CN204419694U - Modified model fan impeller system - Google Patents
Modified model fan impeller system Download PDFInfo
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- CN204419694U CN204419694U CN201420699146.5U CN201420699146U CN204419694U CN 204419694 U CN204419694 U CN 204419694U CN 201420699146 U CN201420699146 U CN 201420699146U CN 204419694 U CN204419694 U CN 204419694U
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- bilge
- blade
- turn
- modified model
- impeller system
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Abstract
The utility model discloses a kind of modified model fan impeller system, comprise blower fan, described blower fan is provided with casing and impeller, described impeller comprises the multiple regularly arranged blade be fixed on base plate, and annular cover plate covers the top being fixed on blade, it is characterized in that, described bending blade is in " S " type, integrally connected and composed by turn of bilge before turn of bilge after a section and a section, vane inlet is positioned at the medial extremity of rear turn of bilge, and blade exit is positioned at the outboard end of front turn of bilge.The blade Curve Design of the utility model fan impeller system is scientific and reasonable, effectively reduces power loss, reduces energy consumption, significantly improves the working efficiency of blower fan.
Description
Technical field
The utility model relates to dynamics field, is specially a kind of modified model fan impeller system.
Background technique
Centrifugal pump or fan drags vane rotary by prime mover, the blade convection cell acting on impeller, thus make fluid obtain pressure energy and kinetic energy, and therefore impeller realizes the critical piece that mechanical energy is converted to fluid energy.The pattern of general blade has following three kinds: the sense of rotation that bending direction and the leaf of blade are swung is contrary, is called backward bent vane; The Way out of blade is radial, claims radial blade; The bending direction of blade is identical with the sense of rotation of impeller, is called forward-curved blade.
The power loss of common fan impeller is primarily of the formation such as drag losses and impact loss of the eddy current produced between blade, fluid.The blade curve of impeller, comprises the factor such as shape, angle, directly has influence on the characteristic of gas flow, and rational blade Curve Design effectively can reduce the power loss of blower fan, improves its working efficiency.
Model utility content
Technical purpose of the present utility model is the defect and deficiency that exist for existing blower fan, and provide a kind of modified model fan impeller system, technological scheme disclosed in the utility model is:
A kind of modified model fan impeller system, comprise blower fan, described blower fan is provided with casing and impeller, described impeller comprises the multiple regularly arranged blade be fixed on base plate, and annular cover plate covers the top being fixed on blade, it is characterized in that, described bending blade is in " S " type, integrally connected and composed by turn of bilge before turn of bilge after a section and a section, vane inlet is positioned at the medial extremity of rear turn of bilge, and blade exit is positioned at the outboard end of front turn of bilge.
Technique scheme is further improved and also comprises:
The top of described blade is concave-curve, and described cover plate is set to corresponding concave-curve plate body.
It is the 3rd of 189.9mm the circumferentially that the transition tie point of described rear turn of bilge and front turn of bilge is positioned at radius; The central angle of described rear turn of bilge is 39.67 °, and radius is 163.2mm, and it is first of 64.3mm circumferentially that radius is dropped in the center of circle of rear turn of bilge; The central angle of described front turn of bilge is 19.35 °, and radius is 178.6mm, the center of circle of front turn of bilge drop on radius be 363.3mm the 4th circumferentially; The center of circle of described first circumference, the 3rd circumference, the 4th circumference is concentric with base plate.
The one side center portion place that described base plate arranges blade is provided with the protective housing of taper or semicircular arc.Impeller baseplate center portion is connected with drive shaft, and protective housing can be used for protecting this position from erosion.
The bottom of described casing is provided with drain opening, carries moisture content stockpiling in casing for discharging air-flow.
The side of described casing is provided with viewing window.
The air outlet tube of described casing adopts flared tube, namely exports the cast of flaring.
The present invention drives the motor of blower fan and the base of mounted motor and blower fan, and described base is provided with spring vibration damper, for damping anti-noise.
The beneficial effects of the utility model:
The utility model fan impeller system is after improving, blade shape is revised as serpentine from normal linear or arc line shaped, its blade working Curve Design is scientific and reasonable, the energy consumption of blower fan system driving arrangement is effectively reduced through test, improve blower fan working efficiency, and be easy to manufacture, cost of production is low, is applicable to promoting the use of.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the side-looking structural representation of Fig. 1;
Fig. 3 is the plan structure schematic diagram of Fig. 1;
Fig. 4 is the structural representation of impeller;
Fig. 5 is the side elevational cross-section schematic diagram of impeller;
Fig. 6 is the structural representation of blade on base plate.
Embodiment
In order to illustrate the technical solution of the utility model further, below in conjunction with the drawings and specific embodiments, the utility model is described further.
As shown in Figures 1 to 6, a kind of modified model fan impeller system, comprises blower fan, motor and base 2.
Described blower fan is provided with casing 1 and impeller 3, and described impeller 3 comprises the regularly arranged blade on base plate 3-3 of multi-disc, and the top of blade is coated with the cover plate 3-2 of annular.
The radial section of described blade 3-1 is bending in " S " type, by turn of bilge 3-1-1 (bending direction is contrary with wheel rotation direction) after a section with one section before turn of bilge 3-1-2 (bending direction is identical with wheel rotation direction) to be integrally connected and smooth transition is formed.Vane inlet 3-4 is positioned at the medial extremity of rear turn of bilge 3-1-1, and blade exit 3-5 is positioned at the outboard end of front turn of bilge 3-1-2.
The top of described blade 3-1 is concave-curve, and as shown in Figure 5, described cover plate 3-2 is set to corresponding concave-curve plate body, and the radius of cover plate concave arc is 77.1mm.During actual use, the inner side of cover plate 3-2 is along extending straight-run of pipe (not shown) to fan outlet direction.
For the preferred implementation shown in Fig. 6, on circular bottom plate 3-3 during locating blade, on base plate 3-3, first set up one as the rectangular coordinate system of reference.
The rear turn of bilge 3-1-1 of first blade and the transition tie point of front turn of bilge 3-1-2 due to radius R 3 be the 3rd of 189.9mm the circumferentially.The central angle θ 3 of described rear turn of bilge 3-1-1 is 39.67 °, radius R 2 is 163.2mm, it is first of 64.3mm circumferentially that radius R 1 is dropped in the center of circle of rear turn of bilge 3-1-1, the line in the first circumference center of circle and the rear turn of bilge 3-1-1 center of circle and the angle theta 1 of Y direction are 42.81 °, the base plate 3-3 center of circle, the rear turn of bilge 3-1-1 center of circle to rear turn of bilge 3-1-1 medial extremity line between angle theta 2 be 23 °.The central angle θ 4 of described front turn of bilge 3-1-2 is 19.35 °, and radius R 5 is 178.6mm, the center of circle of front turn of bilge 3-1-2 drop on radius R 4 for 363.3mm the 4th circumferentially, and the tangent line of front turn of bilge 3-1-2 outermost points and the angle theta 5 of X-axis direction are 52 °.
The center of circle of the first above-mentioned circumference, the 3rd circumference, the 4th circumference, with all concentric with base plate 3-3, is concentric circle.Outer blade diameter D is about 450mm (namely centered by the base plate center of circle, the circle diameter at blade outermost end points place).
The center portion place that described base plate 3-3 arranges the one side of blade is provided with the protective housing (not shown) of taper or semicircular arc.Bottom and the side of described casing 1 are respectively provided with a mouth of pipe, and bottom mouth of pipe 1-1 is used as drain opening, and side mouth of pipe 1-2 is used as viewing window.The air outlet tube 1-3 of described casing 1 adopts flared tube, and be fixed in casing 1 main body by flange, flared tube entrance point puts in casing cavity.
Described motor is arranged on base 2, and the casing of blower fan is also supported on base 2 by frame.Described base 2 comprises upper and lower two-layer plate body, is provided with spring vibration damper 2-1 between two-layer plate body.
More than show and describe basic principle of the present utility model, major character and advantage of the present utility model.The technician of the industry should understand, the utility model is not restricted to the described embodiments, what describe in above-described embodiment and specification just illustrates principle of the present utility model, and under the prerequisite not departing from the utility model spirit and scope, the utility model also has various changes and modifications.The claimed scope of the utility model is defined by appending claims, specification and equivalent thereof.
Claims (8)
1. a modified model fan impeller system, comprise blower fan, described blower fan is provided with casing (1) and impeller (3), described impeller (3) comprises the multiple regularly arranged blade (3-1) be fixed on base plate (3-3), annular cover plate (3-2) covers the top being fixed on blade, it is characterized in that, described blade (3-1) is bending in " S " type, integrally connected and composed by turn of bilge (3-1-2) before turn of bilge (3-1-1) after a section and a section, vane inlet is positioned at the medial extremity of rear turn of bilge (3-1-1), blade exit is positioned at the outboard end of front turn of bilge (3-1-2).
2. a kind of modified model fan impeller system according to claim 1, is characterized in that, the top of described blade (3-1) is concave-curve, and described cover plate (3-2) is set to corresponding concave-curve plate body.
3. a kind of modified model fan impeller system according to claim 1, is characterized in that, it is the 3rd of 189.9mm the circumferentially that the transition tie point of described rear turn of bilge (3-1-1) and front turn of bilge (3-1-2) is positioned at radius; The central angle of described rear turn of bilge (3-1-1) is 39.67 °, and radius is 163.2mm, and it is first of 64.3mm circumferentially that radius is dropped in the center of circle of rear turn of bilge (3-1-1); The central angle of described front turn of bilge (3-1-2) is 19.35 °, and radius is 178.6mm, the center of circle of front turn of bilge (3-1-2) drop on radius be 363.3mm the 4th circumferentially;
The center of circle of described first circumference, the 3rd circumference, the 4th circumference is concentric with base plate (3-3).
4. a kind of modified model fan impeller system according to claim 1, is characterized in that, the one side center portion place that described base plate (3-3) arranges blade is provided with the protective housing of taper or semicircular arc.
5. a kind of modified model fan impeller system according to claim arbitrary in claim 1-4, it is characterized in that, the bottom of described casing (1) is provided with drain opening.
6. a kind of modified model fan impeller system according to claim arbitrary in claim 1-4, it is characterized in that, the side of described casing (1) is provided with viewing window.
7. a kind of modified model fan impeller system according to claim arbitrary in claim 1-4, it is characterized in that, the air outlet tube of described casing (1) is set to flared tube.
8. a kind of modified model fan impeller system according to claim arbitrary in claim 1-4, it is characterized in that, also comprise and drive the motor of blower fan and the base (2) of mounted motor and blower fan, described base (2) is provided with spring vibration damper (2-1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699146.5U CN204419694U (en) | 2014-11-19 | 2014-11-19 | Modified model fan impeller system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420699146.5U CN204419694U (en) | 2014-11-19 | 2014-11-19 | Modified model fan impeller system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204419694U true CN204419694U (en) | 2015-06-24 |
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ID=53470071
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420699146.5U Expired - Fee Related CN204419694U (en) | 2014-11-19 | 2014-11-19 | Modified model fan impeller system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204419694U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606169A (en) * | 2021-08-05 | 2021-11-05 | 星光正工（江苏）采棉机有限公司 | High-pressure fan |
-
2014
- 2014-11-19 CN CN201420699146.5U patent/CN204419694U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113606169A (en) * | 2021-08-05 | 2021-11-05 | 星光正工（江苏）采棉机有限公司 | High-pressure fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150624 Termination date: 20151119 |
|
| EXPY | Termination of patent right or utility model |