CN201284761Y - Axial flow type high pressure ventilator for locomotive - Google Patents
Axial flow type high pressure ventilator for locomotive Download PDFInfo
- Publication number
- CN201284761Y CN201284761Y CNU2008202183276U CN200820218327U CN201284761Y CN 201284761 Y CN201284761 Y CN 201284761Y CN U2008202183276 U CNU2008202183276 U CN U2008202183276U CN 200820218327 U CN200820218327 U CN 200820218327U CN 201284761 Y CN201284761 Y CN 201284761Y
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- impeller
- motor
- cowling
- blades
- axial flow
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Abstract
The utility model relates to axial flow type high-pressure ventilator for locomotives. A flange of a motor is connected with an inner flanged edge of the top end of an inner barrel by bolts, and radial connecting screw rods are uniformly distributed between an outer case of the motor and the inner barrel. An impeller is connected with the shaft end of the motor through a shaft sleeve, and upper and lower sides of blades of the impeller are respectively provided with front flow guide blades and rear flow guide blades. A cowling is arranged at the top of a hub of the impeller. The cowling in the shape of a semicircle or a streamline forms a smooth gradually-reduced flow passage with an inlet wind barrel in the shape of a circular arc. The impeller is integrally cast from a hub and blades by aluminum alloy. The blades of the impeller are torsional wing type blades. The front flow guide blades and the rear flow guide blades are all steel plates in the shape of circular arcs. Compared with similar products, the flow quantity of the ventilator can be 45000<3>/h, the air pressure is increased by about 150Pa, and the total length of the fan is reduced by about 400mm. The utility model can well satisfy the requirements on cooling systems of ventilators under certain working condition.
Description
Technical field
The utility model relates to a kind of locomotive with novel axial flow high pressure ventilator, belongs to the heat transfer technology field.
Background technique
Locomotive is in the process of running under power, and its inside has a lot of vitals to need cooling system to cool off, the ventilator ventilation equipment that are absolutely necessary.But the vibration that produces during locomotive operation and impact very greatly, and the inner installing space of locomotive is very limited, thereby cooling system requires height to the requirement of ventilator than the ventilator the general work environment under.Along with the fast development of China railways industry pulling equipment, the motion speed and the power level of locomotive improve constantly, and locomotive is also more and more higher to the performance requirement of cooling fan.Facts have proved: existing general service ventilator and mine all can not satisfy the performance requirement of ventilator on the locomotive with ventilator.The novel ventilated machine of design method redesign routinely, under the situation that satisfies flow and pressure, the consumed power of ventilator is also relative with volume very big, can not satisfy usage requirement and the structural requirement of locomotive to ventilator in the cooling system.
Summary of the invention
The purpose of this utility model is to overcome deficiency in the prior art, and a kind of locomotive axial flow high pressure ventilator is provided.Under the situation that this novel ventilated machine can be less in size, working speed is certain, provide bigger flow and higher pressure, can satisfy the specific abominable working environment of locomotive simultaneously again and install and use requirement, and have higher working life.
This locomotive axial flow high pressure ventilator, comprise inducer, impeller, urceolus, inner core and be arranged on the motor of inner core, it is characterized in that: the flange of motor is connected by bolt with in-flanges as the inner core top of motor cabinet, be provided with uniform radially connecting screw rod between motor housing and the inner core, impeller is connected with motor shaft end by axle sleeve, the blade of impeller both sides up and down is respectively equipped with pre-turning vane sheet and back guide vane, be provided with cowling in the inducer, also cowling can be placed on the impeller hub top.
Cowling is hemisphere or streamline, and the import air duct at urceolus top is a circular arc, and cowling and import air duct have formed smooth convergent shape runner.
Impeller adopts the aluminum alloy cast inblock to form by wheel hub and blade, and the blade of impeller is the circular arc type steel plate for distortion wing blade blade profile, pre-turning vane sheet and back guide vane.
This locomotive of the present utility model axial flow high pressure ventilator, its inducer is made up of cowling, pre-turning vane sheet and circular arc type import air duct.The air duct section is made up of motor, urceolus, inner core and back guide vane.Motor is arranged in the air duct section, and the in-flanges of its flange with the inner core top is connected with bolt, is provided with uniform radially connecting screw rod between motor housing and the inner core, and such Placement is firmly stable, can reduce the vibration of motor.
Locomotive of the present utility model is made up of pre-turning vane sheet, impeller and back guide vane with axial flow high pressure ventilator, has formed a complete single-stage ventilator, and the characteristics of this form are the pressure height.Calculate, analyze and test through science, the torsional angle and the chord length of rational match selection blade, and according to the parameters such as torsional angle of blade, reasonably inlet/outlet angle, length and the quantity of the forward and backward guide vane of match selection have improved the aeroperformance of ventilator so widely.The ventilator inducer adopts hemisphere or streamline cowling, can improve ventilator pressure and efficient; Adopt circular arc import air duct, can improve the flow of ventilator.Cowling and circular arc type import air duct have formed smooth convergent shape runner, have reduced the loss of Fan Inlet.Fan impeller adopts the aluminum alloy cast inblock to form by the blade of wheel hub and some.Need not weld between the wheel hub of impeller and the blade, also not have bolt to connect, therefore can not occur welding or the assembly type impeller often snaps or the fault of bolt looseness, inspection and maintenance is easy, good reliability.This structure can satisfy abominable working environment of locomotive and installation requirement, has higher working life.The quantity of blade requires to select according to the difference of equipped motorcycle cooling system cooling power to the ventilator parameter.
Locomotive of the present utility model axial flow high pressure ventilator, compared with prior art its beneficial technical effects is: verify as calculated and experimental test that with the like product contrast of same diameter, same rotational speed, flow rate of fan of the present utility model can reach 45000m
3/ h, its air pressure increases about 150Pa, and the blower fan total length reduces about 400mm.Can satisfy locomotive requirement to the cooling system ventilator under special operating conditions better.
Locomotive of the present utility model also can be inverted with the overall structure of axial flow high pressure ventilator, be that motor is placed on the top, motor bottom-up, be provided with the pre-turning vane sheet in the side of motor, the motor below connects impeller, the impeller below is provided with the back guide vane, and the back guide vane also can be set.
Description of drawings
Fig. 1 is a locomotive axial flow high pressure ventilator structure schematic representation.
Fig. 2 is the plan view of Fig. 1.
Embodiment
Now in conjunction with the accompanying drawings the utility model is further described: with reference to Fig. 1 Fig. 2, locomotive is made up of motor 11, impeller 4, axle sleeve 5, inducer, air duct section with axial flow high pressure ventilator.Its inducer is made up of cowling 1, pre-turning vane sheet 2 and import air duct 3, and import air duct 3 is the circular arc shaped portion at urceolus 7 tops.The air duct section is made up of motor 11, urceolus 7, back guide vane 8 and inner core 9, motor 11 is arranged in the inner core, its flange is connected with the in-flanges 6 usefulness bolts on inner core 9 tops, and on motor housing, motor 11 and inner core 9 are coupled together with 4 screw rods 10, such Placement is firmly stable, can reduce the vibration of motor.The diameter of impeller 4 is in 500mm～1000mm scope, and blade quantity is in 6～24 scopes.The blade of impeller 4 adopts distortion wing blade blade profile, and each cross section chord length b of blade increases gradually from blade tip to blade root in 100mm～300mm scope, and each cross section torsional angle θ increases gradually from blade tip to blade root in 20 °～52 ° scopes.Impeller 4 is connected with motor 11 axle heads by axle sleeve 5.Pre-turning vane sheet 2, back guide vane 8 are the circular arc type steel plate.
Claims (4)
1 one kinds of locomotive axial flow high pressure ventilators, comprise inducer, impeller (4), urceolus (7), inner core (9) and be arranged on the motor (11) of inner core, it is characterized in that: the flange of motor (11) is connected by bolt with in-flanges (6) as inner core (9) top of motor cabinet, be provided with uniform radially connecting screw rod (10) between motor housing and the inner core (9), impeller (4) is connected with motor (11) axle head by axle sleeve (5), the blade of impeller both sides up and down is respectively equipped with pre-turning vane sheet (2) and back guide vane (8), be provided with cowling (1) in the inducer, also cowling (1) can be placed on impeller (4) wheel hub top.
2 locomotives according to claim 1 axial flow high pressure ventilator, it is characterized in that: cowling (1) is hemisphere or streamline, the import air duct (3) at urceolus (7) top is a circular arc, and cowling (1) and import air duct (3) have formed smooth convergent shape runner.
3 locomotives according to claim 1 axial flow high pressure ventilator, it is characterized in that: impeller (4) adopts the aluminum alloy cast inblock to form by wheel hub and blade, the blade of impeller is distortion wing blade blade profile, and pre-turning vane sheet (2) and back guide vane (8) are the circular arc type steel plate.
4 locomotives according to claim 1 axial flow high pressure ventilator, it is characterized in that: overall structure also can be inverted, be that motor is placed on the top, motor bottom-up, be provided with the pre-turning vane sheet in the side of motor, the motor below connects impeller, and the impeller below is provided with the back guide vane, and the back guide vane also can be set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202183276U CN201284761Y (en) | 2008-09-29 | 2008-09-29 | Axial flow type high pressure ventilator for locomotive |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008202183276U CN201284761Y (en) | 2008-09-29 | 2008-09-29 | Axial flow type high pressure ventilator for locomotive |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284761Y true CN201284761Y (en) | 2009-08-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008202183276U Expired - Lifetime CN201284761Y (en) | 2008-09-29 | 2008-09-29 | Axial flow type high pressure ventilator for locomotive |
Country Status (1)
| Country | Link |
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| CN (1) | CN201284761Y (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963157A (en) * | 2010-09-30 | 2011-02-02 | 大连理工大学 | High total pressure large-flow wheel disk side beveling type back-ward impeller fan |
| CN102072177A (en) * | 2011-02-28 | 2011-05-25 | 昆山兆年涂装科技有限责任公司 | Exhaust fan |
| CN102734227A (en) * | 2012-06-21 | 2012-10-17 | 中国北车集团大连机车研究所有限公司 | Ventilator for electric locomotive |
| 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 |
| CN105351249A (en) * | 2015-11-27 | 2016-02-24 | 湖南中通电气股份有限公司 | Fan propeller for silicone element heat dissipation of electric locomotive |
| CN106089767A (en) * | 2016-07-25 | 2016-11-09 | 中车大连机车车辆有限公司 | Locomotive is with big flow lightweight propeller fan |
| WO2021022895A1 (en) * | 2019-08-02 | 2021-02-11 | 珠海格力电器股份有限公司 | Mixed-flow fan and air conditioner |
-
2008
- 2008-09-29 CN CNU2008202183276U patent/CN201284761Y/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101963157A (en) * | 2010-09-30 | 2011-02-02 | 大连理工大学 | High total pressure large-flow wheel disk side beveling type back-ward impeller fan |
| CN101963157B (en) * | 2010-09-30 | 2011-12-14 | 大连理工大学 | High total pressure large-flow wheel disk side beveling type back-ward impeller fan |
| CN102072177A (en) * | 2011-02-28 | 2011-05-25 | 昆山兆年涂装科技有限责任公司 | Exhaust fan |
| CN102734227A (en) * | 2012-06-21 | 2012-10-17 | 中国北车集团大连机车研究所有限公司 | Ventilator for electric locomotive |
| 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 |
| CN105351249A (en) * | 2015-11-27 | 2016-02-24 | 湖南中通电气股份有限公司 | Fan propeller for silicone element heat dissipation of electric locomotive |
| CN106089767A (en) * | 2016-07-25 | 2016-11-09 | 中车大连机车车辆有限公司 | Locomotive is with big flow lightweight propeller fan |
| WO2021022895A1 (en) * | 2019-08-02 | 2021-02-11 | 珠海格力电器股份有限公司 | Mixed-flow fan and air conditioner |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Dalian Zhongtie Heat-Exchanging Technology Co., Ltd. Assignor: CNR Dalian Locomotive Research Institute Co., Ltd. Contract fulfillment period: 2009.10.19 to 2015.10.19 Contract record no.: 2009210000264 Denomination of utility model: Axial flow type high pressure ventilator for locomotive Granted publication date: 20090805 License type: Exclusive license Record date: 20091103 |
|
| LIC | Patent licence contract for exploitation submitted for record |
Free format text: EXCLUSIVE LICENSE; TIME LIMIT OF IMPLEMENTING CONTACT: 2009.10.19 TO 2015.10.19; CHANGE OF CONTRACT Name of requester: DALIAN CHINA RAILWAY HEAT EXCHANGER TECHNOLOGY CO. Effective date: 20091103 |
|
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090805 |