CN103089701B - Air inlet for 600MW fan for circulating fluidized bed - Google Patents
Air inlet for 600MW fan for circulating fluidized bed Download PDFInfo
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- CN103089701B CN103089701B CN201110331182.7A CN201110331182A CN103089701B CN 103089701 B CN103089701 B CN 103089701B CN 201110331182 A CN201110331182 A CN 201110331182A CN 103089701 B CN103089701 B CN 103089701B
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- air inlet
- air
- axle sleeve
- air duct
- fan
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Abstract
The invention discloses a kind of air inlet for 600MW fan for circulating fluidized bed, connecting band steel, the first flange, flow regulating barrels, baffle plate, back-up ring, the second flange including axle sleeve, air duct, Hough, this air inlet structure is cone circular arc type, reduce air inlet flow losses, its air duct is cone, and air intake surface is conical bottom, and outlet air surface is circular cone top, at outlet air surface place added with guide vane, eliminate intake turbulance and vibration that turbulent flow causes, reduce the return loss of blower fan, improve the efficiency of blower fan.
Description
Technical field
The present invention relates to fan for circulating fluidized bed field, be specifically related to a kind of air inlet for 600MW fan for circulating fluidized bed.
Background technology
Air inlet is the vitals of Fan Equipment, and effect is to ensure that air-flow is evenly into impeller inlet cross section, reduces flow losses and improves the efficiency of blower fan.Common air inlet includes flange, air duct.
There are some problems in technology and product in common air inlet: without guide vane, it is impossible to improves the efficiency of blower fan；Impeller eye place does not have uniform velocity field, is easily formed vortex；Air inlet is overall, to some big air inlets inconvenience when transport, installation, dismounting.
Summary of the invention
Goal of the invention: in order to overcome prior art impeller porch not have uniform velocity field, the shortcoming being easily formed vortex, it is provided that a kind of reduce blower fan return loss, improve blower fan efficiency for the air inlet of 600MW fan for circulating fluidized bed.
Technical scheme: a kind of air inlet for 600MW fan for circulating fluidized bed, including the axle sleeve in the middle of air inlet, it is arranged on the air duct that described axle sleeve is peripheral, Hough connects band steel, first flange, it is sequentially provided with flow regulating barrels after described air inlet, baffle plate, back-up ring, second flange, described air duct is provided with reinforcement and deflector, described axle sleeve and air duct are fixedly and coaxially connected, the fixing air duct that connects of first flange is connected band steel with Hough, the fixing Hough that connects of second flange connects band steel and flow regulating barrels, reinforcement arranges fixing radially, back-up ring is fixed on baffle plate, deflector and axle sleeve, air duct connects.
As optimization, described air inlet is cone circular arc type air inlet.Reduce air inlet flow losses.
As optimization, described air duct is cone, and the air intake surface of this air duct is conical bottom, and outlet air surface is circular cone top, is provided with guide vane at outlet air surface place.Eliminate intake turbulance and vibration that turbulent flow causes, reduce the return loss of blower fan, improve the efficiency of blower fan.
As optimization, deflector welds with axle sleeve, air duct.
As optimization, described axle sleeve hollow, this axle sleeve is to described reinforcement location.Being empty in the middle of axle sleeve, main shaft can be allowed to pass through, axle sleeve can allow reinforcement position, and strengthens the intensity of air inlet.
As optimization, it is split type that described Hough connects band steel.It is exactly connect Hough in the middle of band steel, to be broked into two bodies, Flange joint can be passed through, it is simple to the transport of blower fan, installation, dismounting.
Beneficial effect: the present invention is for the air inlet of 600MW fan for circulating fluidized bed, and at the air inlet that fan casing, impeller are above installed, air inlet adopts boil on the nape opposite the mouth to be connected with impeller, reduces the return loss of blower fan, improves the efficiency of blower fan.This air inlet structure is cone circular arc type structure, and this cone circular arc type air inlet improves the efficiency of blower fan by flow regulating barrels, deflector, it is ensured that there is uniform velocity field at impeller eye place, without vortex, reduces the return loss of blower fan.
Accompanying drawing explanation
Fig. 1 is front view of the present invention；
Fig. 2 is the A-A cross-sectional view of Fig. 1.
Detailed description of the invention
Below in conjunction with accompanying drawing, the invention will be further described.
Such as Fig. 1, shown in 2, a kind of air inlet for 600MW fan for circulating fluidized bed, including the axle sleeve 1 in the middle of air inlet, it is arranged on the air duct 2 of described axle sleeve 1 periphery, Hough connects band steel 3, first flange 4, flow regulating barrels 5 it is sequentially provided with after described air inlet, baffle plate 6, back-up ring 7, second flange 8, described air duct 2 is provided with reinforcement 9 and deflector 10, described axle sleeve 1 is fixedly and coaxially connected with air duct 2, the first fixing air duct 2 that connects of flange 4 is connected band steel 3 with Hough, the second fixing Hough that connects of flange 8 connects band steel 3 and flow regulating barrels 5, reinforcement 9 arranges fixing radially, back-up ring 7 is fixed on baffle plate 6, deflector 10 and axle sleeve 1, air duct 2 welds, described air inlet is cone circular arc type air inlet, described air duct 2 is cone, the air intake surface of this air duct 2 is conical bottom, outlet air surface is circular cone top, it is provided with guide vane at outlet air surface place, described axle sleeve 1 hollow, described reinforcement 9 is positioned by this axle sleeve 1, it is split type that described Hough connects band steel 3.
Claims (4)
1. the air inlet for 600MW fan for circulating fluidized bed, it is characterized in that: include the axle sleeve (1) in the middle of air inlet, it is arranged on the air duct (2) that described axle sleeve (1) is peripheral, Hough connects band steel (3), first flange (4), flow regulating barrels (5) it is sequentially provided with after described air inlet, baffle plate (6), back-up ring (7), second flange (8), described air duct (2) is provided with reinforcement (9) and deflector (10), described axle sleeve (1) and air duct (2) are fixedly and coaxially connected, the fixing air duct (2) that connects of first flange (4) is connected band steel (3) with Hough, the fixing Hough that connects of second flange (8) connects band steel (3) and flow regulating barrels (5), reinforcement (9) arranges fixing radially, back-up ring (7) is fixed on baffle plate (6), deflector (10) and axle sleeve (1), air duct (2) connects, described air inlet is cone circular arc type air inlet, described air duct (2) is cone, the air intake surface of this air duct (2) is conical bottom, outlet air surface is circular cone top, it is provided with guide vane at outlet air surface place.
2. according to claim 1 for the air inlet of 600MW fan for circulating fluidized bed, it is characterised in that: deflector (10) welds with axle sleeve (1), air duct (2).
3. according to claim 2 for the air inlet of 600MW fan for circulating fluidized bed, it is characterised in that: described axle sleeve (1) hollow, this axle sleeve (1) is to described reinforcement (9) location.
4. according to claim 1 for the air inlet of 600MW fan for circulating fluidized bed, it is characterised in that: described Hough connects band steel (3) for split type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331182.7A CN103089701B (en) | 2011-10-27 | 2011-10-27 | Air inlet for 600MW fan for circulating fluidized bed |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201110331182.7A CN103089701B (en) | 2011-10-27 | 2011-10-27 | Air inlet for 600MW fan for circulating fluidized bed |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103089701A CN103089701A (en) | 2013-05-08 |
| CN103089701B true CN103089701B (en) | 2016-06-29 |
Family
ID=48202684
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201110331182.7A Active CN103089701B (en) | 2011-10-27 | 2011-10-27 | Air inlet for 600MW fan for circulating fluidized bed |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103089701B (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599294Y (en) * | 2002-12-31 | 2004-01-14 | 单既建 | Air-guiding machine |
| CN2846825Y (en) * | 2005-09-23 | 2006-12-13 | 邹韬韵 | Streamlined axial flow fan with conical air outlet tube |
| CN201386671Y (en) * | 2009-04-03 | 2010-01-20 | 浙江双阳风机有限公司 | Axial flow type inducing fan |
| CN101963157A (en) * | 2010-09-30 | 2011-02-02 | 大连理工大学 | High total pressure large-flow wheel disk side beveling type back-ward impeller fan |
| CN201757064U (en) * | 2010-08-12 | 2011-03-09 | 浙江浩龙风机有限公司 | Mixed-flow blower |
| CN201891663U (en) * | 2010-11-15 | 2011-07-06 | 南通大通宝富风机有限公司 | Fan air inlet with anti-abrasion ribs |
| CN202431615U (en) * | 2011-10-27 | 2012-09-12 | 南通大通宝富风机有限公司 | Air inlet for 600MW fan of circulating fluidized bed |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH02196198A (en) * | 1989-01-21 | 1990-08-02 | Nippondenso Co Ltd | Fan for vehicle |
-
2011
- 2011-10-27 CN CN201110331182.7A patent/CN103089701B/en active Active
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2599294Y (en) * | 2002-12-31 | 2004-01-14 | 单既建 | Air-guiding machine |
| CN2846825Y (en) * | 2005-09-23 | 2006-12-13 | 邹韬韵 | Streamlined axial flow fan with conical air outlet tube |
| CN201386671Y (en) * | 2009-04-03 | 2010-01-20 | 浙江双阳风机有限公司 | Axial flow type inducing fan |
| CN201757064U (en) * | 2010-08-12 | 2011-03-09 | 浙江浩龙风机有限公司 | Mixed-flow blower |
| CN101963157A (en) * | 2010-09-30 | 2011-02-02 | 大连理工大学 | High total pressure large-flow wheel disk side beveling type back-ward impeller fan |
| CN201891663U (en) * | 2010-11-15 | 2011-07-06 | 南通大通宝富风机有限公司 | Fan air inlet with anti-abrasion ribs |
| CN202431615U (en) * | 2011-10-27 | 2012-09-12 | 南通大通宝富风机有限公司 | Air inlet for 600MW fan of circulating fluidized bed |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103089701A (en) | 2013-05-08 |
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