CN201382017Y - Novel fan - Google Patents
Novel fan Download PDFInfo
- Publication number
- CN201382017Y CN201382017Y CN200920010055U CN200920010055U CN201382017Y CN 201382017 Y CN201382017 Y CN 201382017Y CN 200920010055 U CN200920010055 U CN 200920010055U CN 200920010055 U CN200920010055 U CN 200920010055U CN 201382017 Y CN201382017 Y CN 201382017Y
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- CN
- China
- Prior art keywords
- impeller
- transmission group
- housing
- blade
- fan
- 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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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model relates to a novel fan which comprises a housing, an impeller, a transmission group, a support frame and an electromotor. The housing of the fan is worm-shaped; an air inlet is formed on the end surface of the housing; the impeller is mounted in the housing; and the blade of the impeller is of a plate type curve structure. The transmission group is mounted on the support frame; the impeller is connected with the transmission group; and the transmission group is connected with the electromotor through a coupling. The utility model has the advantages of reasonable structure, high efficiency, low noise and good adjustment, as well as favorable economic benefit.
Description
Technical field
The utility model relates to a kind of novel fan.
Background technique
Circulating fluidized bed boiler is at home and abroad developed rapidly and is used widely as a kind of New-type boiler efficient, energy-saving and environmental protection, and it is compared the advantage that has and is with conventional boiler: have fuel tolerance wide, help environmental protection, load adjustment ability is good, ignition heat intensity big, the furnace heat transfer ability is strong, ash comprehensive utilization good.
The primary air fan that matches with circulating fluidized bed boiler has higher requirement, requires the fan pressure height, has modulability preferably.Common blower fan is the mode that straight line is connected with curve because of the blade structure of impeller, and blade outlet angle is greater than 90 °, so the efficient of common blower fan does not reach higher requirement.
Summary of the invention
The novel fan that the blade that the purpose of this utility model provides a kind of impeller is board-like curvilinear structures, high working efficiency, noise is low.
For achieving the above object, the utility model is realized by the following technical solutions:
A kind of novel fan, comprise casing, impeller, transmission group, support and motor, it is characterized in that, casing is the volute housing, the casing end face is provided with intake grill, and impeller is installed in housing, and transmission group is rack-mount, impeller is connected with transmission group, and transmission group is connected with motor by coupling.
The blade of described impeller is board-like curvilinear structures, is welded in the middle of arc taper wheel cap and the plate shaped wheel disc.
Described blade quantity is 16, and inlet blade angle degree Φ is 22.37 °, and exit angle θ is 40 °-42 °.
Compared with prior art, the beneficial effects of the utility model are:
1. efficient height, peak efficiency can reach 89.8%, exceed prior art blower fan 7%.
2. blower fan aerodynamic force channel shape is reasonable, because of the blade-shaped line is board-like arbitrary curve, can reduce the impact of air-flow to blade to greatest extent.
3. noise is low, and best efficiency point is 10.2dB than A sound level, is lower than existing circulating fluidized bed boiler blower fan 5-8dB.
4. efficiently distinguish widely, flow-pressure diagram is smooth, thereby makes the adjusting function of blower fan good, and boiler is moved all from low-load (20%) to overburdening (110%) can be satisfied.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structure left view of Fig. 1;
Fig. 3 is the structural representation of impeller;
Fig. 4 is the structure left view of Fig. 3.
Embodiment
See Fig. 1, Fig. 2, a kind of novel fan, comprise casing 1, impeller 3, transmission group 4, support 5 and motor 7, the casing 1 of this device is the volute housing, casing 1 end face is provided with intake grill 2, and impeller 3 is installed in housing, and transmission group 4 is installed on the support 5, impeller 3 is connected with transmission group 4, and transmission group 4 is connected with motor 7 by coupling 6.
See Fig. 3, Fig. 4, the blade of impeller 3 is board-like arbitrary curve structure, adopts to be made from high grade steel, and is welded in the middle of arc taper wheel cap 8 and the plate shaped wheel disc 9.Impeller 3 is through dynamic balance calibration, and therefore running steadily has higher intensity and wear resistance, long service life.
Described blade quantity is 16, and inlet blade angle degree Φ is 22.37 °, and exit angle θ is 40 °-42 °.
Claims (1)
1, a kind of novel fan, comprise casing, impeller, transmission group, support and motor, it is characterized in that, casing is the volute housing, the casing end face is provided with intake grill, and impeller is installed in housing, and transmission group is rack-mount, impeller is connected with transmission group, and transmission group is connected with motor by coupling; The blade of described impeller is board-like curvilinear structures, is welded in the middle of arc taper wheel cap and the plate shaped wheel disc; Described blade quantity is 16, and inlet blade angle degree Φ is 22.37 °, and exit angle θ is 40 °-42 °.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010055U CN201382017Y (en) | 2009-01-08 | 2009-01-08 | Novel fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN200920010055U CN201382017Y (en) | 2009-01-08 | 2009-01-08 | Novel fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201382017Y true CN201382017Y (en) | 2010-01-13 |
Family
ID=41525494
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN200920010055U Expired - Lifetime CN201382017Y (en) | 2009-01-08 | 2009-01-08 | Novel fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201382017Y (en) |
-
2009
- 2009-01-08 CN CN200920010055U patent/CN201382017Y/en not_active Expired - Lifetime
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20100113 |
|
| CX01 | Expiry of patent term |