CN201610855U - Centrifugal ventilator - Google Patents
Centrifugal ventilator Download PDFInfo
- Publication number
- CN201610855U CN201610855U CN2010201207552U CN201020120755U CN201610855U CN 201610855 U CN201610855 U CN 201610855U CN 2010201207552 U CN2010201207552 U CN 2010201207552U CN 201020120755 U CN201020120755 U CN 201020120755U CN 201610855 U CN201610855 U CN 201610855U
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- blades
- centrifugal
- linear leaf
- blade
- short blade
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- Expired - Fee Related
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Abstract
The utility model discloses a centrifugal ventilator, comprising a supporting bracket; an electrical machine is connected on the supporting bracket; the output shaft of the electrical machine is connected with a vane wheel installed in the centrifugal shell; the shell is provided with an air intake and an air outlet; the vane wheel comprises a front disc and a rear disc; the connecting blades are uniformly distributed between the front disc and the rear disc along the periphery; the blades comprise long blades and short blades which are uniformly arranged alternately; and the included angle beta of the air outlet of the blades is 90+/-1 DEG. The flow of the ventilator is increased under overall increasing pressure value since the long blades and the short blades are uniformly arranged alternately and the included angle beta of the air outlet of the blades is 90+/-1 DEG; the centrifugal ventilator has compact structure, low occupied area, convenient assembly and maintenance, high efficiency, low energy consumption and low cost, and has the characteristics of high flow, suitable pressure, wide adjustment range, stable work and stable operation, thereby being capable of adjusting the blowing rate; and the centrifugal ventilator is applied to the power transport of rice and cotton when processing.
Description
Technical field
The utility model belongs to grain processing equipment, is specifically related to a kind of centrifugal fan.
Background technique
For a long time, the wind-force wind conveyer kind that China is used on the grain processing equipment is few, but wind-force wind conveyer or flow that present food supply food process equipment is selected for use are too big, or flow is too little, is difficult to adapt to the requirement of grain processing.The blower fan of extensive use adopts belt transmission on the grain processing equipment at present, its physical dimension is big, and the layout at blade shape and air-out angle causes this fan delivery less than normal, adds to be prone to putty man-hour, even fall problems such as material, make grain processing technology be difficult to the effect that reaches satisfied.If the raising air quantity, just necessary expanded motor power, thus cause the energy consumption in the course of working higher, increase processing cost.And the corresponding a kind of air quantity of a kind of blower fan of model, can't directly change the air quantity size, caused the Applicable scope of blower fan little.
Summary of the invention
The purpose of this utility model be to provide a kind of can be under the situation that comprehensively promotes the total head value augmented flow, and can regulate air quantity, installation and maintenance are convenient, the centrifugal fan of high efficiency, low cost is to address the above problem.
The technical solution of the utility model is: a kind of centrifugal fan, it comprises supporting frame, connect motor on the supporting frame, the output shaft of motor connects impeller, and impeller is located in the centrifugal casing, casing is provided with intake grill and exhaust outlet, impeller comprises shroud and hub disk, and evenly distributing along circumference between shroud and the hub disk is connected blade, and described blade comprises linear leaf and short blade, linear leaf and short blade are alternately evenly arranged, and the exhaust outlet angle β of linear leaf and short blade is 90 ° ± 1 °.
The length of described short blade is 1/3 of linear leaf length.
The sheet number of described linear leaf and short blade all is 8 or 10 or 12 or 16.
Described exhaust outlet place is provided with the damper of quantity-adjustable, so that regulate the air quantity of blower fan, thereby is suitable for various working.
Because this blower fan adopts motor direct connection examination structure, what is more important, the blade of blower fan adopts linear leaf and the short blade of alternately evenly arranging, and the exhaust outlet angle β of blade is 90 ° ± 1 °, make this blower fan can be under the situation that comprehensively promotes the total head value augmented flow, it has compact structure, floor space is little, installation, maintenance is convenient, efficient is high, and energy consumption is low, and cost is low.Flow is big, moderate pressure, and the property regulation scope is wide, and stable working is reliable, can regulate characteristics such as air quantity size, is applicable to that grain, cotton add the power in man-hour and carry.
Description of drawings
Fig. 1 structural representation of the present utility model.
Fig. 2 profile schematic representation of the present utility model.
Fig. 3 vane collocation schematic representation.
Fig. 4 blade wheel structure schematic representation.
Fig. 5 linear leaf plan view.
Fig. 6 short blade plan view.
Fig. 7 linear leaf plan view.
Fig. 8 short blade plan view.
Embodiment
As shown in Figure 1, the output shaft of motor 3 connects impeller 6, and impeller 6 is located in the centrifugal casing 4.Casing 4 is provided with intake grill and exhaust outlet, intake grill by air intake with frustum and arc outlet air end air intake pipe 7 constitute, form air inlet chamber.Described exhaust outlet place is provided with the damper of quantity-adjustable, so that regulate the air quantity of blower fan, thereby is suitable for various working.
As shown in Figure 2, centrifugal fan comprises supporting frame 1, and supporting frame 1 has damping disc 2, and motor 3 is fastened on the supporting frame 1.Casing 4 is provided with deashing door 5.
Shown in Fig. 3,4, impeller 6 comprises shroud 8 and hub disk 9, evenly is alternately distributed along circumference between shroud 8 and the hub disk 9 to be connected linear leaf 10 and short blade 11.The sheet number of described linear leaf 10 and short blade 11 can all be 8 or 10 or 12 or 16.The exhaust outlet angle β of linear leaf 10 and short blade 11 is 90 ° ± 1 °.The shape of centrifugal casing 4, be that aerodynamics sketch map dimension ratio is: F1=4.5: F2=5.5: F3=6.5: F4=7.5: R=54.5, the intake grill maximum diameter φ 1 of aerodynamics sketch map dimension ratio air inlet chamber: the minimum major diameter φ 3 of intake grill: the exhaust outlet diameter phi 4 of air inlet chamber: the width B 6 of casing 4 outlets: the outlet length B7 of casing 4: the width B 3=57 of impeller 6: 46: 49: 25: 50: 18.
Shown in Fig. 5,6,7,8, the length of short blade 11 is 1/3 of linear leaf 10 length, and H3: H4: H2=(H0/3): (H2+H3tg7.6 °): 9.5, and wherein limit H2, limit H4 are vertical with limit H3; H0: H1: H2=33: 14: 9.5, wherein limit H2, limit H1 were vertical with limit H0.
Above ventilator constitutes DL7-40 series centrifugal fan.
Claims (4)
1. centrifugal fan, it comprises supporting frame, connect motor on the supporting frame, the output shaft of motor connects impeller, and impeller is located in the centrifugal casing, casing is provided with intake grill and exhaust outlet, impeller comprises shroud and hub disk, and evenly distributing along circumference between shroud and the hub disk is connected blade, it is characterized in that described blade comprises linear leaf and short blade, linear leaf and short blade are alternately evenly arranged, and the exhaust outlet angle β of linear leaf and short blade is 90 ° ± 1 °.
2. centrifugal fan as claimed in claim 1, its feature is 1/3 of a linear leaf length in the length of described short blade.
3. centrifugal fan as claimed in claim 1 or 2, the sheet number that it is characterized in that described linear leaf and short blade all is 8 or 10 or 12 or 16.
4. centrifugal fan as claimed in claim 1 is characterized in that described exhaust outlet place is provided with the damper of quantity-adjustable.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201207552U CN201610855U (en) | 2010-02-23 | 2010-02-23 | Centrifugal ventilator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201207552U CN201610855U (en) | 2010-02-23 | 2010-02-23 | Centrifugal ventilator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201610855U true CN201610855U (en) | 2010-10-20 |
Family
ID=42961488
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201207552U Expired - Fee Related CN201610855U (en) | 2010-02-23 | 2010-02-23 | Centrifugal ventilator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201610855U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787577A (en) * | 2011-12-23 | 2012-11-21 | 郑念新 | Lawn garbage sweeping machine |
| CN113803273A (en) * | 2021-10-20 | 2021-12-17 | 江阴市新启点环境科技有限公司 | Alloy aluminum impeller with staggered blade distribution structure |
-
2010
- 2010-02-23 CN CN2010201207552U patent/CN201610855U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102787577A (en) * | 2011-12-23 | 2012-11-21 | 郑念新 | Lawn garbage sweeping machine |
| CN113803273A (en) * | 2021-10-20 | 2021-12-17 | 江阴市新启点环境科技有限公司 | Alloy aluminum impeller with staggered blade distribution structure |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20101020 Termination date: 20140223 |