CN103277337A - High-efficiency and energy-saving fan series model - Google Patents
High-efficiency and energy-saving fan series model Download PDFInfo
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- CN103277337A CN103277337A CN2013102568363A CN201310256836A CN103277337A CN 103277337 A CN103277337 A CN 103277337A CN 2013102568363 A CN2013102568363 A CN 2013102568363A CN 201310256836 A CN201310256836 A CN 201310256836A CN 103277337 A CN103277337 A CN 103277337A
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Abstract
A high-efficiency and energy-saving fan series model comprises a fan casing, an impeller and an air inlet. The impeller is composed of 16 backward plate type blades, an arc-shaped impeller cover, a flat-plate-shaped impeller disc and an impeller hub. The 16 backward plate type blades are evenly distributed on the periphery of the impeller, welded between the arc-shaped impeller cover and the flat-plate-shaped impeller disc, and assembled with the impeller hub to form the impeller. The fan casing and the air inlet are of welded structures, and the profile of the air inlet is of a taper arc shape which shrinks in the axial direction of the air inlet. The blade outlet diameter of the impeller 2 is 1200 mm, the blade inlet diameter is 544.8 mm, the blade width is 217.2 mm, the blade outlet width is 116.4 mm, the blade outlet angle is 53 degrees, the inlet diameter of the air inlet 3 is 710 mm, and the width of the air inlet is 245.3 mm. The high-efficiency and energy-saving fan series model has high efficiency, low noises, a long service life and a wide application range.
Description
Technical field
The present invention relates to a kind of blower fan, specifically is the energy-efficient blower fan series model of a kind of 7-26 type.
Background technique
Along with high speed development of national economy, the quickening of modernization construction increases sharply to the demand of all kinds blower fan.But shortcomings such as existing some blower fan series exists volume big at present, and fan performance is not good, and efficient is low, and it is big to consume energy.For satisfying China's rapid economy development to the demand of blower fan, improve the technical merit of blower fan product, implement national information portion 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 the exploitation of blower fan design software, application and the experimental study ability of internal class, combination among the strong ones, set up the project in April, 2009, blower fan series type spectrum at existing most manufacturer production, in line with plugging a gap, being target with energy-efficient, and three blower fan series models are planned and developed to the principle that replaces broad-spectrum other series product as far as possible.By the time in 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 finished this project.Three blower fan series models have all reached re-set target.
Summary of the invention
The purpose of this invention is to provide the energy-efficient blower fan model of a kind of 7-26, be one of above-mentioned three blower fan series models, trade name is the energy-efficient blower fan series model of 7-26.
The technical solution adopted for the present invention to solve the technical problems is: a kind of energy-efficient blower fan series model, comprise casing, impeller and intake grill, described impeller by after 16 to template blade (5), the wheel cap of arc (6), plate shaped wheel disc (7) and wheel hub (8) are formed, circumferentially uniform along axis of rotation to template blade (5) after 16, and be welded between the wheel cap (6) and plate shaped wheel disc (7) of arc, be assembled with wheel hub (8), the volute body that casing (1) is welded for sheet material, intake grill (3) is welded structure, its molded lines is the awl arc of restraining vertically, it is characterized in that, described impeller (2): the blade exit diameter is 1200mm, and inlet diameter is 544.8mm, and width is 217.2mm, exit width is 116.4mm, and blade outlet angle is 53 °;
The inlet diameter of described intake grill (3) is 710mm, and width is 245.3mm.
Described casing (1) width is 291mm, and the casing export center is that 804.7mm, casing outlet are 646mm * 291mm to the casing center.
Corresponding efficient operating point zero dimension performance parameter is: flow coefficient 0.0531, pressure coefficient 0.7066, power factor 0.0427, fan efficiency 87.8%.
The above-mentioned size of the flow passage component of described impeller (2), intake grill (3) and casing (1) is amplified on year-on-year basis or is dwindled and make series product.
The present invention has the following advantages:
1, efficient height and efficient region are wide, energy-conservation, noise is low.
2, blade import wearing and tearing are little, prolong impeller working life.
3, impeller is back to the template blade, so motor is difficult for overload.
4, easy to process.
5, of many uses.
Description of drawings
Fig. 1 is a kind of structural representation of the present invention.
Fig. 2 is the complete section of blade wheel structure schematic representation.
Fig. 3 is the side view of blade wheel structure schematic representation.
Fig. 4 is the right elevation of Fig. 1.
Fig. 5 is zero dimensional performance curve figure of the present invention.Wherein Φ is flow coefficient, and Ψ is coefficient of total pressure, and λ is power factor, and η r is impeller power.
Among the figure: 1 casing, 2 impellers, 3 intake grills, 4 transmission groups, 5 blades, 6 wheel caps, 7 wheel discs,
8 wheel hubs.
Embodiment
To shown in Figure 5, the energy-efficient blower fan series model of 7-26 (№ 12 models), 7-26 wherein are the regulations of quoting among the JB/T8940-1999 " ventilator product type preparation method ", comprise casing 1, impeller 2, intake grill 3 and transmission group 4 as Fig. 1.
Described impeller is formed to the wheel cap 6 of template blade 5, arc, plate shaped wheel disc 7 and wheel hub 8 after 16.After 16 to template blade 5 along circumferentially uniform, and be welded between the wheel cap 6 and plate shaped wheel disc 7 of arc, be assembled with wheel hub 8.
The flow passage component major character:
Design focal point is the type selecting for size, and impeller 2 has following size characteristic: the blade exit diameter is 1200mm, and inlet diameter is 544.8mm, and width is 217.2mm, and exit width is 116.4mm, and blade outlet angle is 53 °;
The inlet diameter of described intake grill 3 is 710mm, and width is 245.3mm.
