CN201621097U - Centrifugal ventilator impeller with length-adjustable blade - Google Patents
Centrifugal ventilator impeller with length-adjustable blade Download PDFInfo
- Publication number
- CN201621097U CN201621097U CN2010201084552U CN201020108455U CN201621097U CN 201621097 U CN201621097 U CN 201621097U CN 2010201084552 U CN2010201084552 U CN 2010201084552U CN 201020108455 U CN201020108455 U CN 201020108455U CN 201621097 U CN201621097 U CN 201621097U
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- blade
- flange
- centrifugal ventilator
- length
- rivet
- Prior art date
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- Expired - Fee Related
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Abstract
The utility model relates to a centrifugal ventilator impeller with a length-adjustable blade, which belongs to the technical field of ventilation motors and comprises a blade, a large flange, a small flange, an air inlet port, a shaft flange and a rivet. One end of the blade is fixed on one side of the large flange through the small flange and the other end thereof is tightly close to the air inlet port, and the large flange is fixed on the shaft flange through the rivet. The centrifugal ventilator impeller is characterized in that the blade has adjustable circumferential diameter, and the tail end of the blade is closed. The centrifugal ventilator impeller can adjust the wind power of the centrifugal ventilator by changing the circumferential diameter D of the blade, so as to improve efficiency and save energy. The centrifugal ventilator impeller can be extensively used.
Description
Technical field
The utility model belongs to the ventilation motor technical field, the adjustable Centrifugal Fan Impeller of particularly a kind of length of blade.
Background technique
In the centrifugal blower running, the keying degree of taking usually to change throttling arrangement carries out the air quantity adjusting, and still, when actual air volume and aequum difference were excessive, this regulating method efficient was low, and waste electric power is more, also is difficult to realize institute's required airflow sometimes.The ventilator that uses adopts K4-73 and 4-72 series more at present, main frame and 2500 kilowatts of motor direct connections of large-scale K4-73 series ventilator, and artificial resistance trimming is regulated operating conditions, causes idle energy consumption up to 7,790,000 kilowatt hours, and waste is big; Though the highest total pressure efficiency of middle-size and small-size 4-72 series ventilator is 90%, be meant to be applicable to that middle small mine uses, and is non-energy-conserving product.
Summary of the invention
At the deficiencies in the prior art, the utility model provides a kind of length of blade adjustable Centrifugal Fan Impeller, and is adjustable to reach ventilator wind-force by adjusting blade outside diameter dimensional structure, the purpose of energy saving.
Structure of the present utility model is to realize like this, this fan impeller comprises blade, big flange, little flange, intake grill, shaft flange, rivet, wherein an end of blade is fixed on big flange one side by little flange, the other end of blade is close to intake grill, big flange is fixed on the shaft flange by rivet, the outside diameter that it is characterized in that blade adopts the different structure of length, and wherein the blade tail end is for remaining silent.
Blade outside diameter before working principle of the present utility model: D represents to adjust is former impeller diameter,
Blade outside diameter after expression is regulated and the ratio of regulating preceding outside diameter, hence one can see that, and blade is longer
Bigger, the blast characteristic is higher, and when just blade was too short, efficient just had obvious decline.
Advantage of the present utility model: by adjusting the blade outside diameter, realize that ventilator wind-force is adjustable, can raise the efficiency, save the energy, extensive use to change D.
Description of drawings
Fig. 1 the utility model length of blade is adjustable Centrifugal Fan Impeller structural drawing;
Fig. 2 the utility model length of blade is adjustable Centrifugal Fan Impeller left view;
The blade structure figure of the adjustable Centrifugal Fan Impeller of Fig. 3 the utility model length of blade;
Among the figure: 1 big flange, 2 blades, 3 intake grills, 4 shaft flanges, 5 rivets, 6 little flanges.
Embodiment
Centrifugal Fan Impeller detailed structure that the utility model length of blade is adjustable reaches accompanying drawing in conjunction with the embodiments and is described in detail.
This fan impeller comprises blade 2, big flange 1, little flange 6, intake grill 3, shaft flange 4, rivet 5, wherein the height of blade 2 is 24.7mm, one end of blade 2 is fixed on big flange 1 one sides by little flange 6, the other end of blade 2 is close to intake grill 3, big flange 1 is fixed on the shaft flange 4 by rivet 5, the outside diameter that it is characterized in that blade 2 adopts the different structure of length, and wherein blade 2 tail ends are for remaining silent.
Claims (1)
1. adjustable Centrifugal Fan Impeller of length of blade, this fan impeller comprises blade, big flange, little flange, intake grill, shaft flange, rivet, wherein an end of blade is fixed on big flange one side by little flange, the other end of blade is close to intake grill, big flange is fixed on the shaft flange by rivet, the outside diameter that it is characterized in that blade adopts the different structure of length, and wherein the blade tail end is for remaining silent.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201084552U CN201621097U (en) | 2010-02-05 | 2010-02-05 | Centrifugal ventilator impeller with length-adjustable blade |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201084552U CN201621097U (en) | 2010-02-05 | 2010-02-05 | Centrifugal ventilator impeller with length-adjustable blade |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201621097U true CN201621097U (en) | 2010-11-03 |
Family
ID=43024552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201084552U Expired - Fee Related CN201621097U (en) | 2010-02-05 | 2010-02-05 | Centrifugal ventilator impeller with length-adjustable blade |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201621097U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949094A (en) * | 2017-05-18 | 2017-07-14 | 安徽朗迪叶轮机械有限公司 | A kind of length-adjustable through-flow fan blade |
-
2010
- 2010-02-05 CN CN2010201084552U patent/CN201621097U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106949094A (en) * | 2017-05-18 | 2017-07-14 | 安徽朗迪叶轮机械有限公司 | A kind of length-adjustable through-flow fan blade |
| CN106949094B (en) * | 2017-05-18 | 2019-02-05 | 安徽朗迪叶轮机械有限公司 | A kind of length-adjustable through-flow fan blade |
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101103 Termination date: 20130205 |