CN205298059U - Ultra -high pressure coefficient axial fan for generator - Google Patents
Ultra -high pressure coefficient axial fan for generator Download PDFInfo
- Publication number
- CN205298059U CN205298059U CN201521020488.0U CN201521020488U CN205298059U CN 205298059 U CN205298059 U CN 205298059U CN 201521020488 U CN201521020488 U CN 201521020488U CN 205298059 U CN205298059 U CN 205298059U
- Authority
- CN
- China
- Prior art keywords
- blade
- angle
- installing hole
- wheel hub
- profile
- 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.)
- Active
Links
Landscapes
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model discloses an ultra -high pressure coefficient axial fan for generator, including wheel hub and a plurality of blade, the blade includes blade profile subtotal petiole part, evenly be equipped with a plurality of mounting hole along circumference on wheel hub's the rim, the mounting hole is the same with blade quantity, the petiole part of blade sets up in the mounting hole through the blade retention fastener, the blade profile part of blade is the distortion of X type from the apex to the blade root, the distortion angle is 45~60, the wing section central line of blade profile part is two circular arc lines, the wing section bending angle of blade profile part is 30~45, wheel hub is than being 0.7~0.75. The utility model discloses can provide the higher pressure and the great amount of wind for the electric machine cooling system, improve axial fan's total head efficiency greatly, make axial fan's performance better, temperature rise, efficiency performance requirement in the time of can satisfying the motor operation.
Description
Technical field
This utility model relates to electric motor fan technical field, particularly relates to a kind of electromotor hyperpressure coefficient aerofoil fan.
Background technology
Fan of generator rotor is the critical component of motor ventilation radiator structure, the main performance index such as temperature rise and efficiency of directly affecting motor, and especially salient pole series generator product often adopts axially and radially mixed ventilation way. Owing to axial ventilation conduit quantity is many, internal windage is very big, adopts conventional aerofoil fan cannot overcome its internal windage, it is easy to causing that internal air quantity is less than normal, motor temperature rise is higher. If fan runs on unstable region, motor resonance or leaf destruction can be caused, produce serious consequence.
Utility model content
The purpose of this utility model is in that to provide a kind of electromotor hyperpressure coefficient aerofoil fan, it is possible to provide higher pressure and bigger air quantity for electromotor cooling system, to meet the performance indications such as electric efficiency, temperature rise and noise.
For achieving the above object, the technical solution adopted in the utility model is:
A kind of electromotor hyperpressure coefficient aerofoil fan, including wheel hub and several blades, blade includes airfoil portion and divides and petiole part, the wheel rim of wheel hub is circumferentially uniformly provided with several installing holes, installing hole is identical with blade quantity, the petiole part of blade is arranged in installing hole by blade fixation fastener, the blade profile part of blade is the distortion in X-type from blade tip to blade root, distortion angle is 45 �� ~ 60 ��, the profile mean line of blade profile part is bicircular arcs line, the aerofoil profile angle of bend of blade profile part is 30 �� ~ 45 ��, and hub ratio is 0.7 ~ 0.75.
The blade profile part chord length of described blade is 350 ~ 450mm, and the aerofoil profile import geometry angle of blade profile part is 20 �� ~ 25 ��, and the aerofoil profile outlet geometry angle of blade profile part is 20 �� ~ 25 ��, and the established angle of blade is 20 �� ~ 25 ��.
Being removably connected with transition rings in described installing hole, the petiole part of blade is arranged in transition rings by blade fixation fastener, and transition rings both sides are provided with adjustment of blade angle securing member.
Described installing hole includes the upper and lower being interconnected, the internal diameter on installing hole top is less than the internal diameter of bottom, the shape of transition rings and installing hole match, and wheel hub is vertically provided with through hole on the wheel rim above transition rings, is provided with adjustment of blade angle securing member in through hole.
Described wheel hub is provided with drift angle scale value on the wheel rim of installing hole both sides.
Described drift angle scale value respectively �� 9 ��, �� 6 ��, �� 3 �� and 0 ��.
This utility model, by using X-type twisted blade and arranging the aerofoil profile parameter of blade, substantially increases the total pressure efficiency of aerofoil fan, and the performance making aerofoil fan is more excellent, it is possible to meet temperature rise when motor runs, efficiency performance requirement.
Further, this utility model by arranging rotating transition rings in the installing hole of blade, and drift angle scale value is set on the wheel rim of installing hole both sides, angle when blade runs can be regulated easily and accurately, meet motor air quantity demand under various working.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the mounting structure schematic diagram of this utility model blade;
Fig. 3 is the structural representation of this utility model blade;
Fig. 4 is the airfoil structure schematic diagram of this utility model blade.
Detailed description of the invention
As shown in Figures 1 to 4, electromotor hyperpressure coefficient aerofoil fan described in the utility model, including wheel hub 1 and several blades 2, wheel hub 1 is structure as a whole, circumferentially being uniformly provided with several installing holes on the wheel rim 3 of wheel hub 1, the quantity of installing hole is identical with blade 2. Installing hole is stepped, and including the upper and lower being interconnected, the internal diameter on installing hole top is less than the internal diameter of bottom. Being removably connected with transition rings 4 in installing hole, the shape of transition rings 4 and installing hole match, and namely transition rings 4 includes upper and lower, and the external diameter on top is less than the external diameter of bottom, and transition rings 4 can rotate in installing hole. Blade 2 is overall structure, and including blade profile part and petiole part, the petiole part of blade 2 is arranged in transition rings 4 by blade fixation fastener 5. Wheel hub 1 is vertically provided with through hole on the wheel rim 3 be positioned at both sides above transition rings 4, is provided with adjustment of blade angle securing member 6 in through hole, and adjustment of blade angle securing member 6 compresses transition rings 4 through through hole, thus being fixed on the wheel rim 3 of wheel hub 1. Adjustment of blade angle securing member 6 in the present embodiment is the screw bolt and nut being mutually matched, the nut of fixing bolt is tightened when transition rings 4 and blade 2 need to be fixed, when the setting angle of blade 2 need to be adjusted, loosen the nut of fixing bolt, and rotate transition rings 4 and make blade 2 adjust to correct position, last locking nut. Wheel hub 1 is additionally provided with on the wheel rim 3 of installing hole both sides �� 9 ��, �� 6 ��, the drift angle scale value of �� 3 �� and 0 �� printed words, it is simple to and manually accurately angle modulation.
The blade profile part of blade 2 is the distortion in X-type from blade tip to blade root, and distortion angle is 45 �� ~ 60 ��; The profile mean line of blade profile part is bicircular arcs line, the aerofoil profile angle of bend �� of blade profile partcFor aerofoil profile leading edge deflection k1With airfoil trailing edge deflection k2Sum, aerofoil profile angle of bend ��cSpan be 30 �� ~ 45 ��, wherein aerofoil profile leading edge deflection k1For the angle between the tangent line of aerofoil profile leading edge point place profile mean line and wing chord, airfoil trailing edge deflection k2For the angle between the tangent line of airfoil trailing edge point place profile mean line and wing chord; The aerofoil profile import geometry angle �� of blade 21AFor by aerofoil profile leading edge point to the angle between the done tangent line of profile mean line and front front, its span is 20 �� ~ 25 ��, the aerofoil profile of blade 2 outlet geometry angle ��2AFor by airfoil trailing edge point to the angle between the done tangent line of profile mean line and rear front, its span is 20 �� ~ 25 ��;The chord length of blade 2 is 350 ~ 450mm, established angle ��iIt it is 20 �� ~ 25 ��, it is possible to be effectively improved the acting ability of blade 2, without causing the decline of impeller adiabatic efficiency; The hub ratio of blade 2 is 0.7 ~ 0.75, it is possible to the effectively pressure head of lift shaft flow fan, meets hyperpressure coefficient demand.
Operation principle of the present utility model is: by the transition rings 4 in the petiole partial insertion installing hole of blade 2 during installation, and utilize blade fixation fastener 5 the petiole part of blade 2 and transition rings 4 to be fixed together, now blade 2 can rotate in installing hole with transition rings 4, utilizing adjustment of blade angle securing member 6 to be fixed in installing hole by transition rings 4, blade 2 can be properly functioning; When needing the setting angle regulating blade 2, loosen adjustment of blade angle securing member 6, the transition rings 4 of fixing blade 2 is just rotatable, rotate transition rings 4 to be adjusted by blade 2 to required angle, and then utilizing adjustment of blade angle securing member 6 to fix transition rings 4, blade 2 just can run by the setting angle after regulating. This utility model simple in construction, easy to adjust, it is possible to higher pressure and bigger air quantity to be provided for electromotor cooling system, fully meets the performance indications such as electric efficiency, temperature rise and noise.
Claims (6)
1. an electromotor hyperpressure coefficient aerofoil fan, including wheel hub and several blades, blade includes airfoil portion and divides and petiole part, the wheel rim of wheel hub is circumferentially uniformly provided with several installing holes, installing hole is identical with blade quantity, the petiole part of blade is arranged in installing hole by blade fixation fastener, it is characterized in that: the blade profile part of blade is the distortion in X-type from blade tip to blade root, distortion angle is 45 �� ~ 60 ��, the profile mean line of blade profile part is bicircular arcs line, the aerofoil profile angle of bend of blade profile part is 30 �� ~ 45 ��, and hub ratio is 0.7 ~ 0.75.
