CN2630539Y - Front-back subway axial-flow ventilator equipped with curved combined blade - Google Patents
Front-back subway axial-flow ventilator equipped with curved combined blade Download PDFInfo
- Publication number
- CN2630539Y CN2630539Y CN 03258170 CN03258170U CN2630539Y CN 2630539 Y CN2630539 Y CN 2630539Y CN 03258170 CN03258170 CN 03258170 CN 03258170 U CN03258170 U CN 03258170U CN 2630539 Y CN2630539 Y CN 2630539Y
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- blade
- blower
- oriented
- subway
- plunderring
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Abstract
The utility model relates to a positive-oriented and counter-oriented subway axle ventilator with a bending compound blade. The structure is characterized in that: the outgoing axle of the motor is connected with a blade wheel of a blower through a key or a coupler, the motor drives the blade wheel to move, while the different rotating direction of the motor realizes the positive-oriented and counter-oriented ventilation of the current blower. The blade of the blade wheel on the axial flowing blower is bending and compound; wherein, the front bending angle is formed from 10 degrees to 20 degrees and the front grazing angle is formed from 5 degrees to 15 degrees. The blower of positive-oriented and counter-oriented subway axle ventilation with bending compound blade can remarkably improve the pneumatic performance and acoustic performance. Compared with the current axle ventilation blower, the full pressure efficiency is increased by 4%-15%, and the pneumatic noise is decreased by 4-10dB(A). Therefore, the operating area for the blower is expanded, and the utility model can be widely applied to the air changing and aeration-cooling occasions for subway, road tunnel, rail tunnel and architecture. If further anti-corrosion and anti-explosion treatments are performed, the utility model can be used for the air changing and cooling at such working occasions as coal mine, petrochemical and other places.
Description
Technical field
The utility model belongs to forward and reverse subway propeller fan, particularly relates to a kind of curved forward and reverse subway propeller fan of plunderring combined blade that is equipped with.
Background technique
At present, domestic known forward and reverse subway propeller fan, since simple in structure, easy to manufacture, therefore be widely used in the ventilation of occasions such as subway, vcehicular tunnel, railway tunnel and building and the cooling of ventilating.In this known ventilator, the impeller blade of employing is conventional prismatic blade form, i.e. the type heart in each cross section from the blade root to the blade tip, and on same straight line, and the direction of this straight line is consistent with the diametric(al) of fan impeller.This straight-vaned forward and reverse subway propeller fan is housed, its total pressure efficiency is low, the more high aeroperformance of aerodynamic noise is all not very good.This mainly is because straight-vaned shape is unreasonable, thereby causes the efficient of complete machine lower, then can waste electric energy; The higher noise that then can increase its working environment of noise, and bring interference for people's work, rest.
Summary of the invention
The utility model provides a kind of curved forward and reverse subway propeller fan of plunderring combined blade that is equipped with for solving the technical problem that exists in the known technology.
The technological scheme that the utility model is taked for the technical problem that exists in the solution known technology is:
A kind of being equipped with bent forward and reverse subway propeller fan of plunderring combined blade, it mainly is made of institutes such as motor, fan casing, draught fan impeller, impeller blade and cowlings, it is characterized in that: the impeller blade of blower fan is the curved combined blade of plunderring, and curved kyphotic angle of plunderring combined blade is that 10 °～20 °, sweepforward angle are 5 °～15 °; The curved type heart of plunderring each cross section of combined blade is a straight line, and this straight line is not in the diametric(al) of draught fan impeller.
The utility model can also adopt following technical measures:
The described curved type heart of plunderring each cross section of combined blade is a curve, and this curve is not also in the diametric(al) of draught fan impeller.
Advantage and the good effect that the utlity model has are: will bend and plunder combined blade and introduce in the general structure design of forward and reverse subway propeller fan.Because the curved type heart of plunderring each cross section of combined blade is straight line or curve, and not in the diametric(al) of draught fan impeller.Curved forward and reverse subway propeller fan of plunderring combined blade is housed, can improve the aeroperformance and the acoustical behavior of this ventilator significantly, compare with the straight-vaned propeller fan of routine, curved total pressure efficiency raising 4%～15%, aerodynamic noise of plunderring forward and reverse subway propeller fan of combined blade is housed reduces by 4～10dB (A).And make the aeroperformance of this blower fan better, thereby expanded the operation area of this blower fan.After this blower fan is carried out anticorrosion and explosion-proof processing again, also can be used on the ventilation and the cooling in special operation places such as colliery, petrochemical industry.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is curved combined blade schematic representation of plunderring of the embodiment one;
Fig. 3 is the schematic top plan view in each cross section of Fig. 2;
Fig. 4 is curved combined blade schematic representation of plunderring of the embodiment two;
Fig. 5 is the schematic top plan view in each cross section of Fig. 4.
Embodiment
For further understanding summary of the invention of the present utility model, characteristics and effect, exemplify following examples now, and conjunction with figs. is described in detail as follows:
See also Fig. 1, the shaft of motor 1 is by key or coupling and draught fan impeller 3 connections, draught fan impeller 3 is connected by the wheel hub of clamping bolt and impeller blade 4, a flow blower casing 2 is fixed by dunnage in periphery at impeller blade 4, a rectifier 5 is installed in the outer end of draught fan impeller 3, forms a forward and reverse subway propeller fan; Motor 1 drives draught fan impeller 3 and rotates, and the different rotary direction of motor 1 realizes the positive reverse ventilation of blower fan.
Fig. 2 and Fig. 3 are curved combined blades 4 of plunderring of the embodiment one, and " bending " named in each section type heart of blade bending in plane of rotation, and being " antecurvature ", kyphotic angle to the bending of impeller sense of rotation opposite direction is 10 °～20 °; Each section type heart of blade is crooked in vertical plane of rotation to cry " plunderring ", and meeting the airflow direction bending, to cry " sweepforward ", sweepforward angle be 5 °～15 °.Curved each cross section of plunderring combined blade 4 shown in Figure 2: I-I, II-II ..., VII-VII, Fig. 3 corresponds to respectively for the downward projection in each cross section of Fig. 2: I-I, II-II ..., VII-VII, the type heart in its each cross section is a straight line, and this straight line is not in the diametric(al) of draught fan impeller 3.
Fig. 4 and Fig. 5 are curved combined blade 4 of plunderring of the embodiment two, and be identical with embodiment one, and its kyphotic angle is 10 °～20 °, and its sweepforward angle is 5 °～1 5 °.Curved each cross section of plunderring combined blade 4 shown in Figure 4: I-I, II-II ..., VII-VII, Fig. 5 corresponds to respectively for the downward projection in each cross section of Fig. 4: I-I, II-II ..., VII-VII, the type heart in its each cross section is a curve, and this curve is not also in the diametric(al) of draught fan impeller 3.
Claims (2)
1. one kind is equipped with curved forward and reverse subway propeller fan of plunderring combined blade, it mainly is made of institutes such as motor, fan casing, draught fan impeller, impeller blade and cowlings, it is characterized in that: the impeller blade of blower fan (4) is the curved combined blade of plunderring, and curved kyphotic angle of plunderring combined blade is that 10 °～20 °, sweepforward angle are 5 °～15 °; The curved type heart of plunderring each cross section of combined blade is a straight line, and this straight line is not in the diametric(al) of draught fan impeller (3).
2. according to claim 1 curved forward and reverse subway propeller fan of plunderring combined blade is housed, it is characterized in that: the described curved type heart of plunderring each cross section of combined blade is a curve, and this curve is not also in the diametric(al) of draught fan impeller (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258170 CN2630539Y (en) | 2003-07-31 | 2003-07-31 | Front-back subway axial-flow ventilator equipped with curved combined blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 03258170 CN2630539Y (en) | 2003-07-31 | 2003-07-31 | Front-back subway axial-flow ventilator equipped with curved combined blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2630539Y true CN2630539Y (en) | 2004-08-04 |
Family
ID=34295694
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 03258170 Expired - Fee Related CN2630539Y (en) | 2003-07-31 | 2003-07-31 | Front-back subway axial-flow ventilator equipped with curved combined blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2630539Y (en) |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102235381A (en) * | 2011-06-28 | 2011-11-09 | 北京动力机械研究所 | Fan with bending-sweep stator blade |
| CN1904355B (en) * | 2005-07-29 | 2012-08-15 | 通用电气公司 | Methods and apparatus for producing wind energy with reduced wind turbine noise |
| CN104791301A (en) * | 2015-04-02 | 2015-07-22 | 佛山市南海九洲普惠风机有限公司 | Swept-curved aluminum alloy axial flow blade |
| CN105065302A (en) * | 2015-08-06 | 2015-11-18 | 浙江上风高科专风实业有限公司 | Efficient sweepforward-type subway tunnel axial flow fan |
| CN114046263A (en) * | 2021-12-01 | 2022-02-15 | 江苏优格曼航空科技有限公司 | Sweepback combined orthogonal axial flow fan capable of automatically removing dust |
-
2003
- 2003-07-31 CN CN 03258170 patent/CN2630539Y/en not_active Expired - Fee Related
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1904355B (en) * | 2005-07-29 | 2012-08-15 | 通用电气公司 | Methods and apparatus for producing wind energy with reduced wind turbine noise |
| CN102235381A (en) * | 2011-06-28 | 2011-11-09 | 北京动力机械研究所 | Fan with bending-sweep stator blade |
| CN104791301A (en) * | 2015-04-02 | 2015-07-22 | 佛山市南海九洲普惠风机有限公司 | Swept-curved aluminum alloy axial flow blade |
| CN104791301B (en) * | 2015-04-02 | 2017-12-15 | 佛山市南海九洲普惠风机有限公司 | One kind is curved to plunder aluminium alloy axial blade |
| CN105065302A (en) * | 2015-08-06 | 2015-11-18 | 浙江上风高科专风实业有限公司 | Efficient sweepforward-type subway tunnel axial flow fan |
| CN105065302B (en) * | 2015-08-06 | 2018-01-16 | 浙江上风高科专风实业有限公司 | A kind of efficiently sweepforward type subway tunnel axial flow blower |
| CN114046263A (en) * | 2021-12-01 | 2022-02-15 | 江苏优格曼航空科技有限公司 | Sweepback combined orthogonal axial flow fan capable of automatically removing dust |
| CN114046263B (en) * | 2021-12-01 | 2023-06-23 | 江苏优格曼航空科技有限公司 | Bending and sweeping combined orthogonal axial fan capable of automatically removing dust |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |