CN202690526U - Draught fan impeller - Google Patents
Draught fan impeller Download PDFInfo
- Publication number
- CN202690526U CN202690526U CN 201220291246 CN201220291246U CN202690526U CN 202690526 U CN202690526 U CN 202690526U CN 201220291246 CN201220291246 CN 201220291246 CN 201220291246 U CN201220291246 U CN 201220291246U CN 202690526 U CN202690526 U CN 202690526U
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- CN
- China
- Prior art keywords
- wheel disc
- blade
- wheel plate
- draught fan
- fan impeller
- Prior art date
- 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 - Lifetime
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Abstract
The utility model discloses a draught fan impeller which is connected with a driving device. The draught fan impeller comprises a front wheel plate, a rear wheel plate, a fixed wheel plate and plural blades, wherein a wind inlet port is arranged at the center of the front wheel plate, the outer surface of the front wheel plate is an annular surface having a conical degree, and the rear wheel plate is provided with a connection portion used for being connected with the driving device. The fixed wheel plate is arranged between the front wheel plate and the rear wheel plate, each blade is provided with an upper edge and a lower edge, the plural blades are connected with the fixed wheel plate in embedded mode at intervals, the upper edge of each blade abuts against the front wheel plate, and the lower edge of each blade abuts against the rear wheel plate. The draught fan impeller has the advantages that air flow rate is successively enhanced from the front end of each blade to the rear end of each blade, air dynamic pressure is increased, the air flow rate is gradually improved, power is gradually enhanced, and therefore use efficiency of a draught fan is effectively improved, and energy consumption is reduced.
Description
[technical field]
The utility model relates to fan impeller structure, relates in particular to a kind of for the draught fan impeller on the centrifugal fan.
[background technique]
To be China be called for short the custom of gas compression and gas conveying machinery blower fan, and usually said blower fan comprises logical
Blower fan, blower, wind-driven generator is widely used in ventilation, dust discharge and the cooling of factory, mine, tunnel, cooling tower, vehicle, boats and ships and building; The ventilation of boiler and industrial furnace and air inducing; Cooling in the apparatus of air conditioning and the domestic electric appliance and ventilation; The oven dry of cereal and selecting and recommending; The inflation of wind-tunnel wind regime and Hovercraft and propelling etc.Centrifugal fan is widely used because it has higher blast, it mainly is comprised of impeller and casing, and impeller is the critical piece of ventilator, at present, most of impeller upper blades are flat, when blower fan turned round, blade can be subject to the effect of a centrifugal force, so that blade can produce bending deflection at axis direction, the flowing velocity that has stoped air-flow, reduced the power of impeller, thereby reduced the utilization efficiency of blower fan, energy consumption is also large.
[summary of the invention]
The purpose of this utility model is effectively to overcome the deficiency of above-mentioned technology, and a kind of flowing velocity that can increase air-flow is provided, and improves the utilization efficiency of blower fan, and can reduce the draught fan impeller of energy consumption.
The technical solution of the utility model is achieved in that it is connected with drive unit, comprising:
One front wheel disc, the center of described front wheel disc has an intake grill, and the outer surface of front wheel disc is the ring surface with tapering;
One rear trochal disc, described rear trochal disc are provided with the joint that is connected for described drive unit;
One fixing wheel disc, described fixedly wheel disc is arranged between front wheel disc and the rear trochal disc;
And plurality of vanes, described blade has a top edge and a lower limb, and the plurality of vanes interval is embedded on the described fixedly wheel disc; The top edge of described blade and described front wheel disc fix; Lower limb and described rear trochal disc fix;
In the said structure, described blade is curved, and arc shaped blade has front-end and back-end, and front end to the width of rear end successively decreases successively;
In the said structure, the front end of described blade points to the center of described fixedly wheel disc, and the rear end extends the fixedly outward edge of wheel disc;
In the said structure, the rear end of described blade is embedded on the described fixedly wheel disc;
In the said structure, described blade is with fixedly wheel disc is vertical;
In the said structure, the spacing between adjacent two blades equates;
In the said structure, described joint is the attachment hole that is arranged at the rear trochal disc center.
The beneficial effects of the utility model are: the plurality of vanes spacing that comprises in the utility model equates is embedded in fixedly on the wheel disc, and the top edge of blade and front wheel disc connect, lower limb and rear trochal disc connect, strengthened the soundness of impeller, blade is curved, arc shaped blade has front-end and back-end, front end to the width of rear end successively decreases successively, this structure is so that air-flow when entering blade, and air-flow velocity strengthens successively from blade front end to rear end, and air hydrodynamic increases, air-flow penetrates by runner, improve the power of impeller, thereby improved the utilization efficiency of blower fan, reduced energy consumption.
[description of drawings]
Fig. 1 is the structural representation of the utility model draught fan impeller.
In figure: front wheel disc 1; Intake grill 2; Rear trochal disc 3; Fixedly wheel disc 4; Blade 5; Blade top edge 6; Blade lower limb 7; Blade front end 8; Blade rear end 9.
[embodiment]
The utility model will be further described below in conjunction with drawings and Examples.
With reference to shown in Figure 1, the draught fan impeller that the utility model discloses, it comprises a front wheel disc 1, rear trochal disc 3, fixedly wheel disc 4 and plurality of vanes 5, wherein, the center of described front wheel disc 1 has an intake grill 2, the outer surface of front wheel disc 1 is the ring surface with tapering, and namely front wheel disc 1 is the circular of taper; Rear trochal disc 3 is provided with the joint that is connected for described drive unit, and joint is the attachment hole that is arranged at rear trochal disc 3 centers; Described fixedly wheel disc 4 is arranged between front wheel disc 1 and the rear trochal disc 3, this fixedly wheel disc 4 be the ring structure of hollow; Described blade 5 has a top edge 6 and a lower limb 7, and plurality of vanes 5 equally spaced intervals are embedded on the described fixedly wheel disc 4; Top edge 6 and the described front wheel disc 1 of described blade 5 fix; Lower limb 7 fixes with described rear trochal disc 3, has strengthened the soundness of impeller and simple in structure.
Better, described blade 5 is curved, arc shaped blade 5 has a front end 8 and rear end 9,9 width successively decreases blade front end 8 successively to the rear end, be that the wide rear end of front end 89 is narrow, the front end 8 of blade 5 points to the center of described fixedly wheel disc 4, rear end 9 extends the fixedly outward edge of wheel disc 4, the rear end 9 of blade 5 is embedded in fixedly on the wheel disc 4 and perpendicular to fixing wheel disc 4, this structure is so that air-flow when entering blade 5, and air-flow velocity 9 strengthens to the rear end successively from blade front end 8, and air hydrodynamic increases the power that has improved impeller, thereby improved the utilization efficiency of blower fan, reduced energy consumption.
Or with reference to shown in Figure 1, draught fan impeller is when High Rotation Speed, air-flow at first enters arc shaped blade front end 8 parts by the intake grill 2 at front wheel disc 1 center, and then outwards sliding to transmit enters blade rear end 9 parts, again by penetrating behind the Fan casing runner, 9 width successively decreases arc shaped blade front end 8 successively to the rear end, so that the air hydrodynamic that enters increases, speed strengthens gradually, power increases gradually, effectively raises the utilization efficiency of blower fan.
Described above only is preferred embodiment of the present utility model, and above-mentioned specific embodiment is not to restriction of the present utility model.In technological thought category of the present utility model, various distortion and modification can appear, and the retouching that all those of ordinary skill in the art make according to above description, revise or be equal to replacement, all belong to the scope that the utility model is protected.
Claims (7)
1. a draught fan impeller is connected with drive unit; It is characterized in that: it comprises
One front wheel disc, the center of described front wheel disc has an intake grill, and the outer surface of front wheel disc is the ring surface with tapering;
One rear trochal disc, described rear trochal disc are provided with the joint that is connected for described drive unit;
One fixing wheel disc, described fixedly wheel disc is arranged between front wheel disc and the rear trochal disc;
And plurality of vanes, described blade has a top edge and a lower limb, and the plurality of vanes interval is embedded on the described fixedly wheel disc; The top edge of described blade and described front wheel disc fix; Lower limb and described rear trochal disc fix.
2. draught fan impeller according to claim 1, it is characterized in that: described blade is curved, and arc shaped blade has front-end and back-end, and front end to the width of rear end successively decreases successively.
3. draught fan impeller according to claim 2, it is characterized in that: the front end of described blade points to the center of described fixedly wheel disc, and the rear end extends the fixedly outward edge of wheel disc.
4. each described draught fan impeller in 3 according to claim 1, it is characterized in that: the rear end of described blade is embedded on the described fixedly wheel disc.
5. draught fan impeller according to claim 4, it is characterized in that: described blade is with fixedly wheel disc is vertical.
6. draught fan impeller according to claim 4 is characterized in that: the spacing between adjacent two blades equates.
7. draught fan impeller according to claim 1, it is characterized in that: described joint is the attachment hole that is arranged at the rear trochal disc center.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291246 CN202690526U (en) | 2012-06-20 | 2012-06-20 | Draught fan impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220291246 CN202690526U (en) | 2012-06-20 | 2012-06-20 | Draught fan impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202690526U true CN202690526U (en) | 2013-01-23 |
Family
ID=47546152
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220291246 Expired - Lifetime CN202690526U (en) | 2012-06-20 | 2012-06-20 | Draught fan impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202690526U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218250A (en) * | 2017-07-18 | 2017-09-29 | 杭州电子科技大学 | A kind of refrigerator centrifugal fan impeller |
-
2012
- 2012-06-20 CN CN 201220291246 patent/CN202690526U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107218250A (en) * | 2017-07-18 | 2017-09-29 | 杭州电子科技大学 | A kind of refrigerator centrifugal fan impeller |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: SHENZHEN GOLDENWAY TECHNOLOGY CO.,LTD. Assignor: Yu Peiyong Contract record no.: 2014440020097 Denomination of utility model: Centrifugal fan impeller and volute-less centrifugal fan employing same Granted publication date: 20130123 License type: Exclusive License Record date: 20140402 |
|
| LICC | Enforcement, change and cancellation of record of contracts on the licence for exploitation of a patent or utility model | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130123 |
|
| CX01 | Expiry of patent term |