CN2103677U - Axial-flow fan for air-condition and ventilation - Google Patents
Axial-flow fan for air-condition and ventilation Download PDFInfo
- Publication number
- CN2103677U CN2103677U CN91230849U CN91230849U CN2103677U CN 2103677 U CN2103677 U CN 2103677U CN 91230849 U CN91230849 U CN 91230849U CN 91230849 U CN91230849 U CN 91230849U CN 2103677 U CN2103677 U CN 2103677U
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- CN
- China
- Prior art keywords
- impeller
- air
- axial
- blade
- flow blower
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- 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.)
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P20/00—Technologies relating to chemical industry
- Y02P20/10—Process efficiency
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Abstract
The utility model relates to an axial-flow fan for air conditions and ventilations, belonging to blowers. The utility model comprises a casing, an impeller, a bearing box, a machine frame, a gearing and a power source. The impeller uses parabola type wires, space torsion curved plates, and a multilayer composite structure. The impeller, the bearing box and the machine frame become one integration, which can move along the axial direction and can freely enter the casing. In the state of the impeller without disassembly, the bearing box can be changed after the cover of the bearing box is uncovered. The flow fan has the advantages of energy saving, simple structure, convenient maintenance, and low cost, being suitable for large-sized air condition, ventilation and air purification for the departments of textiles, metallurgy, machine, chemical industry, instrumentation, subway tunnel, environmental protection, etc.
Description
The utility model is a kind of air-conditioning, ventilation axial-flow blower, belongs to fan-type.
Gong Ying axial-flow blower in the market, its blade specific strength and specific stiffness are lower, and the dynamic structure less stable, so in use its technical performance is degenerated obviously.The impeller supporting is generally all adopted crab claw two supporting structures or simple cantilever support structure, this class supporting structure, and when maintenance was installed, blower fan need disintegrate, and employed large lifting equipment and heavy muscle power operation.
In order to overcome the problem of above-mentioned existence, the purpose of this utility model, be to provide a kind of blade efficiency stable, specific strength and specific stiffness height, the dynamic structure good stability and late shaking property good and when maintenance is installed blower fan need not to disintegrate, avoid air-conditioning, the ventilation axial-flow blower of large lifting equipment and heavy muscle power operation.
The utility model relates to a kind of air-conditioning, ventilation axial-flow blower, and it is made up of shell, impeller, bearing housing, frame, transmission device and power source.Impeller comprises blade and wheel hub.Blade is to be guidance with the equal strength principle, and it is shaped as the parabolic molded lines, curved plate, multi-layer compound structure are reversed in the space, and through the aerodynamic experiment correction, to reduce boundary layer separation loss.Blade forming face parameter sees Table one.The blade multi-layer compound structure is to be overlapped in together by many blades, connects solid in aggregates with spot welding, screw or gluing and screw.So the light and handy material-saving of energy, good manufacturability, cost is low, the specific strength of efficient height and blade and specific stiffness height, the dynamic structure good stability, shaking property is good late, has improved advantages such as the fatigue strength of blade, the secondary breathing that has reduced blade, noise.Blade root is adopted flange arrangement, connects solid with bolt and wheel hub.Blade can be made by steel plate, aluminium alloy plate or reinforced plastic.The main shaft of bearing housing is a multidiameter shaft, begins from the impeller end bearing, falls progressively step by step to the belt pulley mounting end, and its bearing is loaded on the bearing housing two end part, is sealed by the bearing housing two end cap respectively.Cantilever structure is adopted in the impeller supporting, the frame lower mounting rail, the two is structure as a whole, common guarantee impeller, bearing housing and frame can move vertically with integrality so that free in and out shell, simple in structure, easy to maintenance, when having avoided maintenance to install, impeller need not to disintegrate and employ large lifting equipment, and this makes things convenient for manyly than crab claw two supportings and simple cantilever support structure.Bearing housing has guaranteed impeller, bearing housing and the frame any axial position under integrality, does not dismantle impeller, presses an impeller and an axle original position supporting programmed sequence of operations, open bearing box cover after, promptly replaceable bearing.The utility model can be complementary with the multiple kind of drive (as belt transmission, gear transmission, fluid coupling transmission or directly adopt variable-frequency governor etc.) and multiple power source (as motor, diesel engine, petrol engine or steam turbine etc.).The utility model can derive from the big or small axial-flow blower of different size and different performance parameter according to geometric similarity and dynamic similarity theory, forms the axial-flow blower of series.
The utility model is and can realizes the axial-flow blower structure of further using electricity wisely with the low structural manufacturing process of cost, thereby reaches unit ten thousand air quantity power consumptions, than the much lower index of present industry using electricity wisely index.
The utility model is its advantage compared with the prior art: using electricity wisely, and the stabilised efficiency of blade, specific strength and specific stiffness height, the dynamic structure good stability, simple in structure, easy to maintenance, low cost of manufacture etc.
Characteristics of the present utility model can also obtain further instruction from the accompanying drawing and the subordinate list of following examples.
Fig. 1, the overall front elevational schematic of the utility model.
Fig. 2, the overall vertically cross-sectional schematic of the utility model.
Fig. 3, the utility model blade front elevational schematic.
Fig. 4, the utility model blade schematic top view.
Fig. 5 is the A-A cross-sectional schematic of Fig. 4.
Table 1, blade forming face parameter.
The drawing numbering:
The 1-shell, 2-impeller, 3-bearing housing, 4-frame, 5-power source, 6-guide rail, 7-belt pulley, 8-linear leaf, blade among the 9-, 10-short blade, 11-wheel hub, 12-screw.
Below in conjunction with accompanying drawing and subordinate list, embodiment of the present utility model is described in detail.
The utility model is a kind of air-conditioning, ventilation axial-flow blower.It is made up of shell 1, impeller 2, bearing housing 3, frame 4, power source 5, transmission device, and blade is combined by linear leaf 8, middle blade 9 and short blade 10.Blade shape is that curved plate is reversed in parabolic molded lines, space, and blade forming face parameter sees Table one, is fixed into the structure of MULTILAYER COMPOSITE with spot welding with three kinds of blades are stacked in order again, and with screw 12 blade root is connected on the wheel hub 11.Impeller 2 is installed on the axle head that overhangs outside bearing housing 3, and the end in addition of axle is installed the parts belt pulley 7 of transmission device, with belt belt pulley 7 is connected with motor.The frame 4 that is loaded under the bearing housing 3 is passed through guide rail 6 with being connected of basis, and this can make impeller 2,4 one-tenth integralities of bearing housing 3 and frame move vertically, so that free in and out shell.Any axial position is not in this state dismantled impeller 2, presses an impeller 2 and an axle original position supporting programmed sequence of operations, open bearing box cover after, promptly replaceable bearing.Power source promptly produces wind by the rotation of transmission device impeller.
The utility model confirms that through full scale test its power savings is good, and unit ten thousand air quantity power consumptions have reached 0.8KW/10
4M
3/ h(is lower than textile industry set quota 1.5KW/10
4M
3/ h) manufacture cost is than blower fan of the same type low 50%.
The utility model can be widely used in large-size air conditioning, ventilation and the air cleaning system of industry departments such as weaving, metallurgy, machinery, chemical industry, instrument, subway tunnel and environmental protection.
Claims (5)
1, a kind of air-conditioning, ventilation axial-flow blower, it is made up of impeller, shell, bearing housing, frame, transmission device and power source, it is characterized in that:
A) blade shape is that curved plate, multi-layer compound structure are reversed in parabolic molded lines, space, and blade root is adopted flange arrangement, connects solid with bolt and wheel hub;
B) the bearing housing main shaft is a multidiameter shaft, begins from the impeller end bearing, falls progressively step by step to the belt pulley mounting end, and its bearing is loaded on the bearing housing two end part, is sealed by the bearing housing two end cap respectively;
C) cantilever structure is adopted in the supporting of guide rail of installing under the frame and impeller, as axially movable whole mechanism.
2, air-conditioning according to claim 1, ventilation axial-flow blower, it is characterized in that: power source can adopt motor, diesel engine or steam turbine.
3, air-conditioning according to claim 1, ventilation axial-flow blower is characterized in that: the kind of drive of transmission device can or directly adopt variable-frequency governor with belt transmission, gear transmission, fluid coupling transmission.
4, air-conditioning according to claim 1, ventilation axial-flow blower, it is characterized in that: blade is a multi-layer compound structure, is overlapped in together by many blades, connects with spot welding, screw or gluing and screw to be integral admittedly.
5, air-conditioning according to claim 1, ventilation axial-flow blower is characterized in that: the material that blade adopts is: steel plate, aluminium alloy plate or reinforced plastic.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91230849U CN2103677U (en) | 1991-10-29 | 1991-10-29 | Axial-flow fan for air-condition and ventilation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN91230849U CN2103677U (en) | 1991-10-29 | 1991-10-29 | Axial-flow fan for air-condition and ventilation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2103677U true CN2103677U (en) | 1992-05-06 |
Family
ID=4936133
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN91230849U Withdrawn CN2103677U (en) | 1991-10-29 | 1991-10-29 | Axial-flow fan for air-condition and ventilation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2103677U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678002A (en) * | 2016-11-28 | 2017-05-17 | 哈尔滨工大金涛科技股份有限公司 | Wind turbine blade and blade machining method |
-
1991
- 1991-10-29 CN CN91230849U patent/CN2103677U/en not_active Withdrawn
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106678002A (en) * | 2016-11-28 | 2017-05-17 | 哈尔滨工大金涛科技股份有限公司 | Wind turbine blade and blade machining method |
| CN106678002B (en) * | 2016-11-28 | 2023-10-20 | 哈尔滨工大金涛科技股份有限公司 | Wind turbine blade and blade processing method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |