CN203335438U - Electric locomotive machine room ventilator - Google Patents
Electric locomotive machine room ventilator Download PDFInfo
- Publication number
- CN203335438U CN203335438U CN2013204076316U CN201320407631U CN203335438U CN 203335438 U CN203335438 U CN 203335438U CN 2013204076316 U CN2013204076316 U CN 2013204076316U CN 201320407631 U CN201320407631 U CN 201320407631U CN 203335438 U CN203335438 U CN 203335438U
- Authority
- CN
- China
- Prior art keywords
- air duct
- ventilator
- impeller
- machine room
- blade
- 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 - Fee Related
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- 230000003137 locomotive effect Effects 0.000 title claims abstract description 18
- 238000001816 cooling Methods 0.000 claims abstract description 4
- 238000010276 construction Methods 0.000 claims description 3
- 239000000463 material Substances 0.000 abstract description 5
- 238000005457 optimization Methods 0.000 abstract description 4
- 229910000831 Steel Inorganic materials 0.000 abstract description 3
- 239000010959 steel Substances 0.000 abstract description 3
- 239000000428 dust Substances 0.000 abstract description 2
- 238000009423 ventilation Methods 0.000 abstract 2
- 239000000498 cooling water Substances 0.000 abstract 1
- 238000009434 installation Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000003517 fume Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000003068 static effect Effects 0.000 description 2
- 238000004378 air conditioning Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to an electric locomotive machine room ventilator. The electric locomotive machine room ventilator comprises an air inlet duct, a rear air-guiding cylinder, an impeller and an electric motor. The impeller is an arc slab multi-wing forward direction centrifugal impeller, a front disc of the impeller is of a flat and straight structure, and blades are forward direction flat board arc blades. In the situation that the size of the impeller is limited, the electric locomotive machine room ventilator enables an air flow field to be further optimized, and ventilator flow pressure is improved. The electric locomotive machine room ventilator is arranged on a ventilation cabinet of a machine room, cooling air enters the ventilator from an air duct and is pressurized by the ventilator impeller, and the cooling water flows through the machine room ventilation cabinet and a cyclone dust collector, and enters the machine room. Steel materials with high quality are adopted by the ventilator, enough rigidity and strength of the steel materials can be guaranteed, material cost is saved, and vibration of the ventilator is reduced. Due to the good pneumatic performance of the multi-wing type impeller blades of the electric locomotive machine room ventilator and the space optimization configuration, the rear guide vane optimization design is implemented to ensure that the air flow noise of the ventilator reaches the minimum level. The electric locomotive machine room ventilator is simple and compact in structure, convenient to install, small in size, large in flow and low in noise.
Description
Technical field
The utility model relates to a kind of electric locomotive machine room ventilator, and it is a kind of for the axial centrifugal blower of export-oriented (area, South Africa) locomotive machine room multiple-airfoil type, belongs to field of fluid machinery.
Background technique
According to the air-conditioning requirement of electric locomotive machine room, blower fan is flow 2m
3/ s, static pressure is 850Pa, and sound output is less than 93dBA, and weight is less than 108Kg.According to obtaining high efficiency, low noise principle, this kind of blower fan selected the axial fan pattern of impeller+rear guide vane usually.Because ventilator institute's duty chamber in machine room in locomotive and weight require limitedly, restriction air duct diameter design size can not be greater than 536mm, so adopt the axial fan structure, compressor flow and pressure are difficult to meet the above-mentioned parameter requirement.
Summary of the invention
The purpose of this utility model is to overcome deficiency and the defect of existing blower fan technology, provides a kind of simple and compact for structure, easy for installation, and size is little, and flow is large, the electric locomotive machine room ventilator of low noise.
The technical solution of the utility model: a kind of electric locomotive machine room ventilator, comprise air inlet duct, air duct assembly, impeller and motor, it is characterized in that described this ventilator adopts as circular arc plate multiple-airfoil type forward centrifugal blade wheel structure, impeller is to be combined by front wheel disc, blade, core wheel and rear trochal disc, front wheel disc in impeller is flat construction, and the blade in impeller is the dull and stereotyped curved blade of forward direction;
Described air duct assembly is comprised of outer air duct, barge board, interior air duct, rear guide vane, stiffening rib and square flange; Distance between interior air duct in the air duct assembly and rear trochal disc is 27.5mm, between interior air duct and outer air duct, by rear guide vane, be connected, the rear guide vane number is 11, the outer air duct of barge board distance left side 39.5mm, the outer air duct of square flange distance right side 25mm, stiffening rib is uniformly distributed on square flange;
Described motor is installed on the interior air duct mounting plate of air duct assembly by bolt, in interior air duct, support block is set, and makes it support interior air duct; The barrel of interior air duct is provided with four for motor radiating and cooling U-shaped hole;
Axial clearance between described air inlet duct and front wheel disc is 5mm, and the circular gap between the barge board in front wheel disc and air duct assembly is 4mm.The number of blade in impeller is 32.
Of the present utility model focusing on: adopted circular arc plate multiple-airfoil type forward centrifugal impeller to add the rear guide vane technology, the forward centrifugal impeller can make blower fan obtain the small diameter impeller, but efficiency is lower, for making air velocity distribution, further optimize, adopt rear guide vane to improve fan outlet static pressure and efficiency.Ventilator has adopted circular arc plate multiple-airfoil type forward centrifugal blade wheel structure, and blade all adopts the dull and stereotyped curved blade of forward direction, by selecting rational blade outlet angle, make the sound power level of blower fan lower than 93dBA, and vibration velocity is lower than 2.8mm/s.Fan motor is arranged in the interior air duct of air duct assembling, motor and interior air duct are fixed by 4 hex head bolts, 4 support blocks are set to support inner core, to improve the motor rigidity in interior air duct, reduce fan vibration, the rear guide vane now joined with inner core also plays the effect of supporting inner core.Air duct is assembled into inside and outside air duct, barge board, rear guide vane, square flange and stiffening rib and is welded, and all adopts steel plate Q235A material, saves cost of material, guarantees the blower fan bulk strength.Impeller is selected circular arc plate multiple-airfoil type forward centrifugal impeller, for front wheel disc, blade, core wheel, rear trochal disc are welded, in small-sized ventilator Multivane impeller with its large flow coefficient, high pressure coefficient, small size coefficient and obtain extensive use.The excellent aeroperformance of Multivane impeller blade, in air inlet duct, impeller, air duct assembling in the configuration of barge board spatial optimization and air duct assembling between inside and outside air duct the stator optimized design reach floor level to guarantee the fan airflow noise.This ventilator structure is simply compact, and easy for installation, size is little, and flow is large, low noise.
The accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
Embodiment
With reference to figure 1, a kind of electric locomotive machine room ventilator, comprise air inlet duct 1, air duct assembly, impeller and motor 14, it is characterized in that this ventilator adopts as circular arc plate multiple-airfoil type forward centrifugal blade wheel structure, impeller is to be combined by front wheel disc 4, blade 5, core wheel 6 and rear trochal disc 7; Front wheel disc 4 in impeller is flat construction, and the blade 5 in impeller is the dull and stereotyped curved blade of forward direction;
Described air duct assembly is comprised of outer air duct 2, barge board 3, interior air duct 9, rear guide vane 11, stiffening rib 12 and square flange 13; Distance between interior air duct 9 in the air duct assembly and rear trochal disc 7 is 27.5mm, between interior air duct 9 and outer air duct 2, by rear guide vane 11, be connected, the rear guide vane number is 11, the outer air duct 2 left side 39.5mm of barge board 3 distance, the outer air duct 2 right side 25mm of square flange 13 distance, stiffening rib 12 is uniformly distributed on square flange 13; Stiffening rib 12 quantity of air duct assembly are 8.
Described motor 14 is installed on by bolt on the interior air duct mounting plate 8 of air duct assembly, and the interior support block 10 that arranges of interior air duct 9 makes it support interior air duct 9; The barrel of interior air duct 9 is provided with four for motor radiating and cooling U-shaped hole; Support block on interior air duct (10) quantity is 4;
Axial clearance between described air inlet duct 1 and front wheel disc 4 is 5mm, and the circular gap between the barge board 3 in front wheel disc 4 and air duct assembly is 4mm.The blade quantity of the blade 5 in impeller is 32.
This ventilator is arranged on the Fume hood of locomotive machine room, and cooling-air enters from wind venetian blind and fan air channel.Cooling-air is by the pressurization of machine room draught fan impeller, and the machine room Fume hood of flowing through, and process cyclone dust collector, enter machine room.
The utility model is due to the excellent aeroperformance of Multivane impeller blade, and the barge board spatial optimization configuration in air inlet duct, impeller, air duct assembly and the rear guide vane optimized design between the inside and outside air duct in the air duct assembly reach floor level to guarantee the fan airflow noise.This ventilator structure is simply compact, and easy for installation, size is little, and flow is large, low noise.
Claims (2)
1. an electric locomotive machine room ventilator, comprise air inlet duct (1), air duct assembly, impeller and motor (14), it is characterized in that:
Described this ventilator is adopted as circular arc plate multiple-airfoil type forward centrifugal blade wheel structure, impeller is to be combined by front wheel disc (4), blade (5), core wheel (6) and rear trochal disc (7), front wheel disc (4) in this impeller is flat construction, and the blade in impeller is the dull and stereotyped curved blade of forward direction;
Blade in impeller (5) is the dull and stereotyped curved blade of forward direction;
Described air duct assembly is comprised of outer air duct (2), barge board (3), interior air duct (9), rear guide vane (11), stiffening rib (12) and square flange (13);
Distance between interior air duct (9) in described air duct assembly and rear trochal disc (7) is 27.5mm, between interior air duct (9) and outer air duct (2), by rear guide vane (11), be connected, the rear guide vane number is 11, barge board (3) distance outer air duct (2) left side 39.5mm, square flange (13) distance outer air duct (2) right side 25mm, stiffening rib (12) is uniformly distributed on square flange (13);
The interior air duct mounting plate (8) that described motor (14) is installed on the air duct assembly by bolt is upper, and support block (10) is set in interior air duct (9), makes it support interior air duct (9); The barrel of interior air duct (9) is provided with four for motor radiating and cooling U-shaped hole;
Axial clearance between described air inlet duct (1) and front wheel disc (4) is 5mm, and the circular gap between the barge board (3) in front wheel disc (4) and air duct assembly is 4mm.
2. a kind of electric locomotive as claimed in claim 1 machine room ventilator, is characterized in that the number of blade of the blade (5) in described impeller is 32.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204076316U CN203335438U (en) | 2013-07-10 | 2013-07-10 | Electric locomotive machine room ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013204076316U CN203335438U (en) | 2013-07-10 | 2013-07-10 | Electric locomotive machine room ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203335438U true CN203335438U (en) | 2013-12-11 |
Family
ID=49704115
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2013204076316U Expired - Fee Related CN203335438U (en) | 2013-07-10 | 2013-07-10 | Electric locomotive machine room ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203335438U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673557A (en) * | 2016-04-08 | 2016-06-15 | 石家庄嘉祥精密机械有限公司 | Centrifugal fan device of large-discharge-capacity oilless air compressor of rail transit and mounting method thereof |
-
2013
- 2013-07-10 CN CN2013204076316U patent/CN203335438U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105673557A (en) * | 2016-04-08 | 2016-06-15 | 石家庄嘉祥精密机械有限公司 | Centrifugal fan device of large-discharge-capacity oilless air compressor of rail transit and mounting method thereof |
| CN105673557B (en) * | 2016-04-08 | 2018-11-27 | 石家庄嘉祥精密机械有限公司 | The centrifugal fan device and installation method of rail traffic huge discharge oilless air compressor |
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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: 20131211 |
|
| CX01 | Expiry of patent term | ||
| CU01 | Correction of utility model |
Correction item: Termination upon expiration of patent Correct: Revocation of Patent Expiration and Termination False: On July 28, 2023, the expiration and termination of the 39-volume 3002 patent Number: 30-02 Volume: 39 |
|
| CU01 | Correction of utility model | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131211 |