CN2031852U - Wing type energy-saving double-suction centrifugal fan - Google Patents
Wing type energy-saving double-suction centrifugal fan Download PDFInfo
- Publication number
- CN2031852U CN2031852U CN 88212085 CN88212085U CN2031852U CN 2031852 U CN2031852 U CN 2031852U CN 88212085 CN88212085 CN 88212085 CN 88212085 U CN88212085 U CN 88212085U CN 2031852 U CN2031852 U CN 2031852U
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- CN
- China
- Prior art keywords
- impeller
- blower fan
- end plate
- wing type
- blade
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- Expired - Lifetime
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Abstract
The utility model discloses a wing type energy-saving double-suction centrifugal fan, comprising a spiral casing (1) and an impeller (7). The wing type energy-saving double-suction centrifugal fan is characterized in that the spiral casing (1) adopts logarithmic spiral wires to reduce the vortex flow and the noise; the centre part of the impeller (7) is provided with a symmetrical impeller core disk (4); wing type vanes (9) are uniformly distributed on the both sides of the core disk along the circumference, and accordingly, a double air suction passage can be generated. The utility model has the advantages of high efficiency, advanced design, reasonable structure, small size, light weight, small noise, and large air quantity. When the air quantity is 80000m+[3]/h, and the air pressure is 160 mmh-[2]o, the needed power is 35kw, however, the existing fan needs 55kw power under the same condition.
Description
The present invention relates to a kind of energy-conservation double-suction centrifugal pump blower fan.
The big blower fan of low pressure that uses in producing at present as 4-72-11 and T4-72 series centrifugal blower, is single suction wind blower fan, and promptly impeller is a single impeller, and its blade employing veneer bending-type, and spiral case adopts Archimedes spiral.The main deficiency of above-mentioned blower fan is that volume is big, noise is big, power consumption is big.
The objective of the invention is to improve the efficient of blower fan, propose that a kind of volume is little, power consumptive province, noise is little, air quantity is big novel energy-conserving blower fan, to overcome deficiency of the prior art.
Main points of the present invention are: make the spiral case of blower fan into advanced logarithmic spiral by Archimedes spiral, the impeller of blower fan adopts the double suction fan blade, and its blade is the palintrope wing blade, to improve the efficient of blower fan.
The invention will be further described below in conjunction with accompanying drawing.
Fig. 1 is an axial schematic representation of the present invention;
Fig. 2 is the A-A sectional drawing of Fig. 1;
Fig. 3 is the blade wheel structure schematic representation;
Fig. 4 is the blade schematic representation.
Among the figure, 1-spiral case, 2-impeller outer end plate, 3-spiral case end plate, 4-bead filler dish, 5-Vee pulley V, 6-impeller shaft, 7-impeller, 8-base plate, 9-blade, 10-disk.
With reference to accompanying drawing, the present invention mainly is made up of spiral case (1), impeller (7), impeller shaft (6) etc. Wherein, spiral case (1) adopts logatithmic spiral, can reduce vortex flow, reduces noise, to overcome the existing big deficiency of Archimedes spiral noise; Impeller (7) is made up of impeller outer end plate (2), blade (9), impeller shaft (6), and sets up a bead filler dish (4) at impeller (7) middle part. Impeller outer end plate (2) is positioned at the two ends of impeller (7), and perpendicular with impeller shaft (6), its shape is similar to the non-bottom flower pot shape; Bead filler dish (4) is a circular discs, and this dish is perpendicular with impeller shaft (6), and equates with the distance of both sides impeller outer end plates (2), namely about (with impeller shaft) left-right symmetry, thereby created advantage to quiet dynamic balancing; The diameter of core dish (4) is less than the diameter of impeller outer end plate (2), and its periphery is that disk (10) is in order to fixed blade (9); Blade (9) makes the palintrope wing type into by existing single plate bending formula, is namely formed by a metallic plate doubling bending, and its cross section is the airfoil (see figure 4). Whole impeller (7) is to be uniformly distributed along the circumference by the disk (10) of some blades (9) in bead filler dish (4) both sides to form, a bigger end of blade is fixed on the disk (10), again disk (10) is fixed on the bead filler dish (4) with bolt, is welded in the inboard of impeller outer end plate (2) than small end. Like this, because blade (9) all is equipped with in core dish (4) both sides, thereby produce double suction wind passage, improved the efficient of blower fan. The blade of bead filler dish (4) both sides is taked to offset and is arranged, to reduce vortex flow.
The wind loss that is in operation for reduce blower fan as far as possible further improves fan efficiency, and the present invention in 1.5 millimeters, is preferably 1.0 millimeters with the clearance control between impeller outer end plate (2) and the spiral case end housing (3). The shape of spiral case end plate (3) is identical with impeller outer end plate (2), is the non-bottom flower pot shape also. Existing blower fan herein clearance control is not tight, varies, and has affected the efficient of blower fan. In addition, also should control spiral case (1) width is more than impeller (7) the effective width twice.
During use, by the driven by motor V belt, by Belt Drive belt pulley (5), belt pulley (5) is again by linking bond impeller axle (6), and impeller shaft (6) passes through linking bond and impeller (7) again, rotates and air blast.
Blower fan of the present invention thereby has advantages such as machine volume is little, in light weight, noise is little, air quantity is big because advanced design, rational in infrastructure and each scale of components are coordinated, and especially has obvious energy-saving effect.A kind of 85000m of the present invention
3The blower fan of/h air quantity is when air quantity is 80000m
3/ h, blast are 160mmH
2During O, used power has only 35KW, and 4-72-11 that uses at present or T4-72 series blower fan, when air quantity is 80000m
3/ h, blast are 160mmH
2During O, need power 55KW.The present invention is at 80000m
3In the test in the/h purification metal air conditioner, when two typhoon machines started simultaneously, after tested, its maximum noise was 65 decibels, existing 80000m
3/ h purifies the metal air conditioner, and its noise is more than 85 decibels.
Claims (4)
1, the energy-conservation double-suction centrifugal pump blower fan of a kind of wing formula, form by spiral case (1), impeller (7), impeller (7) comprises impeller outer end plate (2), impeller shaft (6), blade (9), it is characterized in that spiral case (1) adopts logarithmic spiral, and establish at impeller (7) middle part one with the core dish (4) of impeller symmetry, blade (9) is a palintrope wing formula, its cross section is an airfoil, the arrangement of impeller (7) upper blade is to be uniformly distributed along the circumference in bead filler dish (4) both sides by some airfoil blades (9) to form, and the blade of both sides (9) is taked to offset and arranged.
2, blower fan according to claim 1 is characterized in that the gap between impeller outer end plate (2) and the spiral case end plate (3) is 1.5 millimeters.
3, blower fan according to claim 2 is characterized in that the gap between impeller outer end plate (2) and the spiral case end plate (3) is 1 millimeter.
4, blower fan according to claim 1 is characterized in that spiral case (1) width is more than the twice of impeller (7) Effective face width.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212085 CN2031852U (en) | 1988-01-26 | 1988-01-26 | Wing type energy-saving double-suction centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 88212085 CN2031852U (en) | 1988-01-26 | 1988-01-26 | Wing type energy-saving double-suction centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2031852U true CN2031852U (en) | 1989-02-01 |
Family
ID=4845430
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 88212085 Expired - Lifetime CN2031852U (en) | 1988-01-26 | 1988-01-26 | Wing type energy-saving double-suction centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2031852U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477998A (en) * | 2010-11-30 | 2012-05-30 | 湖北双剑鼓风机制造有限公司 | High-pressure high-flow flue gas desulfurization centrifugal draught fan |
| CN103089698A (en) * | 2011-10-27 | 2013-05-08 | 南通大通宝富风机有限公司 | Impeller for centrifugal fan of 600MW supercritical circulating fluidized bed |
| CN113464472A (en) * | 2021-08-04 | 2021-10-01 | 镇江市丹徒区粮机厂有限公司 | Energy-saving plateau fan structure |
-
1988
- 1988-01-26 CN CN 88212085 patent/CN2031852U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102477998A (en) * | 2010-11-30 | 2012-05-30 | 湖北双剑鼓风机制造有限公司 | High-pressure high-flow flue gas desulfurization centrifugal draught fan |
| CN103089698A (en) * | 2011-10-27 | 2013-05-08 | 南通大通宝富风机有限公司 | Impeller for centrifugal fan of 600MW supercritical circulating fluidized bed |
| CN113464472A (en) * | 2021-08-04 | 2021-10-01 | 镇江市丹徒区粮机厂有限公司 | Energy-saving plateau fan structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C15 | Extension of patent right duration from 15 to 20 years for appl. with date before 31.12.1992 and still valid on 11.12.2001 (patent law change 1993) | ||
| RN01 | Renewal of patent term | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |