CN203321878U - Energy-saving induced draft fan series model - Google Patents
Energy-saving induced draft fan series model Download PDFInfo
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- CN203321878U CN203321878U CN2013203683152U CN201320368315U CN203321878U CN 203321878 U CN203321878 U CN 203321878U CN 2013203683152 U CN2013203683152 U CN 2013203683152U CN 201320368315 U CN201320368315 U CN 201320368315U CN 203321878 U CN203321878 U CN 203321878U
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Abstract
An energy-saving induced draft fan series model comprises a casing, an impeller and an air inlet, wherein the impeller comprises 16 backward plate type blades, an arc-shaped wheel cover, a plate-shaped wheel disc and a hub; the 16 backward plate type blades are distributed uniformly and circumferentially, welded between the arc-shaped wheel cover and the plate-shaped wheel disc and assembled with the hub; the casing and the air inlet adopt welding structures, and the molded line of the structure is a tapered arc converging axially; the outlet diameter of each blade of the impeller 2 is 1000 mm, the inlet diameter is 653 mm, the width is 264 mm, the outlet width is 172 mm, and the outlet angle of each blade is 52.5 degrees; and the outlet diameter of the air inlet 3 is 700 mm, and the width is 437.7 mm. The energy-saving induced draft fan is high in efficiency, low in noise, long in service life and wide in application range.
Description
Technical field
The utility model relates to a kind of blower fan, and specifically a kind of 5-54 type drum draws energy-saving fan 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 the drum of plugging a gap, take, drawing energy-conservation 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
In order to solve the deficiencies in the prior art, the utility model provides a kind of drum to draw the energy-saving fan model, is one of above-mentioned three blower fan series models, and trade name is that the 5-54 drum draws energy-saving fan model.
The utility model solves the technological scheme that its technical problem adopts:
A kind of drum draws energy-saving fan model, comprises casing, impeller and intake grill, and described impeller is comprised of the wheel cap (6) of 16 backward plate blades (5), arc, plate shaped wheel disc (7) and wheel hub (8); 16 backward plate blades (5) are along circumferentially uniform, and be welded between the wheel cap (6) and plate shaped wheel disc (7) of arc, with wheel hub (8), be assembled, the volute body that casing (1) is welded for sheet material, intake grill (3) is welded structure, and its molded line is the cone arc of restraining vertically;
It is characterized in that, described impeller (2) has following size characteristic: outlet diameter is 1000mm, and inlet diameter is 653mm, and width is 264mm, and exit width is 172mm, and blade outlet angle is 52.5 °;
The inlet diameter of described intake grill (3) is 700mm, and width is 437.7mm.
Described casing (1) width is 440mm, and the casing export center is 820mm to the casing center, and the casing outlet is 860mm * 440mm.
Efficient operating point zero dimension performance parameter corresponding to the fan of take is flow coefficient 0.155, pressure coefficient 0.5670, power factor 0.1004, fan efficiency 87.54%.
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, 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 whole-cutaway view of blade wheel structure schematic diagram.
Fig. 3 is the side view of blade wheel structure schematic diagram.
Fig. 4 is the right elevation of Fig. 3.
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.
Embodiment
As shown in Figures 1 to 5,
A kind of 5-54 drum draws energy-saving fan model, and 5-54 wherein is the regulation of quoting in JB/T 8940-1999 " ventilator product type preparation method ", and this model comprises casing, impeller and intake grill.
Impeller is comprised of the wheel cap 6 of 16 backward plate blades 5, arc, plate shaped wheel disc 7 and wheel hub 8; 16 backward plate blades 5 are along circumferentially uniform, and, between the wheel cap 6 that is welded in arc and plate shaped wheel disc 7, with wheel hub 8, are assembled, the volute body that casing 1 is welded for sheet material, and intake grill 3 is welded structure, its molded line is the cone arc of restraining vertically.
Design focal point is the type selecting for size, and impeller 2 has following size characteristic: outlet diameter is 1000mm, and inlet diameter is 653mm, and width is 264mm, and exit width is 172mm, and blade outlet angle is 52.5 °; The inlet diameter of intake grill 3 is 700mm, and width is 437.7mm.Casing 1 width is 440mm, and the casing export center is 820mm to the casing center, and the casing outlet is 860mm * 440mm.
Record by experiment, the efficient operating point zero dimension performance parameter that this blower fan model is corresponding is: flow coefficient 0.155, pressure coefficient 0.5670, power factor 0.1004, fan efficiency 87.54%, and with reference to figure 5.Below by one group of Data Comparison, advantage of the present utility model is described:
For example: certain Iron And Steel Plant's fan design parameter: Pa=101325; ρ=1.2kg/m
3Flow=123900m
3/ h; Total head=9400Pa;
Type selecting: existing optional 5-54 № 15.5D(n=1450r/min)
Table 1 has provided 5-54 № 15.5D and 5-51 № 16D has the dimension performance relatively.
Table 1
| ? | Flow m 3/h | Total head Pa | Impeller adiabatic efficiency % | Impeller power KW |
| 5-51№16D | 123900 | 9509 | 83.1 | 395 |
| 5-54№15.5D | 123900 | 9421 | 87.5 | 370.6 |
| Deviate % | 0 | -0.9 | +4.4 | -6.7 |
Meet as can be seen from Table 1 general flow and pressure, select 5-54 № 15.5D higher by 4.4% than selecting 5-51 № 16D impeller adiabatic efficiency, impeller power descends 6.7%.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.
Blower fan series model of the present utility model belongs to intermediate flow, the medium pressure category, and the highest fan efficiency is 87.54%.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 6-51,5-51,5-47,5-48 be widely applied in fields such as power station, metallurgy for many years.
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. a drum draws energy-saving fan model, comprises casing, impeller and intake grill, and described impeller is comprised of the wheel cap (6) of 16 backward plate blades (5), arc, plate shaped wheel disc (7) and wheel hub (8); 16 backward plate blades (5) are along circumferentially uniform, 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: outlet diameter is 1000mm, and inlet diameter is 653mm, and width is 264mm, and exit width is 172mm, and blade outlet angle is 52.5 °;
The inlet diameter of described intake grill (3) is 700mm, and width is 437.7mm;
Described casing (1) width is 440mm, and the casing export center is 820mm to the casing center, and the casing outlet is 860mm * 440mm.
2. a kind of drum according to claim 1 draws energy-saving fan model, it is characterized in that, corresponding efficient operating point zero dimension performance parameter is: flow coefficient 0.155, pressure coefficient 0.5670, power factor 0.1004, fan efficiency 87.54%.
3. a kind of drum according to claim 1 and 2 draws energy-saving fan model, and the above-mentioned size that it is characterized in that 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 |
|---|---|---|---|
| CN2013203683152U CN203321878U (en) | 2013-06-25 | 2013-06-25 | Energy-saving induced draft fan series model |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2013203683152U CN203321878U (en) | 2013-06-25 | 2013-06-25 | Energy-saving induced draft fan series model |
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| Publication Number | Publication Date |
|---|---|
| CN203321878U true CN203321878U (en) | 2013-12-04 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN2013203683152U Expired - Fee Related CN203321878U (en) | 2013-06-25 | 2013-06-25 | Energy-saving induced draft fan series model |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334952A (en) * | 2013-06-25 | 2013-10-02 | 济南风机厂有限责任公司 | Energy-saving blast blower series model |
-
2013
- 2013-06-25 CN CN2013203683152U patent/CN203321878U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103334952A (en) * | 2013-06-25 | 2013-10-02 | 济南风机厂有限责任公司 | Energy-saving blast blower 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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20131204 Termination date: 20160625 |