CN201916253U - Ventilation cabinet fan for electric locomotive - Google Patents
Ventilation cabinet fan for electric locomotive Download PDFInfo
- Publication number
- CN201916253U CN201916253U CN2010206837267U CN201020683726U CN201916253U CN 201916253 U CN201916253 U CN 201916253U CN 2010206837267 U CN2010206837267 U CN 2010206837267U CN 201020683726 U CN201020683726 U CN 201020683726U CN 201916253 U CN201916253 U CN 201916253U
- Authority
- CN
- China
- Prior art keywords
- impeller
- blade
- fan
- air duct
- motor
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
Images
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a ventilation cabinet fan for an electric locomotive, which comprises an air inlet tube, an impeller, a motor and an air tube assembly. The ventilation cabinet fan is an axial centrifugal fan. The air tube assembly is formed by welding a mounting flange, a reinforcing rib and an air tube; the air tube is a square structure. The impeller comprises a front wheel disc, a blade, a wheel core and a rear wheel disc, and a backward flat circular arc blade is adopted to serve as the blade. A centrifugal fan impeller and square air tube technology is adopted by the fan, and an airflow field is optimized under the condition that the dimensions of the impeller are limited, so that the flow pressure of the fan is increased; a backward centrifugal impeller structure is adopted to serve as the impeller, the backward flat circular arc blade is adopted to serve as the blade, and a reasonable blade outlet angle is selected, therefore, the acoustical power level of the fan is lower than 103dBA, and the vibration speed is less than 2.8mm/S. A front end cover of the motor is fixed on the mounting flange through bolts, and a rear end cover of the motor is connected with the reinforcing rib through a connecting plate, accordingly, the rigidity of the motor is improved, the vibration of the fan is reduced and the airflow noise of the fan is ensured to reach the lowest level.
Description
Technical field
The utility model relates to a kind of use for electric locomotive Fume hood blower fan, and it is a kind of AC blower fan.
Background technique
According to electric locomotive Fume hood cooling requirement, compressor flow is 1.65m3/s, and static pressure is 1000Pa, and sound output is less than 103dBA, and weight is less than 100Kg.According to traditional fan design, existing blower fan is selected the axial-flow blower pattern of impeller+rear guide vane usually for use, because Fume hood blower fan space and weight limits, impeller diameter limited size system during design, can not be greater than 450mm, by existing ventilator structure, compressor flow and pressure are difficult to satisfy the requirement of above-mentioned parameter.
Summary of the invention
The purpose of this utility model is to overcome the deficiency and the defective of prior art, provides a kind of simple and compact for structure, easy for installation, in light weight, the use for electric locomotive Fume hood blower fan of low noise.
The technical solution of the utility model: a kind of use for electric locomotive Fume hood blower fan, comprise impeller, motor, casing, connecting plate for electric motor and air duct assembly, it is characterized in that described this Fume hood blower fan is the AC blower fan, air duct assembly in the blower fan is to comprise air duct, mounting flange, stiffening rib and casing, be that air duct is to be arranged in the casing by mounting flange and stiffening rib, this air duct is square air duct structure.
Described impeller be the back to the receded disk impeller structure, impeller is made up of preceding wheel disc, blade, core wheel and rear trochal disc, this blade adopts back to dull and stereotyped curved blade.
The front portion of described motor is installed on the mounting flange in the air duct assembly by bolt, and the afterbody of motor connects by connecting plate for electric motor and is connected with stiffening rib.
Axial distance between the stiffening rib in the described air duct assembly and the rear trochal disc of impeller is 34-38mm, and optimum distance is 36mm, and the stiffening rib quantity in the air duct assembly is 4, and the blade blade quantity in the described impeller is 9.
The technological points of this blower fan is walked: adopted centrifugal fan impeller to add square air duct technology, under the limited situation of impeller size, air velocity distribution is further optimized, improved compressor flow pressure, blower fan has adopted back to the receded disk impeller structure, and blade all adopts the back to dull and stereotyped curved blade, and selects rational blade outlet angle for use, make the sound power level of blower fan be lower than 103dBA, and vibration velocity is lower than 2.8mm/s.Fan motor is installed on the interior mounting flange of air duct assembling, and by 4 bolt, the motor afterbody is connected with stiffening rib by connecting plate, has improved the rigidity of motor greatly, has reduced the vibration of blower fan up and down.The air duct assembly is that air duct, mounting flange, casing and stiffening rib are welded, and all adopts aluminum alloy material, has guaranteed that the overall weight of blower fan is less.Impeller has been selected for use back to receded disk impeller, for preceding wheel disc, blade, core wheel, rear trochal disc are welded, and the pressure coefficient height, easily manufactured.Because the excellent aeroperformance of impeller blade, the optimized design of the distance of stiffening rib has guaranteed that the fan airflow noise reaches floor level in the intake grill of air duct, impeller, the configuration of air duct component feature space optimization and impeller blade trailing edge and the air duct assembling.
Description of drawings
Accompanying drawing is a structural representation of the present utility model;
Among the figure: 1-air duct, wheel disc before the 2-impeller, 3-, 4-blade, 5-core wheel, 6-rear trochal disc, 7-mounting flange, 8-stiffening rib, 9-motor, 10-casing, 11-connecting plate for electric motor, 12-air duct assembly.
Embodiment
Referring to accompanying drawing, a kind of use for electric locomotive Fume hood blower fan, comprise impeller 2, motor 9, casing 10, connecting plate for electric motor 11 and air duct assembly 12, this Fume hood blower fan is the AC blower fan, air duct assembly 12 in the blower fan is to comprise air duct 1, mounting flange 7, stiffening rib 8 and casing 10, be that air duct 1 is to be arranged in the casing 10 by mounting flange 7 and stiffening rib 8, this air duct 1 is square air duct structure;
Described impeller 2 be the back to the receded disk impeller structure, impeller 2 is made up of preceding wheel disc 3, blade 4, core wheel 5 and rear trochal disc 6, this blade 4 adopts back to dull and stereotyped curved blade;
The front portion of described motor 9 is installed on the mounting flange in the air duct assembly 12 by bolt, and the afterbody of motor 9 connects by connecting plate for electric motor 11 and is connected with stiffening rib 8.Axial distance between the rear trochal disc 6 of stiffening rib in the air duct assembly 12 (8) and impeller is 36mm, and stiffening rib 8 quantity in the air duct assembly 12 are 4, and the blade quantity of the blade 4 in the described impeller 2 is 9.
This Fume hood blower fan is owing to the excellent aeroperformance of impeller blade 4, and the optimized design of the distance of stiffening rib 8 has guaranteed that the pneumatic noise of blower fan reaches floor level in the intake grill of air duct 1, impeller 2, the configuration of air duct assembly 12 spatial optimizations and impeller blade trailing edge 4 and the air duct assembly 12.
Claims (1)
1. a use for electric locomotive Fume hood blower fan comprises impeller (2), motor (9), casing (10), connecting plate for electric motor (11) and air duct assembly (12), it is characterized in that:
A, described this Fume hood blower fan are the AC blower fan, air duct assembly (12) in the blower fan is to comprise air duct (1), mounting flange (7), stiffening rib (8) and casing (10), be that air duct (1) is to be arranged in the casing (10) by mounting flange (7) and stiffening rib (8), this air duct (1) is square air duct structure;
B, described impeller (2) be the back to the receded disk impeller structure, impeller (2) is made up of preceding wheel disc (3), blade (4), core wheel (5) and rear trochal disc (6), this blade (4) employing is back to dull and stereotyped curved blade;
The front portion of C, described motor (9) is installed on the interior mounting flange of air duct assembly (12) by bolt, and the afterbody of motor (9) connects by connecting plate for electric motor (11) and is connected with stiffening rib (8).
2 a kind of use for electric locomotive Fume hood blower fans as claimed in claim 1, it is characterized in that the axial distance between the rear trochal disc (6) of stiffening rib (8) in the described air duct assembly (12) and impeller is 34-38mm, optimum distance is 36mm, stiffening rib (8) quantity in the air duct assembly (12) is 4, and blade (4) blade quantity in the described impeller (2) is 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206837267U CN201916253U (en) | 2010-12-28 | 2010-12-28 | Ventilation cabinet fan for electric locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206837267U CN201916253U (en) | 2010-12-28 | 2010-12-28 | Ventilation cabinet fan for electric locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201916253U true CN201916253U (en) | 2011-08-03 |
Family
ID=44416050
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206837267U Expired - Lifetime CN201916253U (en) | 2010-12-28 | 2010-12-28 | Ventilation cabinet fan for electric locomotive |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201916253U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989812A (en) * | 2017-12-14 | 2018-05-04 | 株洲联诚集团控股股份有限公司 | A kind of heavy duty detergent axial-centrifugal fan |
| CN108278222A (en) * | 2018-01-11 | 2018-07-13 | 袁芳革 | Fume chamber exhaust fan |
-
2010
- 2010-12-28 CN CN2010206837267U patent/CN201916253U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107989812A (en) * | 2017-12-14 | 2018-05-04 | 株洲联诚集团控股股份有限公司 | A kind of heavy duty detergent axial-centrifugal fan |
| CN108278222A (en) * | 2018-01-11 | 2018-07-13 | 袁芳革 | Fume chamber exhaust fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN201100246Y (en) | An axis circulation wind engine for power engine | |
| CN201443527U (en) | Energy-saving silencing centrifugal fan | |
| CN203130611U (en) | Outer circulation fan for wind driven generator cooler | |
| CN201786695U (en) | Centrifugal axial-flow fan | |
| CN101975188B (en) | Centrifugal fan impeller for automobile air conditioning | |
| CN201916253U (en) | Ventilation cabinet fan for electric locomotive | |
| CN201953717U (en) | Cooling ventilator for traction motor of engineering maintenance vehicle | |
| CN202579350U (en) | Mixed-flow fire-fighting smoke discharge ventilator | |
| CN101586572A (en) | Energy-saving muffling centrifugal fan | |
| CN203362556U (en) | Cooling fan for 220T electric-wheel mine dump truck | |
| CN203257701U (en) | Centrifugal inclined type axial flow fan | |
| CN202468477U (en) | Axial flow fan (in machine room) for electric locomotives | |
| CN201322006Y (en) | Axial-flow fan for electric locomotive inverter | |
| CN202176545U (en) | Electric automobile air conditioning centrifugal fan | |
| CN202707622U (en) | Double source system electric locomotive traction fan | |
| CN201386671Y (en) | Axial flow type induction fan | |
| CN203081811U (en) | Traction fan for high-power internal combustion locomotive | |
| CN206129652U (en) | High efficiency low noise centrifugal fan | |
| CN202531484U (en) | Two-stage axial flow ventilation fan | |
| CN203335438U (en) | Electric locomotive machine room ventilator | |
| CN208294810U (en) | A kind of motor train traction cooling blower | |
| CN203009334U (en) | Internal recycling centrifugal fan for cooler of wind-driven generator | |
| CN202203140U (en) | Double-air-outlet type traction fan for motor train unit | |
| CN207111517U (en) | A kind of high pressure force coefficient EMUs draw blower fan | |
| CN103016369A (en) | Novel axial-flow fan with small-aspect-ratio blades having obliquely-cut and twisted blade roots |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110803 |
|
| CX01 | Expiry of patent term |