CN203321879U - Efficient and energy-saving fan series model - Google Patents
Efficient and energy-saving fan series model Download PDFInfo
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- CN203321879U CN203321879U CN2013203687384U CN201320368738U CN203321879U CN 203321879 U CN203321879 U CN 203321879U CN 2013203687384 U CN2013203687384 U CN 2013203687384U CN 201320368738 U CN201320368738 U CN 201320368738U CN 203321879 U CN203321879 U CN 203321879U
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Abstract
The utility model provides an efficient and energy-saving fan series model. The model comprises a case, an impeller and an air inlet, wherein the impeller is formed by 10 backward plate blades, a cambered wheel cap, a flat plate shaped wheel disc and a hub; the 10 backward plate blades are uniformly distributed along the peripheral direction, are welded between the cambered wheel cap and the flat plate shaped wheel disc and are assembled with the hub; the case and the air inlet are in a welding structure; the molded line of the air inlet is a tapered arc converging along the axial direction; the outlet diameters of the blades of the impeller 2 are 800mm, the inlet diameters are 276.8mm, the width is 103.4mm, the outlet width is 61.7mm and the blade outlet angles are 56 degrees; the inlet diameter of the air inlet 3 is 400mm and the width is 234.8mm. The efficient and energy-saving fan series model has high efficiency, low noise, long service life and wide range of application.
Description
Technical field
The utility model relates to a kind of blower fan, specifically designs a kind of efficient energy-saving fan series model.
Background technique
Along with the high speed development of national economy, the quickening of modernization construction, increase sharply to the demand of all kinds blower fan.But at present existing some blower fan series exists volume large, and fan performance is not good, and efficiency is low, the shortcoming such as consume energy large.For the fast development that the meets China's economy demand to blower fan, improve the technical merit of Fan Product, implement national information section about the eliminating of outmoded products progressively, promote new product spirit.My company (Jinan blower fan factory Co., Ltd.) and the advantage of Xi'an Communications University with fan design software development, application and the experimental study ability of internal class, combination among the strong ones, in April, 2009, set up the project, blower fan series type spectrum for existing most manufacturer production, in line with plugging a gap, take energy-efficient, it is target, and the principle that replaces as far as possible broad-spectrum other series product, plan and develop three blower fan series models.By the time of 3 years, Xi'an Communications University carries out numerical simulation to the complete machine complex flowfield of multiple design proposal, fan performance is estimated and hundreds of time Pneumatic Calculation has been carried out in optimization, my company (Jinan blower fan factory Co., Ltd.) manufacturing 11 cover blower fan models, carried out 40 test of many times researchs, oneself has completed this project.Three blower fan series models have all reached re-set target.
The model utility content
The purpose of this utility model, be to provide a kind of 7-20 efficient energy-saving fan model, is one of above-mentioned three blower fan series models, and trade name is 7-20 efficient energy-saving fan series model.
The utility model solves the technological scheme that its technical problem adopts: a kind of efficient energy-saving fan series model, comprise casing, impeller and intake grill, described impeller is comprised of the wheel cap (6) of ten backward plate blades (5), arc, plate shaped wheel disc (7) and wheel hub (8).Ten backward plate blades (5) are along circumferentially uniform, and be welded between the wheel cap (6) and plate shaped wheel disc (7) of arc, then whole and wheel hub (8) is assembled, the volute body that casing (1) is welded for sheet material, intake grill (3) is welded structure, its molded line is the cone arc of restraining vertically, it is characterized in that, described impeller (2) has following size characteristic: the blade exit diameter is 800mm, inlet diameter is 276.8mm, width is 103.4mm, and exit width is 61.7mm, and blade outlet angle is 56 °;
The inlet diameter of described intake grill (3) is 400mm, and width is 234.8mm.
Described casing (1) width is 123.4mm, and the casing export center is that 494.2mm, casing outlet are 355.4mm * 123.4mm to the casing center.
Corresponding efficient operating point zero dimension performance parameter is: flow coefficient 0.0348, pressure coefficient 0.6856, power factor 0.0282, fan efficiency 84.56%.
The above-mentioned size of the flow passage component of described impeller (2), intake grill (3) and casing (1) zooms in or out on year-on-year basis makes series product.
The utlity model has following advantage:
1, efficiency is high and efficient region is wide, energy-conservation, noise is low.
2, blade import wearing and tearing are little, extend impeller working life.
3, impeller is backward plate blade, so motor is difficult for overload.
4, the number of blade is 10, easy to process.
5, of many uses.
The accompanying drawing explanation
Fig. 1 is a kind of structural representation of the present utility model.
Fig. 2 is the complete section of blade wheel structure schematic diagram.
Fig. 3 is the side-looking of blade wheel structure schematic diagram.
Fig. 4 is the right elevation of Fig. 1.
Fig. 5 is zero dimensional performance curve figure of the present utility model.Wherein Φ is flow coefficient, and Ψ is coefficient of total pressure, and λ is power factor, and η r is impeller power.
In figure: 1 casing, 2 impellers, 3 intake grills, 4 transmission groups, 5 blades, 6 wheel caps, 7 wheel discs,
8 wheel hubs.
Embodiment
As Fig. 1 to Fig. 5,
7-20 efficient energy-saving fan series model (№ 8 models), 7-20 wherein is the regulation of quoting in JB/T8940-1999 " ventilator product type preparation method ", comprises casing 1, impeller 2, intake grill 3 and transmission group 4.
Described impeller is comprised of the wheel cap 6 of ten backward plate blades 5, arc, plate shaped wheel disc 7 and wheel hub 8.Ten backward plate blades 5 are along circumferentially uniform, and are welded between the wheel cap 6 and plate shaped wheel disc 7 of arc, with wheel hub 8, are assembled.
The flow passage component major character:
Impeller 2 sizes are as follows: the blade exit diameter is 800mm, and inlet diameter is 276.8mm, and width is 103.4mm, and exit width is 61.7mm, and blade outlet angle is 56 °;
The inlet diameter of intake grill 3 is 400mm, and width is 234.8mm.
The width of casing 1 is 123.4mm, and the casing export center is that 494.2mm, casing outlet are 355.4mm * 123.4mm to the casing center.
As Fig. 5, zero dimensional performance curve and parameter attribute: flow coefficient 0.0348, pressure coefficient 0.6856, power factor 0.0282, fan efficiency 84.56%.
By following data analysis type selecting advantage of the present utility model:
For example: certain Iron And Steel Plant's fan design parameter: Pa=101325; ρ=1.2kg/m
3Flow=40827m
3/ h; Total head=7700Pa;
Type selecting: existing optional 7-20 № 19.5D(n=960r/min)
Table 1 has provided 7-20 № 19.5D and 6-25 № 20D has the dimension performance relatively.
Table 1
| ? | Flow m 3/h | Total head Pa | Impeller adiabatic efficiency % | Impeller power KW |
| 6-25№20D | 40827 | 7757 | 82.1 | 107.2 |
| 7-20№19.5D | 40827 | 7716 | 84.0 | 104.2 |
| Deviate % | 0 | -0.5 | +1.9 | -3 |
Meet as can be seen from Table 1 general flow and pressure, select 7-20 № 19.5D higher by 1.9% than selecting 6-25 № 20D impeller adiabatic efficiency, impeller power descends 3%.And plane No. reduces, not only can save material, reduce costs.Can also subtract trochantinian rotary inertia GD
2, the critical speed of rotation of reduction rotor, extend bearing life, increases impeller intensity.
Purposes of the present utility model:
Blower fan series model of the present utility model belongs to middle small flow, the Intermediate High Pressure category, and the highest fan efficiency is 84.56%.Can be used as boiler primary air fan, overfire air fan and high-head induced draught fan and dedusting fan, gas-blowing engine, coal dust ventilator, main exhauster of sintering etc. with the blower fan of this modeling design.Show its advantage that performance is good, efficiency is high in Fan Selection.And can replace the most of operating point of 6-25 be widely applied in fields such as power station, metallurgy for many years.
Because product line designs by modeling, so the above-mentioned flow passage component size of impeller, intake grill and casing can zoom in or out on year-on-year basis and make series product, all within protection.
Embodiment recited above is described preferred implementation of the present utility model; not scope of the present utility model is limited; under the prerequisite that does not break away from the utility model design spirit; the relevant technical staff in the field, to various distortion of the present utility model and improvement, all should expand in protection domain as determined as the utility model claims.
Claims (3)
1. an efficient energy-saving fan series model, comprise casing, impeller and intake grill, and described impeller is comprised of the wheel cap (6) of ten backward plate blades (5), arc, plate shaped wheel disc (7) and wheel hub (8); Ten backward plate blades (5) are circumferentially uniform along rotating center, and be welded between wheel cap (6) and wheel disc (7), with wheel hub (8), be assembled, the volute body that casing (1) is welded for sheet material, intake grill (3) is welded structure and the cone arc of its molded line for restraining vertically, it is characterized in that, described impeller (2) has following size characteristic: described blade exit diameter is 800mm, inlet diameter is 276.8mm, width is 103.4mm, exit width is 61.7mm, and blade outlet angle is 56 °;
The inlet diameter of described intake grill (3) is 400mm, and width is 234.8mm;
Described casing (1) width is 123.4mm, and the casing export center is that 494.2mm, casing outlet are 355.4mm * 123.4mm to the casing center.
2. a kind of efficient energy-saving fan series model according to claim 1, is characterized in that, corresponding efficient operating point zero dimension performance parameter is: flow coefficient 0.0348, pressure coefficient 0.6856, power factor 0.0282, fan efficiency 84.56%.
3. a kind of efficient energy-saving fan series model according to claim 1 and 2, is characterized in that, the above-mentioned size of the flow passage component of described impeller (2), intake grill (3) and casing (1) zooms in or out on year-on-year basis makes series product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203687384U CN203321879U (en) | 2013-06-25 | 2013-06-25 | Efficient and energy-saving fan series model |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203687384U CN203321879U (en) | 2013-06-25 | 2013-06-25 | Efficient and energy-saving fan series model |
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| Publication Number | Publication Date |
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| CN203321879U true CN203321879U (en) | 2013-12-04 |
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| CN2013203687384U Expired - Fee Related CN203321879U (en) | 2013-06-25 | 2013-06-25 | Efficient and energy-saving fan series model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291654A (en) * | 2013-06-25 | 2013-09-11 | 济南风机厂有限责任公司 | Efficient energy-saving fan series model |
-
2013
- 2013-06-25 CN CN2013203687384U patent/CN203321879U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103291654A (en) * | 2013-06-25 | 2013-09-11 | 济南风机厂有限责任公司 | Efficient energy-saving fan series model |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160625 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |