CN2230372Y - Conic vane of wear-resistant vane wheel - Google Patents
Conic vane of wear-resistant vane wheel Download PDFInfo
- Publication number
- CN2230372Y CN2230372Y CN 95242896 CN95242896U CN2230372Y CN 2230372 Y CN2230372 Y CN 2230372Y CN 95242896 CN95242896 CN 95242896 CN 95242896 U CN95242896 U CN 95242896U CN 2230372 Y CN2230372 Y CN 2230372Y
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- Prior art keywords
- blade
- vane
- wheel
- utility
- model
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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Abstract
The utility model relates to a conic vane of a wear-resistant vane wheel. The utility model is characterized in that the radial thickness of a vane (2) can be gradually increased from an air outlet to an air inlet; the thickness on the flange can be gradually increased from a wheel cover 3 to a wheel disk 1. The utility model has the remarkable effect of extending 2-3 times of the service life of a vane wheel. The utility model is especially suitable for various blowers with serious dust abrasion.
Description
The utility model relates to centrifugal fan impeller, particularly a kind of wear-resisting tapering blade of impeller.
In the prior art working life of general wear-resisting blower fan shorter, not only maintenance is frequent, more mainly is to have had a strong impact on manufacturing efficiency even jeopardized safety.In order to improve the wear resistance of blower fan, the measure of general normal employing has: (1) is at the local pile-up welding hard alloy of blade an ancient type of spoon, tungsten sulfide layer or can too uprightly answer film; (2) paste ceramic block; (3) at blade suction side pile-up welding hard alloy; (4) surface of blade is heat-treated, increase corresponding hardness; (5) adopt suitable high-abrasive material, as alloyed steel and high manganese steel, high chromium white iron etc.; (6) brushing wear-preventing paint.Described measure is concluded and is still had complex process or improve little defective of life-span.
The purpose of this utility model is to provide a kind of tapering blade of the abrasion proof impeller that can increase the service life.
Fan blade is to connect the wheel disc of draught fan impeller and the main stressed member of wheel cap, and above-mentioned purpose of the present utility model realizes by the structure that changes impeller blade; The tapering blade that is the abrasion proof impeller of the utility model indication is to be fixed on wheel disc and to take turns the centrifugal blade that covers, it is characterized in that: blade thickness diametrically by exhaust outlet to the intake grill progressive additive, the thickness on normal direction by wheel cap to the wheel disc progressive additive.
Said structure of the present utility model is to further specify by accompanying drawing.
The utility model has following accompanying drawing:
Accompanying drawing 1 is an axial part sectioned view of the present utility model;
Accompanying drawing 2 is radial section figure of the present utility model;
Accompanying drawing 3 is E-E sectional drawing of Fig. 2.
Referring to accompanying drawing: blade 2 is weldingly fixed on wheel disc 1 and the wheel cap 3, and wherein to the intake grill progressive additive, its awl base thickness degree a1 is a1 with the ratio of vertex of a cone thickness a2: a2 is 2.5: 1～1.5: 1 to blade 2 thickness diametrically by exhaust outlet; The awl base thickness degree C1 of blade 2 on normal direction is C1 with the ratio of vertex of a cone thickness C 2: C2 is 2: 1～1.5: 1.
The utility model is because to adopt its remarkable result of said structure be 2～3 times of working lifes that prolonged draught fan impeller, the quantity and the quality of blower fan explained hereafter had both been guaranteed, got rid of the unsafe factor in the production process again, also made the reasonable more and simplification of manufacturing process of impeller.
The utility model is applicable to the various blower fan with the wearing and tearing of serious dust, and perhaps working medium has the various blower fan of heavy wear characteristic, the Powder discharging fan in thermal power plant for example, the dusting fan in the steel-making of iron and steel factory, the smoke exhaust fan of sintering, cement plant etc.
Claims (3)
1, a kind of tapering blade of abrasion proof impeller, for being fixed on the centrifugal blade (2) on wheel disc (1) and the wheel cap (3), it is characterized in that: blade thickness diametrically by exhaust outlet to the intake grill progressive additive, the thickness on normal direction by wheel cap (3) to wheel disc (1) progressive additive.
2, the tapering blade of abrasion proof impeller according to claim 1, it is characterized in that blade (2) awl base thickness degree al diametrically and the ratio of vertex of a cone thickness a7 are al: a2 is 2.5～1: 1.5～1.
3, the tapering blade of abrasion proof impeller according to claim 1, it is characterized in that the awl base thickness degree c1 of blade (2) on normal direction and the ratio of vertex of a cone thickness c2 are c1: c2 is 2: 1～1.5～1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242896 CN2230372Y (en) | 1995-03-18 | 1995-03-18 | Conic vane of wear-resistant vane wheel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 95242896 CN2230372Y (en) | 1995-03-18 | 1995-03-18 | Conic vane of wear-resistant vane wheel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2230372Y true CN2230372Y (en) | 1996-07-03 |
Family
ID=33883752
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 95242896 Expired - Fee Related CN2230372Y (en) | 1995-03-18 | 1995-03-18 | Conic vane of wear-resistant vane wheel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2230372Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal 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 |
-
1995
- 1995-03-18 CN CN 95242896 patent/CN2230372Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101922468A (en) * | 2010-03-24 | 2010-12-22 | 南通大通宝富风机有限公司 | Impeller of centrifugal 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 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |