CN205101247U - Oblique flow ventilation blower - Google Patents
Oblique flow ventilation blower Download PDFInfo
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- CN205101247U CN205101247U CN201520859767.XU CN201520859767U CN205101247U CN 205101247 U CN205101247 U CN 205101247U CN 201520859767 U CN201520859767 U CN 201520859767U CN 205101247 U CN205101247 U CN 205101247U
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Abstract
The utility model provides an oblique flow ventilation blower, support a section of thick bamboo, motor, oblique flow impeller, wind -guiding ring sum return air device including dryer, motor, the motor shaft to set up in in the dryer, the motor supports a section of thick bamboo and locates the output shaft one end of motor and with the inner wall fixed connection of dryer, the oblique flow impeller with the output shaft of motor, the wind -guiding ring is located the axial rear end of oblique flow impeller with and with the dryer is connected, return air device ring is located the motor outside and with the motor supports a section of thick bamboo and reaches the dryer is connected, the return air device with there is the radial clearance that can supply gas flow between the motor, makes backward flow gas hug closely motor surface flow takes away the heat, plays the radiating effect. The utility model provides an oblique flow ventilation blower's eddy current loss is little, and the radiating efficiency is high, to the support intensity of motor big and vibrate little, requirement that high wind pressure, high efficiency and the axial that can satisfy high speed train traction were carried.
Description
Technical field
The utility model relates to fluid conveying machine technical field, particularly, relates to a kind of Mixed flow Fan being applicable to bullet train traction electric machine.
Background technique
Ventilation equipment are widely used in the fields such as national defence, chemical industry, track traffic, and because the difference of Environmental Conditions is mainly divided three classes: axial fan, centrifugal fan and mixed flow fan.Wherein, the vent flow of axial fan is large and installation volume is little, but its transmitting power is not enough, causes working efficiency lower; The feature that blast is large although centrifugal fan has, working efficiency is high, because feed flow is less and can not realize axially transport and limit the scope of its application; And tubular centrifugal blower is as the one of mixed flow fan, although combine the certain advantages of said two devices, because air-flow needs repeatedly to alter course at blower interior, and the bending angle of gas flow is large, easily cause eddy current loss serious, there is the shortcoming of blower fan work inefficiency.In order to meet the requirement of traction electric machine on bullet train, therefore to select a kind of can axially transport high blast, high efficiency, low loss mixed flow fan.
In prior art, patent CN201420239021 discloses a kind of diagonal flow fan, it comprises front case and rear case, motor, impeller, stator and the stator cylinder of circular cone tubular, major diameter one end of front case and rear case forms Olive Shape shell by Flange joint, stator cylinder to be arranged in rear case and motor support to be arranged at stator cylinder inner, between rear case with stator cylinder, be provided with stator and stator is all fixedly connected with the two, impeller to be arranged in front case and to be connected with output shaft one end of motor.Above-mentioned blower fan, to not making its significantly break-in during air work, decreases eddy current loss, improves blower fan working efficiency, but it also also exists the defect in design in heat radiation, diffusion, water conservancy diversion and support strength.
Model utility content
The technical problem that radiating efficiency in prior art is low in order to overcome, motor support intensity is little, eddy current loss is large, the utility model provides a kind of good heat dissipation, motor support intensity is high, eddy current loss is little Mixed flow Fan.
Described Mixed flow Fan, comprise air duct, motor support cylinder, motor, diagonal impeller, air guide ring and air-returning device, described motor is axially set in described air duct, described motor support cylinder is located at output shaft one end of described motor and is fixedly connected with the inwall of described air duct, described diagonal impeller is connected with the output shaft of described motor, described air guide ring is located on the axial rearward end of described diagonal impeller and is connected with described air duct, and described air-returning device is located on described outside motor and is connected with described motor support cylinder and described air duct;
Described air duct comprises the coaxial urceolus, inner core and the air conducting tube that arrange, and described inner core and described air conducting tube in the axial direction front and back are arranged, and the two is with being located in described urceolus, and and between its barrel, form annular gas flow;
Described air-returning device comprises the return air cylinder and discoid return air plate that axially connect, existing between described return air cylinder and described motor can the radial clearance that flows of supplied gas, flow and take away heat in the surface making the gas of backflow can be close to described motor, play radiating effect, the front end of described return air cylinder is connected with the rear end of described motor support cylinder, the rear end of described return air cylinder is connected to the interior edge of described return air plate, and the outer of described return air plate is connected with the inwall of described inner core.
According to a preferred embodiment of the present utility model, described motor support cylinder comprises mounting flange, mounting cylinder and dunnage, described mounting flange is connected with the support of described motor, described mounting cylinder is located on described outside motor and its one end is connected with the outer edge of described mounting flange is vertical, and described dunnage to be arranged between motor support cylinder and described inner core and to be fixedly connected with the two.
According to a preferred embodiment of the present utility model, the internal diameter of described mounting cylinder is equal with the internal diameter of described return air cylinder.
According to a preferred embodiment of the present utility model, described diagonal impeller comprises round table-like wheel hub, blade and wheel disc, be arranged on same axis before and after described wheel disc and described wheel hub, gas flow is formed between the two, described blade is uniformly distributed along the radial outside of described wheel hub, and is connected with described wheel disc.
According to a preferred embodiment of the present utility model, between the exhaust outlet of described diagonal impeller and the wind inlet of described air guide ring, maintain gap.
According to a preferred embodiment of the present utility model, described diagonal impeller also comprises cowling, and described cowling is located at the axial forward end of described wheel hub, and is connected with it.
According to a preferred embodiment of the present utility model, described air guide ring is curved annular structure, and comprising the outer air guide ring and interior air guide ring that coaxially arrange with described air duct, it is outside that described outer air guide ring is located at described interior air guide ring, and form the gas flow of annular between the two.
According to a preferred embodiment of the present utility model, described air conducting tube is arc structure, can play the effect of water conservancy diversion and diffusion to air-flow.
According to a preferred embodiment of the present utility model, described Mixed flow Fan also comprises the slip ring of flared structure, wind inlet one end of described air duct is located at by described slip ring, and its opening end is connected with described urceolus, and its end that closes up inserts the wind inlet of described diagonal impeller.
According to a preferred embodiment of the present utility model, described Mixed flow Fan also comprises quiet stator, and described quiet stator is uniformly distributed in the gas flow between described inner core and described urceolus, and is fixedly connected with the barrel of the two.
The technological scheme that the utility model provides has following beneficial effect:
1, described Mixed flow Fan by arranging the air-returning device of a few font between motor and inner core, make the gas of backflow can be close to the flowing of motor surface, take away a large amount of heats, the effect of gas pressure difference is got back in gas flow through mounting flange and the gap between diagonal impeller and air guide ring again, form the heat radiation circulation of a flowing, be convenient to the quick heat radiating of motor, extend the working life of motor.
2, described Mixed flow Fan has additional dunnage between its motor support cylinder and inner core, strengthens the join strength between the two, increases the support strength to motor, reduce the vibration of blower fan.
3, described Mixed flow Fan is provided with the cowling of cone arc in air inlet, can carry out water conservancy diversion to air-flow; Be provided with the air conducting tube of arc at exhaust outlet place, one can play the effect of reduction of speed diffusion to air-flow, and reduce windage loss, air-flow is guided near motor by wall attachment effect by smoothly, convenient heat radiation.
Accompanying drawing explanation
In order to be illustrated more clearly in the technological scheme in the utility model embodiment, below the accompanying drawing used required in describing embodiment is briefly described, apparently, accompanying drawing described below is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings, wherein:
Fig. 1 is the structural representation of a kind of embodiment of the Mixed flow Fan that the utility model provides;
In figure: 1 air duct, 2 motor support cylinders, 3 motors, 4 diagonal impellers, 5 slip rings, 6 air guide rings, 7 air-returning devices, 8 quiet stators; 11 urceolus, 12 inner cores, 13 air conducting tubes; 21 mounting flanges, 22 mounting cylinders, 23 dunnages; 41 wheel hubs, 42 blades, 43 wheel discs, 44 cowlings; 61 outer air guide rings, air guide ring in 62; 71 return air cylinders, 72 return air plates.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technological scheme in the utility model embodiment, obviously, described embodiment is only a part of embodiment of the present utility model, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making other embodiments all obtained under creative work prerequisite, all belong to the scope of the utility model protection.
Refer to Fig. 1, the structural representation of a kind of embodiment of the Mixed flow Fan provided for the utility model.Described Mixed flow Fan comprises air duct 1, motor support cylinder 2, motor 3, diagonal impeller 4, slip ring 5, air guide ring 6, air-returning device 7 and quiet stator 8.The wind inlet end of described air duct 1 is located at by described slip ring 5, described motor 3 is axially set in described air duct 1, described motor support cylinder 2 is located at output shaft one end of described motor 3 and is fixedly connected with described air duct 1, described diagonal impeller 4 is connected with the output shaft of described motor 3, described air guide ring 6 is located on the axial rearward end of described diagonal impeller 4 and is connected with described air duct 1, described air-returning device 7 is located on described motor 3 outside and is connected with described motor support cylinder 2 and described air duct 1, and described quiet stator 8 is located on the barrel of air duct 1.
Described air duct 1 comprises the urceolus 11 be arranged on same axis, inner core 12 and air conducting tube 13.Described inner core 12 and described air conducting tube 13 in the axial direction front and back arrange and are bolted, and the two is with being located in described urceolus 11, and and form annular gas flow between its barrel.Described air conducting tube 13 is arc structure, and one can play the effect of reduction of speed diffusion to air-flow, and reduce windage loss, air-flow is guided near described motor 3 by wall attachment effect by smoothly, is convenient to its heat radiation.
Described motor support cylinder 2 comprises mounting flange 21, mounting cylinder 22 and dunnage 23.Described mounting flange 21 is located at output shaft one end of described motor 3, and is bolted to connection with its support, and space is left in this joint; Described mounting cylinder 22 is the tubular structure of both ends open and is located on described motor 3 outside, the outer edge vertical welding of its one end and described mounting flange 21; Described dunnage 23 is arranged between described motor support cylinder 2 and described inner core 12, and welds with the barrel of described inner core 12 and described mounting flange 21, described mounting cylinder 22.Described dunnage 23 strengthens the join strength between described motor support cylinder 2 and described inner core 12, increases the support strength to described motor 3, reduces the vibration of described blower fan.
Described motor 3 is threephase asynchronous machine, and it is inner to be located at described inner core 12, and its output shaft is fixedly connected with described diagonal impeller 4 by spindle nose locking device.
Described diagonal impeller 4 comprises round table-like wheel hub 41, blade 42, wheel disc 43 and cowling 44.Be arranged on same axis before and after described wheel disc 43 and described wheel hub 41, the motion and the bootable air-flow of arc-shaped gas runner formed between the two slowly alters course, while the high blast of guarantee, decrease the eddy current loss directly turning to radial motion to bring, improve the working efficiency of blower fan; Described blade 43 is uniformly distributed along the radial outside of described wheel hub 41, and be connected with described wheel disc 43, described cowling 44 is located at the axial forward end of described wheel hub 41 and is bolted with it, and described cowling 44 is cone arcuate structure, can carry out water conservancy diversion to air-flow.
Described slip ring 5 be located at described air duct 1 wind inlet place and for flared structure, the air-flow make it smooth and easyly enter in described blower fan of can putting together.Described slip ring 5 closing in end appropriateness insert described diagonal impeller 4 wind inlet and with its maintenance gap, described slip ring 5 can not be collided with the described diagonal impeller 4 in rotation, the edge portions of the opening end of described slip ring 5 is then bolted structure and is connected with the barrel of described urceolus 11, in order to reach damping and better sealing effect, the joint of the two also has additional sealing rubber ring.
Described air guide ring 6 is the effective curved annular structure of water conservancy diversion, and comprises the coaxial outer air guide ring 61 that arranges and interior air guide ring 62 with described air duct 1.Described outer air guide ring 61 is located at the outside of described interior air guide ring 62, and described outer air guide ring 51 welds with the barrel of described urceolus 11, described interior air guide ring 52 welds with the barrel of described inner core 12, the gas flow of annular is formed between the two, this runner can connect the ring runner of described diagonal impeller 5 and the annular flow of described air duct 1, and it is as a whole that three is communicated with.
Maintain certain interval between the exhaust outlet of described diagonal impeller 4 and the wind inlet of described air guide ring 6, small air-flow can be passed through, and described air guide ring 6 can not collide with the described diagonal impeller 4 in rotation.
Described air-returning device 7 comprises the return air cylinder 71 and discoid return air plate 72 that axially connect, described return air cylinder 71 be located on described motor 3 outside and between the two exist can supplied gas flowing radial clearance, flowing and take away heat in the surface making the gas of backflow can be close to described motor 3, plays radiating effect.The front end of described return air cylinder 71 is welded with the rear end of described motor support cylinder 2 and the internal diameter of the two is equal, and the rear end of described return air cylinder 71 is welded in the interior edge of described return air plate 72, and the outer of described return air plate 72 is welded with the inwall of described inner core 12.
Described quiet stator 8 is uniformly distributed in the gas flow between described urceolus 11 and described inner core 12, and welds with the barrel of the two, plays the effect of rectification and water conservancy diversion.Take away a large amount of heats,
According to the Mixed flow Fan that the utility model provides, its working principle is as follows:
Start described motor 3, described diagonal impeller 4 is driven to rotate by its input shaft, air pressure in described blower fan gas flow is reduced, due to differential pressure action, ambient atmos enters in described diagonal impeller 4 via described slip ring 5, again via described air guide ring 6, gas flow between described inner core 12 and described urceolus 11 and described air conducting tube 13, finally leave described blower fan.
Due to wall attachment effect, fraction is had to be back near described motor 3, and be limited to its shape and be close to described motor 3 surface flowing, this part air-flow pressure difference effect space again on described mounting flange 21 and the gap between described diagonal impeller 4 and described air guide ring 6 are got back in gas flow, just define the heat radiation circulation of a flowing, be convenient to the quick heat radiating of described motor 3, extend its working life.
The foregoing is only embodiment of the present utility model; not thereby scope of patent protection of the present utility model is limited; every utilize the utility model specification and accompanying drawing content to do equivalent structure or equivalent flow process conversion; directly or indirectly be used in the technical field that other is relevant, be all in like manner included in scope of patent protection of the present utility model.
Claims (10)
1. a Mixed flow Fan, it is characterized in that, comprise air duct (1), motor support cylinder (2), motor (3), diagonal impeller (4), air guide ring (6) and air-returning device (7), described motor (3) is axially set in described air duct (1), described motor support cylinder (2) is located at output shaft one end of described motor and is fixedly connected with the inwall of described air duct (1), described diagonal impeller (4) is connected with the output shaft of described motor (3), described air guide ring (6) is located on the axial rearward end of described diagonal impeller (3) and is connected with described air duct (1), described air-returning device (7) is located on described motor (3) outside and is connected with described motor support cylinder (2) and described air duct (1),
Described air duct (1) comprises the coaxial urceolus (11), inner core (12) and the air conducting tube (13) that arrange, described inner core (12) and described air conducting tube (13) in the axial direction front and back are arranged, and the two is with being located in described urceolus (11), and and between its barrel, form annular gas flow;
Described air-returning device (7) comprises the return air cylinder (71) and discoid return air plate (72) that axially connect, existing between described return air cylinder (71) and described motor (3) can the radial clearance that flows of supplied gas, flow and take away heat in the surface making the gas of backflow can be close to described motor (3), play radiating effect, the front end of described return air cylinder (71) is connected with the rear end of described motor support cylinder (2), the rear end of described return air cylinder (71) is connected to the interior edge of described return air plate (72), the outer of described return air plate (72) is connected with the inwall of described inner core (12).
2. Mixed flow Fan according to claim 1, it is characterized in that, described motor support cylinder (2) comprises mounting flange (21), mounting cylinder (22) and dunnage (23), described mounting flange (21) is connected with the support of described motor (3), described mounting cylinder (22) is located on outside and its one end of described motor (3) and is connected with the outer edge of described mounting flange (21) is vertical, and described dunnage (23) to be arranged between described motor support cylinder (2) and described inner core (12) and to be fixedly connected with the two.
3. Mixed flow Fan according to claim 2, is characterized in that, the internal diameter of described mounting cylinder (22) is equal with the internal diameter of described return air cylinder (71).
4. Mixed flow Fan according to claim 1, it is characterized in that, described diagonal impeller (4) comprises round table-like wheel hub (41), blade (42) and wheel disc (43), be arranged on same axis before and after described wheel disc (43) and described wheel hub (41), gas flow is formed between the two, described blade (43) is uniformly distributed along the radial outside of described wheel hub (41), and is connected with described wheel disc (43).
5. Mixed flow Fan according to claim 4, is characterized in that, maintains gap between the exhaust outlet of described diagonal impeller (4) and the wind inlet of described air guide ring (6).
6. Mixed flow Fan according to claim 5, it is characterized in that, described diagonal impeller (4) also comprises cowling (44), and described cowling (44) is located at the axial forward end of described wheel hub (41), and is connected with it.
7. Mixed flow Fan according to claim 1, it is characterized in that, described air guide ring (6) is curved annular structure, and comprise the coaxial outer air guide ring (61) that arranges and interior air guide ring (62) with described air duct (1), it is outside that described outer air guide ring (61) is located at described interior air guide ring (62), and form the gas flow of annular between the two.
8. Mixed flow Fan according to claim 1, is characterized in that, described air conducting tube (13) is arc structure, can play the effect of water conservancy diversion and diffusion to air-flow.
9. Mixed flow Fan according to claim 4, it is characterized in that, described Mixed flow Fan also comprises the slip ring (5) of flared structure, wind inlet one end of described air duct (1) is located at by described slip ring, its opening end is connected with described urceolus (11), and its end that closes up inserts the wind inlet of described diagonal impeller (4).
10. Mixed flow Fan according to claim 1, it is characterized in that, described Mixed flow Fan also comprises quiet stator (8), described quiet stator (8) is uniformly distributed in the gas flow between described inner core (12) and described urceolus (11), and is fixedly connected with the barrel of the two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859767.XU CN205101247U (en) | 2015-10-30 | 2015-10-30 | Oblique flow ventilation blower |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859767.XU CN205101247U (en) | 2015-10-30 | 2015-10-30 | Oblique flow ventilation blower |
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| CN205101247U true CN205101247U (en) | 2016-03-23 |
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| CN201520859767.XU Active CN205101247U (en) | 2015-10-30 | 2015-10-30 | Oblique flow ventilation blower |
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Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107906029A (en) * | 2017-01-16 | 2018-04-13 | 台州四合风机有限公司 | A kind of Mixed-fluid dryer wet-emitting blower |
| CN108240344A (en) * | 2016-12-23 | 2018-07-03 | 华中科技大学 | A kind of two-stage diagonal flow fan |
| CN108412793A (en) * | 2018-05-16 | 2018-08-17 | 株洲联诚集团控股股份有限公司 | AC transmission electric power locomotive traction ventilator and its locomotive |
| CN108547777A (en) * | 2018-05-23 | 2018-09-18 | 熙诚环保科技（苏州）有限公司 | A kind of diagonal flow fan with anti-corrosion function |
| CN109654043A (en) * | 2017-10-11 | 2019-04-19 | 台达电子工业股份有限公司 | Fan |
| CN110529410A (en) * | 2019-08-09 | 2019-12-03 | 西安交通大学 | A kind of flow-mixing blower fan |
| CN111456965A (en) * | 2020-04-16 | 2020-07-28 | 李伟 | Centrifugal axial flow turbine and novel jet engine mode and operation method |
| CN111894872A (en) * | 2020-07-10 | 2020-11-06 | 绍兴智新机电科技有限公司 | Two-stage booster-type low noise fan |
| CN111927795A (en) * | 2020-08-20 | 2020-11-13 | 绍兴智新机电科技有限公司 | Two-stage axial flow low-noise fan |
| CN113898598A (en) * | 2021-08-19 | 2022-01-07 | 鑫磊压缩机股份有限公司 | Motor cylinder structure of magnetic suspension axial flow fan |
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2015
- 2015-10-30 CN CN201520859767.XU patent/CN205101247U/en active Active
Cited By (14)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108240344A (en) * | 2016-12-23 | 2018-07-03 | 华中科技大学 | A kind of two-stage diagonal flow fan |
| CN108240344B (en) * | 2016-12-23 | 2019-07-09 | 华中科技大学 | A kind of two-stage diagonal flow fan |
| CN107906029A (en) * | 2017-01-16 | 2018-04-13 | 台州四合风机有限公司 | A kind of Mixed-fluid dryer wet-emitting blower |
| CN109654043A (en) * | 2017-10-11 | 2019-04-19 | 台达电子工业股份有限公司 | Fan |
| CN108412793A (en) * | 2018-05-16 | 2018-08-17 | 株洲联诚集团控股股份有限公司 | AC transmission electric power locomotive traction ventilator and its locomotive |
| CN108547777B (en) * | 2018-05-23 | 2023-08-15 | 熙诚环保科技（苏州）有限公司 | Diagonal flow fan with anti-corrosion function |
| CN108547777A (en) * | 2018-05-23 | 2018-09-18 | 熙诚环保科技（苏州）有限公司 | A kind of diagonal flow fan with anti-corrosion function |
| CN110529410A (en) * | 2019-08-09 | 2019-12-03 | 西安交通大学 | A kind of flow-mixing blower fan |
| CN110529410B (en) * | 2019-08-09 | 2021-12-31 | 西安交通大学 | Mixed flow fan |
| CN111456965B (en) * | 2020-04-16 | 2022-02-15 | 李伟 | Centrifugal axial flow turbine and novel jet engine mode and operation method |
| CN111456965A (en) * | 2020-04-16 | 2020-07-28 | 李伟 | Centrifugal axial flow turbine and novel jet engine mode and operation method |
| CN111894872A (en) * | 2020-07-10 | 2020-11-06 | 绍兴智新机电科技有限公司 | Two-stage booster-type low noise fan |
| CN111927795A (en) * | 2020-08-20 | 2020-11-13 | 绍兴智新机电科技有限公司 | Two-stage axial flow low-noise fan |
| CN113898598A (en) * | 2021-08-19 | 2022-01-07 | 鑫磊压缩机股份有限公司 | Motor cylinder structure of magnetic suspension axial flow fan |
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