2. a kind of electromotor hyperpressure coefficient aerofoil fan as claimed in claim 1, it is characterized in that: the blade profile part chord length of described blade is 350 ~ 450mm, the aerofoil profile import geometry angle of blade profile part is 20 �� ~ 25 ��, the aerofoil profile outlet geometry angle of blade profile part is 20 �� ~ 25 ��, and the established angle of blade is 20 �� ~ 25 ��.
3. a kind of electromotor hyperpressure coefficient aerofoil fan as claimed in claim 1 or 2, it is characterized in that: in described installing hole, be removably connected with transition rings, the petiole part of blade is arranged in transition rings by blade fixation fastener, and transition rings both sides are provided with adjustment of blade angle securing member.
4. a kind of electromotor hyperpressure coefficient aerofoil fan as claimed in claim 3, it is characterized in that: described installing hole includes the upper and lower being interconnected, the internal diameter on installing hole top is less than the internal diameter of bottom, the shape of transition rings and installing hole match, wheel hub is vertically provided with through hole on the wheel rim above transition rings, is provided with adjustment of blade angle securing member in through hole.
5. a kind of electromotor hyperpressure coefficient aerofoil fan as claimed in claim 4, it is characterised in that: described wheel hub is provided with drift angle scale value on the wheel rim of installing hole both sides.
6. a kind of electromotor hyperpressure coefficient aerofoil fan as claimed in claim 5, it is characterised in that: described drift angle scale value respectively �� 9 ��, �� 6 ��, �� 3 �� and 0 ��.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020488.0U CN205298059U (en) | 2015-12-10 | 2015-12-10 | Ultra -high pressure coefficient axial fan for generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521020488.0U CN205298059U (en) | 2015-12-10 | 2015-12-10 | Ultra -high pressure coefficient axial fan for generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205298059U true CN205298059U (en) | 2016-06-08 |
Family
ID=56431172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521020488.0U Active CN205298059U (en) | 2015-12-10 | 2015-12-10 | Ultra -high pressure coefficient axial fan for generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205298059U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286350A (en) * | 2016-11-04 | 2017-01-04 | 广州市隧成建业物业发展有限公司 | Special fan |
-
2015
- 2015-12-10 CN CN201521020488.0U patent/CN205298059U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106286350A (en) * | 2016-11-04 | 2017-01-04 | 广州市隧成建业物业发展有限公司 | Special fan |
| CN106286350B (en) * | 2016-11-04 | 2019-03-05 | 广州市隧成建业物业发展有限公司 | Special fan |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101535657A (en) | Axial fan assembly | |
| EP2647837A2 (en) | Flatback slat for wind turbine | |
| CN106762780B (en) | Fan support and fan device comprising same | |
| US20100166556A1 (en) | Partial arc shroud for wind turbine blades | |
| HUE029762T2 (en) | Method for profiling a replacement blade as a replacement part for an old blade on an axial flow machine | |
| CN105134645A (en) | Impeller and centrifugal pump provided with same | |
| CN114396393A (en) | Bulb tubular pump guide vane self-adaptive design method and bulb tubular pump guide vane | |
| CN205298059U (en) | Ultra -high pressure coefficient axial fan for generator | |
| CN203670276U (en) | Axial flow wind wheel | |
| CN203783815U (en) | Wind turbine blade with speed adjusting device | |
| CN110939601A (en) | Turbocharger compressor impeller with high-performance blades | |
| CN201763681U (en) | Adjustable impeller structure of axial-flow air blower | |
| CN110701111B (en) | Method for reducing total pressure loss of guide vane of axial flow fan by using splitter vane | |
| CN111287993B (en) | Axial flow compressor | |
| CN102979764A (en) | Axial flow fan blade and fan | |
| CN108266234B (en) | Efficient rotary drum-level stator blade of industrial steam turbine | |
| CN2209231Y (en) | Rotary axial-flow fan | |
| CN201925111U (en) | Impeller hub for small-sized wind power generator | |
| CN220060007U (en) | Impeller with adjustable angle and energy-saving fan | |
| CN217129910U (en) | Impeller structure of high-pressure centrifugal fan | |
| CN108180168A (en) | A kind of compound bending fan blade and the fan including the blade | |
| CN202451463U (en) | Angle adjustable axial flow fan impeller | |
| CN204646780U (en) | A kind of front fan of motor | |
| CN203009389U (en) | Axial-flow fan | |
| CN204646781U (en) | A kind of aft-fan of motor |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |