CN205101257U - Cylindric centrifugal fan - Google Patents
Cylindric centrifugal fan Download PDFInfo
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- CN205101257U CN205101257U CN201520859830.XU CN201520859830U CN205101257U CN 205101257 U CN205101257 U CN 205101257U CN 201520859830 U CN201520859830 U CN 201520859830U CN 205101257 U CN205101257 U CN 205101257U
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- guide ring
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Abstract
The utility model provides a cylindric centrifugal fan, including dryer, motor, centrifugal impeller, collector and wind -guiding ring, the motor is located just the two is located same axis in the dryer, the centrifugation impeller with the collector is located the ascending same one end of dryer axle, just the centrifugation impeller with the output shaft of motor, wind -guiding ring is located the centrifugation impeller the radial outside and with the dryer is connected, the dryer includes at the urceolus of coaxial setting and inner tube, the two the annular gas channel of the intermural formation of a section of thick bamboo, wind -guiding ring is the ARC ring column structure, and include with wind -guiding ring in the outer wind -guiding ring sum of the coaxial setting of dryer, outer wind -guiding ring is located interior wind -guiding ring is outside, and the two forms annular gas channel. The utility model provides a cylindric centrifugal fan can follow pipeline axial convection cell and carry out long distance transportation to effectively reduce the fluid change to the time flow losses that cause.
Description
Technical field
The utility model relates to fluid conveying machine technical field, particularly, relates to a kind of tubular centrifugal blower.
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 into axial fan and centrifugal fan, wherein the installation volume of axial fan is little and ventilation pressure is low, flow is large, axial conveying can be carried out by convection cell, and the ventilation pressure of centrifugal fan is high, flow is little, the fed distance of fluid is long.In order to the advantage of both, design a kind of ventilator be made up of cylindrical shape air duct and centrifugal impeller, its ventilation pressure is high, flow is large, and long distance delivery can be carried out along pipeline axial convection cell, there are market prospects widely.
In prior art, patent CN1020246513 discloses a kind of centrifugal axial-flow fan, comprise the structures such as slip ring, centrifugal impeller, body, motor cavity, stator and airstream deflector, body be columnar structured and front opening be wind inlet, open rearward end is exhaust outlet, motor cavity is positioned at internal body and is fixedly connected with body by stator, its inside is provided with motor, centrifugal impeller is located at body front end and is connected with motor, wind inlet place is provided with slip ring, is provided with the ringent airstream deflector in inside slope at slip ring outer wall and internal body.Although this blower fan combines the feature of axial-flow blower and centrifugal blower, also be provided with the generation that airstream deflector structure stops turbulent flow, but change in the process of axial flow at gas by Radial Flow, because airstream deflector profile design is bad, gas can produce a large amount of impact loss and eddy current loss; And the width of the gas flow of this blower fan is constant all the time, make the diffusion effect of its exhaust outlet place gas bad, build-up of pressure loses, and reduces fan efficiency, needs additionally to arrange Diffuser to it; In addition, because motor cavity is sealed shape, heat dissipation ventilation can not be carried out to motor, also substantially reduce the working life of motor.
Model utility content
Produce the technical problem of a large amount of flow losses for overcoming air-flow break-in in prior art, the utility model provides the tubular centrifugal blower that a kind of drafting efficiency is high, fluid flow loss is little.
Described tubular centrifugal blower, comprise air duct, motor, centrifugal impeller, slip ring and air guide ring, described motor is located in described air duct and the two is positioned on same axis, described air duct same one end is axially located at by described centrifugal impeller and described slip ring, and described centrifugal impeller is connected with the output shaft of described motor, described air guide ring is located on the radial outside of described centrifugal impeller and is connected with described air duct;
Described air duct comprises the coaxial urceolus, inner core and the mounting flange that arrange, described inner core is located in described urceolus, and between the barrel of the two, forming the gas flow of annular, described mounting flange is located at the radially inner side of the axial one end of described inner core and is connected with its inwall, for fixedly mounting described motor;
Described air guide ring is curved annular structure, and comprises the outer air guide ring and interior air guide ring that coaxially arrange with described air duct, and described outer air guide ring is located at the outside of described interior air guide ring, and forms gas flow between the two.
According to a preferred embodiment of the present utility model, described centrifugal impeller comprises front wheel disc, rear trochal disc, blade and wheel hub, be arranged on same axis before and after described front wheel disc and described rear trochal disc, described blade is located in described front wheel disc and is connected respectively with the two with between described rear trochal disc, realizes the axis input of gas and radially to export in described centrifugal impeller.
According to a preferred embodiment of the present utility model, the radially inner side limit of described blade and axial direction are the angle of 6-12 °, and the radial outside limit of described blade and axial direction are the angle of 3-10 °.
According to a preferred embodiment of the present utility model, the exhaust outlet of described centrifugal impeller inserts the wind inlet of described air guide ring.
According to a preferred embodiment of the present utility model, described slip ring is flared structure, and its opening end is connected with described urceolus, and its end that closes up inserts the wind inlet of described centrifugal impeller
According to a preferred embodiment of the present utility model, described inner core is being greater than its diameter near described fan outlet one end near the diameter of described air inlet one end.
According to a preferred embodiment of the present utility model, described blower fan also comprises quiet stator, and described quiet stator is uniformly distributed in the gas flow between described urceolus and described inner core, and is fixedly connected with the barrel of the two.
According to a preferred embodiment of the present utility model, described blower fan also comprises stiffening rib, and described stiffening rib to be symmetricly set on described urceolus and to be fixedly connected with its outer wall, described stiffening rib has the lifting transport that through hole is convenient to described blower fan.
According to a preferred embodiment of the present utility model, described inner core adopts arcuate structure at its exhaust outlet place, can play the effect of water conservancy diversion and diffusion to the gas at nearly exhaust outlet place.
According to a preferred embodiment of the present utility model, the barrel of described inner core has vent hole, for described motor radiating.
The technological scheme that the utility model provides has following beneficial effect:
1, described tubular centrifugal blower combines the advantage of axial-flow blower and centrifugal blower, can carry out long distance delivery, during use, ventilation pressure is high, flow is large, efficiency is high, applied widely along pipeline axial convection cell.
2, there is angle in the radial side of the blade of described tubular centrifugal blower and axial direction, making air-flow form certain speed gradient when flowing out impeller, decreasing flow losses.Simultaneously by arranging the guide ring of arc between air duct and centrifugal impeller, making the changed course of air-flow more smooth and easy, improve the working efficiency of blower fan.
3, the exhaust outlet place of the inner core of described tubular centrifugal blower is arcuate structure, plays the effect of water conservancy diversion and diffusion, is conducive to the dynamic pressure of air-flow to change to static pressure, improves the working efficiency of blower fan.
4, the motor cavity of described tubular centrifugal blower is Open architecture, and cylinder barrel has vent hole within it, can form loop, carry out heat dissipation ventilation to motor, extend the working life of motor with the air-flow in gas flow.
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 tubular centrifugal blower that the utility model provides;
Fig. 2 is the structural representation of centrifugal impeller embodiment illustrated in fig. 1;
Fig. 3 is the structural representation of inner core embodiment illustrated in fig. 1;
In figure: 1 air duct, 2 motors, 3 centrifugal impellers, 4 slip rings, 5 air guide rings, 6 quiet stators, 7 stiffening ribs; 11 urceolus, 12 inner cores, 13 mounting flanges; Wheel disc before 31,32 rear trochal discs, 33 blades, 34 wheel hubs; 51 outer air guide rings, air guide ring in 52.
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 tubular centrifugal blower provided for the utility model.Described tubular centrifugal blower comprises air duct 1, motor 2, centrifugal impeller 3, slip ring 4, air guide ring 5, quiet stator 6 and stiffening rib 7, described stiffening rib 7 is located at the outer wall of described air duct 1, described quiet stator 6 to be located in described air duct 1 and to be connected with its barrel, described motor 2 is located in described air duct 1 and the two is positioned on same axis, described air duct 1 same one end is axially located at by described centrifugal impeller 3 and described slip ring 4, and described centrifugal impeller 3 is connected with the output shaft of described motor 2, described air guide ring 5 is located on the radial outside of described centrifugal impeller 3 and is connected with described air duct 1.
Described air duct 1 is the columnar structured of axial both ends open, and it comprises the coaxial urceolus 11, inner core 12 and the mounting flange 13 that arrange.Described inner core 12 is located in described urceolus 11, and the gas flow that between the barrel of the two, formation one is annular, be conducive to the resistance be subject to when reducing gas circulation, described mounting flange 13 is a flange plate, it is located at the radially inner side of described axial one end of inner core 12 and welds with its inwall, for fixedly mounting described motor, for fixedly mounting described motor 2.
Referring again to Fig. 3, it is the structural representation of inner core embodiment illustrated in fig. 1.The internal cavity of described inner core 12 is Open architecture, its barrel has vent hole, forms loop by the air-flow in leeway and gas flow, carries out heat dissipation ventilation, extend its working life to described motor 2.In addition, described inner core 12 is being greater than its diameter near described fan outlet one end near the diameter of described air inlet one end, it adopts arcuate structure at exhaust outlet place, wall attachment effect can be utilized to play good guide functions to gas, be conducive to the dynamic pressure of air-flow to change to static pressure, improve the working efficiency of blower fan.
Described motor 2 is threephase asynchronous machine, and it is inner that it is located at described inner core 12, and be located on same axis with described air duct 1, and its output shaft is fixedly connected with described centrifugal impeller 3 by spindle nose locking device.
Seeing also Fig. 2, is the structural representation of centrifugal impeller embodiment illustrated in fig. 1.Described centrifugal impeller 3 is located at one end of the nearly wind inlet of described air duct 1, and can realize the axis input of gas and radial output, it comprises front wheel disc 31, rear trochal disc 32, blade 33 and wheel hub 34.Be arranged on same axis before and after described front wheel disc 31 and described rear trochal disc 32, described blade 33 is uniformly distributed along the radial outside of described wheel hub 34, and to be located between described front wheel disc 31 with described rear trochal disc 32 and and to be connected respectively with the two.
The radially inner side limit of described blade 33 and axial direction are the angle of 6-12 °, and the radial outside limit of described blade and axial direction are the angle of 3-10 °, can need to choose proper angle according to flow.Said structure design makes air-flow form certain speed gradient when flowing out described centrifugal impeller 3, makes the smooth break-in of air flow energy, reduces the flow losses of air-flow.
Described slip ring 4 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 4 closing in end appropriateness insert described centrifugal impeller 3 wind inlet and with its maintenance gap, described slip ring 4 can not be collided with the described centrifugal impeller 3 in rotation, the edge portions of the opening end of described slip ring 4 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 5 is curved annular structure, and comprises the coaxial outer air guide ring 51 that arranges and interior air guide ring 52 with described air duct 1.Described outer air guide ring 51 is located at the outside of described interior air guide ring 52, make the gas flow forming annular between the two, and at its exhaust outlet place, described outer air guide ring 51 is connected with the barrel of described urceolus 11, and described interior air guide ring 52 is connected with the barrel of described inner core 12, and said structure has good guide functions, bootable air-flow slow transits through bend and alters course, improve the working efficiency of blower fan, therefore when ensureing technique, radian should be bigger than normal.
The exhaust outlet appropriateness of described centrifugal impeller 3 inserts the wind inlet of described air guide ring 5, and described air guide ring 5 can not be collided with the described centrifugal impeller 3 in rotation.
Described quiet stator 6 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.
Described stiffening rib 7 to be symmetricly set on described urceolus 11 and to weld with its outer wall, can strengthen the support strength of described urceolus barrel, and described stiffening rib 7 have lifting and transport that through hole is convenient to described blower fan.
According to the tubular centrifugal blower that the utility model provides, its working principle is as follows:
Start described motor 2, described centrifugal impeller 3 is driven to rotate by its input shaft, the air pressure inside of described blower fan is reduced, due to differential pressure action, ambient atmos enters in described centrifugal impeller 3 via described slip ring 4, and be subject to the promotion of described blade 33 by axially to Radial Flow, and form certain speed gradient when leaving described impeller 3, air-flow to enter in described air guide ring 5 and slow transits through bend by its guiding, again change axial flow into, air-flow, by the gas flow between described urceolus 11 and described inner core 12, finally leaves described blower fan.And the diffusion action played due to the arcuate structure of described inner core 12 bottom, decrease the air loss of air-flow.
Described tubular centrifugal blower combines the advantage of axial-flow blower and centrifugal blower, can carry out long distance delivery, during use, ventilation pressure is high, flow is large, efficiency is high, applied widely along pipeline axial convection cell.
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 tubular centrifugal blower, it is characterized in that, comprise air duct (1), motor (2), centrifugal impeller (3), slip ring (4) and air guide ring (5), described motor (2) is located in described air duct (1) and the two is positioned on same axis, described air duct (1) same one end is axially located at by described centrifugal impeller (3) and described slip ring (4), and described centrifugal impeller (3) is connected with the output shaft of described motor (2), described air guide ring (5) is located on the radial outside of described centrifugal impeller (3) and is connected with described air duct (1),
Described air duct (1) comprises the coaxial urceolus (11), inner core (12) and the mounting flange (13) that arrange, described inner core (12) is located in described urceolus (11), and between the barrel of the two, form the gas flow of annular, described mounting flange (13) is located at the radially inner side of described inner core (12) axial one end and is connected with its inwall, for fixedly mounting described motor (2);
Described air guide ring (5) is curved annular structure, and comprise the coaxial outer air guide ring (51) that arranges and interior air guide ring (52) with described air duct (1), described outer air guide ring (51) is located at the outside of described interior air guide ring (52), and forms gas flow between the two.
2. tubular centrifugal blower according to claim 1, it is characterized in that, described centrifugal impeller (3) comprises front wheel disc (31), rear trochal disc (32), blade (33) and wheel hub (34), be arranged on same axis before and after described front wheel disc (31) and described rear trochal disc (32), described blade (33) is located in described front wheel disc (31) and is connected respectively with the two with between described rear trochal disc (32), realizes the axis input of gas and radially to export in described centrifugal impeller (3).
3. tubular centrifugal blower according to claim 2, it is characterized in that, the radially inner side limit of described blade (33) and axial direction are the angle of 6-12 °, and the radial outside limit of described blade (33) and axial direction are the angle of 3-10 °.
4. tubular centrifugal blower according to claim 3, is characterized in that, the exhaust outlet of described centrifugal impeller (3) inserts the wind inlet of described air guide ring (5).
5. tubular centrifugal blower according to claim 1, it is characterized in that, described slip ring (4) is flared structure, and its opening end is connected with described urceolus (11), and its end that closes up inserts the wind inlet of described centrifugal impeller (3)
6. tubular centrifugal blower according to claim 1, is characterized in that, described inner core (12) is being greater than its diameter near described fan outlet one end near the diameter of described air inlet one end.
7. tubular centrifugal blower according to claim 1, it is characterized in that, described blower fan also comprises quiet stator (6), described quiet stator (6) is uniformly distributed in the gas flow between described urceolus (11) and described inner core (12), and is fixedly connected with the barrel of the two.
8. tubular centrifugal blower according to claim 1, it is characterized in that, described blower fan also comprises stiffening rib (7), described stiffening rib (7) is symmetricly set in described urceolus (11) and goes up and be fixedly connected with its outer wall, described stiffening rib (7) has the lifting transport that through hole is convenient to described blower fan.
9. tubular centrifugal blower according to claim 1, is characterized in that, described inner core (12) adopts arcuate structure at its exhaust outlet place, can play the effect of water conservancy diversion and diffusion to the gas at nearly exhaust outlet place.
10. tubular centrifugal blower according to claim 9, is characterized in that, the barrel of described inner core (12) has vent hole, for dispelling the heat to described motor (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859830.XU CN205101257U (en) | 2015-10-30 | 2015-10-30 | Cylindric centrifugal fan |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520859830.XU CN205101257U (en) | 2015-10-30 | 2015-10-30 | Cylindric centrifugal fan |
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| CN205101257U true CN205101257U (en) | 2016-03-23 |
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| CN201520859830.XU Active CN205101257U (en) | 2015-10-30 | 2015-10-30 | Cylindric centrifugal fan |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704260A (en) * | 2016-09-12 | 2017-05-24 | 东莞市卓奇电子科技有限公司 | Turbine assembly, multistage cascade turbine and turbine jet-flow method |
| CN109506307A (en) * | 2018-11-15 | 2019-03-22 | 珠海格力电器股份有限公司 | Air outlet deflector and clarifier |
| CN109838393A (en) * | 2019-03-12 | 2019-06-04 | 上海应达风机股份有限公司 | A kind of centrifugal blower |
| CN110529414A (en) * | 2019-10-11 | 2019-12-03 | 任承钦 | A kind of Centrafugal pipeline fan |
| CN114629281A (en) * | 2021-12-06 | 2022-06-14 | 鑫磊压缩机股份有限公司 | Motor integrated structure that heat-sinking capability is good |
| CN115342078A (en) * | 2022-10-20 | 2022-11-15 | 杭州顿力电器有限公司 | High-efficiency centrifugal fan with module diffusion structure |
-
2015
- 2015-10-30 CN CN201520859830.XU patent/CN205101257U/en active Active
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106704260A (en) * | 2016-09-12 | 2017-05-24 | 东莞市卓奇电子科技有限公司 | Turbine assembly, multistage cascade turbine and turbine jet-flow method |
| CN106704260B (en) * | 2016-09-12 | 2023-08-22 | 东莞市卓奇电子科技有限公司 | Multistage cascade turbine |
| CN109506307A (en) * | 2018-11-15 | 2019-03-22 | 珠海格力电器股份有限公司 | Air outlet deflector and clarifier |
| CN109838393A (en) * | 2019-03-12 | 2019-06-04 | 上海应达风机股份有限公司 | A kind of centrifugal blower |
| CN110529414A (en) * | 2019-10-11 | 2019-12-03 | 任承钦 | A kind of Centrafugal pipeline fan |
| CN114629281A (en) * | 2021-12-06 | 2022-06-14 | 鑫磊压缩机股份有限公司 | Motor integrated structure that heat-sinking capability is good |
| CN115342078A (en) * | 2022-10-20 | 2022-11-15 | 杭州顿力电器有限公司 | High-efficiency centrifugal fan with module diffusion structure |
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