CN103089700B - A kind of draught fan impeller - Google Patents
A kind of draught fan impeller Download PDFInfo
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- CN103089700B CN103089700B CN201310053801.XA CN201310053801A CN103089700B CN 103089700 B CN103089700 B CN 103089700B CN 201310053801 A CN201310053801 A CN 201310053801A CN 103089700 B CN103089700 B CN 103089700B
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- wheel
- wheel cap
- wheel disc
- cap
- endoporus
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Abstract
The object of the invention is to propose a kind ofly stress can be avoided excessive and cause tearing and draught fan impeller that wheel cap import circle destroys of wheel cap endoporus place and wheel disc endoporus place, to improve Security.Draught fan impeller of the present invention comprises blade, wheel disc, wheel cap, wheel cap import circle, reel, and key is that described wheel disc side is connected with annular wheel disc component plate by the mode of riveted joint or plug welding; Wheel cap component ring by taper between described wheel cap with wheel cap import circle is connected, and one end of described wheel cap component ring is welded with wheel cap, and the other end and wheel cap import lap welding connect.Draught fan impeller of the present invention, by arranging simple, the easily manufactured share stress structure of structure, reduces the stress that wheel disc endoporus, wheel cap endoporus and wheel cap import circle bear, ensure that the safe operation of impeller under High Rotation Speed.
Description
Technical field
The invention belongs to fluid machinery class field, be related specifically to a kind of draught fan impeller.
Background technique
Centrifugal blower, as a kind of turbomachine carrying air, is widely used in industrial production and the daily life fields such as aviation, coal, electric power, metallurgy, electronics, automobile, air-conditioning.Impeller is the most important parts of centrifugal blower, and its function is static energy and the kinetic energy of gas by changes mechanical energy.Draught fan impeller is generally made up of blade, wheel disc, wheel cap, reel, operationally, because the impact of centrifugal force, wheel disc, wheel cap are subject to larger active force, because the linear velocity of impeller outer diameter is higher than the linear velocity of other position of impeller, therefore the internal stress that rotary centrifugal force causes is increased gradually by the endoporus of external diameter to wheel cap and wheel disc, often causes tearing of wheel cap endoporus place and wheel disc endoporus place.Wheel cap is because the restriction of process conditions in addition, its joint does not have large arc transition, the stress being conducted to endoporus by wheel cap external diameter can not conduct to whole wheel cap import circle equably, therefore the stress being interconnected place can be made to concentrate, cause stress excessive, import circle is ftractureed, leads to security incident.
Application number be 201010543167.4 patent of invention disclose one not uniform thickness draught fan wheel disc, its thickness of taking turns plate edge is less than the wheel disc thickness of remaining part, can while weight reduction, reduce the rotary inertia of wheel disc, to some extent solve the problem that wheel cap and wheel disc are increased gradually by external diameter to the stress of endoporus, but the difficulty of processing of this kind not disc of constant thickness is large, be processed into predetermined curvilinerar figure to lathe and personnel qualifications high, and and existing not disc of constant thickness have same waste problem of materials.
Summary of the invention
The object of the invention is to propose a kind ofly stress can be avoided excessive and cause tearing and draught fan impeller that wheel cap import circle destroys of wheel cap endoporus place and wheel disc endoporus place, to improve Security.
Draught fan impeller of the present invention comprises blade, wheel disc, wheel cap, wheel cap import circle, reel, and key is that described wheel disc side is connected with annular wheel disc component plate by the mode of riveted joint or plug welding; Wheel cap component ring by taper between described wheel cap with wheel cap import circle is connected, and one end of described wheel cap component ring is welded with wheel cap, and the other end and wheel cap import lap welding connect.
Wheel disc endoporus place addition of wheel disc component plate, the gravitation conducting to wheel disc endoporus by wheel disc external diameter like this can shunt a part to wheel disc component plate, wheel disc component plate is born a part of wheel disk stress, greatly reduce the stress being transmitted to wheel disc endoporus place, improve the axial rigidity of wheel disc simultaneously, improve safety coefficient.And the stress being conducted to the joint of wheel cap and wheel cap import circle by wheel cap external diameter can shunt a part to wheel cap component ring, reduce the stress that wheel cap and wheel cap import circle bear simultaneously, improve the safety coefficient of impeller.
Further, the described endoporus of wheel disc component plate and the inner hole welding of rapid cooling of wheel disc, to ensure that the stress of wheel disc endoporus can be delivered on wheel disc component plate, reduce the stress that wheel disc endoporus bears.
Further, described wheel disc component plate has two, and is individually fixed in the both sides of wheel disc, to ensure the Strenth and stress mean allocation of wheel disc.
Draught fan impeller of the present invention, by arranging simple, the easily manufactured share stress structure of structure, reduces the stress that wheel disc endoporus, wheel cap endoporus and wheel cap import circle bear, ensure that the safe operation of impeller under High Rotation Speed.
Accompanying drawing explanation
Fig. 1 is the structural representation of the draught fan impeller of embodiment 1.
Fig. 2 is the structural representation of the draught fan impeller of embodiment 2.
Embodiment
Contrast accompanying drawing below, by the description to embodiment, the effect and working principle etc. of the specific embodiment of the present invention as the mutual alignment between the shape of involved each component, structure, each several part and annexation, each several part are described in further detail.
Embodiment 1:
As shown in Figure 1, the present embodiment is single ventilating fan impeller, comprise blade 7, wheel disc 1, wheel cap 2, wheel cap import circle 3, reel 4, the both sides of wheel disc 1 are connected with two annular wheel disc component plates 5 by the mode of plug welding, the endoporus of wheel disc component plate 5 and the inner hole welding of rapid cooling of wheel disc 1; Wheel cap component ring 6 by taper between described wheel cap 2 with wheel cap import circle 3 is connected, and one end of described wheel cap component ring 6 is welded with wheel cap 2, and the other end welds with wheel cap import circle 3.
Wheel disc endoporus 8 place addition of wheel disc component plate 5, the gravitation conducting to wheel disc endoporus 8 by wheel disc 1 external diameter like this can shunt a part to wheel disc component plate 5, wheel disc component plate 5 is born a part of wheel disk stress, greatly reduce the stress being transmitted to wheel disc endoporus 8 place, improve the axial rigidity of wheel disc 1 simultaneously, improve safety coefficient.And the stress being conducted to the joint of wheel cap 2 and wheel cap import circle 3 by wheel cap 2 external diameter can shunt a part to wheel cap component ring 6, reduce the stress that wheel cap 2 and wheel cap import circle 3 bear simultaneously, improve the safety coefficient of impeller.
Embodiment 2:
As shown in Figure 2, the present embodiment is two ventilating fan impellers, comprise blade 7, wheel disc 1, wheel cap 2, wheel cap import circle 3, reel 4, the both sides of wheel disc 1 are connected with two annular wheel disc component plates 5 by the mode of riveted joint, the endoporus of wheel disc component plate 5 and the inner hole welding of rapid cooling of wheel disc 1; Wheel cap component ring 6 by taper between described wheel cap 2 with wheel cap import circle 3 is connected, and one end of described wheel cap component ring 6 is welded with wheel cap 2, and the other end welds with wheel cap import circle 3.
Wheel disc endoporus 8 place addition of wheel disc component plate 5, the gravitation conducting to wheel disc endoporus 8 by wheel disc 1 external diameter like this can shunt a part to wheel disc component plate 5, wheel disc component plate 5 is born a part of wheel disk stress, greatly reduce the stress being transmitted to wheel disc endoporus 8 place, improve the axial rigidity of wheel disc 1 simultaneously, improve safety coefficient.And the stress being conducted to the joint of wheel cap 2 and wheel cap import circle 3 by wheel cap 2 external diameter can shunt a part to wheel cap component ring 6, reduce the stress that wheel cap 2 and wheel cap import circle 3 bear simultaneously, improve the safety coefficient of impeller.
Claims (3)
1. a draught fan impeller, comprises blade, wheel disc, wheel cap, wheel cap import circle, reel, it is characterized in that described wheel disc side is connected with annular wheel disc component plate by the mode of riveted joint or plug welding; Wheel cap component ring by taper between described wheel cap with wheel cap import circle is connected, and one end of described wheel cap component ring is welded with wheel cap, and the other end and wheel cap import lap welding connect.
2. draught fan impeller according to claim 1, is characterized in that the described endoporus of wheel disc component plate and the inner hole welding of rapid cooling of wheel disc.
3. draught fan impeller according to claim 1 and 2, is characterized in that described wheel disc component plate has two, and is individually fixed in the both sides of wheel disc.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310053801.XA CN103089700B (en) | 2013-02-20 | 2013-02-20 | A kind of draught fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310053801.XA CN103089700B (en) | 2013-02-20 | 2013-02-20 | A kind of draught fan impeller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089700A CN103089700A (en) | 2013-05-08 |
| CN103089700B true CN103089700B (en) | 2015-11-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310053801.XA Active CN103089700B (en) | 2013-02-20 | 2013-02-20 | A kind of draught fan impeller |
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| CN (1) | CN103089700B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110939589A (en) * | 2019-12-12 | 2020-03-31 | 四川德胜集团钒钛有限公司 | High-temperature-resistant centrifugal fan |
| CN110805573B (en) * | 2019-12-12 | 2021-10-12 | 四川德胜集团钒钛有限公司 | Centrifugal fan |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1206489A1 (en) * | 1984-06-06 | 1986-01-23 | Popov Igor K | Centrifugal wheel |
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal fan |
| CN102454631A (en) * | 2010-10-25 | 2012-05-16 | 天津长光伟业特种风机有限公司 | Fan impellor for improving strength |
| CN102465914A (en) * | 2010-11-15 | 2012-05-23 | 南通大通宝富风机有限公司 | Variable thickness wheel disc for blower |
| CN202280654U (en) * | 2011-10-27 | 2012-06-20 | 南通大通宝富风机有限公司 | Impeller for centrifugal fan of 600 MW supercritical circulating fluidized bed |
| CN203051216U (en) * | 2013-02-20 | 2013-07-10 | 安徽安风风机有限公司 | Fan impeller |
-
2013
- 2013-02-20 CN CN201310053801.XA patent/CN103089700B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| SU1206489A1 (en) * | 1984-06-06 | 1986-01-23 | Popov Igor K | Centrifugal wheel |
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal fan |
| CN102454631A (en) * | 2010-10-25 | 2012-05-16 | 天津长光伟业特种风机有限公司 | Fan impellor for improving strength |
| CN102465914A (en) * | 2010-11-15 | 2012-05-23 | 南通大通宝富风机有限公司 | Variable thickness wheel disc for blower |
| CN202280654U (en) * | 2011-10-27 | 2012-06-20 | 南通大通宝富风机有限公司 | Impeller for centrifugal fan of 600 MW supercritical circulating fluidized bed |
| CN203051216U (en) * | 2013-02-20 | 2013-07-10 | 安徽安风风机有限公司 | Fan impeller |
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| Publication number | Publication date |
|---|---|
| CN103089700A (en) | 2013-05-08 |
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