The width of described casing 1 is 291mm, and the casing export center is that 804.7mm, casing outlet are 646mm * 291mm to the casing center.
Record zero dimensional performance curve and the parameter attribute of this blower fan model correspondence by experiment: flow coefficient 0.0531, pressure coefficient 0.7066, power factor 0.0427, fan efficiency 87.8%.
Because product line designs by modeling, so the above-mentioned flow passage component size of impeller, intake grill and casing can amplify on year-on-year basis or dwindle and make series product, all within protection.
The type selecting advantage:
For example: certain Iron And Steel Plant's blower fan design parameter: Pa=101325; ρ=1.2kg/m
3Flow=38163m
3/ h; Total head=9100Pa;
Type selecting: existing optional 7-26 № 14D(n=1450r/min)
Table 1 has provided 7-26 № 14D and 6-31 № 15D has the dimension performance relatively.
Table 1
| ? | Flow m 3/h | Total head Pa | Impeller adiabatic efficiency % | Impeller power KW |
| 6-31№15D | 38163 | 9530 | 80.9 | 124.9 |
| 7-26№14D | 38163 | 9130 | 87.6 | 110.5 |
| Deviate % | 0 | -4.38 | +6.7 | -13.03 |
Satisfy general flow and pressure as can be seen from Table 1, it is higher by 6.7% than selecting 6-31 № 15D impeller adiabatic efficiency to select 7-26 № 14D, and impeller power descends and reaches 13.03%.And plane No. reduces, and not only can save material, reduces cost.Can also reduce the rotary inertia GD of rotor
2, the critical speed of rotation of reduction rotor prolongs bearing life, increases impeller intensity.
Purposes of the present invention:
Blower fan series model of the present invention belongs to middle small flow, the Intermediate High Pressure category, and the highest fan efficiency is 87.8%.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, sintering main exhauster etc. with the blower fan of this modeling design.In Fan Selection, show its advantage that performance is good, efficient is high.And can replace having obtained in fields such as power station, metallurgy for many years the most of operating point of 6-31 of extensive use.
Embodiment recited above is described preferred implementation of the present invention; be not that scope of the present invention is limited; design under the prerequisite of spirit not breaking away from the present invention; the relevant technical staff in the field all should expand as in the determined protection domain of claims of the present invention various distortion of the present invention and improvement.
Claims (3)
1. energy-efficient blower fan series model, comprise casing, impeller and intake grill, described impeller by after 16 to template blade (5), the wheel cap of arc (6), plate shaped wheel disc (7) and wheel hub (8) are formed, circumferentially uniform along axis of rotation to template blade (5) after 16, and be welded between wheel cap (6) and the wheel disc (7), be assembled with wheel hub (8), the volute body that casing (1) is welded for sheet material, intake grill (3) is welded structure and the awl arc of its molded lines for restraining vertically, it is characterized in that
Described impeller (2) has following size characteristic: the blade exit diameter is 1200mm, and inlet diameter is 544.8mm, and width is 217.2mm, and exit width is 116.4mm, and blade outlet angle is 53 °;
The inlet diameter of described intake grill (3) is 710mm, and width is 245.3mm;
Described casing (1) width is 291mm, and the casing export center is that 804.7mm, casing outlet are 646mm * 291mm to the casing center.
2. a kind of energy-efficient blower fan series model according to claim 1 is characterized in that, corresponding efficient operating point zero dimension performance parameter is: flow coefficient 0.0531, pressure coefficient 0.7066, power factor 0.0427, fan efficiency 87.8%.
3. a kind of energy-efficient blower 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) is amplified on year-on-year basis or dwindled and make series product.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100181A (en) * | 2016-07-26 | 2016-11-09 | 浙江高领新能源科技有限公司 | A kind of oil-free vortex air compressor machine external rotor electric machine |
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| JPH07224796A (en) * | 1994-02-07 | 1995-08-22 | Nippondenso Co Ltd | Centrifugal sirocco fan |
| CN201382016Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Novel energy-saving fan |
| CN201827144U (en) * | 2010-08-03 | 2011-05-11 | 沈阳鼓风机研究所(有限公司) | Energy-saving boiler drum induced-draft fan series model |
| CN102345633A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving fan-series model for circulating fluidized bed boiler |
| CN102345632A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving boiler forced and induced draft fan series model |
| CN203321881U (en) * | 2013-06-25 | 2013-12-04 | 济南风机厂有限责任公司 | Efficient and energy-saving fan series model |
-
2013
- 2013-06-25 CN CN2013102568363A patent/CN103277337A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07224796A (en) * | 1994-02-07 | 1995-08-22 | Nippondenso Co Ltd | Centrifugal sirocco fan |
| CN201382016Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Novel energy-saving fan |
| CN201827144U (en) * | 2010-08-03 | 2011-05-11 | 沈阳鼓风机研究所(有限公司) | Energy-saving boiler drum induced-draft fan series model |
| CN102345633A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving fan-series model for circulating fluidized bed boiler |
| CN102345632A (en) * | 2010-08-03 | 2012-02-08 | 沈阳鼓风机研究所(有限公司) | Energy-saving boiler forced and induced draft fan series model |
| CN203321881U (en) * | 2013-06-25 | 2013-12-04 | 济南风机厂有限责任公司 | Efficient and energy-saving fan series model |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106100181A (en) * | 2016-07-26 | 2016-11-09 | 浙江高领新能源科技有限公司 | A kind of oil-free vortex air compressor machine external rotor electric machine |
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Application publication date: 20130904 |