CN2360648Y - Axial ventilator with wide root arc torsional overlapped impeller - Google Patents
Axial ventilator with wide root arc torsional overlapped impeller Download PDFInfo
- Publication number
- CN2360648Y CN2360648Y CN 98204845 CN98204845U CN2360648Y CN 2360648 Y CN2360648 Y CN 2360648Y CN 98204845 CN98204845 CN 98204845 CN 98204845 U CN98204845 U CN 98204845U CN 2360648 Y CN2360648 Y CN 2360648Y
- Authority
- CN
- China
- Prior art keywords
- blade
- propeller fan
- impeller
- cross
- blades
- 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 - Fee Related
Links
Images
Abstract
The utility model relates to an axial-flow ventilator with wide root arc torsional overlapped impellers. The utility model is characterized in that the shape and the size of impellers are changed on the basis of a fan composed of an air cylinder, an air collector, an impeller, a motor and a bottom frame, and the change is that a shaft end of the motor (4) is connected with a shaft disk (8) which is connected with a circular cylinder (9) to form hub which is connected with blades (6), and then a hub cover (7) is sealed. The back root part of the blades (6) is leveled with the back end face of the hub, and the front root part of the blades penetrates into the hub cover to form a wide root. An upper dead point A to a lower dead point B which are arranged on an axis of the blades (6) are provided with five sections for determining the shape of the blades, and the blades (6) are connected with the circular cylinder (9) in a torsional transitional connection mode at different angles. Compared with the existing fans, the performance of the utility model is enhanced, the noise is reduced by 7dB (A), the air pressure is enhanced by 16.3%, and the air volume is enhanced by 13.77%. The utility model has the advantages of beautiful appearance, and easy fabrication.
Description
A kind of propeller fan, particularly wide circular arc distortion overlapping impeller propeller fan, what relate to is mechanical blower fan technical field.
Propeller fan all is to be made of air duct, impeller, motor, support etc. substantially.Though with regard to structure, difference is little, different type of machines in various factors values such as air quantity, blast, noise, efficient, power consumptions, and has difference greatly, as the T35 axial-flow blower, and under the identical situation of power of motor (0.18KW), the low 530m of air quantity relatively
3/ h, apparent wind forces down 14.5Pa, and relative noise exceeds 7dB (A).
Above-mentioned difference causes the reason of defective to propeller fan, is the impeller of itself, is the shape of impeller and blade.
The purpose of this utility model is to provide a kind of wide circular arc torsional overlapped impeller, and with the propeller fan that this impeller is formed, with air quantity, the blast that improves it, reduces noise.
Above-mentioned purpose is realized by following technical proposal:
By air duct (1), wind collecting unit (2), impeller (3), motor (4), underframe (5), wherein impeller comprises that blade (6), hubcap (7), reel (8), cylinder (9) constitute overall structure.
The axle head of motor (4) connects reel (8), connects cylinder (9) by reel, connects blade (6) again behind the formation wheel hub, and hubcap (7) sealing-in at the cylinder front end, is constituted the composite structure of wide circular arc torsional overlapped impeller (3).
Be connected on the wheel hub is three same blades (6) of dividing equally on the direction.
The back root part of blade (6) is concordant with cylinder (9) ear end face, and preceding root is deep in the hubcap (7), forms wide impeller.
The top dead center A of blade (6) axis has five cross sections of definite blade shape to lower dead center B, and promptly the cross section one, two, three, four, five.This cross section is several to vary in size and can suitably increase and decrease according to blade.
The geometrical shape of blade (6) middle section one, two, three, four, five has nothing in common with each other.Be respectively 200,176,152,116 in its radial location, during 80mm, its radius of arc is respectively 520,451,405,382,377mm.According to the difference of blade shape size, radial location in this cross section (distance) and radius of arc all should make corresponding changes.
It is lineal shape that the blade edge shape shows in each cross section, and string is that transition is connected with the string of a musical instrument, wherein the string in one group of cross section one to five widely be respectively 156,158,162,172,188mm.This string is wide to vary in size according to blade, can amplify by a certain percentage or dwindle.
The connection angle of blade (6) and cylinder (9) is distortion transition angle ascending, from top to bottom, and the connection angle of one group is 25 °, 27.6 °, 30.7 °, 39 °, 54 °.This connection angle also can increase or reduce a certain " equal angular " in the several angle scope on former best angle (25 °, 27.6 °, 30.7 °, 39 °, 54 °) basis.
Change the Placement of underframe (5) and air duct (1), can be used as the propeller fan of various ways such as vertical, wall type, post formula, movable type.
Owing to taked above technological scheme, promptly use the propeller fan of wide circular arc torsional overlapped impeller, its performance improves greatly.With existing propeller fan, particularly to compare with T35 type blower fan, noise reduces 7dB (A), has only 65dB (A) when adopting 4 grades of motors.Blast improves 16.38% relatively, and air quantity improves 13.77%, and when especially blower fan reversed, the inverted ventilation amount reached 85% of positive air quantity, 84% when blast is righteous style and practice, and also beautiful shape is generous, and easy to manufacture.
Accompanying drawing of the present utility model and drawing explanation:
Fig. 1 is the overall structure figure of propeller fan.
Fig. 2 is the structural drawing of impeller.
Fig. 3 is the front view of impeller.
Fig. 4 is the formation schematic representation of blade.
Below in conjunction with drawings and Examples the utility model is done further narration:
As shown in Figure 1, constitute wide circular arc torsional overlapped impeller propeller fan overall structure by air duct 1, wind collecting unit 2, impeller 3, motor 4, underframe 5.
Inventive point of the present utility model is impeller 3, and other belongs to known technology.
As shown in Figure 2, impeller 3 is made up of blade 6, hubcap 7, reel 8, cylinder 9.The axle head of motor 4 connects reel 8, connect cylinder 9 by reel, behind the formation wheel hub, connect blade 6 again, the blade that is connected is the blade of the special shape of wide circular arc distortion stack, and with the connection angle of wheel hub be well-designed ascending distortion transition angle.The front end of cylinder connects the hubcap 7 of a circle with screw.
See Fig. 3: what connected on the wheel hub is the blade with same shape 6 of five equilibrium in three circumference angles.
Shown in Figure 4 as Fig. 2, the back root part of blade 6 is concordant with the ear end face of cylinder 9, and preceding root is deep in the hubcap 7, forms wide impeller, and according to the different type of machines in this series, the root of blade chord length is at 100～200mm.
See Fig. 4: to lower dead center B, be divided into five cross sections along the top dead center A of blade 6 axis, form cross section one, two, three, four, five.Each cross section determines that by its radius of arc that designs separately string is wide, and this string is the edge shape of blade 6 in its cross-sectional area, and each string is that transition is connected with the string of a musical instrument.String in the cross section one to five wide (a kind of embodiment) is respectively 156,158,162,172,188mm.Blade 6 is from front to back with the connection angle of cylinder 9, distortion transition angle from small to large, and the connection angle of one group the best is 25 °, 27.6 °, 30.7 °, 39 °, 54 °.
Change the Placement of underframe 5 and air duct 1, can be used as the propeller fan of various ways such as vertical, wall type, post formula, movable type.
The utility model DDT40 series low noise propeller fan under the identical in structure situation, becomes iron aluminium impeller if blade changes aluminum material into, can be changed into explosion-proof propeller fan; If all part changes the glass fibre reinforced plastics material into, can be changed into etch-proof propeller fan; If the glass fibre reinforced plastics impeller remakes the antistatic spraying treatmen, can be changed into explosion-proof, corrosion protection propeller fan; If blower fan integral spray SZ-1 anticorrosive coat or spraying heat-resistant anticorrosive layer can be changed into the heat-resisting propeller fan of corrosion protection or moisture-proof, but should adopt explosion-proof, corrosion protection, the relevant motor of moisture proof.
Claims (8)
1. propeller fan, particularly wide circular arc distortion overlapping impeller propeller fan, by air duct, wind collecting unit, impeller, motor, underframe, comprise that blade, hubcap, reel, cylinder form, be characterised in that: the axle head of motor (4) connects reel (8), connect cylinder (9) by reel, connect blade (6) again after forming wheel hub, hubcap (7) is encapsulated in the cylinder front end, constitutes the composite structure of wide circular arc distortion overlapping impeller (3).
2. propeller fan as claimed in claim 1 is characterized in that: being connected on the wheel hub is three same blades (6) of dividing equally on the direction.
3. propeller fan as claimed in claim 1 or 2 is characterized in that: the back root part of above-mentioned blade (6) is concordant with cylinder (9) ear end face, and preceding root is deep in the hubcap (7), forms wide blade impeller.
4. propeller fan as claimed in claim 1 or 2 is characterized in that: the top dead center A of above-mentioned blade (6) axis has five cross sections of definite blade shape to lower dead center B, that is: the cross section one, two, three, four, five.This cross section is several to vary in size and can suitably increase or reduce according to blade.
5. propeller fan as claimed in claim 1, it is characterized in that: the radius of arc in the cross section one, two, three, four, five of above-mentioned blade (6) is respectively 520,451,405,382,377mm, and its radial location is respectively 200,176,152,116,80mm.According to the difference of blade shape size, the radius of arc position (distance) in this cross section all should make corresponding changes.
6. propeller fan as claimed in claim 1 is characterized in that: it is lineal shape that the blade edge shape shows in each cross section: string is that transition is connected with the string of a musical instrument, wherein the string in 1 group of cross section one to five widely be respectively 156,158,162,172,188mm.This string is wide to vary in size according to blade, can amplify by a certain percentage or dwindle.
7. propeller fan as claimed in claim 1 is characterized in that: the connection angle of blade (6) and cylinder (9) is ascending, distortion transition angle from top to bottom, and the connection angle of one group is 25 °, 27.6 °, 30.7 °, 39 °, 54 °.
This connection angle, varying in size according to blade also can increase or reduce a certain " equal angular " in the several angle scope on former best connection angle (25 °, 27.6 °, 30.7 °, 39 °, 54 °) basis.
8. propeller fan as claimed in claim 1 is characterized in that: change the Placement of underframe (5) and air duct (1), can be used as the propeller fan of various ways such as vertical, wall type, post formula, movable type.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204845 CN2360648Y (en) | 1998-05-25 | 1998-05-25 | Axial ventilator with wide root arc torsional overlapped impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 98204845 CN2360648Y (en) | 1998-05-25 | 1998-05-25 | Axial ventilator with wide root arc torsional overlapped impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2360648Y true CN2360648Y (en) | 2000-01-26 |
Family
ID=33961364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 98204845 Expired - Fee Related CN2360648Y (en) | 1998-05-25 | 1998-05-25 | Axial ventilator with wide root arc torsional overlapped impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2360648Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275585B (en) * | 2007-03-09 | 2011-11-16 | Tlt-涡轮有限公司 | Device for hydraulic adjustment of the rotor blades of a wheel of an axial ventilator |
-
1998
- 1998-05-25 CN CN 98204845 patent/CN2360648Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101275585B (en) * | 2007-03-09 | 2011-11-16 | Tlt-涡轮有限公司 | Device for hydraulic adjustment of the rotor blades of a wheel of an axial ventilator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN2420228Y (en) | High performance propeller | |
| CN1793665A (en) | Low noise axial fan with rotary deflecting ring | |
| CN201884213U (en) | Wind power generator with vertical shaft | |
| CN2360648Y (en) | Axial ventilator with wide root arc torsional overlapped impeller | |
| CN1587714A (en) | Low noise high pressure centrifugal fan | |
| CN2338517Y (en) | Explosion-proof axial-flow electric fan for local ventilation | |
| US7854595B2 (en) | Wind turbine blade tip shapes | |
| CN213953987U (en) | Axial flow fan | |
| CN2248789Y (en) | Plastics axial fan | |
| CN2527761Y (en) | Forward bending twisted plate type axial flow fan blade | |
| CN106609731A (en) | Magnetic levitation gentle breeze electric generator | |
| CN2399543Y (en) | Impeller | |
| CN2767722Y (en) | Highly effective low-noise condensing axial flow fan of air conditioner for automobile | |
| CN1421615A (en) | Axial flow fan vane wheel with forward bent and twisted contour | |
| CN2458539Y (en) | Pneumatic screw propeller slinger | |
| CN2165270Y (en) | Adjustable axial-flow fan | |
| CN2747386Y (en) | Rear inclined centrifugal wind wheel | |
| CN202418036U (en) | Axial flow fan and air conditioner with same | |
| CN206830374U (en) | A kind of magnetic levitation freeze generator | |
| CN2534400Y (en) | Blades | |
| CN2828366Y (en) | Cylindrical rotor horizontal axis wind-mill generator | |
| CN2818836Y (en) | Small wind-driven generator with perpendicular shaft | |
| CN213655208U (en) | Bladeless fan air duct and bladeless fan | |
| CN110701104A (en) | Fan structure of fan | |
| CN2040182U (en) | Low-noise opposite-rotation and axial-flow local ventilator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |