究所 | Low-noise impeller for centrifuge fan |
| CN2303957Y (en) * | 1997-01-17 | 1999-01-13 | 东北电力科学研究院 | Collector-regulatable centrifugal fan |
| DE102004010457B3 (en) * | 2004-03-01 | 2005-07-14 | "Aura" Herbert D. Stolle Gmbh & Co | Propeller fan with shell propeller for blowing air has each blade in form of shell bowl extending longitudinally |
| CN1873230A (en) * | 2005-06-02 | 2006-12-06 | 本田技研工业株式会社 | Multi-blade fan for air-cooled engine |
| CN2921388Y (en) * | 2006-06-05 | 2007-07-11 | 陈启洲 | Wing wheel structure improvement for rear tilting blower |
| CN201916252U (en) * | 2010-12-27 | 2011-08-03 | 广东肇庆德通有限公司 | Centrifugal fan with double air outlets |
| CN202194860U (en) * | 2011-08-04 | 2012-04-18 | 张家港施亿百机电设备有限公司 | Box type centrifugal fan |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102829534A (en) * | 2012-08-10 | 2012-12-19 | 上海瑞屋节能科技有限公司 | Air port static pressure device |
| CN105402143A (en) * | 2014-09-08 | 2016-03-16 | 雷勃美国公司 | Electrical machine and method of assembling same |
| CN105402143B (en) * | 2014-09-08 | 2019-06-28 | 雷勃美国公司 | Motor and its assemble method |
| CN104929977A (en) * | 2015-04-30 | 2015-09-23 | 广东美的制冷设备有限公司 | Centrifugal wind wheel |
| CN109737080A (en) * | 2019-02-19 | 2019-05-10 | 苏州众志新环冷却设备有限公司 | A kind of Air Exhaust Heat Dissipating Double-fuselage |
| CN110357326A (en) * | 2019-07-18 | 2019-10-22 | 华北水利水电大学 | Drinking water sterilizes dechlorination high-efficiency environment friendly water treatment system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102251985B (en) | 2013-05-08 |
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Owner name: ZHANGJIAGANG ANRUIGE ELECTROMECHANICAL DEVICE CO., Free format text: FORMER OWNER: ZHANGJIAGANG SHIYIBAI ELECTROMECHANICAL EQUIPMENT CO., LTD. Effective date: 20140813 |
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Free format text: CORRECT: ADDRESS; FROM: 215627 SUZHOU, JIANGSU PROVINCE TO: 215617 SUZHOU, JIANGSU PROVINCE |
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| TR01 | Transfer of patent right |
Effective date of registration: 20140813 Address after: Suzhou City, Jiangsu province 215617 Zhangjiagang Yang Dongnae East Electric Avenue Patentee after: Zhangjiagang smart Mechanical & Electrical Equipment Co., Ltd. Address before: Suzhou City, Jiangsu province 215627 Zhangjiagang Dongrong town seven road Patentee before: Zhangjiagang Shiyibai Electromechanical Equipment Co., Ltd. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130508 Termination date: 20150804 |
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| EXPY | Termination of patent right or utility model |