CN102345636A - Energy-saving circulating fluidized bed boiler fan series model - Google Patents
Energy-saving circulating fluidized bed boiler fan series model Download PDFInfo
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- CN102345636A CN102345636A CN2010102434505A CN201010243450A CN102345636A CN 102345636 A CN102345636 A CN 102345636A CN 2010102434505 A CN2010102434505 A CN 2010102434505A CN 201010243450 A CN201010243450 A CN 201010243450A CN 102345636 A CN102345636 A CN 102345636A
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- impeller
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- air inlet
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Abstract
An energy-saving circulating fluidized bed boiler fan series model comprises a housing, an impeller, an air inlet and a drive set, and is characterized in that the impeller comprises twelve blades, an impeller cover, an impeller disk and an impeller hub. The twelve backward plate-like blades are circumferentially and evenly distributed, and are welded between the conical arc-shaped impeller cover and the flat impeller disk, which are mounted on the impeller hub. The housing is a volute formed by welded plates. The air inlet is of a welded structure, and the profile of the air inlet is shaped like a conical arc which is axially converged. An oblique cone type deflected air inlet plus an air intake box can be mounted at the position of the air inlet. The air intake box is a part which transforms radial air flow into axial air flow, the air inlet is the oblique cone type deflected air inlet, and both the air intake box and the air inlet are of steel plate-welded structures. The model has the advantages of wide application range, high efficiency, energy saving, wide efficiency range and low noise. The dynamic pressure difference between the inlet and the outlet is small, and the model number can be reduced. The difference between the performance of the F type and the performance of the D type is little, and the model is an ideal model in the low-flow, medium-high pressure category.
Description
Technical field
The present invention relates to a kind of blower fan, specifically relate to a kind of 6-24 type circulating fluidized bed boiler energy-saving fan series model.
Background technique
The blower fan great majority of Domestic market sale at present are the 60 to 70's development product, like series product such as 4-73,4-72,9-19,9-26,5-48,6-48, T4-72, also use widely in every field so far.Some enterprises are not through still satisfying growing market demand far away with universities and colleges' associating or introduction and some new products of independent development in recent years, also have very big potentiality to dig for the fan performance level in some field.Serious competition form in the face of blower fan market only improves constantly the blower fan technical merit, just can be competitive.And the aeroperformance of blower fan is its most important component.One typhoon machine structure is good again; Appearance quality is good again; If performance does not reach customer requirements; Can cause very big economic loss to the user; To entrust mechanical industry blower fan product quality supervision inspection center to carry out the case of technology ruling a lot of because of the blower fan quality problems in recent years, and problem much all goes out aspect aeroperformance.In the Selection and Design process, in order to satisfy user's performance parameter, manufactory selects in existing sample less than suitable blower fan type in addition, and certain model blower fan is improved, and does not very hold again.Because type selecting is improper, needs only pipe network when blower fan turns round at the scene and change blower fan slightly with regard to surge.Although the flow pressure of blower fan can be chosen sometimes, because not in efficient district, or original peak efficiency is just not high, selects for use power of motor very big, can't compete with other competitive bidding units, so just loses the chance of competitive bidding.
For satisfying the demand of China's rapid economy development to 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.Shenyang Blower research institute is with the fan design of internal class and the advantage of experimental study ability; Set up the project in March, 2005; Blower fan series type spectrum to existing most manufacturer production; In line with plugging a gap, being target with energy-efficient; And the principle that replaces broad-spectrum other series product is as far as possible developed this blower fan series model.Through the time in 5 years, Shenyang Blower research institute was through manufacturing and designing, and carried out test of many times research, accomplished this project.This blower fan series model has reached re-set target.
Summary of the invention
The object of the invention provides circulating fluidized bed boiler energy-saving fan series model, and trade name is a 6-24 circulating fluidized bed boiler energy-saving fan series model.
The technological scheme that adopts is:
Circulating fluidized bed boiler energy-saving fan series model comprises casing, impeller, intake grill and transmission group, it is characterized in that: said impeller is formed to template blade, awl arc wheel cap, plate shaped wheel disc and wheel hub after 12.Circumferentially be uniformly distributed with to template blade edge after 12, and be welded between awl arc wheel cap and the plate shaped wheel disc, be assembled with wheel hub.Casing is the volute body that sheet material is welded, and intake grill is a welded structure, and its molded lines is the awl of convergent vertically arc.
Can install the inclined to one side intake grill+inlet box of oblique conic at above-mentioned intake grill place.Said inlet box is to change air-flow the parts of axial flow into by Radial Flow, and intake grill is the inclined to one side intake grill of oblique conic, and inlet box and intake grill are welded-steel plate construction.
Said transmission group comprises main shaft, bearing housing etc., is known technology.
Purposes of the present invention:
Blower fan series model of the present invention belongs to small flow, mesohigh category.When not bringing gas tank into, the highest fan efficiency is 82.3%.When bringing gas tank into, the highest fan efficiency is 79.39%.The blower fan series blower fan of using the design of this modeling is applicable to 35-410 ton/time circulating fluidized bed boiler primary air fan, overfire air fan and high-head induced draught fan, high pressure forced ventilation, gas-blowing engine, sintering main exhauster etc.
Because product line designs by modeling, so any plane No. product of flow passage component design is all within protection, can amplify on year-on-year basis or dwindles and process series product by said impeller, suction port, casing size.The type selecting advantage
A, performance advantage
Give an example 1: certain circulating fluidized bed boiler fan design parameter: Pa=101325Pa; ρ=1.2kg/m3 flow=46345 (m3/h); Total head=7484Pa;
Type selecting scheme 1:, satisfy above parameter and can only select 7-16No10.6D (n=2980r/min) if there is not the 6-24 series model
Type selecting scheme 2: the 6-24 series model has been arranged now, here at certain non dimensional curve section (former blank) optional 6-24No10D (n=2980r/min).
Table 1 has provided under same rotating speed and the import density, the performance comparison result of 6-24No10D and 7-16No10.6D.
Table 1
Find out that from table 1 for satisfying design parameter, as select 7-16No10.6D, internal efficiency is 65%, is 82.3% and select the 6-24No10D impeller adiabatic efficiency, impeller adiabatic efficiency can improve 26.6%, and impeller power can reduce by 21%, can significantly save the energy.And plane No. is little, but material-saving, reduces cost.The exit port area ratio of 6-24 blower fan is 0.64 in addition, and the exit port area ratio of 7-16 blower fan is 0.47, and described same with the front, for satisfying same differential static pressure, 6-24 can reduce plane No..
B, F formula are compared performance with the D formula and are differed little
At same flow point, fan design is the F formula than D formula pressure and a lot of problems of decrease in efficiency (general pressure and decrease in efficiency about 8%) to the small flow blower fan, we to the 6-24No8 model design F formula structure, promptly bring gas tank, radial air inlet into.Table 2 has provided the F formula and the D formula zero dimension performance comparison of 7 operating points.
Table 2
Can find out that by table 27 operating point F formulas compare with the D formula, pressure is maximum to descend 2.3%, and impeller adiabatic efficiency is maximum to descend 4.9%.Changed the small flow blower fan, when F formula (radial air inlet) because the impeller inlet flow field is inhomogeneous and axle to the obstruction of inlet air flow, the situation that pressure and decrease in efficiency are a lot.
The present invention has following advantage
1, of many uses, it is blank to have filled up ventilator series type spectrum.
2, impeller is back to the template blade, so motor is difficult for overload.
3, energy-efficient, efficiently distinguish wide, noise is low.
4, outlet and import dynamic pressure difference are little, can reduce plane No..
5, blade import wearing and tearing are little, can prolong the working life of impeller.
6, easy to process.
7, F formula performance and D formula performance differ little.
It is the ideal model of small flow, mesohigh category.
Description of drawings
Fig. 1 is a kind of example structure schematic representation of the present invention.
Fig. 2 is the A-A view of Fig. 1.
Fig. 3 is the blade wheel structure schematic representation.
Fig. 4 is the right elevation of Fig. 3.
Fig. 5 is the blower fan model structure schematic representation that is equiped with inlet box.
Fig. 6 is 6-24 circulating fluidized bed boiler blower fan No8 model zero dimensional performance curve figure, and wherein Φ is that flow coefficient, Ψ are that coefficient of total pressure, λ are power factor, η r impeller adiabatic efficiency.
Embodiment
Embodiment one
Circulating fluidized bed boiler energy-saving fan series model (NO8 type) for not bringing gas tank type (D formula) into, comprises casing 1, impeller 2, intake grill 3 and transmission group 4, and transmission group 4 comprises main shaft, bearing housing etc., is known technology.It is characterized in that: said impeller is formed to template blade 5, awl arc wheel cap 6, plate shaped wheel disc 7 and wheel hub 8 after 12.Circumferentially be uniformly distributed with to template blade edge after 12, and be welded between awl arc wheel cap 6 and the plate shaped wheel disc 7, be assembled with wheel hub 8.The volute body 1 that casing 1 is welded for sheet material, intake grill 3 is a welded structure, its molded lines is the awl of convergent vertically arc.
Embodiment two
Circulating fluidized bed boiler energy-saving fan series model (NO8 type) for bringing gas tank type (F formula) into, comprises casing 1, impeller 2, intake grill 3, inlet box 9 and transmission group 4.Impeller 1 and casing 2, transmission group 4 are structurally identical when not bringing gas tank into.Its inlet box is to change air-flow the parts of axial flow into by Radial Flow, and intake grill is the inclined to one side intake grill of oblique conic, and inlet box 9 is welded-steel plate construction with intake grill 3.
The flow passage component major character:
(1) impeller
The blade exit diameter is that 800mm, inlet diameter are that 340mm, width are that 108mm, exit width are that 37mm, blade outlet angle are 50 °.
(2) intake grill
When not bringing gas tank into, inlet diameter is that 400mm, width are 260mm.
When bringing gas tank into, inlet diameter is that 490mm, width are 155mm, import and export between the axis apart from being 91mm.
(3) casing
Width 183mm, casing export center are that 540.3mm, casing outlet are 438.8mmX183mm to the casing center.
(4) inlet box
Inletpiston is 584mm to the outlet axial line distance.Import is 608mmX256mm.
Zero dimensional performance curve and parameter attribute: when not bringing gas tank into, flow coefficient 0.0396, pressure coefficient 0.5466, power factor 0.0263, fan efficiency 82.3%; When bringing gas tank into, flow coefficient 0.0396, pressure coefficient 0.5431, power factor 0.0271, fan efficiency 79.39%.
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 process series product, all within protection.
Claims (4)
1. circulating fluidized bed boiler energy-saving fan series model; Comprise casing (1), impeller (2), intake grill (3); It is characterized in that: said impeller is formed to template blade (5), awl arc wheel cap (6), plate shaped wheel disc (7) and wheel hub (8) after 12; Circumferentially be uniformly distributed with to template blade (5) edge after 12; And be welded between awl arc wheel cap (6) and the plate shaped wheel disc (7); Be assembled with wheel hub (8); The volute body of casing (1) for being welded by sheet material; Intake grill (3) is a welded structure, is equiped with inlet box (9) or does not bring bellows (9) in intake grill (3) outer end; When intake grill (3) outer end was equiped with inlet box (9), intake grill (3) was the inclined to one side intake grill of oblique conic; When inlet box was not installed in intake grill (3) outer end, the molded lines of intake grill (3) was the awl of convergent vertically arc.
2. circulating fluidized bed boiler energy-saving fan series model according to claim 1 is characterized in that:
1. impeller
The blade exit diameter is that 800mm, inlet diameter are that 340mm, width are that 108mm, exit width are that 37mm, blade outlet angle are 50 °;
2. intake grill
When not bringing gas tank into, inlet diameter is that 400mm, width are 260mm;
When bringing gas tank into, inlet diameter is that 490mm, width are 155mm, import and export between the axis apart from being 91mm;
3. casing
Width 183mm, casing export center are that 540.3mm, casing outlet are 438.8mmX183mm to the casing center;
When 4. bringing gas tank into, the inletpiston of inlet box (9) is 584mm to the outlet axial line distance, and import is 608mmX256mm.
3. circulating fluidized bed boiler energy-saving fan series model according to claim 2; Corresponding efficient operating point zero dimension performance parameter is: when not bringing gas tank into, and flow coefficient 0.0396, pressure coefficient 0.5466; Power factor 0.0263, fan efficiency 82.3%; When bringing gas tank into, flow coefficient 0.0396, pressure coefficient 0.5431, power factor 0.0271, fan efficiency 79.39%.
4. circulating fluidized bed boiler energy-saving fan model according to claim 2 is characterized in that the above-mentioned flow passage component size by said impeller (2), intake grill (3), casing (1) and inlet box (9), amplifies on year-on-year basis or dwindles and process series product.
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| CN201010243450.5A CN102345636B (en) | 2010-08-03 | 2010-08-03 | Energy-saving circulating fluidized bed boiler fan series model |
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| CN201010243450.5A CN102345636B (en) | 2010-08-03 | 2010-08-03 | Energy-saving circulating fluidized bed boiler fan series model |
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| CN102345636B CN102345636B (en) | 2014-04-02 |
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Cited By (4)
| 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 |
| CN104791262A (en) * | 2015-03-28 | 2015-07-22 | 重庆通用工业(集团)有限责任公司 | Mechanical vapor recompression (MVR) energy-saving draught fan series model |
| CN105822567A (en) * | 2016-04-08 | 2016-08-03 | 重庆通用工业(集团)有限责任公司 | Coke dry quenching circulating draught fan model |
| CN106382239A (en) * | 2016-10-14 | 2017-02-08 | 重庆通用工业(集团)有限责任公司 | Anti-adhesion centrifugal ventilation machine |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0741246A1 (en) * | 1995-05-05 | 1996-11-06 | Alcatel SEL Aktiengesellschaft | Radial blower |
| CN201065854Y (en) * | 2007-07-06 | 2008-05-28 | 江阴市宏达风机有限公司 | Backward high pressure centrifugal aeration machine |
| CN201372944Y (en) * | 2009-01-08 | 2009-12-30 | 鞍山市风机二厂 | Induced draft fan used for circulating fluid bed boiler |
| CN201382000Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Fan special for circulating fluidized bed boiler |
| CN201382016Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Novel energy-saving fan |
| CN201810586U (en) * | 2010-08-03 | 2011-04-27 | 沈阳鼓风机研究所(有限公司) | Model for series of energy-saving fans of circulating fluidize bed boiler |
-
2010
- 2010-08-03 CN CN201010243450.5A patent/CN102345636B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP0741246A1 (en) * | 1995-05-05 | 1996-11-06 | Alcatel SEL Aktiengesellschaft | Radial blower |
| CN201065854Y (en) * | 2007-07-06 | 2008-05-28 | 江阴市宏达风机有限公司 | Backward high pressure centrifugal aeration machine |
| CN201372944Y (en) * | 2009-01-08 | 2009-12-30 | 鞍山市风机二厂 | Induced draft fan used for circulating fluid bed boiler |
| CN201382000Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Fan special for circulating fluidized bed boiler |
| CN201382016Y (en) * | 2009-01-08 | 2010-01-13 | 鞍山市风机二厂 | Novel energy-saving fan |
| CN201810586U (en) * | 2010-08-03 | 2011-04-27 | 沈阳鼓风机研究所(有限公司) | Model for series of energy-saving fans of circulating fluidize bed boiler |
Cited By (4)
| 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 |
| CN104791262A (en) * | 2015-03-28 | 2015-07-22 | 重庆通用工业(集团)有限责任公司 | Mechanical vapor recompression (MVR) energy-saving draught fan series model |
| CN105822567A (en) * | 2016-04-08 | 2016-08-03 | 重庆通用工业(集团)有限责任公司 | Coke dry quenching circulating draught fan model |
| CN106382239A (en) * | 2016-10-14 | 2017-02-08 | 重庆通用工业(集团)有限责任公司 | Anti-adhesion centrifugal ventilation machine |
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| CN102345636B (en) | 2014-04-02 |
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